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Nurses\u27 Resilience in the Face of Coronavirus (COVID-19): An International View
No full textThe purpose of this cross-sectional study was to examine factors associated with nurses\u27 resilience during the COVID-19 pandemic. Data were collected in the latter half of 2020 from 904 nurses across Japan, Republic of Korea, Republic of Turkey, and the United States. The questionnaire included the Connor-Davidson Resilience Scale 10, plus demographics and 20 questions about practice environment, workplace safety concerning infection control, COVID-related experience, and organizational support. Fear of becoming infected, intention to leave nursing, and having had a positive COVID-19 test were inversely associated with resilience (p \u3c 0.05). Regression analysis indicated that U.S. nurses had significantly greater resilience than nurses in the other countries examined (p \u3c 0.001). Nurses reporting organization support and those who participated in policy and procedure development had higher resilience scores (p \u3c 0.01). Organizational support, involving nurses in policy development, and country of practice were found to be important resilience factors in our research, which aligns with other findings. Further research is recommended to determine the optimal practice environment to support nurse resilience
Interpolation of Exponential-Type Functions on a Uniform Grid by Shifts of a Basis Function
No full textIn this paper, we present a new approach to solving the problem of interpolating a continuous function at (n + 1) equally-spaced points in the interval [0, 1], using shifts of a kernel on the (1/n)-spaced infinite grid. The archetypal example here is approximation using shifts of a Gaussian kernel. We present new results concerning interpolation of functions of exponential type, in particular, polynomials on the integer grid as a step en route to solve the general interpolation problem. For the Gaussian kernel we introduce a new class of polynomials, closely related to the probabilistic Hermite polynomials and show that evaluations of the polynomials at the integer points provide the coefficients of the interpolants. Finally we give a closed formula for the Gaussian interpolant of a continuous function on a uniform grid in the unit interval (assuming knowledge of the discrete moments of the Gaussian)
A search for transiting planets around hot subdwarfs
No full textContext: Hot subdwarfs experienced strong mass loss on the red giant branch (RGB) and are now hot and small He-burning objects. These stars constitute excellent opportunities for addressing the question of the evolution of exoplanetary systems directly after the RGB phase of evolution. Aims: In this project we aim to perform a transit survey in all available light curves of hot subdwarfs from space-based telescopes (Kepler, K2, TESS, and CHEOPS) with our custom-made pipeline SHERLOCK in order to determine the occurrence rate of planets around these stars as a function of orbital period and planetary radius. We also aim to determine whether planets that were previously engulfed in the envelope of their red giant host star can survive, even partially, as a planetary remnant. Methods: For this first paper, we performed injection-and-recovery tests of synthetic transits for a selection of representative Kepler, K2, and TESS light curves to determine which transiting bodies in terms of object radius and orbital period we will be able to detect with our tools. We also provide estimates for CHEOPS data, which we analyzed with the pycheops package. Results. Transiting objects with a radius ≤ 1.0 R⊕ can be detected in most of the Kepler, K2, and CHEOPS targets for the shortest orbital periods (1 d and shorter), reaching values as low as ∼0.3 R⊕ in the best cases. Sub-Earth-sized bodies are only reached for the brightest TESS targets and for those that were observed in a significant number of sectors. We also give a series of representative results for larger planets at greater distances, which strongly depend on the target magnitude and on the length and quality of the data. Conclusions: The TESS sample will provide the most important statistics for the global aim of measuring the planet occurrence rate around hot subdwarfs. The Kepler, K2, and CHEOPS data will allow us to search for planetary remnants, that is, very close and small (possibly disintegrating) objects
Effect of Donor Diet on In Vitro Digestibility of Forages by Fecal Inoculate
No full textPrevious research indicates equine fecal inoculates produce comparable results to cecal fluid when used for in vitro procedures to analyze dry matter digestibility (DMD). Equine hindgut microbial communities represented in fecal samples have been shown to be affected by diet. The study\u27s objective was to determine the effect of the donor diet on in vitro DMD when fecal donors were fed high starch, or high fiber diets. Six Quarter Horses were used in a crossover design to compare the effects of a grain versus forage diet on in vitro digestion of forages ranging from: CP 7.7 to 16.4 %DM, NDF 53 to 72 %DM. Feces from each horse were obtained on day 22 of each period and used to inoculate in vitro fermentation vessels in order to evaluate the effect of donor diet on the DMD, neutral detergent fiber digestibility (NDFD), and acid detergent fiber digestibility (ADFD) of four forages. Data were analyzed using the MIXED procedure of SAS to evaluate digestibility differences in the diet by forage composition interaction. Fecal samples from horses on the grain diet promoted higher NDFD of forages with high NDF and low CP when CP and NDF were used as covariates (P = .04 and .03). There was a horse effect on DMD and NDFD (P ≤ .05). Findings suggest diet may influence the hindgut microbiome\u27s ability to digest neutral detergent fiber and should be considered when selecting equine fecal samples for in vitro digestion procedures
The impact of COVID-19 on police training academies
No full textPurpose: The purpose of this study is to explore the impacts coronavirus disease 2019 (COVID-19) had on US police academies’ production of police recruits.
