40 research outputs found

    Neutral sphingomyelinase mediates the co-morbidity trias of alcohol abuse, major depression and bone defects

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    Mental disorders are highly comorbid and occur together with physical diseases, which are often considered to arise from separate pathogenic pathways. We observed in alcohol-dependent patients increased serum activity of neutral sphingomyelinase. A genetic association analysis in 456,693 volunteers found associations of haplotypes of SMPD3 coding for NSM-2 (NSM) with alcohol consumption, but also with affective state, and bone mineralisation. Functional analysis in mice showed that NSM controls alcohol consumption, affective behaviour, and their interaction by regulating hippocampal volume, cortical connectivity, and monoaminergic responses. Furthermore, NSM controlled bone–brain communication by enhancing osteocalcin signalling, which can independently supress alcohol consumption and reduce depressive behaviour. Altogether, we identified a single gene source for multiple pathways originating in the brain and bone, which interlink disorders of a mental–physical co-morbidity trias of alcohol abuse—depression/anxiety—bone disorder. Targeting NSM and osteocalcin signalling may, thus, provide a new systems approach in the treatment of a mental–physical co-morbidity trias

    Measurement of the nuclear modification factor for muons from charm and bottom hadrons in Pb+Pb collisions at 5.02 TeV with the ATLAS detector

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    Heavy-flavour hadron production provides information about the transport properties and microscopic structure of the quark-gluon plasma created in ultra-relativistic heavy-ion collisions. A measurement of the muons from semileptonic decays of charm and bottom hadrons produced in Pb+Pb and pp collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV with the ATLAS detector at the Large Hadron Collider is presented. The Pb+Pb data were collected in 2015 and 2018 with sampled integrated luminosities of 208 mu b(-1) and 38 mu b(-1), respectively, and pp data with a sampled integrated luminosity of 1.17 pb(-1) were collected in 2017. Muons from heavy-flavour semileptonic decays are separated from the light-flavour hadronic background using the momentum imbalance between the inner detector and muon spectrometer measurements, and muons originating from charm and bottom decays are further separated via the muon track's transverse impact parameter. Differential yields in Pb+Pb collisions and differential cross sections in pp collisions for such muons are measured as a function of muon transverse momentum from 4 GeV to 30 GeV in the absolute pseudorapidity interval vertical bar eta vertical bar < 2. Nuclear modification factors for charm and bottom muons are presented as a function of muon transverse momentum in intervals of Pb+Pb collision centrality. The bottom muon results are the most precise measurement of b quark nuclear modification at low transverse momentum where reconstruction of B hadrons is challenging. The measured nuclear modification factors quantify a significant suppression of the yields of muons from decays of charm and bottom hadrons, with stronger effects for muons from charm hadron decays

    A search for an unexpected asymmetry in the production of e+μ− and e−μ+ pairs in proton-proton collisions recorded by the ATLAS detector at root s = 13 TeV

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    This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for e(+)mu(-) and e(-)mu(+) pairs to constrain physics processes beyond the Standard Model. It uses 139 fb(-1) of proton-proton collision data recorded at root s = 13 TeV at the LHC. Targeting sources of new physics which prefer final states containing e(+)mu(-) and e(-)mu(+), the search contains two broad signal regions which are used to provide model-independent constraints on the ratio of cross sections at the 2% level. The search also has two special selections targeting supersymmetric models and leptoquark signatures. Observations using one of these selections are able to exclude, at 95% confidence level, singly produced smuons with masses up to 640 GeV in a model in which the only other light sparticle is a neutralino when the R-parity-violating coupling lambda(23)(1)' is close to unity. Observations using the other selection exclude scalar leptoquarks with masses below 1880 GeV when g(1R)(eu) = g(1R)(mu c) = 1, at 95% confidence level. The limit on the coupling reduces to g(1R)(eu) = g(1R)(mu c) = 0.46 for a mass of 1420 GeV

    Neutral sphingomyelinase mediates the co-morbidity trias of alcohol abuse, major depression and bone defects

