bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Legal, Practical and Policy Dilemmas in Enforcing the Sexual Offences Act of Kenya in Relation to Consensual Adolescent Sex
Authors: Njue Festus Njeru , Materu Sosteness Francis 
Published: July 2021

AbstractThis article analyses the dilemmas encountered in enforcing the Kenyan law on defilement, focusing specifically on consensual sex between adolescents. It argues that, although punishing adults who have sex with minors is clearly justified, punishment cannot be justified in the case of minors who engage in “experimental” sex with each other. It challenges the current legal regime that allows only one minor (male) to be charged, and not the other (female), noting that neither of the mutual participants would feel vindicated by punishing the other. Similarly, it shows that charging both participants also poses legal and policy challenges. Consequently, it argues that charging adolescents for defilement when they have consensual sex with each other goes against the very policy that informed the adoption of the anti-defilement provisions. The article recommends that Kenya's legislation is reformed to create a legal regime that protects juveniles from sexual violation without victimizing them.
Neutrophil and CD4+ milk cell count related to natural incidence of mastitis in Jersey cattle
Authors: Chengolova Zlatina , Atanasova Milka , Godjevargova Tzonka 
Published: July 2021

AbstractThis Research Communication describes the relation between somatic cells and microbial content in milk from Jersey cattle. Milk samples were classified in groups: healthy, dirty and mastitic (from Staphylococcus spp., Escherichia coli, Coliforms). The somatic cells in each of those groups were analysed by two methods – flow cytometric and automatic fluorescent cell counting. Those methods were compared. Total somatic cell count (SCC), neutrophil count, and lymphocytes with cluster of differentiation 4 (CD4+cells) were determined. There was a positive relationship between microbes and somatic cells. It was noticed that the neutrophil count was generally increased together with SCC, whilst the CD4+ cell count was higher in healthy milk samples (about 8%) compared to mastitic ones (about 3%). Lower number of CD4+ cells (from 1 to 4%) was determined in samples positive for Staphylococcus spp. but with lower SCC (from 2.7 to 4.0 × 105 cells/ml). Also, the number of CD4+ cells in Staphylococcus spp.-positive samples increased (to 4.8%) together with higher SCC, something that was not observed in the other mastitic samples. Knowledge of those relations could be useful for veterinary medical tests in the initial phase of inflammation.
The importance of meaningful participation: health benefits of volunteerism for older adults with mobility-limiting disabilities
Authors: Sellon Alicia M. 
Published: July 2021

AbstractVolunteerism has been increasingly recognised as a health promotion activity for older adults. However, volunteerism has largely been the domain of those who are in good health with few to no physical limitations, and there is limited information about the experiences of older adults with disabilities. This study explores why older adults with mobility-limiting disabilities engage in volunteer work and their perceptions of the personal benefits of volunteering. Twenty older adults, from three Midwest towns in the United States of America, participated in semi-structured, in-depth, face-to-face interviews. Participants in this study identified as having serious difficulty walking or climbing stairs due to a health condition and had volunteered in the last year. Participants were selected purposively for maximum variation in terms of type of disability/impairment, race, gender and age. The constant comparative method of analysis was used to identify themes from their discussions. When asked about why they volunteer and the personal benefits of volunteering, participants discussed seeking out activities that were meaningful to them for both altruistic and more self-directed reasons. They identified a number of physical and emotional health benefits that they saw as directly and indirectly related to being able to participate in these meaningful activities. Findings from this study suggest that, for older adults with disabilities who are interested in volunteer activities, volunteerism can be a beneficial health promotion activity and a potential mechanism for increasing opportunities for meaningful inclusion and participation in their communities.
Pedagogical benefits of Chinese-American virtual exchange: A study of student perceptions
Authors: Luo Han , Yang Chunsheng 
Published: July 2021

