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

Nearly 45 percent of children in rural McDowell County, West Virginia do not live with their parents and many are being raised by grandparents.

The West Virginia House of Delegates passed its version of a sweeping education omnibus bill, which would allow the state's first charter schools.

This Quality Counts 2020 Highlights Report captures all the data you need to assess your state's performance on key educational outcomes.

This Quality Counts 2020 Highlights Report captures all the data you need to assess your state's performance on key educational outcomes.

Terris Todd, a former teacher and school administrator in the Battle Creek, Mich., schools, is the ethnic vice chair of the Michigan Republican Party.

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

This Quality Counts 2020 Highlights Report captures all the data you need to assess your state's performance on key educational outcomes.

The court declined to take up an appeal backed by school groups of a ruling allowing some property taxpayers challenge their assessments in federal court.

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.

Guo-qiang Bi
Dec 15, 1998; 18:10464-10472
Articles

Yulia Lerner
Feb 23, 2011; 31:2906-2915
BehavioralSystemsCognitive

Matthew F. Glasser
Aug 10, 2011; 31:11597-11616
BehavioralSystemsCognitive

As evidence mounts that the cardiac-sympathetic nervous system reacts to challenging cognitive settings, we ask if these responses are epiphenomenal companions or if there is evidence suggesting a more intertwined role of this system with cognitive function. Healthy male and female human participants performed an approach-avoidance paradigm, trading off monetary reward for painful electric shock, while we recorded simultaneous electroencephalographic and cardiac-sympathetic signals. Participants were reward sensitive but also experienced approach-avoidance "conflict" when the subjective appeal of the reward was near equivalent to the revulsion of the cost. Drift-diffusion model parameters suggested that participants managed conflict in part by integrating larger volumes of evidence into choices (wider decision boundaries). Late alpha-band (neural) dynamics were consistent with widening decision boundaries serving to combat reward sensitivity and spread attention more fairly to all dimensions of available information. Independently, wider boundaries were also associated with cardiac "contractility" (an index of sympathetically mediated positive inotropy). We also saw evidence of conflict-specific "collaboration" between the neural and cardiac-sympathetic signals. In states of high conflict, the alignment (i.e., product) of alpha dynamics and contractility were associated with a further widening of the boundary, independent of either signal's singular association. Cross-trial coherence analyses provided additional evidence that the autonomic systems controlling cardiac-sympathetics might influence the assessment of information streams during conflict by disrupting or overriding reward processing. We conclude that cardiac-sympathetic control might play a critical role, in collaboration with cognitive processes, during the approach-avoidance conflict in humans.

The GluN3A subunit of N-methyl-D-aspartate receptors (NMDARs) plays an established role in synapse development, but its contribution to neural circuits in the adult brain is less clear. Recent work has demonstrated that in select cell populations, GluN3A assembles with GluN1 to form GluN1/GluN3A receptors that are insensitive to glutamate and instead serve as functional excitatory glycine receptors (eGlyRs). Our understanding of these eGlyRs, and how they contribute to intrinsic excitability and synaptic communication within relevant networks of the developing and the mature brain, is only beginning to be uncovered. Here, using male and female mice, we demonstrate that GluN3A subunits are enriched in the adult ventral hippocampus (VH), where they localize to synaptic and extrasynaptic sites and can assemble as functional eGlyRs on CA1 pyramidal cells. GluN3A expression was barely detectable in the adult dorsal hippocampus (DH). We also observed a high GluN2B content in the adult VH, characterized by slow NMDAR current decay kinetics and a high sensitivity to the GluN2B-containing NMDAR antagonist ifenprodil. Interestingly, the GluN2B enrichment in the adult VH was dependent on GluN3A as GluN3A deletion accelerated NMDAR decay and reduced ifenprodil sensitivity in the VH, suggesting that GluN3A expression can regulate the balance of conventional NMDAR subunit composition at synaptic sites. Lastly, we found that GluN3A knock-out also enhanced both NMDAR-dependent calcium influx and NMDAR-dependent long-term potentiation in the VH. Together, these data reveal a novel role for GluN3A and eGlyRs in the control of ventral hippocampal circuits in the mature brain.

