bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of Block form on the Shear Behaviour of Soft Soil–Rock Mixtures by 3D Block Modelling Approaches
Authors: Zhang Han , Boldini Daniela , Wang Lehua , Deng Huafeng , Liu Chang 
Published: February 2022

AbstractThe influence of block forms on the shear behaviour of soil–rock mixtures with soft blocks (soft S–RMs) can be efficiently investigated by the discrete element method (DEM) on the basis of accurate 3D models accounting for the block breakage. This paper proposes a novel modelling approach, based on the spherical harmonics series, for the generation of 3D block geometries with different forms but same convexity and angularity. An already existing non-overlapping modelling approach was improved, characterized by a reduced computational cost, for the set-up of 3D block DEM models accounting for the block breakage. A number of soft S–RM DEM samples, subjected to numerical direct shear tests, were generated to analyze the influence of block forms and volumetric block proportionVBPon the mesoscopic and macroscopic behaviours. The results showed that the breakage degree is maximum for the spheroidal blocks, followed by the oblate, prolate and blade ones, due to the combined influence of the block frictional sliding and rotation. The shear strength of soft S–RMs is mainly controlled by the block interlocking and breakage, being maximum in the case of spheroidal block samples when the applied normal stress is low and in the case of prolate and blade ones for a high normal stress. It was found that a nonlinear Mohr–Coulomb criterion can provide a good description of the shear strength envelope of soft S–RMs. Soft S–RMs are characterized by a higher friction angle if composed by spheroidal and prolate blocks when theVBPis 40%, due to their elevated block interlocking, and in the case of prolate and blade blocks when theVBPis 60% at the higher normal stress, due to their lower block breakage degree.
Decades-long phylogeographic issues: complex historical processes and ecological factors on genetic structure of alpine plants in the Japanese Archipelago
Authors: Ikeda Hajime 
Published: February 2022

AbstractMountain regions are important places for biodiversity, where organisms could persist throughout prolonged periods and accumulate genetic divergence as well as promote speciation. Roles of mountains for biodiversity have been exclusively discussed in regions that have specifically diverse species or covered with ice-sheets during the Pleistocene glacial periods, whereas the importance of mountainous regions in East Asia has been less disputed. High mountains in the Japanese Archipelago, located at the eastern edge of the Eurasia continent, have one of southernmost populations of alpine and arctic-alpine plants that are also distributed in the northern Pacific and/or the circumarctic regions. Phylogeographic studies on the Japanese alpine plants have excluded their possible ephemeral occurrence during the current warm period, and rather, suggest persistence of alpine plants throughout several cycles of climate changes in the Pleistocene on high mountains in central Honshu, the main island of the Japanese Archipelago. In this review, I look through decade long phylogeographic studies and show complicated patterns of range dynamics of Japanese alpine plants. In addition, I note recent findings of genetic relationships of Japanese populations of alpine and/or arctic-alpine plants with those in northern regions and their possible ecological divergence in the Japanese Archipelago. Taken together, I provide several issues for understanding historical processes that established distribution of alpine plants following climate changes as well as their diversification and propose importance of Japanese populations of alpine plants on biodiversity in alpine communities across broader range, especially in the northern Pacific region.
Adherence, Sexual Behavior and Sexually Transmitted Infections in a New Zealand Prospective PrEP Cohort: 12 Months Follow-up and Ethnic Disparities
Authors: Saxton Peter J. W. , Azariah Sunita , Cavadino Alana , Forster Rose F. , Jenkins Renee , Werder Suzanne F. , Southey Kim , Rich Joseph G. 
Published: February 2022

