bluuebunny/crossref_metadata_2025_split huggingface dataset:
On the magnetotransport properties and Griffith phase in (La,Gd)1.4 (Ca,Sr)1.6 Mn2 O7 the double layered manganites
Authors: BELGUET Radjia , MAHAMDIOUA Nabil , MERICHE Faiza , DENBRI Fatih , ALONSO Jose A. , MARTINEZ Jose L. , Polat-ALTINTAS Sevgi , TERZIOGLU Cabir 
Published: May 2023

Abstract

The bilayered manganite with formula \({ \text{L}\text{a}}_{1.2}{\text{G}\text{d}}_{0.2}{\text{C}\text{a}}_{1.2}{\text{S}\text{r}}_{0.4}{\text{M}\text{n}}_{2}{\text{O}}_{7}\)has been synthesized by the solid state reaction route with the aim of studying its structural, microstructural, magnetic, electrical and magnetotransport properties. The X-ray diffraction patterns have been analyzed by Rietveld refinement. It revealed that the sample crystallized in a tetragonal structure with the space group I4/mmm and that, as an impurity phase, there were traces of an orthorhombic structure corresponding to a simple perovskite with the space group Pnma. The morphology was examined by using scanning electron microscopy, which revealed that it was porous and granular. The presence and purity of all the constituent elements were confirmed by the Energy Dispersive X-ray spectroscopy investigation. Based on magnetization, the inverse of susceptibility, and hysteresis loop, the magnetic behavior of the compound is discussed in detail. The sample displays a phase transition from ferromagnetic (FM) to paramagnetic (PM) at \({\text{T}}_{\text{C}}\), which was determined to be 290.13 K. Between 305 and 360 K, a Griffith phase (GP) was discovered, indicating the existence ofFM clusters in the paramagnetic domains, and the Griffithtemperature was found to be\(\)339 K. The sample can be thought of as spin-glass-like manganite since a significant divergence wasobserved at low temperatures between the magnetization curves M (T) in the zero-field cooling (ZFC) and field cooling (FC) modes. The spin-glass transition temperature was found to be 261 K. The electrical resistivity under both 0 and 1 T magnetic field exhibits metal-to-insulator transition at \({\text{T}}_{\text{M}\text{I}}\) = 152.98 K. The magnetoresistance was observed to decrease with increasing temperature, peaking at 23% at 11 K under 1 T. Total resistivity in magnetic applied fields of 0T and 1T is composed of residual resistivity, weak localization, and electron-electron combinations below \({\text{T}}_{\text{M}\text{I}}\). Above\({\text{T}}_{\text{M}\text{I}}\) and\({{\theta }}_{\text{D}}/2\) (\({{\theta }}_{\text{D}}\)is Debye temperature), the Mott’s 3D variable range hopping mechanism (3D-VRH) governed the electrical conduction, whereas, the adiabatic small polaron hopping model governed it in the range\({{\theta }}_{\text{D}}/2>\text{T}>300\text{K}\). The density of states, mean hopping energy, and mean hopping distance have all been estimated and thoroughly discussed.
A scoping review to explore the materialisation of health system resilience across three Caribbean countries, Saint Lucia, Dominica, and Haiti: A protocol
Authors: St Louis Patricia , Wautié Alice , Makali Samuel Lwamushi , Radix Carlene , Paul Elisabeth 
Published: May 2023

