Miracle-dz/UniFAR-FTUs huggingface dataset:
Association between per- and polyfluoroalkyl substances and risk of hypertension: a systematic review and meta-analysis

Background Existing evidence indicates that exposure to per- and polyfluoroalkyl substances (PFASs) may increase the risk of hypertension, but the findings are inconsistent. Therefore, we aimed to explore the relationship between PFASs and hypertension through this systematic review and meta-analysis. Methods We searched PubMed, Embase, and the Web of Science databases for articles published in English that examined the relationship between PFASs and hypertension before 13 August 2022. The random effects model was used to aggregate the evaluation using Stata 15.0 for Windows. We also conducted subgroup analyses by region and hypertension definition. In addition, a sensitivity analysis was carried out to determine the robustness of the findings. Results The meta-analysis comprised 15 studies in total with 69,949 individuals. The risk of hypertension was substantially and positively correlated with exposure to perfluorooctane sulfonate (PFOS) (OR = 1.31, 95% CI: 1.14, 1.51), perfluorooctanoic acid (PFOA) (OR = 1.16, 95% CI: 1.07, 1.26), and perfluorohexane sulfonate (PFHxS) (OR = 1.04, 95% CI: 1.00, 1.09). However, perfluorononanoic acid (PFNA) exposure and hypertension were not significantly associated (OR = 1.08, 95% CI: 0.99, 1.17). Conclusion We evaluated the link between PFASs exposure and hypertension and discovered that higher levels of PFOS, PFOA, and PFHxS were correlated with an increased risk of hypertension. However, further high-quality population-based and pathophysiological investigations are required to shed light on the possible mechanism and demonstrate causation because of the considerable variability. Systematic review registration https://www.crd. york.ac. uk/prospero/ PROSPERO, registration number: CRD 42022358142.
Exploring the Relationship between Stochastic Events and Patterns of International Tourism in Kenya

Purpose: The purpose of this research was to investigate the fluctuations in international tourist arrivals in Kenya and identify the underlying factors contributing to these trends. The study aimed to gain a deeper understanding of the impact of stochastic events on tourist arrivals. Methodology: The research focused on international tourist arrivals in Kenya across seven geographical areas. It utilized annual time series data from 1980 to 2020 and examined various variables, including tourism arrivals, terrorism, political instability, conferences, and natural disasters. Descriptive statistics, the Kruskal-Wallis test, Lepage change point detection, and a Vector Autoregressive Model (VAR) with Granger causality tests were employed to analyze the data. Findings: The findings revealed significant fluctuations in preferred destinations, source markets, purpose of visits, and length of stay among international tourists in Kenya over the study period. Major stochastic events were observed to coincide with significant changes in net arrivals, source markets, or destinations. Notably, terrorism, conferences, and the combined impact of all factors had a significant influence on net arrivals. Political instability, pandemics, and natural disasters were also found to affect international tourism arrivals. Recommendations: Based on the results, policymakers are advised to prioritize safety and security measures to mitigate the adverse effects of pandemics and political instability on the tourism industry in Kenya. Additionally, the study recommends the development of targeted marketing strategies to attract resilient source markets. Furthermore, promoting sustainable tourism practices is essential to mitigate the long-term impact of negative events on the industry. These recommendations aim to enhance the resilience and growth of the tourism sector in Kenya.
Multiplications and eigenvalues of tensors via linear maps

ABSTRACT In this paper, we study multiplications and eigenvalues of tensors by using linear maps. By the composition of linear maps, we naturally obtain two multiplications of tensors, which generalize Shao's product, Einstein product and n-mode product etc. Some properties of product of tensors are obtained directly, which don't need proofs, for example the associative law of Shao's product etc. Moreover, we extend eigenvalues of tensors to tensor representations of quivers. By using tensor representations of quivers, eigenvalues of tensors and properties are given.
The Effect of Infrastructure, Investment, and Economic Growth on Community Welfare Through Employment Opportunities in Indonesia

