The Content Domain Of Interest - 1630 Words

In order to determine the content domain of any given test, the developer needs to first define the construct that they wish to measure and then identify specific content that contains their domain of interest. To do this, a literature search and source materials are often located so that the developer can sample appropriate content from the materials (Griffith, 2017). As part of the methods used in this case, the reliability material was research using two sources of content: (1) the class textbook called Psychological Testing: Principles, Applications, and Issues (Kaplan Saccuzzo, 2013); and (2) the lecture from the third week of class on reliability (Griffith, 2017). These two sources of content were selected primarily because they†¦show more content†¦The Process by Context Matrix in this case is made up of two sources of information by which the content area would be sampled, including chapter 4 of the class textbook entitled Psychological Testing: Principles, Applicat ions, and Issues (Kaplan Saccuzzo, 2013) and the class lecture on reliability from the third week of the semester (Griffith, 2017) as both of these sources discussed the concept of reliability in detail. From there, the Process by Content Matrix was used to select and formulate the exact number of question items that not only complied with the items of knowledge, principle, and application but were drawn specifically from only these two sources to ensure fairness and validity in testing according to the assigned materials this class for this specific semester. More importantly, the Process by Content Matrix relays a framework or outline of the necessary content and sources required to effectively and systematically develop the test items to measure the concept that is meant to be tested, thereby improving the overall reliability as well. Please refer to Appendix A for more information on the matrix used in the development of this particular test on the concept of reliability. Item Development Although the item writing process in content-valid test development can be a rather difficult, there are a number of things to keep in mind during the itemShow MoreRelatedThe Danielson Framework For Teaching1378 Words   |  6 Pagesto the INTASC standards, and grounded in a constructivist view of learning and teaching. The complex activity of teaching is divided into 22 components (and 76 smaller elements) clustered into four domains of teaching responsibility† Each component defines a different aspects of its respective domain. Levels of teaching evaluation tools provide rubrics that describe each component and provide a tactic for improving teaching. The Danielson group also states that â€Å"the framework may be used as theRead MoreCurriculum Objectives For Academic Standards902 Words   |  4 Pagesteachers, and schools are expected to recognize. Content standards define the understanding and abilities that students should conquer. The content standard s are relaxingly known as â€Å"what† students should know and be able to do. They specify the methods of thinking, working, communicating, reasoning, and investigating the significant and lasting concepts, subjects, and dilemmas. Content standards define what every student should be able to do. Content standards are of abundant significance. WithoutRead MoreThe Framework For Teaching By Charlotte Danielson1413 Words   |  6 Pagesenvironment, instruction and professional responsibilities. 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Although the restaurant may be privately owned, its success dependsRead MoreMini-Systematic Review For Multi-Systematic Review804 Words   |  4 Pagesspecific study that addresses how research reflects the doctoral level domains (Gla dding, 2013). The 2016 standards provide a clear premise for research in each area and articles published within the last 15 years research has not addressed the extent to which the domains are covered in peer-reviewed journals. Since these standards are important to doctoral counselor education, research should be geared towards these domains. The mini-systematic review addresses the quality of doctoral programRead MoreThe Role Of Advice To Small Business1159 Words   |  5 Pagespotential for a conflict of interest. That is, I would not assist a business with an application, now or in the future, whilst my duties as a public service employee would create an actual or perceived conflict of interest. This extends to respecting the confidentiality of official information should I leave public service employment. Further Considerations In response to the statement that I have continually failed to provide full and frank details about my interest in Entrepreneurial Edge â€Å"despiteRead MoreAssessment Of Teaching Clinical Journal874 Words   |  4 PagesAssessment of Teaching Clinical Journal