Abstract
Background The COVID-19 pandemic offers a window of opportunity for building resilient health systems. As such, it is important to use this opportunity to redesign, strengthen, and adapt health systems to meet current population needs. Health systems resilience (HSR) is even more critical in Caribbean countries which face health, environmental, economic shocks and in certain cases political and social upheavals. This study aims to explore the extent to which Haiti, Dominica, and Saint Lucia have developed HSR into their respective contexts.Methods It will consist of a scoping review of available literature on HSR and/or health systems strengthening (HSS) covering Saint Lucia, Dominica, and Haiti, from 2010 to 2023. It will follow the five-point methodological framework proposed by Arksey and O'Malley (2005) and will answer the following question. What approaches, strategies or interventions contribute to building or strengthening HSR in dealing with shocks across these three countries? The perspectives, concepts, dimensions, and definitions from relevant scientific literature will be combined to generate the research equations. The papers identified via PubMed, Scopus, ProQuest, Google Scholar and OpenGrey will then be processed on EndNote and independently filtered by two researchers, reinforced by a third researcher in case of disagreement, according to the PRISMA method adjusted to scoping reviews. Following a deductive-inductive method, the material will be analysed thematically to identify the key approaches, strategies and interventions outlined in the retained materials.Results This scoping review intends to produce a preliminary assessment of how HSR is implemented in the three participating countries. It holds the potential to shed new light on the experiences of these three countries in their efforts to attain resilience in their health systemsConclusions This study might offer insight into the role of stakeholders and processes activated for the achievement of HSR in the Caribbean. In addition, it provides the starting point for the development of a tool to understand and realise HSR, tailored to the three countries.
Multi-Scale Friction Simulation and Experimental Verification of Carbon Nanotube-Reinforced PTFE Composites
Authors: Liang Ce , Shuai Changgeng , Yang Xue , Wang Xin 
Published: May 2023

Abstract
The synergistic analysis of friction properties of carbon nanotube (CNT)-reinforced polymers at the nanoscale and macroscale can help to obtain the intrinsic mechanism of carbon nanotubes to reduce the friction coefficient of polymers, which is important to guide the modification of polymer friction properties. However, the huge gap in spatial scales makes it difficult for molecular dynamics simulations at the nanoscale to predict the friction coefficient of virtual contact interfaces, and conducting a large number of macroscopic experiments to obtain natural frictional laws could be more efficient. This study proposes a multi-scale model to investigate the frictional behavior of copper (Cu)-CNT/polytetrafluoroethylene (PTFE). By using the micromechanics Mori-Tanaka homogenization method as a bridge, the nanoscale simulations of the CNT/PTFE elasticity and frictional behaviour and the macroscopic finite element simulation of the Cu ring-CNT/PTFE block contact are coupled, thus integrating the nanoscale frictional laws of Cu-CNT/PTFE obtained from molecular dynamics simulations into the actual contact interface. The results of multi-scale friction simulations show that the filling of CNTs can effectively improve the elastic and frictional properties of the PTFE matrix, and the degree of improvement is related to the orientation and mass fraction of the CNTs. Under a normal load of 0.5 MPa and a rotating speed of 30 rpm, the friction coefficient continuously decreases (from 0.198 to 0.156) with increasing CNTs mass fraction (0%, 1.25%, 2.5%, 5%). The simulation results were verified by copper ring-CNT/PTFE block friction experiments.
Internalizing and Externalizing Problems in Grade 5 Bangladeshi Children Sample: A Latent Class Tree (LCT) Approach
Authors: Rahman Azizur , Akter Mariam 
Published: May 2023

Abstract
Background
Internalizing and externalizing problems are frequent during middle aged children and are often comorbid. The current study aimed to explore subgroup of children at grade 5 in Bangladesh.
Methods
The well-known Strength and Difficulties Questionnaire was administered to 912 children (48% girls), aged 9–13 years (M = 11.54; SD = 1.12). Latent class analysis (LCA) and Latent Class Tree (LCT) was carried out to make a comparison in identifying risk profiles in children according to their symptoms and explore association between latent classes and gender and having siblings.
Results
Four latent classes were found under behavioral internalizing and externalizing subscales. We have: “no difficulties” (37.51%), “some difficulties” (25.96%), “challenging” (19.73%) and “very challenging” (16.80%) based on traditional LCA. Whereas for LTA, we have: “no difficulties” (35.45%), “some difficulties” (27.64%), “challenging” (15.26%) and “very challenging” (21.65%). Children belonging to “very challenging” group for externalizing problem showed highest scores for hyperactivity/inattention compared to conduct problems. Whereas children belonging to “very challenging” group for internalizing problem showed highest risk on emotional symptoms.
Conclusion
This finding emphasizes the necessity of improving population-level knowledge of Bangladeshi child and youth mental health in the middle years, between early childhood and high school, to avoid future comorbidity and more severe symptoms. In addition, LCT ensures that the output of the LC tree model is compatible with the output of the LCA model suggests Latent Class Tree (LCT) as an alternative approach of LCA.
Post-hospitalisation asthma management in primary care: a retrospective cohort study
Authors: Punyadasa Dhanusha , Simms-Williams Nikita , Adderley Nicola J , Thayakaran Rasiah , Mansur Adel H , Nirantharakumar Krishnarajah , Nagakumar Prasad , Haroon Shamil 
Published: May 2023

