Earl K. Miller
Aug 15, 1996; 16:5154-5167
Articles

Carrie J. McAdams
Jan 1, 1999; 19:431-441
Articles

Matteo Carandini
Nov 1, 1997; 17:8621-8644
Articles

Spanish translation of press release - the Basel Committee on Banking Supervision is finalising stress-testing principles, reviews ways to stop regulatory arbitrage behaviour, agrees on annual G-SIB list, discusses leverage ratio, crypto-assets, market risk framework and implementation, 20 September 2018.

We can adapt flexibly to environment changes and search for the most appropriate rule to a context. The orbital prefrontal cortex (PFo) has been associated with decision making, rule generation and maintenance, and more generally has been considered important for behavioral flexibility. To better understand the neural mechanisms underlying the flexible behavior, we studied the ability to generate a switching signal in monkey PFo when a strategy is changed. In the strategy task, we used a visual cue to instruct two male rhesus monkeys either to repeat their most recent choice (i.e., stay strategy) or to change it (i.e., shift strategy). To identify the strategy switching-related signal, we compared nonswitch and switch trials, which cued the same or a different strategy from the previous trial, respectively. We found that the switching-related signal emerged during the cue presentation and it was combined with the strategy signal in a subpopulation of cells. Moreover, the error analysis showed that the activity of the switch-related cells reflected whether the monkeys erroneously switched or not the strategy, rather than what was required for that trial. The function of the switching signal could be to prompt the use of different strategies when older strategies are no longer appropriate, conferring the ability to adapt flexibly to environmental changes. In our task, the switching signal might contribute to the implementation of the strategy cued, overcoming potential interference effects from the strategy previously cued. Our results support the idea that ascribes to PFo an important role for behavioral flexibility.

SIGNIFICANCE STATEMENT We can flexibly adapt our behavior to a changing environment. One of the prefrontal areas traditionally associated with the ability to adapt to new contingencies is the orbital prefrontal cortex (PFo). We analyzed the switching related activity using a strategy task in which two rhesus monkeys were instructed by a visual cue either to repeat or change their most recent choice, respectively using a stay or a shift strategy. We found that PFo neurons were modulated by the strategy switching signal, pointing to the importance of PFo in behavioral flexibility by generating control over the switching of strategies.

The Beatles guitarist visited his sister in southern Illinois just months before he'd become world famous

CONCACAF president Victor Montagliani says the global pandemic will result in a change in World Cup qualifying for the region that covers North and Central America and the Caribbean.

Penn State Mont Alto recognizes and honors winners during awards ceremony

We look at a coaching system which has produced a long line of talent.

We investigate what makes the Dutch club's youth system so special.

A new youth academy in Ta' Qali for the island's outstanding talents has sharpened the focus of the Malta Football Association as it envisions a bright future for the game.

In this country, where the dank, grim days of winter are as short as a resigned sigh, the onset of some decent, dry spring weather doesn’t half raise the morale. Well, it would if the coronavirus wasn’t lurking all over the parish.

Fed up with their district’s unmet pledges to stop steering African American students into low-level classes, parents take action.

Although many children are treated in general emergency departments, many such facilities have limited pediatric capabilities. Transfer to academic centers improves outcomes for critically ill patients, but transfers of noncritically ill children have not been well studied.

Although more than half of these patients are seriously ill, many transferred patients are discharged directly from the emergency department or are admitted for less than 24 hours. Orthopedic problems, gastrointestinal conditions, and traumatic head injury are the most common complaints. (Read the full article)

Late preterm infants are at risk for a variety of developmental impairments; however, little is known about developmental differences among children born within the term range of 37 to 41 weeks’ gestation.

This study links comprehensive birth record data from 128 050 term births to children’s school records 8 years later. Analyses establish that, even among the "normal term" range, gestational age is an important independent predictor of academic achievement. (Read the full article)

The impact of relative age at school entry on academic progress and the risk of being diagnosed with ADHD remains controversial. Stimulants are widely used as a therapeutic option for ADHD in the United States and increasingly in Europe.

