A candle (C25H52) is a solid block of wax with an embedded wick‚ which is lit to provide light‚ and sometimes heat‚ and historically as a method of keeping time. Candles have appeared as a source of fine and ultrafine particles in indoor air (e.g. Hussein et al. 2006). Fine et al. (1999)‚ found high Organic Carbon (OC) emissions connected to the extinction of the candle and high EC concentrations when the flame was burning unsteady. In the mid 1800s there were two major developments in the
Premium Hydrocarbon Petroleum Carbon
Validity Validity addresses whether the assessment measures what it is supposed to measure (Gormley‚ 2011; Van der Vleuten‚ 1996). For both the OSCE stations that I have designed‚ I have created a complimentary mark scheme. As discussed previously‚ I opted to produce a global rating scale for the history-taking station and a checklist for the procedural skill station (appendix 1 and 2). Weighting of items can improve validity of a checklist‚ which can affect which trainees pass or fail (Sandilands
Premium Medical school Assessment Competence
52 SJWEH Suppl 2008‚ no 6 Validity and reliability of the job content questionnaire in formal and informal jobs in Brazil by Tânia Maria de Araújo‚ PhD‚1 Robert Karasek‚ PhD 2 de Araújo TM‚ Karasek R. Validity and reliability of the job content questionnaire in formal and informal jobs in Brazil. SJWEH Suppl. 2008;(6):52–59. Objectives This study evaluated the job content questionnaire (JCQ) in measuring work psychology aspects with respect to formal and informal jobs in Brazilian occupational
Premium Management Marketing Costs
Exam-type questions on Thrust Bearing design 1. You have been asked to design a minimum power-loss‚ uni-directional‚ thrust bearing for an horizontally-mounted‚ axial‚ ammonia compressor in a nitric acid plant. The compressor has a shaft diameter of 100 mm and generates a thrust of 15kN when operating at 6‚000 rpm. The thrust is negligible at zero speed. a. What type of thrust bearing would you recommend and why? b. What are the physical reasons why a dry‚ PTFE bearing would
Premium Bearing Ball bearing Orders of magnitude
Validity is about the extent to which a piece of research in finding out what the research is finding out what the researcher intents to find out. The idea of validity means that something is true and can be believed. When people say ‘that’s a valid point”‚ they mean that the point is relevant‚ meaningful and believable. It is concerned with truth and value‚ that is whether conclusions are correct or not. It also considers whether the method‚ approaches and techniques actually relate to what is being
Premium Validity Scientific method Research
Reliability and Validity Ebony Johnson University of Phoenix Reliability has to do with the quality of measurement and is the consistency of repeatability of measures. To define it precisely researchers first have to learn about the foundation of reliability- the true score theory of measurement. Then researchers need to understand the different types of measurement error because they play a key role in degrading reliability. Because reliability can only be estimated there are different types
Premium Psychometrics Measurement Validity
Discuss issues of reliability and validity associated with the classification and diagnosis of phobic disorders (8 + 16 marks) A phobia is a persistent fear that is excessive or unreasonable which must meet a set of criteria given in the DSM. A clinical diagnosis is made if there is no other possible physiological cause and if the symptoms cannot be better accounted for by another disorder. The individual also recognises their behaviour is unreasonable and the severity of the fear interferes with
Premium Fear
<center><b>By close reference to "More Than Just The Disease"‚ show what feelings you have for Neil in the course of the story. What lessons do you suppose he has learned by the end of it?</b></center> <br> <br>In the story‚ "More than Just the Disease"‚ Neil who was away from home for a holiday with the Middleton family experienced and learned much. The best part was how Neil managed to take the first step of overcoming his shyness‚ not to "suffer from more than just the disease". <br> <br>At the
Premium
Contents Dedication Part 1 Childhood years Was I ever wanted? Is love always confusing? Why Me? The Dark Summer. Am I only here for others to hurt? Now you must grown up. Losing the only one that loved me. Part 2 Teenage years Will life ever get better? Now I know why. You’re in the Army now Part 3 Adult years Is it always about what you want? Life gives life. Don’t believe everything you see and feel. Part 4. Is this what I was born to be‚ a punchingbag for everyone? The
Premium Debut albums 2008 singles Family
affective empathy and cognitive empathy‚ and the pros and cons of both in his article‚ “The one thing that could save the world: Why we need empathy more than ever.” Krznaric provides factual and scientific evidence after every point‚ leaving a greater impact on the reader. Furthermore‚ his references to powerful and influential people make his article all the more persuasive. Krznaric quotes a Yale psychologist‚ Paul Bloom‚ with whom I strongly
Premium Psychology Emotion Mind