Essays on Tube

Introduction

In essence, Mechanical Ventilation (MV) aids in supporting critically ill patients in maintaining adequate gas alveolar. Pediatrics patients admitted to the intensive care units in need of the therapy ranges between 30% and 64%. Despite the benefits derived from using this method, some complication emerges at the end of the process when it is employed in premature babies. Primarily, the therapy may lead to lung damage, dysfunction of the right ventricle, and pneumonia. Extubation occurs when a patient can maintain efficient gas exchange without being sustained by the ventilator or when requiring minimum support. Notably, ventilator disconnection comprises of ...

Yves Saint Laurent is a French fashion designer renowned for making ready to wear clothing. Recently Yves Saint Laurent has changed the brand name to Saint Laurent Paris. The change in brand name to Saint Laurent Paris was introduced by the director Hedi Slimane. “Unfortunately, Hedi Slimane is no longer with the company (Phelps, 2016)” and the director is now” Anthony Vaccarello for Saint Laurent Paris (Milnes, 2016)”. In the fashion world things are subject to change which is good in some ways. It depends on the timing of the change in the industry. To make sure the name ...

Q1. A 200mm diameter pipeline divides into two smaller pipelines, one being 100mm in diameter and the other being 150mm in diameter. If the velocity in the 100mm pipe is 0.3m/s and that in the 150mm is 0.6m/s, calculate the flowrate in litres/s and the velocity in m/s in the 200mm pipe. [ 13 l/s, 0.413m/s] Solution: Flow Rate = (pi/4)(0.1)2(0.3) + (pi/4)(0.15)2(0.6) = 0.01296 cubicmeters/sec = 12.96 l/sec. (ans.). Velocity = (Flow Rate)/(Area) = [0.01296]/[(pi/4)(0.1)2] = 0.4125 m/s. Q2. If the specific volume of water is 0.001251 m3 /kg. calculate:

The mass and weight ...

Experiment Title

Indication of pH and Buffer Solutions Statement of Purpose Train the preparation of the acetate buffer solution (pH = 4.8) and other solutions. Practice the pH measurements. Test the buffer capacity of the prepared buffer solution.

Hypothesis to test:

- property of buffer solution to keep pH, when the strong acid or base are added; - red cabbage juice acts as a natural indicator, which helps to identify the pH of the solution.

Description of the Experiment

Acetate Buffer Preparation: mix 10 ml of 0.2 M acetic acid with 15 ml of 0.2 M sodium acetate, add 75 ml of distilled water was added. Store in an ...

The human body and the way in which it operates is a wonder in itself, but there are many more wondrous systems which keep this body going in the way that it does. One such system is the circulatory system which is exclusively responsible for the distribution of blood towards all of the organs scattered within the body. There are many organs and a scattered network of blood vessels which all come together to get this system up and running, and any hitch in any one of these individual blood carriers could become tedious and sometimes even chronic for ...

Interview on Ethical Dilemma

Interview on Ethical Dilemma

Interview summary with Hospital Administrator –Shirley

1- Please describe your philosophy and views on the national right-to-die battle of Terry Schiavo? Shirley, the hospital administrator, indicated that the national right to die categorically displays the conditions that one can ask to die. One requires no control over their lives especially in situations like that of Terri. Terri was in pain and to make it worse she was not able to communicate (Khan, 2006).

Shirley agreed that United States Congress intervention was appropriate. Shirley indicated that the attention the case got would be good for the public to understand their rights. 3- ...

Executive Summary

Globalization has allowed people to move from their native homes in search for greener pastures and better living standards in foreign countries such as the USA, Canada, United Kingdom, and United Arab Emirates. One of the population that has gone global is the Desi population that is originally from Asia: India, Pakistan, and Bangladesh. People from these countries share a common history and culture because the three countries were in the past one. However, something unique with the Desi population is that they still want to maintain their unique tradition even while in the foreign countries. One of their ...

