692 research outputs found
Does biological maturity actually confound gender-related differences in physical activity in preadolescence?
Aim
To examine: (i) if maturity-related gender differences in moderate-to-vigorous physical activity (MVPA) depend on how maturity status is defined and measured; and (ii) the influence of maturity level on compliance with PA recommendations.
Methods
The study involved 253 children (139 boys) aged 9.9 ± 0.9 years, with mean stature and weight of 1.39 ± 0.08 m and 35.8 ± 8.8 kg respectively. Their PA was evaluated using an Actigraph accelerometer (Model 7164). Maturity was assessed using the estimated age at peak height velocity (APHV) and a standardized APHV by gender (i.e. centred APHV).
Results
Boys engaged in significantly more MVPA than girls (P < 0.0001). There was a significant correlation between the centred APHV and MVPA in boys (r = 0.20; P = 0.016), but not in girls (r = 0.13; P = 0.155). An ancova controlling for the estimated APHV showed no significant interactions between gender and APHV, and the main effect of gender on MVPA was negated. Conversely, there was a significant main effect of APHV on MVPA (F 1,249 = 6.12; P = 0.014; η p 2 = 0.024). Only 9.1% of children met the PA recommendations, including 14.4% of boys and 2.6% of girls (P < 0.01). This observation also applies in both pre-APHV (12.7% of boys vs. 2.4% of girls, P < 0.001) and post-APHV children (23.8% of boys vs. 3.4% of girls, P < 0.0001). No differences in PA guidelines were observed between pre-APHV and post-APHV children.
Conclusions
Among prepubescent children, the influence of biological maturity on gender differences in PA may be a function of how maturity status is determined. The most physically active prepubescent children were those who were on time according to APHV
Transitional Care for Patients with Congenital Colorectal Diseases : An EUPSA Network Office, ERNICA, and eUROGEN Joint Venture
Publisher Copyright: © 2023 The Author(s)BACKGROUND: Transition of care (TOC; from childhood into adulthood) of patients with anorectal malformations (ARM) and Hirschsprung disease (HD) ensures continuation of care for these patients. The aim of this international study was to assess the current status of TOC and adult care (AC) programs for patients with ARM and HD. METHODS: A survey was developed by members of EUPSA, ERN eUROGEN, and ERNICA, including patient representatives (ePAGs), comprising of four domains: general information, general questions about transition to adulthood, and disease-specific questions regarding TOC and AC programs. Recruitment of centres was done by the ERNs and EUPSA, using mailing lists and social media accounts. Only descriptive statistics were reported. RESULTS: In total, 82 centres from 21 different countries entered the survey. Approximately half of them were ERN network members. Seventy-two centres (87.8%) had a self-reported area of expertise for both ARM and HD. Specific TOC programs were installed in 44% of the centres and AC programs in 31% of these centres. When comparing centres, wide variation was observed in the content of the programs. CONCLUSION: Despite the awareness of the importance of TOC and AC programs, these programs were installed in less than 50% of the participating centres. Various transition and AC programs were applied, with considerable heterogeneity in implementation, content and responsible caregivers involved. Sharing best practice examples and taking into account local and National Health Care Programs might lead to a better continuation of care in the future. LEVEL OF EVIDENCE: III.Peer reviewe
Roman mystique, mystiques romanesques aux XXe et XXIe siècles
The French novel from the past century is filled with desire aroused by mysticism ; this desire simultaneously stretches the novel’s boundaries. The way this desire is expressed reflects contemporary forms of the search for meaning, literature’s way of looking at its own powers and its confrontation with the limits of languag
Dark Matter Directionality Detection performance of the Micromegas-based TPC-MIMAC detector
Directional Dark Matter Detection (DDMD) can open a new signature for Weakly
Massive Interacting Particles (WIMPs) Dark Matter. The directional signature
provides in addition, an unique way to overcome the neutron and neutrino
backgrounds. In order to get the directional signature, the DDM detectors
should be sensitive to low nuclear energy recoils in the keV range and have an
angular resolution better than . We have performed experiments with
