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Related Concept Videos

Review and Preview01:10

Review and Preview

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In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
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Review and Preview01:13

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Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
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Resistivity01:22

Resistivity

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When a voltage is applied to a conductor, an electrical field is generated, and charges in the conductor feel the force due to the electrical field. The current density that results depends on the electrical field and the properties of the material. In some materials, including metals at a given temperature, the current density is approximately proportional to the electrical field. In these cases, the current density can be modeled as:
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Resistance01:19

Resistance

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When a current moves through any conductor, the conductor causes some level of difficulty for the current to flow. The measure of that difficulty is known as the resistance of the material and is represented by R. Every material has its own resistance. In the case of conductors, heat is emitted whenever a current passes through them. Resistance depends on the resistivity of the material. Resistivity is a characteristic of the material used to fabricate electrical components, whereas the...
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Equivalent Resistance01:16

Equivalent Resistance

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In circuit analysis, situations often arise where resistors are neither in series nor parallel configurations. To tackle such scenarios, three-terminal equivalent networks like the wye (Y) (Figure 1 (a)) or tee (T) and delta (Δ) (Figure 1 (b)) or pi (π) networks come into play. These networks offer versatile solutions and are frequently encountered in various applications, including three-phase electrical systems, electrical filters, and matching networks.
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Resistance and Conductance01:25

Resistance and Conductance

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A conductor's DC resistance at a given temperature is influenced by its resistivity, length, and cross-sectional area. Resistivity is an inherent property of the conductor material, with annealed copper serving as the international standard for measurement. For instance, the resistivity of hard-drawn aluminum at 20 degrees Celsius is 61% of the standard conductivity of annealed copper.
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Vancomycin resistant Enterococci: A brief review.

Taskeen Raza1, Sidra Rahmat Ullah1, Khalid Mehmood2

  • 1Department of Industrial Biotechnology, Atta ur Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan.

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Summary
This summary is machine-generated.

Vancomycin-resistant enterococci (VRE) are leading causes of dangerous hospital infections. This overview details VRE epidemiology, virulence, resistance, and strategies for prevention and treatment.

Keywords:
Enterococci spp, Drug resistance, Vancomycin.

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Public Health

Background:

  • Enterococci are significant opportunistic pathogens, frequently causing nosocomial infections.
  • Enterococcus faecalis and Enterococcus faecium are the primary species responsible for human diseases.
  • Common infections include bacteremia, endocarditis, UTIs, and surgical site infections.

Purpose of the Study:

  • To provide a comprehensive overview of vancomycin-resistant enterococci (VRE) infections.
  • To cover the epidemiology, virulence factors, and antibiotic resistance mechanisms of VRE.
  • To discuss current prevention and treatment strategies for VRE.

Main Methods:

  • Literature review of epidemiological data.
  • Analysis of virulence factors and antibiotic resistance determinants (VanA, VanB).
  • Synthesis of information on prevention and treatment protocols.

Main Results:

  • VRE infections are a growing concern due to high mortality rates.
  • VanA and VanB are key antibiotic resistance determinants globally identified in VRE.
  • VRE pose a serious threat to healthcare settings.

Conclusions:

  • Effective prevention and treatment strategies are crucial to combat VRE.
  • Understanding VRE epidemiology and resistance is vital for infection control.
  • Continued research into novel therapeutic approaches is necessary.