Wednesday, July 31, 2019

Nursing and Mrs. Newman

Mrs. Newman has been experiencing hoarseness and a change in her voice, but she did not seek medical help until she began to have difficulty swallowing. After being seen by her healthcare provider, she is scheduled for outpatient surgery for a direct laryngoscope to obtain a culture and take a biopsy. Mrs. Newman arrives at the outpatient surgical department at 6:30 am and is escorted to her room. The admitting nurse begins her assessment; 1. Which question is most important for the nurse to ask Mrs. Newman? A) Have you had anything to eat or drink since midnight?B) Are you taking any medications? C) Have you smoked any cigarettes in the last 24 hours? D) When was the last time you drank any alcohol? The admission nurse completes the admission assessment and starts an IV. Mrs. Newman is taken to the operating room for the biopsy. Sifter the procedure, Mrs. Newman is admitted into the PACU. 2. Which intervention will the PACU nurse implant first? A) Check the healthcare providerâ€⠄¢s prescriptions B) Monitors Mrs. Newman’s pulse OX C) Contain Mrs. Newman’s vital signs D) Assess Mrs. Newman’s gag reflex After 2 days Mrs.Newman calls the oncologist and reluctantly agrees to a total laryngectomy. Mrs. Newman comes to the oncology office to meet with the oncology nurse specializations to discuss the preoperative and postoperative care. Mrs. Newman tells them that she is very scared about having this surgery. She says that she has no questions about the medical aspects of the procedure, but states she is concerned about how her life will change. She tells the nurse she realizes she need to have the surgery but is ambivalent and doesn’t know is she will be able to go through with it after all. . Which nursing intervention is most helpful to mars Newman? A) Refer mars Newman to a psychologist to discuss her fears about having this surgery B) Give Mrs. Newman literature provided by the American cancer society C) Ask Mrs. Newman if she wou ld like to talk to someone who has had this surgery D) Tell Mrs. Newman iota is OK to be scared and hold her hands Mrs. Newman is concerned about singing in the country and western club and asks the ONS â€Å"how long do you think it will be before I can sing with my band again† 4. How should the ONS RESPOND?A) Request that the oncologist visit with Mrs. Newman and explain the procedure to her again B) Explain that her vocal cords will be removed, and that she will not be able to sing C) Reassure her that she will be able to sing with the band, but her voice may be different D) Ask Mrs. Newman if she understands what a total laryngectomy is The ONS has given verbal and written information to Mrs Newman answered any questions and is completing the physical assessment 5. Which question is important for the nurse to ask Mrs. Newman?A) When did you first notice any hoarseness in your voice? B) How long did you say have you been singing w/the band? C) How much alcohol do u drink a week? D) What foods are difficult for you to wallow? Mrs. Newman reports that she drinks occasionally, mainly on the weekends with friends. The nurse is more concerned that Ms Newman smokes one pack of cigarettes a day. She discusses this issue with mars Newman, who says â€Å"Don’t worry about my smoking. I will never smoke another cigarette again† 6. How should the nurse respond to help Mrs.Newman in her attempt to stop smoking? A) I know it will be hard and I am very proud of u B) You will kit be able to smoke after urn surgery C) anyone else in urn household smoke D) What steps is u going to take to stop smoking? Mrs. Newman discusses the surgery with her family and a woman from a laryngectomy support group. Mrs. Newman decides to go ahead and he a total larygectomy. 7. A referral to which member of the indiciplinary team will be most important for mars Newman prior to surgery: A) Case mangerB) Social worker C) Physical therapist D) Speech therapist The speech the rapist discusses with mars Newman alternative tech inquest for restoring her speech after surgery. Selection of the best techniques varies from person to person depending on their age and personal preferences. Esophageal speech is popular among laryngectomies because it costs less and can provide a more normal sounding voice than some of the other options. 8. Which statement describes esophageal speech?A) Generator held to the neck creates vibrations those form words when the client speaks B) Swallowed air used to create around and words in a controlled belch C) Vibration and sound are used to form words by occluding a valve over the stoma D) A handheld device delivers tone via a plastic tube that is inserted into the mouth After discussing her options with a speech therapist mars Newman demonstrates her ability to use esophageal speech she comments† I used to hear my son and his friends rack like this. Won’t he be surprised? Two days later, mars Newman is admitted to t he hospital accompanied by her husband and her two grown children.She is in the preoperative holding area. 9. Which interventions will the nurse implement? A) ask mars Newman if she has any concerns about the upcoming surgery B) Notify the surgeon that mars Newman has been admitted to the hospital C) Reassure mars Newman that her family can stay with her until surgery D) Retrained if mars Newman has any problems hearing or writing Mrs. Newman shares with the nurse that she is scared that no one will help her if she needs help and that she will not be able to talk anymore. 10. Which intervention should the nurse implement? A) Assure Mrs.Newman that someone will be with her at all times B) Provide a bell that she can ring as another means of communication C) Show her how to work the nurses call light and have her perform a return demonstration D) Tell her that whiles her fears are justified; she should not try to worry. Following a seven –hour surgery mars Newman was first plac ed in the PACU, before being transferred to the intensive care unit. 11. Which nursing intervention should the ICU nurse implement? A) Discourage coughing for the first 24 hrs B) Notify the healthcare provider during roundsC) Determine when mars Newman received her last antibiotic D) Assist mars Newman to gargle w/warm salty water The nurse is completing the shift assessment and notes that Mrs. Newman has white and dark brown patchy areas on her tongue and oral mucosa. 12. Which action should the nurse implement? A) Document this finding and take no action B) Notify the health care provider during rounds C) Determine when Mrs. Newman received her last antibiotic D) Assist Mrs. Newman to gargle with warm water, salty water Because of the cancer mars Newman is at risk for potential complications, such as neck would fistula and carotid arty blowout 13.When anticipating these possible complications, the nurse should place which equipment at miss newness bedside? A) Several packages of s terile 4Ãâ€"4 gauze B) Two non sterile hemostats C) A syringe filled w/calcium glaciate D) The intensive care unit crash cart While assessing mars Newman, the nurse notices that Mrs. Newman’s blood pressure is 92/60 and her pulse is 112. Mrs. Newman reports feeling very tired. 14 What action should the nurse implement first? A) Check mars Newman’s pervious vital signs B) Suction mars Newman tracheotomy C) Administer oxygen via nasal cannula D) Slip a gloved hand under the client’s neckThe nurse also calls the nurses’ station and requests a CBC stat 15 which laboratory result consistent w/blood loss through hemorrhaging A) A hematocrit 40 % B) Erythrocyte sedimentation rate 8 mm/hr C) Red blood cell count 5. 2 million/mm^3 D) Hemoglobin 11. 3g/dl. Mrs. Newman’s gag reflex has returned and she is preparing to eat her first meal. 16 which action should the nurse implement A) Place cold packs around the clients neck prior to eating B) Remind her to pl ace the food on the front of the tongue and flex her head backward to swallow C) Ensure the client has a variety of thin liquids to drink D) Provide Mrs.Newman with soft foods when eating for the first time after surgery 17. What action should the nurse take regarding Mrs. Newman’s concern? A) Explain to the client that this is normal following this type of surgery B) He the client smell a variety of aromas to ensure that the client cannot smell C) Reassure he client that these senses will return after post-operative edema subsides D) Notify the healthcare provider about these findings when making rounds Mrs.Newman has a tracheotomy that has an inner canola. The nurse is performing routine tracheotomy care 18 Which action should the nurse implement first? A) wash the flange of the outer cannula with normal saline B) Pour hydrogen peroxide and normal saline into separate containers C) Cleanse the inner cannula using a small pipe brush D) Remove the tracheotomy dressing with cl ean disposable gloves What should the nurse do before inserting the inner canola? A) Tap or shake inner cannula to remove excess moistureB) Dry the outside of the inner cannula with non sterile gauze C) Remove the outer cannula, reinsert the inner cannula, then place back into stoma D) Clean it w/hydrogen peroxide An unlicensed assistive personnel UAP is assisting the surgical floor nurse w/morning care for mars Newman 20. Which task should the nurse delegate to the UAP? A) Empty the Foley and record the output B) Clean Mrs. Newman’s bathroom C) Change the intravenous bag on the pump D) Perform the routine tracheotomy careThe charge nurse notices that the primary nurse caring for mars Newman is cutting 4Ãâ€"4 gauze to use as a tracheotomy dressing 21. What action should the charge nurse implant? A) Praise the primary nurse for using a cost saving technique B) Instruct the primary nurse not to cut gauze for the tracheotomy dressing C) Take no action since Mrs. Newman is the p rimary nurse’s responsibility D) Determine why commercially prepared dressings aren’t being used The night nurse is preparing to administer the 12:00 midnight dose of gentamicin, an intravenous amino glycoside antibiotic that was started when Mrs.Newman was in the PACU. The nurse notices the empty IV antibiotic bag that was administered during the day shift is labeled ampicilllin. The nurse checks the medication administration record and realizes client does not have a prescription for ampicillin. 22. Which action should the night nurse implement? A) Notify the pharmacist about the medication error B) Complete a medication error report c) Call the day nurse to determine what occurred D) Asses Mrs. Newman’s white blood cell count WBC The next time the nurse enters Mrs. Newman room Mrs.Newman writes on the communication inboard is there something wrong? I heard someone in the hall say something about me receiving the wrong medication? 23. How should the nurse resp ond? A) Please don’t worry about anything. I am sorry you overheard that conversation B) No Mrs. Newman you did not receive the wrong medication C) C) You are concerned that you might have received the wrong medication D) you were supposed to receive gentamcin but you received ampicillin 24. Which intervention should the nurse provide to Mrs. Newman?A) Insert a suction tube into the stoma while applying suction, the remove while twisting the tube B) Take a deep breath, occlude the tracheotomy with urn finger cough and remove your finger C) Insert a small amount of sterile normal saline into the stoma and cough in a normal manner D) Take a deep broth in through the nose, cough and expel the secretions through the tracheostomy The nurse is discussing activities of daily living with Mrs. Newman. Which instruction should the nurse include? A) Caution Mrs. Newman to take only tub baths B) Encourage Mrs.Newman to use aerosol deodorants C) Advise Mrs. Newman not to wear any types of perfumes D) Explain the need to wear a plastic bib when showing 26. Which intervention has highest priority to discharge? A) encourage the client to wear attractive coverings over stoma B) Ensure that Mrs. Newman carries a special identification card C) Stress the importance of returning to as normal a lifestyle as possible D) Discuss the importance of attending support group meetings Mrs. Newman is being discharged home today after five days in the hospital.Mr. Newman stops the nurse in the hallway and says that he is really scared about taking his wife home 27 what is the best response by the nurse? A) Have you discussed your fears w/ur wife B) It sounds like you can’t take care of her C) I know this must be very scary but u and ur wife are strong D) Let’s sit down and discuss what u are worried about Mr. Newman hesitantly shares with the nurse that he is afraid to touch his wife How should the nurse respond? A) Would u like to talk to your wife’s doctor, I c an call him for u?B) You can touch ur wife all u want, u will not hurt her C) You are worried about touching ur wife but she needs ur support right now D) Tell me more about what you mean by touching ur wife A home healthcare nurse has been assigned to care for Mrs. Newman and is making the initial visit. After completing the admission assessment the home healthcare nurse develops a nursing care plan for Mrs. Newman 29 of the nursing diagnosis included in Mrs. Newman’s careplan, which one has the highest priority? A) Deficient of knowledge B) Anticipatory grievingC) Ineffective airway clearance D) Impaired verbal communication Then home healthcare nurse is discussing the plan of care with Mrs. Newman and her husband, she instructs them to keep the rooms humidified at all times. Mr. Newman asks why this is important. 30. Which explanation should the nurse provide? A) It will decrease the amt of foreign material that enters the stoma B) Humidified air decreases the need for ora l fluids C) Humidified air will keep mucous membranes and secretions moist D) The lower airway responsible for humidification was removed during surgery

