bluuebunny/crossref_metadata_2025_split huggingface dataset:
A review on the sealing structure and materials of fuel-cell stacks
Authors: Zhao Jinghui , Guo Huijin , Xing Yuchen , Ping Shaobo , Lin Weikang , Yang Yanbo , Wang Zixi , Ma Tiancai 
Published: February 2023

AbstractProton-exchange-membrane fuel cells (PEMFCs) have the characteristics of zero emissions, a low operating temperature and high power density, and have great potential in improving energy-utilization efficiency. However, fuel cells are still quite expensive as a result of the cost of key components, including the membranes, catalysts and bipolar plates of PEMFCs. As a result of the cost and importance of these items, most researchers have focused on improving the lifetime and performance of fuel-cell stacks in recent years. In contrast, seals, sealants and adhesives play a more mundane role in the overall performance of a fuel cell, but failure of these materials can lead to reduced system efficiency, system failure and even safety issues. Little attention has been paid to the performance and durability of these products but as other fuel-cell components improve, these seals are becoming an even more critical link in the long-term performance of fuel cells. This article highlights the importance and background of fuel-cell seals. The latest research progress on the mechanical properties and structural optimization of different sealing materials is reviewed.
Should we Target Complete Endoscopic Healing in Patients with Acute Severe Ulcerative Colitis?
Authors: Laharie David , Mary Jean-Yves 
Published: February 2023

Abstract

Background
Achieving endoscopic healing is a recommended target in ulcerative colitis [UC]. However, little is known about desirable goals in patients with acute severe UC [ASUC]. Taking advantage of the long-term follow-up of clinical trial patients with steroid-refractory ASUC, the present analysis aimed to quantify the observed association between the Mayo endoscopic sub-score [MES], 0 or 1, at clinical trial end and patients’ long-term disease outcome.

Methods
Patients in the prospective CYSIF clinical trial were included in the present analysis if they had achieved steroid-free clinical remission with an MES of 0 or 1 at the end of the trial, at day 98. Events during long-term follow-up had been retrospectively collected. The primary endpoint for this complementary analysis was the occurrence of an event, death or disease relapse [defined by recurrence of symptoms with need for a new systemic treatment or colectomy].

Results
Forty-four patients were included in the present analysis. When censoring follow-up at 5 years, six and nine events were observed among 26 and 18 patients having an MES of 0 and 1, respectively. Survival without disease relapse at 1, 2 and 5 years was respectively 88 ± 6, 81 ± 8 and 77 ± 8% in patients with MES of 0, and 72 ± 11, 53 ± 12 and 46 ± 12% in those with MES of 1 [hazard ratio: 2.8; 95% confidence interval: 1.0–8.0; p = 0.042].

Conclusion
In a cohort of patients admitted for ASUC in whom clinical and endoscopic healing has been achieved with a second-line medical therapy, better survival without disease relapse was observed with complete endoscopic healing.
A mystery-shopping study to test enforcement of minimum legal purchasing age in Lithuania in 2022
Authors: Miščikienė Laura , Tran Alexander , Petkevičienė Janina , Rehm Jürgen , Vaitkevičiūtė Justina , Galkus Lukas , Lange Shannon , Štelemėkas Mindaugas 
Published: February 2023

