Maggysamuel49

Why was the hypothesis of Luminiferous Aether introduced? - The Hypothesis of Luminiferous Aether was introduced to answer the question; "when light moves through a vacuum what is it that oscillates"? Since it was known that when acoustic waves move through a medium the wave is really the propagating disturbance of the medium whose particles ossicles as the wave moves. Therefore since physicists could not conceive of light waves propagating without a physical medium to do so, it was ...

what much water is in an adults body - 60% no water in the body means - hypertonic; dehydration from loss of water alone without a corresponding loss of sodium Symptoms of hypertension - •Profuse sweating, hyperventilation, DKA, fevers, diarrhea, renal failure, diabetes insipidus. no salt in the body means - hypotonic - losing electrolytes Symptoms of hypertension - •Water intoxication, chronic illness, malnutrition, renal failure no water or salt in body - isotonic - losing both ...

Pathophysiology - the study of the functional changes that happen to the body as a result of disease Homeostasis - Maintain state of balance; Stable internal environment Feedback mechanisms - regulate body functions, maintain homeostasis ex: rise in blood glucose stimulates the secretion of insulin that helps to remove glucose from blood to be used by tissues, thus decreasing serum glucose Signs - Objective - can observe or measure; local signs (redness, inflammation, bleeding); syste...

Hypothyroidism - underproduction of the hormone thyroxine (T4) (yellow) Too little thyroxine=slower metabolism fatigue, depressed mood, slow heart rate, constipation, weight gain, and irregular menstrual periods. MC in >60 women Hyperthyroidism - overproduction of thyroid hormones: triiodothyronine (T3) (green), and thyroxine (T4) (yellow) What active hormones are produced by the thyroid? - triiodothyronine (T3) and thyroxine (T4, tetraiodothyronine) 4 steps to synthesis of thyroi...

Bacterostatic - kills the bacteria bacteriocidal - kills the bacteria and stops the growth or spread of the infection Bacteriostatic drugs - clindamycin macrolides sulfonamides tetracyclines Bactericidal drugs - ahminoglycosides beta-lactums fluroquinolones Metronidazole Streptogramins vancomycin

What labs are used to diagnose hypo/hyper thyroid? - TSH, T3, and T4. High TSH = hypo and low TSH = hyper. Opposites. Timeframe for re-check of labs after starting levothyroxine - 6-8 weeks (long half-life). Yearly after stable. Signs and symptoms of hypothyroidism - Dry hair, puffy face, goiter in the neck, slow heartbeat, weight gain, constipation, infertility, increased risk of miscarriages, irregular menstrual cycle, cold intolerance. Drug of choice for hypothyroidism - Levothyrox...

Standard Deviation - How spread out the data is from the mean Coefficient variation gives... - A percent of variability Equation for coefficient variation - (SD/mean) x 100 What do error bars represent? - Standard Deviation A t-test shows...? - The probability of something happening by chance What does is mean when the t-test is less than 0.05...? - There is a significant difference, 95% chance not due to chance alone

Categories of human performance measurement - - Body composition and anthropometrics - Aerobic and anaerobic capacity (physiology) - Technique - neuromuscular (biomechanics) - Strength and power (biomechanics) - Perception (psychological) - Technique - kinematics and kinetics (biomechanics) Inertia parameters - Properties of a body that define how it moves when a force/torque is applied. - Mass - Length - Centre of mass location - Moment of inertia

What are the applications of human performance measurements in sports technolgy? - - effect of an intervention e.g. equipment or training - develop the equipment to measure that we're interested in Catagories of human performance - Body composition & anthropometric Aerobic & anaerobic capacity Technique: neuromuscular Strength & power Perception Technique: kinematic and kinetics

Definitions - Counting numbers - the most basic numbers/ starting point for young children ex. 1, 2, 3, 4, 5, 6..... (not 0) (2 ways to think about counting numbers) -list - -counting numbers is an ordered list. Every number has a unique successor and predecessor (except 1) -cardinality - number of things in a set ex. 5 blocks, 5 cats, 5 toys one-to-one correspondence - -counting a set of objects one by one, between the list of counting numbers and the set -ex. counting blocks, ...