Heat and risk of myocardial infarction: hourly level case-crossover analysis of MINAP database.

OBJECTIVE: To quantify the association between exposure to higher temperatures and the risk of myocardial infarction at an hourly temporal resolution. DESIGN: Case-crossover study. SETTING: England and Wales Myocardial Ischaemia National Audit Project (MINAP) database. PARTICIPANTS: 24,861 hospital admissions for myocardial infarction occurring in 11 conurbations during the warmest months (June to August) of the years 2003-09. MAIN OUTCOME MEASURE: Odds ratio of myocardial infarction for a 1 °C increase in temperature. RESULTS: Strong evidence was found for an effect of heat acting 1-6 hours after exposure to temperatures above an estimated threshold of 20 °C (95% confidence interval 16 °C to 25 °C). For each 1 °C increase in temperature above this threshold, the risk of myocardial infarction increased by 1.9% (0.5% to 3.3%, P=0.009). Later reductions in risk seemed to offset early increases in risk: the cumulative effect of a 1 °C rise in temperature above the threshold was 0.2% (-2.1% to 2.5%) by the end of the third day after exposure. CONCLUSIONS: Higher ambient temperatures above a threshold of 20 °C seem to be associated with a transiently increased risk of myocardial infarction 1-6 hours after exposure. Reductions in risk at longer lags are consistent with heat triggering myocardial infarctions early in highly vulnerable people who would otherwise have had a myocardial infarction some time later ("short term displacement"). Policies aimed at reducing the health effects of hot weather should include consideration of effects operating at sub-daily timescales

Tellurium, selenium and cobalt enrichment in Neoproterozoic black shales, Gwna Group, UK : Deep marine trace element enrichment during the Second Great Oxygenation Event

We are grateful to John Still for his skilled technical support and the ACEMAC facility at the University of Aberdeen. Research funded by NERC grant NE/M010953/1 and NERC facility grant IP-1631-0516. AJB is funded by NERC support of the Isotope Community Support Facility SUERC. The authors thank Eva Stüeken, Ross Large and one anonymous reviewer for their constructive feedback on the original manuscript.Peer reviewedPublisher PD

Use of the Functional Movement Screening in Division III Collegiate Athletics

The Functional Movement Screen (FMS) aims to expose movement limitations and asymmetries by screening an individual on seven different fundamental movement patterns. Limited research has been conducted using individual FMS test scores comparatively to composite scores. The purpose of this study was to examine the effects of a corrective exercise program on improving individual FMS scores for a collegiate basketball team. Thirteen healthy, male student athletes from an NCAA Division III men’s basketball team performed all seven FMS movements. The team was randomly divided into control and treatment groups. The control group followed their typical pre-practice dynamic warm-up four days per week for four weeks, while the treatment group performed a specific warm-up geared towards improving FMS for four days per week for four weeks. The athletes performed the complete FMS following the completion of the training program. The specific corrective exercise training program did not significantly change FMS movements

Movement Capability Changes in Collegiate Basketball Players Following a Corrective Exercise Program

While much data is available regarding Functional Movement Screen (FMS) scores in corrective exercise programs and injury prevention, limited data exists regarding comparisons between movement patterns in various sports. The purpose of this study was to review FMS scores to find any mobility and stability differences between several NCAA Division III sports. In this study, 83 healthy student-athletes, from four different sports teams, performed a battery of tests to measure physical capabilities prior to the beginning of their competitive season. All participating student-athletes performed the FMS, which is a tool used to gauge fundamental movement patterns including range of motion, stability, and balance, to measure movement asymmetries and limitations

The effects of hourly differences in air pollution on the risk of myocardial infarction: case crossover analysis of the MINAP database.

