How to take your pulse

Your pulse is your heart rate, or the number of times your heart beats in one minute. You can take your pulse using the radial artery in your wrist or the carotid artery in your neck.

Some medical conditions can be a factor in determining the best place for you to take your pulse. For example, if you have heart disease or longstanding diabetes, it's best to use the artery on your wrist.

General instructions for taking your pulse

To get an accurate pulse:

Take your pulse the same time each day.

Sit down and rest several minutes before taking your pulse.

Count your pulse for a full 60 seconds unless told otherwise by your health care provider.

Taking your radial pulse

With your palm up, look at the area between your wrist bone and the tendon on the thumb side of your wrist. Your radial pulse can be taken on either wrist.

Use the tip of the index and third fingers of your other hand to feel the pulse in your radial artery between your wrist bone and the tendon on the thumb side of your wrist.

Apply just enough pressure so you can feel each beat. Do not push too hard or you will obstruct the blood flow.

Watch the second hand on your watch or a clock as you count how many times you feel your pulse.

Record your pulse rate.

Taking your carotid pulse

Find the area on one side of your neck near your windpipe. Your carotid pulse can be taken on either side of your neck.

Put the tip of your index and long finger in the groove of your neck along your windpipe to feel the pulse in your carotid artery. Do not press on the carotid artery on both sides of your neck at the same time. This may cause you to feel lightheaded or dizzy, or possibly faint.

Apply just enough pressure so you can feel each beat. Do not push too hard or you will obstruct the blood flow.

Watch the second hand on your watch or a clock as you count how many times you feel your pulse.

Record your pulse rate.

https://medicalxpress.com/news/2020-03-pulse.html?utm_source=nwlett...

How to take temp.: Always use a digital thermometer to check your temperature. Because of the potential for mercury exposure or ingestion, glass mercury thermometers have been phased out and are no longer recommended.

Read the instructions that came with the thermometer.

Wash your hands with soap and warm water before using the thermometer.

Clean the thermometer before and after each use with rubbing alcohol or soap and lukewarm water.

Don't use the same thermometer for both oral and rectal temperatures. Get two and label which is used where.

Wait at least 6 hours after taking medications that can lower your temperature, like acetaminophen (Tylenol, others), ibuprofen (Advil, Motrin IB, others) or aspirin.

Oral temperature

You'll need an oral thermometer, used in the mouth.

If you've been eating or drinking, wait 30 minutes before you take a temperature by mouth.

Turn on the digital thermometer. Place the thermometer tip under your tongue.

Close your mouth around the thermometer for the recommended amount of time or until the thermometer beep indicates it's done.

Remove the thermometer and read the number.

Ear temperature

A digital ear thermometer uses an infrared ray to measure the temperature inside the ear canal.

Turn on the digital thermometer. Gently place it in your ear canal no further than indicated by the instructions that came with the device.

Hold the thermometer tightly in place until you hear the thermometer beep indicating it's done.

Remove the thermometer and read the number.

Temporal artery temperature

Temporal artery thermometers use an infrared scanner to measure the temperature of the temporal artery in your forehead.

Turn on the digital thermometer.

Gently sweep it across your forehead and read the number.

Armpit temperature

A digital thermometer can be used in your armpit, if necessary. But armpit temperatures are typically less accurate than oral temperatures.

Turn on the digital thermometer. Place the thermometer under your armpit, making sure it touches skin, not clothing.

Hold the thermometer tightly in place until you hear the thermometer beep indicating it's done.

Remove the thermometer and read the number.

https://medicalxpress.com/news/2020-03-temperature.html?utm_source=...

To get on top of the coronavirus, we also need to test people without symptoms

How do we test for coronavirus?

There are two kinds of laboratory tests. One is a PCR (polymerase chain reaction) test, which detects fragments of the virus RNA in the sputum (phlegm), throat, nose or other body fluid.

The other is a blood test for antibodies to the virus. This can identify people who have been exposed to the virus and produced antibodies, whose swab may be negative.

Currently only PCR tests are widely available, but blood tests (serology) should be available soon.

PCR tests have some shortcomings. Throat swabs in particular can give you a false negative, so it may be necessary to repeat the test in someone who seems to have COVID-19. A nasal swab or sputum (phleghm) specimen is more likely to be positive in an infected person.

The PCR tests will only be transiently positive, while the serology remains positive once you have been infected. Blood tests are less likely to miss infected people, including children and young people. However, a blood test doesn’t tell you if someone is infectious at that time. PCR and serology can be used together for optimal results.

https://theconversation.com/to-get-on-top-of-the-coronavirus-we-als...

Mathematics of life and death: How disease models shape national shutdowns and other pandemic policies

https://www.sciencemag.org/news/2020/03/mathematics-life-and-death-...

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https://theconversation.com/how-to-model-a-pandemic-134187?utm_medi...