AbstractInequities in pre-exposure prophylaxis (PrEP) experiences will impede HIV epidemic elimination among gay and bisexual men (GBM). Ethnicity is a strong marker of inequity in the United States, but evidence from other countries is lacking. We investigated experiences on-PrEP to 12 months follow-up in a prospective cohort of 150 GBM in Auckland, New Zealand with an equity quota of 50% non-Europeans. Retention at 12 months was 85.9%, lower among Māori/Pacific (75.6%) than non-Māori/Pacific participants (90.1%). Missed pills increased over time and were higher among Māori/Pacific. PrEP breaks increased, by 12 months 35.7% of Māori/Pacific and 15.7% of non-Māori/Pacific participants had done so. Condomless receptive anal intercourse partners were stable over time. STIs were common but chlamydia declined; 12-month incidence was 8.7% for syphilis, 36.0% gonorrhoea, 46.0% chlamydia, 44.7% rectal STI, 64.0% any STI. Structural interventions and delivery innovations are needed to ensure ethnic minority GBM gain equal benefit from PrEP.Clinical trial numberACTRN12616001387415.
Distribution and potential impacts of non-native Chinese pond mussels Sinanodonta woodiana (Lea, 1834) in Bavaria, Germany
Authors: Dobler Andreas H. , Hoos Philipp , Geist Juergen 
Published: February 2022

AbstractThe Chinese pond mussel, Sinanodonta woodiana, is non-native to European freshwater systems. Originating from Asia, it was brought to Europe in the 1970s and is now spreading across many countries. Management of the species is currently limited by a lack of information on the actual distribution and population characterisation of S. woodiana as well as on the co-occurrence of native mussels potentially resulting in competition. For this paper, we examined nine water systems in the German federal state of Bavaria with randomly observed and anecdotally reported S. woodiana occurrences. We recorded the density and biomass of S. woodiana and of the co-existing mussel species as well as the habitat characteristics. We found S. woodiana in eight water systems, co-existing with other native and invasive mussel species in seven of them. The distribution of S. woodiana was geographically widespread throughout Bavaria, indicating great invasion potential. In one fish pond, S. woodiana was the only mussel species occurring with the highest mean biomass (1286.0 ± 1067.7 g m−2) and with the biggest specimen (25.0 cm and 1616.0 g). The wide range of habitat variables matched the expectation of a wide ecological niche for the species. This study provides evidence that S. woodiana has already become established in many water systems in Bavaria, with fish ponds and fisheries management practises being a likely vector. To counteract this species and to conserve native mussel species, it is important to implement effective legislation, to take measures to eradicate this invasive mussel transnationally, and to raise public awareness.
Popular extreme sea level metrics can better communicate impacts
Authors: Rasmussen D. J. , Kulp Scott , Kopp Robert E. , Oppenheimer Michael , Strauss Benjamin H. 
Published: February 2022

AbstractEstimates of changes in the frequency or height of contemporary extreme sea levels (ESLs) under various climate change scenarios are often used by climate and sea level scientists to help communicate the physical basis for societal concern regarding sea level rise. Changes in ESLs (i.e., the hazard) are often represented using various metrics and indicators that, when anchored to salient impacts on human systems and the natural environment, provide useful information to policy makers, stakeholders, and the general public. While changes in hazards are often anchored to impacts at local scales, aggregate global summary metrics generally lack the context of local exposure and vulnerability that facilitates translating hazards into impacts. Contextualizing changes in hazards is also needed when communicating the timing of when projected ESL frequencies cross critical thresholds, such as the year in which ESLs higher than the design height benchmark of protective infrastructure (e.g., the 100-year water level) are expected to occur within the lifetime of that infrastructure. We present specific examples demonstrating the need for such contextualization using a simple flood exposure model, local sea level rise projections, and population exposure estimates for 414 global cities. We suggest regional and global climate assessment reports integrate global, regional, and local perspectives on coastal risk to address hazard, vulnerability and exposure simultaneously.
Mobile gaze tracking and an extended linkography for collaborative sketching and designing
Authors: Härkki Tellervo 
Published: February 2022

