What Does a Positive Covid Test Look Like? - The Scientist …
May 10, 2024 · ABOVE: A positive rapid test will yield two visible lines (middle) while a valid negative test will only show a single line in the control region (right) and an invalid test will show no control line (left). iStock, ASIFE V iral TikTok videos showing teenagers hacking rapid COVID-19 tests by inserting sodas and other acidic solutions into the tests’ inlet caused quite a …
Optimizing PCR: Proven Tips and Troubleshooting Tricks
Feb 23, 2024 · Template DNA. Template amount, source, and secondary structures or GC-rich regions may affect the reaction. 7. The amount of template depends on the DNA copy number. For a standard PCR reaction with 25-30 cycles, roughly 10 4 copies of the template DNA are sufficient to generate a detectable amount of PCR product. 7; The DNA required for a given reaction also depends on the source.
Insights into qPCR: Protocol, Detection Methods, and Analysis
Nov 8, 2023 · qPCR, also known as real-time PCR, is an extension of traditional PCR, where DNA amplification over time is quantitated by measuring fluorescence from dyes intercalating into nascent DNA strands or by cleavage of target-specific probes. Therefore, the method combines detection with amplification, providing researchers with crucial data in real ...
Words for Nerds - Science Wordle Game - The Scientist Magazine®
Welcome to Words for Nerds, our popular and addictive daily science word game. Think of it as science Wordle—a guessing jumble for every nerd, especially the busy life scientist looking to get a little break from the rigors of research. You have six chances to guess either a five-letter or six-letter (see “Hard Mode” under the settings ...
Artificial Organs: Innovating to Replace Donors and Dialysis
Jan 20, 2023 · Artificial organs are bioengineered devices or tissues that scientists create and integrate into the human body to replace, duplicate, or augment functional, naturally occurring organs. 1 They pose a solution to organ donor shortages, and can also be used as medical training tools. 2. Based on the materials researchers use to produce them ...
Sketching out Cell Theory, circa 1837 | The Scientist Magazine®
Aug 1, 2013 · Robert Hooke had coined the word “cell”—short for cellula, or “small compartment” in Latin—in the mid-17th century, after he’d seen tiny rectangular shapes while studying slices of cork using a rudimentary microscope. But Hooke had not grasped the importance and ubiquity of cells in plants. And by Schwann and Schleiden’s time ...
What Happens to Muscles During Exercise? - The Scientist
Jan 1, 2024 · The molecular exercise physiologist Keith Baar studies how muscles change in response to different types of exercise. When people undertake endurance training, such as running, one of the biggest changes in their muscles is an increase in the number of mitochondria, said Baar. “If we go through exercise that uses a lot of energy, our body ...
How Cloud Labs and Remote Research Shape Science
Mar 18, 2024 · Inception and Development of Remote Labs for Scientific Research. The idea of remote work can be traced back to the 1970s when Jack Nilles, a NASA engineer, proposed the use of telecommuting to alleviate traffic congestion. 4 The advent of personal computers and widespread internet access in the early 2000s has contributed to the concept of remote work being popularly accepted as a viable ...
Chimera research opens new doors to understanding and treating …
Aug 9, 2023 · Early chimera research was difficult and inexact. Scientists painstakingly removed tissue from one embryo and grafted it into another embryo (3). However, advances in stem cell research in the 2000s revolutionized the field, opening up new possibilities and new applications for multispecies organism research. In 2007, a team at Kyoto University ...
How Your Nose Got Its Shape | The Scientist Magazine®
Aug 1, 2016 · Like a wind tunnel, the nasal passages cause turbulence in inspired air, allowing it to touch the inner walls of the nose and draw moisture and heat from our mucosa and blood vessels. The shape of the human nose has been sculpted in part by climate. “A lot of it depends on the environment that your ancestors grew up in,” says Lauren Butari ...