 How to model a pandemic

--

https://www.ted.com/talks/molly_webster_the_weird_history_of_the_se...

The common thinking on biological sex goes like this: females have two X chromosomes in their cells, while males have one X and one Y. In this myth-busting talk, science writer and podcaster Molly Webster shows why the so-called "sex chromosomes" are more complicated than this simple definition -- and reveals why we should think about them differently.

--

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The number of steps per day, not speed, is linked to mortality rate

An observational study found a benefit as steps added up for women and men

--

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Researchers Discover the Largest Virus in the Oceans Yet

Coronavirus: why changing human behaviour is the best defence in tackling the virus

https://theconversation.com/coronavirus-why-changing-human-behaviou...

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Scientists find a way to extract color from black

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Researchers catch light in a funnel

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Scientists predict the size of plastics animals can eat

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Working from home risks online security and privacy: How to stay protected

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Scientists have created novel prototypes that use quantum encryption protocols for secure transmission of sensitive information through the internet.

Free range mitochondria are coming for you

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Quantum copycat: Researchers find a new way in which bosons behave like fermions

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* https://phys.org/news/2020-03-longer-energy.html?utm_source=nwlette...

Longer lives not dependent on increased energy use

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Study shows how brain gains knowledge through observation

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3-D printed sensors could make breath tests for diabetes possible

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A device for the early detection of certain eyesight problems

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Animals keep viruses in the sea in balance

Why does your cotton towel get stiff after natural drying?

Cotton towels often become stiff when washed without fabric softener and naturally dried, but the mechanism behind it has remained a mystery. In previous studies, the research groups at Kao Corporation suggested the involvement of bound water—a special type of water that exhibits unique properties on the surface of materials—for the hardening. The group proposed a theoretical model in which the bound water that remains on the surface of cotton causes cross-linking between single fibers through a process called capillary adhesion.

In the current study published in the Journal of Physical Chemistry C, the research group reports direct observations of the bound water on cotton surfaces, providing strong evidence for Kao's model. 

The AFM observations indicated the existence of a viscous substance on the cotton surface that is not cellulose, the major component of cotton. This strongly suggested viscous bound water is present and causing capillary adhesion—a phenomenon in which liquid sandwiched between solid surfaces causes them to adhere. In the following experiments, the AFM-IR spectra of naturally dried cotton surfaces showed two peaks that indicate the existence of water. On the other hand, no peaks were observed after completely removing water on the cotton surface. Furthermore, the spectra, showing two clear peaks, suggested that the bound water takes two different states at the air-water interface and the water-cotton interface, respectively.

"The experiments clarified that bound water is evident on cotton surfaces and contributes to certain dynamic properties such as stiffness mediated by capillary adhesion. Also, the bound water itself manifested a unique hydrogen bonding state different from that of ordinary water.

The remaining "bound water" on cotton surfaces cross-link single fibers of cotton, causing hardening after natural drying

https://phys.org/news/2020-03-cotton-towel-stiff-natural.html?utm_s...

Completely new antibiotic resistance gene has spread unnoticed to several pathogens

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*I won't have what he's having: The brain and socially motivated behavior

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Gene mutation enhances cognitive flexibility in mice, study suggests

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Shifts in chemical rhythms may cause eating behaviors that lead to obesity

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Small hearts have strong vortex flow, large hearts have mild vortex

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Forgotten tale of phage therapy history revealed

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* https://medicalxpress.com/news/2020-03-higher-intake-fruits-vegetab...

Higher intake of fruits, vegetables tied to fewer menopause symptoms

COVID-19: Heart and kidney patients should keep taking their medicines

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https://medicalxpress.com/news/2020-03-covid-patients-coronavirus-s...

Some COVID-19 patients still have coronavirus after symptoms disappear: study

 researchers found that half of the patients they treated for mild COVID-19 infection still had coronavirus for up to eight days after symptoms disappeared.

--

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How to boost immune response to vaccines in older people

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Coronavirus skeptics, deniers: Why some of us stick to deadly beliefs

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What's wrong with the H-index, according to its inventor

“Severe unintended negative consequences”.

--

* https://www.sciencemag.org/news/2020/03/physicists-brawl-over-new-d...

Physicists brawl over new dark matter claim

The Math That Tells Cells What They Are

https://www.quantamagazine.org/the-math-that-tells-cells-what-they-...

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https://massivesci.com/articles/vampire-bats-rabies-ebola-hiv-disea...

Researchers are abolishing an ancient epidemic — and trying to prevent the next one before it starts

Using machine learning tools and viral sequences, researchers are trying to better understand disease transmission

https://massivesci.com/articles/vampire-bats-rabies-ebola-hiv-disea...

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https://ccdd.hsph.harvard.edu/will-covid-19-go-away-on-its-own-in-w...

