bluuebunny/crossref_metadata_2025_split huggingface dataset:
The experiences of black, Asian and minority ethnic student midwives at a UK university
Authors: Pendleton John , Clews Claire , Cecile Aimee 
Published: May 2022

BackgroundEvidence acknowledges inequalities to progression and achievement for black, Asian and minority ethnic students within higher education, as well as barriers for promotion of black, Asian and minority ethnic staff within the NHS. In the UK, legislation and regulatory guidance requires students studying undergraduate midwifery to undertake their programme across both these institutions.AimsTo understand the experiences of black, Asian and minority ethnic students studying undergraduate midwifery at a UK university.MethodsThis qualitative study used semi-structured interviews with five student midwives who identified as black, Asian or minority ethnic from a university, conducted by a peer researcher. Thematic analysis was used to analyse anonymised transcript data.ResultsThree key themes were identified: ‘invisibility’, ‘emerging visibility’ and ‘managing visibility’. Participants experienced a monocultural focus in the curriculum and in practice and were exposed to racist behaviours, causing them to modify behaviours.ConclusionsA need for diverse teaching materials and cultural inclusivity across institutions was identified to help combat outdated systemic Eurocentric practices and support the implementation of recently published midwifery standards.
Numerical Study of the Hydraulic Effects of Modifying the Outlet Pipe and Diffuser Plate in Pressurized Sand Filters with Wand-Type Underdrains
Authors: Pujol Toni , Puig-Bargués Jaume , Arbat Gerard , Chaves Melissa , Duran-Ros Miquel , Pujol Joan , Ramírez de Cartagena Francisco 
Published: May 2022

HighlightsAn outlet pipe with twice the cross-sectional area reduced the filter pressure drop by 12%.Two-outlet designs did not improve the hydraulic performance of the central wand.Flow uniformity in the sand bed was improved with a central downward outlet pipe.Abstract. The pressurized sand filters used in drip irrigation systems have three zones (the water inlet, sand bed, and water outlet) with different hydraulic behaviors. Previous studies that aimed to improve the hydraulic performance of these filters focused on the water inlet and sand bed by redesigning the diffuser plate and underdrain elements, respectively. In this study, we analyzed the consequences of modifying the water outlet of a commercial porous medium filter without changing its underdrain design. The original design consisted of a horizontal pipe connected to ten horizontal wands. Five additional designs that varied in size, orientation, and number of outlets were numerically studied in four operating modes (including two sand bed heights and two superficial velocities). Comparison with the commercial design indicated that (1) an outlet pipe with twice the cross-sectional area reduced the overall filter pressure drop by up to 12% and increased the flow uniformity within the sand bed; (2) two outlets led to symmetrical behavior for the amount of water drained per wand but did not improve the water volume drained by the central wand, which drained the least amount; and (3) a central vertical outlet of equal diameter as the commercial outlet produced a similar pressure drop but increased the flow uniformity within the porous medium. For completeness, two additional diffuser designs were also studied. In comparison with the original design, the proposed designs improved the flow uniformity and weakened the water vortex above the sand surface. Keywords: Computational fluid dynamics, Drip irrigation, Filtration, Granular bed, Modeling.
Sn content gradient GeSn with strain controlled for high performance GeSn mid-infrared photodetectors
Authors: Liu Xiangquan , Zheng Jun , Niu Chaoqun , Liu Taoran , Huang Qinxing , Li Mingming , Zhang Diandian , Pang Yaqing , Liu Zhi , Zuo Yuhua , Cheng Buwen 
Published: May 2022