Tuesday, July 30, 2019

Is3220 Term Paper

1. Preface The contemporary school of thought in service science is currently dominated by the notion of service-centric services (Lusch & Vargo, 2008), whereby it is believed that the end users are the determinant of value of a given service and co-producing a service with the end users would enhance the value of the service. A main assumption made by this school of thought is that all aspect of services, from creation to delivery process, is the domain of the service providers. However, the emergence of disruptive technologies such as the internet, social media, etc has reduced the operational barriers, empowering the end users to become services provider themselves. This empowerment has led to the creation of what is known as user generated services. Such services potentially challenge the complementary notion of service-centric services. Hence, in my term paper, I shall examine how user generated services has affected the service dynamic between the service providers and the end users, using the mobile phone service industry as a backdrop. Firstly, I would define what is exactly is user generated services. Then, I will discuss about user generated services in the mobile phone service industry. Last but not least, I would explore how mobile phone service providers can leverage user generated services, regardless of the service model that the service providers adopt. 2. User generated services 2. 1 Background Contemporary services are usually designed around integration within the scope of provider’s business process. However, advancement in information technology has allowed for the development of solutions that facilitates information exchange and collaboration between individuals. With the increased ease in information exchange and collaboration from multiple sources, the end user now has the access and capability to generate user-generated content (UGC) that suits their needs. But consequently, the rise in user-generated content generation has introduced the demand for more specialized services and processes that uses user-generated contents. This present a limitation for service producers who might lack the ability or will to do so. . 2 Introduction Contrary to the suggestion of its name, user generated services are the result of re-composing existing service into newer form of services by the end users, who might play no part in the original services that comprised the new service. (Zhao & Laga & Crespi, 2009). Hence, instead of having a front stage and back stage controlled by the service p roviders (regardless the end user’s level of participation in the co-creation of the service), end users, not the service providers, serves as the main providers of the services 2. The unique taxonomies of user generated services a) Multi-tier service stage model As mentioned, user generated services generally follows the principles of service composition, where basic services are integrated together to form a unique service offering. Figure 1 show the translation service process of a written article into Russian language and the publication of the Russian language version of the article. However, the final product is the result of engaging two independent services from two different services provider, namely the article writer and translation engine. Thus, user generated service follows a multi-tier services model that grant user the flexibility to choose their intermediaries. An advantage is that user can restructure the final service product without need to meddle the upstream parties’ service stage. Back Stage – Document article process Back Stage – Translation process Article writer Translation Engine Front Stage – Translation Interface Front Stage – Create Article Line of Visibility Translation of Article Back Stage – Translation of article into Russian Line of Interaction Front Stage – Published Translated Article Fig 1. An example of the service configuration of a user generated service b) The presence of a Facilitating platform In user generated services, the user creation process is facilitated through a platform that allows them access to necessary service enablers required to generate customized services. An example would be Yahoo! Pipes, a platform that provides a GUI frontend for creating Web-based apps that aggregates web feeds, web pages. (Nikolaos & Vassilios & Konstantino, 2009). The necessity of such a platform boils down to two reasons. Firstly, it enables and ensures interoperability between the various services. Therefore, the user needs not worry about the compatibility of the services components in the service creation process. Secondly, it reduces the complexity of creating new services for the user, who might have differing technical capabilities, as the implementation details are encapsulated by the platform. C) End user as the ultimate service value creator The main value proposition of user generated is that the end user has the final say in creating the service, instead of being service consumers or co-creator. Correspondingly, the original service providers are reduced to a role of value co-creator or suppliers. This arrangement allows end users to customize the original service, thus enabling the service to serve this group of end users which otherwise the original service would not have served 3. User generated services in the mobile phone service industry For user generated services to exist, the three following conditions must be fulfilled. Firstly, the industry must encourage the generation of UGC. Secondly, service providers should allow end user access to part of their service channel/process. Lastly, the creation process of UGS should be intuitive for the end users. With that, let us look at how user generated service fits into the mobile phone service industry and some future challenges that awaits user generated services in the mobile phone service industry. a) Background of the mobile phone service industry As recently as a decade ago, the service’s proposition of mobile phone service providers was simple: Providing reliable voice communication for its subscribers. However, mobile penetration rate is reaching near 100% in Asia-Pacific region as of 2010. Also, a study done by OVUM Inc predicted that voice services revenues generated in the Asia-Pacific will drop to US$176 billion in 2015, from $US182 billion in 2009. The same study also projected that revenue from mobile data services would increasing to US$133 billion in 2015 from $US84 million in 2009, thereby increasingly become the main revenue driver for mobile phone service provider. John, 2007) Hence, mobile phone service providers around the Asia-Pacific region are scrambling to reposition their service proposition around access to the data content and electronic services (E. g SMS, web content, and internet banking services) to take advantage of the likely growth in mobile data services revenues while arresting the effects of the slowing growth in voice services revenues. In the drive to increase the percentage of revenue from data services, mobile service providers have tried facilitat ing and incorporating various service innovations, one of them being user generated service (UGS). ) The impact of UGS on the service dynamics of the mobile phone service industry The appearance of User generated services in mobile phone service, made possible by the increased convergence of mobile phone and Web 2. 0 technology, are a reflection of the immensely popular collaborative and social networking trends originating from the internet. Hence, USG has redefined the paradigm of some service innovation dimensions in mobile service industry i) Concept/Client Interface Traditional service-oriented service concepts embrace enhancing and extending the value proposition of a service through value co-creation. For example, services like uploading and sharing of mobile phone made video makes it easy for user to share self-generated content, thus positioning the mobile phone as a lifestyle product instead of a mere communication device. However, user generated service allows end users to define their own service proposition and ultimately, their own service. For example, tourists in Singapore could self initialize their own tour in Singapore by relying on a combination of mobile services such as Google maps, Iris, Singapore Guide, etc without relying on the service provided by a tour operator i) Delivery/Technology The traditional service configuration of service-oriented services is mainly shaped by the concept of service composition, whereby the service providers can combine various per-defined service and technology to deliver a single customized service to its user through its channel. An example would be Google mobile, a mobile portal which primarily offer the same range of services of its web counterpart. However, the service configuration and delivery is limited to company resources, strategy and legal issues. Facilitating UGS overcomes the problem as the user now can select the technologies that comprised of the services and chose the mode of service delivery, without the limitation of legality, economy of scale, etc. For example, the iPhone Yahoo! Pipes allows property agents to integrate a classified listing service such as Craiglist mobile and a mapping service such Google map to provide a service where user of iPhone can located an area on the map provided by the service and select the area to see what kind of property is listed for sales in the area and the location of each of the property listed. ) Challenge of implementing and sustaining UGS in the mobile phone service industry Despite the potential UGS can offer to the mobile phone service industry, UGS is still an emerging value proposition that still faces teething issues that could slower its ascent into a viable service model for the mobile phone service industry i) Difficulty in implementing User Generated Services Regardless of any service philosophy, service value creation requires the value creator to have the necessary resources and competencies to create and deliver the values of the services. In the context of the mobile phone service industry, although more service providers have open up access to essential resources like their application programming interface (API), the resources are more geared toward the traditional service providers (E. g Professional mobile application company) as integrating the resource into existing service still requires technical knowledge (E. g Knowledge of Google map Api for an location based web service). Not all end user possesses the knowledge and expertise to customize and integrate the service into their existing services. i) Difficulty in Ensuring Service Quality The end users service providers are at the mercy of the providers of the service components as they do not have actual ownership of the service components that comprised of their customized services. For example, when service components (E. g Google MAP API) are modified at the owner’s (Google) end, mobile location based application which functionalities that depends on Google Map might not be delivered optimally or even be delivered at all as the functionalities might have depend on certain features of the pre-modified Google API. Thus, end user has less control over the service quality of their service unlike their conventional counterparts. 4. How to take advantage of user generated service: From the prospective of existing service provider It is pretty certain that user generated services to be relevant in the mobile phone industry for the foreseen future. Thus, mobile service provider should evaluate their suitability in adopting the user generated services and adapt the model according to their strategy. Below are some suggestions that existing mobile service provider can adopt to take advantage of user generated service to drive their existing and future service offerings. i) Simplify the service generation process for the user As discussed earlier, not all end user possesses the necessary knowledge and expertise to customize and integrate a given service into their existing services. Moreover, it is very difficult to simplify the actual user service generating process as service generating tools (MashMaker) aiming at user is still at its infancy and is not exactly user-centric. Instead leaving it to the user to generate their service, it would be better to simplify the process by facilitating the service creation process. For example, the mobile service provider could provide a list of mobile services and help the customer to mix and match the services together to generate a service that is unique for them ii) Bridging the communication gap between the actual service creator and the end user Currently, mobile service providers engage their end user through indirect communication channel (E. customer relationship management system, user profiling/tracking). Though such arrangements has given service providers valuable information on the end user, the information are often interpreted by the service provider from the service providers’ point of view, thus leading to potential situations where the eventually service value proposition of the service does not match what the end users wants. This misalignment could drive end-users to drop the given service and replace the existing service component with another competing service. To mitigate the possibility of such misalignment, the service should considering sponsoring a common platform where the end user service providers can directly communicate and contribute to the development of the various services that are the composition of the user often customized service while giving the service provider a channel for them to influence the end users. . Conclusion User generated services is certainly an interesting service proposition in the mobile phone service industry as it allows the end users to develop their own customized mobile services and in the process, serving them with the services they have created themselves It solve the problem of certain customer segments not being served as they might have requirements that the service providers cannot fulfil due to real life business constraints. However, the existing way of generating user generated service is too cumbersome and uncertain for it to be the golden standard of service delivery. Nevertheless, the service provider should look beyond just co-creating service values with the end users and instead, look at end user as strategic partner in a ecology that mutually sustain the whole hyper network of service-derived services. 6. References Abdallah Namoune, Usman Wajid, Nikolay Mahendjiev. â€Å"Composition of Interactive Service-based Applications by End Users†. ICSOC/ServiceWave Workshops, Stockholm, Sweden, 2009 Christian S. Jensen, Carmen Ruiz Vicente, Rico Wind, â€Å"User-Generated Content: The Case for Mobile Services,† Computer, vol. 41, no. 12, pp. 116-118, Dec. 2008, John Delaney , â€Å"User-generated content opportunities for wireless operators†, Communicate, Vol 36, 2007. Retrieved from: http://www. huawei. com/file/download. do? f=3056 Nikolaos Loutas, Vassilios Peristeras, Konstantinos A. Tarabanis, â€Å"Rethinking the Semantic Annotation of Services. ICSOC/ServiceWave Workshops, Stockholm, Sweden, 2009 Robert F. Lusch, Stephen L. Vargo, G Wessels, â€Å"Towards a Conceptual Foundation for Service Science: Contributions from Service-Dominant Logic,† IBM Systems Journal, Vol. 47, No. 1, 2008. Wai Kin Victor Chan, Cheng Hsu , â€Å"A Science of Scaling: Service Hyper-Networks†, Service Science, Vol. 1, No. 1, 2009. ZZ. Zhao, N. Laga, N. Crespi, â€Å"A Survey Of User Generated Service†, Intern ational Conference on Network Infrastructure and Digital Content, Beijing, China, 2009.

