bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chemical Systems with Limit Cycles
Authors: Erban Radek , Kang Hye-Won 
Published: July 2023

AbstractThe dynamics of a chemical reaction network (CRN) is often modeled under the assumption of mass action kinetics by a system of ordinary differential equations (ODEs) with polynomial right-hand sides that describe the time evolution of concentrations of chemical species involved. Given an arbitrarily large integer $$K \in {\mathbb N}$$

K
∈
N

, we show that there exists a CRN such that its ODE model has at least K stable limit cycles. Such a CRN can be constructed with reactions of at most second-order provided that the number of chemical species grows linearly with K. Bounds on the minimal number of chemical species and the minimal number of chemical reactions are presented for CRNs with K stable limit cycles and at most second order or seventh-order kinetics. We also show that CRNs with only two chemical species can have K stable limit cycles, when the order of chemical reactions grows linearly with K.
How does telework modify informal workplace learning and how can supervisors provide support?
Authors: Mühlenbrock Inga , Richter Götz , Ellerkamp Amelie , Wöhrmann Anne Marit 
Published: July 2023

AbstractIn our conceptional contribution to the journal “Group. Interaction. Organization.” (GIO), we analyze how telework affects informal workplace learning. Dynamic changes in the world of work require employees to continually adapt, and informal workplace learning is presumed to be an effective tool to cope with new demands. The accelerating use of information and communication technologies and the COVID-19 pandemic have led to an increase in telework. We integrate research findings to illustrate a modified learning infrastructure and develop propositions referring to the octagon model of informal workplace learning (Decius et al. 2019). For this purpose, we present a conceptual framework that demonstrates why telework reduces opportunities for informal learning due to social processes and role boundaries and increases opportunities via higher self-regulation. Furthermore, we develop ideas how supervisors could support informal learning by organizing social exchange, providing learning cues and resources, and design telework arrangements. Finally, we present implications for practice and future research with suggestions for the adaption of the octagon model for digital working contexts.
Tuning the Properties of Reduced Graphene Oxide-Sr0.7Sm0.3Fe0.4Co0.6O3 Nanocomposites as Potential Photoanodes for Dye-Sensitized Solar Cells
Authors: Ndlovu Samantha , Muchuweni Edigar , Ollengo Moses A. , Nyamori Vincent O. 
Published: July 2023

AbstractThe generation of electricity using solar energy is an effective system to overcome the current global energy crisis. In this regard, developing new semiconductor materials can be of great interest in overcoming the challenge of charge carrier recombination and, hence, improving the power conversion efficiency (PCE) in photovoltaic devices, particularly dye-sensitized solar cells (DSSCs). Here, reduced graphene oxide-Sr0.7Sm0.3Fe0.6Co0.4O3 (RGO-SSFC) nanocomposites were synthesized using the hydrothermal method and characterized with the aid of microscopic and spectroscopic techniques, as well as a vibrating sample magnetometer, and further tested for application as photoanodes in DSSCs. Scanning electron microscopy revealed the presence of RGO nanosheets that were fully decorated by irregular- and spherical-shaped SSFC nanoparticles. Fourier-transform infrared spectroscopy confirmed the strong synergistic interaction of the RGO-SSFC nanocomposites. The large surface area of RGO-SSFC nanocomposite photoanodes facilitated effective dye loading, high photon absorption, and efficient electron transfer, resulting in better device performance. Compared to RGO-SSFC-0.1 and RGO-SSFC-1.0, the RGO-SSFC-0.5 nanocomposite showed an enhanced open-circuit voltage (Voc) of 0.84 V, short-circuit current density (Jsc) of 14.02 mA cm−2 , and a PCE of 7.25%. Eosin B and MK-2 organic dyes used as photosensitizers coated on the RGO-SSFC semiconductors resulted in low-cost DSSC photoanodes.
Graphical Abstract
The Impacts of Peri-Urban Expansion on Municipal and Ecosystem Services: Experiences from Makhado Biaba Town, South Africa
Authors: Ingwani E. , Thynell M. , Gurure L.R. , Ekelund N.G.A. , Gumbo T. , Schubert P. , Nel V. 
Published: July 2023