Seasonality of SARS-CoV-2: Will COVID-19 go away on its own in warmer weather?

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Age is not the only risk for severe coronavirus disease

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Explainer: what is contact tracing and how does it help limit the coronavirus spread?

Cardiologists are seeing infected patients whose worst symptoms are not respiratory, but cardiac.

https://www.nytimes.com/2020/03/27/health/coronavirus-cardiac-heart...

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Why the novel coronavirus became a social media nightmare

##Misinformation crime: In Iran, a fake remedy for COVID-19 infection of ingesting methanol has reportedly led to 300 deaths, and left many more sick.@@

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Tree rings could pin down Thera volcano eruption date

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* https://phys.org/news/2020-03-outcomes-people-ai-isnt-simple.html?u...

Projecting the outcomes of people's lives with AI isn't so simple

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Tiny optical cavity could make quantum networks possible

Engineers at Caltech have shown that atoms in optical cavities—tiny boxes for light—could be foundational to the creation of a quantum internet. 

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Engineers 3-D print soft, rubbery brain implants

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Researchers discover a novel chemistry to protect our crops from fungal disease

Heart attack on a chip: Scientists model conditions of ischemia on a microfluidic device

https://phys.org/news/2020-03-heart-chip-scientists-conditions-isch...

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AI tool predicts which coronavirus patients get deadly 'wet lung'

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*Social media fuels spread of COVID-19 information—and misinformation

--

$$

https://www.popsci.com/fact-check-science-study-news/

How to fact check suspicious science stories for yourself

Plagued by misleading headlines? Go straight to the source.$$

--

* https://phys.org/news/2020-03-bouncy-durable-rubber-pavements-thous...

Bouncy and durable rubber pavements could save thousands of lives, scientists say

*Bouncy and durable rubber pavements could save thousands of lives, scientists say

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How animals understand numbers influences their chance of survival

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Researchers make first direct measurement of the physical force of invading cancer cells

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New metabolism discovered in bacteria

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* 

New mechanism underlying organelle communication revealed in brown fat cells

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How at risk are you of getting a virus on an airplane?

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* Studying the mechanism for avian magnetic orientation

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Enhancing cardiac repair effectiveness with in vivo priming strategy to train stem cells

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Nerve finding unravels mystery about communication between the gut and brain

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Advances in production of retinal cells for treating blindness

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'Living drug factories' might treat diabetes and other diseases

Extreme, high temperatures may double or triple heart-related deaths

When temperatures reach extremes of an average daily temperature of 109 degrees Fahrenheit (43 C), the number of deaths from cardiovascular disease may double or triple. Researchers note that these findings raise concerns that traditionally hot regions may be especially vulnerable to heat-related cardiovascular deaths, according to new research published today in Circulation, the flagship journal of the American Heart Association.

Compared to the number of deaths on days with the lowest mortality temperature (average daily temperature of 94.5 degrees Fahrenheit (35 C), when the fewest people died), when the 24-hour average temperature was extreme (109 degrees Fahrenheit (43 C) or higher), the investigators found:

• Overall, a 3-times greater risk of dying from any cardiovascular cause;
• Men were more affected by the extreme temperatures, experiencing a 3.5 times higher death rate;
• The death rate among women was nearly 2.5 higher;
• Working-age people (ages 15-64 years) had a death rate 3.8 times higher; and
• The death rate was just over 2-times higher for people 65 and older.

To examine the effects of temperature on its own, the investigators adjusted for other environmental factors such as air pollution and humidity. Higher temperatures affected both genders and all ages differently.

When core body temperature increases, the human body tries to cool itself by shifting blood from the organs to underneath the skin. This shift causes the heart to pump more blood, putting it under significantly more stress. A collaborative group of cardiologists, environmental health specialists and epidemiologists hypothesized that increasing temperatures in hotter regions of the world could lead to increased CVD death due to extreme heat's effects on the body.

The study was limited by only having information on any cardiovascular cause of death, so it is not known whether any specific type of heart problem is more susceptible to the influence of extreme heat. Although the researchers found a strong association between extremely high temperatures and increased cardiovascular deaths, further research is needed to establish a cause and effect relationship.

More information: Barrak Alahmad et al, Cardiovascular Mortality and Exposure to Heat in an Inherently Hot Region: Implications for Climate Change, Circulation (2020). DOI: 10.1161/CIRCULATIONAHA.119.044860

https://medicalxpress.com/news/2020-03-extreme-high-temperatures-tr...

Intravenous sodium nitrite ineffective for out-of-hospital cardiac arrest

* https://medicalxpress.com/news/2020-03-intravenous-sodium-nitrite-i...

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https://joannabriggs.org/ebp/covid-19#professionals

Evidence-based resources for health professionals and health organisations $$

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More information: Critical Reviews in Oncology/Hematology DOI: 10.1016/j.critrevonec.2020.102881

The pros and cons of radiotherapy: Will it work for you?

