相关实验视频

Updated: Feb 13, 2026

Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies
07:20

Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies

Published on: January 28, 2014

37.3K

您的邮箱中的研究:远程血液自取样使得受益浅的人口能够参与纵向研究

Filip Stefanovic, Ingrid Robertson, Kathleen Moloney

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

    远程研究有效地使代表性不足的女性参与临床研究,显示出高参与者满意度和保留率. 这种灵活的模型克服了障碍,扩大了对纵向健康研究的访问.

    更多相关视频

    Assaying Blood Cell Populations of the Drosophila melanogaster Larva11:15

    Assaying Blood Cell Populations of the Drosophila melanogaster Larva

    Published on: November 11, 2015

    12.9K
    Author Spotlight: Automated Infusion and Blood Sampling for Precise Hormonal Analysis in Conscious Mice08:56

    Author Spotlight: Automated Infusion and Blood Sampling for Precise Hormonal Analysis in Conscious Mice

    Published on: August 25, 2023

    2.6K

    相关概念视频

    Longitudinal Research02:20

    Longitudinal Research

    Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
    13.5K
    Longitudinal Studies01:26

    Longitudinal Studies

    Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
    537
    Sample Proportion and Population Proportion01:20

    Sample Proportion and Population Proportion

    Collecting samples or responses from an entire population takes significant time and effort, so a researcher collects responses from only a sample of that population. Suppose a study needs to collect information about a specific mobile application. After sample collection, the researcher analyzes the data and discovers that most individuals in the sample use that specific mobile application. The sample proportion measures the number of individuals in a sample who either use or don't use the...
    6.9K
    What is Population Genetics?01:25

    What is Population Genetics?

    A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
    65.0K
    What are Populations and Communities?00:30

    What are Populations and Communities?

    Overview
    38.0K
    Conservation of Small Populations02:04

    Conservation of Small Populations

    Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
    17.4K