There is a regulated somatic hypermutation that enhances antibodies affinity maturation
We used an experimental and computational model to track GC B cell division in mice and investigate its contribution to total GC responses. We observed that mutation-free clonal bursts contributed disproportionately to overall number of B cells and were highly enriched within high-affinity clones. We simulated a case where there was a constant amount of T cell help in the case of 7a.
The bird brains help scientists with their research
Researchers have found that a human speech-sensing brain region, the frontal cortex, is active during the production of diverse social communication calls in marmoset monkeys. They also discovered that this activity is mediated by the parietal circuit in the frontal cortex, an area of the brain that is not well known for its role in social communication.
The lysis-causing neutrophils shield the skin
quantification of the number of neutrophils per volume area in the skin of CreNEG, Tgfbrflox and wild-type mice using means of atomic force microscopy. Data are presented as mean values s.e.m., compared by two-sided unpaired student’s t-test. Data are presented as mean values s.e.m, compared by a non-comparison test to determine p-values.
The rise in global sea level was revealed from North Sea peats
In this study, we compared the results of input ice-sheet reconstruction and generalized sea-level equation for Southern North Sea with and without rotation of Earth. The results showed negligible differences across the study period, while comparison of the results from the 1D GIA model with and without rotation showed negligible Differences across the study period.
Babies have memories so why can’t we?
A Yale University study has claimed that fMRI (magnetic resonance imaging) scans of babies can help them identify their first memories. Researchers inserted a fMRI bottle in the baby’s mouth to show them images that they had never seen before, including a dog toy, a woman’s face, and a canyon near a waterfall, among others. The babies showed a higher level of activity during the scans.
Data shows that dark energy is getting weaker
An international group of researchers has revealed that the expansion of the universe is at the risk of collapsing on itself over billions of years due to a weakened dark energy. “We thought… universe would keep expanding…at a faster rate. Now, it’s back to the table that the expansion also has the possibility that it will stop,” said one of the researchers.
Zelenskyy and Trump are talking after Trump’s phone call
Ukraine’s President Volodymyr Zelenskyy said that Russian President Vladimir Putin’s call with US President Donald Trump on Tuesday was “the beginning of the end of this war” between Russia and Ukraine. Zelenskyy added, “Putin’s words are very different from reality.” “What Putin and Trump want to see in Ukraine’s Security Service are threatening to destroy the civilian sector,” he further said.
How bad could the Measles become in the US?
US Secretary of Health and Human Services (HHS) John Kennedy Jr has said vaccinations are important in fighting diseases like measles and mumps. “There’s no doubt that vaccines are critical to the prevention of diseases like measles and mumps,” he said. However, it’s not known if there is any relationship between the vaccination status of children with measles and autism and the incidence of autism.
Two astronauts from NASA return to Earth after a long trip in space
NASA astronauts Suni Williams and Billy Wilmore returned to Earth from space on Tuesday after spending nine months at International Space Station. They were among the first crew members to be sent to space under NASA’s Commercial Crew Program. The return flight was delayed because of issues with the Starliners flight to the space station.
The Israelis took to the streets after the strikes on Gaza
Israel said that it had intercepted a ballistic missile fired from Yemen toward Israel on Tuesday, a day after carrying out aerial attacks on Gaza Strip. After Israel resumed the war against Hamas, the Israeli military said it intercepted a ballistic missile fired from Yemen towards Israel. Over 400 people have been killed in Gaza during the war between Israel and Hamas.