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Ketamine : from abused drug to rapid-acting antidepressant

9789811529023




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Insect metamorphosis : from natural history to regulation of development and evolution

Bellés, X., author
9780128130216




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Genomic designing of climate-smart vegetable crops

9783319974156 (electronic bk.)




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Genetic and metabolic engineering for improved biofuel production from lignocellulosic biomass

9780128179543 (electronic bk.)




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Fresh-cut fruits and vegetables : technologies and mechanisms for safety control

9780128165393 (electronic bk.)




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ECG Interpretation

Kusumoto, Fred. author. aut http://id.loc.gov/vocabulary/relators/aut
9783030403416 978-3-030-40341-6




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Dietary sugar, salt and fat in human health

9780128169193 (electronic bk.)




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Berquist's musculoskeletal imaging companion

Peterson, Jeffrey J., author.
9781496314994





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metadata

Data about data. In common usage as a generic term, metadata stores data about the structure, context and meaning of raw data, and computers use it to help organize and interpret data, turning it into meaningful information. The WorldWide Web has driven usage of metadata to new levels, as the tags used in HTML and XML are a form of metadata, although the meaning they convey is often limited because the metadata means different things to different people.




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Modeling microbial abundances and dysbiosis with beta-binomial regression

Bryan D. Martin, Daniela Witten, Amy D. Willis.

Source: The Annals of Applied Statistics, Volume 14, Number 1, 94--115.

Abstract:
Using a sample from a population to estimate the proportion of the population with a certain category label is a broadly important problem. In the context of microbiome studies, this problem arises when researchers wish to use a sample from a population of microbes to estimate the population proportion of a particular taxon, known as the taxon’s relative abundance . In this paper, we propose a beta-binomial model for this task. Like existing models, our model allows for a taxon’s relative abundance to be associated with covariates of interest. However, unlike existing models, our proposal also allows for the overdispersion in the taxon’s counts to be associated with covariates of interest. We exploit this model in order to propose tests not only for differential relative abundance, but also for differential variability. The latter is particularly valuable in light of speculation that dysbiosis , the perturbation from a normal microbiome that can occur in certain disease conditions, may manifest as a loss of stability, or increase in variability, of the counts associated with each taxon. We demonstrate the performance of our proposed model using a simulation study and an application to soil microbial data.




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A new McKean–Vlasov stochastic interpretation of the parabolic–parabolic Keller–Segel model: The one-dimensional case

Denis Talay, Milica Tomašević.

Source: Bernoulli, Volume 26, Number 2, 1323--1353.

Abstract:
In this paper, we analyze a stochastic interpretation of the one-dimensional parabolic–parabolic Keller–Segel system without cut-off. It involves an original type of McKean–Vlasov interaction kernel. At the particle level, each particle interacts with all the past of each other particle by means of a time integrated functional involving a singular kernel. At the mean-field level studied here, the McKean–Vlasov limit process interacts with all the past time marginals of its probability distribution in a similarly singular way. We prove that the parabolic–parabolic Keller–Segel system in the whole Euclidean space and the corresponding McKean–Vlasov stochastic differential equation are well-posed for any values of the parameters of the model.




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The Thomson family : fisherman in Buckhaven, retailers in Kapunda / compiled by Elizabeth Anne Howell.

Thomson (Family)




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Federal watchdog finds 'reasonable grounds to believe' vaccine doctor's ouster was retaliation, lawyers say