AbstractThe demand for teaching and learning collaborative design is probably greater than ever thanks to many influential parties highlighting creativity, collaboration and designing as necessary future skills. However, ‘good’ collaborative design necessitates a clear understanding of what constitutes ‘good’ and ‘collaboration’, and of how an individual’s activities contribute to a team achieving a satisfactory design solution. This research aimed to develop a methodological approach to facilitate the analysis of collaborative interaction and design as equally meaningful and closely linked components, and to equally account for verbal and sketching activities. The developed extended linkography accounts for verbal and sketched design moves and utilises mobile gaze-tracker data to confirm visual attention and linkages between sketches. The method has potential importance for research on design cognition and collaboration, but also for analysing collaborative problem solving in other contexts. To illustrate the method, a case study of packaging design students collaboratively designing a sustainable Christmas basket is presented. The gaze data revealed that students’ collaborative engagement with ‘shared’ sketches differed: from the two proposals selected for 3D mock-up-building, one was developed concertedly and one as an aside of the shared process. The latter development appeared to be independent, seeking little input from team members. All in all, three qualitatively different interactive design processes were identified, and quantitative levels of collaboration were measured through Convergent and Divergent Collaboration Indexes. To determine the role of sketches for each of the students’ designing, gaze data was indispensable.
The Impact of Resilience, Alexithymia and Subjectively Perceived Helplessness of Myocardial Infarction on the Risk of Posttraumatic Stress
Authors: Kirchner Kevin , Brauer Hartmut , Van der Auwera Sandra , Grabe Hans Jörgen 
Published: February 2022

AbstractThe aim of this study was to investigate the impact of resilience, alexithymia and the subjectively perceived severity (fear of death, pain intensity, helplessness) of myocardial infarction (MI) on posttraumatic symptom severity (PTSS) after MI. Patients were assessed with the Posttraumatic Diagnostic Scale (PDS), Resilience Scale (RS-11) and Toronto Alexithymia Scale (TAS-20). Subjectively perceived severity of MI was measured with three items on a 10-point Likert scale. To test our hypothesis, we applied Pearson correlations as well as multiple hierarchical linear regression analyses. A higher resilience score was significantly associated with lower (r =  − .39, p < .001) PTSS. Higher scores of alexithymia (r = .38, p < .01) and subjectively perceived helplessness (r = .42, p < .001) were associated with higher PTSS. Multiple hierarchical linear regression analyses revealed that resilience, the TAS-20 subscale difficulty identifying feelings (DIF) and especially subjectively perceived helplessness were independent significant predictors for the PTSS, adjusted R2 = .29, F(5, 102) = 9.57, p < .001. Our results suggest that resilience reduces the PTSS whereas alexithymia and subjectively perceived helplessness increase the risk. Especially the subjectively perceived helplessness explains a high degree of variance of PTSS and should be assessed to hindering further mental health burden.
An analysis of the parameterized complexity of periodic timetabling
Authors: Lindner Niels , Reisch Julian 
Published: February 2022

AbstractPublic transportation networks are typically operated with a periodic timetable. The periodic event scheduling problem (PESP) is the standard mathematical modeling tool for periodic timetabling. PESP is a computationally very challenging problem: For example, solving the instances of the benchmarking library PESPlib to optimality seems out of reach. Since PESP can be solved in linear time on trees, and the treewidth is a rather small graph parameter in the networks of the PESPlib, it is a natural question to ask whether there are polynomial-time algorithms for input networks of bounded treewidth, or even better, fixed-parameter tractable algorithms. We show that deciding the feasibility of a PESP instance is NP-hard even when the treewidth is 2, the branchwidth is 2, or the carvingwidth is 3. Analogous results hold for the optimization of reduced PESP instances, where the feasibility problem is trivial. Moreover, we show W[1]-hardness of the general feasibility problem with respect to treewidth, which means that we can most likely only accomplish pseudo-polynomial-time algorithms on input networks with bounded tree- or branchwidth. We present two such algorithms based on dynamic programming. We further analyze the parameterized complexity of PESP with bounded cyclomatic number, diameter, or vertex cover number. For event-activity networks with a special—but standard—structure, we give explicit and sharp bounds on the branchwidth in terms of the maximum degree and the carvingwidth of an underlying line network. Finally, we investigate several parameters on the smallest instance of the benchmarking library PESPlib.
Spirituality for Coping with the Trauma of a Loved One’s Death During the COVID-19 Pandemic: An Italian Qualitative Study
Authors: Biancalani Gianmarco , Azzola Claudia , Sassu Raluca , Marogna Cristina , Testoni Ines 
Published: February 2022

