CG Dotti
Apr 1, 1988; 8:1454-1468
Articles

John D. Cahoy
Jan 2, 2008; 28:264-278
Cellular

Ye Zhang
Sep 3, 2014; 34:11929-11947
Cellular

Spanish translation of the BIS press release about the BIS Quarterly Review, March 2018

Spanish version of Press release about CPMI and the Markets Committee issuing a report on "Central bank digital currencies" (12 March 2018)

Cracked or broken mobile device screens can be costly to fix, but a few inexpensive DIY strategies can eliminate a repair shop visit and salvage your tablet or phone. It is relatively easy and cheap to replace the glass on a phone once you get the hang of it. Tablets are a bit more involved because of the larger size and added components. Tools might require an additional monetary outlay.

Exiting low inflation traps by "consensus": nominal wages and price stability - Speech by Luiz A Pereira da Silva and Benoît Mojon, based on the keynote speech at the Eighth High-level Policy Dialogue between the Eurosystem and Latin American Central Banks, Cartagena de Indias, Colombia, 28-29 November 2019.

Neurons and circuits each with a distinct balance of intrinsic and synaptic conductances can generate similar behavior but sometimes respond very differently to perturbation. Examining a large family of circuit models with non-identical neurons and synapses underlying rhythmic behavior, we analyzed the circuits' response to modifications in single and multiple intrinsic conductances in the individual neurons. To summarize these changes over the entire range of perturbed parameters, we quantified circuit output by defining a global stability measure. Using this measure, we identified specific subsets of conductances that when perturbed generate similar behavior in diverse individuals of the population. Our unbiased clustering analysis enabled us to quantify circuit stability when simultaneously perturbing multiple conductances as a nonlinear combination of single conductance perturbations. This revealed surprising conductance combinations that can predict the response to specific perturbations, even when the remaining intrinsic and synaptic conductances are unknown. Therefore, our approach can expose hidden variability in the balance of intrinsic and synaptic conductances of the same neurons across different versions of the same circuit solely from the circuit response to perturbations. Developed for a specific family of model circuits, our quantitative approach to characterizing high-dimensional degenerate systems provides a conceptual and analytic framework to guide future theoretical and experimental studies on degeneracy and robustness.

SIGNIFICANCE STATEMENT Neural circuits can generate nearly identical behavior despite neuronal and synaptic parameters varying several-fold between individual instantiations. Yet, when these parameters are perturbed through channel deletions and mutations or environmental disturbances, seemingly identical circuits can respond very differently. What distinguishes inconsequential perturbations that barely alter circuit behavior from disruptive perturbations that drastically disturb circuit output remains unclear. Focusing on a family of rhythmic circuits, we propose a computational approach to reveal hidden variability in the intrinsic and synaptic conductances in seemingly identical circuits based solely on circuit output to different perturbations. We uncover specific conductance combinations that work similarly to maintain stability and predict the effect of changing multiple conductances simultaneously, which often results from neuromodulation or injury.

Synaptic dysfunction provoking dysregulated cortical neural circuits is currently hypothesized as a key pathophysiological process underlying clinical manifestations in Alzheimer's disease and related neurodegenerative tauopathies. Here, we conducted PET along with postmortem assays to investigate time course changes of excitatory and inhibitory synaptic constituents in an rTg4510 mouse model of tauopathy, which develops tau pathologies leading to noticeable brain atrophy at 5-6 months of age. Both male and female mice were analyzed in this study. We observed that radiosignals derived from [¹¹C]flumazenil, a tracer for benzodiazepine receptor, in rTg4510 mice were significantly lower than the levels in nontransgenic littermates at 2-3 months of age. In contrast, retentions of (E)-[¹¹C]ABP688, a tracer for mGluR5, were unaltered relative to controls at 2 months of age but then gradually declined with aging in parallel with progressive brain atrophy. Biochemical and immunohistochemical assessment of postmortem brain tissues demonstrated that inhibitory, but not excitatory, synaptic constituents selectively diminished without overt loss of somas of GABAergic interneurons in the neocortex and hippocampus of rTg4510 mice at 2 months of age, which was concurrent with enhanced immunoreactivity of cFos, a well-characterized immediate early gene, suggesting that impaired inhibitory neurotransmission may cause hyperexcitability of cortical circuits. Our findings indicate that tau-induced disruption of the inhibitory synapse may be a critical trigger of progressive neurodegeneration, resulting in massive neuronal loss, and PET assessments of inhibitory versus excitatory synapses potentially offer in vivo indices for hyperexcitability and excitotoxicity early in the etiologic pathway of neurodegenerative tauopathies.

