855 research outputs found
Ready or Not: Parasympathetic Nervous System Activity During Self-Regulatory Tasks Predicts School Readiness
This study examined how parasympathetic resources are recruited during situations in which children must employ volitional self-regulation and explored associations with subsequent school readiness. At the beginning of the preschool year, children participated in hot gift-wrap (GW) and cool executive functions (EF) tasks of self-regulation. Cardiac data were collected during each task to measure parasympathetic nervous system (PNS) activity through changes in respiratory sinus arrhythmia (RSA) from baseline. Hypotheses stated that RSA suppression during both tasks would predict school readiness at the end of the year, but RSA change during GW would drive more change in school readiness scores. Results revealed higher school readiness scores for children experiencing RSA suppression during GW (B = 3.38, CI = [0.25, 6.51], p = .033) and augmentation during EF (B = -4.05, CI = [-9.04, 0.94], p = .108). These results situate self-regulation in its developmental stage and corresponding context.Master of Art
An overview of the global statistics on lightning fatalities
Lightning is a major cause of weather related mortality around the world. In the United States, lightning typically kills more people in a year than any other storm disaster except floods. Due to persistent lightning safety efforts and an annual National Lightning Safety Awareness Week campaign, US lightning deaths have decreased to an average of about 50 per year in the past decade. Good statistics about death and injuries around the world are just beginning to be collected. This paper presents an update and overview of the global statistics and trends on lightning fatalities which include the gender, activity, time of event and number of casualties. In addition, meteorological info will also be considered in relation to the lightning activity and fatalities
LIBERDADE RELIGIOSA, HOMOSSEXUALISMO E DISCURSO DO ÓDIO
O presente artigo trata da relação entre a liberdade de religião e sua manifestação no espaço público, onde se buscou, a partir da liberdade de religião enquanto direito fundamental, expor a importância de garantir o seu exercício no espaço público, distinguindo este exercício do discurso do ódio, especificamente em relação ao homossexualismo
Brain Distribution of 10 cart Transcripts and Their Response to 4 Days of Fasting in Atlantic Salmon (Salmo salar L.)
Cocaine- and amphetamine-regulated transcript (CART) has been known to be involved in feeding and energy balance in mammals, acting as an anorexigenic neuropeptide in hypothalamus. In Atlantic salmon, little is known about Cart brain localization and its function. In this study, in silico analysis revealed the existence of 10 cart paralogs, here named cart1a, 1b1, 1b2, 2a, 2b1, 2b2, 3a1, 3a2, 3b, and 4. The Atlantic salmon Cart sequences shared from 19 to 50% of identity with the human homolog and between 25 and 90% of sequence identity among paralogs, except for Cart4 which only shared 18–23% of identity. We further explored cart mRNA expressions in 8 brain regions (Olfactory Bulb-OB, Telencephalon-TEL, Midbrain-MB, Cerebellum-CE, Hypothalamus-HYP, Saccus vasculosus-SV, Pituitary-PT, and Brain Stem-BS) of Atlantic salmon smolt under 4 days of fasting and continuous fed conditions. The cart paralogs analyzed were widely distributed among the brain regions and OB, TEL, HYP, MB, and BS seemed to be the major sites of expression. The expression of cart1a and 1b showed quite similar pattern in MB, HYP, and BS. The expression of cart2a had the highest in MB followed by HYP and TEL. The cart3a transcript was widely distributed in rostrocaudal regions of brain except in OB and SV whereas cart3b was predominantly expressed in BS followed by MB. Expression of cart4 was high in HYP followed by TEL. With regards to effect of feeding status the Atlantic salmon cart2b, which is the most abundant among the paralogs, was upregulated after 4 days of fasting in OB, MB, and HYP compared to fed group. This may suggest an unexpected, but possible orexigenic role of cart2b in Atlantic salmon or a fasting induced stress effect. No other significant effect was observed. Collectively, the differential expressions of the cart paralogs in different brain regions suggest that they may have roles in regional integration of appetite signals and are possibly involved in regulating other brain functions in Atlantic salmon. The fact that salmon has 10 cart paralogs, while mammalians only one, opens interesting perspectives for comparative research on evolutionary adaptations of gene function in the control of appetite and energy homeostasis.publishedVersio
The MATHUSLA Test Stand
The rate of muons from LHC collisions reaching the surface above the
ATLAS interaction point is measured and compared with expected rates from
decays of and bosons and - and -quark jets. In addition, data
collected during periods without beams circulating in the LHC provide a
measurement of the background from cosmic ray inelastic backscattering that is
compared to simulation predictions. Data were recorded during 2018 in a 2.5
2.5 6.5~ active volume MATHUSLA test stand detector
unit consisting of two scintillator planes, one at the top and one at the
bottom, which defined the trigger, and six layers of RPCs between them, grouped
into three -measuring layers separated by 1.74 m from each other.
