相关实验视频

Updated: Jun 16, 2025

BtM, a Low-cost Open-source Datalogger to Estimate the Water Content of Nonvascular Cryptogams

BtM, a Low-cost Open-source Datalogger to Estimate the Water Content of Nonvascular Cryptogams

Published on: March 25, 2019

科学电话:关于的全球覆盖面的警告故事

Katherine H I Drotos¹, Douglas W Larson¹, R Troy McMullin²

¹Department of Integrative Biology at the University of Guelph, Guelph, Ontario, Canada.

|August 19, 2024

概括

全球覆盖面的无根据估计在科学和流行媒体中广泛传播. 这一案例凸显了错误信息如何在没有证据的情况下扩散,敦促对科学传播进行批判性评估.

科学领域:

生态生态学生态生态学
科学沟通科学沟通
图书统计学图书统计学

背景情况:

科学文献和大众媒体可以传播毫无根据的说法.
错误信息可能会产生重大和深远的后果.

研究的目的:

追踪全球覆盖面的未经证实的估计的起源和传播.
展示科学错误信息扩散的机制.

主要方法:

学术引用的图书法分析. 学术引用的图书法分析.
科学文献和大众媒体的内容分析.
追踪特定统计数据的引用历史.

主要成果:

一个未经证实的覆盖率估计来源于1987年非同行评审的出版物.
该统计数据在76篇学术文章 (4125次引用) 和13份其他学术文件中被引用.
这个估计在流行的媒体中出现了37次,经常被改变或没有来源归因.

结论:

没有证据的陈述可以通过科学和公共道迅速和广泛传播.
对来源和引用实践的批判性评估对于保持科学完整性至关重要.
这一案例是研究人员和科学传播者的警示性例子.

关键词:

引用的做法引用的做法全球植被的全球植被.科学沟通科学沟通陆地覆盖范围的覆盖范围.

更多相关视频

Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations

Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations

Published on: September 11, 2016

Author Spotlight: Standardizing Limbal Niche Cell (LNC) Isolation and Characterization to Support Widespread LNC Research

Author Spotlight: Standardizing Limbal Niche Cell (LNC) Isolation and Characterization to Support Widespread LNC Research

Published on: October 27, 2023

相关概念视频

Cell Lines

Cell Lines

A cell line is a population of cells grown in vitro that can be subcultured over several generations. Normal cells cease to divide after a certain number of cell divisions, a process known as replicative senescence. This number, called the Hayflick limit, was conceptualized by Leonard Hayflick in 1961 when he observed that fetal cells grown in culture could only divide 40-60 times. This limit is due to the shortening of the telomeres during each round of cell division, preventing cell division...

Karyotyping

Karyotyping

Lampbrush Chromosomes

Lampbrush Chromosomes

In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...