Brainarium

binomial nomenclature - ️️-naming system by Linnaeus (1735) -two names: genus and specific epithet prokaryotic bacteria - ️️-single celled -prenucleus -divide by binary fission -peptidoglycan cell wall -nutrition from organic or inorganic compounds - prokaryotic archaea - ️️-lack peptidoglycan cell wall -live in extreme environments - (methanogens, halophiles, thermophiles) eukaryotic fungi - ️️-distinct nucleus -chitin cell wall -absorb organic chemicals for energy ...

What are fastidious organisms? - ️️any organism that has a complex nutritional requirement, and will only grow when specific nutrients are included in its diet How is the blood agar selective? - ️️The sheep's blood provided the growth factors for fastidious pathogens How is the blood agar differential? - ️️based on the bacteria's ability to cause hemolysis of blood cells How is the MSA test selective, and what type of bacteria growth does it NOT inhibit (allows to grow)?...

virus's ability to infect an animal cell depends primarily upon the - ️️presence of receptor sites on the cell membrane a mutation that inactivates the gene that expresses the repressor of the lac operon results in - ️️continuous transcription of the structural genes Continuous cell lines differ from primary cell lines in that - ️️continous cell lines can be maintained through an indefinite number of generations which of the following is not a product of transcription? - ️...

Most common bone densitometry is? two other types are? - ️️Most common is dual energy x-ray absorptiometry (DEXA) and two others are quantitative computed tomography or ultrasound DEXA advantages - ️️Low radiation dose, readily available, simple to use, short scan time, high resolution images, precise, and stable calibration What technique is BMD - ️️subtraction technique. BMD is measured without soft tissue. two different X-ray photon energies will pass through the patient. Th...

Bone Composition - ️️Living Tissue Ever-changing to meet metabolic and physiologic needs Bone Matrix 90% Collagen 10% Other Proteins Bone Mineral Calcium Phosphorus cancellous/trabecular bone - ️️Very metabolically active Inner parts of the bone Spongy appearance Highest concentration of cancellous bone Spine Greater Trochanter Distal Radius Calcaneous BMD Purpose - ️️Measure bone mineral density Detect bone loss Establish the diagnosis of osteoporosis Assess an in...

DEXA collimation - ️️Pencil beam: -no longer being manufactured, but still commonly seen - include a collimated x-ray beam and a single detector that move in sync -scanning occurs at a point Fan beam (array scanning): -scan line by line -wide angle fan beam orientated towards long axis of body -narrow angle beam parallel to long axis of the body -significantly shorter scan time, decreased image resolution and higher radiation doses Accuracy is almost equal Central DXA - ️️Consi...

primary osteoporosis - ️️Type I - postmenopausal * caused by bone resorption exceeding bone formation -> estrogen deprivation in women Type II - senile or age related * occurs in aging men & women from decreased ability to build bone History - ️️1930's - 1st pub. for interest in bone mass quantification (pioneering work done in dentistry) * Radiogammetry - introduced in 1960's; bone lose in astronauts 1970's - CT; quantitative measurement of vertebral body, Quantitati...

Identify the incorrect statement from the following: a. Caucasian and Asians are at an increased risk of developing osteoporosis compared to other ethnic groups b. Most obese patients are at an increased risk of developing osteoporosis c. Women are at an increased risk of developing osteoporosis compared to men because they achieve a lower peak bone mass and go through menopause d. Smoking is a recognized risk factor for the development of osteoporosis - ️️Most obese patients are at a...

Why is important to have straigh tires while waiting to turn? - ️️Because in case of an accident the car will go forward and not to the sidewalk and hit other pedestrian or others walking. What is the recommended space cushion (Following distance) for your van? - ️️4-6 seconds at speeds less than 30mph, 6-8 seconds at speeds faster than 40. What are the 3 keys to be a smart driver? - ️️Braking ( Four's, Smooth, Slow,Steady, Show). Mainteining distance. Scanning when and wher...

The length of three delivery vehicles - ️️a safe backing distance is roughly about True - ️️The purpose of DVIC is to keep you and other safe on the road. DVIC is critical to keeping people in vehicle safe or on the road - ️️safety is Amazon's top priority and... As a delivery associate you must never - ️️back up your vehicle, drive around other vehicles, complete u-turns by treating each package like it's your own - ️️how can you provide a positive customer expe...