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.

We used virus-mediated anterograde and retrograde tracing, optogenetic modulation, immunostaining, in situ hybridization, and patch-clamp recordings in acute brain slices to study the release mechanism and μ-opioid modulation of the dual glutamatergic/GABAergic inputs from the ventral tegmental area and supramammillary nucleus to the granule cells of the dorsal hippocampus of male and female mice. In keeping with previous reports showing that the two transmitters are released by separate active zones within the same terminals, we found that the short-term plasticity and pharmacological modulation of the glutamatergic and GABAergic currents are indistinguishable. We further found that glutamate and GABA release at these synapses are both virtually completely mediated by N- and P/Q-type calcium channels. We then investigated μ-opioid modulation of these synapses and found that activation of μ-opioid receptors (MORs) strongly inhibits the glutamate and GABA release, mostly through inhibition of presynaptic N-type channels. However, the modulation by MORs of these dual synapses is complex, as it likely includes also a disinhibition due to downmodulation of local GABAergic interneurons which make direct axo-axonic contacts with the dual glutamatergic/GABAergic terminals. We discuss how this opioid modulation may enhance LTP at the perforant path inputs, potentially contributing to reinforce memories of drug-associated contexts.

Plasticity in the subcortical motor basal ganglia–thalamo–cerebellar network plays a key role in the acquisition and control of long-term memory for new procedural skills, from the formation of population trajectories controlling trained motor skills in the striatum to the adaptation of sensorimotor maps in the cerebellum. However, recent findings demonstrate the involvement of a wider cortical and subcortical brain network in the consolidation and control of well-trained actions, including a brain region traditionally associated with declarative memory—the hippocampus. Here, we probe which role these subcortical areas play in skilled motor sequence control, from sequence feature selection during planning to their integration during sequence execution. An fMRI dataset (N = 24; 14 females) collected after participants learnt to produce four finger press sequences entirely from memory with high movement and timing accuracy over several days was examined for both changes in BOLD activity and their informational content in subcortical regions of interest. Although there was a widespread activity increase in effector-related striatal, thalamic, and cerebellar regions, in particular during sequence execution, the associated activity did not contain information on the motor sequence identity. In contrast, hippocampal activity increased during planning and predicted the order of the upcoming sequence of movements. Our findings suggest that the hippocampus preorders movements for skilled action sequences, thus contributing to the higher-order control of skilled movements that require flexible retrieval. These findings challenge the traditional taxonomy of episodic and procedural memory and carry implications for the rehabilitation of individuals with neurodegenerative disorders.

Estimating the direction of functional connectivity (FC) can help further elucidate complex brain function. However, the estimation of directed FC at the voxel level in fMRI data, and evaluating its performance, has yet to be done. We therefore developed a novel directed seed-based connectivity analysis (SCA) method based on normalized pairwise Granger causality that provides greater detail and accuracy over ROI-based methods. We evaluated its performance against 145 cortical retrograde tracer injections in male and female marmosets that were used as ground truth cellular connectivity on a voxel-by-voxel basis. The receiver operating characteristic (ROC) curve was calculated for each injection, and we achieved area under the ROC curve of 0.95 for undirected and 0.942 for directed SCA in the case of high cell count threshold. This indicates that SCA can reliably estimate the strong cellular connections between voxels in fMRI data. We then used our directed SCA method to analyze the human default mode network (DMN) and found that dlPFC (dorsolateral prefrontal cortex) and temporal lobe were separated from other DMN regions, forming part of the language-network that works together with the core DMN regions. We also found that the cerebellum (Crus I-II) was strongly targeted by the posterior parietal cortices and dlPFC, but reciprocal connections were not observed. Thus, the cerebellum may not be a part of, but instead a target of, the DMN and language-network. Summarily, our novel directed SCA method, visualized with a new functional flat mapping technique, opens a new paradigm for whole-brain functional analysis.

