发现YouTube一个神奇的频道3Blue1Brown，它有一个播放列表《线性代数的本质》。看完了4个视频，包括了向量，线性组合，跨度，基向量，线性变换和矩阵乘法。 B站播放列表在这里。 继续观看了4个视频，内容包括三维变换、行列式、逆矩阵、列空间、零空间和非 ...

They were then asked to measure a 5 mL (1 teaspoon) dose of Tylenol (acetaminophen) suspension, using the EZY Dose oral syringe and the dosing cup provided by the manufacturer. An acceptable dose ...

In the remaining 80% of syringes, a 20 mL syringe was the most appropriate size to achieve the recommended 40 mm Hg. Once ‘released’ plunger position did not make a difference. Conclusions Use of a ...

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The Hot 100 is the United States’ main singles chart, compiled by Billboard magazine based on sales, airplay and streams in the US. View the full Hot 100 here.

As a result, the actual amount of acetaminophen in the syringe was less than intended; nevertheless, 64 participants were able to measure a dose within 0.5 mL of the correct dosage. Furthermore ...

Connecting decision makers to a dynamic network of information, people and ideas, Bloomberg quickly and accurately delivers business and financial information, news and insight around the world ...

holiday 100 the week’s most popular holiday songs across all genres and eras, ranked by streaming activity data by online music sources tracked by luminate, radio airplay audience impressions as ...

Looking back at the biggest hit singles of every year, dating to the Hot 100's 1958 launch. By Xander Zellner Billboard has been publishing weekly rankings in one form or another for over a century.

A marine biologist and lecturer at Kasetsart University, Thon Thamrongnawasawat, told the media that about 300 marine animals die each year in Thailand as a result of ingesting plastic. Globally, it ...