Triggers selecting both upward-going tracks and downward-going tracks were
used.Comment: 18 pages, 11 figures, 1 tabl
Lightning safety scheme for sheltering structures in low-income societies and problematic environments
This paper discusses various practical difficulties of implementing internationally and nationally recognized lightning protection standards on small shelters. In aiming to minimize human injuries and deaths due to lightning related accidents for people who take shelter in unprotected structures during thunderstorms, this study proposes out-of-the-box solutions that may save many lives in societies that cannot afford packages of total solution. However, the proposed protection schemes can be applied even in developed countries or wealthy societies where strategic problems such as remoteness of the sites of concern and practical solutions beyond the peripherals of standardized recommendations are demanded. It should be noted that these are last resort solutions rather than replacement for recommendations in international standards
Occupational exposures to organic dust in Irish bakeries and a pizzeria restaurant
Project EXPOsE, nº 23222 (02/SAICT/2016)For decades, occupational exposure to flour dust has been linked to a range of respiratory diseases, including occupational asthma, thought to result from exposure to fungi present in the flour. Antifungal resistance is of increasing prevalence in clinical settings, and the role of occupational and environmental exposures, particularly for specific fungal species, is of concern. Occupational exposure to flour dust can occur in a range of occupational settings, however, few studies have focused on restaurant workers. The objective of this study was to measure occupational exposure to the flour and microbial contamination, including azole resistance screening, in two small commercial bakeries and in a pizzeria. Personal full shift inhalable dust measurements were collected from workers and were analyzed for inhalable dust and fungi, bacteria, azole resistance, and mycotoxins. Samples of settled dust were collected, and electrostatic dust cloths (EDC) were deployed and analyzed for microbial contamination, including azole resistance screening, and mycotoxins. Geometric mean exposures of 6.5 mg m-³ were calculated for inhalable dust, however, exposures of up to 18.30 mg m-³ were measured-70% of personal exposure measurements exceeded the occupational exposure limit for flour dust of 1.0 mg m-³. The air and EDC fungal counts were similar to those reported in previous studies for similar occupational environments. The fungi were dominated by Penicillium genera, however Aspergillus genera, including Fumigati and Flavi sections, were observed using culture-based methods, and the Fumigati section was also observed by molecular tools. Both Aspergillus sections were identified on the azole resistance screening. Mycotoxins were also detected in the settled dust samples, dominated by deoxynivalenol (DON). The role of environmental exposure in both the development of antimicrobial resistance and the total mycotoxin body burden is a growing concern; therefore, the presence of azole-resistant fungi and mycotoxin contamination, although low in magnitude, is of concern and warrants further investigation.info:eu-repo/semantics/publishedVersio
Conservation of oceanic island floras: Present and future global challenges
Currentthreatstotheplanet’sbiodiversityareunprecedented,andtheyparticularlyimperilinsular
floras.Inthisinvestigation,weusethethreatfactorsidentifiedbytheMillenniumEcosystem
Assessmentasthemaindriversofbiodiversitylossonislandstodefineandrank13current,continuing
threatstotheplantdiversityofninefocalarchipelagoswherevolcanicorigin(orintheSeychellesa
prolongedisolationafteracontinentalorigin)hasproducedahighdegreeofendemicityandfragilityin
the faceofhabitatalteration.Wealsoconductaglobalendangermentassessmentbasedonthe
numbersofinsularendemicplantsintheendangered(EN)andcriticallyendangered(CR)IUCN
categoriesfor53islandgroupswithanestimated9951endemicplantspecies,providinga
representativesampleoftheworld’sinsularsystemsandtheirfloristicrichness.Ouranalysesindicate
that isolationdoesnotsignificantlyinfluenceendangerment,butplantendemicsfromverysmall
islandsaremoreoftencriticallyendangered.Weestimatethatbetween3500and6800oftheestimated
70,000 insularendemicplantspeciesworldwidemightbehighlythreatened(CR+EN)andbetweenca.
2000 and2800ofthemincriticaldangerofextinction(CR).Basedontheseanalyses,andona
worldwideliteraturereviewofthebiologicalthreatfactorsconsidered,weidentifychallenging
questionsforconservationresearch,asking(i)whatarethemosturgentprioritiesfortheconservation
of insularspeciesandfloras,and(ii)withtheknowledgeandassetsavailable,howcanweimprovethe
impactofconservationscienceandpracticeonthepreservationofislandbiodiversity?Ouranalysis
indicatesthatthesynergisticactionofmanythreatfactorscaninducemajorecologicaldisturbances,
leadingtomultipleextinctions.Wereviewweaknessesandstrengthsinconservationresearchand
managementintheninefocalarchipelagos,andhighlighttheurgentneedforconservationscientiststo
shareknowledgeandexpertise,identifyanddiscusscommonchallenges,andformulatemulti-
disciplinaryconservationobjectivesforinsularplantendemicsworldwide.Toourknowledge,thisisthe
mostup-to-dateandcomprehensivesurveyyettoreviewthethreatfactorstonativeplantsonoceanic
islandsanddefinepriorityresearchquestions
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