7 research outputs found

    A glutĂ©nmentesen tĂĄplĂĄlkozĂł fogyasztĂłk Ă©letminƑsĂ©ge. MagyarorszĂĄgi Ă©s romĂĄniai kĂ©rdƑíves felmĂ©rĂ©s eredmĂ©nyei = Quality of life of consumers following a gluten-free diet. Results of a questionnaire survey in Hungary and Romania

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    Absztrakt: BevezetĂ©s Ă©s cĂ©lkitƱzĂ©s: A fogyasztĂłi egĂ©szsĂ©gtudatossĂĄg fokozĂłdĂĄsĂĄval a glutĂ©n a diĂ©tĂĄra szorulĂł coeliakiĂĄs betegek mellett – kĂŒlönbözƑ kedvezƑ egĂ©szsĂ©gĂŒgyi hatĂĄsok remĂ©nyĂ©ben – szĂĄmos fogyasztĂł ĂĄltal kerĂŒlendƑ Ă©lelmiszer-összetevƑvĂ© vĂĄlt. A diĂ©ta szigorĂș betartĂĄsa komoly lemondĂĄsokat Ă©s Ă©letmĂłdbeli vĂĄltozĂĄsokat követel a betegektƑl, ami Ă©letminƑsĂ©gĂŒket is kedvezƑtlenĂŒl Ă©rinti. Jelen munkĂĄnk cĂ©lja a magyarorszĂĄgi Ă©s romĂĄniai, glutĂ©nmentes diĂ©tĂĄt folytatĂł fogyasztĂłk Ă©letminƑsĂ©gĂ©nek megismerĂ©se Ă©s az arra gyakorolt negatĂ­v hatĂĄsok feltĂĄrĂĄsa. MĂłdszer: Online kĂ©rdƑíves adatgyƱjtĂ©sĂŒnket 1155 magyarorszĂĄgi Ă©s romĂĄniai felnƑtt fogyasztĂł rĂ©szvĂ©telĂ©vel vĂ©geztĂŒk. EredmĂ©nyek: A glutĂ©nmentesen tĂĄplĂĄlkozĂł fogyasztĂłk szĂĄmĂĄra az önfegyelem hiĂĄnya viszonylag könnyen lekĂŒzdhetƑ akadĂĄly, Ă©letvitelĂŒket azonban a tĂĄrsas összejövetelek, az otthonon kĂ­vĂŒli Ă©tkezĂ©s negatĂ­van befolyĂĄsolta. Mindemellett Ă©letvitelben Ă©s anyagilag is megterhelƑ az Ă©trend betartĂĄsa. A magyarorszĂĄgi fogyasztĂłk szĂĄmĂĄra a kĂŒlsƑ tĂ©nyezƑk – mint a termĂ©kek ĂĄra, vĂĄlasztĂ©ka, Ă­ze, beszerezhetƑsĂ©ge – jelentƑsebb akadĂĄlykĂ©nt jelentkeztek, mĂ­g a romĂĄniai megkĂ©rdezettek szĂĄmĂĄra inkĂĄbb a belsƑ tĂ©nyezƑk (termĂ©kismeret hiĂĄnya, Ă©letmĂłd, önfegyelem hiĂĄnya) okoztak nagyobb gondot. Az allergĂ©n Ă©s intoleranciĂĄt okozĂł összetevƑk jelölĂ©si kötelezettsĂ©ge elĂ©rte cĂ©ljĂĄt, mivel megkönnyĂ­tette a diĂ©tĂĄzĂłk Ă©lelmiszer-vĂĄlasztĂĄsĂĄt, fokozta bizalmukat. KövetkeztetĂ©sek: A tanulmĂĄny rĂĄmutat, hogy a diĂ©tĂĄzĂłk Ă©letminƑsĂ©gĂ©nek javĂ­tĂĄsa nem csupĂĄn ĂĄltalĂĄnos intĂ©zkedĂ©sek (az otthonon kĂ­vĂŒli Ă©tkezĂ©st ellĂĄtĂłk felkĂ©szĂŒltsĂ©gĂ©nek javĂ­tĂĄsa Ă©s a termĂ©kek ĂĄrĂĄnak racionalizĂĄlĂĄsa), hanem orszĂĄgspecifikus cselekvĂ©seken keresztĂŒl is fokozhatĂł. Orv Hetil. 2019; 160(25): 980–986. | Abstract: Introduction and aim: With the rising consumer’s health awareness, especially towards patients with celiac disease, gluten has become a food ingredient to be avoided by many people expecting various positive health effects. The strict adherence of diet requires serious abandonments and lifestyle changes that affect directly their quality of life. The aim of the present study was to recognise the quality of life of Hungarian and Romanian consumers following a gluten-free diet as well as to explore the negative effects on them. Method: An online questionnaire survey was conducted upon 1155 Hungarian and Romanian respondents. Results: For gluten-free consumers, self-control was relatively easy to overcome, but their lifestyle was negatively affected by social events and dining out. In addition, diet adherence was a burden from both lifestyle and financial point of view. For Hungarian consumers, external factors such as price, choice, taste and availability of products had become a major obstacle, while Romanian ones were more likely to be affected by internal factors (product information, diet knowledge, lifestyle, self-control). Mandatory labelling of substances and products causing allergies and intolerances has achieved its purpose, as it has made it easier for consumers on diet to choose food and increased their confidence. Conclusions: The study points out that dieters’ quality of life can be enhanced not only by general actions (improving the preparedness of out-of-home meal services and rationalising the price of products), but also through country-specific community intervention. Orv Hetil. 2019; 160(25): 980–986

