The Usability and Safety Aspects of the Defibrillator Essay

The Usability and Safety Aspects of the Defibrillator - Essay Example The essay "The Usability and Safety Aspects of the Defibrillator" talks about the structure of an automated external defibrillator and the aspects of its usage. The evolution of the world has been accompanied by new, varied concepts. Needless to say, such variations have been felt in the way sets of equipment are designed. The manufacturing of sets of equipment has been persistently evolving. What appeared to matter so much, as far as the manufacturing of instruments was concerned, pertained to beauty and the size of the working of the instrument to enable it to serve the intended purposes. The transformations in the current, evolving world have changed the whole scenario. It is clearly depicted by concepts such as ergonomics, inclusivity, and work safety. As if not enough, desirable workplace environments has shaped the manufacturing process in certain ways, including the necessitation of incorporation of aspects pertaining to efficiency, as well as a reduction of stress at the workplace. Indeed, in the current world, ergonomic concepts and quality and safety of the equipment are arguably inseparable. Ergonomics concepts are inclined on coming up with designs of equipment and devices that are suitable for human operations. The objective of ergonomic concepts is to foster productivity while fulfilling the health requirements. The relevance of ergonomic concepts is most appreciable when designing products and equipment, as well as machines that contain interfaces that are not only reliable but easy to use., but easy for use (Beauchamin & Hays, 1996). Generally, there are several techniques and tools that are often used as approaches of human factors in addressing safety issues. These include usability testing, forcing functions, and sta ndardization and resiliency efforts. Human factors engineers often test new equipment and systems under the real world conditions in ensuring that unintended consequences of the new technologies are identified (Burns & Vincente, 1994). In most cases, usability testing can help in identifying workarounds. This paper seeks to discuss the safety measures in the design of each component in the automated external defibrillator (AED) with a focus on the reliability of the device in terms of bio-compatibility, mechanical failures, and electrical failures. Usability and Safety Aspect of the AED The automated external defibrillator is one of the portable electronic devices within the medical field that is used to automatically diagnose the potentially life threatening ventricular tachycardia and cardiac arrhythmias of the ventricular fibrillation in patients (Gliner et al. 1998). This device can treat these diseases through defibrillation, which is an application of the electrical therapy th at helps in stopping the arrhythmia, hence allowing the heart to be able to reestablish effective rhythm (Walsh & Krongrad, 1993). The automated external defibrillator (AEDs) has simple visual and audio commands that make them simple so that they can be used for layman. It is worth noting that in order to rate AEDs as being reliable in the diagnosis of heart related diseases, there was need for manufactures to take into consideration safety measures while designing each of the AED components in making sure the reliability of this device in terms of mechanical failures, bio-compatibility and electrical failures is guaranteed (Walsh & Krongrad, 1993). As a safety measure, the AED is designed in such a way that it can be used effectively and safely without any previous training. This implies that the use of the device is not restricted to the trained rescuers though training is often encouraged for purposes of helping improve on the time to correct pad placement and shock delivery. As often the case, the AEDs can analyze the ECG rhythm of a victim and be able to determine if a shock is needed. The semi-automatic AED often indicate the need for shock, which more often than not, gets delivered by an

ENTERPRISE AND ENTREPRENEURIAL MANAGEMENT MODULE Assignment

ENTERPRISE AND ENTREPRENEURIAL MANAGEMENT MODULE - Assignment Example Entrepreneurs are very important as they contribute to the development of the society. One of their main contributions to the society is the generation of jobs apart form the various products and services that they offer. The marginal success rate of entrepreneurs raises various important questions – What do entrepreneurs have or do that makes them stand from rest of the crowd? Why only a very few succeed in being successful entrepreneurs? Do entrepreneurs have special personal characteristics or attributes that result in their success? This essay is aimed at answering these questions. The essay discusses the various attributes, behaviors and skills associated with the entrepreneur that is discussed in the literature. Various authors and researchers have tried to answer this question. This paper relies on their works to answer the questions raised above. Various authors and researchers have identified or argued about the characteristics of an entrepreneur. It is now a known fact that entrepreneurs have special characteristics that makes them successful in their ventures. Bygrave (2003) in his article states that it is the environment and personal attributes that shape the entrepreneurial traits in a person. Richard Branson in his acclaimed books repeatedly mentions that his success as an entrepreneur is due to his personal characters and attitude that he developed due to the challenging environment that his mother created in his early years (Branson, 2008). Richard Branson mentions various instances where he is mother created situations and made little Richard realize about the hard truths in life. Bygarve (2003) identifies 10 D’s or 10 personal attributes that can be found in entrepreneurs. Various authors have different takes on the entrepreneurial characters, but most of the characteristics collide with each other. Followi ng are the various entrepreneurial traits identified by various scholars in the literature: Dream: Dream is nothing

