The fantastic Supercomputing 2024 show is coming back to Atlanta this year. If last year was any indication, there will be plenty of coffee flowing and lots of discussions around […]

The post Top500 Wild Cards Could Add Thrills to Supercomputing 2024 Show appeared first on HPCwire.

Thanks to increased funding from the European Union and stepped-up collaboration between the Commission-supported EuroHPC initiative and EU member states Europe has become one of the global leaders in HPC […]

The post Anders Jensen Discusses EuroHPC Ahead of SC24 appeared first on HPCwire.

Genetic-testing lab 23andMe plans to cut its workforce by 40% and end its therapeutics program in an effort to cut costs, the company announced Monday.

A man drove a vehicle into a crowd at a sports center in Zhuhai, China, killing 35 people and injuring 43 others, police said.

The Mediterranean island nation of Cyprus signed the U.S.-led Artemis Accords on Wednesday, becoming the 46th signatory to the agreement that establishes principles for the safe exploration of space.

From hugging to hypnosis, these stress relievers are backed by serious research—find out which one works best for you.

The most common ADHD symptoms in adults are often different to those in children.

Here's a wild stat: nearly one-third of the world's food production goes to waste each year, a major contributor to the climate crisis. Farmer and UN climate champion Gonzalo Muñoz sheds light on the international negotiations aimed at turning the food system into a climate solution, rather than part of the problem — and shows the progress already underway.

"Intuition helps us see the big picture," says filmmaker and sustainability leader Hrund Gunnsteinsdóttir. Reflecting on her work at the UN, she outlines three ways innsæi (the Icelandic word for "intuition") can help humanity face our greatest existential threats — urging us to use our inner wisdom as a guide for essential change.

In this in-depth discussion on the implications of Donald Trump’s re-election as US president, geopolitical expert Ian Bremmer explores the key issues that shaped the result — as well as the coming shifts in US foreign policy, from the Russia-Ukraine conflict to the US-China relationship and the Middle East. Learn more about the economic pressures, complex global dynamics and central personalities (including Elon Musk) that will define a second Trump presidency. (This live conversation, recorded on November 7, 2024, was hosted by TED’s Helen Walters.)

Did you grow up in a world void of social media platforms? Then, you’re probably the last ‘lucky’ generation. A part of Generation Y and most of Generation Z have been raised alongside the internet and social media. Individuals belonging to the latter have practically been raised by such platforms, as they interact with strangers […]

The post Sacrificing the Human Psyche at the Altar of Social Media? 4 Concerning Ill-Effects to Know first appeared on What is Psychology?.

Chief technology officers are facing an unprecedented test of digital preparedness due to the coronavirus pandemic, struggling with shortfalls of available learning devices and huge Wi-Fi access challenges.

Schools are slowly figuring out how to balance thinking globally with acting locally, and recognizing that some key skills are valuable no matter where students end up living.

The Maryland State Department of Education "inappropriately stored" personal information of 1.4 million students and more than 230,000 teachers, leaving them vulnerable to potential bad actors, according to an audit published earlier this month.

Chief technology officers are facing an unprecedented test of digital preparedness due to the coronavirus pandemic, struggling with shortfalls of available learning devices and huge Wi-Fi access challenges.

The state, which earned a D-plus, has struggled with school finance issues and endured teacher strikes and battles over pay, but also earned B-plus for funding equity.

New Jersey's Camden takeover in context.

Utah education officials have abruptly canceled a $44 million contract with a Minnesota-based standardized-testing company amid a flurry of technological glitches that have created uncertainty about whether this year's test scores will be validated.

Schools are slowly figuring out how to balance thinking globally with acting locally, and recognizing that some key skills are valuable no matter where students end up living.

Chief technology officers are facing an unprecedented test of digital preparedness due to the coronavirus pandemic, struggling with shortfalls of available learning devices and huge Wi-Fi access challenges.

This Quality Counts 2019 Highlights Report captures all the data you need to assess your state's performance on key educational outcomes.

Kenzie Lalonde will become the first woman play-by-play announcer for an NHL team's TV broadcasts in Canada. Reactions and endorsements have poured in.

The Vancouver Canucks take on the Calgary Flames on Tuesday night.

The New Jersey Devils will face former teammates Tomas Nosek, Jesper Boqvist, AJ Greer, and Dmitry Kulikov on Tuesday night in their game against the Florida Panthers.

Timo Meier scored the go-ahead goal late in the second period, Jacob Markstrom made 33 saves and the New Jersey Devils snapped Florida’s seven-game winning streak by beating the Panthers 4-1 on Tuesday night.

