which toefl study guides and practice tests are worth your time
rfid+ study guide and practice exam
Ngày tải lên :
01/06/2014, 12:53
... that electric and magnetic fields in an EM wave are also perpendicular to each other NOTE Electric fields and magnetic fields (E and B) in an EM wave are perpendicular to each other and are also perpendicular ... Monitoring and Troubleshooting Hardware 261 Understanding the Causes of Hardware Failures 262 Diagnosing RFID Hardware Failures 262 Standard ... U.S Department of Defense and Wal-Mart in their mandates, and in a flurry of industrial mandates that followed Now armed with these mandates, government legislations, and the resulting hyperbole,...
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English Grammar in Use: A Self-study Reference and Practice Book for Intermediate Students of English doc
Ngày tải lên :
06/07/2014, 23:20
... long as and provided/providing 115 As (reason and time) 116 Like and as 117 As if 118 For, during and while 119 By and until By the time Prepositions 120 At/on/in (time) 121 On time/ in time At ... deals with the point you are interested in If you are not sure which units you need to study, use the Study guide on page 301 Study the explanations and examples on the left-hand page of the unit ... stopped and we had a chat Compare: * When Karen arrived, we were having dinner (= We had already started dinner before Karen arrived.) * When Karen arrived, we had dinner (= First Karen arrived and...
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Transoesophageal Echocardiography study guide and practice mcqs phần 1 docx
Ngày tải lên :
14/08/2014, 01:20
... provide accurate and up-todate information which is in accord with accepted standards and practice at the time of publication Although case histories are drawn fromactual cases, every effort has ... cardiologists and cardiac surgeons Andrew Roscoe is a consultant in cardiothoracic anaesthesia at Wythenshawe Hospital in Manchester, UK Transoesophageal Echocardiography Study Guide and Practice ... patients for non-cardiac surgery and the intensive care setting Specific accreditation is required prior to practice of TOE/TEE involving a written examination and a documented logbook of experience...
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Transoesophageal Echocardiography study guide and practice mcqs phần 2 pot
Ngày tải lên :
14/08/2014, 01:20
... factor (DF) DF = percentage of ‘on’ time compared to PRP Units = % Changed by sonographer by changing ‘off’ time TOE DF = 0.1–1% (i.e lots of ‘off’/listening time) DF = PD/PRP ↑DF by: ↑PRF (more ... start of one pulse to start of next pulse Units = s PRP = ‘on’ time (PD) + ‘off’ time (Fig 1.5) Changed by sonographer by changing ‘off’ time TOE PRP = 0.1–1 ms PRP (µs) = 13 × depth (cm) Spatial ... has different I at different points in time (Fig 1.7) Peak I = temporal peak (TP), i.e ‘on’ time Average I = temporal average (TA), i.e average of ‘on’ and ‘off’ For CW: TP = TA (3) Pulse – U/S...
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Transoesophageal Echocardiography study guide and practice mcqs phần 3 ppsx
Ngày tải lên :
14/08/2014, 01:20
... localized areas of heart and analysing time- related events 2-D imaging Multiple narrow beams of pulsed U/S B mode can be moved through path by sonographer to create 2-D picture, but slow and patient ... various patterns, which focus and steer U/S pulse Fan-shaped image Many signals excite multiple crystals → one sound pulse If one element breaks → erratic focusing/steering Small time delays (nearly ... Requires: sequential acquisition of 2-D data from multiple planes digitization of data and off-line reconstruction Time- consuming Instrumentation Six components: Transducer (TX) Pulser Receiver Display...
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Transoesophageal Echocardiography study guide and practice mcqs phần 4 pot
Ngày tải lên :
14/08/2014, 01:20
... less then ◦ C C in transient cavitation, bubbles expand and burst D thermal index is the quantification of tissue heating E focused beams are considered safe if the intensity is less than kW/cm2 ... crystals are made from quartz D the damping element improves temporal resolution E the matching layer has a lower impedance than the crystal The following statements about sound beams are true ... is poor for analysing time- related events E is developed from B mode imaging 19 Pulse wave Doppler A suffers from ‘range ambiguity’ artefact B requires one crystal to emit and a second crystal...