Stale green light? - ️️When you approach a light that was green before you saw it turn green Following distances for under 30mph and over 30mph - ️️<30mph = 7 seconds >30mph = 8 seconds When do you honk and why? - ️️When reversing or accelerating from park. This is to make sure you and others are aware of your space REPS and Checks? - ️️R - Recognize hazards E - Eliminate distractions P - Plan ahead S - Seek space Check yourself Check for hazards Check your spac...

how can I be a safe driver while operating my vehicle? being a safe driver means being aware of your surroundings. while operating your vehicle, always refer to foundation of safe driving, REPS. - ️️1. Recognize hazardsscan and communicate 2. eliminate distractions- keep your focus and see it all 3. plan ahead- expect the unexpected 4. seek space- eyes on path, know your limits how long do I have to load my vehicle? - ️️1. during load out, each wave of vehicles has 20 minutes to i...

4-6 Seconds Following Time for Speeds Under 30 mph, 6-8 Seconds for Speeds Over 30 mph - ️️This is to keep you from getting a fixation on the car ahead and to allow time to obtain and hold the proper eye-lead time. stall and will give you an instant cushion if it should make a turn Count 1-2-3 After Vehicle Ahead Has Started to Move - ️️This step is to be followed when stopped at an intersection behind another vehicle. 8-15 Seconds Eye-Lead Time - ️️This is the best way to keep...

what driving behaviors contribute to your Safe Driving Score? - ️️Harsh Accerleration, Breaking and Concerning, Speeding and phone Distraction For branded Amazon vehicles, what other driving behaviors are reported? - ️️Idling/ Engine off, Reversing and seat belt off When Should your Daily Vehicle Condition Report be completed - ️️Every morning before starting to drive; every evening when done driving Why is Mentor going to be important and helpful to you? - ️️Because during...

1/24/17 Which drug causes vomiting in cats? - ️️Xylazine is used as an EMETIC in CATS, causes vomiting. Three things to remember about xylazine: 1. Cattle are EXTREMELY SENSITIVE to xylazine. Cow dose is about 20 times LESS than dogs or horses. 2. Reversed with yohimbine, atipamezole, or tolazoline. 3. Pretreatment with Atropine can decrease bradycardia, hypersalivation seen with xylazine in cattle. Two ANTI-emetics in cats are diphenhydramine (Benadryl®), and metoclopramide. 1/25/...

This plant, yellow star thistle, is a substantial source of forage for a herd of goats. What would be the most likely problem seen in the goats? A - Hepatic fibrosis and megalocytosis B - Hemorrhagic gastroenteritis C - Diffuse fibrosing alveolitis D - Nigropallidal encephalomalacia E - No illness - ️️No lesions would be seen. Ruminants are not affected by ingestion of centaurea spp. and can be used to control spread. chronic ingestion of this in horses causes nigropallidal enchephal...

What do the two lights at the top of the class mean? - ️️One means the gas is on and one means the power is on What is the greatest danger in a high school science lab? - ️️An unprepared student Eye protection - ️️Must be worn at all times Uncluttered lab bench - ️️Take away unneeded equipment, no sitting down in the lab Do all products have WHIMS labels? - ️️No because some products fall under other legislation What is MSDS? - ️️Technical information sheets that...

For fire hazards - ️️Flame For oxidizing hazards - ️️Flame over Circle For corrosive damage to metals, as well as skin, eyes - ️️Corrosive Globally Harmonized System - ️️GHS For explosion or reactivity hazards - ️️Exploding Bomb May cause or suspected of causing serious health effects - ️️Health Hazard

What is on the WHMIS workplace label? - ️️1. Name of product matching the SDS Product name 2. Safe handling precautions 3. Reference to the availability of a safety data sheet (SDS) What is on the WHMIS supplier label? - ️️1. Product Identifier 2. Initial Supplier Identifier 3. Pictogram(S) 4. Signal Word 5. Hazard Statement(S) 6. Precautionary Statement(S) 7. Supplemental Label Information 8. No border What is included on a WHMIS label? - ️️- hazard symbols - supplier l...

what effect does silicon have in carbon steel - ️️improves oxidation resistance what is the advantage of argon shielding gas used on carbon steel used machine conditions - ️️ease of manipulation and overheating what effect does carbon have in steel - ️️improves strength and machineability 4.8mm electrode size in inches - ️️3/16 the max safe working pressure of acetylene in kPa - ️️103kpa (15psi) kPa to PSI - ️️1kPa= 0.145psi non-ferrous metals dont have ______ as t...