SIGNIFICANCE STATEMENT In this study, we examined the in vivo status of excitatory and inhibitory synapses in the brain of the rTg4510 tauopathy mouse model by PET imaging with (E)-[¹¹C]ABP688 and [¹¹C]flumazenil, respectively. We identified inhibitory synapse as being significantly dysregulated before brain atrophy at 2 months of age, while excitatory synapse stayed relatively intact at this stage. In line with this observation, postmortem assessment of brain tissues demonstrated selective attenuation of inhibitory synaptic constituents accompanied by the upregulation of cFos before the formation of tau pathology in the forebrain at young ages. Our findings indicate that selective degeneration of inhibitory synapse with hyperexcitability in the cortical circuit constitutes the critical early pathophysiology of tauopathy.

Enjoy a low-cost, healthy diet from your very own vegetable garden and get the chance to make money by selling your own products. Start your own vegetable garden to grow, prepare and eat your own delicious fruits and vegetables with these tips: Do your research: When you begin your own vegetable garden you should understand the type of soil you work [...]

Four years into the 2030 Agenda, there is still a large gap in data to understand where the world stands in achieving its shared goals, the SDGs. To support [...]

The findings further refute the outdated notion that humans' capacity for complex artistic expression evolved exclusively in Europe

Root vegetables like rutabagas and Jerusalem artichokes were ration staples during the Nazi occupation of Paris

It all began when three frustrated women sought the no-bounce zone

Press release about Basel Committee assesses members' implementation of the Net Stable Funding Ratio and large exposures framework, 19 March 2020

A protein shredder that occurs in cell membranes of brain cells apparently also indirectly regulates the fat metabolism.

If he fouls this up, we’re doomed.

Matteo Tranchellini and Moreno Monti created a coffee table book called CHICken to showcase the natural beauty of the ubiquitous birds.

A woman found not criminally responsible for fatally stabbing a stranger in the heart at the makeup counter of a Toronto drugstore five years ago could ultimately be allowed to live in the community if the mental health facility where she is staying decides she can, the Ontario Review Board says.

A man in Kamloops, B.C., has died and two others are in hospital with life-threatening injuries after a stabbing at a party at an apartment complex Saturday night. 

The post Teaching and Learning SOLIDWORKS from the Kitchen Table appeared first on SOLIDWORKS Education Blog.

Are financial intermediaries inherently unstable and, if so, why? To address this, we analyse whether model economies with financial intermediation are particularly prone to multiple, cyclic or stochastic equilibria.

Being able to have an overview of changes to designs since initial release is an important aspect to time-efficient engineering. Making use of an automatically updated revision table helps with that.  What version are we using? Who has made these

Author information

The post How to set up an automatically updated revision table appeared first on SOLIDWORKS Tech Blog.

Rex from the USA, volunteered for two months in the Baseball and Softball Programme alongside OMers Terry Lingenhoel and Suzanne Cole this spring.

Relationships formed between women in the impoverished neighbourhood of Las Tablas and the women of OM Costa Rica are leading to changed lives.

The OM Costa Rica team is starting a holistic ministry for women in the underprivileged community of Las Tablas in the country's capital San José.

The Lord opens doors for women in Las Tablas, a slum near San José, to learn how to sew and make mosaics.

Inexpensive tablets can make great ebook readers, video players, or web browsers, and some of our top picks are well below the $100 mark. Here's how to find the right balance of price and features.

5G tablets are on the way, and Samsung's Galaxy Tab S6 could be repackaged as one of the first. The South Korean company accidentally listed the 5G-ready model on its website. Now, it's only a matter of time before the Galaxy Tab S6 5G goes official.

For a limited time, the 7-inch Fire 7 Kids Edition is $40 off while the 8- and 10-inch models are both $50 off. These tablets make a great gift for 3-to-12-year olds.

Dell's Latitude 7220 Rugged Extreme Tablet lives up to its name by laughing at drops, splashes, and temperatures that would blow the average slate to smithereens. It's ideal for first responders and factory floors.

Can't get your hands on your own iPad? Kids love tablets, but which is the right one for them? Check out our top picks to keep your kids educated and entertained.

Tablets are great for playing games, reading, homework, keeping kids entertained in the back seat of the car, and a whole lot more. Whether you're looking for an Android or Apple slate, here's what to consider, along with reviews of the best tablets we've tested.

Nicola Sturgeon won plaudits from some unlikely quarters this week for her “grown-up conversation” on lifting the lockdown.

The director of teaching and learning for a Minnesota district talks about putting e-learning days into action under difficult circumstances.

Filled with jargon, "meaningless" tables and missing data, state report cards can be difficult for parents to use, an analysis by the Data Quality Campaign says.