The history of ligers dates Essay

The history of ligers dates to at least the early 19th century in India. In 1798, Étienne Geoffroy Saint-Hilaire (1772–1844) made a colour plate of the offspring of a lion and a tiger. In 1825, G. B. Whittaker made an engraving of liger cubs born in 1824.[3] The parents and their three liger offspring are also depicted with their trainer in a 19th-century painting in the naà ¯ve style. Two liger cubs born in 1837 were exhibited to King William IV and to his successor Queen Victoria. On 14 December 1900 and on 31 May 1901, Carl Hagenbeck wrote to zoologist James Cossar Ewart with details and photographs of ligers born at the Hagenbeck’s Tierpark in Hamburg in 1897. In Animal Life and the World of Nature (1902–1903), A.H. Bryden described Hagenbeck’s â€Å"lion-tiger† hybrids: It has remained for one of the most enterprising collectors and naturalists of our time, Mr. Carl Hagenbeck, not only to breed, but to bring successfully to a healthy maturity, specimens of this rare alliance between those two great and formidable felidae, the lion and tiger. The illustrations will indicate sufficiently how fortunate Mr. Hagenbeck has been in his efforts to produce these hybrids. The oldest and biggest of the animals shown is a hybrid born on the 11th May, 1897. This fine beast, now more than five years old, equals and even excels in his proportions a well-grown lion, measuring as he does from nose tip to tail 10 ft 2 inches in length, and standing only three inches less than 4 ft at the shoulder. A good big lion will weigh about 400 lb [†¦] the hybrid in question, weighing as it does no less than 467 lb, is certainly the superior of the most well-grown lions, whether wild-bred or born in a menagerie. This animal shows faint striping and mottling, and, in its characteristics, exhibits strong traces of both its parents. It has a somewhat lion-like head, and the tail is more like that of a lion than of a tiger. On the other hand, it has no trace of mane. It is a huge and very powerful beast.[4] In 1935, four ligers from two litters were reared in the Zoological Gardens of Bloemfontein, South Africa. Three of them, a male and two females, were still living in 1953. The male weighed 340 kg (750 lb) and stood a foot and a half (45 cm) taller than a full grown male lion at the shoulder. Although ligers are more commonly found than tigons today, in At Home In The Zoo (1961), Gerald Iles wrote â€Å"For the record I must say that I have never seen a liger, a hybrid obtained by crossing a lion with a tigress. They seem to be even rarer than tigons.† Size and growth The liger is often believed to represent the largest known cat in the world.[1] Males reach a total length of 3 to 3.5 m,[6][7] meaning they are the size of large Siberian tiger males.[8] Imprinted genes may be a factor contributing to huge liger size.[9] These are genes that may or may not be expressed on the parent they are inherited from, and that occasionally play a role in issues of hybrid growth. For example, in some dog breed crosses, genes that are expressed only when maternally-inherited cause the young to grow larger than is typical for either parent breed. This growth is not seen in the paternal breeds, as such genes are normally â€Å"counteracted† by genes inherited from the female of the appropriate breed.[10] Other big cat hybrids can reach similar sizes; the litigon, a rare hybrid of a male lion and a female tiglon, is roughly the same size as the liger, with a male named Cubanacan (at the Alipore Zoo in India) reaching 363 kg (800 lb).[11] The extreme rarity of these second-generation hybrids may make it difficult to ascertain whether they are larger or smaller, on average, than the liger. It is wrongly believed that ligers continue to grow throughout their lives due to hormonal issues.[citation needed] It may be that they simply grow far more during their growing years and take longer to reach their full adult size. Further growth in shoulder height and body length is not seen in ligers over 6 years old, same as both lions and tigers. Male ligers also have the same levels of testosterone on average as an adult male lion, yet areazoospermic in accordance with Haldane’s rule. In addition, female ligers may also attain great size, weighing approximately 320 kg (705 lb) and reaching 3.05 m (10 ft) long on average, and are often fertile. In contrast,pumapards (hybrids between pumas and leopards) tend to exhibit dwarfism. Hercules and Sinbad[ Jungle Island, an interactive animal theme park in Miami, is home to a liger named Hercules, the largest non-obese liger, who is recognised by the Guinness Book of World Records as the largest living cat on Earth, weighing over 410 kg (904 lb).[12] Hercules was featured on the Today Show, Good Morning America, Anderson Cooper 360, Inside Edition and in a Maxim article in 2005, when he was only three years old and already weighed 408.25 kg (900 lb). Hercules is healthy and is expected to live a long life. The cat’s breeding is said to have been a complete accident. Sinbad, another liger, was shown on the National Geographic Channel. Sinbad was reportedly similar in weight to Hercules. Longevity[Shasta, a ligress (female liger) was born at the Hogle Zoo in Salt Lake City on 14 May 1948 and died in 1972 at age 24.[citation needed] Valley of the Kings animal sanctuary in Wisconsin had a male liger named Nook who weighed around 550 kg (1,213 lb), and died in 2007, at 21 years old. Hobbs, a male liger at the Sierra Safari Zoo in Reno, Nevada, lived to almost 15 years of age before succumbing to liver failure and weighed in at 410 kilograms (900 lb). Fertility The fertility of hybrid big cat females is well documented across a number of different hybrids. This is in accordance with Haldane’s rule: in hybrids of animals whose sex is determined by sex chromosomes, if one sex is absent, rare or sterile, it is the heterogametic sex (the one with two different sex chromosomes e.g. X and Y). According to Wild Cats of the World (1975) by C. A. W. Guggisberg, ligers and tigons were long thought to be sterile: in 1943, a fifteen-year-old hybrid between a lion and an ‘Island’ tiger was successfully mated with a lion at the Munich Hellabrunn Zoo. The female cub, though of delicate health, was raised to adulthood.[13] In September 2012, the Russian Novosibirsk Zoo announced the birth of a â€Å"liliger†, which is the offspring of a liger mother and a lion father. The cub was named Kiara. Appearance Colour plate of the offspring of a lion and tiger, Étienne Geoffroy Saint-Hilaire Ligers have a tiger-like striped pattern that is very faint upon a lionesque tawny background. In addition they may inherit rosettes from the lion parent (lion cubs are rosetted and some adults retain faint markings). These markings may be black, dark brown or sandy. The background colour may be correspondingly tawny, sandy or golden. In common with tigers, their underparts are pale. The actual pattern and colour depends on which subspecies the parents were and on how the genes interact in the offspring. White tigers have been crossed with lions to produce â€Å"white† (actually pale golden) ligers. In theory, white tigers could be crossed with white lions to produce white, very pale or even stripeless ligers. There are no black ligers. Very few melanistic tigers have ever been recorded, most being due to excessive markings (pseudo-melanism or abundism) rather than true melanism; no reports of black lions have ever been substantiated. As blue or Maltese Tigers probably no longer exist, grey or blue ligers are exceedingly improbable. It is not impossible for a liger to be white, but it is very rare Ligers in the wild: It is unlikely a mating of this type would ever occur in the wild, for a number of reasons. Firstly, lion and tiger habitats do not meet, though you’ll often hear claims that they overlap in one area of the world, this being the Gir National Park and Lion Sanctuary in Bangladesh. The truth is tigers are not found within 100 miles of Gir Forest. Within the sanctuary itself is the only lion subspecies found outside of Africa. This is the very rare Asiatic lion (only a few hundred remain and they face extinction). The lion rules in Gir Forest and no tigers are found there. Tigers are not found in Africa, and are restricted to Asia. Though it is conceivable that a tiger may cross into lion territory, both species are so rare that it is highly unlikely the two would ever meet. On top of this, the Gir Forest is surrounded by farming and agriculture. The lions within the sanctuary are effectively captive in the wild and tigers do not like to cross large stretches of open ground. What would happen if the two species did meet? The very solitary tiger would be little inclined to join in with the more social pride of lions. Apart from periods of mating, tigers even go out of their way to avoid their own species. The Tigon is a hybrid cross between a male Tiger and a female Lion WHY ARE LIGERS SO MUCH BIGGER THAN TIGONS? The large size of the liger and small size of the tigon is due to â€Å"genomic imprinting† – the unequal expression of genes depending on parent of origin i.e. whether certain growth genes are inherited from the male or the female. This is linked to the species’ lifestyle and breeding strategy – whether the female mates with only one male while in heat (non-competitive) or whether she mates with many males (competitive). This results in â€Å"growth dysplasia†. The following explanation is greatly simplified as a number of other genes are contributed unequally by the male and female parents and also affect the general health and longevity of the offspring. Lions live in prides led by several adult males. The lionesses mate with each of those males. Each male wants his offspring to be the ones to survive, but the female’s genes want multiple offspring to survive. The father’s genes promote size of the offspring to ensure that his offspring out-compete any other offspring in the womb at the same time. Genes from the female inhibit growth to ensure that as many offspring as possible survive and that they all have an equal chance. By contrast, tigers are largely solitary and a female on heat normally only mates with one male. There is no competition for space in the womb so the male tiger’s genes do not need to promote larger offspring. There is therefore no need for the female to compensate, so the offspring’s growth goes uninhibited. When a male lion mates with a tigress, his genes promote large offspring because lions are adapted to a competitive breeding strategy. The tigress does not inhibit the growth because she is adapted to a non-competitive strategy. Therefore the offspring (liger) grows larger and stronger than either parent because the effects do not cancel each other out. Ligers take several years to reach full adult size, but it is a myth that ligers never stop growing. When a male tiger mates with a lioness, his genes are not promoting large growth of the offspring because he is adapted to a non-competitive breeding strategy. However, the lioness is adapted to a competitive strategy and her genes inhibit the growth of the offspring. This uneven match means that the offspring (tigons) are often smaller and less robust than either parent. Growth dysplasia has other effects: the size of the placenta may be affected (causing miscarriage), the embryo may be aborted at an early stage due to abnormal growth, the cub may be stillborn or may only survive a few days. In some rodents, mating Species A males with Species B females produces offspring half normal size, but mating Species B males with Species A females cause the offspring to be aborted as they try to grow to several times the normal size. Because of the impossibility of a gene being inherited from only females, there is a competing hypothesis. This hypothesis (allthough not tested) is that the Lion’s sperm is damaged somehow during fertilization and that a growth inhibiting gene is typically destroyed. It is impossible for a gene carried on a chromosomes to be passed along only from the mother. The reason for this is there are no chromosomes that only a female can have. Female Tigons and Female Ligers both possess a tiger X chromosme and a lion X chromosome, yet only the female Ligers will grow large, this means something must happen to either alter the genes or that the cause of the growth dysplasia lies at least partially outside of the genes. Another possible hypothesis is that the growth dysplasia results from the interaction between lion genes and tiger womb enviroment. The tiger produces a hormone that sets the fetal Liger on a pattern of growth that does not end throughout his life. The hormonal hypothesis is that the cause of the male Liger’s growth is his sterility – essentially, the male liger remains in the pre-pubertal growth phase. This is not upheld by behavioural evidence – despite being sterile, many male ligers become sexually mature and mate with females. In addition, female ligers also attain great size but are fertile.