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Transoesophageal Echocardiography study guide and practice mcqs phần 5 ppt
Ngày tải lên :
14/08/2014, 01:20
... veins Four veins: right–upper and lower (RUPV and RLPV) left–upper and lower (LUPV and LLPV) 2% population have > PVs from right lung Doppler flow composed of S, D and A waves (Fig 3.20) S wave ... < TMF because RV Cn > LV Cn Normal anatomy and physiology Respiration Greater influence on TTF compared to TMF On inspiration → TTF increases ↑E Vmax and A Vmax by ≈ 15% E/A ratio remains constant ... (largest) from moderator band posterior and septal (small) TVL = continuous veil of fibrous tissue indentations = commissures Septal TVL insertion infero-apical compared to anterior TVL 61 62...
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Transoesophageal Echocardiography study guide and practice mcqs phần 6 potx
Ngày tải lên :
14/08/2014, 01:20
... walls seen from the standard two chamber view (at 90◦ ) are A inferior and lateral B anterior and lateral C posterior and anteroseptal D inferior and anterior E septal and lateral Normal right ... following three coronary cusps A left, right and anterior B left, right and posterior C anterior, posterior and nonD superior, inferior and nonE left, right and nonThe normal maximum velocity measured ... there is an anterolateral and a posteromedial commissure D chordal structures arise from the papillary muscles and attach to the ventricular surface of both the anterior and posterior leaflets E...
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Transoesophageal Echocardiography study guide and practice mcqs phần 7 pdf
Ngày tải lên :
14/08/2014, 01:20
... size and systolic function Restriction to RV and LV filling Echo-dense RV and LV walls Amyloidosis Deposition of abnormal proteins between myocardial fibres, in PMs, in conductive tissue and in ... pericardium Increased RV and LV wall thickness ‘Speckled’/granular appearance RV/LV size and systolic function normal Biatrial dilatation Diffuse valvular thickening (MV and TV) Small/moderate ... gradient (MG) and mitral valve area (MVA) Severity MG (mmHg) MVA (cm2 ) Normal Mild Moderate Severe 12 4–6 2–4 1–2
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Transoesophageal Echocardiography study guide and practice mcqs phần 8 potx
Ngày tải lên :
14/08/2014, 01:20
... pressure half -time of 220 ms is mild stenosis E pressure half -time of 110 ms gives an approximate tricuspid valve area of 2.2 cm2 The following statements regarding tricuspid regurgitation are all ... Severe >4.5 cm (2) Jet area Trivial 10 cm2 (3) Jet length/RA length Mild 66% (4) Jet area/RA area Mild < 33% Moderate ... Ionescu–Shiley bovine pericardium calcification/abrasions → stenosis and regurgitation duration ∼ 5–10 yrs Mechanical valves (1) Ball -and- cage: Starr–Edwards Double cage with silastic ball Haemolysis...
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Transoesophageal Echocardiography study guide and practice mcqs phần 9 pdf
Ngày tải lên :
14/08/2014, 01:20
... septal defects (ASDs) A 70% are primum ASDs B 20% are secundum ASDs C 17% are sinus venosus ASDs D secundum ASDs occur low in the interatrial septum E primum ASDs are due to incomplete fusion ... of crista supraventricularis (Fig 8.2) Immediately inferior to PV and AV (LCC and RCC) = infundibular VSD Infracristal Inferior and posterior to crista supraventricularis (Fig 8.2) (1) Membranous: ... occur on the high pressure side of valves D right-sided vegetations are usually larger than left-sided E bacterial vegetations are usually larger than fungal ones 121 Congenital heart disease Valve...
