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Related Concept Videos

Osmosis00:47

Osmosis

Approximately 60% to 95% of the weight of living organisms is attributed to water. Therefore, maintaining appropriate water balance within cells is of paramount importance. Osmosis is the movement of water across a semipermeable membrane, such as a cell’s plasma membrane. In living organisms, water plays a crucial role as a solvent—a molecule that dissolves other molecules.Diffusion Versus OsmosisBoth diffusion and osmosis are types of passive transport—cellular transport that does not require...
Osmosis01:30

Osmosis

Osmosis is the movement of free water molecules through a semipermeable membrane.  The water's concentration gradient across the membrane is inversely proportional to the solutes' concentration. Whereas diffusion transports material across membranes and within cells, osmosis transports only water across a membrane, and the membrane limits the diffusion of solutes in the water. Osmosis is a special case of diffusion.
Water, like other substances, moves from a high concentration of free water...
Design Example: Vintage Mixing Console01:17

Design Example: Vintage Mixing Console

A sound engineer at a music company recently encountered a problem. The output from their newly acquired studio's vintage mixing console was too low for the requirements of modern recording equipment. To rectify this situation, the engineer decided to design an audio pre-amplifier using an operational amplifier (op-amp) to boost the signal level.
The specifications for the pre-amplifier were clear. It needed to amplify the audio signal by a factor of 10, have an input impedance above 10...
Brick Classifications01:16

Brick Classifications

Bricks, a fundamental component of construction, are categorized based on their application and structural characteristics into several types. These include facing bricks, building bricks, hollow bricks, paving bricks, and firebricks. Facing bricks, also referred to as face bricks, are primarily used for both structural support and visual appeal, making their appearance a crucial aspect. In contrast, building bricks are typically used in concealed sections of a structure, such as behind the...
Midrange01:07

Midrange

A somewhat easy to compute quantitative estimate of a data set’s central tendency is its midrange, which is defined as the mean of the minimum and maximum values of an ordered data set.
Simply put, the midrange is half of the data set’s range. Similar to the mean, the midrange is sensitive to the extreme values and hence the prospective outliers. However, unlike the mean, the midrange is not sensitive to all the values of the data set that lie in the middle. Thus, it is prone to outliers and...
Van de Graaff Generator01:15

Van de Graaff Generator

Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...

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Related Experiment Video

Updated: Jul 14, 2026

Classical Short-Delay Eyeblink Conditioning in One-Year-Old Children
07:36

Classical Short-Delay Eyeblink Conditioning in One-Year-Old Children

Published on: September 1, 2018

Old school.

Jonathan Muraskas1

  • 1Department of Pediatrics and Neonatology, Loyola University Medical Center, Maywood, IL 60153, USA. jmurask@lumc.edu

Journal of Perinatology : Official Journal of the California Perinatal Association
|May 25, 2007
PubMed
Summary

Pediatric residency programs face challenges balancing reduced intensive care rotations and work hour regulations with the need for newborn care proficiency. New standards are essential to ensure competency in acute newborn management despite these changes.

Area of Science:

  • Pediatrics
  • Neonatal Intensive Care
  • Medical Education

Background:

  • Recent changes in pediatric residency requirements have reduced intensive care rotations.
  • Accreditation guidelines now limit housestaff on-call nights to 24 hours and work weeks to 80 hours.
  • These changes aim to improve housestaff training and patient safety.

Purpose of the Study:

  • To address the potential impact of reduced training time on proficiency in managing critically ill newborns.
  • To highlight the need for updated guidelines ensuring competency in neonatal acute care.
  • To reconcile evolving training regulations with the essential skills required for neonatal intensive care.

Main Methods:

  • Review of current pediatric residency training guidelines.

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Preparation of Acute Hippocampal Slices from Rats and Transgenic Mice for the Study of Synaptic Alterations during Aging and Amyloid Pathology

Published on: March 23, 2011

Visual Classical Conditioning in Wood Ants
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Visual Classical Conditioning in Wood Ants

Published on: October 5, 2018

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Last Updated: Jul 14, 2026

Classical Short-Delay Eyeblink Conditioning in One-Year-Old Children
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Published on: September 1, 2018

Preparation of Acute Hippocampal Slices from Rats and Transgenic Mice for the Study of Synaptic Alterations during Aging and Amyloid Pathology
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Preparation of Acute Hippocampal Slices from Rats and Transgenic Mice for the Study of Synaptic Alterations during Aging and Amyloid Pathology

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Visual Classical Conditioning in Wood Ants
05:46

Visual Classical Conditioning in Wood Ants

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  • Analysis of the impact of reduced intensive care rotations on skill acquisition.
  • Examination of evidence-based standards for neonatal acute management.
  • Main Results:

    • Reduced intensive care rotations may lead to inadequate experience for housestaff.
    • Proficiency in acute management of sick newborns is at risk.
    • Current guidelines may not sufficiently address the need for broad-based exposure in neonatal care.

    Conclusions:

    • New evidence-based standards are necessary to ensure competency in neonatal intensive care.
    • Training guidelines must balance work hour limitations with the need for comprehensive exposure.
    • Maintaining high standards of care for sick newborns requires adapting training to current regulations.