Abstract
Despite the rapid development of virtual exchange in foreign language education, its use in the field of Chinese language education is still rather nascent. Adopting a mixed-methods research approach, this study focuses on examining the pedagogical benefits of a Chinese-American virtual exchange as mediated by students’ self-reported data. Two Chinese language classes (i.e. one at the elementary level and one at the intermediate level) at a small liberal arts college in the United States and a group of Chinese-speaking English majors at a Chinese university in Shanghai participated in the exchange. Analyses of four sources of qualitative data (i.e. WeChat group cultural discussion transcripts, Skype conversations, reflection journals, and end-of-program interviews) gave rise to four benefits of the exchange: promotion of cultural learning, improvement of Chinese language skills, enhancement of learning motivation, and establishment of a language learning community. Quantitative analyses of the end-of-semester questionnaire items show that the benefit regarding cultural learning, on average, received the highest rating, followed by community building and motivation enhancement, with improvement of Chinese skills being rated the lowest. Moreover, intermediate-level students evaluated all four benefits with higher ratings than elementary-level students. In particular, the two groups’ quantitative evaluations in terms of Chinese skills and motivation differed significantly. However, both groups enthusiastically endorsed the benefits of cultural learning and community building. The pedagogical implications of these results are also discussed.
Trans-catheter closure of large PDA in adult patients with Amplatzer device: case series
Authors: Khajali Zahra , Firouzi Ata , Ghaderian Homa , Aliramezany Maryam 
Published: July 2021

AbstractDuctus arteriosus is a physiological structure if not closed after birth, may lead to many complications. Today, trans-catheter closure of patent ductus arteriosus with Occluder devices is the preferred method. Surgical ligation is used only in certain cases such as large symptomatic patent ductus arteriosus in very small infants and premature babies; unfavourable structure of the duct or economic considerations. In this article, we described haemodynamic and morphological characteristics of five patients with large patent ductus arteriosus which were occluded with Amplatzer device.From 23 January, 2010 to 31 July, 2018, five patients referred to our clinic with large patent ductus arteriosus and pulmonary arterial hypertension for further evaluation. After assessing them with various diagnostic methods, we decided to close defect with ventricular septal defect Occluder device. Patients aged 21–44 years and one of them was male. Ductus closure was successfully done with ventricular septal defect Occluder device. Closure was successful for all of them but in one case, whose device was embolized to pulmonary artery after 24 hr and he underwent surgery.Trans-catheter closure of large patent ductus arteriosus in adult patients with pulmonary hypertension is feasible. Despite the fact that complications may occur even with the most experienced hands, the ‘double disk’ Amplatzer ventricular septal defect muscular Occluder could be advantageous in this setting.
Assessing the utility of screening electrocardiograms in paediatric patients following COVID-19
Authors: Gartenberg Ari J. , White Travus J. , Dang Khoi , Shah Maully , Paridon Stephen M. , Elias Matthew D. 
Published: July 2021

AbstractObjective:To determine the utility of screening electrocardiograms after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection among children in detecting myocarditis related to coronavirus disease 2019 (COVID-19).Study Design:A retrospective chart review was performed at a large paediatric academic institution to identify patients with prior SARS-CoV-2 infection who received a screening electrocardiogram by their primary care providers and were subsequently referred for outpatient cardiology consultation due to an abnormal electrocardiogram. The outcomes were the results from their cardiology evaluations, including testing and final diagnoses.Results:Among 46 patients, during their preceding COVID-19 illness, the majority had mild symptoms, 4 were asymptomatic, and 1 had moderate symptoms. The median length of time from positive SARS-CoV-2 test to screening electrocardiogram was 22 days, and many electrocardiogram findings that prompted cardiology consultation were normal variants in asymptomatic adolescent athletes. Patients underwent frequent additional testing at their cardiology appointments: repeat electrocardiogram (72%), echocardiogram (59%), Holter monitor (11%), exercise stress test (7%), and cardiac MRI (2%). Five patients were incidentally diagnosed with CHD or structural cardiac abnormalities, and three patients had conduction abnormalities (pre-mature atrial contractions, pre-mature ventricular contractions, borderline prolonged QTc), although potentially incidental to COVID-19. No patients were diagnosed with myocarditis or ventricular dysfunction.Conclusion:In a small cohort of children with prior COVID-19, who were primarily either asymptomatic or mildly symptomatic, subsequent screening electrocardiograms identified various potential abnormalities prompting cardiology consultation, but no patient was diagnosed with myocarditis. Larger multi-centre studies are necessary to confirm these results and to evaluate those with more severe disease.
Terrorist campaigns and the growth of the Muslim population: a reply
Authors: Egger Clara , Magni-Berton Raul 
Published: July 2021