Theory-Driven Lesson Plan Introduction In the following lesson I combined my students’ interests mixed with theory I have read about to create an interdisciplinary classroom activity. The lesson I created is math content based with a special education sixth grade class. The specific unit of study is solving equations and specific vocabulary attached to this unit is: variable, constant, inverse, and solution. Through this lesson my students are going toRead MoreUniform Resource On The Internet Essay1491 Words   |  6 Pagesa website. The resource name consists of: - ïÆ'Ëœ A domain name identifying a server or the web service; and ïÆ'Ëœ A program name or a path to the file on the server. ïÆ'Ëœ As a network port to use in making the connection. ïÆ'Ëœ As a specific reference point within a file -- a named anchor in an HTML (Hypertext Markup Language) file. A website URL or domain name is one of the most important parts of the website. It enables visitors to view the contents of a website. Use of URL: - URL is nothingRead MoreA Survey On Data Annotation For Web Databases1020 Words   |  5 Pagesfield that related to the retrieval of the relevant web page results based on the user interest and preferences. ARUNPANDI.V, SUNDARAMOORHTY.S, VARADHARAJAN.E [18], proposed the personalization involve in collecting the user interests implicitly or explicitly called as user profile. Collecting the user interests in explicit manner is not so easy. Because the users are not interested to provide their interest to the server. So we go for other methods to create user profile in implicit manner. WeifengRead MoreEntrepreneurial Edge : A Business Report1264 Words   |  6 PagesIt is alleged that since April 2017 I have failed to provide full and frank disclosure to the Department regarding my interest in my business ‘Entrepreneurial Edge’. Specifically that my response of 29 May 2017 that the proposed services of Entrepreneurial Edge were ‘undetermined’ is at odds with: 1. my previous comments to Ms Freeman on 5 April 2017 that the purpose of the business will be to ‘connect businesses with consultants’, noting that Ms Freeman’s recollection has been put to me on at

Who Is The Top Birthing A Seasoned Successful Essay

Have you ever wondered what it was like coming from a low-income family? To struggle financially but somehow managed to overcome every obstacle faced resulting in success along with continued success? Well I know I did; in order to further educate myself on what the life of an African American man whose family immigrated from Somalia to provide a more fulfilling life with plenty of opportunities to become someone great. Although the road to success was not easy, David King made it happen. He went through adversities where at times he did not believe he would be able to make it, within those moments of defeat and failure David arose to the top birthing a seasoned successful 40-year-old man whom shared his amazing story with me. What is admiring about David that I took out of this interview is his ambition to always be one step ahead, as well as to working hard to become a better version of himself. Despite not having the push he felt he needed to become this successful he managed to m ake it all happen with some help from people he has encountered in his life time. Currently, David is happily married balancing working on his career in Social Work working with the LGBT community more specifically the LGBT youth, while raising three kids and maintaining his home in Long Island. â€Å"It is not easy, and at times it can be overwhelming. The best advice I give to the people I come into contact with is to always remember to make time for yourself; that is how I survive, always find a

Health Effects of Electromagnetic Radiation in Cellular Phones Free Essays

HEALTH EFFECTS OF EM RADIATION IN CELLULAR PHONES Health effects of EM radiation in cellular phones Part 1 ( Identifying a Subject ) Identified subject isHealth effects of EM radiation in cellular phones Cellular phones communicate via wireless frequence ( RF ) transmittal in a web dwelling of aerials or base Stationss. The term â€Å"cellular telephone† refers to the localized or fragmented nature of the overall web. Base Stationss provide connexion for a little part. We will write a custom essay sample on Health Effects of Electromagnetic Radiation in Cellular Phones or any similar topic only for you Order Now The webs used in nomadic telephone following four chief criterions viz. GSM, WCDMA, UMTS, and LTE ( Nair and Morgan 89 ) . Antennas every bit good as the nomadic French telephone are two beginnings of electromagnetic radiation ( EMR ) . Radiation from the aerial is typically low but that from the French telephone is more intense. There are many beginnings of electromagnetic radiation and this radiation has magnetic every bit good as electric Fieldss. The