Overview: Overview: Antigen-antibody reactions are commonly used in immunological assays. In a traditional agglutination assay, the end product is a visible antibody-antigen complex that settles as visible particulate matter in the solution. In other cases, the reaction is invisible and wants the use of a specific enzyme or isotopic probes that can amplify the signal created by the antigen-antibody reaction, so that they can be detected with the naked eye or an ELISA/RIA reader1. Hemagglutination is a visible antigen -antibody assay in which soluble antibodies react with antigen on the surface of (red blood cell) RBC to form a ...

Societies have their base on human interaction. For many years, human evolution has depended on communication for fulfilling needs and setting new challenges. The migration of tribes, the first forms of commerce, the birth of civilizations were all possible thanks to communication. One may see the evident impact of communication on the evolution of the world, which has obviously changed from the pre-historic times to the present. Even though communication has not always led to positive outcomes, humans have proven that only good and effective communication leads to success. The transformation of tribes into empires depended greatly on who ...

Introduction

This experimental study has been carried out to determine the corrosion behavior of Type 316 stainless steel when it is exposed to chloride solution, which is usually a substantial component of sea water. The inherent corrosion behavior of stainless steel takes place in two phases as demonstrated in the morphological evidence the test pieces. The initial phase entails induction process, and it is followed by a breakdown of passivity, which culminates in the active dissolution of the material. The corrosion experiment is based on an electrochemical technique whereby the seawater acts as an electrolyte medium, whereas the test pieces ...

Multiple choice questions

Multiple Choice Questions

Increased erythropoietin production Increased heart rate Increased cardiac output Enhancement in oxygen extraction The answer for this question is b. increased heart rate. A reduction in tissue oxygenation as happens in anemia stimulates increased production of erythropoietin through a complex feedback mechanism. Increased production of erythropoietin enhances erythropoiesis in anemia. Increased extraction of oxygen in anemia is a compensatory mechanism that is mediated by an increase in 2, 3-diphosphoglycerate concentrations. Increased cardiac output is the main hemodynamic compensatory mechanism in anemia that aims to increase blood flow to the body organs. An increase in heart rate ...

Fabrications of bike tipping trailers entail several materials and processes that are performed in specific sequence. The first step entails the installation of the steel trailer kit. Some of the basic components of this trailer include; the steel trailer kit, frame of the box and the box, the trailer wood support, hydraulic jacks, door hinges, steel brackets and aluminum connectors to the bike. It is imperative to ensure that all the components needed for the fabrication of the tipping bike trailer are is the required condition before the assembly and fabrication process is started. Different tipping bike trailers require ...

A proposal in partial fulfillment of the requirements for the degree of

Introduction Wheat (Triticum sp.), an extensively adapted crop, is one of the primitive and primary staple food crops in the world. Wheat is cultivated from temperate; dry to irrigated or rain-fed areas, to warm, humid or cold conditions. Such a high adaptability is attributed to its intricate genome (Acevedo et al., 2002). Wheat cultivation covers more land area compared to other commercial crops and endures to be an essential food grain for humans (Curtis, 2002). Estimations reveal that by 2050, the population of the world will reach 9.1 billion (34 percent greater than today); correspondingly, the food requirement and ...

Question 1

Angiosperms can be dioecious or monoecious and they go through sexual production (Raghavan, 1999). Angiosperm flowers are considered to be hermaphroditic or androgynous because the same flower contains both female and male gametophytes. However, angiosperm flowers with only female gametophytes are incomplete and considered to be either a carpellate flower containing only female parts or a staminate flower containing only male structures. The male reproductive structure of the angiosperms is known as andoecium. The anthers that are found in the stamens of the angiosperms contain pollen sacks, which have the microsporocytes. The cells go through a process known as ...

What do you believe is the greatest achievement that the health care industry has made from both the patient and provider perspectives? Why? In the past decade, there has been significant improvement in the maternal and infant health with respect to the healthcare industry. The rate of neural tube defects and infants born with heritable or metabolic disorders have reduced owing to new diagnostic and treatment modalities. In the early 1990’s, the US government led to the implementation of folic acid fortification in all cereal grains that were termed as enriched. This movement led to the reduction of ...