AbstractThe sub-Saharan cities are growing and changing due to immigration and modernization. One of the consequences of the current urbanization is that an increasing number of families residing in peri-urban areas of small rural towns lack access to basic municipal and ecosystem services. The purpose of the paper is to demonstrate the impacts of peri-urban expansion on municipal services provided by the governments and on ecosystems services through a case study of a small rural town called Makhado Biaba in Limpopo Province of South Africa. Makhado Biaba has been experiencing incessant rapid physical expansion over the years. Such spatial expansion into the peri-urban zone impacts the provision of municipal services such as water, electricity, sewerage, and refuse collection. In 2020, an exploratory mixed-methods study of some anthropocentric and ecosystem changes in Makhado Biaba Local Municipality in northeast South Africa was executed. Land use was mapped for the time period of 1990–2020, data were gathered through a household questionnaire in six villages, and interviews were held with municipal officials. Among others, the study showed that several municipal services are available in the peri-urban villages of Makhado Biaba Town despite the distant locations outside the urban core. However, services are not uniformly distributed due to that new peri-urban developments that are leapfrogging into vacant land without supporting infrastructure. The pace of the municipality in providing the necessary municipal services such as water and energy supply, as well as sanitation and refuse removal, is lagging behind the development of new and unplanned housing areas. The findings bring about information about the suburban livelihoods and how the administration of the peri-urban areas can respond to the needs of the inhabitants as well as to future challenges. For instance, to facilitate local development, recurrent and well-structured citizen dialogs with local groups to identify delivery failures are strongly recommended. In addition, the impact on ecosystem services by the city development and land use change stresses the need for guided urban development and expansion and also settlement upgrading programs in peri-urban zones to limit the bad effect on ecosystem services.
Risk of embolic events before and after antibiotic treatment initiation among patients with left-side infective endocarditis
Authors: Papadimitriou-Olivgeris Matthaios , Guery Benoit , Ianculescu Nicoleta , Auberson Denise , Tozzi Piergiorgio , Kirsch Matthias , Monney Pierre 
Published: July 2023

Abstract
Purpose
Embolic events (EEs) are a common complication of left-side infective endocarditis (IE). The aim of the present study was to identify risk factors for the occurrence of EEs before or after antibiotic treatment instauration among patients with definite or possible IE.

Methods
This retro-prospective study was conducted at the Lausanne University Hospital, Lausanne, Switzerland, from January 2014 to June 2022. EEs and IE were defined according to modified Duke criteria.

Results
A total of 441 left-side IE episodes were included (334: 76% were definite and 107; 24% possible IE). EE were diagnosed in 260 (59%) episodes; in 190 (43%) before antibiotic treatment initiation and 148 (34%) after. Central nervous system (184; 42%) was the most common site of EE. Multivariable analysis identified S. aureus (P 0.022), immunological phenomena (P < 0.001), sepsis (P 0.027), vegetation size ≥ 10 mm (P 0.003) and intracardiac abscess (P 0.022) as predictors of EEs before antibiotic treatment initiation. For EEs after antibiotic treatment initiation, multivariable analysis revealed vegetation size ≥ 10 mm (P < 0.001), intracardiac abscess (P 0.035) and prior EE (P 0.042), as independent predictors of EEs, while valve surgery (P < 0.001) was associated with lower risk for EEs.

Conclusions
We reported a high percentage of EEs among patients with left-side IE; vegetation size, intracardiac abscess, S. aureus and sepsis were independently associated with the occurrence of EEs. In addition to antibiotic treatment, early surgery led to further decrease in EEs incidence.
Biofeedback Interventions for Impulsivity-related Processes in Addictive Disorders
Authors: Lucas Ignacio , Solé-Morata Neus , Baenas Isabel , Rosinska Magda , Fernández-Aranda Fernando , Jiménez-Murcia Susana 
Published: July 2023

Abstract
Purpose of Review
Biofeedback is a promising technique that has been used as a treatment tool for different psychological disorders. In this regard, central (neurofeedback) and peripheral psychophysiological signals are presented as comprehensible stimuli with the aim of training specific processes. This review summarizes recent evidence about its use for the treatment of impulsivity-related processes in addictive disorders.