Who is the best player in Penguins' history to wear #64?

Leon Draisaitl had two goals, including the overtime winner, and Connor McDavid had a goal and three assists to move one point shy of 1,000 for his career as the Edmonton Oilers beat the New York Islanders 4-3 on Tuesday night.

Nothing has changed at the top of the second 2024 College Football Playoff rankings.

Penn State moved up in this week's College Football Playoff rankings.

Penn State moved up two spots to fourth Tuesday night in the second College Football Playoff rankings of the season. The Nittany Lions (8-1) were projected as the sixth seed in the 12-team playoff and would play 11th-seeded Mississippi in the first round Dec. 20 or 21 at Beaver Stadium in a rematch of last year’s Peach Bowl. In the initial rankings last week, Penn State was ranked sixth, ...

The state, which earned a D-plus, scored low on the Chance for Success Index, which tracks a host of socioeconomic factors that can affect the educational environment.

As Oklahoma teachers prepare for day four of their statewide walkout, here's a guide to the larger picture of teacher protests.

One more teacher was elected to state legislature in a closely contested race.

Nov. 10—STORRS — Paige Bueckers headed to the bench for her first break of the game just 35 seconds before halftime Sunday at sold-out Gampel Pavilion. Judging by the way the UConn star almost effortlessly dominated play, Bueckers still looked fairly fresh. She already had piled up 19 points. Then again, South Florida certainly must have been tired of watching Bueckers score in a variety of ...

The No. 4 Texas Longhorns kicked off their season with a 119-47 win over Southeast Missouri State (SEMO) on Sunday at Moody Center. This victory marked Texas' 13th consecutive home opener win, establishing a strong start to the 2024-2

Janiah Barker had 18 points and 11 rebounds, Lauren Betts had 17 points and 12 rebounds and the No. 5 UCLA women rolled past Pepperdine 91-54 on Tuesday. The Bruins (3-0) started the game with an 18-0 run. Ornela Muca, who led Pepperdine (1-2) with 20 points, made a 3-pointer to stop the run.

Early in the second half, Ohio State freshman Jaloni Cambridge went down with an apparent lower-back injury.

Alexis Markowski scored 22 points, Natalie Potts had a double-double and No. 21 Nebraska cruised to an 84-58 win over Southern on Tuesday night. Potts had 17 points and 12 rebounds, eight on the offensive end, for the Cornhuskers (3-0). Alberte Rimdal added 12 points.

JuJu Watkins had 21 points, nine assists and six steals to help No. 3 Southern California trounce Cal State Northridge 124-39 on Tuesday night. The Trojans (3-0) had six players in double figures, including Kiki Iriafen with 15 points and Kayleigh Heckel with 14 points off the bench. All 13 Trojans who played scored.

Recent visual experience heavily influences our visual perception, but how neuronal activity is reshaped to alter and improve perceptual discrimination remains unknown. We recorded from populations of neurons in visual cortical area V4 while two male rhesus macaque monkeys performed a natural image change detection task under different experience conditions. We found that maximizing the recent experience with a particular image led to an improvement in the ability to detect a change in that image. This improvement was associated with decreased neural responses to the image, consistent with neuronal changes previously seen in studies of adaptation and expectation. We found that the magnitude of behavioral improvement was correlated with the magnitude of response suppression. Furthermore, this suppression of activity led to an increase in signal separation, providing evidence that a reduction in activity can improve stimulus encoding. Within populations of neurons, greater recent experience was associated with decreased trial-to-trial shared variability, indicating that a reduction in variability is a key means by which experience influences perception. Taken together, the results of our study contribute to an understanding of how recent visual experience can shape our perception and behavior through modulating activity patterns in the mid-level visual cortex.

Vertebrate nervous systems use the axon initial segment (AIS) to initiate action potentials and maintain neuronal polarity. The microtubule-associated protein tripartite motif containing 46 (TRIM46) was reported to regulate axon specification, AIS assembly, and neuronal polarity through the bundling, or fasciculation, of microtubules in the proximal axon. However, these claims are based on TRIM46 knockdown in cultured neurons. To investigate TRIM46 function in vivo, we examined male and female TRIM46 knock-out mice. Contrary to previous reports, we find that TRIM46 is dispensable for axon specification and AIS formation. TRIM46 knock-out mice are viable, have normal behavior, and have normal brain structure. Thus, TRIM46 is not required for AIS formation, axon specification, or nervous system function. However, we confirm that TRIM46 is required for microtubule fasciculation. We also show TRIM46 enrichment in the first ~100 μm of axon occurs independently of ankyrinG (AnkG) in vivo, although AnkG is required to restrict TRIM46 only to the AIS. Our results highlight the need for further investigation of the mechanisms by which the AIS and microtubules interact to shape neuronal structure and function.