The crash of Air France 447 is considered the biggest disaster ever to hit Air France and Airbus since the beginning of their venture into this industry. All of the 228 passengers and crew of the flight were killed in this accident (Palmer, 2013). Due to the delay in the recovery of the black box from the ocean bed, the investigations and final report, published by BEA, took nearly three years for completion (Jonathan, 2011). The final investigation revealed that the accident occurred due to the inconsistent data indicated by the FMC (Flight Management Computer System) regarding the fluid ...

Introduction

Weighing machines have long been used for measuring weights of various objects. The basic principle behind weight measurement is balancing of force due to gravity of an object with some known standard. You could easily find weight of small objects by using standard weighing balances having pair of pans i.e. one carrying the object to be weighed and the other is used to put loads of known weights until machine is balanced. This method cannot be applied on large scales involving heavy machinery, vehicles, or even humans. Another traditional method of weighing involves balancing force of an object due ...

Radiology, without which it is impossible to imagine modern medicine, was born with the discovery of the penetrating radiation made by German physicist Roentgen. This industry has largely contributed to the development of medical diagnostics. As any other industry, its development was revolutionary and has been infuenced by modern technologies. Today, X-ray diagnostics gets a new development. Using age-old experience of traditional radiographic techniques and armed with new digital technologies, X-ray diagnostics is still a leader in diagnostic medicine. In 1894 German physicist Roentgen (1845 - 1923) launched an experimental study of electrical discharges in the glass vacuum tubes. ...

Arsenicosis is a medical condition that results from increased levels of arsenic elements in the bod and it is a global health concern that many states are vehemently fighting to eradicate. A study in 2007 noted that over 137 million people globally are victims of arsenic poisoning and many more face risks of exposure. For instance, the situation in Bangladesh has been alarming, where arsenic poisoning dates many decades back. Apparently, it has a population of over 156.6 million citizens and at least 90 percent face a chronic risk of exposure of the arsenic poisoning (Khan et al., 2003). ...

Ventilator Associated Pneumonia

VENTILATOR ASSOCIATED PNEUMONIA Ventilator associated pneumonia can be described as infection of the Lungs developing in a patient who has been kept on ventilator. Ventilators are used to help patients in proper breathing by administering oxygen with the help of a tube which is placed in the mouth nose or through a hole made in front of neck of the patient. Infection may develop due to entry of the germs through the tube and as a result, the germs may gain entry into the lungs of the patient leading to an infection. In order to bring down the rate ...

Executive Summary

An in-depth analysis of the New Zealand’s auto industry reflects that establishment of an auto parts business focusing on the import and supply of all parts of Japanese made cars will be successful in the country. New Zealand greatly relies on used car imports from Japan to meet the local need for higher ownership levels. The planned venture will be located in Auckland, New Zealand. It proposes to import auto parts of Toyota and Nissan in the initial phase of market positioning. In the entry phase, the organization will particularly try to meet the needs of Toyota and ...

Abstract

The uses of radiation revolutionized medicine when experimentation on its potential applications begun. X-Ray technology, discovered by Wilhem Roentgen, is currently used as a common tool for diagnostics; Henri Becquerel, Marie Curie and Pierre Curie dedicated themselves to further investigations in the field, discovering additional radioactive materials (polonium and radium); radiation therapy is a popular treatment for cancer. This paper analyzes the historical background behind these two applications of radiation in the medical field. Moreover, the different types of radiotherapy are described (external-beam radiation therapy, internal radiation therapy). The concept of radiation homeostasis, which is the notion that low-dose ...

Introduction

The kinetic characteristics are important for the design of chemical engineering processes. They allow assessing the time required for the reaction and choosing the temperature range suitable for the reaction. The reaction path is observed by measurments the transmittance of the Crystal Violet solution that reacts with sodium hydroxide. The concentration, and the color of the solution changes with the reaction flow, and this is measured by the spectrophotometer.