Monday, July 29, 2019

Reccommendation memo Essay Example | Topics and Well Written Essays - 250 words

Reccommendation memo - Essay Example As far as financing is concerned, Wal-Mart once again showed its supremacy by making financing of at least $8 million every year. The other competitors however hardly managed to obtain $4 million on yearly basis. In terms of earning profits, Wal-Mart has performed substantially well and increased its earnings from $12 million to around $16 million in five years time. None of the other companies managed to cross even $4 million in any of the five years. Operating outflows of Wal-Mart are also quite unmatchable due to the larger size such that it remained between $10 million and $16 million in five year times. Target, another industry competitor, achieved a level of $4 million thrice in five years. However, other competitors remained far behind and hardly managed to reach $2 million in any of the five years. Wal-Mart also remained successful in reflecting the best Return on equity as compared to its competitors such that its average ROE remained around 21.5%. However, the other four co mpetitors barely managed to earn ROE of around 17% on average basis. Lastly, except the yearly sales of Wal-Mart which remained around $400 million on average basis, the other four industry participants did not even reach to the sales level of around $100 million in any of the year. It is recommended that the performance of Wal-Mart has remained substantially well as compared to other four companies. The other four companies however have remained similar in their performance in the last five

Sunday, July 28, 2019

Money Management Finance and Accounting Assignment

Money Management Finance and Accounting - Assignment Example Management of Money: Discussion on the Case: As the case represents, the individual concerned has retired and he has $500,000 saved with him that he can use either for investment or for any other purpose. Either a yearly pension from a life insurance company may prove to be beneficial for him or the individual may manage the wealth himself by investing in a bank. The purpose here is to determine which approach would be more beneficial for the individual after his retirement. Case 1: Yearly Pension from Life Insurance Company: In case of life insurance companies, depending on the age and life expectancy of the individual the insurance company may decide on the pension amount that can be paid to the individual (A Basic Lesson in Immediate Annuities). It is assumed that the individual is a male and his age is 60 years. He has an amount of $50,000 to invest. If he invests the money in a life insurance company, several options of income payment may be available to him. The highest amount that he may receive is $8,455 on a monthly basis on the plan of â€Å"Guarantee Income for a 5-Year Period Certain Only† (Estimated Quotes for a Single Life Annuity). ... Case 2: Managing Own’s Wealth: The individual might even decide to plan and manage his own wealth. If he wants to deposit the amount in a bank and withdraw a certain amount every year, he would have an interest payment for himself that he will receive on the amount he has deposited. A total savings of $500,000 might expect to receive an amount of $25,000 in a year from the portfolio of income. This amount may be received if the annual rates of returns are 7 percent or 8 percent and the individual withdraws, say 5 percent on the amount. Withdrawing an amount of more than 5 percent may create troubles for the principal amount and increase risk for the individual (Generating Income from a $500,000 Portfolio). Thus if an amount of $25,000 can be received through bank investment, then monthly returns are expected to be $2083. Comparison: If the two cases are compared it can be realized that the amount that the individual may receive from a life insurance company is much higher than the amount received from a bank investment. Even the minimum amount that a life insurance company can provide the individual with is $2520 which is more than the amount of $2083 that can be expected from a bank investment on a monthly basis. In addition to the higher amounts that a life insurance company may pay off to its customer, it also provides facilities for the family members of the individual depending on the plan that the individual selects for his investment. Thus, even after his death, his family members may receive the deserved amounts that might prove to be beneficial for their wellbeing. Thus comparing both the investment options available to the individual

Saturday, July 27, 2019

Edgar Allan Poe Research Paper Example | Topics and Well Written Essays - 2750 words

Edgar Allan Poe - Research Paper Example In the year 1827, two of his works ‘Oh! That my young life were a lasting dream’ and ‘Tamerlane and the Other poems’ got published. His second book ‘Al Aaraaf, Tamerlane and Minor Poems’ was published in 1829. In the year 1831 ‘Poems’ was published. He started his career as a critic and author after being appointed as an editor in 1835. As an editor his other works were ‘Burton’s Gentleman’s Magazine’ (1839-1840), ‘Graham’s Magazine’ (1841-1842), ‘Evening Mirror’ and ‘Godey’s Lady’s Book’. Poe had an obsession with madness, horror and decay that was a result of his phobia of death, and this fear loomed in most of his short stories and poems. ‘The Masque of the Red Death’, an allegory written by Edgar Allan Poe, was published in 1942. Edgar Allan Poe was known for his obsession with the elements of madness, horror, decay and death, esp ecially in his Gothic fiction. ‘The Masque of the Red Death’ is one such example. Death has been personified as Red Death, ‘red’ to symbolize blood, the ‘Avatar’ of ‘Death’. The tale depicts and conveys the message that death is an inevitable occurrence of life. No matter how much one tries to evade it, the messenger of death will surely get to the person and thus reign over all. Yet people like Prince Prospero may often take it in their ego to evade death with all possible means in their power (Poe). Yet, the hand of death is long enough to reach all mortals. A significant side of the story is the depiction of the attitudes of human being towards death and the ultimate consequence. Edgar Allan Poe’s work incorporates a blend of myth, allegory or fairy tale and themes of death, sin, madness and the doomsday. A strong vivid imagery and a haunting narrative voice – all lead to a clear insight into human nature and their condition. The imageries used here have also overlapped with his other works. The Red Death is used to personify death and here it may represent a kind of epidemic that had taken over the entire country. The ebony clock has a similar effect as the ebony bird of his poem ‘Raven’, both signifying the prophet of death – â€Å"thing of evil! - prophet still, if bird or devil!† like any allegory the story has a symbolic meaning besides the literature version (Harmon, 436). The seven rooms with different colors may signify the stages of life, the last room, being black in color symbolize death. This story can thus be read as the broader philosophical concept of life and death and the powerlessness of human beings to escape death. The courage of the prince indicates his pride and courage to fight death. He faces death upfront while Death enters the castle like a thief and quietly engulfs everyone who dared to try to escape the grasp of Red Death. The luxury and revel, the light hearted entertainments are all but a matter of moment and illusion– the only lasting reality is death. The story also demonstrates how death can prove all the arrogant people who want to escape it to be wrong. Prospero’s belief of using his wealth to keep away the plague turned out to be wrong. All the material pleasures of life shall turn into dry sand with the coming of death. Here the prince’s attitude symbolizes that of the unwise people who thinks riches can be used for self defense and can even buy death as they can buy all worldly things. They want to use money as a means of self defense as well as self indulgence. Ironically the

