bluuebunny/crossref_metadata_2025_split huggingface dataset:
Resonance behavior of fractional harmonic oscillator driven by exponentially correlated dichotomous noises
Authors: Tu Zhe , Zhong Yangfan , Yu Tao 
Published: May 2022

Abstract
This paper investigates the resonance behaviors of a fractional-order harmonic oscillator driven by two exponentially correlated dichotomous noises, where the Caputo fractional derivative operator is applied to describe the power-law memory of the system. By using the stochastic averaging method and the Shapiro-Loginov formula, we derive the analytical expression of the output amplitude gain of the system, from which the existence and the correlation of noises are found to be keys for the occurrence of resonance. When either of the noises is absent or they are uncorrelated, the output amplitude gain is zero, indicating that the system is dissipative in this case. The numerical simulation shows that the system has rich resonance behaviors when noises are exponentially correlated. Three types of resonance, that is, the bona fide resonance, the classic stochastic resonance and the generalized stochastic resonance, are observed. And the effects of system parameters on these resonance behaviors are well discussed. Specifically, double-peak resonance and damping-coefficient–induced resonance are observed only in the fractional-order system rather than integer-order system.
Electrocommunication signals and aggressive behavior vary among male morphs in an apteronotid fish,Compsaraia samueli
Authors: Freiler Megan K. , Proffitt Melissa R. , Smith G. Troy 
Published: May 2022

ABSTRACTWithin-species variation in male morphology is common among vertebrates and is often characterized by dramatic differences in behavior and hormonal profiles. Males with divergent morphs also often use communication signals in a status-dependent way. Weakly electric knifefish are an excellent system for studying variation in male morphology and communication and its hormonal control. Knifefish transiently modulate the frequency of their electric organ discharge (EOD) during social encounters to produce chirps and rises. In the knifefish Compsaraia samueli, males vary extensively in jaw length. EODs and their modulations (chirps and rises) have never been investigated in this species, so it is unclear whether jaw length is related to the function of these signals. We used three behavioral assays to analyze EOD modulations in male C. samueli: (1) artificial playbacks, (2) relatively brief, live agonistic dyadic encounters, and (3) long-term overnight recordings. We also measured circulating levels of two androgens, 11-ketotestosterone and testosterone. Chirp structure varied within and across individuals in response to artificial playback, but was unrelated to jaw length. Males with longer jaws were more often dominant in dyadic interactions. Chirps and rises were correlated with and preceded attacks regardless of status, suggesting these signals function in aggression. In longer-term interactions, chirp rate declined after 1 week of pairing, but was unrelated to male morphology. Levels of circulating androgens were low and not predictive of jaw length or EOD signal parameters. These results suggest that communication signals and variation in male morphology are linked to outcomes of non-breeding agonistic contests.
Perceived stress levels in older adults with financial strain are diminished after theater practice
Authors: Matsudaira Izumi , Taki Yasuyuki 
Published: May 2022

Background: Participating in theater has been shown to be useful for reducing cognitive decline in older adults. This study focused on the social inclusion aspect of the performing arts and aimed to examine whether participation in the theater could help prevent dementia in older adults who are vulnerable to social exclusion. Methods: Our participants were 371 community-dwelling older adults who belonged to the Gold Arts Club organized by the Saitama Arts Theatre. The change in perceived stress levels after a month and a half of theater practice were compared between older adults with and without financial strain. Results: It was revealed that older adults with financial strain had a significantly greater reduction in perceived stress levels than those without financial strain after a month and a half of theater practice. Conclusions: Since stress is one of the risk factors for cognitive decline, the results of this study suggest that participation in theater may be an effective way of reducing cognitive decline associated with dementia in the older people who feel strained financially.
Post-industrial context of cassava bagasse and trend of studies towards a sustainable industry: A scoping review – Part I
Authors: Serpa-Fajardo José Gabriel , Hernández-Ramos Elvis Judith , Fernández-Lambert Gregorio , Sandoval-Herazo Luis Carlos , Andrade-Pizarro Ricardo David 
Published: May 2022

