Gastric cancer, Q fever, Legionnaires' disease, whooping cough—though the infectious bacteria that cause these dangerous diseases are each different, they all utilize the same molecular machinery to infect human cells. Bacteria use this machinery, called a Type IV secretion system (T4SS), to inject toxic molecules into cells and also to spread genes for antibiotic resistance to fellow bacteria. Now, researchers at Caltech have revealed the 3-D molecular architecture of the T4SS from the human pathogen Legionella pneumophila with unprecedented details. This could in the future enable the development of precisely targeted antibiotics for the aforementioned diseases.
* This article was originally published here
Sunday, 19 May 2019
Scientists capture first-ever video of body's safety test for T-cells
For the first time, immunologists from The University of Texas at Austin have captured on video what happens when T-cells—the contract killers of the immune system, responsible for wiping out bacteria and viruses—undergo a type of assassin-training program before they get unleashed in the body. A new imaging technique that allowed for the videos, described today in the journal Nature Communications, holds promise for the fight against autoimmune disorders such as Type 1 diabetes.
* This article was originally published here
* This article was originally published here
'Foldable' PC? Lenovo ThinkPad laptop screen bends in half like a book
Samsung has gained a lot attention lately for its Galaxy Fold hybrid smartphone/tablet, though given the recent display snags that have prompted a delay in the product's release, not necessarily for all the right reasons.
* This article was originally published here
* This article was originally published here
First anticoagulant approved for preventing VTE recurrence in children
(HealthDay)—Fragmin (dalteparin sodium) injection has been granted the first approval for subcutaneous use in preventing recurrence of symptomatic venous thromboembolism (VTE) in children aged 1 month or older, the U.S. Food and Drug Administration announced.
* This article was originally published here
* This article was originally published here
Researchers imagine a cheaper, fairer marketplace for digital goods
E-commerce is sizzling. Last year, consumers spent more than $517 billion online with US merchants, up 15 percent from the year before, according to Internet Retailer.
* This article was originally published here
* This article was originally published here
New machine learning algorithm can predict age and gender from just your Twitter profile
A new "demographic inference" tool developed by academics can make predictions based solely on the information in a person's social media profile (i.e. screen name, biography, profile photo, and name). The tool—which works in 32 languages—could pave the way for views expressed on social media to be factored in to popular survey methods.
* This article was originally published here
* This article was originally published here
UN chief's call to 'save the Pacific to save the world'
UN Secretary-General Antonio Guterres said it was vital "to save the Pacific to save the world" as he wrapped up his brief South Pacific tour in Vanuatu on Saturday.
* This article was originally published here
* This article was originally published here
Experimental brain-controlled hearing aid decodes, identifies who you want to hear
Our brains have a remarkable knack for picking out individual voices in a noisy environment, like a crowded coffee shop or a busy city street. This is something that even the most advanced hearing aids struggle to do. But now Columbia engineers are announcing an experimental technology that mimics the brain's natural aptitude for detecting and amplifying any one voice from many. Powered by artificial intelligence, this brain-controlled hearing aid acts as an automatic filter, monitoring wearers' brain waves and boosting the voice they want to focus on.
* This article was originally published here
* This article was originally published here
Black women more likely to die of breast cancer, especially in the South
When Felicia Mahone was 27, she felt her breast and found a mass. Breast cancer had killed nearly all the women in her family—her mother, two aunts and two cousins. Her doctor, though, downplayed the lump, assuring her everything would be all right.
* This article was originally published here
* This article was originally published here
Human capital benefits of military boost economy by billions
A recent study from North Carolina State University finds that U.S. government spending on military personnel has a positive impact on the nation's human capital—essentially improving the American workforce. Using a new computer model, the study estimates the economic impact of this human capital improvement to be $89.8 billion for 2019 alone.
* This article was originally published here
* This article was originally published here
Facebook breakup could boost China rivals: Sandberg
Facebook chief operating officer Sheryl Sandberg said Friday a breakup of big US technology would not address "underlying issues" facing the sector and suggested that such a move could help rivals in China.
* This article was originally published here
* This article was originally published here
Tester eyes unhackable claim on USB flash drive
When the unhackable turns hackable you know there will be lots of noise. Case in point: The eyeDisk USB flash drive. Passwords exposed in clear text were discovered.
* This article was originally published here
* This article was originally published here
Missouri, latest US state to restrict abortion
The Missouri House passed a bill on Friday banning abortions once a fetal heartbeat is detected, making it the latest US state to pass restrictions on ending a pregnancy.
* This article was originally published here
* This article was originally published here
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