bluuebunny/crossref_metadata_2025_split huggingface dataset:
Convergence of parallel overlapping domain decomposition methods for the Helmholtz equation
Authors: Gong Shihua , Gander Martin J. , Graham Ivan G. , Lafontaine David , Spence Euan A. 
Published: September 2022

AbstractWe analyse parallel overlapping Schwarz domain decomposition methods for the Helmholtz equation, where the exchange of information between subdomains is achieved using first-order absorbing (impedance) transmission conditions, together with a partition of unity. We provide a novel analysis of this method at the PDE level (without discretization). First, we formulate the method as a fixed point iteration, and show (in dimensions 1, 2, 3) that it is well-defined in a tensor product of appropriate local function spaces, each with$$L^2$$L2impedance boundary data. We then obtain a bound on the norm of the fixed point operator in terms of the local norms of certain impedance-to-impedance maps arising from local interactions between subdomains. These bounds provide conditions under which (some power of) the fixed point operator is a contraction. In 2-d, for rectangular domains and strip-wise domain decompositions (with each subdomain only overlapping its immediate neighbours), we present two techniques for verifying the assumptions on the impedance-to-impedance maps that ensure power contractivity of the fixed point operator. The first is through semiclassical analysis, which gives rigorous estimates valid as the frequency tends to infinity. At least for a model case with two subdomains, these results verify the required assumptions for sufficiently large overlap. For more realistic domain decompositions, we directly compute the norms of the impedance-to-impedance maps by solving certain canonical (local) eigenvalue problems. We give numerical experiments that illustrate the theory. These also show that the iterative method remains convergent and/or provides a good preconditioner in cases not covered by the theory, including for general domain decompositions, such as those obtained via automatic graph-partitioning software.
Killer whale innovation: teaching animals to use their creativity upon request
Authors: Hill Heather Manitzas , Weiss Myriam , Brasseur Isabelle , Manibusan Alexander , Sandoval Irene R. , Robeck Todd , Sigman Julie , Werner Kristen , Dudzinski Kathleen M. 
Published: September 2022

AbstractThinking flexibly is a skill that enables animals to adapt to changing environments, which enhances survival. Killer whales,Orcinus orca, as the ocean apex predator display a number of complex cognitive abilities, especially flexible thinking or creativity when it comes to foraging. In human care, smaller dolphins and other marine mammals have been trained to think creatively while under stimulus control. The results of these previous studies have demonstrated that bottlenose dolphins,Tursiops truncatus, can create original behaviors in response to an innovative cue. We trained and tested a total of nine killer whales from two different facilities on the innovate concept, using the same methodology. The killer whales ranged in age from 5 to 29 yrs with 4 females and 5 males. The results indicate that the killer whales demonstrated high fluency, originality, some elaboration, and flexibility in their behaviors. Individual variability was observed with younger animals demonstrating more variable behaviors as compared to the older animals. Males seemed to display less complex and lower energy behaviors as compared to females, but this impression may be driven by the age or size of the animal. These results support existing evidence that killer whales are dynamic in their thinking and behavior.
A novel method for identifying coded tags recorded on aquatic acoustic monitoring systems
Authors: Lowe Christopher D. , Tregenza Nicolas J. C. , Allen Claudia J. , Blow Georgina E. , Nuuttila Hanna , Bertelli Chiara M. , Mendzil Anouska F. , Stamp Thomas , Sheehan Emma V. , Davies Peter , Gordon Jonathan C. D. , Bolland Jonathan D. , Britton J. Robert , Main Robert , Velterop Randolph , Crundwell Charles , Schofield Andrew , Clarke David R. K. 
Published: September 2022

