Related Experiment Video

Updated: Jan 25, 2026

Using a Chemical Biopsy for Graft Quality Assessment
05:00

Using a Chemical Biopsy for Graft Quality Assessment

Published on: June 17, 2020

5.6K

Accreditation of external quality assessment schemes in the United Kingdom

D J Goldie1

  • 1Department of Clinical Biochemistry, Southmead Hospital, BS10 5NB, Bristol, UK. goldie_dj@yahoo.com

Clinica Chimica Acta; International Journal of Clinical Chemistry
|July 5, 2001
PubMed

Keywords:
external quality assessmentclinical pathology accreditationUK healthcare standardslaboratory quality assurance

More Related Videos

Monitoring Extracellular pH in Cross-Kingdom Biofilms using Confocal Microscopy10:26

Monitoring Extracellular pH in Cross-Kingdom Biofilms using Confocal Microscopy

Published on: January 30, 2020

6.8K
Preparation of High-Quality Fermented Fish Product05:17

Preparation of High-Quality Fermented Fish Product

Published on: August 23, 2019

11.0K

Related Concept Videos

The Z-Scheme of Electron Transport in Photosynthesis01:34

The Z-Scheme of Electron Transport in Photosynthesis

The light reactions of photosynthesis assume a linear flow of electrons from water to NADP+. During this process, light energy drives the splitting of water molecules to produce oxygen. However, oxidation of water molecules is a thermodynamically unfavorable reaction and requires a strong oxidizing agent. This is accomplished by the first product of light reactions: oxidized P680 (or P680+), the most powerful oxidizing agent known in biology. The oxidized P680 that acquires an electron from the...
13.3K
Measurement: Standard Units03:38

Measurement: Standard Units

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.
78.8K
Work Done on a System by External Force01:11

Work Done on a System by External Force

The work done by an external force on a particle changes its kinetic energy. However, internal forces must also be considered for a system of interacting particles. The potential energy formulation helps formulate the effect of internal forces. The net work done by an external force can be written in terms of the total change of mechanical energy, which includes both kinetic and potential energies.
In the presence of a non-conservative opposing force, like friction, some part of the work done...
2.9K
Measurement: Derived Units03:02

Measurement: Derived Units

The International System of Units or SI system, by international agreement, has fixed measurement units for seven fundamental properties: length, mass, time, temperature, electric current, amount of substance, and luminosity. These are called the SI base units.
54.6K
External and Internal Respiration01:24

External and Internal Respiration

External respiration occurs in the lungs, and it is the first step in the journey of oxygen inside the body. When we inhale, oxygen enters our lungs and diffuses across the thin alveolar membrane. The alveoli are tiny, air-filled sacs that provide a vast surface area for gas exchange. Oxygen in the alveoli has a higher partial pressure (105 mmHg) than in the adjacent pulmonary capillaries (40 mmHg), establishing a pressure gradient. As a result, oxygen molecules move from the alveoli into the...
7.3K
Internal and External Forces01:12

Internal and External Forces

Newton's first law states that a net external force causes a change in motion. External forces act on an object or system, originating outside of the object or system. In contrast, internal forces originate inside the system of interest and do not lead to any acceleration. In simpler words, internal forces are forces that act on one part of an object and are exerted by another part of the same object. External forces are forces that act on an object due to some other object. Therefore, when...
16.2K