GeSn detectors have attracted a lot of attention for mid-infrared Si photonics, due to their compatibility with Si complementary metal oxide semiconductor technology. The GeSn bandgap can be affected by Sn composition and strain, which determines the working wavelength range of detectors. Applying the Sn content gradient GeSn layer structure, the strain of GeSn can be controlled from fully strained to completely relaxed. In this work, the strain evolution of GeSn alloys was investigated, and the effectiveness of gradually increasing Sn composition for the growth of high-Sn-content GeSn alloys was revealed. Relaxed GeSn thick films with Sn composition up to 16.3% were grown, and GeSn photodetectors were fabricated. At 77 K, the photodetectors showed a cutoff wavelength up to 4.2 μm and a peak responsivity of 0.35 A/W under 1 V at 2.53 μm. These results indicate that GeSn alloys grown on a Sn content gradient GeSn structure have promising application in mid-infrared detection.
Antibody responses against SARS-CoV-2 variants induced by four different SARS-CoV-2 vaccines in health care workers in the Netherlands: A prospective cohort study
Authors: van Gils Marit J. , Lavell Ayesha , van der Straten Karlijn , Appelman Brent , Bontjer Ilja , Poniman Meliawati , Burger Judith A. , Oomen Melissa , Bouhuijs Joey H. , van Vught Lonneke A. , Slim Marleen A. , Schinkel Michiel , Wynberg Elke , van Willigen Hugo D. G. , Grobben Marloes , Tejjani Khadija , van Rijswijk Jacqueline , Snitselaar Jonne L. , Caniels Tom G. ,   Amsterdam UMC COVID-19 S3/HCW study group, Vlaar Alexander P. J. , Prins Maria , de Jong Menno D. , de Bree Godelieve J. , Sikkens Jonne J. , Bomers Marije K. , Sanders Rogier W. 
Published: May 2022

Background
Emerging and future SARS-CoV-2 variants may jeopardize the effectiveness of vaccination campaigns. Therefore, it is important to know how the different vaccines perform against diverse SARS-CoV-2 variants.

Methods and findings
In a prospective cohort of 165 SARS-CoV-2 naive health care workers in the Netherlands, vaccinated with either one of four vaccines (BNT162b2, mRNA-1273, AZD1222 or Ad26.COV2.S), we performed a head-to-head comparison of the ability of sera to recognize and neutralize SARS-CoV-2 variants of concern (VOCs; Alpha, Beta, Gamma, Delta and Omicron). Repeated serum sampling was performed 5 times during a year (from January 2021 till January 2022), including before and after booster vaccination with BNT162b2. Four weeks after completing the initial vaccination series, SARS-CoV-2 wild-type neutralizing antibody titers were highest in recipients of mRNA-1273, followed by recipients of BNT162b2 (geometric mean titers (GMT) of 358 [95% CI 231–556] and 214 [95% CI 153–299], respectively; p<0.05), and substantially lower in those vaccinated with the adenovirus vector-based vaccines AZD1222 and Ad26.COV2.S (GMT of 18 [95% CI 11–30] and 14 [95% CI 8–25] IU/ml, respectively; p<0.001). VOCs neutralization was reduced in all vaccine groups, with the greatest reduction in neutralization GMT observed against the Omicron variant (fold change 0.03 [95% CI 0.02–0.04], p<0.001). The booster BNT162b2 vaccination increased neutralizing antibody titers for all groups with substantial improvement against the VOCs including the Omicron variant. We used linear regression and linear mixed model analysis. All results were adjusted for possible confounding of age and sex. Study limitations include the lack of cellular immunity data.

Conclusions
Overall, this study shows that the mRNA vaccines appear superior to adenovirus vector-based vaccines in inducing neutralizing antibodies against VOCs four weeks after initial vaccination and after booster vaccination, which implies the use of mRNA vaccines for both initial and booster vaccination.
A retrospective observational insight into COVID-19 exposures resulting from personal protective equipment (PPE) breaches
Authors: Gaikwad Ujjwala Nitin , Bose Oshrika , Padhi Abhishek , Jindal Atul , Nagpure Keshao , Bhargava Anudita , Das Padma 
Published: May 2022

Background
Healthcare workers (HCWs) stand the risk of acquiring infection directly, while attending to patients or indirectly while handling and testing patient specimens. Considering this, the present study was planned to assess Personal Protective Equipment (PPE) breaches and exposures among HCWs working in COVID-19 wards/ screening areas and to evaluate their COVID-19 positivity rates post-exposure concerning the level of exposure, type of PPE breach, and the cadre of HCWs exposed in COVID-19 wards.

Methods
This retrospective cross-sectional study involved the analysis of all instances of PPE breaches which occurred during a period of nine months from June 2020 to February 2021 at a tertiary care level hospital in Central India. The analysis included all exposures involving any cadre of HCWs that occurred while handling the patients or while doffing the contaminated PPE in COVID -19 wards.