The precise regulation of Ca²⁺ signals plays a crucial role in the physiological functions of neurons. Here, we investigated the rapid effect of glucocorticoids on Ca²⁺ signals in cultured hippocampal neurons from both female and male rats. In cultured hippocampal neurons, glucocorticoids inhibited the spontaneous somatic Ca²⁺ spikes generated by Kv2.1-organized Ca²⁺ microdomains. Furthermore, glucocorticoids rapidly reduced the cell surface expressions of Kv2.1 and Ca_V1.2 channels in hippocampal neurons. In HEK293 cells transfected with Kv2.1 alone, glucocorticoids significantly reduced the surface expression of Kv2.1 with little effect on K⁺ currents. In HEK293 cells transfected with Ca_V1.2 alone, glucocorticoids inhibited Ca_V1.2 currents but had no effect on the cell surface expression of Ca_V1.2. Notably, in the presence of wild-type Kv2.1, glucocorticoids caused a decrease in the surface expression of Ca_V1.2 channels in HEK293 cells. However, this effect was not observed in the presence of nonclustering Kv2.1S586A mutant channels. Live-cell imaging showed that glucocorticoids rapidly decreased Kv2.1 clusters on the plasma membrane. Correspondingly, Western blot results indicated a significant increase in the cytoplasmic level of Kv2.1, suggesting the endocytosis of Kv2.1 clusters. Glucocorticoids rapidly decreased the intracellular cAMP concentration and the phosphorylation level of PKA in hippocampal neurons. The PKA inhibitor H89 mimicked the effect of glucocorticoids on Kv2.1, while the PKA agonist forskolin abrogated the effect. In conclusion, glucocorticoids rapidly suppress Ca_V1.2-mediated Ca²⁺ signals in hippocampal neurons by promoting the endocytosis of Kv2.1 channel clusters through reducing PKA activity.

The Smithsonian Design Triennial presents 25 commissions that explore the physical and conceptual ideas of shelter and refuge

FAO Director-General José Graziano da Silva today praised UN Secretary-General Ban Ki Moon for his support in the fight against hunger at a meeting with FAO member countries, the Committee [...]

Tens of thousands of farmers are bringing in their first rice harvest just six months after one of the worst typhoons to ever hit the Philippines left their fields in [...]

Prince Laurent of Belgium was today appointed FAO Special Ambassador for Forests and the Environment.

The announcement was made by FAO Director-General José Graziano da Silva at the Organization’s Committee on [...]

Santiago, Chile- The declaration of the XXI Specialized Meeting on Family Farming of MERCOSUR (REAF, in Spanish) held last week in Argentina, acknowledged the advances promoted by FAO’s Director General, [...]

Milan - European governments must help combat [...]

FAO Director-General José Graziano da Silva today appointed Jacques Diouf as Special Envoy for the Horn of Africa and the Sahel.

In his new role, the former Director-General Jacques Diouf will [...]

Cancun, Mexico. On [...]

From the visits of Prince Charles and theGlobal Indigenous Youth Caucus (GIYC) to headquarters, to the Director-General’s ongoing visit to crisis-stricken parts of Africa, and the release of new FAO [...]

I am convinced that the only path to lasting peace in Colombia consists of dialogue, negotiation, cooperation, inclusion and fairness – which is also the high road to sustainable development [...]

Rome - The Food and Agriculture Organization of the United Nations (FAO) and Grow Asia, a multi-stakeholder partnership platform that brings together farmers, the private sector, governments, [...]

Team on ground regrouped; strengthened with surge personnel; Declaration of corporate scale-up response

The appendix may not be as useless as commonly thought.