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    Abstract Mental disorders are highly comorbid and occur together with physical diseases, which are often considered to arise from separate pathogenic pathways. We observed in alcohol-dependent patients increased serum activity of neutral sphingomyelinase. A genetic association analysis in 456,693 volunteers found associations of haplotypes of SMPD3 coding for NSM-2 (NSM) with alcohol consumption, but also with affective state, and bone mineralisation. Functional analysis in mice showed that NSM controls alcohol consumption, affective behaviour, and their interaction by regulating hippocampal volume, cortical connectivity, and monoaminergic responses. Furthermore, NSM controlled bone–brain communication by enhancing osteocalcin signalling, which can independently supress alcohol consumption and reduce depressive behaviour. Altogether, we identified a single gene source for multiple pathways originating in the brain and bone, which interlink disorders of a mental–physical co-morbidity trias of alcohol abuse—depression/anxiety—bone disorder. Targeting NSM and osteocalcin signalling may, thus, provide a new systems approach in the treatment of a mental–physical co-morbidity trias

    Stand-alone system for small recreation vehicle

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    Tato diplomová práce se zabývá návrhem ostrovního systému pro malý o\-byt\-ný automobil. Shrnuje informace o možném použití obnovitelných zdrojů elektrické energie, jako mobilních zdrojů energie a blíže popisuje vybraný princip přeměny sluneční energie na elektrickou. Hlavním výsledkem této práce je návrh dvou variant fotovoltaických systémů pro napájení vybraných spotřebičů instalovaných v přestavěném obytném automobilu Volkswagen Transporter T5. Na základě navržených fotovoltaických systémů jsou provedeny simulace pro tři různá místa s odlišnými klimatickými podmínkami a jejich provoz je následně zhodnocen.ObhájenoThis diploma thesis deals with the design of stand-alone system for small recreation vehicle. It summarizes the information about possible use of renewable energy sources as mobile sources and describes the selected principle of converting solar energy into electricity. The main result of this work is the design of two variants of photovoltaic systems for the power supply of selected appliances installed in the converted recreation vehicle Volkswagen Transporter T5. Based on the proposed photovoltaic systems, simulations are made for three different places with different climatic conditions and their operation is subsequently evaluated

    Light effects controlled by audio signal

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    Tato bakalářská práce se zabývá návrhem a realizací světelného efektu řízeného audio signálem, nazývaného barevná hudba. Shrnuje potřebné informace pro realizaci, jako jsou například možnosti realizace a vlastnosti frekvenčních filtrů. Na základě těchto informací jsou vybrány Sallen-Key filtry a zapojení navrženo a realizováno. Práce je podpořena simulacemi filtrů a měřením na reálné aplikaci.Katedra elektroenergetiky a ekologieObhájenoThis bachelor work describes the design and the realization of lighting effects-driven audio signal, called color music. information needed for realization is summarized, possible ways of the realization and properties of frequency filters. Sallen-Key filters are chosen and designed according to the requirements of the application. It is supported by simulations and measurements of filters on a real application

    Human-Centered and Error-Resilient Systems Development : IFIP WG 13.2/13.5 Joint Working Conference, 6th International Conference on Human-Centered Software Engineering, HCSE 2016, and 8th International Conference on Human Error, Safety, and System Development, HESSD 2016, Proceedings

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    International audienceThis book constitutes the refereed proceedings of the IFIP WG 13.2/13.5 Joint Working Conferences: 6th International Conference on Human-Centered Software Engineering, HCSE 2016, and 8th International Conference on Human Error, Safety, and System Development, HESSD 2016, held in Stockholm, Sweden, in August 2016. The 11 full papers and 14 short papers presented were carefully reviewed and selected from 32 submissions. The papers cover various topics such as integration of software engineering and user-centered design; HCI models and model-driven engineering; incorporating guidelines and principles for designing usable products in the development process; usability engineering; methods for user interface design; patterns in HCI and HCSE; software architectures for user interfaces; user interfaces for special environments; representations for design in the development process; working with iterative and agile process models in HCSE; social and organizational aspects in the software development lifecycle; human-centric software development tools; user profiles and mental models; user requirements and design constraints; and user experience and software design

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