AbstractAquatic biotelemetry increasingly relies on using acoustic transmitters (‘tags’) that enable passive detection of tagged animals using fixed or mobile receivers. Both tracking methods are resource-limited, restricting the spatial area in which movements of highly mobile animals can be measured using proprietary detection systems. Transmissions from tags are recorded by underwater noise monitoring systems designed for other purposes, such as cetacean monitoring devices, which have been widely deployed in the marine environment; however, no tools currently exist to decode these detections, and thus valuable additional information on animal movements may be missed. Here, we describe simple hybrid methods, with potentially wide application, for obtaining information from otherwise unused data sources. The methods were developed using data from moored, acoustic cetacean detectors (C-PODs) and towed passive receiver arrays, often deployed to monitor the vocalisations of cetaceans, but any similarly formatted data source could be used. The method was applied to decode tag detections that were found to have come from two highly mobile fish species, bass (Dicentrarchus labrax) and Twaite shad (Alosa fallax), that had been tagged in other studies. Decoding results were validated using test tags; range testing data were used to demonstrate the relative efficiency of these receiver methods in detecting tags. This approach broadens the range of equipment from which acoustic tag detections can be decoded. Novel detections derived from the method could add significant value to past and present tracking studies at little additional cost, by providing new insights into the movement of mobile animals at sea.
Static detection of equivalent mutants in real-time model-based mutation testing
Authors: Basile Davide , Beek Maurice H. ter , Lazreg Sami , Cordy Maxime , Legay Axel 
Published: September 2022

AbstractModel-based mutation testing has the potential to effectively drive test generation to reveal faults in software systems. However, it faces a typical efficiency issue since it could produce many mutants that are equivalent to the original system model, making it impossible to generate test cases from them. We consider this problem when model-based mutation testing is applied to real-time system product lines, represented as timed automata. We define novel, time-specific mutation operators and formulate the equivalent mutant problem in the frame of timed refinement relations. Further, we study in which cases a mutation yields an equivalent mutant. Our theoretical results provide guidance to system engineers, allowing them to eliminate mutations from which no test case can be produced. Our empirical evaluation, based on a proof-of-concept implementation and a set of benchmarks from the literature, confirms the validity of our theory and demonstrates that in general our approach can avoid the generation of a significant amount of the equivalent mutants.
A critical review on vegetable oil-based bio-lubricants: preparation, characterization, and challenges
Authors: Uppar Rajendra , Dinesha P. , Kumar Shiva 
Published: September 2022

AbstractLubrication is a procedure that involves the use of a chemical called lubricant to reduce wear on surfaces that are in relative motion with each other. It aids in the transmission of pressure created between opposing surfaces. Lubricants serve as anti-friction agents. They allow for flat-level operations by retaining superior machine functionality and reducing the likelihood of recurring breakdowns. In today's world, the price of crude oil is rising in tandem with the depletion of reservoirs (oil). As a result, protecting a pollution-free environment is a major responsibility. The focus of current research is on creating and using an ecologically friendly lubricant made from renewable resources. This paper discusses the preparation, characteristics, characterization advantages, and uses of vegetable oil-based non-edible lubricants. Chemical changes are required since vegetable oil-based lubricants have lower thermal and oxidative stability. The article explores the required chemical modification approaches for improving the properties of bio-lubricants. The characterization of bio-lubricants has been elaborately discussed, highlighting the major pros and cons. The drawbacks and also future scope of the bio-lubricants have been highlighted.
Morphology of the Bony Labyrinth Supports the Affinities of Paradolichopithecus with the Papionina
Authors: Le Maître Anne , Guy Franck , Merceron Gildas , Kostopoulos Dimitris S. 
Published: September 2022

AbstractDiscoveries in recent decades indicate that the large papionin monkeys Paradolipopithecus and Procynocephalus are key members of the Late Pliocene – Early Pleistocene mammalian faunas of Eurasia. However, their taxonomical status, phylogenetic relationships, and ecological profile remain unclear. Here we investigate the two latter aspects through the study of the inner ear anatomy, as revealed by applying micro-CT scan imaging techniques on the cranium LGPUT DFN3-150 of Paradolichopithecus from the lower Pleistocene (2.3 Ma) fossil site Dafnero-3 in Northwestern Greece. Using geometric morphometric methods, we quantified shape variation and the allometric and phylogenetic signals in extant cercopithecines (n = 80), and explored the morphological affinities of the fossil specimen with extant taxa. LGPUT DFN3-150 has a large centroid size similar to that of baboons and their relatives. It shares several shape features with Macacina and Cercopithecini, which we interpret as probable retention of a primitive morphology. Overall, its inner ear morphology is more consistent with a stem Papionini more closely related to Papionina than Macacina, or to a basal crown Papionina. Our results, along with morphometrical and ecological features from previous studies, call into question the traditional hypothesis of a Paradolichopithecus-Macacina clade, and provide alternative perspectives in the study of Eurasian primate evolution during the late Neogene-Quaternary.
Disclosing the person in renal care coordination: why unpredictability, uncertainty, and irreversibility are inherent in person-centred care
Authors: Gunnarson Martin 
Published: September 2022

