Why is negative staining useful in transmission electron microscopy-based visualization of viruses?

Answers

Answer 1

Answer:

well you see, negative staining of viral suspensions provides detailed information of virus particles' structure. It is a technique that can be quickly performed and is able to accommodate the highest magnifications of virus particles.


Related Questions

AIDS is an acquired disorder. The disease that causes people to get AIDS is abbreviated as HIV. What does HIV stand for?

Answers

HIV stands for
(H)uman
(I)mmunodeficiency
(V)irus
Human immunodeficiency virus

What processes can be used to amplify the amount of dna present

Answers

Answer:

Polymerase Chain Reaction (PCR)

Explanation:

It is a technique used to "amplify" small segments of DNA.

The PCR processes can be used to amplify the amount of DNA present.

Why is DNA amplification important?

This response permits a single or some copies of DNA to be replicated into hundreds of thousands or billions of copies. And through amplifying that DNA, it permits us to take a look at that DNA molecule in element withinside the laboratory.

The polymerase chain response (PCR) is a biochemical generation in molecular biology used to make bigger a single, or some copies, of a bit of DNA throughout numerous orders of magnitude, producing heaps to hundreds of thousands of copies of a specific DNA sequence.

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For appropriate treatment, it is vital to discern if the qrs wave is __________ in an tachycardic individual

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For appropriate treatment, it is vital to discern if the QRS wave is wide or narrow in a tachycardic individual.

What is the QRS complex?

The QRS complex (or ventricular depolarization) makes reference to the combination of waves observed in an electrocardiogram.

The QRS complex is the combination of the three different waves that include the R wave, Q wave and S wave.

The QRS complex is produced by electrical action, i.e., the ventricular depolarization, of the heart muscle.

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For suitable treatment, it's miles crucial to figure if the QRS wave is huge or slim in a tachycardic individual.

What is the QRS complex?

The QRS complex  (or ventricular depolarization) makes connection with the aggregate of waves located in an electrocardiogram.

The QRS complex is the aggregate of the 3 distinctive waves that encompass the R wave, Q wave and S wave.The QRS complex is produced through electric action, i.e., the ventricular depolarization, of the coronary heart muscle.

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_____ cause(s) mild and limited disease, whereas _____ cause(s) more severe disease and higher mortality.

Answers

Answer:

a. Antigenic drift; antigenic shift

Explanation:

Public health nutrition and community nutrition are the same thing.
O False
O True

Answers

It is true. They are the same.

If a toy boat was placed in a pool of liquid mercury (mercury is 13. 6 times denser than water) it would

Answers

We can confirm that if a toy boat was placed in a pool of liquid mercury it would initially float, then tip over and sink.

Why would the boat eventually sink?

Floating has to do with density. Objects that are less dense than others will float to the top. Since boats are made to not be very dense, they float. The problem here is that since mercury is so dense, the boat will float much higher than it would in water, offsetting its center of boancy and causing it to tip over. This would lead to mercury filling the boat and it eventually sinking.

Therefore, we can confirm that if a toy boat was placed in a pool of liquid mercury it would initially float, then tip over and sink.

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Is feeling surreal a symptom of depression or mental illness?

Answers

Answer: mental illness

Explanation:

Answer:

I also agree its a mental illness

Dehydration can lead to ____________ blood osmolarity.

Answers

Answer:

Hypovolemia

Explanation:

Answer:Dehydration can lead to (increased) blood osmolarity. This state will stimulate (hypothalamic) osmoreceptors.

Explanation:

What part of the scaphoid is most at-risk for developing avascular necrosis and why?

Answers

Answer: Scaphoid nonunion advanced collapse (SNAC) is the end-stage and is managed with wrist fusion or proximal row carpectomy. Avascular necrosis - The incidence of this is approximately 30-40%. This is most likely to affect the proximal pole.

Explanation:

does eating while dehydrated make you dehydrate faster?

Answers

Answer:

Because the dehydration process concentrates calorie and sugar content, dried foods can offer a more effective energy boost than other snacks

During which phase of the cardiac cycle are all four heart valves open

Answers

Answer:

They're actually never all open at the same time but I'm assuming they're looking for Atrial and Ventricular Diastole.

Explanation:

There are two phases of the cardiac cycle when all the four heart valves are open: the isovolumetric contraction phase and the isovolumetric relaxation phase.

What do you mean by Cardiac cycle?

The Cardiac cycle may be defined as the stages involves in the transformation of deoxygenated blood to oxygenated blood in the lungs and pumping it by the heart to the body through the aorta.

The phase of isovolumetric contraction is associated with the systole, while the phase of volumetric relaxation is associated with the diastole.

The atria and ventricles of the heart both proceed through systole and diastole phases which occur simultaneously.

Therefore, there are two phases of the cardiac cycle when all four heart valves are open: the isovolumetric contraction phase and the isovolumetric relaxation phase.

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What statement best reflects the scope and function of professional nursing associations?

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Scope of practice of nursing profession unveil the services that a qualified health professional is competent to perform, and permitted to undertake medical task and in keeping with the terms of their professional license.