Background: The cassava starch industry is recognized as a source of negative externalities caused by the agroindustrial waste ‘cassava bagasse’. Even though options for bioconversion of cassava bagasse have been introduced, it is also true that hundreds of tons of this waste are produced annually with the consequent negative environmental impact. This agroindustrial context highlights the need for further research in technological proposals aimed at lowering the water contained in cassava bagasse. Methods: We report a scoping review of studies from 2010–2021 that mention the uses of cassava bagasse, as well as the technological options that have become effective for drying fruits and vegetables. The method used for selecting articles was based on the Preferred Reporting Items for Systematic Review and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) method. Articles selected were taken from the databases of ScienceDirect, Google Scholar, Scopus and Springer. Results: This review highlights fruit and vegetable osmotic dehydration and drying studies assisted by the combination of emerging technologies of osmotic pressure, ultrasound, and electrical pulses. Studies that take advantage of cassava bagasse have focused on biotechnological products, animal and human food industry, and development of biofilms and biomaterials. Conclusions: In this review, we found 60 studies out of 124 that show the advantages of the residual components of cassava bagasse for the development of new products. These studies do not mention any potential use of bagasse fiber for post-industrial purposes, leaving this end products’ final use/disposal unaddressed. A viable solution is osmotic dehydration and drying assisted with electrical pulse and ultrasound that have been shown to improve the drying efficiency of fruits, vegetables and tubers. This greatly improves the drying efficiency of agro-industrial residues such as husks and bagasse, which in turn, directly impacts its post-industrial use.
IL1B gene variants, but not TNF, CXCL8, IL6 and IL10, modify the course of cystic fibrosis in Polish patients.
Authors: Zakerska-Banaszak Oliwia , Gozdzik-Spychalska Joanna , Gabryel Marcin , Zuraszek Joanna , Skrzypczak-Zielinska Marzena , Slomski Ryszard , Dobrowolska Agnieszka , Piorunek Tomasz , Batura-Gabryel Halina 
Published: May 2022

Background: The main aim of this study was to evaluate whether selected polymorphic variants in genes from the inflammatory pathway can be predictors of pulmonary or digestive manifestation of cystic fibrosis, as well as of severity of lung disease. Materials and methods: Using pyrosequencing and sequencing we have genotyped 12 variants in TNF (rs361525, rs1800629), CXCL8 (rs4073, rs2227306, rs2227307, rs188378669), IL1B (rs16944, rs1143634, rs1142639, rs1143627), IL6 (rs1800795) and IL10 (rs1800896) genes in a cohort of 55 Polish patients with diagnosed cystic fibrosis and controls. In our study group, a pulmonary manifestation of disease revealed 44 of subjects (80%), and digestive symptoms dominated in 11 (20%) of analyzed individuals. Severe lung dysfunction has occurred in 20 (36.4%) of patients. Results: We proved, that two promoter variants of IL1B, rs1143627 (c.-118G > A) and rs16944 (c.-598T > C) are presented significantly more often in patients with severe character of lung disease compared to mild (82.5% vs. 62.8%, p-value 0.030, and 87.5% vs. 64.3%, p-value 0.008, respectively) in cystic fibrosis course. Haplotype AC formed by both changes had also a higher frequency (80%) in patients with severe course compared to the mild character (61.4%) of disease. However, the frequency of promoter variant TNF c.-308C > T (rs1800629) was presented at a significantly lower level in the patient’s group compared to healthy controls (2.7% vs. 15%, p-value 0.001). Furthermore, the presence of methicillin-resistant Staphylococcus aureus significantly correlated with the lower FEV1% in patients (p-value 0.01). Conclusions: Genetic variants, rs1143627 and rs16944, of IL1B are promising candidates as predictors of the severe character of lung disease in Polish patients with cystic fibrosis.
A Machine Learning Approach to Predictive Modelling of Student Performance
Authors: Ng Hu , bin Mohd Azha Azmin Alias , Yap Timothy Tzen Vun , Goh Vik Tor 
Published: May 2022