AbstractBackgroundAccording to the Lithuanian law to prevent the sale of alcohol to customers below the legal minimum purchasing age of 20 years, young adults below 25 years must be asked to show an age-verification document when purchasing alcohol. The aim of this study was to assess whether off-premise outlets comply with the law.MethodsIn 2022, mystery-shopping study was carried out in three consecutive phases: (i) in a representative sample (n = 239) of off-premise alcohol outlets covering all Lithuanian district centres, (ii) after lifting the requirement to wear a mask and (iii) after warning the outlets that a mystery-shopping study was ongoing. Phases 2 and 3 were held in two cities. The mystery shopping involved attempts by young, but legally eligible customers to purchase alcohol. Across the three study phases, we compared compliance with the law by measuring overall success of purchase attempts and included situational characteristics (working day or weekend), time of day and number of customers in line as an additional predictor.ResultsOut of 239 attempts to purchase alcohol from off-premise outlets in the main phase of the study, 107 (or 44.8%) were considered to be successful (visits in which staff were willing to sell alcohol). There was a significantly higher chance of success to purchase alcohol with no ID request if a mystery shopper was the only customer in a queue and on weekends.ConclusionsThe results indicate an insufficient level of age-verification control in Lithuania, and that additional action is needed to increase compliance.
Use of virtual reality technology in chainsaw operations, education and training
Authors: Capecchi Irene , Neri Francesco , Borghini Tommaso , Bernetti Iacopo 
Published: February 2023

AbstractWood harvesting operations represent one of the industrial sectors with the highest risk of accidents at work. In semi-mechanized logging operations, the great majority of accidents generally occur using chainsaws during tree felling. Unfortunately, these situations frequently cause serious injuries and even the deaths of workers. In numerous cases, the accidents occurred to people who were badly trained and inexperienced, with a short employment history. One solution to reduce these harmful events is to support workers employed in this sector with training applications. This paper presents a description of a research and training programme for operating with chainsaws in tree felling operations using a Virtual Reality (VR) application called ForestVRoom. This innovative education method was compared with the traditional theoretical lesson based on a slide show. The results of the training were verified through a statistical analysis of questionnaires administered to a sample of 45 students in undergraduate and master’s degree programmes at the School of Agriculture and Forestry at the University of Florence. We have shown that the combination of traditional didactics and symmetrical collaborative VR leads to an increase in knowledge and especially in the ability to understand situations in a real forest site. VR is a useful teaching tool that can complement conventional training methods because of its potential to provide an immersive and attractive experience that facilitates learning and recognition of situations in forest sites.
‘Surrounding yourself with beauty’: exploring the health promotion potential of a rural garden appreciation group
Authors: Symes Leith , Hadgraft Nyssa , Marsh Pauline , Nuttman Sonia , Kingsley Jonathan 
Published: February 2023

Summary
Gardening has the potential to enhance health and well-being, through increased physical activity and social connectedness. However, while much is known about the benefits of garden activities, less is known about the potential health implications of more passive forms of engagement with gardens, for example, viewing gardens. In addition, much garden research is undertaken in urban settings, leaving little known about potential health impacts for rural populations. The present study explored these research gaps by gaining an understanding of the experiences and perspectives of members of a gardening appreciation group in rural Australia: The Colac Horticultural and Marvellous Property Appreciation Society (CHAMPAS). A phenomenological, qualitative methodology was applied, using semi-structured interviews for data collection. Eleven participants were selected using purposive and snowball sampling and the data were analysed by applying interpretive, reflexive thematic analysis. Four main themes and supporting sub-themes were generated. The four main themes were: (i) motivations for maintaining participation in CHAMPAS; (ii) social connections and friendships, formed from membership; (iii) sense of community and structure of CHAMPAS and (iv) the perceived health and well-being benefits of continued involvement in this group. This study found that members perceived health and well-being benefits stemmed from CHAMPAS facilitation of social connectedness, function as a community group and a way for members to share a love for home gardening. This study provides insights into the perceived and potential health-promoting effects of garden appreciation groups for rural populations.
The effectiveness of an online sexuality education module in promoting sexual knowledge and attitude change: a cluster randomized controlled trial
Authors: Chen Minne , Zimmer Catherine , Huang Sizhe , Tian Rui , Yang Boya , Li Meibao 
Published: February 2023