Friday, July 26, 2019

Human resources Research Paper Example | Topics and Well Written Essays - 1000 words

Human resources - Research Paper Example Some of the roles in this team include HR Director, HR Manager, and HR Coordinator. Large and complex organizations may have even more people taking care of distinct areas of HR Management, whereas small enterprises may delegate all responsibilities to one or two people that comprise the whole HR department. Owing to the multiplicity and diversity of job responsibilities assigned to the HR personnel, many organizations find it hard to establish what academic qualification should be made compulsory for hiring HR personnel. Nevertheless, â€Å"the qualification expected from an HR manager is an MBA with specialization in HR/Personnel Management or a masters degree from TISS or XLRI. For others in the HR department, a basic degree and a certification issued by the NIPM, or by a recognized university are the desirable requirements† (Aswathappa 14). An HR Manager on average gets paid $60,153 per year in the US (â€Å"Human Resources†). Generally, the job responsibilities of an individual working in the HR department include recruitment of new employees, administration, assigning the employees tasks, and getting them equipped with the required resources. Each of these responsibilities are discussed in detail as follows: Recruitment is one of the most critical stages in any organization since recruitment is the process through which people are hired into the organization as employees. In order to select the right team of professionals, it is imperative that the recruitment process is crafted in such a way that right people are appointed in right positions. There are different ways to recruit employees that vary depending upon the demand of the position. Some of the ways of recruitment include online interviews, and face-to-face interviews. Online interviews are a good substitute for face-to-face interviews and are employed as a way of recruitment particularly when the candidates are located far and it is not feasible to have

Thursday, July 25, 2019

Discuss the reality of using problem solving and solution generating Essay

Discuss the reality of using problem solving and solution generating tools in a real consultancy case - Essay Example The third step is the evaluation and the selection of the best alternative, based on how much the option will solve the issue without causing negative results; that all parties accept the option taken; that the alternative is practical, and that the option is fit for the constraints of the problem. The fourth steps are implementing and follow up on the solution, which is done through campaigning for the acceptance of the option among involved parties and involving their efforts. This tool is more effective as compared to others like random idea generation, provocative idea formulation, challenge idea formulation and concept fan formulation and disproving. This paper is a discussion of the reality of problem solving and solution generating tools, through a real case of consultancy (Old 1995). The consultancy case used for this study is that of Veema Enterprises, whose management and stakeholders were interested in capturing an outside perspective – in the area of identifying the opportunities available to the venture, for improvement in the area of management. The venture sought to diagnose areas of improvement, define fresh perspectives – while remaining appropriate to regulated service, as well as place focus on managerial practices and areas of proficiency, which can be controlled for long-term success. This can be supported by the theory of constraints, developed by Goldratt Eliyahu in 1984, covering a set of insights and holistic processes – all founded on systems approach to mange and simplify the complexity of the enterprise, by focusing on the logical and physical limiting areas. For the enterprise, these constraint areas include leadership inefficiencies, strategic planning deficiencies, decreasing quality and the lack of innovation. This pr ocess can also be explained using Kurt Lewin’s theory of 1951, which explains behavior as the product of a dynamic balance of opposing forces. The theorist talks

Wednesday, July 24, 2019

Real vs Digital Essay Example | Topics and Well Written Essays - 250 words

Real vs Digital - Essay Example computer and internet connection. Also, while you are enjoying the online gaming platform, you are placed into a framework wherein you are virtually going on a date. We cover the information explosion and how it has affected the structure of many social engagements like meeting and dating. This relates significantly to our discussion in class because it talks about the journey of information technology and how it is gradually changing some aspects of our lives. In the same manner, this relates to informatics and computer science because it reveals innovative development in the field that influences cultural structures like dating, meeting, doing business, etc. (Hitsch et al. 10). Three questions arise: (1) how online dating affects human interaction, particularly when it comes to finding a partner? (2) What are the implications of this new dating platform in the future: how would it affect our cultural structure in general? (3) What are the psychological risks involved in using WoW as alternative for dating in

Strategic Management 2 Essay Example | Topics and Well Written Essays - 3000 words

Strategic Management 2 - Essay Example In this regard, effective strategic leadership has become an extremely important factor for companies for attaining competitive advantage (Pettigrew, 2012). A lot of factors can initiate the process of internationalisation of firms during the period of globalisation. These factors can either be traditional factors that include objectives like, resource and market seeking or emerging objectives like, attaining economies of scale and competitive positioning (Sminia and De Rond, 2012). This essay discusses the case of British Petroleum, a London-based oil and natural gas company and evaluates various aspects of strategic management of the company so as to identify the competitive advantage and elaborate on leadership of the company. The purpose of this paper is to shed light on the organisation’s current competitive advantages based on resource and capabilities view and dynamic possibilities. The international expansion of the company and its strategies in doing so has also been described. Leadership issues of the organisation during the period of international expansion have also been discussed in the final section. British Petroleum is one of the largest oil and natural gas companies of the world. The company has its headquarters in London and was incorporated on 1909. The BP group of companies works under BP Plc. The basic business model of British Petroleum comprises two main parts (BP plc, 2011). The first part is exploring and locating the natural gas and oils; and the second part is extraction of hydrocarbons making them commercially available. The company has a wide business model, which encompasses extraction, production and retail services of petrochemical products around the world. The petrochemical products produced by the company are used in production of a wide range of products, which are used in everyday life (BP plc, 2013). The exploration and production departments

Tuesday, July 23, 2019

Influence of Religion at Literature and Art review

Influence of Religion at and Art - Literature review Example This paper will begin with the statement that the twentieth century was the most discrepant period in the history of mankind. On the one hand that was the epoch of scientific, technical and intellectual progress and great hitches in all spheres of human activity. On the other, the 20th century was the age of deep spiritual crisis. Every person in the world revised old established ideas about good and evil. Thomas Mann called it the age of endless wars and revolutions (Jasper, 1992, p. 54). It assumed collisions not only between countries and classes but also in human minds and souls. The radical experience of the World War I and World War II was described by American writers who came to fight young, full of hopes and returned from the war with destroyed dreams and believes without finding the new ones. Such writers created their own literature - the literature of "Lost Generation". In their works Ernest Hemingway, William Folkner and others depicted disregarded surroundings, estrange ment and deep pessimism caused by cruel reality. Ernest Hemingway wrote " when men fight for the freedom of their country against a foreign invasion, and when these men are your friends, some few friends and some of long standing, you know how they were attached and how they fought, you learn, watching them live and fight and die, you learn that there are worse things than war. Cowardice is worse, treachery is worse, and simple selfishness is worse" (Brian, 1988, p. 73). People, who got the scar of the war did not believe in God any more. The crisis of the twentieth century was one of the social phenomena that had to be acknowledged before it was dealt with. The way out of the crisis was hard and long because the main reason of it was the changing of the attitude towards the Christian dogmas. Outstanding German philosopher Fridrich Nitse wrote: "Concept of God still was the strongest objection against existing We disclaim God. We deny the responsibility in God and due to this we'll save the world for the first time" (Pelican, 1991, p. 83). Another philosopher Thomas Mann said that Christianity was one of the bases on which our civilization lied. In such turbulent times every person who was spiritually free and not only swimming with the stream of the age had an urgent necessity to reappraise his values, to realize them again and stand up for them. The 20th century strictly criticised Christian morality. Nevertheless that criticism touched only the superficial ideas but the deep Christian dogmas that were found once stayed virginal (Jasper, 1992, p. 69). For the last two thousand years you could hardly find a literary work where the theme of religion, faith or God was omitted. These themes were omnipresent. Their variations - Christian images, symbols, allusions, associations, philosophical reflections on God were found in works of different writers, different genres and styles. American literature of the 20th century was not an exception. Till the time Kurt Vo nnegut's usage of Christian motives were not thoroughly examined. The critics had an opinion that Christianity and Vonnegut were almost incompatible. They supposed the writer's attitude towards Christianity was not serious but even negative. Only the last researches of his works showed the role and meaning of Christianity in author's world outlook. Religion played an important role in Vonnegut's artistic world and the Bible was the main element of the author's thinking. Vonnegut emphasised the positive beginning of Christianity, its appeal to universal love. Nevertheless Vonnegut thought that the Christian religion couldn't prevent shocking crimes of the 20th century. J. Lundguist wrote a book dedicated to Kurt Vonnegut and his works. In it he analysed Vonnegut's manner of writing and pointed out "the cosmic irony" as the main feature of writer's method. He also touched the theme of Christian religion especially while analysing the Vonnegut's novel "Slaughter-House Five" (1969). Lun dguist compared the main hero of the novel with Jesus Christ.

