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Public Health and Safety

Ask questions about disease and infections in society and how to cure and prevent outbreaks.

4,000 Questions

Which PSI range is the most dangerous?

PSI ranges above 90 are generally considered the most dangerous, as tire blowouts can occur at this level of pressure. It's important to follow the recommended PSI for your specific vehicle to ensure safe driving conditions.

What is the least common blood type in humans?

When discussing blood types, the two groupings most commonly used are the ABO (A, B, AB, O) and Rh (+, -) systems. The least common blood type in humans is Bombay (EXTREMELY rare), which is a type O with missing H antigen. Otherwise, of the "normal" ABO and Rh typings, the least common group is AB-. ABO from most to least frequent: O, A, B, AB. The relative frequencies of these groups varies depending on race. The relative frequences of Rh+ and Rh- individuals also varies with race. About 85% of "whites" are Rh+, while 99.8% of American Indians are Rh+.

Why Skeletal muscle cells appear striated in the light microscope?

Skeletal muscle cells appear striated in the light microscope due to the arrangement of alternating dark (A bands) and light (I bands) striations formed by the alignment of actin and myosin filaments in a repeating pattern. This striated appearance is key to the function of skeletal muscles, allowing them to generate force for movement through the sliding filament mechanism.

What is the difference between chromosomes and genes?

Chromosomes are structures within cells that contain DNA, while genes are specific segments of DNA that provide instructions for a particular trait. Chromosomes house many genes, along with other DNA sequences, and are inherited in pairs, one from each parent. Genes determine specific traits, such as eye color or blood type.

Can people be born without DNA?

No, people cannot be born without DNA. DNA tells each of the billions of individual cells their function - without functioning cells, they wouldn't even grow beyond the initial cell in the womb.

Anaerobic organism examples?

Examples of anaerobic organisms include certain species of bacteria such as Clostridium botulinum (causes botulism), Clostridium tetani (causes tetanus), and Methanogens (produce methane gas). These organisms thrive in environments with little to no oxygen.

Describe the 5 steps of the circulatory system?

  1. The heart receives deoxygenated blood from the body through the veins.
  2. The heart pumps the deoxygenated blood to the lungs to pick up oxygen and release carbon dioxide.
  3. The oxygenated blood returns to the heart and is pumped out to the body through the arteries.
  4. Oxygen and nutrients are delivered to body tissues, while waste products are picked up.
  5. Deoxygenated blood returns to the heart to start the process again.

Only type of tissue that is able to contract?

Muscle tissue is the only type of tissue in the body that is able to contract. This contraction is how movement is possible in the body.

What are the health issues living near a Doppler radar?

Living near a Doppler radar may expose individuals to low levels of non-ionizing electromagnetic radiation, which has been a topic of debate for its potential health effects. Some studies suggest a possible link to increased risk of cancer or other health issues, while others have found no significant evidence of harm. More research is needed to fully understand the health implications of living near a Doppler radar.

What are three safety rules for children on fireworks?

  1. Never handle fireworks without adult supervision.
  2. Keep a safe distance from fireworks when they are lit.
  3. Follow the instructions on the fireworks packaging carefully and never try to relight a dud firework.

The abducens nerve supplies the?

The abducens is another nerve sending controlling impulses to an eyeball muscle.

Is uranium harmfull if digested?

Yes, uranium is highly toxic if ingested. It can cause severe harm to the kidneys, liver, and other organs, as well as increase the risk of developing cancer. Immediate medical attention is necessary if someone ingests uranium.

Did the Chicago Pile produce a radiation hazard?

Any nuclear reaction produce radiation hazard and should be guarded against by proper shielding.

How did pasteurization change the world for the better?

Louis Pasteur created the process called pasteurization and helped create vaccines. As a result, less people got sick from milk, juices, and tainted wine. Such products also stayed fresh a little longer. Along with vaccines, pasteurization helped wipe out a number of serious diseases.

How do computers produce ozone?

Computers do not produce ozone. Ozone is typically generated by electrical discharge, such as lightning or specialized equipment like ozone generators. Computing devices themselves do not have the capability to generate ozone as a byproduct of their operation.

What form of radiation poses the most serious risk to human health?

Gamma radiation cannot be effectively shielded, it can pass through many feet of heavily leaded concrete with little attenuation. However it is often possible to get far from the gamma emitting material, which is the best way to protect oneself.

Alpha radiation while easily completely blocked by one sheet of paper or your skin, ingestion of particles of alpha emitting materials will cause significant tissue damage and likely cancer, as the tiny particles usually lodge inside tissues and cannot be removed, producing a continuous lifetime exposure of those tissues.

Take your pick as to which is worse.

What is an advantage of the use of vaccinations to fight bacterial diseases?

Vaccinations can provide long-term protection against bacterial diseases by stimulating the immune system to produce antibodies. This helps prevent infection and reduce the spread of bacterial illnesses within a population. Vaccinations can also lower the overall burden of disease, saving lives and reducing healthcare costs.

How do you test for Freon poisoning?

Freon poisoning symptoms include dizziness, headache, nausea, and difficulty breathing. To test for Freon poisoning, a healthcare provider may perform a physical exam, review symptoms, and may conduct blood tests to measure Freon levels in the blood. Treatment usually involves removing the person from the source of exposure and providing supportive care.

Was there any warnings before the Haiti earthquake?

No specific warning was issued before the Haiti earthquake on January 12, 2010. Earthquakes are challenging to predict, so advanced warnings are typically not possible. However, seismic monitoring and preparedness measures can help mitigate the impact of such events.

Is plutonium safe?

Plutonium is highly radioactive and poses significant health risks due to its toxicity. Exposure to even small amounts of plutonium can cause serious health effects such as cancer, organ damage, and radiation sickness. Strict safety protocols must be followed when handling and storing plutonium to minimize these risks.

What is the toxic radioactive metalic waste element of uranium?

Uranium itself is a radioactive and toxic element. All the elements from the decay chain of uranium isotopes are also radioactive (ex.: radon, radium, etc.) excepting the final product, an isotope of lead.

Does Turkey have tsunamis?

no not really they have tsunamis , may be reached as 5-6 meters height but not can be specified as a Tsunami!

The primary health threat of depleted uranium DU is from its toxicity as a?

The primary health threat of depleted uranium (DU) is its potential toxic effects when absorbed into the body. DU can cause kidney damage, lung cancer, and harm to the reproductive system. It is considered hazardous mainly due to its radioactivity and chemical toxicity.