Injuries to the central nervous system (CNS) can cause severe neurological deficits. Axonal regrowth is a fundamental process for the reconstruction of compensatory neuronal networks after injury; however, it is extremely limited in the adult mammalian CNS. In this study, we conducted a loss-of-function genetic screen in cortical neurons, combined with a Web resource-based phenotypic screen, and identified synaptotagmin 4 (Syt4) as a novel regulator of axon elongation. Silencing Syt4 in primary cultured cortical neurons inhibits neurite elongation, with changes in gene expression involved in signaling pathways related to neuronal development. In a spinal cord injury model, inhibition of Syt4 expression in cortical neurons prevented axonal sprouting of the corticospinal tract, as well as neurological recovery after injury. These results provide a novel therapeutic approach to CNS injury by modulating Syt4 function.

Large-scale genome-wide association studies (GWASs) have associated intronic variants in PDE4B, encoding cAMP-specific phosphodiesterase-4B (PDE4B), with increased risk for post-traumatic stress disorder (PTSD), as well as schizophrenia and substance use disorders that are often comorbid with it. However, the pathophysiological mechanisms of genetic risk involving PDE4B are poorly understood. To examine the effects of PDE4B variation on phenotypes with translational relevance to psychiatric disorders, we focused on PDE4B missense variant M220T, which is present in the human genome as rare coding variant rs775201287. When expressed in HEK-293 cells, PDE4B1-M220T exhibited an attenuated response to a forskolin-elicited increase in the intracellular cAMP concentration. In behavioral tests, homozygous Pde4b^M220T male mice with a C57BL/6JJcl background exhibited increased reactivity to novel environments, startle hyperreactivity, prepulse inhibition deficits, altered cued fear conditioning, and enhanced spatial memory, accompanied by an increase in cAMP signaling pathway-regulated expression of BDNF in the hippocampus. In response to a traumatic event (10 tone–shock pairings), neuronal activity was decreased in the cortex but enhanced in the amygdala and hippocampus of Pde4b^M220T mice. At 24 h post-trauma, Pde4b^M220T mice exhibited increased startle hyperreactivity and decreased plasma corticosterone levels, similar to phenotypes exhibited by PTSD patients. Trauma-exposed Pde4b^M220T mice also exhibited a slower decay in freezing at 15 and 30 d post-trauma, demonstrating enhanced persistence of traumatic memories, similar to that exhibited by PTSD patients. These findings provide substantive mouse model evidence linking PDE4B variation to PTSD-relevant phenotypes and thus highlight how genetic variation of PDE4B may contribute to PTSD risk.

Experience- and activity-dependent transcription is a candidate mechanism to mediate development and refinement of specific cortical circuits. Here, we demonstrate that the activity-dependent transcription factor myocyte enhancer factor 2C (MEF2C) is required in both presynaptic layer (L) 4 and postsynaptic L2/3 mouse (male and female) somatosensory (S1) cortical neurons for development of this specific synaptic connection. While postsynaptic deletion of Mef2c weakens L4 synaptic inputs, it has no effect on inputs from local L2/3, contralateral S1, or the ipsilateral frontal/motor cortex. Similarly, homozygous or heterozygous deletion of Mef2c in presynaptic L4 neurons weakens L4 to L2/3 excitatory synaptic inputs by decreasing presynaptic release probability. Postsynaptic MEF2C is specifically required during an early postnatal, experience-dependent, period for L4 to L2/3 synapse function, and expression of transcriptionally active MEF2C (MEF2C-VP16) rescues weak L4 to L2/3 synaptic strength in sensory-deprived mice. Together, these results suggest that experience- and/or activity-dependent transcriptional activation of MEF2C promotes development of L4 to L2/3 synapses. Additionally, MEF2C regulates the expression of many pre- and postsynaptic genes in postnatal cortical neurons. Interestingly, MEF2C was necessary for activity-dependent expression of many presynaptic genes, including those that function in transsynaptic adhesion and neurotransmitter release. This work provides mechanistic insight into the experience-dependent development of specific cortical circuits.

The 2016-17 Programme of Work and Budget will consolidate the existing actions within the Medium Term Plan and the Strategic Framework, emphasizing areas to reflect recent trends and developments, with [...]