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Related Concept Videos

Standard Enthalpy of Formation02:37

Standard Enthalpy of Formation

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Enthalpy changes are typically tabulated for reactions in which both the reactants and products are at the same conditions. A standard state is a commonly accepted set of conditions used as a reference point for the determination of properties under other different conditions. For chemists, the IUPAC standard state refers to materials under a pressure of 1 bar and solutions at 1 M and does not specify a temperature. Many thermochemical tables list values with a standard state of 1 atm. Because...
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Standard Electrode Potentials03:02

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On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
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Measurement: Standard Units03:38

Measurement: Standard Units

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Every measurement provides three kinds of information: the size or magnitude of the measurement (a number), a standard of comparison for the measurement (a unit), and an indication of the uncertainty of the measurement. While the number and unit are explicitly represented when a quantity is written, the uncertainty is an aspect of the errors in the measurement results.
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Calculating Standard Free Energy Changes02:49

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The free energy change for a reaction that occurs under the standard conditions of 1 bar pressure and at 298 K is called the standard free energy change. Since free energy is a state function, its value depends only on the conditions of the initial and final states of the system. A convenient and common approach to the calculation of free energy changes for physical and chemical reactions is by use of widely available compilations of standard state thermodynamic data. One method involves the...
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Standard Solutions01:14

Standard Solutions

2.5K
Standard solutions refer to solutions with a precisely known concentration or composition. A primary standard is a highly pure, high molar mass, stable substance that is entirely soluble in water, the most commonly used solvent in analytical chemistry. The primary standard solution can be used to standardize secondary standards, which are substances with known concentrations but are less pure and stable. Standard solutions are essential for achieving accurate and reliable results in analytical...
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Standard Precaution01:26

Standard Precaution

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Standard precautions are the minimum infection control safeguards used while caring for all patients, irrespective of their disease condition. They help prevent the spread of common infectious microorganisms to healthcare workers, patients, and visitors in all healthcare settings.
Hand hygiene is the most crucial means to prevent the transmission of disease. Employers are legally required to provide their workers with personal protective equipment (PPE) to minimize exposure or contact with...
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Related Experiment Video

Updated: Feb 2, 2026

Gold Nanoparticle Synthesis
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Published on: July 10, 2021

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[Trained eye vs. gold standard].

M Molina Anguita1, F Abadín López2, L Márquez Quero2

  • 1Medicina Familiar y Comunitaria, Centro de Salud Torredonjimeno, Jaén, España.

Semergen
|November 13, 2018
PubMed
Summary
This summary is machine-generated.

This study found a 68% correlation between clinical diagnoses and histopathology results in minor surgery, indicating good accuracy for common skin lesions. These findings support the clinical diagnostic process in primary care settings.

Keywords:
Anatomía patológicaAtención primariaCirugía menorClinical correlationCorrelación clínicaHistopathologyMinor surgeryPrimary Care

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Area of Science:

  • Dermatology
  • Surgical Pathology
  • Primary Care Medicine

Background:

  • Accurate pre-operative diagnosis is crucial for effective minor surgery.
  • Histopathology confirmation remains the gold standard for skin lesion diagnosis.

Purpose of the Study:

  • To assess the concordance between clinical diagnosis and histopathology reports in minor surgery.
  • To identify clinically relevant versus less important surgical data for cost-effectiveness.

Main Methods:

  • A retrospective, observational study of 124 minor surgery cases.
  • Data collected from a primary care clinic in Ciudad Real Health Centre I.
  • Analysis of clinical diagnoses versus histopathology findings.

Main Results:

  • A 68% correlation was observed between clinical diagnosis and histopathology.
  • Most common diagnoses included melanocytic nevi (34.67%), seborrheic keratosis (11.30%), and cysts (10.48%).
  • Study adhered to data confidentiality protocols.

Conclusions:

  • A good correlation exists between pre-operative clinical diagnosis and histopathology results in minor surgery.
  • Findings align with similar studies in primary care minor surgery.
  • Supports the reliability of clinical assessment in minor surgical procedures.