AbstractA recently published paper in this journal (Choi, 2021) establishes a statistical link between, on the one hand, Islamist terrorist campaigns – including terrorist attacks and online propaganda – and, on the other the growth of the Muslim population. The author explains this result by stating that successful campaigns lead some individuals to convert to Islam. In this commentary, we intend to reply to this article by focusing on the impact of terrorist attacks on religious conversion. We first show that Choi's results suffer from theoretical flaws – a failure to comprehensively unpack the link between violence and conversion – and methodological shortcomings – a focus on all terrorist groups over a period where Islamist attacks were rare. This leads us to replicate Choi's analysis by distinguishing Islamist and non-Islamist terror attacks on a more adequate timeframe. By doing so, we no longer find empirical support for the relationship between terror attacks and the growth of the Muslim population. However, our analyses suggest that such a hypothesis may hold but only in contexts where the level and intensity of political violence are high.
CONDITIONAL LOGIC IS COMPLETE FOR CONVEXITY IN THE PLANE
Authors: MARTI JOHANNES 
Published: July 2021

AbstractWe prove completeness of preferential conditional logic with respect to convexity over finite sets of points in the Euclidean plane. A conditional is defined to be true in a finite set of points if all extreme points of the set interpreting the antecedent satisfy the consequent. Equivalently, a conditional is true if the antecedent is contained in the convex hull of the points that satisfy both the antecedent and consequent. Our result is then that every consistent formula without nested conditionals is satisfiable in a model based on a finite set of points in the plane. The proof relies on a result by Richter and Rogers showing that every finite abstract convex geometry can be represented by convex polygons in the plane.
Seismic Attenuation and S‐Velocity Structures in Beneath Central America Using 1‐D Full‐Waveform Inversion
Authors: Borgeaud Anselme F. E. , Deschamps Frédéric 
Published: July 2021

AbstractWe use one‐dimensional full‐waveform inversion to simultaneously infer the S‐velocity () and anelastic () structures of the lowermost 480 km of the mantle in 11 contiguous corridors located beneath Northern South America and Central America. Previous studies in this region have reported the presence of slabs at the core‐mantle boundary (CMB) and large variations in the depth of the discontinuity, suggesting local temperature variations. We use transverse component waveform data cut around the ScS phase, including the Scd phase due to the discontinuity, from 31 events beneath South America recorded at USArray stations. The minimum period used in this study is 8 s, allowing us to constrain the fine‐scale structure of the region and the depth of the discontinuity. We correct the data for the effect of amplitude focusing due to lateral velocity anomalies (i.e., out‐of‐plane focusing effect) in on the inferred structure using three‐dimensional waveform calculations. We show that, in the explored region, corrections for out‐of‐plane focusing effects are necessary to obtain models that have a reasonable interpretation in terms of temperature and fraction of post‐perovskite (pPv). Our final models show regions with high , high , and an elevated discontinuity, surrounding a low‐velocity corridor with lower and a depressed discontinuity that can be explained by local temperature variations. However, differences between temperature perturbations inferred from and suggest lateral variations in the fraction of pPv.
Spatial Persistence of Water Chemistry Patterns Across Flow Conditions in a Mesoscale Agricultural Catchment
Authors: Gu S. , Casquin A. , Dupas R. , Abbott B. W. , Petitjean P. , Durand P. , Gruau G. 
Published: July 2021