What is Nursing association?

Association of nursing refers to a group that govern the registered nurse, analyzes the assessment data to determine actual or potential diagnoses, problems, and issues.

The registered nurse identifies expected outcomes any service that is individualized to the healthcare consumer or the situation.

Therefore, Scope of practice of nursing profession unveil the services that a qualified health professional is competent to perform, and permitted to undertake medical task and in keeping with the terms of their professional license.

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The function of the professional nursing association is to deliver the possibility for nursing as a profession to influence nursing practice, education, health policy, and its standards.

What do you mean by Nursing association?

A Nursing association may be defined as a group of medical healthcare that protects individuals from diseases and disorders.

Scope of professional nursing associations describes all those services and facilities that any patient requires. They work certified with the terms of their professional licenses.

Therefore, the function of the professional nursing association is to deliver the possibility for nursing as a profession to influence nursing practice, education, health policy, and its standards.

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how is crohn's disease or ulcerative colitis treated

Answers

Answer:

Treatment for Crohn's disease and ulcerative colitis

medication to reduce the chances of flare-ups. steroid (cortisone) medication. medication to reduce the activity of the immune system. corrective surgery for complications.

The nurse is assessing a client with agonal breathing during a mass casualty event. What categories should the nurse assign to the client and what actions should be taken for this client?

Answers

The nurse should assign it to a red tag as it's most urgent treatment needed to prevent more casualties.

What is Agonal breathing?

This refers to when someone who is not getting enough oxygen is gasping for air.

When this occurs, the nurse should assign it as a red tag and oxygen should be given to prevent cardiac arrest and death of body cells.

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During a mass casualty situation, the nurse has to assign four types of tags on the basis of the client's situation such as green for the walking wounded/minor conditions, yellow for delayed condition, red for immediate condition, and black for the decreased situation.

What do you mean by mass casualty situation?

A Mass casualty situation may be defined as a situation that describes an incident in which emergencies medical services resources, such as personnel and equipment are needed urgently.

In this condition, the nurse has to assign the red tag which is known for immediate service, and provide oxygen to the client in order to prevent the condition of cardiac arrest.

Therefore, it is well described above.

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The World Health Organization (WHO) (1948) cited in Somerville et al. (2016: 35) defined health as ‘a state of complete physical, mental and social well-being and not just the absence of illness or infirmity.’ - Identify 2 strengths and 2 limitations of the given definition

Answers

Answer:

“A state of complete physical, mental and social. well-being and not merely the absence of. disease or infirmity” – WHO Constitution.

Explanation:

In 2019, approximately how many cases of chlamydia trachomatis infections were reported in the united states?.

Answers

Answer:

1,808,703

Explanation:

So, after looking this up, I have come to the conclusion that is displayed above.

How are some autoimmune disorder symptoms alleviated by using medications that suppress the immune system

Answers

Medications that suppress the immune system will decrease the production of autoantibodies, relieving some symptoms.

What is the central control center for energy balance and weight management?.

Answers

Answer:

Hypothalamus I think

Explanation:

A medical researcher wishes to investigate the effectiveness

Answers

Answer:

Please provide more Information

Explanation:

Please provide what to do?

The null hypothesis is a general statement. According to this, there is no relationship between two phenomena under consideration. Here the p value will be 0.1086. As the P-value is greater so it was is rejected.

What is null and alternative hypothesis?

It is an alternative hypothesis that describes that there is a relationship between two selected variables in a study.

To test for the evidence of a difference in mean b loss for the two methods done by null and alternative hypothesis.

Its given that

Sample mean x = -2

Population mean = 0SD = 6

Sample size n = 25

According to t-test statistics

[tex]t=\frac{x-\mu }{\frac{\sigma}{\sqrt{n} } }[/tex]

[tex]t=\frac{-2-0}{\frac{6}{\sqrt{25} }}[/tex]

t=-1.667

P-value = P(t ≤ -1.667) + P(t ≥ 1.667)

P-value = 0.1086

Thus, as the P-value is greater than It is subjected for rejection.

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examples of a lumious object

Answers

Answer:

Definition: full of or shedding light; bright or shining, especially in the dark

Examples of objects: lamps,lightbulbs,candles,fire,etc...

What tertiary function tries to make a decision based upon personal situation, and focuses on the relationship and giving praise to others?

1. judging

2. Goal-setting

3. Dreaming

4. Feeling

Answers

Feeling is the tertiary function which tries make a decision based upon personal situation.

What is Feeling?

This is defined as the perception of events within the body and body consciousness.

This is why it is used to make decisions and also focuses on the relationship and giving praise to others.

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which emerging focuses on community wellness and developing strategies to create efficiency and improve outcomes?

Answers

Community health focuses on community wellness and developing strategies to create efficiency and improve outcomes?

What is community health?

Community health is a medical strategy that is in place and in l specialty that focuses on the physical and mental well-being of the people in a specific geographic region.