survey of the magnetic every bit good as electric Fieldss has many enormous benefits to humanity. It allows applied scientists to utilize radiation for practical and safe applications. Electromagnetic radiation is measured in wavelength as the diagram below shows. img alt="" src="https://s3-eu-west-1.amazonaws.com/aaimagestore/essays/1533416.001.png"/ [ beginning: Oatley 56 ] The longer wavelength has low energy, the shorter wavelength has more energy, and therefore a possible beginning of ionising radiation. The nomadic phone system falls about halfway along the spectrum. The energy is the beginning of ionising consequence that causes malignant neoplastic disease when in contact with human organic structure. This subject relates to the primary constructs of the class because it deals with electromagnetic radiation. I found this subject interesting because on one manus, it deals with application of electromagnetisms in communicating and on the manus possible wellness impact of users. I feel that in this instance, engineering is seen as a double-edged blade. Lifes of one million millions of people in the universe have changed due to acceptance of cellular devices. However, there are lingering inquiries about the safety of the devices. Part two ( study ) Health effects of EM radiation in Cellular Telephones Topic Overview and Background Globally, more than 6.9 billion people use nomadic phones. Harmonizing to International Agency for Research on Cancer, the electromagnetic Fieldss produced by cellular phones are perchance carcinogenic. This averment is non universally accepted and more research is being carried out to find how nomadic phones are. World wellness organisation ( WHO ) is expected to carry on formal hazard appraisal following twelvemonth to find the full impact of exposure to cellular phones electromagnetic Fieldss. None of the modern engineerings is every bit omnipresent as cellular phone. In some states, more than half of the population uses a nomadic phone device. The figure of cellular phone devices in the universe is expected to make a astonishing 9 billion by 2020. Most of the new proprietors will come from developing states where fixed telephone was nonexistent before the debut of nomadic phones. Given the big figure of phones in the market, every bit good as broad acceptance, it is of import to understand the impact of cellular radiation on human wellness. Cellular phones transmit wireless waves through a web of base Stationss. The base Stationss are basically antennas. The wireless frequence moving ridges transmitted are electromagnetic Fieldss, which are non ionising like X raies or gamma beams. Cellular phone wireless frequence moving ridges can non interfere with the body’s chemical bonds. Electromagnetic radiation released by cellular phone is a signifier of radiation though non-ionizing one. It is thought that the heat absorbed by the organic structure cells and tissues trigger unnatural cell divisions merely like ionising radiation does. Radiation is unsafe to human wellness. From laboratory surveies, radiation mutagenesis causes DNA omissions, DNA misrepair, and DNA misrecombination. Ionizing radiation causes dual strand in DNA to interrupt. A survey carried out on spacemans suggest that they are exposed to radiation degrees of about 147.5 mSv which causes additions frequence of chromosomal aberrances after flight to infinite ( David 34 ) . These aberrances are minimum or absent before the flight. This suggests that chromosomal aberrances can be straight attributed to cosmic radiation in infinite. Scientists have long thought that one time radiation hits the cell, the Deoxyribonucleic acid is damaged and job merely occurs when the cell is unable to to the full mend the harm. However, emerging grounds suggest that when cells are exposed to radiation, it produces genomic instability. This means that radiation causes harm that merely becomes seeable in future coevalss. Cellular phones are radio frequence senders and they operate 450 and 2700 MHz at their extremum within the scope of 0.1 to 2 Wattss. Transmission occurs merely when the device is turned on. Exposure to the electromagnetic beams depends on the distance between the user and the device. As the distance between the French telephone and a individual additions, exposure to radio frequence starts to fall quickly. When a device is for illustration 30 centimetres from the organic structure as is the instance when a user is directing message or shoping the cyberspace, exposure to electromagnetic Fieldss is significantly low. For minimal exposure, the best cellular phones are the custodies free 1s. Hands free cellular phones allow the user to pass on when the phone is at a safe distance from the organic structure. In add-on to utilizing custodies free devices, exposure to radio frequence radiation is low when