AbstractThis study assesses the ability of an online sexuality education (OSE) module (‘You and Me’) to enhance sexual and reproductive health (SRH) knowledge and attitudes among 10th-grade vocational high school students in China. We conducted a cluster randomized controlled trial, randomizing 29 vocational high schools to (i) receiving the module (intervention) or (ii) not receiving the module (control). Students completed a baseline questionnaire, then completed the module within 8 weeks and then completed a follow-up questionnaire within the following 2 weeks. We assessed the differences in intervention effects using hierarchical linear modeling. No significant differences between intervention and control groups were found for knowledge and attitude scores at baseline among the 2985 students included in the analyses. For the intervention group at follow-up, we observed significant improvements in SRH knowledge scores of approximately 20% for boys and girls although girls responded to the module with larger knowledge gains than boys. At follow-up, intervention group students also had higher SRH attitude scores toward views that are more contemporary than the control group. In addition, girls held more contemporary attitudes than boys. The comprehensive OSE module assessed is effective in improving SRH knowledge, and attitude among Chinese vocational high school students after the module is completed.
Curriculum reform and trainees’ perception of the pharmacy educational environment: a modified DREEM study
Authors: Yeoh Ting Ting , Kumwenda Ben , Chew Lita 
Published: February 2023

AbstractObjectivesAn undergraduate pharmacy curriculum reform was undertaken to meet the future healthcare demands of the people in Singapore. Understanding how educational reforms affect the learners’ perceptions of the learning environment is important for quality assurance. The primary aim of this study was to investigate how pharmacy trainees perceive their educational environment before and after curriculum reform. The secondary aim was to evaluate the strengths and areas for improvement of the educational environment in the new curriculum.MethodsThis was a retrospective cohort study of pharmacy trainees in Singapore. A modified version of the Dundee Ready Educational Environment Measure (mDREEM) was used to assess the pharmacy educational environment. Univariate analysis was used to compare the responses of trainees from the old and new curricula.Key findingsThe sample comprised 523 (93.7%) responses from the old and 677 (94.6%) from the new curriculum. The global mean scores for the mDREEM survey in the old and new curriculums were 150.4 and 156.2, respectively (P &lt; 0.001). These results indicate that there was an increase in satisfaction with the new educational environment. In the new curriculum, the perceived educational environment varied across different pharmacy settings, and trainees rated their educational environment after graduation lower than that during their undergraduate training.ConclusionThe findings demonstrate that curricular reforms can alter trainees’ perception of their educational environment. In our subgroup analyses, trainees’ perceptions of their educational environment changed as they progressed from the undergraduate to the postgraduate training phase. Further work is needed to explore the cause-and-effect relationships between curriculum design and implementation and the resulting perceived educational environment.
The Dislocation of LGBT Politics: Pride, Globalization, and Geo-Temporality in Uganda and Serbia
Authors: Slootmaeckers Koen , Bosia Michael J 
Published: February 2023

AbstractScholars consider the translatability and efficacy of “western” LGBT politics as they diffuse, but pay little attention to the role of its histories and cultures as geo-temporal phenomena. Focusing on Pride events, this article demonstrates how such oversights inhibit a full account of the widely diverse impacts of similar actions in different places. We explore the ways in which Pride events, as a mode of activism, go global and integrate in vastly different contexts: Serbia and Uganda. Paying particular attention to acts of violence and the instrumentalization of Pride as geopolitical, we argue that divergent outcomes connect to the diffusion of Pride as creative of geo-temporal dislocations of politics and history. Incorporating the concept of extraversion, we demonstrate that the intertwining of the domestic and international facilitates the transformation of politics in terms of foreseen outcomes and unintended consequences. Overall, we propose a framework that advances an understanding of homophobic and homophilic politics as instrumentalizations of geo-temporal dislocations that underpin the global fight for LGBT rights. As a challenge to the progress narrative nearly intrinsic to western international relations, this approach is useful to explore processes that shape other types of transnational politics, such as democracy, climate change, and peace movements.
What Relations Matter?
Authors: Klasche Benjamin , Poopuu Birgit 
Published: February 2023