Rare ozone hole opens over Arctic — and it’s big

https://www.nature.com/articles/d41586-020-00904-w?utm_source=Natur...

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Don't complain: The COVID-19 pandemic could have infected 90% of the world’s population and killed 40.6 million peop... to combat it.

https://www.nature.com/articles/d41586-020-00154-w?utm_source=Natur...

$$

--

https://www.sciencemag.org/news/2020/03/how-sick-will-coronavirus-m...

7d634f2dc8-44672165

How sick will the coronavirus make you? The answer may be in your genes

Peer Review: Publishing in the time of COVID-19

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Coronavirus vaccine: here are the steps it will need to go through during development

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Coronavirus: once you have antibodies, are you safe?

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$$ https://theconversation.com/bonding-with-baby-what-it-should-feel-l...

Bonding with baby: what it should feel like and how long it may take

--

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How are the most serious COVID-19 cases treated, and does the coronavirus cause lasting damage?

List of science communicators in India:

https://docs.google.com/spreadsheets/d/1lOos2tpakQTdbt95qrpfGGx4Qln...

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Here's Why Herd Immunity Won't Save Us From The COVID-19 Pandemic

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Robots, smart helmets deployed in coronavirus fight

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Physicists weigh in on the origin of heavy elements

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New method predicts which black holes escape their galaxies

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Biochemists trap and visualize an enzyme as it becomes active

Blood test detects wide range of cancers, available to at risk individuals in clinical study

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Mystery solved: The origin of the colors in the first color photographs

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Phage capsid against influenza: Perfectly fitting inhibitor prevents viral infection

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New explanation for sudden collapses of heat in plasmas can help create fusion energy on Earth

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Quantum-entangled light from a vibrating membrane

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Surfing the waves: Electrons break law to go with the flow

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Scientists list four key actions to halt global warming

--

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An international team of researchers has found that neon inside a certain massive star can consume the electrons in the core, a process called electron capture, which causes the star to collapse into a neutron star and produce a supernova.

--

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A team of cybersecurity researchers has discovered that a large number of cell phone applications contain hardcoded secrets allowing others to access private data or block content provided by users.

When warblers warn of cowbirds, blackbirds get the message

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Very impressive: Meet this very young scientist, just six and already published a research paper!
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* Researchers gain new insights into pain signaling in the brain

Three previously unknown genetic mechanisms have been discovered in causing myopia otherwise known as short or near-sightedness.

https://medicalxpress.com/news/2020-03-genetic-short-sightedness.ht...

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* https://medicalxpress.com/news/2020-03-chemicals-bpa-blood-pressure...

Chemicals used to replace BPA may lead to increased blood pressure

BPA disrupts the body's endocrine system by mimicking the hormone estrogen. BPA exposure has been linked with high blood pressure.

Based on studies over the last few decades, the U.S. Food and Drug Administration in 2012 banned the use of this chemical in baby bottles and infant formula packaging. Manufacturers often replace BPA with other chemicals such as bisphenol S (BPS) and bisphenol F (BPF). These substitute chemicals are often found in products labeled "BPA free."

However, results suggest that even low-dose exposure to all these chemicals can affect blood pressure in the offspring later in life.

Coronavirus Tests are Now Free For Every Indian – Here are a few Authorized Testing Centres list and their contact numbers. The number of the testing centres have been increased now and this is only a preliminary list.

http://www.techiyogiz.com/2020/03/coronavirus-tests-are-now-free-fo...

--

https://www.mohfw.gov.in/pdf/coronvavirushelplinenumber.pdf

India: Central Helpline Number for corona-virus: - +91-11-23978046
Helpline Numbers of States & Union Territories (UTs)

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*New Study of The Coronavirus 'Spike' Protein Could Help Explain Its Immense Spread

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*Do You Really Have to Disinfect All Groceries Now? An Expert Explains

Research: Cancer gene inhibition shows step toward beating neuroblastomas

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Skull scans reveal evolutionary secrets of fossil brains

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Physical force alone spurs gene expression, study reveals

--

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Evolutionary adaptation helped cave bears hibernate, but may have caused extinction

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Google trains chips to design themselves

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 high dopamine concentrations do not make neurons more active. However, higher dopamine levels do make the neurons remain active for a longer period of time.