Results
A total of 347 PPE breaches were analyzed from the available records of the Hospital Infection Control team repository. Amongst the 347 breaches, 268 (77.2%) were classified as low-risk exposures and 79 (22.8%) as high-risk exposures. Cadre wise distribution of high and low-risk exposures revealed that, PPE breaches occurred most commonly in the category of nursing officers (n = 174, 50.1%). Among all of the breaches, 15.2% of high-risk exposures and 2.6% of low-risk exposures resulted in COVID-19 positivity with a cumulative positivity of 5.4%. Collectively, non-mask related breaches accounted for the majority (63.2%) of the positive COVID-19 cases.

Conclusion
Appropriate use of PPE by HCWs is vital for their protection. However, breaches in the use of PPE may occur while managing COVID-19 patients due to physical and mental exhaustion among HCWs resulting from work overload. Early identification and appropriate management of HCWs with high-risk exposures can help prevent transmission to other hospital staff and patients, thus preserving resources and workforce.
Mapping the Rockumentary: Images of Sound and Fury, Gunnar Iversen and Scott Mackenzie (eds) (2021)
Authors: Querol Toni L. 
Published: May 2022

Review of: Mapping the Rockumentary: Images of Sound and Fury, Gunnar Iversen and Scott Mackenzie (eds) (2021)
Edinburgh: Edinburgh University Press, 358 pp.,
ISBN 978-1-47447-805-2, e-book, £80.00
Effect of In-ovo Injection of L-Arginine on Hatchability, Chick Quality, Performances and Muscle Histology of Native Chicken
Authors: Azhar M , Sara U , Wahyuni S 
Published: May 2022

This study aimed to determine the effect of in-ovo injection of L-arginine on hatchability, chick quality, performances, and muscle histology of native chicken. In-ovo injection was carried out on the 10th day. A total of 375 fertile eggs with an average weight ranged Â 39-43 g were grouped into 5 treatments. The first treatment was without injection (negative control), the second treatment was injection of NaCl solution 0.9% (positive control), the third treatment was injection of L-arginine solution 0.5 g per 100 ml of NaCl 0.9% (0.5%, m/v) The fourth treatment was injection of 1.0 g L-arginine solution per 100 ml of NaCl 0.9% (1.0%, m/v), and the fifth treatment was injection of 1.5 g L-arginine solution per 100 ml of NaCl 0.9% (1.5%, m/v). The injection was carried out at the pointed area of the egg in a vertical position (pointed below, blunt above). The Injection was carried out with a depth of 10 mm from the eggshell using an automatic injector. The results showed that all treatments produced the same hatchability. In-ovo injection of L-arginine has a beneficial effect on chick quality and post-hatch performance, the concentration of L-arginine solution used did not cause embryo death. In-ovo injection of 0.5% L-arginine increased hatching weight, weekly body weight, muscle mass, and myofiber size.
Numerical Investigation of Convective Heat Transfer and Fluid Flow Past a Three Square Cylinders Controlled by a Partition in Channel
Authors: Admi Youssef , Moussaoui Mohammed Amine , Mezrhab Ahmed 
Published: May 2022

This document presents a research article on the control of fluid flow around three heated square cylinders placed side by side in a 2D horizontal channel using a flat plate. The objective of this research is to examine the effect of the position, length and height of a flat plate on fluid flow and heat transfer. For this purpose, numerical simulations are performed by using the Boltzmann double relaxation time multiple network method (DMRT-LBM). The MRT-D2Q9 and MRT-D2Q5 models are used to treat the flow and temperature fields respectively. In contrast to several existing investigations in the literature in this domain which study the passive control of the flow using a horizontal or vertical plate around a single cylinder, this work presents a numerical study on the effect of the position, length and height of a flat plate (horizontal and vertical) on three heated square cylinders on the flow and temperature fields. First, the effect of the position and length of the horizontal flat plate is examined. This study shows that the implementation of a flat plate of length Lp = 4D at a position g=3 behind the central cylinder reduces the amplitude of the Von Karman Street and allows large and regular heat exchange. Thus, in the second part, the effect of the position and height of the vertical flat plate is studied. The results obtained show that the implementation of a flat plate of height h=2D at a position g=3 behind the central cylinder improves the thermal exchange between the incoming fluid and the heated cylinders. This numerical work could lead to the prediction of the cooling of the electronic components: The cooling of the obstacles is all the better when the control plate is arranged at g = 3 and its height h = 2D in the case of the vertical plate or its length Lp equal to 4D in the case where the plate is implemented horizontally
Nondiffusive variational problems with distributional and weak gradient constraints
Authors: Antil Harbir , Arndt Rafael , Rautenberg Carlos N. , Verma Deepanshu 
Published: May 2022

