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Science News Archive 2021 - Page 201


Page 201 of 510

Studies find combination chemotherapy beneficial and cost-effective in sub-Saharan Africa

A clinical trial in Malawi showed a five-drug combination chemotherapy provided curative benefit for people diagnosed with lymphoma, compared to current standard-of-care-therapy. The treatment was also found to be cost-effective, preventing more than seven disability-adjusted life years at a lower cost per DALY prevented.

SourceUNC Lineberger Comprehensive Cancer Center·JournalThe Lancet Global Health·DateJul 22, 2021

Artificial intelligence models to analyze cancer images take shortcuts that introduce bias

A new study reveals that AI tools analyzing tumor images can make inaccurate predictions due to shortcuts introduced by institutions submitting the images. The models often rely on location-specific signatures rather than biological characteristics, leading to biased outcomes for patients from certain medical centers.

SourceUniversity of Chicago Medical Center·JournalNature Communications·DateJul 22, 2021

Higher levels of omega-3 acids in the blood increases life expectancy by almost five years

A study found that higher omega-3 acid levels in the blood are associated with a significant increase in life expectancy, similar to quitting smoking. The researchers analyzed data from over 2,200 people aged 65 and found that four types of fatty acids, including omega-3, can predict mortality risk.

SourceIMIM (Hospital del Mar Medical Research Institute)·JournalAmerican Journal of Clinical Nutrition·DateJul 22, 2021

Big data-derived tool facilitates closer monitoring of recovery from natural disasters

Researchers at Texas A&M University developed a framework to assess community resilience after natural disasters by analyzing location-based data from essential establishments. The study found that communities with low resilience experienced more flooding, but the level of impact did not necessarily correlate with recovery time.

SourceTexas A&M University·JournalJournal of The Royal Society Interface·DateJul 22, 2021

Antibiotics may help to treat melanoma

Researchers at KU Leuven found that certain antibiotics can effectively target melanoma cells' mitochondria, which are vulnerable to specific classes of antibiotics. This suggests that these antibiotics may be repurposed as anti-melanoma agents to buy time for immunotherapy.

SourceKU Leuven·JournalJournal of Experimental Medicine·DateJul 22, 2021

Study: Young workers now value respect over 'fun' perks in the workplace

A recent study found that young workers (21-34 years old) prioritize respectful communication in the workplace over trendy work perks. The researchers believe that leaders and managers can foster supportive cultures by training them on effective communication and recognizing employees' value to their organization.

SourceUniversity of Missouri-Columbia·JournalInternational Journal of Business Communication·DateJul 22, 2021

A novel method for the rapid repair of peripheral nerve injuries

Researchers at Bar-Ilan University have developed a novel method for rapid repair of peripheral nerve injuries using nerve guidance conduits filled with engineered aligned collagen gels and NGF-coated magnetic particles. This technique has shown improved axon growth and functional motor restoration in rats with peripheral nerve injury,...

SourceBar-Ilan University·JournalAdvanced Functional Materials·DateJul 21, 2021

Cell couriers deliver clue to cancer metastasis

Researchers have discovered that increased levels of protein Tumour Protein D54 can increase and decrease the movement of cancer cells, suggesting its potential role in tumour spread. The study found that reducing or increasing this protein's expression affects cell migration, with higher levels leading to more metastasis.

SourceUniversity of Warwick·JournalJournal of Cell Biology·DateJul 21, 2021

Toward one drug to treat all coronaviruses

Researchers have identified highly conserved sequences in viral proteins that could make them effective drug targets. The study found two promising sites: one overlapping the RNA binding site of nsp13 and another containing the catalytic site of nsp12, both involved in viral RNA replication and transcription.

SourceAmerican Chemical Society·JournalJournal of Proteome Research·DateJul 21, 2021

Residential proximity to oil and gas drilling linked to lower birthweights in newborns

A new study from Oregon State University found that infants born within 3 kilometers of oil and natural gas drilling facilities in Texas had slightly lower birthweights than those born before drilling began. After accounting for other potential factors, the study found a significant association between living near an active drilling si...

SourceOregon State University·JournalEnvironmental Health Perspectives·DateJul 21, 2021

To save a species, check its ID

A new decision tree tool has been developed to differentiate the endangered salt marsh harvest mouse from its abundant look-alike, the western harvest mouse. The tool uses machine learning to analyze characteristics such as belly color and tail hair, allowing for accurate identification with high accuracy.

SourceUniversity of California - Davis·JournalCalifornia Fish and Wildlife Journal·DateJul 21, 2021

Print perovskite solar cells

Researchers provide a systematic overview of printing technologies for scaling up perovskite solar cells, highlighting the key role of ink engineering in achieving high-quality thin films. The study also discusses the technical feasibility of printing additional layers and presents progress on roll-to-roll printing and stability issues.

SourceScience China Press·JournalNational Science Review·DateJul 21, 2021

How has the COVID-19 pandemic affected our dreams?

The COVID-19 pandemic has been shown to affect our sleep patterns, with a higher number of awakenings and difficulty falling asleep reported during lockdown. In contrast, post-lockdown periods saw an increase in dream recall and more lucid dreams, with people also reporting more dreams related to crowded places.

SourceWiley·JournalJournal of Sleep Research·DateJul 21, 2021

Kids eat more fruit and vegetables with longer seated lunch time

Research from the University of Illinois found that children eat more fruits and vegetables with longer seated lunch times. The study suggests that policies requiring at least 20 minutes of seated lunch time can help achieve this goal, particularly for children from low-income families who may not have resources to bring their own lunch.

Awareness without a sense of self

A recent study published in PLOS ONE explores the experience of pure consciousness during meditation, identifying 12 key factors that characterize this state. These findings provide insight into human consciousness and have implications for further research, including potential applications beyond meditation practices.

Association between COVID-19 exposure, self-reported compliance with public health guidelines among essential employees at an institution of higher education

A study evaluated self-reported protective behaviors and SARS-CoV-2 infection rates among in-person employees during the first six months of the pandemic. The research found a significant association between COVID-19 exposure and reduced compliance with public health guidelines.

SourceJAMA Network·JournalJAMA Network Open·DateJul 21, 2021