AbstractSpirituality may be a key factor in reducing the negative psychological effects of traumatic events and a means by which the experience of grief can be processed.The objective of the present research is to assess whether and how spirituality provided concrete support in those who lost a loved one during the COVID-19 pandemic. The participants are 8 people from the most affected cities in northern Italy. They were interviewed in depth, the interviews were transcribed and the texts were analyzed through Interpretive Phenomenological Analysis. The results show that spirituality has been found to be a protective factor with regard to the processing of grief in crisis situations such as the COVID-19 pandemic, in particular with regard to the belief that the deceased loved one is now in an otherworldly dimension. In addition, the celebration of a funeral rite offers support to the grieving person in the early stages of mourning thus laying the foundation for a healthy grieving process. It is therefore important to support individual spirituality, which can be a useful tool for processing the traumatic experience, especially in difficult times such as the COVID-19 pandemic.
Assessing Pre-service Teachers’ Views of Scientists, Their Activities, and Locations: the VoSAL Instrument
Authors: Reinisch Bianca , Krell Moritz 
Published: February 2022

AbstractIn science education, learners’ conceptions of scientists and their work are often assessed by the Draw-A-Scientist Test (DAST). Due to validity concerns, methodical literature demands the development of alternative instruments to measure learners’ conceptions validly and efficiently. This study presents an instrument with 29 rating scale items to assess pre-service teachers’ (PSTs) Views of Scientists, their Activities, and Locations (VoSAL). The items were developed based on theoretical considerations, previous findings, and repeated discussions by biology education experts. After several steps of test development, PSTs filled out the questionnaire (N = 1,098). Exploratory factor analyses and reliability measurements mostly confirm the proposed structure. Groups comparisons were performed regarding the results from pre-service biology teachers of three different study stages (nfreshmen = 114; nsecond and third years = 124; ngraduates = 107). Analyses of variance and corresponding post-hoc tests showed that undergraduates (freshmen, second and third years) differ significantly from graduates regarding the scales stereotypical appearance, inquiry location, and scientific activity, with undergraduates having more stereotypical conceptions than graduates. In sum, the VoSAL can be utilized to gain valid data of PSTs’ conceptions about scientists and their work. Also, the VoSAL can be considered efficient since the test time is between 5 and 10 min. Thus, the questionnaire is valuable in studies that aim to introduce and expose PSTs to realistic science images.
Effect of CPAP on blood glucose fluctuation in patients with type 2 diabetes mellitus and obstructive sleep apnea
Authors: Zhao Xin , Zhang Wei , Xin Sixu , Yu Xiaofeng , Zhang Xiaomei 
Published: February 2022

Abstract

Purpose
This study aimed to investigate the effect of continuous positive airway pressure (CPAP) on blood glucose fluctuation in patients with type 2 diabetes mellitus (T2DM) and obstructive sleep apnea (OSA).

Methods
Patients with T2DM and OSA were divided into an intervention group and a control group. All patients were treatment naïve. The intervention group was given CPAP therapy. The subjects were monitored using a continuous glucose monitoring system (CGMS) for 2 weeks.

Results
Of 60 patients, 30 were selected to receive CPAP intervention while 30 without CPAP served as controls. The CPAP tolerance of the intervention group was good, with average time on CPAP therapy of 55.2 ± 4.3 days, and average daily time on CPAP therapy of 8.3 ± 2.8 h. The postprandial blood glucose (PBG), fasting blood glucose (FBG), and HbA1c levels in the intervention group decreased significantly (P < 0.05). Significant variations in 24-h mean blood glucose and night-time mean blood glucose were significantly lower with CPAP therapy than without therapy (P < 0.05, respectively). The mean of daily differences and mean ambulatory glucose excursions were both considerably lower with treatment than without (P < 0.05, respectively). There was also a significant difference in time in range and time above range (P < 0.05, respectively).