Relative age among classmates affects academic performance among boys and girls into puberty, as well as children’s risk of being prescribed stimulants for ADHD. This should be taken into account when evaluating children’s performance and behavior in school to prevent unnecessary stimulant prescribing. (Read the full article)

In the only previous cross-sectional study, the quality of pediatric guidelines was rated low on the AGREE-II (Appraisal of Guidelines for Research and Evaluation II) scale. The levels of evidence used in pediatric clinical practice guidelines have never been described.

American Academy of Pediatrics guidelines score low on the AGREE-II scale. Approximately one-quarter of recommendations are based on expert opinion or no reference. These findings support the adoption of standards for guideline development and research targeted toward unsupported recommendations. (Read the full article)

Extreme prematurity is a well-established cause of cognitive and motor impairment. There is some evidence that late prematurity and modifiable maternal attributes may negatively influence scholastic achievement, including standardized test performance.

We found that preterm birth significantly increases risk of first-grade failure rate even when the birth is just a few weeks before term gestation. Low maternal education status compounds the effect of prematurity. (Read the full article)

At least half of the achievement gap for low-income, minority children is present at kindergarten entry; however, there are no population-level early childhood interventions that effectively engage and support families and teachers to ameliorate the impact of adversity on achievement.

This study evaluated ParentCorps, a family-centered, school-based intervention to promote self-regulation and learning for all children entering school in disadvantaged, urban neighborhoods. ParentCorps results in higher kindergarten achievement among low-income, minority children. (Read the full article)

Previous studies that reported learning deficits among children with oral clefts mostly used small, clinic-based samples prone to ascertainment bias. No previous studies in the United States have used a population-based sample and direct testing of academic achievement.

Using a large population-based sample from the United States and standardized school tests for achievement, we found that children with oral clefts scored significantly lower than their classmates on all evaluated domains of achievement and had higher rates of learning disability. (Read the full article)

There is extensive literature documenting that children experiencing foster care placement have myriad adverse developmental outcomes, including poor academic achievement. However, such children face a host of other risk factors that may jeopardize healthy development independent of foster care placement.

Using statewide administrative data from Wisconsin, we observed children before, during, and after foster care placement and compared their educational outcomes with those of the general population, as well as with children more similar in terms of unobserved characteristics. (Read the full article)

It is unclear whether developmental delays observed among infants with single-suture craniosynostosis (SSC) persist at school age. Few neurodevelopmental studies have examined children with SSC beyond age 3, with most having methodological limitations.

This study is the first to follow and test infants with SSC and a control group at school age. Infancy delays among children with SSC persisted at school age in some areas (IQ, math) but not others (reading, spelling). (Read the full article)

Concussion produces a range of symptoms that may impede academic functioning. The need for empirical validation exists, despite growing consensus on the importance of a guided return-to-school process for students recovering from concussion.

This study provides initial evidence of a concussion’s adverse effects on academic learning and performance across all grades, including heightened levels of school-related concern and amplified postinjury academic difficulties experienced by symptomatic students relative to their recovered peers. (Read the full article)

Academic gender gaps in reading and math follow different paths as American students move from their school years into adulthood, according to new federal data.

Valor Collegiate Academies has been in the top 5 percent of Tennessee schools on growth and achievement every year since it started in 2014. But Tom visited Valor because of the well-regarded Valor Compass, a holistic human-development program.

The justices hear arguments Nov. 12 on the Trump administration's effort to end deportation relief under Deferred Action for Childhood Arrivals, in a case pitting the administration and GOP-leaning states against a host of education and advocacy groups.

