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Related Concept Videos

Mixtures of Gases: Dalton's Law of Partial Pressures and Mole Fractions03:03

Mixtures of Gases: Dalton's Law of Partial Pressures and Mole Fractions

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Unless individual gases chemically react with each other, the individual gases in a mixture of gases do not affect each other’s pressure. Each gas in a mixture exerts the same pressure that it would exert if it were present alone in the container. The pressure exerted by each individual gas in a mixture is called its partial pressure.
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Dalton's Law of Partial Pressure01:11

Dalton's Law of Partial Pressure

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The partial pressure of a gas is a measure of the thermodynamic activity of the gas's molecules. The pressure that a gas would create if it occupied the total volume available is called the gas's partial pressure. If two or more gases are mixed together in a container, the molecules move randomly and collide with each other, causing them to reach thermal equilibrium. When the gases have the same temperature, their molecules have the same average kinetic energy. Thus, each gas obeys the...
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Total Voids in Concrete01:12

Total Voids in Concrete

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Total voids in concrete encompass gel water volume, capillary pores, and entrapped air. Gel water (retained within the cement hydration products) and physically entrapped or adsorbed water are significant for the hydration process. For complete hydration, it's estimated that the space needed for the products of a cubic centimeter of cement doubles. Capillary pores constitute the unoccupied space within the hydrated cement paste, with their size largely influenced by the water-to-cement...
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Dosage Regimens: Partial Pharmacokinetic Parameters01:01

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It is not uncommon for complete drug pharmacokinetic profiles to remain elusive in pharmacokinetics. This necessitates certain educated assumptions by pharmacokineticists to determine appropriate dosage regimens without comprehensive pharmacokinetic data from animal or human studies. One prevalent assumption is setting the bioavailability factor, denoted as F, to 1 or 100%. This assumption caters to the scenario where a drug doesn't achieve full systemic absorption, resulting in the patient...
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Inverse z-Transform by Partial Fraction Expansion01:20

Inverse z-Transform by Partial Fraction Expansion

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The inverse z-transform is a crucial technique for converting a function from its z-domain representation back to the time domain. One effective method for finding the inverse z-transform is the Partial Fraction Method, which involves decomposing a function into simpler fractions with distinct coefficients. These fractions correspond to known z-transform pairs, facilitating the inverse transformation process.
To begin the process, the poles of the function are identified and the function is...
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Total Internal Reflection Fluorescence Microscopy01:05

Total Internal Reflection Fluorescence Microscopy

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Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
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Updated: Jan 23, 2026

Application of Microwave Ablation in Laparoscopic Partial Splenectomy
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Application of Microwave Ablation in Laparoscopic Partial Splenectomy

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Total and partial laparoscopic adrenalectomy.

Antonio Silvinato1, Wanderley M Bernardo1, Anibal Wood Branco2

  • 1Brazilian Medical Association, Brazil.

Revista Da Associacao Medica Brasileira (1992)
|June 6, 2019
PubMed
Summary
This summary is machine-generated.

The Guidelines Project standardizes medical information to aid physician decision-making. Clinicians must critically evaluate all provided data for individual patient care.

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Area of Science:

  • Medical Informatics
  • Clinical Guidelines

Background:

  • The Brazilian Medical Association's Guidelines Project seeks to consolidate medical knowledge.
  • Standardization is crucial for improving clinical reasoning and decision-making.

Purpose of the Study:

  • To outline the objectives and scope of the Guidelines Project.
  • To emphasize the role of physician critical appraisal in guideline implementation.

Main Methods:

  • Information synthesis from the medical field.
  • Development of standardized protocols for clinical practice.

Main Results:

  • Creation of a centralized resource for medical information.
  • Establishment of a framework for evidence-based medical practice.

Conclusions:

  • The Guidelines Project provides a valuable tool for physicians.
  • Physician judgment remains paramount in adapting guidelines to patient-specific contexts.