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Transoesophageal Echocardiography study guide and practice mcqs phần 10 pptx
Ngày tải lên :
14/08/2014, 01:20
... (AI) Viscous friction Haemodynamic calculations Flow Flow = Area × Velocity SV = Area × VTI Aortic valve Aortic stenosis P = 4V AVA = AreaLVOT × VmaxLVOT / VmaxAV AVA = SVAV / VTIAV Aortic incompetence ... Mitral stenosis P = 4V MVA = 220/PHT MVA = AreaLVOT × VTILVOT /VTIMV MVA = 6.28r × α 180 × Valias / VmaxMV Mitral regurgitation RV = (AreaMV × VTIMV ) − (AreaLVOT × VTILVOT ) RF = SVMV − SVLVOT ... Wallace, L In Annual Comprehensive Review and TEE Update: Clinical Decision Making in the Cardiac Surgery Patient, 2003 Weyman, A E (ed.) Principles and Practice of Echocardiography, 2nd edn Philadelphia:...
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Practice Tests in Grammar,Writing, and Reading Comprehension
Ngày tải lên :
02/11/2013, 17:20
... afternoon of work shared by a son and his father So, for hours my dad and I worked We cleared out and sorted all the junk, ripped down the 106 That evening my dad said, “You have good hands.” That little ... CHAPTER • LearningExpress Skill Builders PRACTICE TESTS IN GRAMMAR, WRITING, AND READING COMPREHENSION– HOMONYM ERRORS Some of the sentences below are correct and some have homonym errors The homonym ... their placement tests This practice essay requires that you read a passage and then respond in writing By asking you to read something, you are being given some direction for your writing This...
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Tài liệu TOEFL STUDY GUIDE PART 3 STRUCTURE AND WRITTEN EXPRESSION pdf
Ngày tải lên :
24/12/2013, 19:15
... action Structure: Grammar Tip 43 Articles: a, an and the are all articles Articles are used before nouns; "a" and "an" are used as nonspecific modifiers and "the" is used as a specific modifier For ... correctly If you know an answer is wrong, you can eliminate that choice and increase your chance of answering correctly Structure and Written Expression: Grammar Tips 38 48 Structure: Grammar Tip ... or "a young man" or "a yapping dog" "A" and "an" are used to modify single nouns or adjectives modifying single nouns "The" can be used for both single and plural modifiers; for example, "I put...
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Tài liệu TOEFL STUDY GUIDE PART 3-2 STRUCTURE AND WRITTEN EXPRESSION docx
Ngày tải lên :
24/12/2013, 19:15
... that matched the pattern." "There is", "there are" , "there were", "there was", "it is", and "it was" are examples of no main verb or subject and are classed as expressions Sentence Completion ... Tense and Agreement m Make sure the subject and verb agree in tense and in number Countries are singular Structure: Error Identification TIP 53 Seven Common Errors: Error #2 Nouns Singular and ... being? n Make sure the subject and verb agree in number, ie if your subject is plural (we, they, you) your verb must be plural For example: n (We, they, or you) are happy n (I, he, she, or it)...
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Tài liệu TOEFL STUDY GUIDE PART 3-3 STRUCTURE AND WRITTEN EXPRESSION doc
Ngày tải lên :
24/12/2013, 19:15
... sentence that are NOT underlined are correct as written You can look at these parts that you know are correct and use them to guide you m Articles and adjectives can tell you whether nouns are plural ... eye to eye" which means "We agree" The use of prepositions can be difficult in idioms, and are often tested Examples are: m Worry about someone NOT worry of someone; m Envious of your coat NOT ... expressions that are tested are in the use of conjunctions which connect equal parts of sentences, such as: m Not only but also "Not only was she late, but she also wasn't prepared." m Neither...
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Practice Tests and Hints for IELTS ppt
Ngày tải lên :
31/03/2014, 19:20
... to Take the Practice Tests Practice Test One - Practice Listening Test One - Practice Reading Test One - Practice Writing Test One - Practice Speaking Test One Practice Test Two - Practice Listening ... Two - Practice Reading Test Two - Practice Writing Test Two - Practice Speaking Test Two Practice Test Three - Practice Reading Test Three - Practice Writing Test Three Practice Test Four - Practice ... given a mark between and for each of the Sub -tests (there are no half marks in the Writing and Speaking Sub -tests) Your Overall Band Score is an average of the Subtest Band Scores, with fractional...
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