Probiotics might provide an alternative approach for the control of oral candidiasis. However, studies on the antifungal activity of probiotics in the oral cavity are based on the consumption of yogurt or other dietary products, and there is a necessary to use appropriate biomaterials and specific strains to obtain probiotic formulations targeting local oral administration. In this study, we impregnated gellan gum, a natural biopolymer used as a food-additive, with a probiotic and investigated its antifungal activity against Candida albicans. Lactobacillus paracasei 28.4, a strain recently isolated from the oral cavity of a caries-free individual, was incorporated in several concentrations of gellan gum (0.6% to 1%). All tested concentrations could incorporate L. paracasei cells while maintaining bacterial viability. Probiotic/gellan formulations were stable for 7 days when stored at room temperature or 4°C. Long-term storage of bacteria-impregnated gellan gum was achieved when L. paracasei 28.4 was lyophilized. The probiotic/gellan formulations provided a release of L. paracasei cells over 24 hours that was sufficient to inhibit the growth of C. albicans with effects dependent on the cell concentrations incorporated into gellan gum. The probiotic/gellan formulations also had inhibitory activity against Candida spp. biofilms by reducing the number of Candida spp. cells (p < 0.0001), decreasing the total biomass (p = 0.0003), and impairing hyphae formation (p = 0.0002), compared to the control group which received no treatment. Interestingly, probiotic formulation of 1% w/v gellan gum provided an oral colonization of L. paracasei in mice with approximately 6 log of CFU/mL after 10 days. This formulation inhibited the C. albicans growth (p < 0.0001), prevented the development of candidiasis lesions (p = 0.0013), and suppressed inflammation (p = 0.0006) when compared to the mice not treated in the microscopic analysis of the tongue dorsum. These results indicate that gellan gum is a promising biomaterial and can be used as a carrier system to promote oral colonization for probiotics that prevent oral candidiasis.

Ceftazidime–avibactam and cefiderocol are two of the latest generation β-lactam agents that possess expanded activity against highly drug-resistant bacteria, including carbapenem-resistant Enterobacterales. Here we show that structural changes in AmpC β-lactamases can confer reduced susceptibility to both agents. A multidrug-resistant Enterobacter cloacae clinical strain (Ent385) was found to be resistant to ceftazidime–avibactam and cefiderocol without prior exposure to either agent. The AmpC β-lactamase of Ent385 (AmpC^Ent385) contained an alanine–proline deletion at positions 294–295 (A294_P295del) in the R2 loop. AmpC^Ent385 conferred reduced susceptibility to ceftazidime–avibactam and cefiderocol when cloned into Escherichia coli TOP10. Purified AmpC^Ent385 showed increased hydrolysis of ceftazidime and cefiderocol compared with AmpC^Ent385Rev, in which the deletion was reverted. Comparisons of crystal structures of AmpC^Ent385 and AmpC^P99, the canonical AmpC of E. cloacae, revealed that the two-residue deletion in AmpC^Ent385 induced drastic structural changes of the H-9 and H-10 helices and the R2 loop, which accounted for the increased hydrolysis of ceftazidime and cefiderocol. The potential for a single mutation in ampC to confer reduced susceptibility to both ceftazidime–avibactam and cefiderocol requires close monitoring.

Importance Ceftazidime–avibactam and cefiderocol are newly approved β-lactam agents that possess broad spectrum activity against multidrug-resistant (MDR) Gram-negative bacteria. We show here that a two amino-acid deletion in the chromosomal AmpC β-lactamase, identified in a clinical strain of Enterobacter cloacae, confers reduced susceptibility to both agents. By crystallographic studies of free and drug-bound forms of enzyme, we demonstrate that this deletion in AmpC induces slanting of the H-9 helix that is directly connected with the R2 loop, and disappearance of the H-10 helix, is directly responsible for increased hydrolysis of ceftazidime and cefiderocol. These findings provide novel insights into how MDR Gram-negative bacteria may evolve their β-lactamases to survive selective pressure from these newly developed β-lactam agents.

Background: MRSA pose significant therapeutic challenges, related to their: frequency in clinical infections; innate virulence properties; and propensity for multi-antibiotic resistance. MRSA are among the most common causes of endovascular infections, including infective endocarditis (IE).

Objective: To employ transthoracic echocardiography (TTE) to evaluate the effect of exebacase, a novel direct lytic agent, in experimental aortic valve MRSA IE.

Study Design: TTE was utilized to evaluate the in vivo effect of exebacase on MRSA-infected vegetation progression when combined with daptomycin (vs daptomycin alone). Primary intravegetation outcomes were: maximum size; weights at sacrifice; and MRSA counts at infection baseline vs after 4 days of daptomycin treatment (alone or in addition to exebacase administered once on treatment Day 1).