There are times when I wish my family’s life revolved a little less around Andy Murray. Two words, "Andy’s playing", are sufficient reason for outings to be delayed or abandoned; invitations turned down; even holiday dates tweaked.

Education needs to stop going around in circles, writes Stanford’s Thomas S. Dee.

U.S. Secretary of Education Arne Duncan may only have eighteen months left in office—but they're critical months when it comes to the reauthorization of the Elementary and Secondary Education Act.

Part two of Marc Tucker's suggestions to state leaders as ESEA reauthorization swings responsibility for standards and accountability systems back to the states.

Associations between short sleep duration, obesity, and metabolic dysfunction have been proposed for children but have not been explored appropriately.

The main findings included a nonlinear trend between sleep duration and body weight and the finding that children's sleep averaged 8 hours per night regardless of body weight. Lower sleep duration values were strongly associated with increased metabolic risk. (Read the full article)

Very preterm children are at risk for developmental problems and, therefore, a systematic follow-up is important. However, the relevance of early follow-up of cognitive development has been questioned because of the divergent data on the prognostic value of early measures.

Good stability of cognitive development was found between the ages of 2 and 5 years. Well-conducted assessment of cognitive development in infancy is both reliable to anticipate later development and clinically valuable to identify those children who need developmental support. (Read the full article)

Changes in BMI category appear to be common in young children and are associated with cardiometabolic risk in cross-sectional studies. However, there are few longitudinal studies and little information from multiethnic samples of US middle school children.

Findings demonstrate that shifts in BMI category are common in middle-school-aged children and associated with clinically meaningful changes in cardiometabolic risk factors. Programs to promote decreases in BMI, prevent increases, and moderate risk are indicated. (Read the full article)

Diabetes during pregnancy has been associated with general development impairments in offspring; however, associations between autism and maternal diabetes have been inconsistent. Few studies have examined related conditions accompanied by underlying increased insulin resistance and their association with developmental outcomes.

This population-based study in young children provides evidence that maternal metabolic conditions are a risk factor for autism, developmental delay without autistic symptoms, and impairments in several domains of development, particularly expressive language, after adjusting for sociodemographic and other characteristics. (Read the full article)

In utero exposure to glucocorticoids in animal models influences vascular development. Studies in young adults have shown that exposure to antenatal glucocorticoids alters glucose metabolism, but it is not known whether there are any cardiovascular effects.

Glucocorticoid exposure is associated with a localized increase in aortic arch stiffness, similar in magnitude to term-born individuals a decade older. The change in stiffness does not relate to changes in glucose metabolism that were also evident in this cohort. (Read the full article)

Birth defects are associated with preterm birth and are a major contributor to infant mortality. There are persistent black-white differences in overall infant mortality and infant mortality attributable to birth defects.

Among infants delivered at 37 to 44 weeks, blacks and Hispanics had significantly higher neonatal and postneonatal mortality attributable to birth defects than whites. Among infants delivered at 20 to 33 or 34 to 36 weeks, neonatal mortality attributable to birth defects was significantly lower among blacks. (Read the full article)

Despite the dramatic rise in prevalence of metabolic syndrome (MetS) among children and adolescents, and that MetS is associated with cognitive and brain impairments among adults, no data on the impact of MetS on the brain exist in children.

It provides the first data on the impact of MetS on brain in adolescence. We show reductions in cognitive function and brain structural integrity in nondiabetic adolescents with MetS, thus suggesting that even pre-clinical metabolic illness may give rise to brain complications. (Read the full article)

Childhood obesity is a public health concern. Although determinants of childhood overweight have been identified and their effect sizes have been calculated, prevention as well as treatment have had limited success.

We have calculated the population-based relevance of determinants of childhood overweight by using attributable risks, which can be interpreted as maximum success rates of preventive measures. New concepts were applied to estimate the relative contribution of each risk factor. (Read the full article)

A previous study of inflatable bouncer–related fractures has shown that upper extremity fractures are most common, and many fractures are caused by collisions; however, no study has examined nonfracture injuries or used nationally representative data to investigate inflatable bouncer–related injuries.

This is the first study to use nationally representative data to calculate national injury rates, assess risk factors, and examine trends for pediatric inflatable bouncer–related injuries treated in US emergency departments over a 21-year period (1990–2010). (Read the full article)

In the United States, adolescent obesity rates have tripled in the last 3 decades, with concomitant increases in other metabolic risk factors, including the metabolic syndrome (MetSyn). However, in Asian countries, these same risks have only recently begun increasing.

Representative data for the United States and Korea reveal trends in adolescent obesity and MetSyn moving in opposite directions. This study provides a benchmark for Korea and other Asian countries toward mitigating the upward trends in obesity and MetSyn. (Read the full article)