The Office of Special Counsel is recommending that ousted vaccine official Dr. Rick Bright be reinstated while it investigates his case, his lawyers announced Friday.Bright while leading coronavirus vaccine development was recently removed from his position as the director of the Department of Health and Human Services' Biomedical Advanced Research and Development Authority, and he alleges it was because he insisted congressional funding not go toward "drugs, vaccines, and other technologies that lack scientific merit" and limited the "broad use" of hydroxychloroquine after it was touted by President Trump. In a whistleblower complaint, he alleged "cronyism" at HHS. He has also alleged he was "pressured to ignore or dismiss expert scientific recommendations and instead to award lucrative contracts based on political connections."On Friday, Bright's lawyers said that the Office of Special Counsel has determined there are "reasonable grounds to believe" his firing was retaliation, The New York Times reports. The federal watchdog also recommended he be reinstated for 45 days to give the office "sufficient time to complete its investigation of Bright's allegations," CNN reports. The decision on whether to do so falls on Secretary of Health and Human Services Alex Azar, and Office of Special Counsel recommendations are "not binding," the Times notes. More stories from theweek.com Outed CIA agent Valerie Plame is running for Congress, and her launch video looks like a spy movie trailer 7 scathing cartoons about America's rush to reopen Trump says he couldn't have exposed WWII vets to COVID-19 because the wind was blowing the wrong way





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Pence press secretary tests positive for coronavirus

The news comes shortly after a valet who served meals to President Trump also tested positive for the virus.





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Metacognitive Mechanisms Underlying Lucid Dreaming

Elisa Filevich
Jan 21, 2015; 35:1082-1088
BehavioralSystemsCognitive




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Neurodegeneration induced by beta-amyloid peptides in vitro: the role of peptide assembly state

CJ Pike
Apr 1, 1993; 13:1676-1687
Articles




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High-Level Neuronal Expression of A{beta}1-42 in Wild-Type Human Amyloid Protein Precursor Transgenic Mice: Synaptotoxicity without Plaque Formation

Lennart Mucke
Jun 1, 2000; 20:4050-4058
Cellular




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Response of Neurons in the Lateral Intraparietal Area during a Combined Visual Discrimination Reaction Time Task

Jamie D. Roitman
Nov 1, 2002; 22:9475-9489
Behavioral




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Las monedas digitales de bancos centrales podrían afectar a los pagos, la política monetaria y la estabilidad financiera

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




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Monetary policy: 10 years after the financial crisis

Speech by Mr Agustín Carstens, General Manager of the BIS, to the Basler Bankenforum, Basel, 5 September 2019.




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Vulnerabilities in the international monetary and financial system

Speech by Mr Claudio Borio, Head of the Monetary and Economic Department of the BIS, at the OECD-G20 High Level Policy Seminar, Paris, 11 September 2019.




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The Right Temporoparietal Junction Is Causally Associated with Embodied Perspective-taking

A prominent theory claims that the right temporoparietal junction (rTPJ) is especially associated with embodied processes relevant to perspective-taking. In the present study, we use high-definition transcranial direct current stimulation to provide evidence that the rTPJ is causally associated with the embodied processes underpinning perspective-taking. Eighty-eight young human adults were stratified to receive either rTPJ or dorsomedial PFC anodal high-definition transcranial direct current stimulation in a sham-controlled, double-blind, repeated-measures design. Perspective-tracking (line-of-sight) and perspective-taking (embodied rotation) were assessed using a visuo-spatial perspective-taking task that required understanding what another person could see or how they see it, respectively. Embodied processing was manipulated by positioning the participant in a manner congruent or incongruent with the orientation of an avatar on the screen. As perspective-taking, but not perspective-tracking, is influenced by bodily position, this allows the investigation of the specific causal role for the rTPJ in embodied processing. Crucially, anodal stimulation to the rTPJ increased the effect of bodily position during perspective-taking, whereas no such effects were identified during perspective-tracking, thereby providing evidence for a causal role for the rTPJ in the embodied component of perspective-taking. Stimulation to the dorsomedial PFC had no effect on perspective-tracking or taking. Therefore, the present study provides support for theories postulating that the rTPJ is causally involved in embodied cognitive processing relevant to social functioning.