Background - Many factors affect student performance such as the individual’s background, habits, absenteeism and social activities. Using these factors, corrective actions can be determined to improve their performance. This study looks into the effects of these factors in predicting student performance from a data mining approach. This study presents a data mining approach in identify significant factors and predict student performance, based on two datasets collected from two secondary schools in Portugal. Methods – In this study, two datasets are augmented to increase the sample size by merging them. Following that, data pre-processing is performed and the features are normalized with linear scaling to avoid bias on heavy weighted attributes. The selected features are then assigned into four groups comprising of student background, lifestyle, history of grades and all features. Next, Boruta feature selection is performed to remove irrelevant features. Finally, the classification models of Support Vector Machine (SVM) , Naïve Bayes (NB) , and Multilayer Perceptron (MLP) origins are designed and their performances evaluated. Results - The models were trained and evaluated on an integrated dataset comprising 1044 student records with 33 features, after feature selection. The classification was performed with SVM, NB and MLP with 60-40 and 50-50 train-test splits and 10-fold cross validation. GridSearchCV was applied to perform hyperparameter tuning. The performance metrics were accuracy, precision, recall and F1-Score. SVM obtained the highest accuracy with scores of 77%, 80%, 91% and 90% on background, lifestyle, history of grades and all features respectively in 50-50 train-test splits for binary levels classification . SVM also obtained highest accuracy for five levels classification with 39%, 38%, 73% and 71% for the four categories respectively. The results show that the history of grades form significant influence on the student performance.
DEPRESSIVE DISORDERS IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE IN CONDITIONS OF COMORBIDITY
Authors: Kozlov Evgeny V. , Derevyannich Evgeny V. , Balashova Natalia A. , Yaskevich Roman A. , Moskalenko Olga L. 
Published: May 2022

The purpose of the study. To study the features of depressive disorders in patients with chronic obstructive pulmonary disease (COPD) in conditions of comorbidity with arterial hypertension (AH).
Materials and methods. The study included 92 male patients with COPD. Of these, 63 patients with COPD in combination with hypertension. The diagnosis of COPD verified and the severity assessed in accordance with the GOLD criteria. The CES-D scale used to identify depressive disorders.
Results. It found that men with COPD in conditions of comorbidity with hypertension characterized by statistically significantly higher values of the average depression score on the CES-D scale. In this group of examined people, significantly more people with depression indicators corresponding to a severe degree on the CES-D scale and less often people who do not have depressive disorders. Among men with COPD of the IV st., persons with depression indicators corresponding to a severe degree on the CES-D scale were significantly more common, and persons without depressive disorders were less common.
Conclusion. Among men with COPD in conditions of comorbidity with hypertension, persons with depression indicators corresponding to a severe degree on the CES-D scale are significantly more common, and persons without depressive disorders are less common.
The digital transformation of football clubs based on the example of social media
Authors: Metelski Adam , Leszczyński Marcin 
Published: May 2022

Purpose: Digital transformation has significant growth potential for countries and organizations, and this also applies to sports. One of the examples of digital transformation is the use of social media by football clubs. Their goal is to arouse interest and maintain relationships with as many fans as possible. The article aims to present the significance of social media in football clubs, as well as to identify factors that may affect the number of clubs’ followers.
Design/methodology/approach: The article presents which football clubs are the most popular on social media today, and on the example of FC Barcelona, Juventus F.C., and Paris Saint-Germain F.C. shows how the number of followers has changed in last few years. What's more, on the example of the top Polish football league – Ekstraklasa, it was checked what factors affect the number of clubs’ followers.
Findings: In the analysed clubs, the highest increase in followers was recorded among Instagram users. The study based on Ekstraklasa, showed that there is a significant correlation between sports results and the number of followers. This means that a better position in the league is associated with more followers on social media. The example of the Ekstraklasa also showed that the club's city population is strongly positively correlated with the number of its followers.
Research and practical limitations/implications: The limitation of the study is that it focuses only on football and selected clubs. Accordingly, in some countries or sports may occur different dependencies.
Originality/value: Nowadays, the number of social media followers is an indicator of a club’s popularity and commercial appeal, all of which is directly related to the finances of a club. Therefore, identifying the factors that may affect the number of football clubs’ followers seems to be important from the perspective of the whole professional sport.
Fathering and Poverty
Authors: Tarrant Anna 
Published: May 2022