Abstract
Background
Clinical guidelines recommend that patients admitted to hospital for asthma attacks are reviewed in primary care following hospital discharge.
Aim
We evaluated post-hospitalisation asthma management in primary care and its associations with patient characteristics.
Design and setting
A retrospective cohort study was performed using English primary care data from the Clinical Practice Research Datalink Aurum database and linked Hospital Episode Statistics Admitted Patient Care data.
Method
Patients with asthma aged ≥5 years who had at least one asthma-related hospitalisation from 1st January 2017 to 31st December 2019 were included. Primary outcome was a composite of any of the following delivered in primary care within 28 days from hospital discharge: asthma review, asthma management plan, asthma medication prescriptions, demonstration of inhaler technique, or smoking cessation counselling. The association between patient characteristics and delivery of clinical care was assessed using logistic regression.
Results
The study included 17,457 patients. 60% had received the primary outcome within 28 days of hospital discharge. 13% received an asthma review, 8% an asthma management plan, 57% an asthma medication, 8% a demonstration of inhaler technique, and 1.2% (of smokers) smoking cessation counselling. This care was less likely to be received by patients from black ethnic minority groups (27-54% relative reduction, depending on age group). By contrast, previous prescriptions of short-acting bronchodilators were associated with an increased likelihood of the primary outcome.
Conclusion
A significant proportion of patients do not receive timely follow-up in primary care following asthma-related hospital admissions, particularly among patients from black ethnic groups.
An Improve Fuzzy Proportional Integral and Derivative Controller for Torque Ripple Reduction in Six-Phase Induction Motor in HEV
Authors: Kumar Vikram , Mishra Ambarisha 
Published: May 2023

Abstract

In this paper, for the reduction of torque ripples in six-phase induction motors, a hybrid controller is proposed that combines a well-defined control strategy for the motor operation. The direct and field-oriented control are hybrids that use a stationary and synchronous reference frame with the stator and rotor as control variables. The control variables concerning both the stator and the rotor are controlled using a novel controller named fractional order fuzzy proportional integral and derivative controller. Due to the high-level inverter, more complex voltage vectors are generated for the control along with the optimized selection of the switching sequence for the inverter an artificial neural network is utilized. From the analysis, only 0.8% of torque ripple and harmonics of 2.45% is seen.
Private sector service workers' well-being before and during the COVID-19 pandemic
Authors: Erkkola Maijaliisa , Walsh Hanna M , Saari Tiina , Lehto Elviira , Rahkonen Ossi , Nevalainen Jaakko 
Published: May 2023

Abstract

Background
Workers attending to the essential functions of society have been most affected by COVID-19, but the well-being of workers outside the health care sector has scarcely been documented. We describe well-being profiles of Finnish blue-collar workers in private sector services and changes in their well-being during the COVID-19 pandemic.
Methods
Altogether 6345 members of the Service Union United provided cross-sectional pre-COVID data in 2019, and 2702 provided follow-up data on health-related indicators in November 2020. Job industry-specific profiles (retail, hospitality, and property maintenance) and change patterns were analysed. Regression models appropriate for different response types with a random intercept and time component were used.
Results
Before COVID-19, the well-being profile − food security, body mass index, alcohol use, smoking, and self-perceived health and adequacy of income − was worse among service workers than the population average and it varied by industry sector. During the first year of COVID-19 self-perceived health deteriorated (OR 0.78, 95% CI 0.70–0.87). The proportion of severely food insecure fell from a third to a quarter (OR for improvement 2.66, 95% CI 2.37–2.99). Slight improvements were observed in heavy episodic drinking, smoking, and self-perceived adequacy of income. Employees in property maintenance were the most vulnerable regarding well-being profile and COVID-19-related changes.
Conclusion
COVID-19 caused divergent changes, including improved food security and deteriorated self-perceived health. Workers with the lowest socioeconomic profile and those facing job uncertainty were the most vulnerable to adverse outcomes. Provision of support to these groups is essential in welfare policy considerations.
Short Video Recommendation based on Multilabel Learning and Multiview Representation
Authors: Carter Valentina , Williams Dario , Johnson Luigi , Clark Kiernan 
Published: May 2023