Monday, July 22, 2019

War on Terrorism Essay Example for Free

War on Terrorism Essay During the year 1998, a group of American ‘neoconservatives’ openly wrote to President Clinton to attack Iraq. This group was known as the Committee for Peace and Security in the Gulf. They were in real sense calling for the Americans to form part of a proxy army of attack for Israel. The signatories included Paul Wolforitz, Richard Perle and Eliot Abrams among others. Of course Clinton resisted these ventures and instead indicated support for the Iraq Liberation Act providing $ 97 million for training and equipping Iraqi exile groups. Come 2000, this particular group went ahead to organize the think tank the Project for the New American Century con cofounded by the likes of Dick Cheney, Donald Rumsfeld, Lewis Libby and Paul Wolforwitz (Flum, 2008). A Break with Previous United States Foreign and Defense Policy During this time, three think tanks which were pro-Israel were championing similar ideas: The Jewish Institute for national Security Affairs (JINSA), The Middle East Media Research Institute (MEMRI), as well as the Center for Security Policy (CSP). These neoconservatives formed an integral part of the Bush 2000 presidential campaign as foreign-policy advisors (Flum, 2008). At this point in time, these powerful personalities easily influenced Bush with the ideological obsessions they had. What can be said here is that the Operation Iraqi Freedom, a description given to the invasion and occupation of Iraq by the U. S and affiliates represents a new dimension with regards to post-conflict humanitarian action. This new approach integrates security, humanitarian response, reconstruction as well as governance under the umbrella of the Department of Defense. The war on terrorism represents a break with previous United States foreign and defense policy to the extent that the UN agencies and non governmental organizations which conventionally had coordinated and implemented humanitarian assistance as well as post conflict reconstruction activities, are now relegated only to playing supportive roles within efforts supervised from the Pentagon (Charny, 2003). Again the war on terrorism represents a break with previous United States foreign and defense policy to the extent that the Iraq war is perceived as an expression of a new national security policy of pre-emptive self defense by the Bush administration (Charny, 2003). In spite of this new perception, it has there seems to be no public discussion of the long-term implications of the new approach to humanitarian assistance and post-conflict reconstruction the administration has embraced. Still, this break with the previous U. S foreign and defense policy is evident in the way humanitarian assistance has been militarized, the military given political, diplomatic and humanitarian responsibilities as well as the fact that donor government and independent agency contributions have been minimized. It has been argued that it is unclear the extent to which these new approaches can be considered new U. S doctrines more so regarding humanitarian emergencies. A discussion concerning NGO’s with Joseph Collins, the assistant secretary of Defense and the person charged with running the pentagon’s Stability Office clearly suggests that at least in the meantime, the Department of Defense will lead humanitarian operations in emergencies surrounding the military. According to Dr. Collins, the taking over of the humanitarian and reconstruction activities in the post-conflict Iraq by the Pentagon is a reflection of the assessment of lessons learned from post-conflict reconstruction efforts (Charny, 2003). In the opinion of Dr Collins, there lacked a clear overall authority who could coordinate the diverse players like the government leaders, UN agencies and personnel, as well as the peacekeeping forces among others, thereby plaguing the efforts in Kosovo and Afghanistan. Following those events, the conclusion of the Pentagon was that there was a need for a single unit to command all the aspects of the post-conflict response, thus placing these activities in the hands of the Department of Defense (Charny, 2003). This is a further illustration of the way the war on terrorism represents a break with previous United States foreign and defense policy. Conclusion In the final analysis, all these attempts represent a radical shift in the multicultural character of post-conflict endeavors over the past years in areas like Cambodia, East Timor, Afghanistan and the Balkans. It therefore means that the war on terrorism represents a break with previous United States foreign and defense policy. It should be noted however that this approach has not yielded positive results in Iraq. The Pentagon’s Office of Reconstruction and Humanitarian Assistance (ORHA) did not include the UN and the NGO’s during its pre-war planning. The overall implication for this has been the ORHA’s slowness in restoring basic services as well as its failure to establish a legitimate Iraqi authority to locally run the state (Charny, 2003). References Charny, J. R. (2003). The United States in Iraq: An Experiment With Unilateral Humanitarianism. Institute for Policy Studies, (IPS); Foreign Policy in Focus, Washington DC. Retrieved December 29, 2008 from http://www. fpif. org/commentary/2003/0306dodreconst_body. html Flum, P. (2008). The Origins of the Iraqi War: The ‘Neoconservative’ Agenda for Middle East Conflict. Linpage Place, St. Louis. Retrieved December 29, 2008 from http://www. goalsforamericans. org/2004/07/07/the-origins-of-the-iraq-war-the-neoconservative-agenda-for-middle-east-conflict/

Sunday, July 21, 2019

Strategic Management Industry Structures And Dynamics Business Strategy Essay

Strategic Management Industry Structures And Dynamics Business Strategy Essay Introduction: Dell Company was founded in 1984 by Michael Dell. It is the worlds largest direct-sale computer vendor; Dell Inc. is now also the leading seller of computer systems in the world, capturing a global market share of more than 15 percent. Dell markets desktop personal computers, notebook computers, network servers, workstations, handheld computers, monitors, printers, high-end storage products, and a variety of computer peripherals and software. In this part I will use Porters Five Forces to analysis Dells great success in the industry. Force 1: The Degree of Rivalry. The PC industry consists of a number of companies; hence the threat from industry competitors is high. Due to the product being highly standardized and shifting costs between brands is low, there is fierce competition which leads to lower margins and profitability in the market. The PC industry can be described as a high competitive industry. For Dell the main competitors are IBM, Apple, HP, TOSHIBA, Gateway etc. Dell uses several strategies to reduce the competitive rivalry between existing players. Firstly Dell differentiated its sales from other competitors. Dell used the direct sales strategy since 1984. To sell PCs directly to consumers, by passing retail stores and system integrators and offering limited customer support but dramatically lower prices. For years, that direct, low-cost sales model worked perfectly. It allowed Dell to make high margins while selling computer gear for less than its rivals. As a result, it now holds a leading 17.9% share of the world PC market and has grown much faster than competitors Hewlett-Packard and IBM. With thousands of phone and fax orders daily, $5 million in daily Internet sales, and daily contacts between the field sales force and customers of all types, the company kept its finger on the market pulse, quickly detecting shifts in sales trends and getting prompt feedback on any problems with its products. If the company got more than a few similar complaints, the information was relayed immediately to design engineers. When design flaws or components defects were found, the factory was notified and the problem corrected within a matter of days. Management believed Dells ability to respond quickly gave it a significant advantage over rivals, particularly over PC makers in Asia, which made large production runs and sold standardized products through retail channels. Dell saw its direct sales approach as a totally customer-driven system that allowed quick transitions to new generations of components and PC models. i Secondly Dell provided good customer service to compete with its rivals. In 1986 the company began providing a guarantee of free on-site service for a year with most of its PCs after users complained about having to ship their PCs back to Austin for repairs. Dell contracted with local service providers to handle customer requests for repairs; on-site service was provided on a next-day basis. Dell also provided its customers with technical support via a toll-free number, fax, and e-mail. Dell received close to 40,000 e-mail messages monthly requesting service and support and had 25 technicians to process the requests. iiBundled service policies were a major selling point for winning corporate accounts. If a customer preferred to work with his or her own service provider, Dell gave that provider the training and spare parts needed to service the customers equipment. Force 2: The Threat of new Entry. Firstly, Dell created a brand image to reduce the threat of new entries by advertising. Dell was the first computer company to use comparative ads. Its advertisements have appeared in several types of media including television, the Internet, magazines, catalogs and newspapers. Secondly, Dell cuts its price or offering free bonus products in the effect to maintain its market share. In 2006, Dell cut its price in an effort to maintain its 19.2% market share. However, this also cut profit-margins by more than half, from 8.7 to 4.3 percent. To maintain the strategy Dell continuing to accept the online and telephone purchase. The brand loyalty and the low price built up a barrier of entry for the new companies. Force 3: The Threat of Substitutes. Other devices like PDA, handheld electronics etc. are now coming out with features similar to PCs. The mobilebility is the key factor of the competition. Dell generate a smaller size laptop called mini which only has a 10.1 inch screen and only sells at the price under  £200 which is even lower than some of the handheld electronics. With the efficiency of mobile and the same function, for example Wi-Fi and Bluetooth, Dell protects its market share against those substitutes. Force 4: Bargaining Power of Customers. Dell built up its brand loyalty to reduce the bargaining power of customers. First, Dell had its own system and strategy to manage the relationship with customers. Since Dell use the direct sale strategy, customers can buy Dells products from the website or ordered by phone or fax. The customers then can personalize their computer by choosing the configuration of the computer (e.g. RAM, processors, and hard-disk capacity). On the Dells website from which people can directly choose, buy and give feedback, it divided the customers into four major groups home users, small medium business, public sector and large enterprise. Dell then treats different groups differently by offering the special service they need from different groups. For instance, Dell provides special solutions and services for higher education. Such as data consolidation and management, HPC (high performance computing environments), wireless solution, connected classroom etc. Because of its direct sale strategy, Dell can easily track the service for any individual buyers. All the buyer information will be stored in its system; dell can differentiate customers and send relevant product information and services to different customers. These special strategies in selling upgrade its brand image among customers. Second, Dell uses the advertisements to help building up its brand image. On the website, TV, newspaper, high street, people can easily find dells advertising. Those can not only increase dells market activity but also increase its brand pride. Force 5: Reducing the Bargaining Power of Suppliers. Dell has a special understanding on the SCM (supply chain management). Dells strategy is to limit the amount of supplier but pick up some outstanding supplier all over the world. Each supplier has a very close relationship with Dell in long-term. Dell uses its huge globe market to share its business with its entire suppliers. For instance, Dell built a assemble factory in Malaysia, its supplier from Ireland soon built a factory in there as well in order to gain a geographic efficiency. Dell had its assemble factories all over the world which relatively close to its suppliers. This will save a lot of transport costs. The double-win strategy makes the supply chain works well. With the double-win strategy and constant relationship, Dell will be able to ask lower price from the suppliers and reduce the bargaining power from them. Market part: Segmentation Introduction: Michael Dell emphasized the significant status of customers to the companys business by stating Finding ways to get close to your customers is critical to your success. Since different people would have different need from the computer, Dell divided its customers into several segments by discovering special needs from each segment. In the year 1994, the customer group was only divided by two primary customer and normal customer. In that year the assets of Dell is 3.5billion USD. In July 1996 Dell launched its online website www.dell.com. On the website primary client are divided into three segments which are large company, medium company and government education. Customers can easily choose and buy the products directly with advices and helps from dell.com. The assets of Dell rocketed up to 7.8 billion USD in that year. However in 1997, Dell continued differentiating its customer for more segments. Government education segment was divided to State Local Government, Federal Government and education. Small company and home users were also been created as individual segments. The net revenue of Dell was 12 billion in that year. On todays Dells website, people will be able to follow the tips and choose a suitable computer in few minutes. Whats more, customers can personalize their chosen computer by changing the configuration of the computer (e.g. color, RAM, processors, and hard-disk capacity). With this direct sale through different segments, Dell can start to assemble the computer once the transaction has been made. The inventory can then be limited as low as zero. Not like Dells competitors, Dell does not need many warehouses all over the world which will save a lot of costs for the company. Although on todays Dell.com, customers are divided into a lot segments. However, literally customers are differentiated into two segments; Relationship customers in opposing Transaction customers. Although Dell intends to build and maintain a good relationship with all customers, it also becomes clear, that the company would regard some customers more relationship worthy than others, by analyzing customer value. The relationship customers are mainly large enterprise and government etc. which occupied 40% of Dells entire customer. Transaction customers are small business and home users which have percentage of 30 among customers. The remaining 30 percentage customer is regarded as a mixed customer. The advantage for dividing customers in different segment is that the company would be able to analysis how it can encourage the customers to buy its product. For individual users or small business price is the priority. Those customers are regarded as more price insensitive. So for home and small business users the price is slightly lower than its competitors e.g. HP, Toshiba and Sony. For bigger customers such as the government or enterprise, they consider more than the price but consequent services and supports. Take large enterprise for instance, Dell supports a lots of specific services and solutions for running the business. Like Infrastructure Consulting service which is basically a plan for simplifying IT infrastructure, helping reduce operating costs while freeing up resources for new business initiatives.iii Also, Dell runs a program called Dell business Creditiv. This is the same as a loan offered by Dell, but with no interest rate and anytime to pay off the balance. Business without enough cash flow would like to take that program. One of the Dells competitors is IBM, it has a clearly customer segmentation but different from Dell. IBM is more focusing on Business and Industry market. In a simply word it is even more focusing on the Big customers. Similar as Dell did for big client, but even did more specific for the segmentation. For Dell there is no segment for industries like Aerospace, Chemicals and petroleum. More segmentation on large customers also brings more services and solutions for all kinds of industries. One of IBMs famous solutions is offering the security management for Wimbledonv. It provided the security solution for players, staff, media and spectators around the world. Conclusion: Dells market share was No.2 in 2009, IBM was far behind. But since Dells customer groups is much bigger than IBMs. In 2006 IBM sold its PC department to Lenovo, Lenovo used IBMs brand to product and sell IBMs ThinkPad series. It is very difficult to compare which segmentation is better. But for the large business users, IBM is a very strong competitor against Dell, Its high performance computer and advanced technical solutions and services makes IBM the biggest company for larger business and industries. i scribd.com Dell operation ii McGraw Hill Dell Computer Corporation mhhe.com/business/management/thompson/11e/case/dell5.html iii Dell.com Large Enterprise service iv Dell.com business credit v IBM.com Wimbledon case study