More information: Local and global consequences of reward-evoked striatal dopamine release, Nature (2020). DOI: 10.1038/s41586-020-2158-3 , https://nature.com/articles/s41586-020-2158-3

The new coronavirus emerged from the global wildlife trade – and may be devastating enough to end it

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Plant disease primarily spreads via roadsides

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Research: Lockdowns need to last more than six weeks to contain COVID-19 $$

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Heavy drinking into older age adds 4 cm to waistline

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*'Cool' relief for migraine sufferers: Innovation law center helps bring wearable tech to market

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Most diets lead to weight loss and lower blood pressure, but effects largely disappear after a year

How the novel coronavirus binds to human cells

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Quarantined Italians become citizen scientists

• For 3 nights last week, 6,000 people holed up in Italy went on their balconies to take part in an unprecedented citizen-science experiment to measure light pollut....
• https://www.nature.com/articles/d41586-020-00154-w?utm_source=Natur...

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* https://news.harvard.edu/gazette/story/2020/04/to-stem-coronavirus-...

To stem the coronavirus crisis, Harvard Medical School scientists forge ahead on six key fronts

--

coronavirus crisis, science is the way out: Q&A with Neil deGrasse Tyson and Ann Druyan

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US scientists link BCG vaccination with fewer COVID-19 cases, Indian scientists hopeful but cautious

"We found that countries without universal policies of BCG vaccination, such as Italy, the Netherlands, and the United States, have been more severely affected compared to countries with universal and long-standing BCG policies," noted the researchers led by Gonzalo Otazu, assistant professor of biomedical sciences at NYIT.

The Bacillus Calmette-Guerin (BCG) vaccine, administered to millions of Indian children soon after birth to protect against tuberculosis, could be a "game-changer" in the fight against the deadly coronavirus, say US scientists. The severity of coronavirus impact may be linked to national policies on BCG childhood vaccination, the yet to be published study from the New York Institute of Technology (NYIT) states while citing the examples of Italy and the US.
We found that countries without universal policies of BCG vaccination, such as Italy, the Netherlands, and the United States, have been more severely affected compared to countries with universal and long-standing BCG policies.

According to the study, a combination of reduced morbidity and mortality could make the BCG vaccination a game-changer in the fight against COVID-19.

The BCG vaccine is part of India's universal immunisation programme and administered to millions of children at birth or soon after it.

*Bacterial Immunity: An adaptable defense

https://elifesciences.org/articles/56122?utm_source=content_alert&a...

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https://www.theguardian.com/environment/2020/apr/01/climate-crisis-...

Climate crisis may have pushed world's tropical coral reefs to tipping point of 'near-annual' bleaching
Mass bleaching seen along Great Barrier Reef could mark start of global-scale event, expert warns

--

 https://www.sciencealert.com/10-coronavirus-symptoms-you-may-not-be...

Some COVID-19 Symptoms Are Turning Out to Be Atypical. Here's What We Know So Far

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https://www.newscientist.com/article/mg24532754-600-can-you-catch-t...

Can you catch the coronavirus twice? We don’t know yet

We don’t have enough evidence yet to know if recovering from covid-19 induces immunity, or whether any immunity would give long-lasting protection against the coronavirus

--

https://techxplore.com/news/2020-04-boost-internet-home.html?utm_so...

How to boost your internet speed when everyone is working from home

--

https://techxplore.com/news/2020-04-in-flight-air-density-accurate....

Predicting in-flight air density for more accurate landing

--

https://techxplore.com/news/2020-04-d-shields-doctors-healthcare-wo...

Engineers 3-D print face shields for doctors and healthcare workers

Bioengineering biomimetic human small muscular pulmonary arteries

https://phys.org/news/2020-04-bioengineering-biomimetic-human-small...

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https://phys.org/news/2020-04-cells-protein-logic-gates.html?utm_so...

Turning cells into computers with protein logic gates. The same basic tools that allow computers to function are now being used to control life at the molecular level. The advances have implications for future medicines and synthetic biology.

--

https://phys.org/news/2020-04-next-generation-sensor-network-tracki...

Scientists develop 'backpack' computers to track wild animals in hard-to-reach habitats

--

https://medicalxpress.com/news/2020-04-geneticists-personal-medicin...

Geneticists are bringing personal medicine closer for multiracial individuals

--

https://phys.org/news/2020-04-relativity-source-quantum-exoticism.h...

Does relativity lie at the source of quantum exoticism?

--

https://phys.org/news/2020-04-invisible-visible-entangled-photons-i...

Making the invisible visible: Entangled photons for imaging and measurement techniques

--

https://techxplore.com/news/2020-04-dashboard-tray.html?utm_source=...

A dashboard tray that appears and disappears at the wave of a hand

Newly discovered memory process influences decision-making

https://medicalxpress.com/news/2020-04-newly-memory-decision-making...

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* https://medicalxpress.com/news/2020-04-cocky-kids-four-year-olds-ov...

Cocky kids: The four-year-olds with the same overconfidence as risk-taking bankers

--

https://medicalxpress.com/news/2020-04-lifestyle-memory-problems-ag...

Lifestyle changes could delay memory problems in old age, depending on our genes

--

https://medicalxpress.com/news/2020-04-natural-sunscreen-gene-vitam...