Christopher Gray | Smithsonian Magazine’s 2016 American Ingenuity Award Winner for Youth Achievement Christopher Gray is the founder and CEO of Scholly, the groundbreaking web and mobile app that matches current or future college students who need financial support with scholarships that can help them. Scholly has been downloaded 850,000 times and has connected college students with some $50 million in scholarships. Philadelphia-based Gray, an ABC “Shark Tank” winner and recipient of a $100,000 grant from philanthropist Steve Case’s Rise of the Rest competition, sees his digital platform as a 21st-century tool for helping countless young Americans achieve their college dreams without piling on crushing debt.

In about four billion years from now, the Milky Way and Andromeda galaxies will crash together Visualization: NASA, ESA, and F. Summers, STScI Simulation credit: NASA, ESA, G. Besla, Columbia University, and R. van der Marel, STScI

Zookeepers at the National Zoo keep orangutans mentally stimulated with an innovative use of iPads

Cellist Yo-Yo Ma talks with the founder of the Girls Computing League about the promise of her generation

"Be prepared” might not cover it when it comes to super storms.

Megan Leftwich, an engineering professor at George Washington University, is building a robotic flipper based on her observations of sea lions

Yacouba Sawadogo, a farmer from Burkina Faso, has become a pioneer in the fight against desertification – succeeding where many international agencies have failed

Have you ever wondered if the Leaning Tower of Pisa is a catastrophe waiting to happen? In this one-minute video, Ask Smithsonian host Eric Schulze explains how architects and engineers spent the last eight hundred years or so making things go from bad to worse, bringing the gravity-defying tower to the brink of disaster

Christopher Nolan's epic new film "Oppenheimer" is no mere biopic… nor is it the first attempt to capture the father of the atomic bomb in fiction. We look at prior dramatizations of this very complicated man—including one wherein J. Robert Oppenheimer played himself!—and examine why they worked or didn't. In this episode: Physicist-turned-photographer Minesh Bacrania shares his experience photographing inside the top-secret labs at Los Alamos National Laboratory, where J. Robert Oppenheimer and other scientists created the first nuclear weapon. Next, with Christopher Nolan’s film Oppenheimer exceeding commercial expectations, Smithsonian magazine writer Andy Kifer discusses the complexities of Oppenheimer's genius and how prior attempts to depict him in film and television and on stage have fared. Read Andy Kifer’s “The Real Story Behind Christopher Nolan’s Oppenheimer” here (https://www.smithsonianmag.com/history/the-real-history-behind-christopher-nolans-oppenheimer-180982529/) . See Minesh Bacrania’s photographs of Los Alamos and read Smithsonian senior editor Jennie Rothenberg Gritz’s text here (https://www.smithsonianmag.com/history/exclusive-behind-scenes-look-los-alamos-lab-where-robert-oppenheimer-created-atomic-bomb-180982336/) or in the July/August 2023 issue of Smithsonian. Original release date: July 27, 2023 There’s More to That is a production of Smithsonian magazine and PRX Productions. From the magazine, our team is Chris Klimek, Debra Rosenberg and Brian Wolly. From PRX, our team is Jessica Miller, Genevieve Sponsler, Adriana Rozas Rivera, Terence Bernardo, and Edwin Ochoa. The Executive Producer of PRX Productions is Jocelyn Gonzales. Episode artwork by Emily Lankiewicz. Music by APM Music.

From tumultuous love affairs to violent betrayals, the six wives of Henry VIII all left marks on the Tudor dynasty – and shaped the course of history. READ MORE about these women here: https://www.smithsonianmag.com/history/the-true-history-behind-six-the-musical-about-henry-viiis-wives-180978781/ --- For more videos from Smithsonian Magazine: https://www.smithsonianmag.com/videos/ Digital Editorial Director: Brian Wolly Supervising Producer & Scriptwriter: Michelle Mehrtens Video Editor: Sierra Theobald