Recent Findings
Neurofeedback (NFB) protocols, based on electroencephalography (EEG) and functional magnetic resonance imaging (fMRI), have focused on substance use disorders. Biofeedback protocols using peripheral measures have been mainly based on heart rate variability and focused on behavioral addictions. EEG-NFB reported good results in the reduction of hyperarousal, impulsivity and risk taking in alcohol use disorder, and decreased rates of smoking and less craving in nicotine addiction. In fMRI-NFB, effective NFB performance has been related with better clinical outcomes in substance use disorders; however, its implication for treatment is still unclear. Heart rate variability biofeedback results are scarce, but some interventions have been recently designed aimed at treating behavioral addictions.

Summary
In addictive disorders, biofeedback interventions for impulsivity-related processes have shown promising results, although the literature is still scarce. Further research should aim at proving the effectiveness of biofeedback protocols as a treatment option for impulsivity in addictive disorders.
Prevention and Treatment of COVID-19-Associated Mucormycosis
Authors: Grafmiller Kevin T. , Lee Jivianne T. 
Published: July 2023

Abstract
Purpose of review
The present article will describe the unique factors present in COVID-19 patients that predispose these individuals to develop mucormycosis with emphasis placed on the prevention and treatment of COVID-19-associated mucormycosis (CAM).

Recent findings
Viral specific factors, pre-existing diabetes mellitus, and COVID-19 treatments combine to facilitate the development of mucormycosis. There appears to be a gross overutilization of steroid and antibiotic therapy among COVID-19 patients. Appropriate stewardship of antibiotic and steroid therapy in conjunction with tight glucose control may prevent the development of CAM and facilitate effective treatment with pharmacologic and surgical therapy. Appropriate treatment for CAM has been extrapolated from traditional mucormycosis therapies, and high-level, empiric evidence regarding the efficacy of CAM-specific treatments does not exist.

Summary
Cellular impacts of COVID-19, poor diabetic management, and overuse of antibiotics and corticosteroids likely combine and increase the risk of mucormycosis in COVID-19 patients. Minimizing these risk factors should curb the development of CAM and facilitate the treatment of CAM. Current treatment of CAM has been borrowed from traditional mucormycosis therapy. Future prospective studies are needed to begin developing CAM-specific treatment regimens.
Interactive mechanism and friction modelling of transient tribological phenomena in metal forming processes: A review
Authors: Yang Xiao , Liu Heli , Zhang Lemeng , Hu Yiran , Politis Denis J. , Gharbi Mohammad M. , Wang Liliang 
Published: July 2023

AbstractThe accurate representation of tribological boundary conditions at the tool-workpiece interface is crucial for analysis and optimization of formability, material flow, and surface quality of components during metal forming processes. It has been found that these tribological conditions vary spatially and historically with process parameters and contact conditions. These time-dependent tribological behaviours are also known as transient tribological phenomena, which are widely observed during forming processes and many other manufacturing application scenarios. However, constant friction values are usually assigned to represent complex and dynamic interfacial conditions, which would introduce deviations in the relevant predictions. In this paper, transient tribological phenomena and the contemporary understanding of the interaction between friction and wear are reviewed, and it has been found that these phenomena are induced by the transitions of friction mechanisms and highly dependent on complex loading conditions at the interface. Friction modelling techniques for transient behaviours for metal forming applications are also reviewed. To accurately describe the evolutionary friction values and corresponding wear during forming, the advanced interactive friction modelling has been established for different application scenarios, including lubricated condition, dry sliding condition (metal-on-metal contact), and coated system.
Hysteresis quantified control for switched reaction–diffusion systems and its application
Authors: Peng Zenglong , Song Xiaona , Song Shuai , Stojanovic Vladimir 
Published: July 2023