OBJECTIVES: To investigate associations between air pollution levels and myocardial infarction (MI) on short timescales, with data at an hourly temporal resolution. DESIGN: Time stratified case crossover study linking clinical data from the Myocardial Ischaemia National Audit Project (MINAP) with PM(10), ozone, CO, NO(2), and SO(2) data from the UK National Air Quality Archive. Pollution effects were investigated with delays (lags) of 1-6, 7-12, 13-18, 19-24, and 25-72 hours in both single and multi-pollutant models, adjusted for ambient temperature, relative humidity, circulating levels of influenza and respiratory syncytial virus, day of week, holidays, and residual seasonality within calendar month strata. SETTING: Population based study in 15 conurbations in England and Wales. SUBJECTS: 79,288 diagnoses of myocardial infarction recorded over the period 2003-6. MAIN OUTCOME MEASURES: Excess risk of myocardial infarction per 10 µg/m(3) increase in pollutant level. RESULTS: In single pollutant models, PM(10) and NO(2) levels were associated with a very short term increase in risk of myocardial infarction 1-6 hours later (excess risks 1.2% (95% confidence interval 0.3 to 2.1) and 1.1% (0.3 to 1.8) respectively per 10 μg/m(3) increase); the effects persisted in multi-pollutant models, though with only weak evidence of an independent PM(10) effect (P = 0.05). The immediate risk increases were followed by reductions in risk at longer lags: we found no evidence of any net excess risk associated with the five pollutants studied over a 72 hour period after exposure. CONCLUSIONS: Higher levels of PM(10) and NO(2), which are typically markers of traffic related pollution, seem to be associated with transiently increased risk of myocardial infarction 1-6 hours after exposure, but later reductions in risk suggest that air pollution may be associated with bringing events forward in time ("short-term displacement") rather than increasing overall risk. The well established effect of air pollution on cardiorespiratory mortality may not be mediated through increasing the acute risk of myocardial infarction, but through another mechanism

Generalized Alder-Type Partition Inequalities

In 2020, Kang and Park conjectured a "level $2$" Alder-type partition inequality which encompasses the second Rogers-Ramanujan Identity. Duncan, Khunger, the fourth author, and Tamura proved Kang and Park's conjecture for all but finitely many cases utilizing a "shift" inequality and conjectured a further, weaker generalization that would extend both Alder's (now proven) as well as Kang and Park's conjecture to general level. Utilizing a modified shift inequality, Inagaki and Tamura have recently proven that the Kang and Park conjecture holds for level $3$ in all but finitely many cases. They further conjectured a stronger shift inequality which would imply a general level result for all but finitely many cases. Here, we prove their conjecture for large enough $n$, generalize the result for an arbitrary shift, and discuss the implications for Alder-type partition inequalities

Selenium and other trace element mobility in waste products and weathered sediments at Parys Mountain copper mine, Anglesey, UK

Acknowledgments: The authors wish to thank the Parys Underground Group for their support in access and sampling. This research was supported by a grant from the Natural Environment Research Council (NERC) (NE/M010953/1). The manuscript was improved by the helpful comments of three reviewers.Peer reviewedPublisher PD

Selenium and tellurium concentrations of Carboniferous British coals

The authors wish to thank Kier Group, the British Coal Utilisation Research Association (BCURA) and Uniper (E.On) for kindly providing coal samples. The authors are grateful to Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), and Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS) for supporting this study. The authors are grateful for the thorough and constructive comments from two anonymous reviewers, as well as the careful editorial handling of Prof. Ian Somerville. This work was supported by the NERC under Grant number NE/L001764/1.Peer reviewedPublisher PD

Gold in irish coal : Palaeo-concentration from metalliferous groundwaters

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Selenium and tellurium resources in Kisgruva Proterozoic volcanogenic massive sulphide deposit (Norway)

The authors are extremely grateful to Kåre Kullerud of the Norsk Bergverksmuseum (Kongsberg) for sharing his wealth of knowledge of the Kisgruva site and assisting in accessibility. The authors also wish to thank Abbie Mclaughlin (University of Aberdeen) for her assistance with XRD analysis. The authors thank the anonymous reviewers for their careful reading and corrections of the manuscript. Funding This work was supported by the UK Natural Environment Research Council (NERC); Minerals Security of Supply (SoS) Grant NE/M010953/1, Tellurium and Selenium Cycling and Supply (TeaSe).Peer reviewedPublisher PD