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Darya [45]
3 years ago
7

Neither the participant nor the researcher knows to which group the participant is assigned.

Medicine
1 answer:
Naya [18.7K]3 years ago
6 0

Answer:

The answer is B double-blind study

Explanation:

In this type of scientific study neither the experimenter nor the researcher knows the study sample, during the period that the experiment lasts, in order not to influence the results.

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Compare and contrast countercurrent exchangers and multipliers. Be able to give examples.
SIZIF [17.4K]

Answer:

The diagram presented is useful to understand the difference between these two types of exchange, which represents two fluid streams that travel parallel separated by a semipermeable or thermo-conductive membrane. The blue color represents the lowest value of the characteristic to be exchanged, while the red color indicates the highest value, so that the direction of the transfer will be of the fluid with the highest value to the lowest value. In the specific case of heat, the movement follows the second law of thermodynamics and in the case of solids as solutes the phenomenon of osmosis is followed. Exchange in equicorrent and countercurrent.

Direct flow

In this system the two fluids go in the same direction and their gradient varies along the flow path. Taking into account that the fluid present in the two tubes is the same, this method of exchange is only capable of exchanging half of the property (heat, matter, concentration, etc.) between fluids, no matter how long the flow path If either of the two currents changes their property by 50% or more, the exchange will be interrupted since the gradient is reduced to zero, indicating that the equilibrium point has been reached. In case of having unequal flows, the equilibrium conditions will be a little closer to the conditions of the current that has the greatest flow.

4 0
3 years ago
Carcinoma means cancerous tumor<br> True or false?
pantera1 [17]

Answer:

True !

Explanation:

Carcinoma is a malginancy that begins in the skin or in tissues that line or cover internal organs. They are a common type of malignant tumor.

6 0
3 years ago
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How long has gravity been around?
Neporo4naja [7]

Answer:

since the world started duhh

Explanation:

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3 years ago
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Deprived of nutrition, osteocytes at the fracture site die.<br> a. True<br> b. False
raketka [301]

Answer:

True

Explanation:

Any living thing will die if it is lacking the proper nutrition.

4 0
3 years ago
What are the 5 main parts of the cardiovascular system?.
Scorpion4ik [409]

Answer:

the heart, arteries, veins, capillaries and blood.

Explanation:

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