AbstractThis article addresses the exponential input-to-state stabilization problem for switched reaction–diffusion systems, in which the systems’ mode jumping complies with the persistent dwell-time switching mechanism. On the basis of point measurement, a novel pointwise controller is designed to reduce the amount of sensors and actuators. Then, a hysteresis quantizer with an adjustable parameter is employed to balance the quantitative effect and system’s performance, which can improve the bandwidth utilization of the network, simultaneously. Finally, the effectiveness of the proposed approach is demonstrated by an application of the temperature control of power semiconductor chips.
Few-shot temporal knowledge graph completion based on meta-optimization
Authors: Zhu Lin , Bai Luyi , Han Shuo , Zhang Mingcheng 
Published: July 2023

AbstractKnowledge Graphs (KGs) have become an increasingly important part of artificial intelligence, and KGs have been widely used in artificial intelligence fields such as intelligent answering questions and personalized recommendation. Previous knowledge graph completion methods require a large number of samples for each relation. But in fact, in KGs, many relationships are long-tail relationships, and the existing researches on few-shot completion mainly focus on static knowledge graphs. In this paper, we consider few-shot completion in Temporal Knowledge Graphs (TKGs) where the event may only hold for a specific timestamp, and propose a model abbreviated as FTMO based on meta-optimization. In this model, we combine the time-based relational-aware heterogeneous neighbor encoder, the cyclic automatic aggregation network, and the matching network to complete the few-shot temporal knowledge graph. We compare our model with the baseline models, and the experimental results demostrate the performance advantages of our model.
Measuring the Mathematical Maturity of Students in an Academic Development Programme
Authors: Simelane Bridgette , Engelbrecht Johann 
Published: July 2023

AbstractThis study focuses on students who are registered for the University of Pretoria’s academic development programme, the Four-year Programme (FYP). The programme was introduced as a gateway for students who are under-prepared but have the potential to succeed. This programme helps them to then continue their studies in mainstream science programmes. Our research focuses on measuring the change in the academic maturity of these students. In the theoretical framework that we developed, academic maturity is subdivided into two components, namely, non-subject based maturity, and subject based maturity (mathematical maturity). A mathematics test was also administered twice (at the beginning of the year and after the first semester) and was used to measure the subject based maturity of students. The results of the pre- and post-tests were compared to measure the improvement in students’ mathematical skills. The results showed that in all of the topics and constructs, there was an improvement in students’ mathematical abilities. The study also shows that students still struggle with the fundamentals of some mathematics topics, even after a semester of tuition in the FYP.
Stability analysis and deformation control method of swelling soft rock roadway adjacent to chambers
Authors: Zhang Wei , Zhao Tong-bin , Zhang Xu-tao 
Published: July 2023

AbstractThe surrounding rock of swelling soft rock roadway has high clay mineral content, strong expansibility after encountering water, low strength and poor cementation. The roadway is prone to large deformation under the influence of complex geostress. Combined with the support change of the development roadway of 2# coal in Hongqingliang mine, through geological survey, field observation and indoor test, the failure mechanism of the traditional support method of “anchor bolt + anchor cable + anchor mesh + shotcrete” was revealed by the adjustment of the surrounding rock stress after the excavation and support of the adjacent chambers. The research results show that the surrounding rock stress will cross the adjacent chambers and form a concentrated area near the weakly cemented roadway, and the maximum stress increase ratio of surrounding rock within the stress concentration range will reach 50%. The farther the chambers are from the weakly cemented roadway, the smaller the range of the surrounding rock stress concentration area. When the distance exceeds about 12 times the average height of the chambers, the surrounding rock stress concentration tends to disappear. Based on the fully enclosed combined support method of the "U-shaped steel sheds closure roof and sides + filling flexible material behind the sheds + laying reinforcement mesh and concrete in floor + strengthening key parts", the construction process flow applicable to the working condition of swelling soft rock roadway is formulated.
Neural style transfer between observed and simulated cloud images to improve the detection performance of tropical cyclone precursors
Authors: Matsuoka Daisuke , Easterbrook Steve 
Published: July 2023