SIGNIFICANCE STATEMENT The ability to understand another's perspective is a fundamental component of social functioning. Adopting another perspective is thought to involve both embodied and nonembodied processes. The present study used high-definition transcranial direct current stimulation (HD-tDCS) and provided causal evidence that the right temporoparietal junction is involved specifically in the embodied component of perspective-taking. Specifically, HD-tDCS to the right temporoparietal junction, but not another hub of the social brain (dorsomedial PFC), increased the effect of body position during perspective-taking, but not tracking. This is the first causal evidence that HD-tDCS can modulate social embodied processing in a site-specific and task-specific manner.




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{beta}4-Nicotinic Receptors Are Critically Involved in Reward-Related Behaviors and Self-Regulation of Nicotine Reinforcement

Nicotine addiction, through smoking, is the principal cause of preventable mortality worldwide. Human genome-wide association studies have linked polymorphisms in the CHRNA5-CHRNA3-CHRNB4 gene cluster, coding for the α5, α3, and β4 nicotinic acetylcholine receptor (nAChR) subunits, to nicotine addiction. β4*nAChRs have been implicated in nicotine withdrawal, aversion, and reinforcement. Here we show that β4*nAChRs also are involved in non-nicotine-mediated responses that may predispose to addiction-related behaviors. β4 knock-out (KO) male mice show increased novelty-induced locomotor activity, lower baseline anxiety, and motivational deficits in operant conditioning for palatable food rewards and in reward-based Go/No-go tasks. To further explore reward deficits we used intracranial self-administration (ICSA) by directly injecting nicotine into the ventral tegmental area (VTA) in mice. We found that, at low nicotine doses, β4KO self-administer less than wild-type (WT) mice. Conversely, at high nicotine doses, this was reversed and β4KO self-administered more than WT mice, whereas β4-overexpressing mice avoided nicotine injections. Viral expression of β4 subunits in medial habenula (MHb), interpeduncular nucleus (IPN), and VTA of β4KO mice revealed dose- and region-dependent differences: β4*nAChRs in the VTA potentiated nicotine-mediated rewarding effects at all doses, whereas β4*nAChRs in the MHb-IPN pathway, limited VTA-ICSA at high nicotine doses. Together, our findings indicate that the lack of functional β4*nAChRs result in deficits in reward sensitivity including increased ICSA at high doses of nicotine that is restored by re-expression of β4*nAChRs in the MHb-IPN. These data indicate that β4 is a critical modulator of reward-related behaviors.

SIGNIFICANCE STATEMENT Human genetic studies have provided strong evidence for a relationship between variants in the CHRNA5-CHRNA3-CHRNB4 gene cluster and nicotine addiction. Yet, little is known about the role of β4 nicotinic acetylcholine receptor (nAChR) subunit encoded by this cluster. We investigated the implication of β4*nAChRs in anxiety-, food reward- and nicotine reward-related behaviors. Deletion of the β4 subunit gene resulted in an addiction-related phenotype characterized by low anxiety, high novelty-induced response, lack of sensitivity to palatable food rewards and increased intracranial nicotine self-administration at high doses. Lentiviral vector-induced re-expression of the β4 subunit into either the MHb or IPN restored a "stop" signal on nicotine self-administration. These results suggest that β4*nAChRs provide a promising novel drug target for smoking cessation.




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The Firing of Theta State-Related Septal Cholinergic Neurons Disrupt Hippocampal Ripple Oscillations via Muscarinic Receptors

The septo-hippocampal cholinergic system is critical for hippocampal learning and memory. However, a quantitative description of the in vivo firing patterns and physiological function of medial septal (MS) cholinergic neurons is still missing. In this study, we combined optogenetics with multichannel in vivo recording and recorded MS cholinergic neuron firings in freely behaving male mice for 5.5–72 h. We found that their firing activities were highly correlated with hippocampal theta states. MS cholinergic neurons were highly active during theta-dominant epochs, such as active exploration and rapid eye movement sleep, but almost silent during non-theta epochs, such as slow-wave sleep (SWS). Interestingly, optogenetic activation of these MS cholinergic neurons during SWS suppressed CA1 ripple oscillations. This suppression could be rescued by muscarinic M2 or M4 receptor antagonists. These results suggest the following important physiological function of MS cholinergic neurons: maintaining high hippocampal acetylcholine level by persistent firing during theta epochs, consequently suppressing ripples and allowing theta oscillations to dominate.

