latent

Examples of latent in the following topics:

• Latent Learning

  • Latent learning occurs without any obvious conditioning or reinforcement of a behavior, illustrating a cognitive component to learning.
  • Latent learning is a form of learning that is not immediately expressed in an overt response.
  • Latent learning implies that learning can take place without any behavioral changes being immediately present.
  • While most early studies of latent learning were done with rats, later studies began to involve children.
  • Edward Tolman was a behavioral psychologist who first demonstrated latent learning in rats.

• Latent Heat

  • The latent heat is the energy associated with a phase change of a substance.
  • where the latent heat of fusion, Lf, and latent heat of vaporization, Lv, are material constants that are determined experimentally.
  • Latent heat is an intensive property measured in units of J/kg.
  • Lf and Lv are collectively called latent heat coefficients.
  • Andrew Vanden Heuvel explores latent heat while trying to cool down his soda.

• Onset of Labor

  • Prodromal labor, which includes the latent phase of labor, marks the initial stages of parturition.
  • The latent phase is generally defined as beginning at the point at which the woman perceives regular uterine contractions.
  • Cervical effacement (the thinning and stretching of the cervix and cervical dilation) occurs during the closing weeks of pregnancy and are usually complete, or near complete, by the end of the latent phase.
  • The latent phase ends with the onset of the active phase, which is marked by an accelerated cervical dilation.

• Shingles

  • Shingles, the common name for herpes zoster, is caused by latent varicella zoster virus, the same virus which causes chickenpox in children.
  • Varicella zoster virus can become latent in the nerve cell bodies and less frequently in non-neuronal satellite cells of dorsal root, cranial nerve or autonomic ganglion, without causing any symptoms.
  • Exactly how the virus remains latent in the body, and subsequently re-activates is not understood.

• Toxoplasmosis

  • The three categories of toxoplasmosis include acute, latent, and cutaneous toxoplasmosis.
  • Latent toxoplasmosis is characterized by the formation of cysts in both the nervous and muscle tissue due to the bradyzoite form of the parasite.
  • Often times, individuals infected with latent toxoplasmosis do not present with symptoms, as the infection enters a latent phase.
  • Compare and contrast: acute and latent toxoplasmosis and outline the life cycle of the protazoan that causes it

• The Functionalist Perspective

  • Education also provides an example of Merton's theory of manifest and latent functions.
  • A latent function of the public education system is the development and maintenance of a class hierarchy.
  • In the 1950s, Robert Merton elaborated the functionalist perspective by proposing a distinction between manifest and latent functions.
  • Latent functions are its unintended functions.
  • Latent functions may be undesirable, but unintended consequences, or manifestly dysfunctional institutions may have latent functions that explain their persistence.

• Syphilis

  • The signs and symptoms of syphilis vary depending in which of the four stages it presents (primary, secondary, latent, and tertiary).
  • Many people who present with secondary syphilis (40–85% of women, 20–65% of men) do not report previously having had the classic chancre of primary syphilis.LatentLatent syphilis is defined as having serologic proof of infection without symptoms of disease.
  • The United Kingdom uses a cut-off of two years for early and late latent syphilis.
  • Early latent syphilis may have a relapse of symptoms.
  • Late latent syphilis is asymptomatic, and not as contagious as early latent syphilis.

• Other Diseases and Epstein-Barr Virus

  • The latent EBV genome is circular, so it must linearize in the process of lytic reactivation.
  • Unlike lytic replication, the latent stage does not result in production of virions.
  • Latent EBV expresses its genes in one of three patterns, known as latency programs.
  • EBV can latently persist within B cells and epithelial cells, but different latency programs are possible in the two types of cells.
  • It will remain dormant during the latent stage until it is reactivated into the lytic cycle.

• Tuberculosis

  • Most infections are asymptomatic and latent, but about one in 10 latent infections eventually progresses to active disease which, if left untreated, kills more than 50% of those infected.
  • Latent TB treatment usually employs a single antibiotic, while active TB disease is best treated with combinations of several antibiotics to reduce the risk of the bacteria developing antibiotic resistance.
  • People with latent infections are also treated to prevent them from progressing to active TB disease later in life.

• Intelligence and Inequality

  • Although schools' manifest function is to educate and train intelligence, they also have latent functions like socializing students.
  • However, education also offers several latent functions, one of which is to foster social skills.
  • Latent functions are not generally recognized or intended; rather, they are a secondary effect of manifest functions.