This monograph reports on pioneering research from the ‘Men, Poverty and Lifetimes of Care’ (Leverhulme Trust, 2014-2018) study. It addresses questions concerning the routine care responsibilities of men in low-income localities and the resources and constraints that affect how they ‘do’ family and care on an everyday basis. Drawing on a mix of ethnographic, photographic and interview data generated with twenty-six men in different generational positions living in a Northern city in England, the relational dynamics of low-income family life are examined. The central thesis is that while policy and lay discussions of low-income men emphasise men’s absence, limited empirical focus on the household and on the role of ‘father’ as a generational identity, serves to obscure the variety of ways in which men in low-income families participate in family life in significant ways, at different times. Advancing the concept of family participation, the book reveals the contexts of significant hardship through which men in different generational positions engage in a range of caring practices. At the same time, austerity has entrenched conditions antithetical to these men’s efforts on behalf of their children and grandchildren. The analyses therefore reveal circumstances when men might be more resourced and capable of taking on care responsibilities, but also where state support may be lacking yet much needed. In a context of social ambivalence about men as carers, men with caring responsibilities remain highly isolated and welfare and market provision for ‘caring masculinities’ is neither being produced nor sustained.
Disciplining the Poor: Welfare Conditionality, Labour Market Activation and Welfare ‘Fraud’
Authors: Kiely Elizabeth , Swirak Katharina 
Published: May 2022

Chapter three focuses on projects of welfare reform, which have gained momentum over the last few decades in different country contexts. This chapter shows how unemployment and poverty are primarily constructed as ‘lifestyle’ problems, to be addressed through employment incentives and the ‘disciplinary turn’ in activation. The chapter takes note that at the same time as projects of welfare reform have gained momentum, governments have concentrated their attention on detecting and clamping down on benefit fraud as a means of identifying the ‘undeserving’ and stoking anti-welfarism. The longstanding history of criminalising the poor is acknowledged, but the particular shape this is taking in recent years across different social and cultural spheres is given consideration. With a focus on recent positive developments in Scotland, the case for a new welfare imaginary is asserted.
Terahertz passive amplification via temporal Talbot effect in metamaterial-based Bragg fibers
Authors: Pepino Vinicius M. , da Mota Achiles F. , Borges Ben-Hur V. , Teixeira Fernando L. 
Published: May 2022

A fully passive terahertz (THz) pulse amplification device is proposed based on leveraging the temporal Talbot effect (TTE) on a highly dispersive silicon-based metamaterial Bragg fiber. To maximize the TTE passive gain, we introduce and explore three different strategies, denoted as coherent pulse addition (CPA), forward Talbot illuminator (FTAI), and backward Talbot illuminator (BTAI). The BTAI strategy allows additional degrees of freedom for controlling the output pulse shape. Moreover, by using a continuous phase profile, we overcome the hurdle of implementing discrete phase gratings in limited time response phase modulators. We explore different pulse shapes and chirped pulses with CPA, and different gain factors with both BTAI and FTAI. Numerical simulation results show a 5.8 dB gain for a 9.8 cm long fiber with the CPA method, a 9.9 dB gain with FTAI (1.37 cm long), and a 8.8 dB gain with BTAI (1.25 cm long). These results indicate the potential of the approaches presented here, which can be used as a springboard for further developments toward high gain passive amplification THz devices.
Surface acoustic wave photonic filters with a single narrow radio-frequency passband in standard silicon on insulator
Authors: Katzman Moshe , Priel Maayan , Shafir Inbar , Kumar Bag Saawan , Munk Dvir , Inbar Naor , Feldberg Moshe , Sharabani Tali , Dokhanian Leroy , Slook Matan , Zadok Avi 
Published: May 2022

Integrated microwave photonic filters are becoming increasingly important for signal processing within advanced wireless and cellular networks. Filters with narrow transmission passbands mandate long time delays, which are difficult to accommodate within photonic circuits. Long delays may be obtained through slow moving acoustic waves instead. Input radio-frequency information can be converted from one optical carrier to another via surface acoustic waves and filtered in the process. However, the transfer functions of previously reported devices consisted of multiple periodic passbands, and the selection of a single transmission band was not possible. In this work, we demonstrate surface acoustic wave, silicon-photonic filters of microwave frequency with a single transmission passband. The filter response consists of up to 32 tap coefficients, and the transmission bandwidth is only 7 MHz. The results extend the capabilities of integrated microwave photonics in the standard silicon-on-insulator platform.
Podoconiosis: Clinical spectrum and microscopic presentations
Authors: Enbiale Wendemagegn , Böer-Auer Almut , Amare Bereket , Verdonck Kristien , Davey Gail , van Griensven Johan , de Vries Henry J. C. 
Published: May 2022

