関連する実験動画

Updated: Feb 13, 2026

Subjective Refraction Test Using a Smartphone for Vision Screening
05:36

Subjective Refraction Test Using a Smartphone for Vision Screening

Published on: October 18, 2024

1.8K

ガーナにおける強化された学校ベースの視力スクリーニングプログラムにおける小児眼疾患と推薦遵守に関連する個人および学校レベルの要因

Afua O Asare, Priscilla Ablordeppey, Enoch A Asiedu

    medRxiv : the preprint server for health sciences
    |February 12, 2026
    PubMed
    まとめ

    この研究では,学校の種類と社会経済的な地位が,ガーナにおける小児視力スクリーニングの結果に影響することを発見しました. 公立学校の子どもたちは眼疾患を少なく,SESの低い子どもたちは,紹介への従順度が低いことを示した.

    さらに関連する動画

    Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children10:57

    Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children

    Published on: August 22, 2012

    24.4K
    Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology09:55

    Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology

    Published on: September 28, 2022

    2.3K

    関連する概念動画

    Vision01:24

    Vision

    Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
    60.3K
    Disorders of Acid-Base Balance01:29

    Disorders of Acid-Base Balance

    The human body maintains a precise pH range of arterial blood between 7.35 and 7.45. Deviations result in either acidosis (pH < 7.35) or alkalosis (pH > 7.45). These conditions are further classified as respiratory or metabolic disorders based on their underlying cause.
    Respiratory Acidosis and Alkalosis
    Respiratory acidosis occurs due to an increase in the partial pressure of carbon dioxide PCO2 in the blood. It often arises from shallow breathing or impaired gas exchange caused by...
    2.1K
    Transcription Factors02:16

    Transcription Factors

    Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
    82.9K
    Color Vision01:24

    Color Vision

    Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
    1.5K
    Self-Evaluation: Self-Enhancement and Self-Verification03:00

    Self-Evaluation: Self-Enhancement and Self-Verification

    Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
    5.8K
    Impact of Individuals on Individuals01:30

    Impact of Individuals on Individuals

    Human behavior is intricately shaped by social influences that arise from interactions with others in diverse contexts. These influences not only mold beliefs and attitudes but also drive the regulation of behaviors through both direct communication and observational learning. The study of these processes falls within the domain of social psychology, which seeks to understand how individuals are affected by and affect those around them.Mechanisms of Social InfluenceDirect social influence...
    403