AbstractThis article explores an example of person-centred care: the work of so-called renal care coordinators. The empirical basis of the article consists of qualitative interviews with renal care coordinators, alongside participant observations of their patient interactions. During the analyses of the empirical material, I found that that one of the coordinators’ most fundamental ambitions is to get to know who the patient is. This is also a central tenet of person-centred care. The aim of the article is not only to argue for the plausibility of this tenet, but also, and more importantly, to highlight and explore its implications in the context of healthcare, through the example of renal care coordination. By drawing on the philosophy of Hannah Arendt, the article shows that the disclosure of who the patient is that takes place in person-centred care requires speech and action, which are modes of human activity that initiate processes characterized by unpredictability, uncertainty, and irreversibility. This unpredictability, uncertainty, and irreversibility, found to be inherent in person-centred care, is then discussed in relation to the pursuit of certainty characterizing contemporary evidence-based medicine. At the end of the article the conclusion is drawn that, if healthcare is to be person-centred, it must find ways of accommodating the contradictory pursuits of certainty and uncertainty found in evidence-based medicine and person-centred care respectively.
Global Alterations of Whole Brain Structural Connectome in Parkinson’s Disease: A Meta-analysis
Authors: Zuo Chao , Suo Xueling , Lan Huan , Pan Nanfang , Wang Song , Kemp Graham J. , Gong Qiyong 
Published: September 2022

AbstractRecent graph-theoretical studies of Parkinson's disease (PD) have examined alterations in the global properties of the brain structural connectome; however, reported alterations are not consistent. The present study aimed to identify the most robust global metric alterations in PD via a meta-analysis. A comprehensive literature search was conducted for all available diffusion MRI structural connectome studies that compared global graph metrics between PD patients and healthy controls (HC). Hedges’ g effect sizes were calculated for each study and then pooled using a random-effects model in Comprehensive Meta-Analysis software, and the effects of potential moderator variables were tested. A total of 22 studies met the inclusion criteria for review. Of these, 16 studies reporting 10 global graph metrics (916 PD patients; 560 HC) were included in the meta-analysis. In the structural connectome of PD patients compared with HC, we found a significant decrease in clustering coefficient (g = -0.357, P = 0.005) and global efficiency (g = -0.359, P < 0.001), and a significant increase in characteristic path length (g = 0.250, P = 0.006). Dopaminergic medication, sex and age of patients were potential moderators of global brain network changes in PD. These findings provide evidence of decreased global segregation and integration of the structural connectome in PD, indicating a shift from a balanced small-world network to ‘weaker small-worldization’, which may provide useful markers of the pathophysiological mechanisms underlying PD.
Getting the best from pot trials with soil-borne Oomycetes
Authors: Davison Elaine , Hardy Giles 
Published: September 2022

Abstract
Soil-borne Oomycetes are important pathogens of nursery plants, agricultural and horticultural crops, and woody plants in natural ecosystems. They are most damaging when plants are overwatered or growing in poorly drained sites. Poor growth could result from root infection, root damage resulting from the anoxic conditions which develop in saturated soil, or both. This is essential information for devising appropriate management options, as these will differ depending on the primary cause of poor health. Pot experiments are often used to determine whether these soil-borne pathogens cause root infection which is assumed to be by zoospores produced in wet soil. Soil saturation followed by draining, is included as part of the experimental protocol to generate zoospores from the inoculum and facilitate their movement to, and infection of, plant roots. However, if soil saturation persists until the soil becomes anoxic, this may affect the host. In our opinion, this can muddle the interpretation of results, unless there are adequate controls which include root infection in unsaturated soil, and the effect of soil saturation on the host in the absence of the pathogen. Pot experiments are expensive in both time and equipment. They must be conducted to provide clear answers to the postulated hypotheses and ensure experiments are repeatable. We provide guidelines for conducting such pot experiments which will assist in clarifying the roles of these pathogens and soil saturation on plant growth, both separately and in combination.
The impact of restrictions on psychological outcomes in patients with inflammatory bowel disease on biological treatment during the coronavirus pandemic in Norway
Authors: Opheim Randi , Moum Kristian Marling , Småstuen Milada Cvancarova , Moum Bjørn 
Published: September 2022