Difference between ETAR and CCC in Calculation of Dose

Difference between ETAR and CCC in Calculation of Dose Abstract Aims: According to the limitations of TPSs dose calculation algorithms, it is important to verify their calculations and to find the amount of differences of their results with actual delivered dose in the patient body for all of radiation situations to find the best and accurate algorithm to choose for use in routine radiation treatment planning. Materials and Methods: After validation of simulated Linacs head in water phantom as a homogeneous medium, the modeled head verified in Rando phantom as a heterogeneous medium for pituitary gland area irradiation. In the second part, ETAR and CCC algorithms were compared for 2 lateral parallel opposed and one oblique (45 degree) fields (3Ãâ€"3 cm2) irradiations at 18 MV using 30 º physical wedge. Results: Our results showed that there are significant difference between ETAR and CCC in calculation of delivered dose in pituitary irradiation. Also, none of the algorithms can predict actual dose in air cavity areas, except Monte Carlo method. Conclusions: As differences between algorithms may have effects on quality of treatment, it is important to evaluate algorithms to choose the best one for use in clinical situations. MC method is a great evaluation tool for comparison of clinical dose calculation algorithms. Keywords: Treatment planning system, Dose calculation algorithm, Monte Carlo simulation, ETAR, CCC Introduction The main objective of radiation therapy is to deliver the maximum possible dose to the target tumor with minimum dose to the normal surrounding tissues [1]. To achieve this, a good understanding of the dose distribution in irradiated tissue and most importantly, experimental verification of this distribution is needed. During the actual radiation treatment planning in clinics, dose distribution calculated by treatment planning systems (TPS). Any deviation in these calculated distribution would lead to difference in patients delivered dose and would have an important effect on quality and effectiveness of the radiotherapy treatment. Most of dose calculation algorithms in TPSs are inaccurate in radiation disequilibrium conditions such as near tissue inhomogeneity like near air cavities and bone-soft tissue interfaces for small and complex radiation fields [2-5]. Therefore, it is important to validate this dose calculations. Common validation is performed by comparisons with measured data which their reliability depends on measurement situations and instruments and several other aspects. So, there are some limitations in this kind of validation such as the fact that it is impossible to verify the dose calculations in some parts of patients body for example in brain irradiation. Currently, it is well known that the Monte Carlo (MC) is the most accurate method for dose calculation [6-10] and with the advancement of computer technology, dose calculation algorithms based on the MC method have the potential to be used to calculate the delivered dose in radiotherapy clinics. But, due to the time consuming process of the full MC calculations and some of the limitations in speed of computers in clinics [11], it is still impossible to use full MC in routine clinical calculations. However, it is most powerful technic to verification of TPSs dose calculations [12-14]. According to mentioned limitation of TPSs dose calculation algorithms, it is important to verify their calculations. There are several studies on MC validation of common dose calculation algorithms in homogeneous medium and simple and also complex radiation fields [15-22], but because of the several complex situations in clinical irradiations, it is important to find the amount of differences of dose calculation algorithms results with actual delivered dose in the patient body for all of these situations to find the best and accurate algorithm to choose for use in radiation treatment planning process. In this article, we compared two dose calculation algorithms of CorePLAN TPS for computed tomography (CT) images of a patient with pituitary adenoma. The algorithms were equivalent tissue-air ratio (ETAR) and collapsed cone convolution (CCC) which are routinely used in radiation treatment planning. The project divided in to two parts: validation of MC model in homogeneous and heterogeneous medium, and comparison of ETAR and CCC algorithms with MC as a gold standard. After validation of simulated head of the medical linear accelerator (Linac) in water phantom as a homogeneous medium, the modeled head verified in Rando phantom as a heterogeneous medium for pituitary gland area irradiation. In the second part, ETAR and CCC algorithms were compared to MC simulation for planned pituitary radiation same as one in Rando phantom. Materials and Methods Monte Carlo Simulations The EGSnrc [23] user code BEAMnrc [24] was used to model an 18 MV beam from a Varian 2100C/D (Varian Medical Systems, Palo Alto, CA). The Linac was modelled with different component modules (CM). Table-1 shows these components and their materials. The schematic geometry showing the CMs are shown in figure-1. The 3D image created by EGS_WINDOWS [25] program. In this study, ISOURC==19 was used for modelling the incident electron beam. This source is a circular beam with 2-D Gaussian distribution of particles. ECUT and PCUT parameters which used to define the global electron and photon cutoff energy, were set to 0.7 MeV and 0.01 MeV. Also, Electron Range Rejection with ESAVE value of 0.7 MeV in the target and ESAVE-GLOBAL=2 MeV and Directional Bremsstrahlung Splitting with NBRSL=750 were used to minimize the simulation time. Phase Space data were created for open 10 Ãâ€"10 cm2 photon beam and the percent depth dose (PDD) and profiles of measured and simulated data were used for verification of the beam energy and full width at half maximum (FWHM) of the incident electron beam in 30 Ãâ€" 30 Ãâ€" 30 cm3 water phantom using DOSXYZnrc code [26]. To drive best estimates for the energy and FWHM of the incident electron beam, the method which introduced by Sheikh-Bagheri and Rogers [27] were used. For comparison between calculations and measurements, all curves were normalized to the center of the field for dose profiles and the depth of dose maximum for the PDD curves. This procedure is suggested by Pemler et al. [28] for MC calculated dose distributions of single electron fields. Differences between the calculated and measured curves for dose profiles, were compared in terms of dose difference (DD) in the low dose gradient areas, and distance to agreement (DTA) in millimeter (mm), in the high dose gradient. For both of Rando phantom and patient studies, CT images of phantom and the patient were used by CTcreate program to make *.egsphant file for irradiation by ISOURC=8 in DOSXYZnrc code. Radiation Treatment Planning The study was done for Rando phantom and one clinical case CT images originally calculated with equivalent tissue-air ratio algorithm (ETAR) by CorePLAN treatment planning system for pituitary gland radiotherapy. Two other dose algorithms were used: collapsed cone convolution (CCC) and Monte Carlo program, BEAMnrc and DOSXYZnrc codes. The dose calculation algorithms were compared for 2 lateral parallel opposed and one oblique (45 degree) fields (3Ãâ€"3 cm2) irradiations at 18 MV using 30 º physical wedges. Figure 2 shows designed radiation plan for Rando phantom and patient CT images. Dose Distributions In Monte Carlo simulation, dose distributions were calculated with DOSXYZnrc that were used as a benchmark and in Rando phantom study, radiographic (Kodak EDR2) and radiochromic (Gafchromic EBT2) films used to obtain planar dose distributions. All films scanned with Microtek 9800XL scanner. Gafchromic EBT2 films scanned 24 h after irradiation [29]. As the pituitary gland is placed in level 3 in Rando phantom (see figure 3), dose calculations and measurements were compared for the delivered dose in surfaces between layers (2,3), (3,4) and (4,5), in terms of 2D isodose curves. All measurements were repeated three times. Results Validation of Monte Carlo For validation of Monte Carlo simulation, results were compared with measurements in water phantom and 18.2 MeV and 1.5 mm for energy and FWHM of the incident electron beam shows the best match with measurements. Figure 4 shows PDD and dose profile for mentioned energy and FWHM. For PDD curve, dose difference was below 1% and for dose profile, DD and DTA were 0.97%  ± 0.65 and 1.71 mm  ± 1.08 for open field and 1.23%  ± 1.09 and 1.79mm  ± 0.96 for wedged field. Evaluation of Monte Carlo simulation in Rando phantom Simulated Linac were evaluated by comparison with EBT2 and EDR2 film dosimetry in Rando phantom as a heterogeneous medium for pituitary radiation treatment dose calculations. This part of the study performed to make sure that simulated Linac have an acceptable performance in a heterogeneous medium similar to the patient body, where measurement of the delivered dose is impossible. Totally, differences between Monte Carlo and film measurements were 4.93%  ±0.87 for all of the layers. These differences were 4.62%  ± 1.37 for EBT2 films and 5.03%  ± 0.49 for EDR2 film dosimetry. Also, there were 1.2% difference between EBT2 and EDR2 results. Patient study results The final purpose of this study was evaluation of ETAR and CCC dose calculation algorithms in almost small size complex radiation wedged fields. To achieve this, Monte Carlo simulation used as a gold standard to compare these algorithms. Figure 5 shows results of the radiation treatment planning using Monte Carlo method, ETAR and CCC dose calculation algorithms. The differences between Monte Carlo and dose calculation algorithms were 6.40%  ± 3.44 (range: 3.8% to 10.3% ) for CCC and 10.36%  ± 4.37 (range: 5.5% to 13.9% ) for ETAR. Discussion Dose calculation algorithms in treatment planning systems have an important role in radiation oncology departments. Any inaccuracy in predicting dose distribution in patients body will change the quality of the treatment. So, it is important to find the suitable algorithm for dose calculations in radiation therapy process. New algorithms which commonly used in TPSs, beside of their improvements in calculation, may have appreciable inaccuracies in some clinical situations such as small fields, electron disequilibrium and interfaces between different densities [7]. In this study, the differences between CCC and ETAR algorithms were compared to MC simulation results which considered as a gold standard. The study was done for a patient case with pituitary adenoma. To achieve this, the project divided in to two parts. The first step was validation of modelled Linac head in water and Rando phantom as homogeneous and heterogeneous medium. Results of simulated head in water phantom showed that the best match between simulated results and measurement data will appear when energy and FWHM of incident electron beam was set to 18.2 MeV and 1.5 mm, respectively. These amounts were in the range of their resulted amounts in previous MC studies [27, 30-32]. There are several recommendations for evaluate the accuracy of dose calculations in various areas with high or low dose gradient[33-38]. Our results for open and wedged fields in water phantom were in agreement with recommended amounts by Venselaar et al.