Polarized - Study guides, Class notes & Summaries

Purpose of RF (B1) field ~~> excite hydrogen protons RF energy is absorbed by tissues ~~> within the volume of the RF transmit coil. This is a thermogenic process. Thermogenic process ~~> Results in production of heat. Ex: RF energy absorption MRI local and whole-body tissue heating is due to ~~> magnetic induction Types of RF coil designs ~~> -linearly polarized -circularly polarized (quadrature) Function of coils 2 | P a g e | © copyright 2024/2025 | Grade A+...

CETA Exam Questions And Answers VGA - ANSWER- 640 x 480 256 Colors 15 Pins SVGA - ANSWER- 800 x 600 256 Colors 15 Pins XGA - ANSWER- 1024 x 768 or 1366 x 768 16 mil, HD Colors 15 Pins Widescreen - ANSWER- 1280 x 720 or 1920 x 1080 DVI or HDMI Connectors Random Access Memory - ANSWER- RAM Read Only Memory - ANSWER- ROM Programmable Read Only Memory - ANSWER- PROM Electrical Programmable Read Only Memory - ANSWER- EPROM Electrically Erasable PROM - ANSWER- EEPROM 50 Ohms - ANSWE...

GLY 3202C - Exam 2 (Module 4-6) Practice Questions and Answers 100% Pass True or false? Rocks must be sliced into thin sections in order to be viewed under the petrographic microscope. - ANSWER-True What is refraction? - ANSWER-When light bends as it crosses a boundary between two mediums. Which mineral has the lowest relief relative to epoxy resin (n=1.537)? (n is approximate) - ANSWER-Quartz: n=1.5 Which property of a light wave determines its color? - ANSWER-Wavelength What is defin...

ethology Correct Answer-scientific study of animal behaviour how animals interact w/their world and each other applied ethology Correct Answer-science of understanding and managing the behaviour of animals under human care (or that we come into conflict w/) who are the pioneers of ethology and what was their influence? Correct Answer-karl von frisch konrad lorenz niko tinbergen changed observation of animal behaviour from hobby to scientific discipline first to show that behaviour is ...

Test Bank to accompany Neuroscience, Sixth Edition Purves • Augustine • Fitzpatrick • Hall • LaMantia • Mooney • Platt • White Chapter 1: Studying the Nervous System Multiple Choice 1. Which part of DNA is transcribed into messenger RNA? a. Exon b. Intron c. Promoter d. Non-coding DNA e. Regulatory DNA Answer: a Textbook Reference: Genetics and Genomics Bloom’s Level: 2. Understanding 2. Genomics is the analysis of a. coding DNA sequences for a species. b. ...

2024 LOCAL ANESTHESIA BOARD EXAM PREP 200 REAL EXAM QUESTIONS AND CORRECT ANSWERS/ LOCAL ANESTHESIA BOARD EXAM LATEST VERSION 2024/2025 (NEWEST) These questions and answers have been derived from DHY 240 lecture notes & Handbook of Local Anesthesia textbook (Malamed) What type of needle is used for the Buccal ("Long Buccal") Nerve Block? - ANSWER-25g or 27g long (*25g or 27g short can be used if ONLY doing the Buccal injection) Which Mandibular Injection uses a 25g or 27g Short need...

The amount of reflection of each surface of CR-39 lenses is approximately - 4% The absorption of light in lenses is classified by two variables. What are they? A. base curve and thickness B. index of refraction and thickness C. thickness and lens transmission D. tint and lens transmission - D. tint and lens transmission The denser the tint in a lens A. the greater the transmission of light through the lens B. the greater internal reflections in the lens C. the less transmission ...

Iron filings Correct Answer-Magnetic particle inspection uses small ferromagnetic particles similar to: A magnetic field Correct Answer-A volume of space where there is a change in magnetic energy is called: Ferromagnetic materials Correct Answer-Which of the following has a large susceptibility to magnetic field? Iron, nickel, cobalt Correct Answer-Magnetic particle inspection can be performed on parts made from which materials? A magnetic pole Correct Answer-A location where a magn...

A mineral is black under plane polarized light and stays black on rotation under crosspolarized light. How would you classify it? - ️️Opaque When the accessory plate is inserted, what happens to the upper right (NE) quadrant, just inside the isogyre, of a uniaxial or biaxial interference figure for a mineral with a negative optic sign? - ️️It turns yellow True or false? Rocks must be sliced into thin sections in order to be viewed under the petrographic microscope. - ️️True Wha...

CRATWhile in the resting state myocytes are _____ - correct answer Polarized The interior of the cell is ___ charged when myocytes are polarized - correct answer Negatively Depolarized cells have what kind of charge - correct answer Positive charge Myocytes become positive and contract - correct answer Depolarization Depolarization causes progressive contraction of the myocardium as this wave of ___ charges passes through the interior of the myocytes - correct answer Positive ...