BackgroundPodoconiosis is a skin Neglected Tropical Disease (skin NTD) that causes lymphoedema, and affects barefooted subsistence farmers in some tropical countries. The clinical presentation and histopathologic correlates of podoconiosis have been understudied. Here, we systematically document the clinical and histopathologic spectrum of podoconiosis.MethodsThis is a cross-sectional study in Durbete, Ethiopia from February 2018 to October 2019. Dermatologists performed a patient history, physical examination, filariasis test strip, and skin biopsy for histopathologic examination. The results were summarised and a descriptive statistical analysis and Wilcoxon rank sum test with continuity correction was done.ResultsWe recruited 289 patients for the study, 178 (61.6%) had stage 1 or 2 podoconiosis, and 111(38.4%) stage 3 to 5 podoconiosis. 188 (64.1%) had a family history of podoconiosis. In 251 (86.9%) patients, both legs were affected by podoconiosis and in 38 (13.1%) only one leg was affected. 220 (77.5%) patients had warty lesions, 114 (39.4%) had nodules. The median number of episodes of Acute Dermato-Lymphangio-Adenitis (ADLA) reported by the patients in the last three months was 2 (interquartile range (IQR) 1–4). Increased episodes of ADLA were significantly associated with stage 3–5 podoconiosis (P = 0.002), while burning pain in the feet was more common in stage 1 or 2 podoconiosis. Stage 3–5 disease was histopathologically characterised by epidermal and dermal thickening, verrucous acanthosis, inflammatory cell infiltrates (predominantly lymphoplasmacytic), dilated and ectatic and a reduced number of lymphatic vessels, eccrine ductal hyperplasia, and sclerosis such as thickened collagen bundles.ConclusionWe provide a detailed description of the different clinical patterns, associated clinical findings and the histopathologic spectrum of podoconiosis at different stages of the disease. Our observations should serve as a guide to classifying patients with podoconiosis for prognostic assessment and treatment decision.
Effects of Helicobacter pylori treatment on the incidences of autoimmune diseases and inflammatory bowel disease in patients with diabetes mellitus
Authors: Sheu Nai-Wei , Huang Shu-Heng , Wu Deng-Chyang , Kao John Y. , Lin Kun-Der 
Published: May 2022

Background
Helicobacter pylori infection is known to decrease the incidences of autoimmune diseases and inflammatory bowel disease(IBD). Our aim was investigating the effect of H. pylori treatment in diabetes mellitus(DM) patients.

Methods
Adults with newly-diagnosed H. pylori infection or peptic ulcer disease(PUD) within the general population and DM population were identified from the National Health Insurance Research Database of Taiwan from 2000–2010. 79,181 patients were assigned to the 3 groups: general population with PUD without H. pylori treatment(PUD-HPRx in general population), DM patients with PUD without H. pylori treatment(PUD-HPRx in DM), and DM patients with PUD who received H. pylori treatment(PUD+HPRx in DM).

Results
Higher incidences of autoimmune diseases and IBD were observed in the PUD+HPRx in DM group than in the PUD-HPRx in general population and PUD-HPRx in DM groups (autoimmune diseases = 5.14% vs 3.47% and 3.65%; IBD = 5.60% vs 3.17% and 3.25%; P<0.0001). A lower all-cause mortality was noted in the PUD+HPRx in DM group (HR: 0.937, P<0.001) than in the PUD-HPRx in DM group. Trends of a higher incidence of IBD and a lower mortality in younger patients in the PUD+HPRx in DM group compared with the PUD-HPRx in DM group were noted.

Conclusions
The results revealed that H. pylori treatment increased the incidences of autoimmune diseases and IBD and decreased the all-cause mortality in the DM group with PUD. The effect was more significant in younger patients. This finding assists in realizing the influence of H. pylori treatment in the DM population.