[33] for dose profiles and also differences between measured and simulated results were under 2 percent recommended in previous studies for PDD curves[12, 27, 33, 39]. Evaluations in Rando phantom study showed 4.93%  ±0.87 for all of the EBT2 and EDR2 layers in comparison with MC simulation. This difference was little than 7% discrepancy reported by Brualla et al.[40] and was more than Dobler et al.[16] results which reported 3% difference between MC and film dosimetry in heterogeneous medium. There would be two reasons for this difference. The first one is the gaps between Rando phantom layers which made by placing the film between them. These gaps are larger for EDR2 films because of the thickness of their cover. While, in MC simulation these distances would not considered in calculations. The second one is the fact that in high density tissues such as bone, as the number of the scattered secondary electrons increases, delivered dose will decrease and this will considered in MC calculations. Because this method considers all of the interactions occur in that tissue and calculates the delivered dose in it. But in film dosimetry, film density is equal to the soft tissue density and bone scatter electrons will cause an increment in delivered dose in the film and this may lead to a disagreement between MC and film dosimetry. Film dosimetry have uncertainties pertinent to several factors such as nonuniform thickness of the sensitive layer, temperature effects, scanner uncertainty and its warm up effect[41-43]. There was 1.2% difference between EBT2 and EDR2 films. EDR2 films are light sensitive and were cut in a dark room; However, this low light may have effects on measurements. Also, EDR2 film processing have remarkable effects on the results while there is no need to process the EBT2 films. Final results showed about 6.4% difference for CCC algorithm and about 10.3% for ETAR algorithm in comparison to MC simulation. Chow et al.[44] evaluated the anisotropic analytical algorithm (AAA) and CCC in heterogeneous phantom for tangential photon beam. They showed that the mean dose differences between MC and CCC was about 4.6% for 15 MV photon beam with 7Ãâ€"7 cm2 field size. Polednik et al. [17] in comparison between pencil beam (PB) and collapsed cone (CC) algorithms in an anthropomorphic phantom, reported that there is about 6% difference between CC algorithm calculations and measurements. Our results are close to their findings and also Calvo et al. [19] results which reported about 5.6% differences for CCC in comparison with MC. Figure 5 shows that none of the algorithms could predict the actual dose in air cavity except MC. This difference is larger for ETAR. This is due to this fact that ETAR algorithm uses the ratio of two tissue-air ratio (TAR) for inhomogeneity correction and in definition, TAR is ratio of absorbed dose in a given depth in absorbent material to the same depth in a small air region in electron equilibrium situation. Therefore, this algorithm assumes that there is electron equilibrium in all points. So, in bone-air interfaces which there in no electron equilibrium, ETAR will have fault in dose calculations [45]. Also, ETAR only considers primary and scattered photons and doesnt consider the secondary electrons. Hence, it cant evaluate the electron disequilibrium [12, 46-50]. While, CCC models electron transport and will predict the effects of electron disequilibrium in heterogeneous interfaces [51]. Our results showed that CCC algorithm as a model based dose calculation algorithm, have a better agreement with MC simulation and the results of this study confirms the previous studies [15, 52-56]. In conclusion, as differences between algorithms may have effects on quality of treatment, it is important to evaluate algorithms to choose the best one for use in clinical situations. MC method is a great evaluation tool for comparison of clinical dose calculation algorithms. Acknowledgments This work was financially supported by grant no. 90-04-30-15948 to S. R. Mahdavi from the deputy of research of Tehran University of Medical Sciences. The data presented here are provided from the K. Tanhas MSc thesis. The authors would like to thank Dr. M. Sohrabpour from Sharif university of technology for his support on this study and physics staff of radiotherapy department of Pars Hospital at Tehran, Iran for their assistance.

Saturday, July 20, 2019

Business Reengineering Essay -- Business, Change

Reengineering or the business process reengineering was one of the biggest business ideas in the 1990s, in its classical view, Davenport et al (2003) claimed, it incorporated few diverse ideas: â€Å"a) The radical redesign and improvement of work; b) The attacking of board, cross-functional business processes; c) [Stretch] goals of order-of-magnitude improvement; d) The use of IT as an enabler of new ways of working† (p. 157). In the beginning, reengineering was simply an idea to rebuild processes using the then new applications of IT, but lastly it became a dissolute thing: laying-off loads of workers or cutting the cost of production merely to get a company's stock price up; it instead became a real hierarchical diversion or pastime for senior executives that they suppose to create solution or new approach for issues (Ubiquity, 2003). 3C leaders and managers must learn all these past mistakes of reengineering related to organizational change and new business ideas, as Davenport et al (2003) analyzed and suggested: 1) Do not forget that any transformation, change must be implemented by employees. If people and their wishes and behaviors are not consider firstly in any new business approach, it will probably have a tough time succeeding; 2) Do not seize-upon the most radical, hype-laden narrative of the new idea as the one you want to set up in your organization; the expectations about what you can achieve may be raised higher than what you can achieve; 3) Reengineering should augment or supplement rather than replace ideas; No single idea is all-encompassing or all-powerful; 4) Radical or across-the-board change is inherently riskier than incremental change; 5) When carrying out a new business idea, managers are all ... ...in which to run experiments that the gurus may need to develop their proposals or ideas (Harvard). In strategic planning and evaluating creativity, 3C management must measure the courses of idea and creativity to ensure they obtain the best and maximum returns from platforms; feedback, criticism and suggestion could develop into the direction or focus of creativity, but they also would facilitate, motivate and improve idea or innovation in the organization (Davenport et al, 2003). Overall, in order to manage and deal with the attributes that consider stifling creativity in 3C, management not only must discourage intolerance or fear of failure and maintain openness with constructive and optimistic, but they also must continue tolerance, flexibility, determination and intelligent risk taking with understanding creative potential in self (Harvard, 2003).

Friday, July 19, 2019

External influences Economy Interest rates Most businesses will need Es

External influences Economy Interest rates Most businesses will need to borrow money. The interest rate will affect how much it costs. External influences Economy Interest rates Most businesses will need to borrow money. The interest rate will affect how much it costs a business to borrow money. If the interest rate is high the money a business owes is more than before. A 20% interest rate rise would affect Cadbury’s; they would have to pay extra money towards the loan. This too would affect Sainsbury's in the same way. Any interest rates that go up will affect a business because the business needs to make up the costs and the only way to do this is to higher the prices of their service or products. The company might have to borrow more money to pay for the interest rate going up. Competition Competition is where rival businesses aim their products at the same customers and try to win and keep their custom. Sainsbury's main competitors are tescos, Asda and Morrison’s. They all sell food and household goods. Asda could sell more food than them so Sainsbury’s would get less customers, Cadbury’s main competition is Masterfoods, coca cola, Walkers and Rowntrees. If Cadbury in the next year didn’t release any more chocolates or sweets and rowntrees released different sweets even though people would still buy Cadburys old ideas they would buy rowntrees new products. This way Cadburys would loose money and they would loose customers buying their ...