Abstract
In this article, we consider nondiffusive variational problems with mixed boundary conditions and (distributional and weak) gradient constraints. The upper bound in the constraint is either a function or a Borel measure, leading to the state space being a Sobolev one or the space of functions of bounded variation. We address existence and uniqueness of the model under low regularity assumptions, and rigorously identify its Fenchel pre-dual problem. The latter in some cases is posed on a nonstandard space of Borel measures with square integrable divergences. We also establish existence and uniqueness of solution to this pre-dual problem under some assumptions. We conclude the article by introducing a mixed finite-element method to solve the primal-dual system. The numerical examples illustrate the theoretical findings.
Frequency amelioration of an interconnected microgrid system
Authors: Mishra Debayani , Maharana Manoj Kumar , Nayak Anurekha 
Published: May 2022

Abstract
This article validates the operational effectiveness of a fuzzy-based multistage cascaded proportional integral derivative fractional filter (PIDFN) controller which enhances the frequency regulation of an interconnected islanded microgrid system. The effect of the ambiguous nature of renewable energy resources and test cases concerning different load variations are applied to verify the robustness of the proposed controller. The superiority of the proposed controller upon proportional-integral-derivative (PID), fractional-order PID (FOPID), and Fuzzy FOPID controller in minimizing frequency alteration has been verified through MATLAB/SIMULINK environment.
Anti-asthmatic activity of Saudi herbal composites from plants Bacopa monnieri and Euphorbia hirta on Guinea pigs
Authors: Poyil Muhammad Musthafa , Karrar Alsharif Mohammed H. , Seshadri Vidya Devanathadesikan 
Published: May 2022

Abstract
Asthma, the respiratory disorder associated with bronchial hyper-responsiveness, affected 300 million people across the globe, with a prevalence of 4.05% in Saudi Arabia and causing 61.6% of hospital emergency room annual visits. Increased side effects of conventional drugs demand the necessity for the development of natural drugs. In this study, an herbal composite from Bacopa monnieri and Euphorbia hirta was prepared and characterized by Fourier transform infrared spectroscopy (FT-IR) and gas chromatography-mass spectrometry (GC-MS) analysis. In vitro bacterial inhibition and anti-asthmatic activity were evaluated using animal models. Ethanolic herbal composite (EHC) showed significant anti-pathogenic activities. GC-MS analysis identified potential bioactive compounds and FT-IR analysis revealed functional groups corresponding to plant composites. The EHC increased the preconvulsive time against 1% histamine aerosol compared to control animals. In sensitized + EHC-treated animals, total leukocyte, eosinophil, lymphocyte, neutrophil, and monocyte counts were found to be reduced as compared to sensitized and control groups. EHC decreased malondialdehyde and bicarbonate levels denoting the reduced oxidative burden and increased the antioxidant activity by increased intracellular glutathione (GSH) level. The EHC-treated group showed decreased inflammatory cell infiltration compared to the sensitized. A significant anti-asthmatic effect was observed in the EHC-treated group (P < 0.05). Thus, herbal composites are used in the treatment of asthma and can be used as an alternative to commercially available pharmaceutical drugs.
The sound symbolism of food: the frequency of initial /PA-/ in words for (staple) food
Authors: Joo Ian 
Published: May 2022

