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• Relationships
  Psychology
  Social Psychology
  Spirituality
  Language Acquisition
  Child Development
   
  

  Love

  Love has several different meanings in the English language, from something that gives a little pleasure ("I loved that meal") to something one would die for (patriotism, pair-bonding). It can ... > more
• Healthy Aging
  Sports Medicine
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  Pregnancy and Childbirth
  Perception
  Attention Deficit Disorder
   

  Facial symmetry

  Facial symmetry is one of a number of traits associated with health, physical attractiveness and beauty of a person or animal. It is also hypothesized as a factor in interpersonal attraction. R.J. ... > more
• Consumer Behavior
  Psychology
  Social Psychology
  Spirituality
  Educational Psychology
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  Political science

  Political science is the field of the social sciences concerning the theory and practice of politics and the description and analysis of political systems and political behavior. Fields and subfields ... > more
• Psychology
  Social Psychology
  Child Psychology
  Behavior
  Mental Health
  Stress
   

  Ego psychology

  Ego psychology is a school of psychoanalysis that originated in Sigmund Freud's ego-id-superego model. After Freud, a number of prominent psychoanalytic theorists began to elaborate on Freud's ... > more
• Dietary Supplement
  Cell Biology
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  Organic Chemistry
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  Amino acid

  In chemistry, an amino acid is a molecule that contains both amine and carboxyl functional groups. In biochemistry, this term refers to alpha-amino acids with the general formula H2NCHRCOOH, where R ... > more
• Skin Care
  Psoriasis
  Human Biology
  Skin Cancer
  Cosmetic Surgery
  Diseases and Conditions
   
  

  Human skin color

  Human skin color can range from almost black to nearly colorless (appearing pinkish white due to the blood in the skin) in different people. In general, people with ancestors from sunny regions have ... > more
• Sports Science
  Intelligence
  Consumer Behavior
  Language Acquisition
  Solar Energy
  Biometric
   
  

  The Long Tail

  The phrase The Long Tail describes certain business and economic models used by some larger Internet businesses. Products that are in low demand or have low sales volume can collectively make up a ... > more
• Nervous System
  Neuroscience
  Perception
  Psychology Research
  Healthy Aging
  Developmental Biology
   

  Olfaction

  Olfaction, the sense of odor (smell), is the detection of chemicals dissolved in air (or in water, by animals that live under water). In vertebrates smells are sensed by the olfactory epithelium ... > more
• Nervous System
  Neuroscience
  Stem Cells
  Healthy Aging
  Lymphoma
  Brain Injury
   
  

  Axon

  An axon, or nerve fiber, is a long slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neuron's cell body or soma. Axons are in effect the primary ... > more
• Healthy Aging
  Sports Medicine
  Attention Deficit Disorder
  Perception
  Skin Care
  Cosmetic Surgery
   
  

  Tattoo

  A tattoo is a design or marking made by the insertion of a pigment into punctures or cuts in the skin. In technical terms, tattooing is micro-pigment implantation. Tattoos are a type of body ... > more

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