...or bilateral hearing loss, with tinnitus. In some cases, the hearing loss may improve after a few days4. Such a reversible elevation of auditory threshold produced by noise exposure is known as Temporary Threshold Shift (TTS). However, permanent exposure to intense noise damages the outer hair cells, especially those on the cochlear basal turn, very likely because this is the area of the organ which is more constantly stimulated5. This produces an irreversible elevation of auditory threshold following noise exposure associated with permanent pathological changes in cochlea known as Permanent Threshold Shift (PTS). The extent and the grade of the hearing damage has a direct relation with the sound pressure intensity, duration in time, frequency and the greater or lower susceptibility of the individual, which can cause changes to the hearing threshold, or noise-induced-hearing-loss (NIHL) which, just like the acoustic trauma, is irreversible. NIHL is a sensorineural hearing loss, which initially involves the frequency range between 3 and 6 kHz, where the 8 kHz has to be better than the worst threshold (3, 4 or 6 kHz)6, 7. This loss affects mainly the cochlear hair cells, situated at about 5 to 10 mm off the vestibular window, exactly on the region receiving the 4 to 6 kHz stimuli. The causes for the greater vulnerability of this region have not yet been fully explained, but they may be associated with the resonance characteristics of the outer ear (OE) and of the middle ear (ME)...
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...BTEC Level 3 National Health and Social Care uncorrected first proofs issued by marketing 2010. This material is © Hodder Education 2013 and should not be redistributed. Contents Walkthrough About the authors and Photo credits Core units vii ix Unit 1 Developing Effective Communication in Health and Social Care Understand effective communication and interpersonal interaction in health and social care Understand factors that influence communication and interpersonal interaction in health and social care environments Understand ways to overcome barriers in a health and social care environment Be able to communicate and interact effectively in a health and social care environment 1 2 13 15 18 Unit 2 Equality, Diversity and Rights in Health and Social Care Understand concepts of equality, diversity and rights in relation to health and social care Know discriminatory practices in health and social care Understand how national initiatives promote anti-discriminatory practice Know how anti-discriminatory practice is promoted in health and social care settings 21 21 30 34 39 Unit 3 Health, Safety and Security in Health and Social Care Understand potential hazards in health and social care Know how legislation, policies and procedures promote health, safety and security in health and social care settings Be able to implement a risk assessment Understand priorities and responses in dealing with incidents and emergencies 44 45...
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...characteristics of typical and atypical human growth and development and the characteristics of students with various disabilities that special education teachers are likely to encounter. The test includes a wide range of multiple-choice questions that address Competency 1. * Questions on typical and atypical behaviors and abilities for children and adolescents at particular ages. * Questions on the types and characteristics of various disabilities. * Questions on the similarities and differences among students with and without disabilities. This competency encompasses the following content: ► Demonstrate knowledge of characteristics of typical and atypical human growth and development in various domains (e.g., cognitive, speech/language, social/emotional, physical): Important to this competency is recognizing when a child’s growth or development differs enough from typical patterns to warrant further evaluation by specialists. You will be expected...
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...UNIT 1 SCHOOL TALKS A. MULTIPLE CHOICES: I/ Choose the word whose underlined part has a different pronunciation from the others in each group: 1/ A. chemist B. change C. child D. cheap 2/ A. fork B. world C. sport D. north 3/ A. plenty B. fairy C. sky D. weekly 4/ A. feather B. head C. healthy D. meat 5/ A. much B. cute C. cut D. sun 6/ A. soften B. fifteen C. enter D. party 7/ A. now B. how C. know D. down 8/ A. this B. mine C. file D. night 9/ A. when B. settle C. become D. fellow 10/ A. where B. here C. fear D. dear II/ Choose the word whose main stress is placed differently from the others in each group: 1/ A. headmaster B. holiday C. attractive D. internet 2/ A. matter B. happen C. listen D. below 3/ A. explain B. problem C. study D. worry 4/ A. habit B. become C. learner D. mother 5/ A. fifteen B. fifty C. center D. biggest 6/ A. student B. member C. prefer D. teacher 7/ A. subject B. hello C. teacher D. thousand 8/ A. lesson B. woman C. repair D. father 9/ A. above B. sister C. widen D. very 10/ A. corner B. answer C. doctor D. prepare III/ Select the synonym of the following bold and underlined word in each sentence in the unit: 1/ When you meet your friends, which topic do you often talk about? – Films. A. plays B. movies C. theatres D. stories 2/ I study in class 10A with forty-five other students. A. learn B. teach C. instruct D. review 3/ I study many subjects such as Math, Physics, Chemistry, Biology, Vietnamese Literature, History...
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...62118 0/nm 1/n1 2/nm 3/nm 4/nm 5/nm 6/nm 7/nm 8/nm 9/nm 1990s 0th/pt 1st/p 1th/tc 2nd/p 2th/tc 3rd/p 3th/tc 4th/pt 5th/pt 6th/pt 7th/pt 8th/pt 9th/pt 0s/pt a A AA AAA Aachen/M aardvark/SM Aaren/M Aarhus/M Aarika/M Aaron/M AB aback abacus/SM abaft Abagael/M Abagail/M abalone/SM abandoner/M abandon/LGDRS abandonment/SM abase/LGDSR abasement/S abaser/M abashed/UY abashment/MS abash/SDLG abate/DSRLG abated/U abatement/MS abater/M abattoir/SM Abba/M Abbe/M abbé/S abbess/SM Abbey/M abbey/MS Abbie/M Abbi/M Abbot/M abbot/MS Abbott/M abbr abbrev abbreviated/UA abbreviates/A abbreviate/XDSNG abbreviating/A abbreviation/M Abbye/M Abby/M ABC/M Abdel/M abdicate/NGDSX abdication/M abdomen/SM abdominal/YS abduct/DGS abduction/SM abductor/SM Abdul/M ab/DY abeam Abelard/M Abel/M Abelson/M Abe/M Aberdeen/M Abernathy/M aberrant/YS aberrational aberration/SM abet/S abetted abetting abettor/SM Abeu/M abeyance/MS abeyant Abey/M abhorred abhorrence/MS abhorrent/Y abhorrer/M abhorring abhor/S abidance/MS abide/JGSR abider/M abiding/Y Abidjan/M Abie/M Abigael/M Abigail/M Abigale/M Abilene/M ability/IMES abjection/MS abjectness/SM abject/SGPDY abjuration/SM abjuratory abjurer/M abjure/ZGSRD ablate/VGNSDX ablation/M ablative/SY ablaze abler/E ables/E ablest able/U abloom ablution/MS Ab/M ABM/S abnegate/NGSDX abnegation/M Abner/M abnormality/SM abnormal/SY aboard ...
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