Abstract
Purpose
The coronavirus (COVID-19) pandemic restrictions have led to changes in the follow-up routine of patients in outpatient clinics at hospitals in Norway. The purpose of this study was to assess possible associations between psychological health and concerns regarding COVID-19 societal and hospital restrictions in patients with inflammatory bowel disease on biological therapy.

Methods
Patients with IBD (≥ 18 years) undergoing biological treatment (TNF-alpha inhibitor, ustekinumab, vedolizumab) for IBD were recruited from an IBD outpatient clinic in Norway. Data were collected through self-report, including questions covering concerns regarding their disease, medical therapy, and follow-up during the pandemic, Patient Health Questionnaire–9 (PHQ-9) and Generalized Anxiety Disorder–7 questionnaire (GAD-7). Multiple logistic regression with backward conditional selection was fitted to examine associations between patients’ depression and anxiety levels and their concerns about COVID-19 restrictions, controlled for sociodemographic and disease-related factors.

Results
Five-hundred and six patients were included in this study. General condition, self-isolation, employment status, fear of visiting the hospital, and changes to patients’ appointments made by the hospital were independently associated with higher levels of depression. Female gender, experiencing symptoms of COVID-19, self-isolation, experiencing an increased risk of COVID-19 because of IBD, being afraid to visit the hospital because of COVID-19 restrictions, and having their appointment cancelled due to COVID-19 were independently associated with higher anxiety levels.

Conclusion
Concerns about physical health and societal and hospital restrictions were associated with anxiety and depression in patients with IBD undergoing biological treatment. The findings will help facilitate healthcare services for patients with IBD in outpatient clinics and develop guidelines for follow-up.
Construction and characterisation of glycoprotein E and glycoprotein I deficient mutants of Australian strains of infectious laryngotracheitis virus using traditional and CRISPR/Cas9-assisted homologous recombination techniques
Authors: Armat Marzieh , Vaz Paola K. , Browning Glenn F. , Noormohammadi Amir H. , Hartley Carol A. , Devlin Joanne M. 
Published: September 2022

AbstractIn alphaherpesviruses, glycoproteins E and I (gE and gI, respectively) form a heterodimer that facilitates cell-to-cell spread of virus. Using traditional homologous recombination techniques, as well as CRISPR/Cas9-assisted homologous recombination, we separately deleted gE and gI coding sequences from an Australian field strain (CSW-1) and a vaccine strain (A20) of infectious laryngotracheitis virus (ILTV) and replaced each coding sequence with sequence encoding green fluorescent protein (GFP). Virus mutants in which gE and gI gene sequences had been replaced with GFP were identified by fluorescence microscopy but were unable to be propagated separately from the wildtype virus in either primary chicken cells or the LMH continuous chicken cell line. These findings build on findings from a previous study of CSW-1 ILTV in which a double deletion mutant of gE and gI could not be propagated separately from wildtype virus and produced an in vivo phenotype of single-infected cells with no cell-to-cell spread observed. Taken together these studies suggest that both the gE and gI genes have a significant role in cell-to-cell spread in both CSW-1 and A20 strains of ILTV. The CRISPR/Cas9-assisted deletion of genes from the ILTV genome described in this study adds this virus to a growing list of viruses to which this approach has been used to study viral gene function.
Mechanical Characterisation and Cohesive Law Calibration for a Nitrocellulose Based–Cyclotetramethylene Tetranitramine (HMX) Polymer Bonded Explosive
Authors: Iqbal M. , Zhang R. , Ryan P. , Lewis D. , Connors S. , Charalambides M. N. 
Published: September 2022

Abstract
Background
Mechanical characterisation of polymer bonded explosives (PBXs) is crucial for their safe handling during storage and transportation. At temperatures higher than the binder's glass transition temperature, fracture is caused predominantly by interface debonding between the binder and explosive crystals. Interfacial friction between debonded crystals can lead to accidental detonation of the PBX material, even under a very small external load. Cohesive zone laws can describe this interfacial debonding.