The data are plotted as concentration - time and logarithm concentration time, and the reaction rate is:

Rate = [Crystal Violet] [Sodium Hydroxide]. Using the excess concentration of one of the reagents, the reaction rate with respect to the other reagent is found from logarithmic plot (Rahul & Chakrabarti ...

Influence of Social Media

Social media is defined as “computer-mediated tools that allow people or companies to create, share or exchange information, career interests, ideas, pictures and videos in virtual communities and networks” (Buettner, 2016). Social media today comes in so many platforms. The most famous platforms used by billions of people around the world are Facebook, Instagram, SnapChat and others. In the United States, the total time spent by users on the Internet on social media reached 121 billion minutes in 2012 (Nielsen, 2012). Experts talk about three major types of social media: public social networks (Facebook, SnapChat, etc), Social Extranet – where ...

Naso-duodenal tube feeding is recommended for hospitalized patients. This means that Sharyn does not need the assessment of the caretakers and the important home details. However, like any other patient, Sharyn needs to be psychologically prepared to the feeding method. Therefore, there will be need to establish an understanding between the hospital caregivers and Sharyn. This will include explaining to the patient everything concerning the procedure including the indication and contraindication. Hospitals will often provide the outlined procedure for the administration of the feeding method and this should be followed to the latter. According to the hospital procedure and ...

Introduction

Chlamydia is a sexually transmitted disease that has adverse effects on the health of the patient if not diagnosed and treated at early stages of development. Human bodies are designed to develop resistance to pathogens that cause such infections despite the availability of medicinal cure for the infection. This paper seeks to answer various questions about the infection by first describing the disease and how it is contracted. The symptoms and problems associated with the disease are also discussed while providing a detailed explanation for the high recurrence rate of the disease among the African American urban women. Besides, ...

Abstract

Worldwide, ovarian cancer is ovarian cancer is the sixth most diagnosed cancer and is responsible for the most deaths annually than any other disease of the female reproductive system. It has a poor prognosis because the symptoms are vague even into Stage IV of the disease. Epithelial ovarian cancer constitutes about 90% of diagnosed cases. Research has demonstrated that hormone therapy, chronic pelvic inflammation, and BRCA1 and BRCA2 germline pathogenic variants are factors in the etiology of ovarian cancer. BRCA1 and BRCA2 is also associated with breast cancer, pancreatic cancer, fallopian tube cancer, prostate cancer, and primary peritoneal cancer. ...

The Key Constitutional Concepts is a film that focuses the creation of the American Constitution during the historic Constitutional Convention (Key Constitutional Concepts). It has three segments that examine the creation of the American Constitution and two constitutional conflicts that were landmark cases of the Supreme Court. The cases include Youngstown V. Sawyer and Gideon V. Wainwright and Youngstown v. Sawyer. Specifically, the first section of the three-part documentary examines the creation of American Constitution (Key Constitutional Concepts). In 1787, the Constitutional Convention held in Philadelphia’s Independence Hall brought together the Founding Fathers who faced the daunting task ...

Article Review

Scholl, Theresa and William Johnson. Folic Acid: Influence On The Outcome Of Pregnancy. The

Folic acid has considerable impact on pregnant women and the improvement of fetuses. According to Scholl and Johnson, folic acid is an extremely crucial supplement that all pregnant women require for the purposes of maintaining the well-being of the fetus during its growth and development. The article captures the importance of folic acid by noting that it prevents the fetus from developing what the authors refer to as neural tube defects, promotes healthy growth of the fetus, as well as aiding in the prevention of ...

Identification of the Unknown Microorganisms

Unknown #1 Unknown #2 1. The identification of bacterial strains is a common practice in clinical and medical fields. The ubiquitously present microorganisms can be both, beneficial or harmful to the host they attack or inhabit. Since times, several biochemical characteristics have been identified for many bacteria that commonly are related to humans. These characteristics and morphology have been arranged in a systematic way to identify the targeted unknown microorganism along with ruling out the ones giving negative results for the characteristic tests. This way the search was narrowed down for each of the two unknown microorganisms. The Gram ...