Conclusion
CPAP treatment may significantly improve the blood glucose level and blood glucose stability in patients with T2DM and OSA. CPAP is an effective treatment method beyond lifestyle intervention and drug therapy.
Maternal Nutritional Status and Pregnancy Outcomes Post-bariatric Surgery
Authors: Alamri Sara H. , Abdeen Ghalia N. 
Published: February 2022

AbstractObesity in childbearing women leads to pregnancy-related complications such as gestational diabetes mellitus, pregnancy-associated hypertensive disorders, and macrosomia. Weight loss helps reduce these complications. Studies show bariatric surgery reduces obesity-related complications during and after pregnancy. However, bariatric surgery might be associated with adverse outcomes, such as low birth weight and small-for-gestational-age infants. In addition, several studies suggest pregnancy occurring less than a year post-bariatric surgery adversely affects pregnancy outcomes and causes micronutrients deficiency since the dramatic weight loss occurs in the first year. These adverse outcomes may lead to nutritional malabsorption, such as anemia and low vitamin B12 and folic acid levels. The review aims to overview obesity-related complications during pregnancy and the benefits and risks of bariatric surgery on pregnancy outcomes and maternal nutrition status.Graphical abstract
Fast Multivariate Probit Estimation via a Two-Stage Composite Likelihood
Authors: Ting Bryan , Wright Fred , Zhou Yi-Hui 
Published: February 2022

AbstractThe multivariate probit is popular for modeling correlated binary data, with an attractive balance of flexibility and simplicity. However, considerable challenges remain in computation and in devising a clear statistical framework. Interest in the multivariate probit has increased in recent years. Current applications include genomics and precision medicine, where simultaneous modeling of multiple traits may be of interest, and computational efficiency is an important consideration. We propose a fast method for multivariate probit estimation via a two-stage composite likelihood. We explore computational and statistical efficiency, and note that the approach sets the stage for extensions beyond the purely binary setting.
Electro-sequence analysis and natural resources potential of a transitional environment in central swamp depobelt, Niger delta, Nigeria
Authors: Akaerue Emmanuel I. , Nnakuba Joseph N. , Urang Job G. , Ebong Ebong D. , Eradiri Joseph N. , Ugbaja Anthony N. 
Published: February 2022

AbstractSequence stratigraphy and Electrosequence of the Don-Field Central Swamp depobelt of the Niger Delta Basin, was carried out using well logs, biostratigraphic and core data. The aim of this study is to re-characterise and revalidate the reservoirs within the study area and provide an optimum framework for predicting reservoir character, development and reservoir quality distribution. Detailed petrophysical evaluation reveals proficient hydrocarbon reservoir units with variable parameters (i.e. porosity, permeability and shale volume) that can accommodate productive hydrocarbon reserve. Core data analyses revealed heavy minerals like pyrites and glauconites that can be of economic interest. The gamma wireline signatures of the wells show reservoir units that are predominantly blocky in shape indicative of fluvial channels. Fluvial channels are typically associated with coastal and/or marginal marine environments. More so, the aforementioned observations were validated using palaeoenvironmental interpretation of strata penetrated by Well-1, Well-2, and Well-3 via the sidewall core analyses. Sequence stratigraphic surfaces such as maximum flooding surfaces (MFS) and sequence boundary (SB) were observed to show good correlation with palynological and foraminiferal zones. The stacking patterns (i.e. progradation, retrogradation and aggradation) encountered gave acumen into systems tracts (i.e. lowstand system tract (LST), transgressıve system tract (TST) and highstand system tract (HST) interpretation. These system tracts constitute a depositional sequence set of middle—late Miocene age bounded chronologically by MFS of 9.5 Ma, 12.8 Ma, 15.0 Ma, 15.9 Ma and SB of 12.1 Ma, 13.1 Ma, 15.5 Ma, 15.9 Ma. The SB and MFS were delineated based on Shell Petroleum Development Company (SPDC) biozonation scheme: F-zone and P-zone were within P820-P680 and F9500-F9600/F9700 as contained in the biofacies interpreted data of index fossils (Globorotalia foshi S.I; Globorotalia praefohsi; Globorotalia peripheroacuta; Orbulina spp; Praeorbulina sicana; Paragloborotalia mayeri; Neogloboquadrina acostaensis) which corresponded to the alphanumeric code N8–N16 planktonic foraminiferal zones of Blow.