Employment opportunities and community welfare are related, the opportunity for people who work will earn income for the community to fulfill their daily needs which is described by community welfare. This study used secondary data obtained through the Central Bureau of Statistics, then analyzed using path analysis techniques with the help of Eviews 12. The results showed that infrastructure and investment had a negative and insignificant effect on employment opportunities, but economic growth had a significant negative effect on employment opportunities. Infrastructure and investment have a positive and insignificant effect on the welfare of the community, economic growth has a negative effect and does not have a significant effect on the welfare of the community. Opportunity to work has a positive and significant impact on the welfare of maisyairaikait. Infrastructure has no other direct effect on the welfare of the people, while investment and economic growth can have an indirect effect on the people's welfare through the opportunity to work in Indonesia.
Online identification of non-linear dynamic systems by Wiener model using subspace method and neural networks

This paper presents a method for online identification of non-linear dynamic systems using the Wiener model. For the linear dynamic part the subspace identification method with the multivariable output-error state-space algorithm is employed, whereas for the non-linear static part the multi-layer perceptron neural network with Levenberg–Marquardt algorithm is used. The stability and convergence of the proposed method is shown using the Lyapunov direct method and the region solution of the linear matrix inequality (LMI) approach. The proposed method is tested by simulations performed on the continuous stirred tank reactor (CSTR) plant, which is presented by non-linear differential equations. Moreover, the method is applied on the input–output data that are obtained from a practical system of the CSTR plant as well as the pH neutralization plant. The results show significant improvements in online identification of the non-linear dynamic systems compared with the recently reported methods in literature.
Effect of life skills education on socio-emotional functioning of adolescents in urban Puducherry, India: A mixed-methods study

BACKGROUND: We wanted to assess the effect of life skills education (LSE) and regular curriculum on the self-esteem, self-efficacy, adjustment, and psychosocial functioning of students from co-educational government schools, compared to those receiving only the regular curriculum. The secondary objectives were to study the feasibility of such sessions and identify the factors affecting the effectiveness of the sessions. MATERIALS AND METHODS: We conducted a mixed-methods study in government schools of urban Puducherry, India in 2018–2019. The quantitative component was a cluster-randomized trial with activity-based learning methods delivered over 10 sessions in the intervention arm (IA). Differences in outcome variables (self-esteem, self-efficacy, adjustment, psychosocial behavior) between baseline and after intervention in each of the groups were calculated, and the difference-in-differences (DID) technique was applied to account for any natural change in scores over time. Qualitative data were collected through focused group discussions (FGDs) among students and teachers. Analysis was founded on a positivist paradigm with inducto-deductive methodology. RESULTS: The mean (SD) age of 258 participants was 13 (1) years in both arms. The mean (SD) difference between baseline and end-line for IA and control arm (CA) was 0.3 (4.4) and − 0.1 (4.0), for self-esteem (P = 0.38), 0.03 (6.0) and − 1.1 (6.1) for self-efficacy (P = 0.12), and − 0.04 (3.5) and − 0.05 (4.3) for adjustment (P = 0.73), respectively. Similarly, the median (interquartile range [IQR]) difference in the conduct problems scale of the Strengths and Difficulties Questionnaire was − 1 (−2, 1) and 0 (−1, 1) (P < 0.01). Five FGDs revealed multiple positive effects on anger management, conduct, self-awareness, and responsible behavior. All 10 teachers viewed life skills education (LSE) positively. CONCLUSIONS: LSE positively affects adolescents’ socio-emotional functioning, but more extended periods of exposure are needed to demonstrate discernible change. The feasibility of implementation depends on the syllabus and based on health policies.
Specialist and Primary Physicians’ Experiences and Perspectives of Collaboration While Caring for Palliative Patients—A Qualitative Study