Abstract
With the emergence of short videos as a new form of media, there has been a surge in the production of short video content by users on various platforms. The popularity of short videos stems from their ability to meet users' needs for diversified and fragmented content consumption. However, the abundance and complexity of short video data create challenges for video recommendation. Short videos contain rich multimodal information in both temporal and spatial dimensions. This feature makes users interested in videos in various forms: interested in the content of a particular shot of a video, interested in the storyline described in a video, interested in the music associated with a video, etc. Existing video recommendation systems only consider a single type of recommended content, and directly recommend videos to users as a whole, which does not meet the deeper needs of users. Short video contains different semantic content, and the results and methods of short video recommendation should not be limited to the overall video recommendation only. In this paper, we take advantage of the consistency of multi-view features for multimedia content understanding to obtain an eigenstable representation from the characteristics of short videos themselves. From the existing studies, video recommendation mainly focuses on the content or metadata of a single modality in the video, but ignores the multimodality of video content and the multi-perspective nature of recommendation strategies. In this paper, we take the advantage of the consistency of multi-modal features for multimedia content understanding to obtain an eigenstable representation, and extract the content of multiple modalities from the video for more comprehensive video content analysis, and fuse the information of each modality to realize a multi-perspective video recommendation method.
Identification of novel, potent, and selective compounds against malaria using Glideosomal Associated Protein 50 as a drug Target
Authors: Agrawal Prakhar , Kumari Surekha , Mohammed Asif , Malhotra Pawan , Sharma Upendra 
Published: May 2023

Abstract

Phylum apicomplexan consists of parasites like Plasmodium and Toxoplasma. These obligate intracellular parasites enter host cells via an energy-dependent process using a specialized machinery called glideosome. In the present study, we used Plasmodium falciparum GAP 50, a glideosome-associated protein as a target to screen 951 different compounds from diverse chemical libraries. Using different screening methods, eight compounds, Hayatinine, Curine, MMV689758 (Bedaquiline), MMV1634402 (Brilacidin), and MMV688271, MMV782353, MMV642550, and USINB4-124-8 were identified which showed promising binding affinity (KD < 75 µM) along with sub-micromolar range anti-parasitic efficacy and selectivity index for malaria parasite > 100 fold. These eight compounds were effective against the chloroquine-resistant PfINDO and artemisinin-resistant, PfCam 3.1R359T strain. Studies on the effect of these compounds at asexual blood stages showed that these eight compounds act differently at different developmental stages, indicating the binding of these compounds to other Plasmodium proteins besides binding to PfGAP50. We further studied the effect of compounds in vivo P. berghei mouse model of malaria. Importantly, orally delivered Bedaquiline (50 mg/Kg b. wt.) showed substantial suppression of parasitemia, and three out of seven mice were cured of the infection. Thus, our study provides new scaffolds for the development of antimalarials that may act at multiple Plasmodium life cycle stages.
Excess Readmission rates for Heart Failure and Pneumonia by Hospital Type
Authors: Brahmbhatt Viraj 
Published: May 2023

Abstract
Improvement of quality care is a major goal for modern healthcare. Quality of care is often measured through readmission rates for specific conditions such as heart failure, pneumonia, total arthroplasty of knee/hip, etc. This data has been used by the Center for Medicare and Medicaid Services (CMS)`to adjust reimbursement rates for hospitals with excessive readmissions. Different hospital operation and management models possess structural differences that may impact the rates of readmission. This study investigated whether there were significant differences in the readmission rates for Academic, Non-Profit, and For-Profit hospitals. The results may be important in reshaping guidelines to assess hospitals based on readmission rates. The average excess readmissions for heart failure were Non-Profit hospitals for 1.0047, For Profit for 1.013, and Academic for .975. The Anova for this set returned a p-value of 1.70284E-05 meaning that the results were statistically significant. As such, Academic hospitals have statistically lower readmission rates for heart failure. The excess readmission rates for pneumonia yielded 1.025 for Non-Profit, 1.024 for For-Profit, and .99 for Academic hospitals. The Anova returned a p-value of 2.4899E-09 which suggests the differences seen are statistically significant. As such, academic hospitals also have a statistically lower rate of pneumonia readmissions. The study possess implications on on consumer decision making in choosing a hospital. In addition to this, algorithms for benchmarking as well as CMS adjustments to reimbursement rates may consider factoring the hospital ownership type.
On the convergence of an inertial proximal algorithm with a Tikhonov regularization term
Authors: Laszlo Szilard Csaba 
Published: May 2023