Natural sunscreen gene influences how we make vitamin D

--

https://medicalxpress.com/news/2020-04-starving-pancreatic-cancer-c...

Starving pancreatic cancer of cysteine may kill tumor cells

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* https://medicalxpress.com/news/2020-04-news-tone-content-covid-cove...

Too much news: How the tone and content of COVID-19 coverage affects mental wellbeing

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https://medicalxpress.com/news/2020-04-muscle-protein-abundant-hear...

Muscle protein abundant in the heart plays key role in blood clotting during heart attack

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https://medicalxpress.com/news/2020-04-safer-home-safe-space.html?u...

In an effort to control the spread of COVID-19, several states have issued stay-at-home orders. But for domestic violence victims, staying at home may not mean safer at home.

How large a gathering is too large during the coronavirus pandemic?

The math of social networks can create a roadmap to a group size that still curbs spread

https://www.sciencenews.org/article/coronavirus-covid19-social-gath...

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https://www.sciencenews.org/article/coronavirus-covid19-control-mea...

How coronavirus control measures could affect its global death toll

Experts analyzed contact patterns and disease severity to estimate COVID-19’s potential reach

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https://www.sciencenews.org/article/cats-animals-pets-coronavirus-c...

A cat appears to have caught the coronavirus, but it’s complicated

There is no evidence that cats can transmit the virus to people

--

https://www.the-scientist.com/features/bacteria-as-living-microrobo...

Bacteria as Living Microrobots to Fight Cancer

Coronavirus: country comparisons are pointless unless we account for these biases in testing

https://theconversation.com/coronavirus-country-comparisons-are-poi...

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https://phys.org/news/2020-04-scientists-class-receptors.html?utm_s...

Scientists discover a new class of taste receptors

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https://techxplore.com/news/2020-04-google-publish-user-govts-tackl...

Google to publish user location data to help govts tackle virus (Update)

--

https://phys.org/news/2020-04-reveal-evidence-elusive-particles-new...

New measurements reveal evidence of elusive particles in a newly-discovered superconductor

--

https://phys.org/news/2020-04-coastal-pollution-genetic-diversity-c...

Coastal pollution reduces genetic diversity of corals, reef resilience

--

https://theconversation.com/while-we-fixate-on-coronavirus-earth-is...

While we fixate on coronavirus, Earth is hurtling towards a catastrophe worse than the dinosaur extinction

--

https://techxplore.com/news/2020-04-google-art-users-photos-famous....

Google's Art Transfer allows users to transform photos as if they were painted by famous artists

--

*Genome variation gives insight into coronavirus spread

https://phys.org/news/2020-04-genome-variation-insight-coronavirus....

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https://medicalxpress.com/news/2020-04-world-biggest-left-handednes...

World's biggest study of left-handedness

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https://medicalxpress.com/news/2020-04-scientists-parasitic-infecti...

Scientists show how parasitic infection causes seizures, psychiatric illness for some

--

* https://medicalxpress.com/news/2020-04-coronavirus-cases-exponentia...

Coronavirus cases are growing exponentially: Here's what that means

https://theconversation.com/coronavirus-cases-are-growing-exponenti...

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Chilling concussed cells shows promise for full recovery

https://medicalxpress.com/news/2020-04-chilling-concussed-cells-ful...

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* https://medicalxpress.com/news/2020-04-coronavirus-body-deadly.html...

What the coronavirus does to your body that makes it so deadly

--

https://www.nature.com/articles/d41586-020-01002-7?utm_source=Natur...

Scientists decode mouse facial expressions: Artificial intelligence decodes the facial expressions of mice
Neuroscientists also uncover neural circuitry whose activity correlates with particular emotions.

--

https://www.sciencealert.com/this-bee-is-half-male-and-half-female-...

Scientists Find a Half Male, Half Female Bee, Split Right Down The Middle: gynandromorphism

--

* https://www.sciencealert.com/experts-explain-how-the-coronavirus-di...

Experts Explain The Important Reasons Why COVID-19 Differs From a Flu Pandemic

No herd immunity

Testing and treatment troubles

Six unknown factors in coronavirus models and how they could affect predictions

1. Asymptomatic spread

2. Mode of contact

3. Flouting the rules

4. Hotspots

5. The incubation period

range from one to 14 days

6. How the spread differs between countries

*  https://medicalxpress.com/news/2020-04-unknown-factors-coronavirus-...

sources of zoonotic disease

Excellent Dr Krishna. You are definitely helping the society through these bunch of science videos. 3 cheers to you.

Thanks. But home come this comment landed here instead of the discussion page. I can't give a reply here! :)

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New study identifies characteristics of patients with fatal COVID-19

https://medicalxpress.com/news/2020-04-characteristics-patients-fat...

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https://medicalxpress.com/news/2020-04-advice-health-staff-skin-mas...

