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Related Concept Videos

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The psychodynamic perspective in psychology asserts that most personality functions operate unconsciously, outside of awareness. This means that the motives and emotions driving behavior often remain hidden, automatically buried in the unconscious mind as a defense mechanism to shield us from psychological distress. According to this theory, the unconscious mind contains thoughts, memories, and emotions that are too disturbing to face directly.
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The Behavioral Perspective on Personality01:19

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Behaviorists view personality as primarily shaped by environmental reinforcements and consequences. According to this perspective, behavior is influenced by external stimuli, and individuals adjust their actions based on rewards and punishments. Over time, learning histories — accumulated patterns of reinforcement — play a significant role in shaping personality. Behaviors that lead to positive outcomes are reinforced, while those resulting in negative outcomes are diminished.
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In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
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Social Cognitive Perspective on Personality01:30

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Social cognitive perspectives on personality emphasize the importance of conscious awareness, beliefs, expectations, and goals in shaping behavior. These perspectives incorporate behaviorist principles, such as learning through reinforcement and conditioning, but extend beyond them by highlighting human reasoning and planning. Unlike traditional behaviorist views, social cognitive theory focuses on how individuals reflect on their past experiences and plan for future outcomes by considering...
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The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
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In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
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Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
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Systemic sclerosis - the dermatological perspective.

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  • 1Department of Dermatology, University Medical Center, Erlangen, Germany.

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Summary
This summary is machine-generated.

Systemic sclerosis (SSc) is an inflammatory disease with limited and diffuse subtypes. Current treatments for SSc only slow disease progression, highlighting a need for more effective therapies.

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Area of Science:

  • Rheumatology
  • Immunology
  • Dermatology

Background:

  • Systemic sclerosis (SSc) is a chronic inflammatory connective tissue disease.
  • SSc presents with limited and diffuse subtypes, both involving Raynaud's phenomenon.
  • Diffuse SSc exhibits rapid progression and early internal organ involvement, posing significant treatment challenges.

Purpose of the Study:

  • To review current understanding of systemic sclerosis (SSc).
  • To discuss the clinical characteristics and subtypes of SSc.
  • To evaluate existing treatment strategies for SSc.

Main Methods:

  • Literature review of SSc pathogenesis and treatment.
  • Analysis of clinical presentation and prognostic factors in SSc subtypes.
  • Assessment of current therapeutic options, including lifestyle modifications, circulatory support, and immunosuppressive/immunomodulatory drugs.

Main Results:

  • SSc is characterized by Raynaud's phenomenon in both subtypes.
  • Diffuse SSc is associated with aggressive progression and early organ damage.
  • Current treatments primarily focus on slowing disease progression rather than cure.

Conclusions:

  • Systemic sclerosis management remains challenging due to limited therapeutic efficacy.
  • Existing treatments offer only palliative benefits, emphasizing the need for novel therapeutic approaches.
  • Further research is crucial for developing disease-modifying therapies for SSc.