doing a call in an country with good response. The quality of response determines the sum of power used by phone and the low the power the lower the exposure to radio frequence field exposure. In infirmaries aeroplanes, cellular phones are prohibited because they can interfere with some medical and navigation equipments. Health effects of EM radiation in Cellular Telephones The wellness hazard of nomadic phone usage have been studied extensively in the last 20 old ages and research workers have non been able to set up once and for all that the usage of cellular phones exposes users to put on the line of malignant neoplastic disease or other medical conditions. The chief mechanism through which the wireless frequence energy interacts with the both is tissue heating. When wireless frequence energy is in big sums, organic structure tissues can potentially heat up therefore enduring injury. Cellular phones releases low wireless frequence energy and therefore the tegument absorbs most of the energy released or other tissues found on the surface of the organic structure. Consequently, cellular energy released consequences in really small temperature rise in the encephalon or any delicate variety meats. Beyond heating organic structure tissues, scientists have besides focused on possible intervention of organic structure cardinal mechanism and the consequences have been negative. Cellular phones wireless frequence Fieldss do non interfere with electrical activity inside the encephalon, sleep form, cognitive map, or blood force per unit area. Theoretically, wireless frequence energy at high degrees should interfere with the organic structure maps but at low degrees, it appears safe. wireless frequence energy at degree below that can do tissue heating have no impact on voluntaries studied by research workers in many surveies. One country of concern that has been studied intensively is symptoms of electromagnetic hypersensitivity that some people have reported. Surveies on these instances suggest that there is no causal relationship between the usage of cellular phones and development of electromagnetic hypersensitivity status. In the short squad, cellular phones frequence Fieldss appear to be harmless, at least harmonizing to surveies carried out so far. However, there are concerns that there is harm below the degree that can non be perceived in the short term. Surveies looking at the long-run hazard of wireless frequence field exposure examine possible association between encephalon tumour and usage of cellular devices. These types of surveies have been impeded by the fact that nomadic phones became widespread merely a decennary ago. Cancers typically show up many old ages after the event that led to abnormal cell division that lead to malignant neoplastic disease. Research workers focus on instances that become apparent after short periods. Harmonizing to International Agency for Research on Cancer ( IARC ) , nomadic phone usage does non increase the hazard of developing conditions such as glioma or meningioma ( Herman 56 ) . These conditions have non increased significantly in the last 10 old ages since the debut of Mobile. This indirect grounds appear to propose that even in the long term, the hazard of developing malignant neoplastic diseases is low. IARC consider radiofrequency electromagnetic Fieldss as carcinogenic although there is deficiency of surveies that have positively linked radiofrequency energy with malignant neoplastic disease. Lack of information is straight attributable to the fact that cellular phones have merely been in usage for a few old ages whereas malignant neoplastic disease develops over a long period. It is thought that the issue will be clearer with clip as younger coevals that has grown up utilizing cellular phones mature holding been exposed to phone radiation for decennaries. My Personal Interest in the subject I am interested in this subject because it deals issues associating to electric, magnetic Fieldss, and possible wellness consequence after usage for a drawn-out period. As a cellular phone proprietor, I have been, like everyone else, concerned about the hazard it exposes to my wellness. Plants Cited Nair, Indira, and M. Granger Morgan.Biological Effectss of Power Frequency Electric and Magnetic William claude dukenfields. Washington, DC: Congress of the U.S. , Office of Technology Assessment: , 1989. Print. Oatley, Charles William.Electric and Magnetic William claude dukenfields: An Introduction. Cambridge: Cambridge UP, 1976. Print. Herman, Peter.Possible Health Effectss of Exposure to Residential Electric and Magnetic William claude dukenfields. Washington, D.C. : National Academy, 1997. Print. David, John. Science, Engineering.Health Effectss of Low-frequency Electric and Magnetic William claude dukenfields. Oak Ridge, Tenn. : Oak Ridge Associated Universities ; , 1992. Print. How to cite Health Effects of Electromagnetic Radiation in Cellular Phones, Essay examples