AbstractProtecting water quality at catchment scales is complicated by the high spatiotemporal variability in water chemistry. Consequently, determining pollutant sources requires costly monitoring strategies to diagnose causes and guide management solutions. However, recent studies have shown that spatial patterns in water chemistry can be persistent at catchment scales, potentially allowing identification of pollution sources and sinks with just a few sampling campaigns. Here, we tested a new method to quantify spatial persistence (SP) of water chemistry patterns with data from synoptic samplings in 22 headwater subcatchments within a 375 km2 catchment in western France (March 2018 to July 2019). This new method to quantify SP reduces dependence on long‐term metrics such as flow‐weighted concentrations, which are usually uncertain or unavailable. We applied the method to 16 ecologically relevant water quality parameters, including soluble reactive phosphorus, nitrate, and dissolved organic carbon. The results showed an average SP of 0.68 among parameters during the study period. For most parameters, SP was higher during the high‐flow winter period but lower and more variable during the low‐flow summer period. We found that the SP ultimately depended on the ratio between the temporal and spatial coefficients of variation (variance explained: 70%) rather than the temporal synchrony among subcatchments (variance explained: 4%). These results demonstrate that in these temperate catchments, synoptic sampling during the high‐flow winter period allows efficient identification of source and sink subcatchments, while more frequent samplings are needed to characterize ecological conditions at low flow.
Possibility of Stabilizing the Greenland Ice Sheet
Authors: Wang Xiuquan , Fenech Adam , Farooque Aitazaz A. 
Published: July 2021

AbstractRecent acceleration in the retreat of the Greenland ice sheet under a warming climate has caused unprecedented challenges and threats to coastal communities due to the rising sea level and increasing storm surges. This raises a critical question from a climate mitigation perspective: Would there still be a chance to stabilize the Greenland ice sheet if the carbon reduction goals of the Paris Agreement could be met? Here, we show that there is indeed a possibility for stabilizing the Greenland ice sheet with the low‐emission scenario of RCP2.6. In particular, RCP2.6 would potentially limit the warming in Greenland below 1°C within next 30 years and constrain its loss of ice sheet coverage below 10%. After 2050, the annual mean temperature in Greenland is likely to be stabilized and no further loss is expected to its ice sheet. However, the effective window for this chance will be closing after 2020. If no effective carbon reduction policies are being taken now, we are very likely to enter a continuous warming pathway and lose the chance of stabilizing the Greenland ice sheet.
Kronian Magnetospheric Reconnection Statistics Across Cassini’s Lifetime
Authors: Garton T. M. , Jackman C. M. , Smith A. W. 
Published: July 2021

AbstractMagnetic reconnection is a fundamental physical process in planetary magnetospheres, in which plasma can be exchanged between the solar wind and a planetary magnetosphere, and material can be disconnected and ultimately lost from a magnetosphere. Magnetic reconnection in a planetary magnetotail can result in the release of plasmoids downtail and dipolarizations planetward of an x‐line. The signatures of these products include characteristic deflections in the north‐south component of the magnetic field which can be detected by in‐situ spacecraft. These signatures have been identified by eye, semi‐automated algorithms, and recently machine learning (ML) methods. Here, we apply statistical analysis to the most thorough catalog of Kronian magnetospheric reconnection signatures created through ML methods to improve understanding of magnetospheric evolution. This research concludes that no quasi‐steady position of the magnetotail x‐line exists within 70 . This research introduces prediction equations to estimate the distribution of duration of plasmoid passage over the spacecraft (, bin width = 1 min) and north‐south field deflection (, bin width = 0.25 nT) expected to be identified by an orbiting spacecraft across a year of observations. Furthermore, this research finds a local time asymmetry for reconnection identifications, with a preference for dusk‐side over dawn‐side. This may indicate a preference for Vasyliunas style reconnection over Dungey style for Saturn. Finally, through these distributions, the reconnection rate of Saturn’s magnetotail can be estimated as 3.22 reconnection events per day, with a resulting maximum mass loss from plasmoids of 44.87 kg on average, which is comparable with the magnetospheric mass loading from Enceladus (8–250 kg ).
An increase in VGF expression through a rapid, transcription-independent, autofeedback mechanism improves cognitive function
Authors: Lin Wei-Jye , Zhao Yan , Li Zhe , Zheng Shuyu , Zou Jin-lin , Warren Noël A. , Bali Purva , Wu Jingru , Xing Mengdan , Jiang Cheng , Tang Yamei , Salton Stephen R. , Ye Xiaojing 
Published: July 2021