Green Thumbs in the Family Essay Example | Topics and Well Written Essays - 750 words

Green Thumbs in the Family - Essay Example This paper will study the connections between these aspects of the plant and how exactly they correlate to both the Younger family and their internal dynamics. The significance of the flower pot can be seen as an encompassing support. It is what keeps the necessary components together for the continuation of life. This directly parallels the family unity that all the characters exhibit to different degrees in varying ways from Walter's need to provide stable income for the family to Beneatha's drive to become a doctor, thus helping other people while providing security for her own. The most direct representation of this surrounding support can be found in two main examples, however: Walter Sr.'s insurance money and Lena's purchase of a new house for the family. The first of these is a result of a lifetime of hard work to support his family - and, despite to what extent the work may have killed Walter Sr., his efforts have extended beyond his own lifetime to support the family after his passing. The example of the new house is Lena's own contribution to nurture and provide for the family, for they have essentially overgrown their current ab ode and must be transplanted into a new vessel. This proves to be an additional aspect of the flowerpot's symbolism, for it allows the life within to be easily transported to new environments. It is the support of the external flowerpot that contains the spirit of the earth inside - the full combination of heritage and environment which allows life to thrive. The earth within the Youngers' vessel contains the soil from everyplace they have ever been: from Africa to Southern America to Chicago. These aspects are paralleled through the characters. Beneatha carries a fascination of Africa, Lena carries all the memories of the South and it's racism. And as much as Beneatha rails against assimilation (ignoring the hypocrisy of her own plans to study Western medicine), both she and her brother Walter have done so to an extent. Lena is correct when she observes that her two children talk about things her and her husband never thought about - for their concerns are the concerns of a new day and a new environment. It is important to always remember the soil that initially nurtured one's life yet is also inevitable that some of the soil must be replenished, for whatever reason. Lif e needs a replenishment of nutrients; these come from what is most conducive to the current environment. Thus, the family must use the surrounding support of their heritage and family (the pot) to contain and combine the influx of new conditions ('assimilation' of new and old soil) in order for the life of the family to thrive. There are two quotes from Lena in Act Two, Scene Three, where she first explains her actions with the plant as that she is "Fixing my plant so it won't get hurt none on the way" and then defending her plant by claiming that "It expresses ME!" Lena's consistent overtures to gardening (and the family's acknowledgement of it through their gardening gifts to her) are fitting, as she has nurtured the life of her family for so long. Yet her identification with it is somewhat incomplete, as revealed by her connecting her own children with it in Act One, Scene

Biochemistry discussions Assignment Example | Topics and Well Written Essays - 250 words

Biochemistry discussions - Assignment Example Replication takes place in the nucleus of the cell. The raw materials for the process are nucleotides, RNA primer, and enzyme DNA polymerase whereas the end product is double-stranded DNA. Translation, on the other hand, takes place in the nucleus. The raw materials are a DNA strand that acts as a template, enzyme RNA polymerase whereas the end product is a messenger RNA (mRNA) strand. This process takes place in the ribosomes. Translation requires mRNA, transfer RNA (tRNA), enzyme aminoacyl-tRNA synthetase, and amino acids thereafter giving proteins as the final products. DNA replication, transcription, and translation take place in all living cells except the red blood cells because they do not contain nuclei. These processes are fundamental in humans because they ensure the continuity of life through maintaining the integrity of the genome. They also ensure that physiological processes take place normally because the proteins produced serve numerous functions in the body. The liver, pancreas, and gall bladder carry out the same function of conveying digestive substances to the duodenum. The liver secretes bile juice, which contains bile salts that emulsify fat droplets, increasing their surface area and making it easy for digestive enzymes to work on them. Bile, in addition, increases the alkalinity of the stomach fluids thus making the environment favourable for digestive enzymes (The liver, gallbladder, and pancreas: The digestive system and the liver. (n.d.). The pancreas, on the other hand, secretes various digestive enzymes. These enzymes get into the duodenum via the pancreatic duct. The pancreatic enzymes are vital for digestion and include the pancreatic amylase that breaks down carbohydrates, pancreatic lipase that breaks down fats into fatty acids and glycerol molecules. The pancreas also produces enzymes