Therefore, Community health focuses on community wellness and developing strategies to create efficiency and improve outcomes

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A client is on strict bedrest, identify three (3) interventions the nurse can implement to prevent skin breakdown

Answers

Answer:

Turn every 2 hours is the key to prevent break down. Head of bed should be kept at 30 degrees or less to avoid sliding down on bed. Use pillows or foam wedges to keep bony prominences from direct contact with each other. Keep the pillows under the heels to raise off bed

If the client is on strict bedrest, it must be necessary to maintain his/her proper body alignment by taking care of the client.

What do you mean by Skin breakdown?

Skin breakdown may be defined as the process of breakdown of dead tissue or exhausted tissue with the use of enzymes.

The nurse should position the patient on a rotating side-lying place every two hours. The nurse can use pillows for patient assistance.

Reduce the time for sitting in a chair, and use some devices that can lower the blood pressure. It is also mandatory to check the nutritional status of the patient as well as skin check regularly.

Therefore, it is well described above.

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what kind of vitamin is dangerous when you take too much

Answers

Answer:

Vitamin D is dangerous when you take large amounts in short periods, or too much even in long periods.

Drugs used to put a patient under for surgery and how do they work

Answers

Explanation:

they work because of personn is in pain they should have anesthesia which makes them unconscious so they don't feel pain

Which element increase in a community as a direct result of gang activity

Answers

Answer:

The causes that originate the existence of youth gangs are similar to those that originate drug addiction, such as lack of communication and Page 26 16 understanding between parents and children, family disintegration, bad company and abandonment in which many young people live.

Explanation:

Gradually reduce your relationship with other known gang members. The less you are in the area, the better. Look for activities that keep you busy and away from that area. » I get a job in another neighborhood. Even if it is a part-time job, it will help you while breaking off the relationship with the gang.

What is the effectiveness and time to take effect of Claritin?

Answers

Answer:

People who take it may feel relief in as little as one hour.

Explanation:

It's designed to calm the histamine reaction your body has when it's exposed to an allergen.

The time taken by Claritin to produce effects in the people is about 2-3 hours after taking it.

What do you mean by Claritin?

Claritin may be defined as the medication which is an antihistamine and is used to treat allergy symptoms.

Claritin is produced to decline the effect of histamine in the body of organisms. It may be given when an allergen may be exposed to your body. It declines the histamine reactions and triggers the white blood cells to activate for fight response.

Therefore, it is well described above.

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Can diabetic pills kill you if you are not diabetic?

Answers

Answer:

It is possible.

Explanation:

They can cause seizures and death, yes.

Yes, the intake of diabetic pills kills you if you are not diabetic in long term. This is beacuse your body adapts or changes when you are taking diabetic pills for short term, but may cause death when they are excessively taken regularly for a long time.

What do you mean by Diabetic pills?

Diabetic pills may be defined as medication that stabilizes and control blood glucose levels amongst people with diabetes.

Taking diabetic medication when you are a non-diabetic can cause significant changes to your body's glucose levels.

It may lead to the situation of hypoglycemia which indicates the level of glucose which is certainly low in your body.

If this situation persists for the long term, the individual suffers from a lack of energy, appetite, and finally, death occurs.

Therefore, yes, the intake of diabetic pills kills you if you are not diabetic in long term.

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When did you know your child had Conduct disorder?

Answers

Conduct behavior is a type of behavior disorder which is characterized by antisocial behavior of child. It can be detected by observing the symptoms in children like aggressive behavior, destructive behavior, violations of rules, etc.

What is the main cause behind conduct disorder?

Conduct disorder is a serious behavioral or can be emotional disorder and can occur in children and teens.

Its exact cause is unknown however it can be due to

Biological factor: including defects or injuries in certain parts of the brain.Genetics: this disorder can be partially inherited.Environmental: includes dysfunctional family life, childhood abuse, traumatic experience, etc.Psychological: it can reflect the problem of moral awareness.Social: it includes less socioeconomic status, avoidance by peers, etc.

Thus, it can be concluded that the child can be diagnosed with conduct disorder if it is having symptoms like aggressive behavior, violation of rules, destructive behavior, etc.

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The nurse is admitting a client with heart failure. What client statement indicates that fluid overload was occurring at home?

Answers

The statement "I'm having trouble going up the steps during the day" would indicate fluid overload occurring at home.

What is fluid overload?

Fluid overload is a health problem that may be caused by the excess intake of fluids (i.e., water) in the body.

Fluid overload is caused by liquid retention and this situation may derive in serious health problems and diseases.

Fluid overload occurs when the body loses its intrinsic ability to lose liquid or water in a given period of time.

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The statement "I'm having hassle going up the stairs for the duration of the day" could suggest fluid overload happening at home.

What is fluid overload?

Fluid overload is a fitness hassle that can be due to the extra consumption of fluids ( i.e., water) withinside the frame.Fluid overload is due to liquid retention and this case can also additionally derive severe fitness issues and diseases.

Fluid overload takes place while the frame loses its intrinsic capacity to lose liquid or water in a given duration of time.

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