Increasing numbers of people living with chronic and life-limiting diseases are actualising a greater need for palliative care. Physicians are an important provider for identifying the need for palliation, and effective follow-up requires physician collaboration across different service levels. This study aimed to explore and describe how physicians in hospitals and municipalities experience their roles and interactions in the care of palliative patients. Pair interviews were performed with seven physicians working in hospitals, primary care and nursing homes in Mid-Norway. Systematic text condensation was used to analyse the data, resulting in three main themes: The boundaries of palliative care, Alternating understandings of roles and Absence of planning. The physicians’ interactions with palliative patients appeared as a fragmented distribution of tasks rather than a real collaboration with shared responsibility. At both levels, the physicians seemed to assume withdrawn roles as a reaction to unclear and unspoken expectations and to avoid interfering with others’ responsibilities. Moreover, their understanding of palliative care and which groups should be included varied. Realising a collaboration between physicians that is beneficial for both patients and physicians, greater openness and real arenas for discussion and decision-making support are required.
A Rate Splitting Multiple Access Interface for Clustered Wireless Federated Learning

Consider a wireless federated learning (WFL) system where the edge devices (EDs) performing local training are closely located in a cluster, such that in addition to their private model updates, a locally common (a.k.a. consensus) model can be computed or selected at each cycle of the learning process. For such a clustered WFL (CWFL) paradigm, we design an uplink (UL) radio access scheme based on the rate splitting multiple access (RSMA) architecture, which is shown not only to significantly reduce the latency of WFL in comparison to systems employing time-domain multiple access (TDMA) and nonorthogonal multiple access (NOMA), but also to be more energy efficient, reaching a lower latency with less power than the latter alternatives. To that end, we exploit the cluster-wide consensus model as the common message used to construct the common component of the RSMA scheme and build an optimization problem aimed at minimizing the latency of each CWFL round by means of optimally allocating the corresponding computation times and uplink transmission durations of each ED, taking into account constraints such as energy consumption, data rates and computational capabilities of each ED. By adequately setting a system parameter referred to as the rate-splitting factor, the formulation also applies to systems employing conventional TDMA or NOMA methods, such that the proposed technique can be seen as a generalization of those approaches, in the context of CWFL schemes. Simulation results on the proposed RSMA-interfaced UL scheme for CWFL are given, both with and without the incorporation of optimal NOMA decoding at the base station (BS), the first of which is found to yield only a mild improvement over the latter, indicating that the proposed approach is in fact the key factor in the overall latency reduction achieved.
How well prepared are the teachers of tomorrow? An examination of prospective mathematics teachers' pedagogical content knowledge

ABSTRACT There is a growing emphasis in the teaching profession on pedagogical content knowledge (PCK) as an important knowledge component. The study reported in this article investigates Turkish prospective mathematics teachers’ mathematics teaching knowledge in the numbers content domain. A series of 10 open-ended scenario-type questions were adopted to challenge 83 prospective mathematics teachers’ knowledge of the learner and presentation of content in the context of PCK. The participants’ responses were analysed by means of rubrics and scoring guides developed by the researchers. The results showed that many of the future teachers performed well in determining what misconceptions students might express in the given scenarios. However, a majority of the participants performed poorly on presentation of content in terms of instructional strategies. In line with these results, the authors offer some suggestions for teacher training programmes.
Impact of health warning labels and calorie labels on selection and purchasing of alcoholic and non‐alcoholic drinks: A randomized controlled trial