    Search for intermediate mass black hole binaries in the first observing run of Advanced LIGO

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    International audienceDuring their first observational run, the two Advanced LIGO detectors attained an unprecedented sensitivity, resulting in the first direct detections of gravitational-wave signals produced by stellar-mass binary black hole systems. This paper reports on an all-sky search for gravitational waves (GWs) from merging intermediate mass black hole binaries (IMBHBs). The combined results from two independent search techniques were used in this study: the first employs a matched-filter algorithm that uses a bank of filters covering the GW signal parameter space, while the second is a generic search for GW transients (bursts). No GWs from IMBHBs were detected; therefore, we constrain the rate of several classes of IMBHB mergers. The most stringent limit is obtained for black holes of individual mass 100  M⊙, with spins aligned with the binary orbital angular momentum. For such systems, the merger rate is constrained to be less than 0.93  Gpc−3 yr−1 in comoving units at the 90% confidence level, an improvement of nearly 2 orders of magnitude over previous upper limits

    First low-frequency Einstein@Home all-sky search for continuous gravitational waves in Advanced LIGO data

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    International audienceWe report results of a deep all-sky search for periodic gravitational waves from isolated neutron stars in data from the first Advanced LIGO observing run. This search investigates the low frequency range of Advanced LIGO data, between 20 and 100 Hz, much of which was not explored in initial LIGO. The search was made possible by the computing power provided by the volunteers of the Einstein@Home project. We find no significant signal candidate and set the most stringent upper limits to date on the amplitude of gravitational wave signals from the target population, corresponding to a sensitivity depth of 48.7  [1/Hz]. At the frequency of best strain sensitivity, near 100 Hz, we set 90% confidence upper limits of 1.8×10-25. At the low end of our frequency range, 20 Hz, we achieve upper limits of 3.9×10-24. At 55 Hz we can exclude sources with ellipticities greater than 10-5 within 100 pc of Earth with fiducial value of the principal moment of inertia of 1038  kg m2

    First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data

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    International audienceSpinning neutron stars asymmetric with respect to their rotation axis are potential sources of continuous gravitational waves for ground-based interferometric detectors. In the case of known pulsars a fully coherent search, based on matched filtering, which uses the position and rotational parameters obtained from electromagnetic observations, can be carried out. Matched filtering maximizes the signal-to-noise (SNR) ratio, but a large sensitivity loss is expected in case of even a very small mismatch between the assumed and the true signal parameters. For this reason, narrow-band analysis methods have been developed, allowing a fully coherent search for gravitational waves from known pulsars over a fraction of a hertz and several spin-down values. In this paper we describe a narrow-band search of 11 pulsars using data from Advanced LIGO’s first observing run. Although we have found several initial outliers, further studies show no significant evidence for the presence of a gravitational wave signal. Finally, we have placed upper limits on the signal strain amplitude lower than the spin-down limit for 5 of the 11 targets over the bands searched; in the case of J1813-1749 the spin-down limit has been beaten for the first time. For an additional 3 targets, the median upper limit across the search bands is below the spin-down limit. This is the most sensitive narrow-band search for continuous gravitational waves carried out so far

    Open data from the first and second observing runs of Advanced LIGO and Advanced Virgo

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    Advanced LIGO and Advanced Virgo are monitoring the sky and collecting gravitational-wave strain data with sufficient sensitivity to detect signals routinely. In this paper we describe the data recorded by these instruments during their first and second observing runs. The main data products are gravitational-wave strain time series sampled at 16384 Hz. The datasets that include this strain measurement can be freely accessed through the Gravitational Wave Open Science Center at http://gw-openscience.org, together with data-quality information essential for the analysis of LIGO and Virgo data, documentation, tutorials, and supporting software

    Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo

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    International audienceIntermediate-mass black holes (IMBHs) span the approximate mass range 100−105 M⊙, between black holes (BHs) that formed by stellar collapse and the supermassive BHs at the centers of galaxies. Mergers of IMBH binaries are the most energetic gravitational-wave sources accessible by the terrestrial detector network. Searches of the first two observing runs of Advanced LIGO and Advanced Virgo did not yield any significant IMBH binary signals. In the third observing run (O3), the increased network sensitivity enabled the detection of GW190521, a signal consistent with a binary merger of mass ∌150 M⊙ providing direct evidence of IMBH formation. Here, we report on a dedicated search of O3 data for further IMBH binary mergers, combining both modeled (matched filter) and model-independent search methods. We find some marginal candidates, but none are sufficiently significant to indicate detection of further IMBH mergers. We quantify the sensitivity of the individual search methods and of the combined search using a suite of IMBH binary signals obtained via numerical relativity, including the effects of spins misaligned with the binary orbital axis, and present the resulting upper limits on astrophysical merger rates. Our most stringent limit is for equal mass and aligned spin BH binary of total mass 200 M⊙ and effective aligned spin 0.8 at 0.056 Gpc−3 yr−1 (90% confidence), a factor of 3.5 more constraining than previous LIGO-Virgo limits. We also update the estimated rate of mergers similar to GW190521 to 0.08 Gpc−3 yr−1.Key words: gravitational waves / stars: black holes / black hole physicsCorresponding author: W. Del Pozzo, e-mail: [email protected]† Deceased, August 2020
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