Design/methodology/approach: The study used a national online survey of police academy directors in the USA, followed by purposive, semi-structured interviews of select academy directors. A combination of quantitative and qualitative data is combined in a mixed methods approach.
Findings: The findings suggest that academies experienced a range of impacts related to COVID-19. These impacts lead to more questions concerning how academies and state-level governing boards responded not only to pandemic-related challenges, but also to their willingness to accept more online and alternative curriculum delivery strategies.
Originality/value: Police academies are a required step in the production of new police recruits in the USA, but researchers have paid little attention to how academies operate. While exploratory, this study provides some insights into how this aspect of policing weathered the COVID-19 pandemic, and offers suggestions for future research, as well as policy implications
The “new” normal: Re-imagining professional development amidst the COVID-19 pandemic
No full textIn response to the COVID-19 pandemic, transitioning to online education proved to be difficult due to lack of training, resources, and funding to adequately provide what every student and teacher needed. We present a framework for ongoing professional development for in-service teachers to expand their attitudes and beliefs about culturally relevant and culturally responsive teaching during a global pandemic. Specifically, we look at how professional development can build and sustain equitable instructional practices through culturally responsive teaching while addressing inequities that exist in student technology use and access. In an effort to encourage teachers to facilitate culturally responsive learning opportunities and environments and “perpetuate equitable surveillance of student technology use and access” we suggest a virtual professional development framework that includes professional learning communities, personal coaching, classroom observations, and self-reflection
First record of the asian longhorned tick haemaphysalis longicornis in missouri
No full textThe Asian longhorned tick, Haemaphysalis longicornis, is an invasive species, originally from eastern Asia, and was first reported in the USA in New Jersey. It is now reported in several eastern states. In 2018, researchers reported H. longicornis in northwest Arkansas (Benton County). This tick species is a proven vector of livestock and human diseases, which prompted the current survey of ticks in southwest Missouri. A tick drag in Greene County, Missouri, produced 2 H. longicornis nymphs on June 9, 2021. This is the first report of this species for both the state and county
Iodoperchlorobenzene acts as a dual halogen-bond donor to template a [2 + 2] cycloaddition reaction within an organic co-crystal
No full textThe formation of three isostructural co-crystals that utilize iodoperchlorobenzene as a dual halogen-bond donor is reported. These molecular solids are held together by the combination of I⋯N and Cl⋯N halogen bonds to form one-dimensional polymeric chains. Curiously, these co-crystals are isostructural to a series of related solids based upon the isosteric halogen-bond donor 1,4-diiodoperchlorobenzene. It is noteworthy that the co-crystal containing trans-1,2-bis(4-pyridyl)ethylene undergoes a near quantitative [2 + 2] cycloaddition reaction
Multi-dimensional leaf phenotypes reflect root system genotype in grafted grapevine over the growing season
No full textBackground Modern biological approaches generate volumes of multi-dimensional data, offering unprecedented opportunities to address biological questions previously beyond reach owing to small or subtle effects. A fundamental question in plant biology is the extent to which below-ground activity in the root system influences above-ground phenotypes expressed in the shoot system. Grafting, an ancient horticultural practice that fuses the root system of one individual (the rootstock) with the shoot system of a second, genetically distinct individual (the scion), is a powerful experimental system to understand below-ground effects on above-ground phenotypes. Previous studies on grafted grapevines have detected rootstock influence on scion phenotypes including physiology and berry chemistry. However, the extent of the rootstock\u27s influence on leaves, the photosynthetic engines of the vine, and how those effects change over the course of a growing season, are still largely unknown. Results Here, we investigate associations between rootstock genotype and shoot system phenotypes using 5 multi-dimensional leaf phenotyping modalities measured in a common grafted scion: ionomics, metabolomics, transcriptomics, morphometrics, and physiology. Rootstock influence is ubiquitous but subtle across modalities, with the strongest signature of rootstock observed in the leaf ionome. Moreover, we find that the extent of rootstock influence on scion phenotypes and patterns of phenomic covariation are highly dynamic across the season. Conclusions These findings substantially expand previously identified patterns to demonstrate that rootstock influence on scion phenotypes is complex and dynamic and underscore that broad understanding necessitates volumes of multi-dimensional data previously unmet
Mineral prospectivity mapping: a potential technique for sustainable mineral exploration and mining activities–a case study using the copper deposits of the Tagmout basin, Morocco
No full textMineral prospectivity mapping (MPM) based on the principle of geometric mean was applied to stream sediment geochemical, fault density, and aeromagnetic data from Tagmout basin, Morocco to determine new areas for optimizing copper exploration. The application of a fuzzy operator using stream sediment data, factor analysis, and fault density map, allowed weights to be assigned to these parameters so that the MPM function can process them to indicate the most favorable zones of copper mineralization. The model\u27s accuracy as evaluated using a normalized density index (Nd with value 1.22) shows the reliability of the method. The potential copper concentration areas represent 8.22% of the entire basin of which 30% are concentrated in the western portion of the basin and other significant areas are in the southwest and northeast portions. The results indicate that MPM is a powerful technique for planning exploration programs that aim for sustainable mining activities