AbstractThe release of neuropeptides from dense core vesicles (DCVs) modulates neuronal activity and plays a critical role in cognitive function and emotion. The granin family is considered a master regulator of DCV biogenesis and the release of DCV cargo molecules. The expression of the VGF protein (nonacronymic), a secreted neuropeptide precursor that also belongs to the extended granin family, has been previously shown to be induced in the brain by hippocampus-dependent learning, and its downregulation is mechanistically linked to neurodegenerative diseases such as Alzheimer’s disease and other mood disorders. Currently, whether changes in translational efficiency of Vgf and other granin mRNAs may be associated and regulated with learning associated neural activity remains largely unknown. Here, we show that either contextual fear memory training or the administration of TLQP-62, a peptide derived from the C-terminal region of the VGF precursor, acutely increases the translation of VGF and other granin proteins, such as CgB and Scg2, via an mTOR-dependent signaling pathway in the absence of measurable increases in mRNA expression. Luciferase-based reporter assays confirmed that the 3′-untranslated region (3′UTR) of the Vgf mRNA represses VGF translation. Consistently, the truncation of the endogenous Vgf mRNA 3′UTR results in substantial increases in VGF protein expression both in cultured primary neurons and in brain tissues from knock in mice expressing a 3′UTR-truncation mutant encoded by the modified Vgf gene. Importantly, Vgf 3′UTR-truncated mice exhibit enhanced memory performance and reduced anxiety- and depression-like behaviors. Our results therefore reveal a rapid, transcription-independent induction of VGF and other granin proteins after learning that are triggered by the VGF-derived peptide TLQP-62. Our findings suggest that the rapid, positive feedforward increase in the synthesis of granin family proteins might be a general mechanism to replenish DCV cargo molecules that have been released in response to neuronal activation and is crucial for memory function and mood stability.
A momentary assessment study on emotional and biological stress in adult males and females with autism spectrum disorder
Authors: van der Linden Kim , Simons Claudia , Viechtbauer Wolfgang , Ottenheijm Emmy , van Amelsvoort Thérèse , Marcelis Machteld 
Published: July 2021

AbstractProspective momentary psychological and biological measures of real-time daily life stress experiences have been examined in several psychiatric disorders, but not in adults with an autism spectrum disorder (ASD). The current electronic self-monitoring study examined associations between momentary daily life stressors and (i) negative affect (NA; emotional stress reactivity) and (ii) cortisol levels (biological stress reactivity) in males and females with ASD (N = 50) and without ASD (N = 51). The Experience Sampling Method, including saliva sampling, was used to measure three types of daily life stress (activity-related, event-related, and social stress), NA, and cortisol. Multilevel regression analyses demonstrated significant interactions between group and stress (i.e., activity-related and event-related stress) in the model of NA, indicating stronger emotional stress reactivity in the ASD than in the control group. In the model of cortisol, none of the group × stress interactions were significant. Male/female sex had no moderating effect on either emotional or biological stress reactivity. In conclusion, adults with ASD showed a stronger emotional stress (but not cortisol) reactivity in response to unpleasant daily life events and activities. The findings highlight the feasibility of electronic self-monitoring in individuals with ASD, which may contribute to the development of more personalized stress-management approaches.