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Related Concept Videos

Stereotype Content Model02:16

Stereotype Content Model

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The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
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The representative heuristic describes a biased way of thinking, in which you unintentionally stereotype someone or something. For example, you may assume that your professors spend their free time reading books and engaging in intellectual conversation, because the idea of them spending their time playing volleyball or visiting an amusement park does not fit in with your stereotypes of professors.
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Behavior is a product of both the situation (e.g., cultural influences, social roles, and the presence of bystanders) and of the person (e.g., personality characteristics). Subfields of psychology tend to focus on one influence or behavior over others. Situationism is the view that our behavior and actions are determined by our immediate environment and surroundings. In contrast, dispositionism holds that our behavior is determined by internal factors (Heider, 1958).
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Polymers that are made up of identical monomer units are called homopolymers. Only one repeating unit is involved in the construction of the homopolymer structure. For example, as depicted in Figure 1, polypropylene is a homopolymer constituted of propylene monomers. Here, the only repeating unit in the polymer chain is propylene.
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The operational amplifier, commonly known as an op-amp, is a specially designed electronic circuit component. Its purpose is to work in conjunction with other circuit elements to execute a defined signal-processing operation. Consider an equivalent circuit model of an op-amp, as depicted in Figure 1; the output section comprises a voltage-controlled source in parallel with the output resistance Ro.
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According to some social psychologists, people tend to overemphasize internal factors as explanations—or attributions—for the behavior of other people. They tend to assume that the behavior of another person is a trait of that person, and to underestimate the power of the situation on the behavior of others. They tend to fail to recognize when the behavior of another is due to situational variables, and thus to the person’s state. This erroneous assumption is...
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Updated: Jul 27, 2025

Characterization at the Molecular Level using Robust Biochemical Approaches of a New Kinase Protein
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Characterization of a

Daniel Wilkinson1,2, Lolwah Alsharaf1,3, Stephen Thompson1

  • 1School of Science and Technology, Nottingham Trent University, Nottingham, UK.

Journal of Medical Microbiology
|June 9, 2023
PubMed
Summary
This summary is machine-generated.

Helicobacter pylori biofilm formation varies significantly between strains, but this study found no link to disease severity. A high biofilm-forming strain, 444A, was identified and its genome sequenced.

Keywords:
Bacteriagenomehybrid assemblyplasmidtoxin-antitoxin

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Area of Science:

  • Microbiology
  • Genomics
  • Infectious Diseases

Background:

  • Helicobacter pylori exhibits significant strain variability, influencing disease potential.
  • Bacterial biofilms enhance survival against antibiotics and host immunity, promoting persistent infections.

Purpose of the Study:

  • To investigate the association between H. pylori biofilm-forming ability and disease severity in UK patients.
  • To characterize a high-biofilm-forming H. pylori strain and its genomic features.

Main Methods:

  • Biofilm-forming capacity assessed using crystal violet assays.
  • Whole genome sequencing of H. pylori strain 444A performed via hybrid assembly (Nanopore and Illumina).

Main Results:

  • No significant correlation was found between H. pylori biofilm formation and disease severity.
  • Strain 444A demonstrated exceptionally high biofilm-forming ability and was isolated from a patient with gastric ulcer disease.
  • Genome analysis of strain 444A revealed numerous biofilm and virulence genes, plus a type II toxin-antitoxin system on a cryptic plasmid.

Conclusions:

  • While H. pylori biofilm formation varies, it was not significantly linked to disease severity in this cohort.
  • Strain 444A represents a valuable model for studying high biofilm formation in H. pylori.