AbstractWhat relations matter? This question sits at the heart of this article and addresses in a more thoroughgoing way the methodological and ethico-political problems that some relational thinkers have debated. We are interested in deep relationalism and the methodological problem of delineating which relations matter in a reality defined by an ever-unfolding web of relations. By acknowledging the relationality of critical international relations (IR) theories, this methodological puzzle is explored by recognizing the situatedness of relations that are being analyzed. Moreover, this helps us to start a conversation on the ethical and political dimensions of deeply relational approaches. By placing the ontological work of deep relationalism in dialogue with the epistemological and ethico-political aspects of critical theory, we are putting forth an account of critical relationalism. Furthermore, we are not only arguing for a critical approach to relationalism but also adding to one of the main methodological debates in relationalism that asks us to carefully consider which relations matter (for our analysis) and how we should access them? Finally, this piece advocates for more plural grounds for relationalism in IR to critically reflect on which relations our theoretical approaches can take us to and why this matters.
Allograft reconstruction of acetabular labrum has comparable outcomes to labral refixation
Authors: Abdelaal Mohammad S , Sutton Ryan M , Atillasoy Cenk , Parvizi Javad 
Published: February 2023

ABSTRACT
The acetabular labrum plays an important role in hip stability, intra-articular fluid pressurization and force distribution. For irreparable labral pathology, labral reconstruction is an increasingly adopted technique shown to decrease hip pain and improve function. We evaluated survivorship and clinical outcomes of allograft labral reconstruction using the mini-open anterior surgical approach. Twelve patients who underwent labral reconstruction using a semitendinosus tendon allograft (reconstruction group) were matched 1:3 based on age, gender, body mass index, year of surgery, preoperative Tönnis grade, previous hip surgery, residual hip pathology and extent of acetabular chondral lesion to a control group of 36 patients who underwent direct labral repair with anchors (refixation group). At a minimum follow-up of 2 years, patient-reported outcomes, radiological findings and failure rates were compared. The average age was 31.3 years (±13.6) for reconstruction and 34.7 (±10.2) for refixation. Both groups had similar preoperative symptomatic periods (P = 0.3), prevalence of residual hip pathology (P = 1.0) and prevalence of prior hip surgeries (P = 1.0). both groups had a significant improvement of modified Harris Hip scores and 36-Item Short-Form Health Survey physical scores. There was no statistically significant difference in conversion rates to total hip arthroplasty (25% versus 8.3%, P = 0.2); however, time to conversion was significantly longer in the reconstruction group (3.58 years ±1.04) compared to the refixation group (1.20 years± 0.93; P = 0.04). In conclusion, at a minimum of 2 years of follow-up, mini-open labrum reconstruction for severe insufficiency of acetabular labrum demonstrated comparable improvements in functional outcomes and significantly longer survivorship compared to labral refixation.
International politics and oil trade: evidence from Russian oil exports
Authors: Mityakov Sergey , Portnykh Margarita , Tsui Kevin K 
Published: February 2023

Abstract
Oil is often considered a “political” good affected by the changes in international political relations. Using a novel dataset on Russian oil-exporting companies over 1999–2011, we find that a worsening in political relations between Russia and an oil-importing country results in a considerable reduction in oil shipments by Russian oil exporting firms into that country, the effect being stronger for state-owned firms. Using leadership changes in oil importing countries as exogenous shocks to political relations, we show that this relationship is causal. However, total exports revenue of Russian oil exporting firms is not affected much, as they seem to be able to recover losses incurred in one market by increasing their sales in other markets. At the same time, the countries importing oil from Russia (especially the ones heavily dependent on Russian oil) see their total oil and energy imports decline.
A new species of small-eared shrew (Soricidae, Cryptotis) from El Triunfo Biosphere Reserve, Chiapas, Mexico
Authors: Guevara Lázaro 
Published: February 2023