Abstract
A common observation in the field of pattern recognition for atmospheric phenomena using supervised machine learning is that recognition performance decreases for events with few observed cases, such as extreme weather events. Here, we aimed to mitigate this issue by using numerical simulation and satellite observational data for training. However, as simulation and observational data possess distinct characteristics, we employed neural style transformation learning to transform the simulation data to more closely resemble the observational data. The resulting transformed cloud images of the simulation data were found to possess physical features comparable to those of the observational data. By utilizing the transformed data for training, we successfully improved the classification performance of cloud images of tropical cyclone precursors 7, 5, and 3 days before their formation by 40.5, 90.3, and 41.3%, respectively.
Uncharted Waters: Solidarity with Migrants at Sea and the Freedom of Expression
Authors: Hahn Charlotte , Istrefi Kushtrim 
Published: July 2023

AbstractEuropean States have adopted policies to push back not only against migrants fleeing across the Mediterranean Sea but also against those individuals and NGOs who act in solidarity with them. This article seeks to demonstrate how the activities of maritime NGOs in solidarity with migrants may be protected from States’ interferences within the framework of international human rights law. In a novel inquiry, we submit that both monitoring as the gathering of information and even search and rescue operations may be considered forms of the freedom of expression. Furthermore, as State measures, ranging from intimidation to criminalization, undoubtedly serve to counter migration to Europe, we argue that Article 18 ECHR may be violated if the interferences’ ulterior purpose is exposed. By showing solidarity, at times we also express ideas. Think of those who hid Jewish people during the Nazi regime, the NGOs who organized private aircrafts to save Afghans after the Taliban’s takeover, and those who today go to the Ukrainian border to collect people fleeing the war. This article is based on the authors’ conviction that human rights law must adapt to remain viable in the face of unprecedented human rights challenges and the resourceful civic actions to meet them.
Binturong ecology and conservation in pristine, fragmented and degraded tropical forests
Authors: Honda Arata , Amir Zachary , Mendes Calebe P. , Moore Jonathan H. , Luskin Matthew Scott 
Published: July 2023

AbstractThe persistence of seed-dispersing animals in degraded habitats could be critical for ensuring the long-term conservation value and restoration of forests. This is particularly important in Southeast Asia, where > 70% of the remaining forest areas are within 1 km of a forest edge, and many are degraded (e.g. logged). We synthesized information on the habitat associations of the binturongArctictis binturong, a large, semi-arboreal, frugivorous civet and one of the most important seed dispersers in the region, especially for figs (Ficusspp). We adopted a multiscale approach by employing ensemble species distribution modelling from presence-only records, assessing landscape-scale variation in detection rates in published camera-trap studies and using hierarchical occupancy modelling to assess local (i.e. within-landscape) patterns observed from 20 new camera-trap surveys. Contrary to prior reports that binturongs are strongly associated with intact forests, the species was equally present in degraded forests and near forest edges where sufficient forest cover was maintained (> 40% forest cover within a 20-km radius). The species also tolerates moderate incursions of oil palm plantations (< 20% of the area within a 20-km radius covered by oil palm plantations). The relative resilience of binturongs to habitat degradation could be in part because of behavioural adaptations towards increased nocturnal activity. These results support the notion that key seed dispersers can persist and maintain their ecological function in degraded forests.
Evidence of undercounting: Collecting data on mental illness in Germany (c. 1825-1925)
Authors: Ledebur Sophie 
Published: July 2023

ArgumentCollecting data about people with mental disorders living outside of asylums became a heightened concern from the early nineteenth century onwards. In Germany, so-called “insanity counts” targeted the number and sometimes the type the mentally ill who were living unattended and untreated by professional care throughout the country. An eagerly expressed assumption that the “true” extent of the gathered numbers must be much higher than the surveys could reveal came hand in glove with the emerging task of “managing” insanity and its potential dangers in a modern society. The doorstep of the family home became a crucial site in psychiatrists’ and enumerators’ efforts to register the most sensitive of personal data. This article traces the ever more diligent methods that were employed to obtain the desired information, as well as the hidden agenda of the postulate of missing data itself. It also addresses the profound impact that the presumption of having only incomplete data has had on the practice of counting and surveying, as well as on the understanding of the need for professional monitoring of mental illness.