个人资料图片
English
  • 全部
  • 搜索
  • 图片
  • 视频
  • 地图
  • 资讯
  • 更多
    • 购物
    • 航班
    • 旅游
  • 笔记本
报告不当内容
请选择下列任一选项。
  • 时长
    全部短(小于 5 分钟)中(5-20 分钟)长(大于 20 分钟)
  • 日期
    全部过去 24 小时过去一周过去一个月去年
  • 清晰度
    全部低于 360p360p 或更高480p 或更高720p 或更高1080p 或更高
  • 源
    全部
    Dailymotion
    Vimeo
    Metacafe
    Hulu
    VEVO
    Myspace
    MTV
    CBS
    Fox
    CNN
    MSN
  • 价格
    全部免费付费
  • 清除筛选条件
  • 安全搜索:
  • 中等
    严格中等(默认)关闭
筛选器
What is a randomised trial? | Clinical Trials | Cancer Research UK
1:55
YouTubeCancer Research UK
What is a randomised trial? | Clinical Trials | Cancer Research UK
Find out how and why researchers use randomisation to test new treatments. All new treatments need to be tested in clinical trials to find out whether they work , what side effects they have and whether they are as good or better than the standard treatment available. After a long development process researchers use randomise trials to be sure ...
已浏览 16.7万 次2014年10月29日
Random Sampling Examples
How to Generate Random in Excel | Excel Tutorial
0:53
How to Generate Random in Excel | Excel Tutorial
YouTubeHumosapia
已浏览 418 次2023年10月26日
Wholesome Fails: This Random Clip Went From Normal to Comedy Fast 😂⚡
0:22
Wholesome Fails: This Random Clip Went From Normal to Comedy Fast 😂⚡
YouTubeFamous Epic people
已浏览 981万 次2 周前
Wholesome Fails: From Totally Normal to Hilarious in Seconds 😂⚡
0:22
Wholesome Fails: From Totally Normal to Hilarious in Seconds 😂⚡
YouTubeFamous Epic people
已浏览 2246.9万 次2 周前
热门视频
What is randomisation?
3:52
What is randomisation?
YouTubeAustralian Clinical Trials
已浏览 3.9万 次2019年9月30日
Randomization Units in A/B Testing: Easy Explanation for Data Science Interviews
8:31
Randomization Units in A/B Testing: Easy Explanation for Data Science Interviews
YouTubeEmma Ding
已浏览 3.7万 次2022年7月4日
Explaining Randomization in Clinical Trials
7:25
Explaining Randomization in Clinical Trials
YouTubeU.S. Department of Health
已浏览 5.6万 次2017年9月29日
Random Sampling Methods
Wholesome Fails: From Totally Normal to Hilarious in Seconds
0:25
Wholesome Fails: From Totally Normal to Hilarious in Seconds
YouTubeFamous Epic people
已浏览 514.5万 次2 周前
Wholesome Fails: A Normal Moment That Instantly Became Comedy 😂⚡
0:26
Wholesome Fails: A Normal Moment That Instantly Became Comedy 😂⚡
YouTubeFamous Epic people
已浏览 139.8万 次3 周前
Wholesome moments for allWholesome Fails: This Random Clip Went From Normal to Comedy Fast 😂⚡
0:23
Wholesome moments for allWholesome Fails: This Random Clip Went From Normal to Comedy Fast 😂⚡
YouTubeFamous Epic people
已浏览 1431.2万 次4 周前
What is randomisation?
3:52
What is randomisation?
已浏览 3.9万 次2019年9月30日
YouTubeAustralian Clinical Trials Alliance
Randomization Units in A/B Testing: Easy Explanation for Data Science Interviews
8:31
Randomization Units in A/B Testing: Easy Explanation for Data Scienc…
已浏览 3.7万 次2022年7月4日
YouTubeEmma Ding
Explaining Randomization in Clinical Trials
7:25
Explaining Randomization in Clinical Trials
已浏览 5.6万 次2017年9月29日
YouTubeU.S. Department of Health and Human Services
Introduction to Mendelian randomization - Part 2
14:06
Introduction to Mendelian randomization - Part 2
已浏览 8168 次2021年6月1日
YouTubeInternational Statistical Genetics Workshop
Part - 1: Random Variables in SystemVerilog: Understanding rand and randc Keywords Randomization
6:13
Part - 1: Random Variables in SystemVerilog: Understanding ran…
已浏览 959 次2024年7月18日
YouTubeTechGate
Randomization (random allocation)
13:51
Randomization (random allocation)
已浏览 4万 次2020年9月8日
YouTubeCochrane Austria
How to do randomisation in research studies?
23:26
How to do randomisation in research studies?
已浏览 1.3万 次2022年2月5日
YouTubeWInspire
2:21
Understanding Randomization In Clinical Trials
已浏览 2515 次2022年5月16日
YouTubePfizer
5:33
Generate Randomization Sequences for a Clinical Trial with randomizeR
已浏览 8114 次2016年9月16日
YouTubeIDeAl Randomization in R
观看更多视频
静态缩略图占位符
更多类似内容
反馈
  • 隐私
  • 条款