Introduction

The main objectives of this report include; designing the operational principles of parallel and counter flow of heat exchangers. Improving the understanding of fluid temperature and flow rate heat exchangers and lastly to calculate and determine the overall heat transfer coefficient of a heat exchanger ("Superplastic duplex stainless steel heads for the heat exchanger market", 2010). The parallel flow of fluid is characterized by the flow of cold and hot fluids in the same direction; it, therefore, means that the entrance for the two fluids are in the same direction likewise their exit are also normally in the same ...

Radiography can be defined as the science of making film records from X-rays, also known as radiographs of the human body’s internal anatomy, by exposing a film that has been sensitized to electromagnetic radiation to the body. It is with these photographs that a record is made out of the findings which are used for examination in the diagnostic processes (Hertrich, 2005). It was formally referred as ‘plain’ X-rays but was switched to the use of electromagnetic radiation because it is the suitable general term that covers the other types of medical imaging like ultrasound. Radiography is usually ...

Introduction

A refrigerator is an electrical device used in temperature maintenance below ambient temperatures. To achieve this function, the refrigerator should be able to create a heat sink at cold room temperatures a temperature that should be lower than the ambient temperature while at the same time also rejecting heats having higher temperatures than the ambient temperatures. To achieve this refrigerant is forced to undergo evaporation at temperatures lower than the ambient temperature(Griffiths, 1937). When the refrigerant is compressed at high pressure and condensing temperatures above the ambient temperature results in the loss of heat and condensation back to ...

However, by living an affluent life in a community dominated by the Caucasian community, Johnson’s wife and children tend to develop a blind eye towards their skin color. They believe that the fact that they are black has nothing to do with their identity. However, Johnson still sticks of the fact that there is a great difference. He compares the current black identity with the identity he had as a black boy. He realizes that there have been a lot of “imagined” changes that he feels that are not realistic (Cara). To him, a black will always be ...

Use of Fossil Fuels for Power Generation and the Need for Renewable Energy

According to Nelson (2011), more than 85% of the world’s energy consumption, which is estimated at 520 exajoules, is generated through the burning of fossil fuels such as petroleum, natural gas and coal (p.19). Electric power generation from non-renewable sources will, unequivocally, result in their exhaustion and creation of a major energy crisis. For this reason, it appears primordial to shift in a greater scale to alternate power generation, such as solar, wind, hydroelectric, etc. Amongst these, Sorensen (2011) explains that though hydroelectric power does represent one of the major forms of power generation, its growth is stagnant ...

My Name

Shell and Tube Heat Exchanger Lab Report Objectives Introduction A heat exchanger refers to a gadget that aids the transfer of heat from one fluid to another. The fluids involved can either be in direct contact or separated to avoid mixing (Ramesh & Sekulic, 2003). They are in common use in sewage treatment, natural gas processing, petroleum refineries, petrochemical plants, chemical plants, power stations, air conditioning, refrigeration, and space heating. A perfect example of a heat exchanger is in the internal combustion engine (ICE) (Hiereth & Prenninger, 2010). In such a situation, a circulating fluid called engine cooler flows over the ...

(Student’s Full Name)

According to John Arend, Mike Benkert, Audrey deFilippis and Saretta Tillmaand, when the Commerzbank building opened its doors in 1997, the “53-story” edifice became the one of the “tallest” buildings located in Europe (1). Nevertheless, the edifice’s distinctiveness did not come from its height, but, rather, it came from the way in which it combined “form, inventiveness, and technical expertise” (Arend, Benkert, deFilippis, & Tillmaand 1). The design and construction of the Commerzbank saw the “[b]reaking away from the American model of deep-planned, air-conditioned structures” that have a “central service core” (Arend, Benkert, deFilippis, & ...

