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Answers from our experts to important scientific questions

Submit a question Our editors will select questions from those submitted and post their answers here.

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Psychiatry & Psychology:
Physiological psychology

- Does memory vary according to whether audio or visual learning is experienced?

- Does everybody dream?

- Why do we have different phases of sleep?

Psychiatry

- Is the cause of Alzheimer's disease known?


Sample questions from Q & A:

Biological & Biomedical Science
Q: What new treatments for AIDS are in use especially in Africa?

A: Fixed-dose, single-pill therapy that combines several anti-HIV drugs may be the future of AIDS therapy in the developing world. Questions concerning patents need to be answered.

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Environmental Science | Microbiology
Q: How would you research the best way to design an environmentally friendly town center? I am a teacher planning a project for an environmental science class. The town center would include a movie theatre, stores, restaurants, a park and an art center.

A: Designing an environmentally friendly town center is a rich and complex topic. From global environmental quality to biodiversity of local streams to individual health and fitness, urban design profoundly impacts many relationships between people and their environment.

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Agriculture, Forestry & Soils
Q: What is the difference between weathering and erosion?

A: Weathering and erosion are geological processes that act together to shape the surface of the Earth. Weathering processes break solid rocks into fragments. Erosion processes, involving running water, blowing wind, or moving ice, pick up and move these fragments to a different location.

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