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Новости за 26.06.2024

Ocean's loss of oxygen caused massive Jurassic extinction: Could it happen again?

Sciencedaily.com 

Researchers have found a chemical clue in Italian limestone that explains a mass extinction of marine life in the Early Jurassic period, 183 million years ago. Volcanic activity pumped out CO2, warming oceans and lowering their oxygen levels. The findings may foretell the impact climate change and oxygen depletion might have on today's oceans.

Chemotherapy disrupts gut microbiome in patients with breast cancer

Sciencedaily.com 

Chemotherapy is known to cause behavioral side effects, including cognitive decline. Notably, the gut microbiome communicates with the brain to affect behavior, including cognition. This clinical longitudinal observational study explored whether chemotherapy-induced disruption of the gut microbiome relates to cognitive decline and circulating inflammatory signals.

Predicting changes inside astronauts' bodies during space travel through blood sample analysis

Sciencedaily.com 

The human body undergoes various transformations in space. However, a direct examination of organs and tissues is challenging. This study successfully identified these changes inside the body by analyzing tiny quantities of DNA and RNA molecules released from various tissues into the bloodstream while the astronauts were on the International Space Station (ISS).

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Researchers identify vascular changes in the brain linked to Alzheimer's disease

Sciencedaily.com 

The blood-brain barrier -- a network of blood vessels and tissues that nurtures and protects the brain from harmful substances circulating in the blood -- is disrupted in Alzheimer's disease. Now, researchers have uncovered unique molecular signatures of blood-brain barrier dysfunction that could point to new ways to diagnose and treat the disease.

Magistrate Michongwe Slaps Malawi Police: Investigate First Before Arrest, Send Suspects to Nearest Police Station

Malawi Voice.com 

Principal Resident Magistrate Roderick Michongwe has taken a swipe at the Malawi Police, criticizing their habit of arresting suspects without thorough investigations. He made the remarks when granting bail to Reverend Kondwani Gondwe, who was arrested for allegedly publishing false news and producing offensive communication. Michongwe emphasized that there was no evidence that investigations were […]

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An optical lens that senses gas

Sciencedaily.com 

A research team has developed a small optical lens, only a few millimeters in size, whose refractive behavior changes in the presence of gas. This 'intelligent' behavior of the micro-lens is enabled by the hybrid glass material from which it is made. The molecular structure of the lens consists of a three-dimensional lattice with cavities that can accommodate gas molecules, thereby affecting the optical properties of the material.

Study provides insights into the use of decodable texts in early reading instruction

Sciencedaily.com 

Reading comprehension is crucial for success in school and society but can be difficult for children initially. Decodable texts are widely believed to help by focusing on taught letter-sound relationships, aiding word decoding. Recently, a meta-analysis was conducted to examine the effectiveness of decodable texts in early reading of non-disabled learners. Findings reveal that decodable texts have a moderate impact on improving pseudoword decoding skills but only a small effect on word reading.

Towards non-toxic antifouling agents: A novel method for total synthesis of scabrolide F

Sciencedaily.com 

Norcembranolide diterpenes, isolated from the soft corals of the genus Sinularia, are important compounds for the development of new drugs, owing to their diverse biological activities. However, total synthesis methods for these compounds are scarce. Now, a team of researchers has achieved the total synthesis of scabrolide F, a norcembranolide diterpene. They also revealed its non-toxic antifouling properties. This novel method can lead to the development of new drugs and antifouling agents.

Some landfill 'burps' contain airborne PFAS

Sciencedaily.com 

Many municipal landfills 'burp' gas from decomposing organic matter rather than letting it build up. And burps from buried waste containing per- and polyfluoroalkyl substances (PFAS) can release these 'forever chemicals' into the air, say researchers. Their study reports unexpectedly high levels of airborne PFAS at three landfills and demonstrates that vented gases and liquid by-products called leachates could transport similar amounts of these contaminants to the environment.

Football / JO 2024 : La liste des USA… sans Alex Morgan

WomenSports.fr 

C’est officiel, la Team USA ira bien aux JO de Paris sans sa star Alex Morgan. Les dix-huit joueuses américaines sélectionnées pour les Jeux Olympiques de Paris ont été annoncées par Emma Hayes, récemment arrivée de Chelsea, mercredi dernier. La liste inclut Lindsey Horan, milieu de terrain de l’OL et cadre majeur d’une équipe qui […]

Kyrenia shipwreck has a new estimate for the year it sank, study says - CNN

Google.com 

  1. Kyrenia shipwreck has a new estimate for the year it sank, study says  CNN
  2. Almonds, pottery, wood help date famed Kyrenia shipwreck  Phys.org
  3. Ancient Greek ship Kyrenia gets a new sinking date  Cosmos
  4. Revised Dating Technique Places Historic Shipwreck in the Ptolemaic Empire  DISCOVER Magazine
  5. Millenia-old almonds used to date ancient shipwreck  Courthouse News Service

Decades after the famed Kyrenia shipwreck’s discovery, researchers have a new estimate of when it sank - CNN

Google.com 

  1. Decades after the famed Kyrenia shipwreck’s discovery, researchers have a new estimate of when it sank  CNN
  2. Almonds, pottery, wood help date famed Kyrenia shipwreck  Phys.org
  3. Nuts, bones, and wood help date a 2000-year-old Greek shipwreck  Popular Science
  4. Ancient Greek ship Kyrenia gets a new sinking date  Cosmos
  5. Revised Dating Technique Places Historic Shipwreck in the Ptolemaic Empire  DISCOVER Magazine

Small, adsorbent 'fins' collect humidity rather than swim through water

Sciencedaily.com 

Clean, safe water is a limited resource and access to it depends on local bodies of water. But even dry regions have some water vapor in the air. To harvest small amounts of humidity, researchers developed a compact device with absorbent-coated fins that first trap moisture and then generate potable water when heated. They say the prototype could help meet growing demands for water, especially in arid locations.

Plankton researchers urge their colleagues to mix it up

Sciencedaily.com 

A new article encourages researchers to focus their attention on mixoplankton, providing a set of methodologies to help expand our understanding of this critically important component of the marine ecosystem.