Chapter 1 – Introduction to Color Study

1. What is the difference between direct light and reflected light? Give examples of each. Direct light travels from the source to the destination without being interrupted while reflected light is the light produced when the direct light bounces off a material. One example of direct light is the sunlight while reflection from the mirror is an example of reflected light (Young, Freedman & Ford, pp. 1080). 2. Describe the cause of color, the means used to generate it, and the effect. Light consists of a spectrum of light wavelengths which have a representative color; thus, upon reaching the retina ...

Introduction

E,coli bacteria is a commonly found within the human colon and it is a rod shaped enteric bacterium that grows in ideal conditions of 370 C. The bacterium can be cultured or grown in liquid or solid culture media within the lab. When grown in the ideal conditions, say LB broth, they tend to take a specific pattern while when grown in large amount of media they tend to take a lag phase where growth is minimal or none at all (Ding, Rahman, Purev & Oh, 2010). In the ideal environment, the bacteria tend to grow exponentially with their ...

Suppliers:

Amersham Biosciences Uppsala, Sweden Becton, Dickinson and Company (BD) Ireland, UK Bio Basic Inc. Ontario, Canada Biometra (an analytik Jena company) Göttingen, Germany

Bio-Rad California, USA

Biotek Instruments. Inc. Vermont, USA

Boeco Hamburg, Germany

Damad, The National Medical Products co. Ltd Riyadh, Saudi Arabia Eppendorf Hamburg, Germany Eurofins MWG Operon LLC Alabama, USA GE healthcare Buckinghamshire, UK GFL Gesellschaft for Labortechnik Burgwedel, Germany Health o meter® Professional Scales Florida, USA Labcaire New York, USA Lab-Line Kerala, India LG Electronics Seoul, South Korea New England Biolabs Massachusetts, USA Nichipet Texas, USA Panreac Darmstadt, Germany Promega Wisconsin, USA Pyrex California, USA Qiagen Boston, USA Sanyo Biomedical ...

Pregnancy presents a unique condition and it is of utmost importance by the care provider to conduct all the necessary assessments not only for the purposes of securing the health of the mother but also that of the unborn (London et al., 2015). The first weeks of pregnancy present a unique phase of pregnancy since most birth defects occur during these initial weeks. Examples of the defects include; neural-tube and congenital defects. This makes it necessary to conduct thorough and comprehensive assessment of the unborn and the mother so as to prevent the occurrence of these conditions. As such, ...

Introduction

Tobacco companies are developing and advertising products that they claim have reduced harm on the health of the consumers. As a result of this development, the number of youths using e-cigarettes is increasing at a very alarming rate. Center for Disease Control states that the use of e-cigarettes among the middle school teenagers as well as high school students has been tripling every year. It increased from 4.5 percent in 2013 to 13.4 percent in the year 2014. This was a percentage of high school teenagers alone. The use of e-cigarettes among the youths has greatly surpassed the youths’ ...

Abstract

Transformation remains, and hugely significant tool in extending the borders of life sciences and medicine. It can be referred as fixing intracellular DNA into a bacteria or organism through the vector, thus transforming it. This paper uses plasmid pUC18, self-reproducing circular/spherical strands of genes that may be modified. After the bacteria absorb the vector, some proteins not usually synthesized will occur. In this study, a system has been developed to monitor the transmittance of different DNA (genes) from a genetically transformed strain of Saccharomyces cerevisiae to E. coli. This mechanism is centered on yeast strains that contain several integrated ...

Introduction

Energy is a key driver of any nation’s economy. The extent to which it contributes to the performance of all activities surrounding the human life is beyond measure. This is because energy contributes almost fully to the economic development of the economy. In its physical form, energy is classified either as renewable or non-renewable. Renewable energy forms the green energy that can be reused again and is less toxic to the environment. On the other hand, non-renewable energy is exploited once it’s used and mostly pollutes the environment. All this energy forms can be either used directly ...