Objective
This study aims to experimentally calibrate the interfacial cohesive zone parameters of a nitrocellulose based–cyclotetramethylene tetranitramine (HMX) PBX, a particulate composite with an 88% volume fraction of crystals.

Methods
Compact tension fracture tests, coupled with Digital Image Correlation (DIC) were used to capture the strain fields around the crack tip. The experimental data were used in conjunction with an extended Mori–Tanaka method considering the effect of interfacial debonding.

Results
The cohesive zone parameters were successfully calibrated and were found to be crosshead rate independent. The values of the critical traction $${\sigma }_{int}^{max}$$

σ

int

max

and interfacial energy release rate, $${\gamma }_{if}$$

γ

if

, dropped significantly with increasing temperature. The experimental method followed in this study is generic, and it can be employed to extract the cohesive zone parameters characterising the interface behaviour between the filler and matrix in other particulate filled, polymer composite materials.

Conclusions
Cohesive zone properties can be experimentally determined to provide inputs in micromechanical simulations linking the microstructure of the PBX composite to its macroscopic response as well as enabling the estimation of hot spot formation at debonded crystal interfaces.
Karriere mit Kind – Wie wirkt sich frühe Mutterschaft auf das Erreichen von Führungspositionen bei Akademikerinnen aus?
Authors: Brandt Gesche , Spangenberg Heike 
Published: September 2022

ZusammenfassungDieser Beitrag widmet sich im Anschluss an die Diskussion zur Entzerrung der „Rushhour des Lebens“ der Frage, ob es vorteilhaft für die berufliche Karriere von Akademikerinnen ist, wenn sie, anstatt nach dem Berufseinstieg, bereits vor dem Studienabschluss oder direkt im Anschluss daran Kinder bekommen. Während ein Aufschieben der Erstgeburt verschiedenen Studien zufolge durchaus positiv für den Karriereverlauf ist, ist der Zusammenhang zwischen einer frühen Familiengründung und dem Erreichen einer Führungsposition für Deutschland bislang kaum erforscht. Anhand von Absolventendaten des Deutschen Zentrums für Hochschul- und Wissenschaftsforschung (DZHW) wird mit logistischen Regressionsanalysen untersucht, wie wahrscheinlich das Erreichen einer Führungsposition für Mütter mit akademischem Abschluss in Abhängigkeit vom Geburtentiming ist. Die Befunde zeigen, dass Mütter, die bereits vor dem Berufseinstieg Kinder bekommen haben, zehn Jahre nach Studienabschluss mit höherer Wahrscheinlichkeit in Führungspositionen tätig sind als die Vergleichsgruppe der Mütter, die erst während des Erwerbsverlaufs eine Familie gegründet haben. Erstere weisen im Erwerbsverlauf weniger Vollzeitphasen, aber mehr Teilzeitphasen und weniger Unterbrechungsphasen auf. Die Ergebnisse stützen humankapital- und signaltheoretische Annahmen, wonach Akademikerinnen auf dem Arbeitsmarkt von einer Familiengründung vor dem Berufseinstieg profitieren, da längere Erwerbsunterbrechungen unwahrscheinlicher werden.
Emotionen in (professionellen) Beziehungsverhältnissen im Feld der Sozialpsychiatrie
Authors: Dörr Margret , May Michael 
Published: September 2022

ZusammenfassungDer Beitrag leitet in den Schwerpunkt „Emotionen in (professionellen) Beziehungsverhältnissen im Feld der Sozialpsychiatrie“ ein, indem er Voraussetzungen, Konzepte, Erfahrungen und Schwierigkeiten im Umgang mit Emotionen in einer recoveryorientierten sozialpsychiatrischen Praxis skizziert und die Beiträge kurz vorstellt.