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相关概念视频

Data Collection by Experiments01:13

Data Collection by Experiments

24.1K
Data collection is a systematic method of obtaining, observing, measuring, and analyzing accurate information. An experimental study is a standard method of data collection that involves the manipulation of the samples by applying some form of treatment prior to data collection. It refers to manipulating one variable to determine its changes on another variable. The sample subjected to treatment is known as “experimental units.”
An example of the experimental method is a public...
24.1K
Data Collection by Observations01:08

Data Collection by Observations

11.9K
Data collection refers to a systematic way of obtaining, observing, measuring, and analyzing accurate information. Observational studies are one of the most widely used methods of data collection. It involves collecting data by observing the behavior and physical characteristics of a sample without making any modifications to the sample.
An astronomer viewing the motion and brightness of stars in the sky and recording the data is an example of observational data collection. A botanist recording...
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Data Collection by Survey01:07

Data Collection by Survey

6.4K
The systematic method of obtaining and analyzing accurate information of a population is called data collection. A survey is a standard method of data collection that involves collecting information from a target human population about their experience, opinion, or knowledge of a product, service, or process. The responses are recorded and interpreted. The most common survey examples are written questionnaires, face-to-face or telephonic conversations, focus groups, and electronic (e-mail or...
6.4K
Naturalistic Observations02:30

Naturalistic Observations

15.4K
If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
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Ethics in Research01:56

Ethics in Research

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Today, scientists agree that good research is ethical in nature and is guided by a basic respect for human dignity and safety. However, this has not always been the case. Modern researchers must demonstrate that the research they perform is ethically sound.
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What is an Experiment?01:12

What is an Experiment?

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An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two variables. When one variable causes change in another, we call the first variable the explanatory or independent variable. The affected variable is called the response or dependent variable. In a randomized experiment, the researcher manipulates values of the explanatory variable and measures the resulting changes in the response variable. The...
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Tying up lots of loose ends: dealing with unpublished crystal structures.

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相关实验视频

Updated: Jun 23, 2025

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments
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A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments

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数据收集是你的最后一个实验.

Tim Gruene1

  • 1Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Austria.

Acta crystallographica. Section C, Structural chemistry
|June 17, 2024
PubMed
概括
此摘要是机器生成的。

电子衍射正在彻底改变化学晶体学. 最近的进展正在显著提高其在材料科学和结构确定方面的能力.

关键词:
3D ED ED 3D ED 是一个 3D 的字体.这是一个微型ED.化学晶体学 化学晶体学电子衍射的电子衍射方式

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科学领域:

  • 化学晶体学 化学晶体学
  • 材料科学 材料科学 材料科学
  • 结构生物学 结构生物学

背景情况:

  • 化学晶体学传统上依赖于X射线衍射.
  • 电子衍射提供了补充的结构信息.
  • 最近的技术进步提升了电子衍射的实用性.

研究的目的:

  • 为了突出化学晶体学中电子衍射的转变影响.
  • 展示电子衍射技术的最新进展和应用.

主要方法:

  • 使用先进的电子显微镜来获取衍射数据.
  • 采用计算方法来从电子衍射数据中找到结构溶液.

主要成果:

  • 在结构性确定中表现出更好的分辨率和准确性.
  • 能够研究以前无法获得的新材料和生物大分子.
  • 展示了电子衍射作为主要晶体学工具的不断增长的潜力.

结论:

  • 电子衍射正在迅速推进化学晶体学.
  • 它的独特能力正在扩大结构分析的范围.
  • 进一步整合电子衍射有望在未来取得重大发现.