Brief information, risk factors and symptoms

Colon cancer, that is also known as colorectal, is a type of cancer that starts from rectum or colon. As any other type of cancer, colon cancer is characterized by uncontrolled growing cells of the body. This type of cancer usually starts with a polyp – a kind of growth on the inner lining of the rectum or colon. However, it is important to know that not all polyps change into cancer, though some of them might do it after several years. The chances that a polyp will become cancer after some, depends on the type of polyps. There are ...

Abstract

Ventilator-associated pneumonia (VAP) is an infection which often develops as a result of poor handling of mechanical ventilation. Such as, poor nursing practice in caring for patients with difficulty in breathing can lead to microorganisms entering patient’s body through a tube inserted especially via mouth and nose of the patient. When these microorganisms get into the respiratory system they cause lung infection which is referred to as ventilator-associated pneumonia (VAP). In preventing this infection, it is important that nurses adopt best practices to reduce the incidence of VAP and provide quality care that is aimed at improving the ...

Panther I.D.:

“The expression of ampicillin resistance and luciferase enzyme genes by E. coli transformation using the pUC18 and lux plasmids” Abstract The transformation process allows the uptake of DNA from the environment, with the incorporation and expression of genes. During this process, changes in the DNA of the receptor cell occur, producing some selective advantages in some cases, such as resistance to antibiotics. pUC18 and lux plasmids were used to determine the transformation process in Escherichia coli. Cells were made competent by the addition of calcium chloride and heat shock in order to induce the incorporation of the ...

Urinary Tract Infections

Introduction Microbes such as bacteria, fungi and viruses are known to be the leading causes of infection. An infection of the urinary tract is associated with the urine formation system. The tract is colonized by several health bacteria. Infective ones are quickly eliminated from the system when available. The parts of the system that can be infected are the bladder a disease called cystitis. Urethritis affects the urethra, and the kidney is pyelonephritis which is caused by the diffuse spread of infectious organisms into the kidneys (Rechtsteiner & Schappert, 2006). The bacteria E. Coli is the primary cause of UTIs. ...

LifeStraw: Science and Technology

LifeStraw is a product developed by the Swiss company Vestergaard Frandsen, which consists of a water filter that removes 99.99% of waterborne bacteria, protozoan parasites and viruses, allowing the user to obtain clean drinking water directly from containers, streams, lakes or other sources of potentially contaminated water. The Oxford Dictionary defines science as the intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment. In order to develop the LifeStraw, scientific experiments were conducted to understand the process of water purification and develop an innovative method ...

Abstract

Permanent magnet synchronous motors (PMSM) are a type of motors that have permanent magnets mounted on the rotors instead of the rotor windings. This particular design gives the motor a few advantages over ordinary induction synchronous motors. The magnets attached to the rotor do not require excitation, which reduces the power consumption in PMSM. This gives the motor high operational efficiency and reduces the motor active diameter. PMSM are therefore associated with applications that require high torque but have limited operation space. The permanent magnets suffer from flux leakage and are therefore aligned in a pattern that minimizes flux ...

1. Every person has his or her right for what they believe in. A person should not be forced to do something. We all have rights and we should stand up for them. As to my opinion it was wrong to command the soldiers to kill and program their minds to do so when they actually did not want to do all of these awful things they have done. They were given orders and had to obey them or they would be shot or sent to court martial if they disobeyed. They had no freedom and no personal choices ...

Introduction

Recently, worldwide obesity prevalence has been raised rapidly and nearly doubled between 1980 and 2014, however in 2014 more than a half a billion of adult (18 years and older) were obese (11% men and 15% women) (WHO, 2014). Obesity and overweight are defined as excess body fat accumulation that leads to health risks and comorbidities. Adult weight can be classified based on the Body Mass Index. Hence, an individual having a BMI equal to or more than 25 is regarded as being overweight, while a person with a BMI equal to or more than 30 is considered obese ( ...

The objective of this experiment was to prepare Beer-Lambert calibration curves for different forms of nitrogen and to determine the concentration of nitrate, nitrite, and ammonia ions in different water samples from the Biscayne Bay.