SIGNIFICANCE STATEMENT The major source of acetylcholine in the hippocampus comes from the medial septum. Early experiments found that lesions to the MS result in the disappearance of hippocampal theta oscillation, which leads to speculation that the septo-hippocampal cholinergic projection contributing to theta oscillation. In this article, by long-term recording of MS cholinergic neurons, we found that they show a theta state-related firing pattern. However, optogenetically activating these neurons shows little effect on theta rhythm in the hippocampus. Instead, we found that activating MS cholinergic neurons during slow-wave sleep could suppress hippocampal ripple oscillations. This suppression is mediated by muscarinic M2 and M4 receptors.




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Vegetable garden tips – for better homes and gardens

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 [...]




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Gorgeous New Map of the Moon Is Most Detailed to Date

The rendering builds on decades of data that dates back to the Apollo missions, which happened some fifty years ago




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Researchers Reveal Hidden Details in Vermeer's 'Girl With a Pearl Earring'

New scans revealed the figure's now-faded eyelashes and green backdrop, but her identity remains a mystery




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France Is Slowly Bringing Back Its 'Forgotten Vegetables'

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




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Retailers scramble to prepare for impending reopening news

Many retailers are eager to hear more details from the province about when and how they should reopen after weeks of being closed to the public. The next phase of recovery is expected to start Friday.



  • News/Canada/New Brunswick

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Retail stores in Fort William First Nation reopen to general public

Retail stores in Fort William First Nation (FWFN) reopened to the general public on May 5, but they are under new operating requirements, the band council announced Friday. However, the residential area of the First Nation remains accessible only to people who live in the community.



  • News/Canada/Thunder Bay

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Protein shredder in brain cells indirectly regulates fat metabolism

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




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Stephen S Poloz: Release of the Monetary Policy Report

Opening statement by Mr Stephen S Poloz, Governor of the Bank of Canada, at the press conference following the release of the Monetary Policy Report, Ottawa, Ontario, 15 April 2020.




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December 10 Metals Commentary: Larry Shover

Larry Shover, SFG Alternatives




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December 11 Metals Commentary: Bob Iaccino

Bob Iaccino, Path Trading Partners




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December 12 Metals Commentary: Larry Shover

Larry Shover, SFG Alternatives




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December 13 Metals Commentary: Dan Deming

Dan Deming, KKM Financial




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December 13 Metals Commentary: Dan Deming

Dan Deming, KKM Financial




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December 17 Metals Commentary: Larry Shover

Larry Shover, SFG Alternatives




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December 18 Metals Commentary: Bob Iaccino

Bob Iaccino, Path Trading Partners




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December 19 Metals Commentary: Larry Shover

Larry Shover, SFG Alternatives




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December 20 Metals Commentary: Bob Iaccino

Bob Iaccino, Path Trading Partners




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December 21 Metals Commentary: Bob Iaccino

Bob Iaccino, Path Trading Partners




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December 24 Metals Commentary: Bob Iaccino

Bob Iaccino, Path Trading Partners




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December 26 Metal Commentary: Larry Shover

Larry Shover, Efficient Advisors




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December 27 Metals Commentary: Bob Iaccino

Bob Iaccino, Path Trading Partners




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December 28 Metals Commentary: Bob Iaccino

Bob Iaccino, Path Trading Partners




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December 31 Metals Commentary: Scott Bauer

Scott Bauer, Prosper Trading Academy




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January 2 Metals Commentary: Dan Deming

Dan Deming, KKM Financial




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January 3 Metals Commentary: Bob Iaccino

Bob Iaccino, Path Trading Partners