Abstract Aims To estimate the impact on selection and actual purchasing of (a) health warning labels (text‐only and image‐and‐text) on alcoholic drinks and (b) calorie labels on alcoholic and non‐alcoholic drinks. Design Parallel‐groups randomised controlled trial. Setting Drinks were selected in a simulated online supermarket, before being purchased in an actual online supermarket. Participants Adults in England and Wales who regularly consumed and purchased beer or wine online (n = 651). Six hundred and eight participants completed the study and were included in the primary analysis. Interventions Participants were randomized to one of six groups in a between‐subjects three [health warning labels (HWLs) (i): image‐and‐text HWL; (ii) text‐only HWL; (iii) no HWL] × 2 (calorie labels: present versus absent) factorial design (n per group 103–113). Measurements The primary outcome measure was the number of alcohol units selected (with intention to purchase); secondary outcomes included alcohol units purchased and calories selected and purchased. There was no time limit for selection. For purchasing, participants were directed to purchase their drinks immediately (although they were allowed up to 2 weeks to do so). Findings There was no evidence of main effects for either (a) HWLs or (b) calorie labels on the number of alcohol units selected (HWLs: F (2,599) = 0.406, P = 0.666; calorie labels: F (1,599) = 0.002, P = 0.961). There was also no evidence of an interaction between HWLs and calorie labels, and no evidence of an overall difference on any secondary outcomes. In pre‐specified subgroup analyses comparing the ‘calorie label only’ group (n = 101) with the ‘no label’ group (n = 104) there was no evidence that calorie labels reduced the number of calories selected (unadjusted means: 1913 calories versus 2203, P = 0.643). Among the 75% of participants who went on to purchase drinks, those in the ‘calorie label only’ group (n = 74) purchased fewer calories than those in the ‘no label’ group (n = 79) (unadjusted means: 1532 versus 2090, P = 0.028). Conclusions There was no evidence that health warning labels reduced the number of alcohol units selected or purchased in an online retail context. There was some evidence suggesting that calorie labels on alcoholic and non‐alcoholic drinks may reduce calories purchased from both types of drinks.
Viscoplastic slender-body theory

The theory of slow viscous flow around a slender body is generalized to the situation where the ambient fluid has a yield stress. The local flow around a cylinder that is moving along or perpendicular to its axis, and rotating, provides a first step in this theory. Unlike for a Newtonian fluid, the nonlinearity associated with the viscoplastic constitutive law precludes one from linearly superposing solutions corresponding to each independent component of motion, and instead demands a full numerical approach to the problem. This is accomplished for the case of a Bingham fluid, along with a consideration of some asymptotic limits in which analytical progress is possible. Since the yield stress of the fluid strongly localizes the flow around the body, the leading-order slender-body approximation is rendered significantly more accurate than the equivalent Newtonian problem. The theory is applied to the sedimentation of inclined cylinders, bent rods and helices, and compared with some experimental data. Finally, the theory is applied to the locomotion of a cylindrical filament driven by helical waves through a viscoplastic fluid.
Retained colistin susceptibility in clinical Acinetobacter baumannii isolates with multiple mutations in pmrCAB and lpxACD operons

The progressive increase in the resistance rates to first- and second-line antibiotics has forced the reuse of colistin as last-line treatment for Acinetobacter baumannii infections, but the emergence of colistin-resistant strains is not uncommon. This has been long linked to acquired chromosomal mutations in the operons pmrCAB and lpxACD. Hence, such mutations are routinely screened in colistin-resistant strains by most studies. The current study was designed to explore the possible existence of pmrCAB and lpxACD mutations in colistin-susceptible isolates. For this purpose, the whole genome sequences of eighteen multi-/extensively drug resistant A. baumannii were generated by Illumina sequencing and screened for missense mutations of the operons pmrCAB and lpxACD. Most of the isolates belonged to global clones (GCs) including GC1 (n=2), GC2 (n=7), GC7 (n=2), GC9 (n=3), and GC11 (n=1). The minimum inhibitory concentrations (MICs) of colistin were determined by the broth microdilution assay. Seventeen isolates were fully susceptible to colistin with MICs ranging from (≤0.125 to 0.5 µg/ml). Interestingly, all colistin-susceptible isolates carried missense mutations in pmrCAB and lpxACD operons with reference to A. baumannii ATCC 19606. Overall, 34 mutations were found. Most substitutions were detected in pmrC (n=20) while no mutations were found in pmrA or lpxA. Notably, the mutation pattern of the two operons was almost conserved among the isolates that belonged to the same sequence type (ST) or GC. This was also confirmed by expanding the analysis to include A. baumannii genomes deposited in public databases. Here, we demonstrated the possible existence of missense mutations in pmrCAB and lpxACD operons in colistin-susceptible isolates, shedding light on the importance of interpreting mutations with reference to colistin-susceptible isolates of the same ST/GC to avoid the misleading impact of the ST/GC-related polymorphism. In turn, this may lead to misinterpretation of mutations and, hence, overlooking the real players in colistin resistance that are yet to be identified.
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine the Utstein Template for Uniform Reporting of Data following Major Trauma: a Joint Revision by Scantem, Tarn, Dgu-tr and Ritg