Actors and Acting Essay Example | Topics and Well Written Essays - 500 words

Actors and Acting - Essay Example Just like the stories being told, there are also various categories that these actors fall into, depending on the role being portrayed. The 5 definitions of actors are impersonators, interpreters, personality, wild card and characters. These are the actor types that I will be discussing in the following pages. To get started, I first want to discuss the Impersonator. Our text clearly defines this type of actor as "suggesting that the actor has simply copied the manner, dialect, and behavior of a character, instead of creating the character." Examples of effective character acting provided as an example include the portrayal of Phillip Seymour Hoffman of Capote, an impersonation job which, due to its effectivity, won the actor an Oscar, and Helen Mirren as Queen Elizabeth in The Queen. As an impersonator, they were required to be as similiar as possible to the real life person they were portraying. For Hoffman, it was the trademark lisp, for Mirren, it was her uncanny resemblance to t he actual Queen. Aside from these two people, another effective personator who comes to my mind is Frank Langella in Nixon. His similarity in looks and his ability to copy the actual speech pattern of Pres. Richard Nixon helped the audience immerse in a total viewing experience. He was not just acting as the president, there were actually times when you would believe that he was the president because of the way he conducted himself while in character.

Export-Import Bank Case Study Example | Topics and Well Written Essays - 500 words

Export-Import Bank - Case Study Example Ex-Im began issuing loan guarantees after thirty years of existence. This move aimed at encouraging commercial banks to take part in export markets. Loan guarantees focused on reducing the administrative obligations of commercial banks. Loan guarantees surpassed direct loans, making insurance to become popular. Ex-Im guarantees 90% of the outstanding balance of working capital loans from a commercial bank to an exporter. It only authorized transactions that had a reasonable assurance of repayment. It offers medium and long-term coverage for transactions by providing an 85% guarantee. In this case, a 15% deposit is required from the buyer. Ex-Im charges the following costs on direct loans and medium and long-term guarantees; Export-Import bank charged fixed interest rates on loans that were set at the Commercial Interest Reference Rate (CIRR). The cost of direct loans was static; that is, it was set after numerous negotiations among countries in the OECD (organization for Economic Co-operation and Development). All medium and long-term guarantees were subject to a ‘one-off’ exposure fee. The exposure fee was determined by the degree of transactional risk. For example, scheduled payments from Amal to Wells Fargo were subject to a 0.2 exposure risk value. The beta constitutes the transactional risk for the scheduled payments. Ex-Im would charge a 0.2 exposure fee for the transactional risk. Importer payment obligations differed from those of foreign buyers of a U.S. product. Direct loans and guarantees of importer payment obligations are influenced by various aspects such as; market risk premium of the destination country, the repayment period, percentage of exports covered, and whether the exposure fee was financed or paid in advance. Each country has a baseline fee set for sovereign borrowers. Non-sovereign borrowers are subject to a transaction risk increment higher than the

Public Health in Nursing Practice Essay Example | Topics and Well Written Essays - 2000 words

Public Health in Nursing Practice - Essay Example This essay approves that there are several characteristics of the population of the United Kingdom that can draw attention as they pose threat to the public health. Among these is the increasing concern that the population’s abusive patterns with regard to drug abuse is drawing. In a report of the UK Drug Policy Commission, the people of UK were identified to be the highest consumer of prohibited drugs in all Europe. This has also resulted to the increase of drug-related deaths which pushed it to the second spot among the European countries with high drug-related deaths statistics as well. Such deaths have been identified to be due to â€Å"poisoning, drug abuse, or drug dependence† This report makes a conclusion that drug abuse and dependence is indeed a public health concern that does not only affect the United Kingdom but the rest of the world as well. As a result, local, national and even international programs to respond to its negative threats are needed. The demographic trends and the behavior of the British people towards the use of recreational drugs which is identified to be â€Å"cultural† in origin is indeed alarming since it has been related to many severe health conditions and even risks to security that puts the health of the community as a whole in jeopardy. Although improvement is now apparent, the Government, health organizations and other related agencies must not only make policies to fight drug abuse as public a concern but also continue to monitor and evaluate these policies for the purpose of public health maintenance and improvement through the use of indicators such as demographic trends.