Advice to health staff suffering skin damage from face masks

--

https://phys.org/news/2020-04-temperature-mechanism.html?utm_source...

How do plants know when to flower? A protein called phytochrome B, which can sense light and temperature, triggers plant growth and controls flowering time.

--

https://artdaily.cc/news/122380/Paintings-discovered-inside-the-cof...

Paintings discovered inside the coffin of a 3,000-year-old Egyptian mummy

--

https://www.sciencenews.org/article/chemistry-tweak-beets-red-juice...

Beet root's bleeds are red? A chemistry tweak can create a blue hue
Results could pave the way for a rare natural blue pigment to color food, clothes and more

--

https://www.sciencealert.com/here-s-what-we-know-so-far-about-those...

It's Estimated 1 in 4 Coronavirus Carriers Could Be Asymptomatic. Here's What We Know

A delicate remote control operation to remove a tracking collar from a tiger on an epic 13-month trek through India is carried out to avoid the device choking the animal. The feline explorer, named Walker for the roughly 3,000 kilometres (1,800 miles) of terrain it covered, has been tracked by Indian wildlife experts through forests, farms, highways and villages.

Dogs and cats ... and now a Tiger at NYC's Bronx Zoo tests positive for coronavirus

https://medicalxpress.com/news/2020-04-tiger-nyc-bronx-zoo-positive...

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Dogs, cats can't pass on coronavirus, but can test positive

https://medicalxpress.com/news/2020-03-dogs-cats-coronavirus-positi...

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https://medicalxpress.com/news/2020-02-pet-dog-quarantined-hong-kon...

Hong Kong pets face coronavirus quarantine after dog tests positive

--

https://www.nature.com/articles/d41586-020-00965-x

Coronavirus lockdowns have changed the way Earth moves

An Ingredient in Some Medicinal Mouthwashes Could Put Teeth at Great Risk of Cavities

A new study suggests oral rinses that rely on a particular chemical called chlorhexidine may actually leave your teeth more open to damage.

Although this chemical is said to be 'antibacterial', that's only true in some cases. Recent findings suggest the solution can disturb the microbiome in your mouth, leading to an abundance of lactate-producing bacteria, which makes your saliva more acidic.

That's not exactly good for your teeth. Saliva plays an important role in keeping the pH of your mouth relatively neutral, but if that changes, it might cause issues in your gums and gnashers.

Using chlorhexidine mouthwash not only decreased microbial diversity and increased acidity, it also lowered the saliva's ability to buffer pH.

Saliva lactate and glucose concentrations were elevated after using this mouthwash, and it also disrupted the conversion of nitrate into nitrite, which may support our circulation.

This is important, because the authors found increased systolic blood pressure when the real mouthwash was used. 

This weird effect has popped up in previous studies, and the authors think the use of CHX mouthwash may be more accentuated in people with high blood pressure levels. 

https://www.nature.com/articles/s41598-020-61912-4

https://www.sciencealert.com/your-mouthwash-could-be-putting-your-t...

Viruses don't have a metabolism; but some have the building blocks for one

https://phys.org/news/2020-04-viruses-dont-metabolism-blocks.html?u...

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https://phys.org/news/2020-04-breakthrough-genetic-potential-ocean-...

Breakthrough in unlocking genetic potential of ocean microbes

--

https://medicalxpress.com/news/2020-04-neuroscientists-memory-cells...

Neuroscientists find memory cells that help us interpret new situations

--

https://phys.org/news/2020-04-state.html?utm_source=nwletter&ut...

Researchers expand search for new state of matter

--

https://phys.org/news/2020-04-milky-satellites-reveal-link-dark.htm...

The Milky Way's satellites help reveal link between dark matter halos and galaxy formation

--

https://phys.org/news/2020-04-genes-juvenile-to-adult-transition-tr...

* 

Study: Genes that time juvenile-to-adult transition are triggered by a single protein

Cement vs. concrete: Their differences

There's a lot the average person doesn't know about concrete. For example, it's porous; it's the world's most-used material after water; and, perhaps most fundamentally, it's not cement.

Though many use "cement" and "concrete" interchangeably, they actually refer to two different—but related—materials: Concrete is a composite made from several materials, one of which is cement.

Cement production begins with limestone, a sedimentary rock. Once quarried, it is mixed with a silica source, such as industrial byproducts slag or fly ash, and gets fired in a kiln at 2,700 degrees Fahrenheit. What comes out of the kiln is called clinker. Cement plants grind clinker down to an extremely fine powder and mix in a few additives. The final result is cement.

Cement is then brought to sites where it is mixed with water, where it becomes cement paste. If you add sand to that paste it becomes mortar. And if you add to the mortar large aggregates—stones of a diameter of up to an inch—it becomes concrete.