Abstract
This paper deals with an inertial proximal algorithm that contains a Tikhonov regularization term, in connection to the minimization problem of a convex lower semicontinuous function f. We show that for appropriate Tikhonov regularization parameters the value of the objective function in the sequences generated by our algorithm converges fast (with arbitrary rate) to the global minimum of the objective function and the generated sequences converges weakly to a minimizer of the objective function. We also obtain the fast convergence of the discrete velocities towards zero and some sum estimates. Nevertheless, our main goal is to obtain strong convergence results and also pointwise and sum estimates for the same constellation of the parameters involved. Our analysis reveals that the extrapolation coefficient and the Tikhonov regularization coefficient are strongly correlated and there is a critical setting of the parameters that separates the cases when strong convergence results or weak convergence results can be obtained.
AMS subject classification. 46N10, 65K05, 65K10, 90C25, 90C30
Association Between Glycated Hemoglobin Index and Triglycerides-Glucose Index in a Sample of Non-Diabetic Individuals and Its Relation With Insulin Resistance
Authors: Andrade Luís Jesuino de Oliveira , de Oliveira Luís Matos , de Oliveira Gabriela Correia Matos , Bittencourt Alcina Maria Vinhaes , Neto José Dantas de Melo , Baptista Gustavo Magno 
Published: May 2023

Abstract

Introduction
Studies have shown that elevations of the triglyceride/glucose index (TyG) as well as the glycation of hemoglobin index (HGI) are associated with several complications related to insulin resistance (IR).
Objective
To evaluate the association between HGI and TyG index in a sample of non-diabetic individuals and it’s relation with IR.
Method
A cross-sectional study was conducted with 32 non-diabetic individuals. The variables analyzed included age, gender, body mass index, and laboratory data (triglycerides, glucose, HbA1c, and insulin). We calculated the TyG index, HOMA-IR, and HGI. Simple and multivariate linear regression analyses were also performed, in addition to ANOVA and Pearson's correlation between variables.
Results
The multivariate linear regression analysis of the analyzed sample revealed a significant correlation between the TyG index and HGI, which was confirmed by the T-test. The results indicated a strong positive correlation between the TyG index and HGI, with a Pearson correlation coefficient of 0.98.
Conclusion
The HGI, TyG index and IR showed a significant association in the analyzed sample. This suggests that both indices are highly reliable in measuring IR and glucose metabolism and may be markers of risk independent of FPG, and the other variables evaluated in this study.
Same players, new rules: Redefining the roles of aimP, AimR, and AimX in the arbitrium communication system
Authors: Zamora-Caballero Sara , Brady Aisling , Quiles-Puchalt Nuria , Sol Francisca Gallego del , Mancheño-Bonillo Javier , Felipe-Ruíz Alonso , Meijer Wilfried J J , Penadés José R , Marina Alberto 
Published: May 2023

Abstract

Phages can use a small-molecule communication system, termed arbitrium, to coordinate lysis-lysogeny decisions. It was proposed that this system contains three main players. AimR is a transcriptional activator that promotes expression of aimX, a small RNA which favours the lytic cycle of the phage by inhibiting the phage master repressor using an uncharacterised cis-antisense mechanism. The third player, AimP, is a peptide that accumulates after several rounds of phage infection. When this occurs, AimP binds to AimR inhibiting its function, a process that promotes lysogeny, since aimX will not be transcribed. Here we redefined the role for the main players and identified new key ones, explaining the molecular basis of the arbitrium system. Our results demonstrate that AimR is an antiterminator that eliminates the function of a terminator located between aimP and aimX, which are expressed then as part of a bicistronic operon that initiates in the aimP promoter. Importantly, our genetic, biochemical, and structural analyses also demonstrate that aimX is not a regulatory small RNA but encodes a peptide, AimX, which promotes the lytic cycle of the phage by binding to the second repressor of the arbitrium system, YopN, eliminating its function. Our results reveal the mechanism by which the arbitrium system controls lysis/lysogeny.