AbstractIn different languages around the world, morphemes representing the (cooked form of) staple food or food in general tend to begin with a [+labial] phoneme followed by a [+low] phoneme (/pa-/, /ma-/, /fa-/, /wa-/, etc.). This article provides evidence for this phonological similarity by analyzing 66 sample languages’ morphemes representing the staple food within the society where each language is spoken. About a fourth of the morphemes referring to staple food begin with a [+labial] first phoneme followed by a [+low] second phoneme, which is a much higher proportion compared to another list of basic morphemes in the same 66 languages. I further argue that the motivation for this crosslinguistic tendency is the iconic association between the mouth-opening gesture and the concept of eating.
Landscape patterns in the occupancy of jaguars (Panthera onca) and their primary prey species in a disturbed region of the Selva Maya in Mexico
Authors: Friedeberg-Gutiérrez Diana B. , López-González Carlos A. , Lara-Díaz Nalleli E. , MacKenzie Darryl , Jesús-de la Cruz Alejandro , Juárez-Lopez Rugieri , Hidalgo-Mihart Mircea 
Published: May 2022

Abstract
In order to prioritize the conservation and management efforts to protect jaguars (Panthera onca), it is of utmost importance to determine their tolerance in face of human disturbances, habitat modifications and varying degrees of prey availability. We assessed the occupancy probability of jaguars and five of their most common prey species throughout a heterogeneous landscape in the Selva Maya in southern Mexico: armadillo (Dasypus novemcinctus), coati (Nasua narica), paca (Cuniculus paca), white-tailed deer (Odocoileus virginianus), and collared peccary (Dicotyles tajacu). Additionally, we projected prey and Jaguar occupancies onto a 5993 km2 landscape based on the habitat type in the area. We averaged the best prey models ranked by QAICc and found that white-tailed deer had the highest average occupancy probability of 0.72 ± 0.06 and paca the lowest with 0.14 ± 0.04. The average occupancy probability for jaguars was 0.35 ± 0.07 and the strongest predictor of jaguar occupancy was a positive effect of collared peccary occupancy. These findings support previous studies that show that predator distribution is largely influenced by their prey availability, even in the midst of degraded habitats, and underlies the essential need to incorporate protection plans for prey species in jaguar conservation strategies.
A simple and reliable assay to quantify host resistance and aggressiveness of the pathogen in the Fusarium head blight-barley pathosystem
Authors: Sakr Nachaat , Al-Attar Jalal 
Published: May 2022

Abstract
A simple and reliable method for quantifying Fusarium head blight (FHB), a widespread disease of barley, would enhance our capacity in identifying resistance sources and highly aggressive isolates. A detached head assay (DHA) was used to reliably assess: (i) resistance of two barley cultivars, Arabi Aswad (AS) and Arabi Abiad (AB) with different susceptibility to FHB and (ii) aggressiveness in a set of 16 fungal isolates of four Fusarium species. The two inoculated cultivars showed different responses in FHB incidence (DI) and severity (DS) using spray and point inoculation on detached barley heads, respectively. On AB, susceptible under several experimental conditions, inoculation with different Fusarium species resulted in significantly higher DI and DS, compared with AS, which showed Fusarium resistance. Furthermore, the values of DI and DS were significantly correlated with the previous findings generated under several experimental conditions. The use of this simple and reliable method in barley breeding programs can speed up the process of identification of sources of resistance to multiple FHB isolates. To our best knowledge, this is the first in-depth report investigating the usefulness of DHA for distinguishing susceptibility of barley plants and aggressiveness of diverse Fusarium species from a breeder's point of view.
Pacific Islands in the face of sea level rise: some reflections from an international law perspective
Authors: Giraudeau Géraldine 
Published: May 2022

Because they are at the frontline of climate change, Pacific islands’ governments and populations have early alerted on effects of sea level rise, a phenomenon that raises an urgent and existential threat in this part of the world. Among the legal questions emerging from that emergency, consequences on territorial integrity and sovereignty, State continuity, permanence of maritime limits and boundaries, as well as protection of human rights, are of crucial importance. Pacific islands’ representatives pushed for more awareness on those issues, and they are also actively participating to the construction of legal responses, particularly in the framework of the Pacific Islands Forum (PIF).
This article proposes an analysis of consequences of sea level rise from an international law perspective, focusing on Pacific States and territories. Effects of sea level rise being more present and documented in Oceania than in any other area in the world, a regional approach deserves specific attention and can usefully serve a general reflection on these challenges. The text thus aims to study impacts of sea level rise on territorial integrity and human rights at a regional scale, and to address more general prospects on development of international law.