low energy () ion beam facilities to measure the angular
distribution of nuclear recoil tracks in a MIMAC detector prototype. In this
paper, we study angular spreads with respect to the electron drift direction
( incident angle) of Fluorine nuclear tracks in this low energy
range, and show nuclear recoil angle reconstruction produced by a monoenergetic
neutron field experiment. We find that a high-gain systematic effect leads to a
high angular resolution along the electron drift direction. The measured
angular distribution is impacted by diffusion, and space charge or ion feedback
effects, which can be corrected for by an asymmetry factor observed in the
flash-ADC profile. The estimated angular resolution of the incident
ion is better than at keV kinetic energy and agrees with the
simulations within %. The distributions from the nuclear recoils have been
compared with simulated results based on a modified Garfield++ code. Our study
shows that protons would be a more adapted target than heavier nuclei for DDMD
of light WIMPs. We demonstrate that directional signature from the Galactic
halo origin of a Dark Matter WIMP signal is experimentally achievable, with a
deep understanding of the operating conditions of a low pressure detector with
its diffusion mechanism.Comment: 19 pages, 12 figure
Directional detection of meV dark photons with Dandelion
This paper presents Dandelion, a new dish antenna experiment searching for
dark photons (DPs) with masses around the meV that will start acquiring data by
the end of 2023. A spherical mirror acts as a conversion surface between DPs
and standard photons that converge to a matrix of 418 Kinetic Inductance
Detectors cooled down to 150 mK. A tilt of the mirror at 1 Hz moves the
expected signal over the pixels thus enabling a continuous background
measurement. The expected signal has two modulations: a spatial modulation
providing a directional signature for the unambiguous discovery of a DP, and an
intensity modulation allowing the determination of the polarization of the DP.
For masses near the meV, the inflationary production of longitudinal and
transverse DPs are mutually excluded, thus the polarization determination by
Dandelion could shed a new light on the inflation phase of the early universe.
A first Dandelion prototype operating for 30 days would improve by more than
one order of magnitude the current exclusion limits on DPs at the meV mass
scale and would probe this region with an unprecedented discovery potential
based on directional detection.Comment: 17 pages, 7 figure
Brigthon Rock de Graham Greene : un thriller mystique
Graham Greene’s Brigton Rock is well known for being a roman noir with a religious, and even catholic, set of themes. In fact, it happens to be a spiritualist thriller : shaped by religious references, presenting typical and allegorical characters, it gives the reader to think about the reversibility of Good and Evil from the catholic Redemption point of view, which makes it a transposition into the thriller genre of the late nineteenth-century mystical naturalism
Julien Green et la hantise de l’imposture
Young author of a religious pamphlet, Julien Green suspected an ethical and aesthetic imposture in this literary positioning. The desire for truth allows him to profess his faith, but the autobiographical confidences are subjected to complex requirements. For his novels, gushing out from the depths of the psyche, he rejects the catholic label: the spiritual sense of a writing that explores the darkness of the human condition paradoxically depends on the renunciation of any apologetic purpose
La Plume et le Goupillon. L’écrivain catholique en question aux XXe et XXIe siècles
Souvent utilisée par la critique dans le champ littéraire français des XXe et XXIe siècles, l’appellation « écrivain catholique » est éminemment problématique. Elle a rarement été reconnue par les écrivains ainsi baptisés, et résulte surtout d’une construction historique, à laquelle ont contribué tous les acteurs du champ littéraire — revues, éditeurs, institutions diverses. Le présent ouvrage, auquel ont collaboré une vingtaine de spécialistes, se propose d’étudier les enjeux de cette étiquette confessionnelle, en trois temps — d’abord le processus de son émergence, ensuite certains des principaux débats et combats qu’elle a suscités, enfin les réactions des écrivains présumés « catholiques » eux-mêmes, entre revendication et défiance
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