What makes concrete so strong is the chemical reaction that occurs when cement and water mix—a process known as hydration.

Hydration occurs when cement and water react. During hydration, the clinker dissolves into the calcium and recombines with water and silica to form calcium silica hydrates. Calcium silica hydrates, or CSH, are the key to cement's solidity. As they form, they combine, developing tight bonds that lend strength to the material. These connections have a surprising byproduct—they make cement incredibly porous. Within the spaces between the bonds of CSH, tiny pores develop—on the scale of 3 nanometers, or around 8 millionths of an inch. These are known as gel pores. On top of this, any water that hasn't reacted to form CSH during the hydration process remains in the cement, creating another set of larger pores, called capillary pores.cement paste is so porous that 96 percent of its pores are connected.

More here:

https://phys.org/news/2020-04-cement-concretetheir-differences-oppo...

https://phys.org/news/2020-04-birds-vulnerable-extinction.html?utm_...

Innovative birds are less vulnerable to extinction

--

Scientists' warning to humanity on insect extinctions

https://phys.org/news/2020-04-scientists-humanity-insect-extinction...

--

https://phys.org/news/2020-04-lifestyle-trumps-geography-makeup-gut...

Lifestyle trumps geography in determining makeup of gut microbiome

--

https://phys.org/news/2020-04-invasive-species-charisma-easier.html...

Invasive species with charisma have it easier

--

https://medicalxpress.com/news/2020-04-frailty-impacts-blood.html?u...

Leaving its mark: How frailty impacts the blood

--

https://medicalxpress.com/news/2020-04-gut-newly-digestive-brain-ax...

Follow your gut: Newly identified digestive-brain axis controls food choice

--

https://medicalxpress.com/news/2020-04-strength-early-diabetes.html...

Evaluating grip strength to identify early diabetes

--

* https://medicalxpress.com/news/2020-04-dental-pain-anti-inflammator...

Dental pain? Reach for the anti-inflammatories, not the antibiotics

--

$$https://www.nature.com/articles/d41586-020-01027-y?utm_source=Natur...

Safely conducting essential research in the face of COVID-19

https://www.wired.com/story/opinion-dont-be-fooled-by-covid-19-carp...

“We all just need to be careful to indicate how certain we are and ...

--

https://indscicov.in/

--

https://theconversation.com/coronavirus-theres-no-one-perfect-model...

Coronavirus: there’s no one perfect model of the disease

--

https://theconversation.com/coronavirus-is-growing-exponentially-he...

Coronavirus is growing exponentially – here’s what that really mean

--

* https://www.scientificamerican.com/article/heart-damage-in-covid-pa...

Heart Damage in COVID Patients Puzzles Doctors

Up to 1 in 5 hospitalized patients have signs of heart injury. Cardiologists are trying to learn whether the virus attacks the organ

Researchers devise treatment that relieved depression in 90% of participants in small study

https://medicalxpress.com/news/2020-04-treatment-relieved-depressio...

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$$

https://medicalxpress.com/news/2020-04-coronavirus-patients-benefit...

Coronavirus patients can benefit from blood of the recovered, new study shows$$

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https://phys.org/news/2020-04-dynamics-reveal-bottles-faster.html?u...

Bubble dynamics reveal how to empty bottles faster

--

$$

https://phys.org/news/2020-04-simulations-extreme-opinions-polarize...

Simulations show extreme opinions can lead to polarized groups $$

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$$ https://medicalxpress.com/news/2020-04-covid-average-actual-infecti...

COVID-19: On average, only 6% of actual infections detected worldwide

--

https://phys.org/news/2020-04-bethe-experimentally.html?utm_source=...

Bethe strings experimentally observed

--

https://phys.org/news/2020-04-personalized-microrobots-biological-b...

Personalized microrobots swim through biological barriers, deliver drugs to cells

Hackers' new target during pandemic: video conference calls

https://techxplore.com/news/2020-04-hackers-pandemic-video-conferen...

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https://theconversation.com/social-media-fuels-wave-of-coronavirus-...

Social media fuels wave of coronavirus misinformation as users focus on popularity, not accuracy

--

China becomes world's top patent filer: UN

https://techxplore.com/news/2020-04-china-world-patent-filer.html?u...

--

https://phys.org/news/2020-04-soil-microbes-resist-disease.html?utm...

How soil microbes help plants resist disease

--

* https://phys.org/news/2020-04-evolution-team-butterfly-wings-shift....

The evolution of color: Team shows how butterfly wings can shift in hue

--

https://medicalxpress.com/news/2020-04-babies-retain-events-nap.htm...

Babies retain even detailed events during a nap

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https://www.scientificamerican.com/article/high-tech-ghost-ships-wi...

High-Tech Ghost Ships Will Set Sail sans Sailors

Maritime technology groups are building robotic vessels to cross the oceans