Introduction

Nitrogen is the most abundant element in the Earth atmosphere. In is not surprising that it is one of the most crucial elements not only to human life but all life on our planet. The chemistry of nitrogen is rather diverse because it can exist in different oxidation levels – from +3 to -5. Due to its large impact on the biosphere, the circulation of ...

[First Last Name]

Philosophy [Number]

[Date Month Year]

Research Question: What should be done about abortion? Thesis Statement: Abortion is impermissible except when performed to save, not to take, life. I. Abortion as a Utilitarianistic Act Mothers who opted for abortion often base their decisions on factors that are favorable to them personally, making their utilitarianist philosophy essentially egoistic. Thus, a mother who opted to perform an abortion is essentially an egoistic utilitarianist. Consequently, utilitarianism suffers from the problem of failing to respect the separateness of persons; that is, that of the mother and that of the unborn child (Jacobson 168). ...

Literature Review on Fracking

Introduction The extraction of natural gas has been seen the much-needed reprieve in the face of increased energy demands globally. The natural gas present unexploited energy reserves that can be used to meet the energy deficits in the countries where there are natural gas deposits. Its extraction requires the use of advanced technologies. Fracking the main technology used in the exploitation of natural gas from the rocks beneath the earth’s surface where it is trapped. The biggest proportion of the new wells for the exploitation of natural gas (90%) utilizes hydraulic fracking as the technology of choice. While ...

Introduction

The fundamental process of thermal power plants is based on the conversion of thermal energy into mechanical energy and, subsequently, into electric power, using steam as the working fluid. According to the U.S. Energy Information System, over 67% of the electrical energy in the United States is generated through thermoelectric power plants, which use the combustion of fossil fuels such as natural gas, coal and petroleum to generate the steam necessary for the process; moreover, thermoelectric power generation accounts for an approximate 80% of all the power generation worldwide. Thus, the electricity consumed in most homes and industries is ...

Myelomeningocele is a very severe form of spina bifida among fetus. It is a condition where the spinal cord fails, making it a very delicate procedure during surgery of a fetus. This is in the sense that it can impact the nervous system, kidneys, bladder, muscles and bones. The only safe and recommended way of treating myelomeningocele is carrying out a surgery on the fetus after birth (Mitchell, et. al., 2004). During delivery of the fetus, the safest and recommended way of carrying out a cesarean section delivery on a pregnant woman is through open fetal surgery, that involves ...

Discussion

Temperature, pH and enzymes are some of the factors that are known to influence the rates of biological reactions (Almeselmani &Moaed et al. 382-3). The action of enzymes (being biological) is controlled by temperature and pH. It was hypothesized that in test tubes 2 and 4, under the influence of temperature, the reactions would be much faster because the molecules moved faster at higher temperatures. However, as attested by the results, with respect to observable color change, test tube 2 did not react to the higher temperature. Test tube 2 remained clear at different temperatures. This was attributed to ...

Scientific Report

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Abstract

The experiment was performed to analyze the outcomes of temperature on the ability of fungal and bacterial amylase to breakdown starch to maltose. Therefore, the study will reveal the optimal temperature for amylase activity. The initial steps include preparing the materials and tools used during the experiment. A timetable for comparing temperature and function was generated. Test tubes and plates were properly labeled. Iodine was needed for every spot plate so that the fungal amylase, bacterial amylase, fungal amylase and the starch solution can be added to the iodine in a time and temperature dependent fashion. Observing ...

ICU Observation Evidence-based Practice

ICU Observation Evidence-based Practice

Introduction of the Patient

The patient goes by the name T.P. A 72-year-old male who’s a retired truck driver. He’s immediate family includes his wife, daughter, and grandson (10 years old who is autistic and has turrets syndrome). He is currently diagnosed with myocardial infarction and altered mental state. The past medical history of this patient shows that he has suffered a lot of diseases including hypertension, diabetes mellitus Type 2, congested heart failure, peripheral neuropathy, CKD-3, CAD, dementia, chronic kidney disease and GERD.

The primary medical diagnosis is myocardial infarction which refers to regional myocardial necrosis ...