Cat Dissection Structures free essay sample

Healthy kidneys make hormones such as renin and angiotensin. These hormones regulate how much sodium (salt) and fluid the body keeps, and how well the blood vessels can expand and contract. This, in turn, helps control blood pressure. They do this by regulating: †¢ The amount of water in the body. If there is too much water in the body (fluid overload) blood pressure will go up. If there is too little water in the body (dehydration) the blood pressure will drop. †¢ The width of the arteries. The arteries constantly change in width as blood flows through them. The narrower the arteries, the higher the blood pressure. Renin helps control narrowing of the arteries. Failing kidneys often make too much renin. This raises blood pressure. If your blood pressure is high, your heart is working harder than normal to pump blood through your body. High blood pressure (also called hypertension) caused by a breakdown in these functions is common in people with kidney failure. We will write a custom essay sample on Cat Dissection Structures or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page It is also a complication, a secondary condition caused by kidney failure. †¢ RBC production? o The urinary system controls red blood cell production by secreting the hormone erythropoietin. . What structures enter or exit at the hilum of the kidney? †¢ Ureters, renal blood vessels, lymphatics, and nerves enter and exit at the hilum Know the anatomy of the kidney so that you could recognize the following parts from a description or on a diagram: capsule, hilum, renal artery, renal vein, ureter, cortex, medulla, papillae, renal columns, minor and major calyces, renal pelvis. The Kidney is bean-shaped and located in the lumbar region of the body. The kidney is described as being Retroperitoneal-that is, it is located between the dorsal body wall nd the parietal peritoneum. 1. An average human kidney weighs about 5 ounces. 2. Sitting on top of each kidney is a single adrenal gland that essentially has no influence on the kidney. B. The Renal Hilum-vertical cleft on the medial surface of the kidney, that leads into an internal space within the kidney known as the Renal Sinus. 1. The ureter, the renal blood vessels, lymphatics and nerves all join each other at the hilum and occupy the renal sinus. C. There are Three Layers of Support Tissue Surrounding each kidney. The layers are: 1. The Fibrous Capsule-a capsule-like layer that prevents infections in surrounding regions from spreading to the kidney. 2. The Perirenal Fat Capsule-a thick layer of adipose tissue that attaches the kidney to the posterior body wall and cushions it against blows. 3. The Renal Fascia-an outer layer of fibrous connective tissue that anchors the kidney and adrenal glands to surrounding tissues.   Three Distinct Internal Segments in the Human Kidney: 1. The Renal Cortex-light colored, superficial region of the kidney. This area has a granular appearance. . The Renal Medulla-a dark red or brown colored region in the kidney. The medulla contains cone-shaped areas known as the Medullary or Renal Pyramids. a. The base of each pyramid faces towards the cortex and the apex (Papilla) points internally. b. The pyramids contain bundles of microscopic urine-collecting tubules and capillaries. Structures known as the Renal Columns separate the pyramids from each other. c. Each pyramid and its surr ounding tissue makes up one of eight lobes of a kidney. 3. The Renal Pelvis-a funnel-shaped tube that is continuous with the ureter leaving he hilum. a. Branching extensions of the Pelvis form two or three Major Calyces, each of which subdivides to form several Minor Calyces. b. The Minor Calyces are cup-shaped areas that enclose the papillae of the pyramids. 1) The calyces collect urine, which drains from the papillae, and empty into the renal pelvis. The urine then flows through the renal pelvis and into the ureter which moves it to the bladder where it is stored. 2) Smooth muscle lines the walls of the calyces, the pelvis and the ureter. Urine is pushed through these areas via peristalsis. In what part of the kidney are most of the nephrons located? Renal Cortex 4. Blood supply of the kidney: †¢ Branch of aorta that enters kidney is the renal artery, which divides several times as it moves toward the cortex. †¢ At the base of the renal pyramids, the arcuate arteries branch into interlobular arteries that branch into afferent arterioles that deliver blood to the glomerulus. †¢ The efferent arterioles exit the glomerulus and give rise to the peritubular and vasa recta capillaries surrounding the renal tubule. Secretion and reabsorption occurs between the tubule and bloodstream in these capillaries.