Results: A single dose of exebacase in addition to daptomycin cleared significantly more intravegetation MRSA than daptomycin alone. This was associated with a statistical trend toward reduced maximum vegetation size in the exebacase + daptomycin vs the daptomycin-alone therapy groups (p = 0.07). Also, mean vegetation weights in the exebacase-treated group were significantly lower vs daptomycin-alone (p < 0.0001). Maximum vegetation size by TTE correlated with vegetation weight (p = 0.005). In addition, intravegetation MRSA counts in the combination group were significantly lower vs untreated controls (p<0.0001) and the daptomycin-alone group (p<0.0001).

Conclusion: This study suggests that exebacase has a salutary impact on MRSA-infected vegetation progression when combined with daptomycin, especially in terms of vegetation MRSA burden, size and weight. Moreover, TTE appears to be an efficient non-invasive tool to assess therapeutic efficacies in experimental MRSA IE.

An unusual program in Cincinnati provides academic coaches to help high school players meet eligibility requirements to stay in the game.

The Student Engagement Network's Faculty Academy funds projects developed by Penn State faculty that result in transformative experiences that complement student engagement.

Forty-nine Penn State Berks students received recognition for the University Scholastic awards on April 2, through personalized emails. The awards presented included the Evan Pugh Scholars Award,

CNA Staff, Apr 2, 2020 / 02:50 pm (CNA).- The statue of the Nazarene of Saint Paul will be processed April 8 through the streets of Caracas to help the faithful observe Holy Week.

It will be atop a popemobile used by St. John Paul II when he visited the country in 1985.

According to local tradition, the striking image was brought to Caracas from Seville in 1674. The wooden sculpture depicts Christ dressed in an ornately embroidered purple robe carrying his cross.

According to accounts, the image was processed in the city with prayers during a plague that broke out in Caracas in 1696, and the devotional act was credited with ending the pestilence.

The image was originally kept in a church dedicated to Saint Paul the Hermit, whose intercession was attributed to ending a plague in 1579. The wooden sculpture is now reserved in Saint Teresa Basilica, as Saint Paul’s church was demolished and replaced with a municipal theater by an anticlerical president in 1881.

The procession is held annually on Holy Wednesday.

Cardinal Baltazar Enrique Porras Cardozo, Archbishop of Merida and apostolic administrator of Caracas, said the “route will cover a great part of the city for veneration by its devotees,” and asked for understanding as the route itself has not yet been finalized and will be announced later.

According to local media, the prelate said in a letter that the image should be transported in accordance with safety and hygiene regulations to avoid spreading the coronavirus.

Porras said that the image should not be carried by people but transported by vehicle only and there should be another vehicle for a priest and assistant along with sound equipment for the prayers.

The archdiocese said that parishes can join the initiative and organize such a procession in their own areas as long as they observe the proper health precautions.

Finally, the archdiocese asked the faithful devotees of the Nazarene of Saint Paul to offer their prayers from their homes and to wait for the end of the coronavirus lockdown to visit the image in Saint Teresa Basilica.

Penn State Brandywine has recognized students who have earned academic honors. Their accomplishments were celebrated through a virtual academic recognition website, which included a video message of congratulations from Chancellor Marilyn J. Wells. Due to the coronavirus pandemic, the annual ceremony that is usually held on campus was held in a virtual format.

Michael Mann, distinguished professor of atmospheric sciences and director of Penn State's Earth System Science Center at Penn State, has been elected to the National Academy of Sciences, recognizing distinguished and continuing achievements in original research. Membership in the NAS is one of the highest honors given to a scientist or engineer in the United States.

Penn State New Kensington student-athletes from seven varsity sports teams were recognized virtually for academic and athletic performance during the 2019-20 academic year.

Penn State Wilkes-Barre held its 31st annual Celebration of Academic Excellence event on April 30. Due to the COVID-19 pandemic, this year’s ceremony was held in a virtual format.

Super-rich visitors to Cape Town over the holiday season have once again been willing to dig deep into their pockets for luxury rental accommodation.

A research-practice partnership examines how urban after-school programs can support positive youth development.

The Delaware State Housing Authority (DSHA) honored students in the DSHA housing community for achieving academic excellence by making the honor roll and having perfect attendance, with a luncheon and awards ceremony at Polytech High School in Woodside, Delaware.