Background: In 1999, an Utstein Template for Uniform Reporting of Data following Major Trauma was published. Few papers have since been published based on that template, reflecting a lack of international consensus on its feasibility and use. The aim of the present revision was to further develop the Utstein Template, particularly with a major reduction in the number of core data variables and the addition of more precise definitions of data variables. In addition, we wanted to define a set of inclusion and exclusion criteria that will facilitate uniform comparison of trauma cases.
Credit risk and Tunisian bank stability in the Covid-19 wave

Banks are at the core of economic functioning in various countries and are the cause of their development in various fields. In a changing environment, they must deal with certain risks and maintain financial stability as the ultimate objective. The primary objective of this study is to examine the correlation between credit risk and bank stability within the Tunisian banking sector, with a specific focus on understanding the moderating impact of the COVID-19 pandemic. To achieve this, we employ several econometric techniques, including panel unit root and cointegration tests, panel Vector Error Correction Model (VECM), Fully Modified Ordinary Least Squares (FMOLS), and Dynamic Ordinary Least Squares (DOLS). Our empirical analysis relies on a panel dataset that encompasses a comprehensive sample of 8 Tunisian banks over 2000-2020. The results of our analysis unveil a significant negative relationship between credit risk and bank stability, indicating that higher levels of credit risk exert a detrimental effect on the overall stability of Tunisian banks. Furthermore, our study highlights that this adverse impact is further exacerbated during the COVID-19 pandemic, suggesting that the pandemic acts as a moderator. The findings of this study hold substantial implications for policymakers, regulators, and bank managers in Tunisia. They emphasize the critical importance of implementing robust risk management practices to mitigate credit risk and bolster bank stability. Additionally, the research underscores the need to consider the unique challenges introduced by external shocks, such as the COVID-19 pandemic, when assessing the overall stability of the banking system.
Effects of the computational domain size on DNS of Taylor-Couette turbulence

In search for the cheapest but still reliable numerical simulation, a systematic study on the effect of the computational domain ("box") size on direct numerical simulations of Taylor-Couette flow was performed. Four boxes, with varying azimuthal and axial extents were used. The radius ratio between the inner cylinder and the outer cylinder was fixed to $\eta=r_i/r_o=0.909$, and the outer was kept stationary, while the inner rotated at a Reynolds number $Re_i=10^5$. Profiles of mean and fluctuation velocities are compared, as well as autocorrelations and velocity spectra. The smallest box is found to accurately reproduce the torque and mean azimuthal velocity profiles of larger boxes, while having smaller values of the fluctuations than the larger boxes. The axial extent of the box directly reflects on the Taylor-rolls and plays a crucial role on the correlations and spectra. The azimuthal extent is also found to play a significant role, as larger boxes allow for azimuthal wave-like patterns in the Taylor rolls to develop, which affects the statistics in the bulk region. For all boxes studied, the spectra does not reach a box independent maximum.
A Modified Nonmonotone Hestenes–Stiefel Type Conjugate Gradient Methods for Large-Scale Unconstrained Problems

ABSTRACT In this article, by slightly modifying the search direction of the nonmonotone Hestenes–Stiefel method, a variant Hestenes–Stiefel conjugate gradient method is proposed that satisfies the suﬃcient descent condition independent of any line search. This algorithm also possesses information about the gradient value and the function value. We establish the global convergence of our methods without the assumption that the steplength is bounded away from zero. Numerical results illustrate that our method can eﬃciently solve the test problems, and therefore is promising.