Abstract
The Cryptotis goodwini species group of small-eared shrews (Eulipotyphla, Soricidae) includes at least 12 species discontinuously distributed in the cloud forests from southern Mexico to Honduras. Its taxonomy is still under study, with several species described only in the last decade. Previous genetic studies have highlighted that a population from El Triunfo Biosphere Reserve in Chiapas, Mexico, previously assigned to C. goodwini, is evolutionarily divergent from the other known species. However, the available specimens from this region have not been examined rigorously. Herein, I use morphological and biogeographic analyses to evaluate the taxonomic status of this population. The results confirm that it is an independent lineage, which I describe here as a new species endemic to Mexico. Overall, this is the largest shrew within the C. goodwini group. Its morphological and genetic distinction is probably due to long-term geographic isolation in the mountains of El Triunfo. I present what is now the first and only record of C. goodwini (sensu stricto) for Mexico. Finally, I identify some priority regions to direct field surveys on the C. goodwini species group to better understand its richness and distribution.
Prostate cancer grade migration and facility-level treatment trends for grade group 1 disease
Authors: Borregales Leonardo D , Tzeng Michael , Ramaswamy Ashwin , Gu Xiangmei , Davuluri Meenakshi , Nagar Himanshu , Hu Jim C 
Published: February 2023

Abstract
Overdiagnosis and overtreatment of low-grade prostate cancer (PCa) reflect poor quality of care and prompted changes to guidelines over the past decade. We used the National Cancer Database to characterize Gleason Grade Group (GG)1 PCa diagnosis trends and assess facility-level treatment variability. Between 2010 and 2019, GG1 PCa incidence had a clinically and statistically significant decline, from 45% to 25% at biopsy and from 33% to 9.8% at radical prostatectomy (RP) pathology. Similarly, active surveillance (AS) uptake significantly increased to 49% and 62% among nonacademic and academic sites, respectively. Decreasing rates of definitive therapies were identified: among academic sites, RP decreased from 61.1% to 25.3% and radiation therapy (RT) from 25.2% to 12%, whereas among nonacademic sites, RP decreased from 53.6% to 28% and RT from 37.8% to 21.9% (Ptrend &lt; .001). Declines in the diagnosis and treatment of low-grade disease demonstrate an encouraging shift in PCa epidemiology. However, heterogeneity in AS utilization remains and reflects opportunities for improvement.
Differential immunophenotypes of neuronal cytoplasmic inclusions in the dentate gyrus of multiple system atrophy and their association with clinicopathological features
Authors: Homma Taku , Mochizuki Yoko , Tobisawa Shinsuke , Komori Takashi , Takahashi Kazushi 
Published: February 2023

Abstract
Although hippocampal pathologies of multiple system atrophy (MSA) and their association with dementia have been reported, no studies have reported clinicopathological differences among MSA patients with and without neuronal cytoplasmic inclusions (NCIs) in the dentate gyrus (dntNCIs). We investigated hippocampal NCI pathology in 18 MSA patient autopsies, focusing on phosphorylated α-synuclein (pAS)- and phosphorylated tau (pT)-positive dntNCIs. There were 8 MSA patients without and 10 with dntNCIs. The latter group was subclassified by immunophenotype: those with pAS-positive dntNCIs (pAS-dntNCI subtype), those with pT-positive dntNCIs (pT-dntNCI subtype), and those with both types of dntNCIs. MSA patients with dntNCIs survived longer with prolonged tracheostomy and had dementia more frequently than those without dntNCIs. The brain weights of patients with dntNCIs were lower than those without dntNCIs. The presence of dementia was similar among the dntNCI subtypes. The pAS-dntNCI subtype was associated with longer survival and smaller brain weights; the pT-dntNCI subtype exhibited more frequent tau pathologies than the pAS-dntNCI subtype. Thus, MSA with dntNCIs is a possible pathological subtype of longer survivors that correlates with longer disease duration, prolonged tracheostomy, and high frequency of dementia. Understanding clinicopathological differences in MSA patients with and without dntNCIs may lead to improved personalized management strategies.