bluuebunny/crossref_metadata_2025 huggingface dataset:
The Influence Factor Analysis of Symmetrical Half-Bridge Power Converter through Regression, Rough Set and GM(1,N) Model
Authors: Changchien Shih-Kuen , Wen Kun-Li
Published: January 2022

Analysis of power converter performance has tended to be engineering-oriented, focusing mainly on voltage stability, output power and efficiency improvement. However, there has been little discussion about the weight relations between these factors. In view of the previous inadequacy, this study employs regression, rough set and GM(1,N) to analyze the relations among the factors that affect the converter, with a symmetrical half-bridge power converter serving as an example. The four related affecting factors, including the current conversion ratio, voltage conversion ratio, power conversion ratio and output efficiency, are firstly analyzed and calculated. The respective relative relations between output efficiency and the other three factors are obtained. This research can be referred to by engineers in their design of symmetrical half-bridge power converters.
Mesophilic and Thermophilic Anaerobic Digestion of Wheat Straw in a CSTR System with ‘Synthetic Manure’: Impact of Nickel and Tungsten on Methane Yields, Cell Count, and Microbiome
Authors: Arthur Richard , Antonczyk Sebastian , Off Sandra , Scherer Paul A.
Published: January 2022

Lignocellulosic residues, such as straw, are currently considered as candidates for biogas production. Therefore, straw fermentations were performed to quantitatively estimate methane yields and cell counts, as well as to qualitatively determine the microbiome. Six fully automated, continuously stirred biogas reactors were used: three mesophilic (41 °C) and three thermophilic (58 °C). They were fed every 8 h with milled wheat straw suspension in a defined, buffered salt solution, called ‘synthetic manure’. Total reflection X-ray fluorescence spectrometry analyses showed nickel and tungsten deficiency in the straw suspension. Supplementation of nickel and subsequently tungsten, or with an increasing combined dosage of both elements, resulted in a final concentration of approximately 0.1 mg/L active, dissolved tungsten ions, which caused an increase of the specific methane production, up to 63% under mesophilic and 31% under thermophilic conditions. That is the same optimal range for pure cultures of methanogens or bacteria found in literature. A simultaneous decrease of volatile fatty acids occurred. The Ni/W effect occurred with all three organic loading rates, being 4.5, 7.5, and 9.0 g volatile solids per litre and day, with a concomitant hydraulic retention time of 18, 10, or 8 days, respectively. A maximum specific methane production of 0.254 m3 CH4, under standard temperature and pressure per kg volatile solids (almost 90% degradation), was obtained. After the final supplementation of tungsten, the cell counts of methanogens increased by 300%, while the total microbial cell counts increased by only 3–62%. The mesophilic methanogenic microflora was shifted from the acetotrophic Methanosaeta to the hydrogenotrophic Methanoculleus (85%) by tungsten, whereas the H2-CO2-converter, Methanothermobacter, always dominated in the thermophilic fermenters.
What Is the Most Effective Technique for Bonding Brackets on Ceramic—A Systematic Review and Meta-Analysis
Authors: Francisco Inês , Travassos Raquel , Nunes Catarina , Ribeiro Madalena , Marques Filipa , Pereira Flávia , Marto Carlos Miguel , Carrilho Eunice , Oliveiros Bárbara , Paula Anabela Baptista , Vale Francisco
Published: January 2022

Background: There has been an increase in demand for orthodontic treatment within the adult population, who likely receive restorative treatments using ceramic structures. The current state of the art regarding the most effective method to achieve an appropriate bond strength of brackets on ceramic surfaces isn’t consensual. This systematic review aims to compare the available surface treatments to ceramics and determine the one that allows to obtain the best bond strength. Methods: This systematic review followed the PRISMA guidelines and the PICO methodology was used, with the question “What is the most effective technique for bonding brackets on ceramic crowns or veneers?”. The research was carried out in PubMed, Web of Science, Embase and Cochrane Library databases. In vitro and ex vivo studies were included. The methodological quality was evaluated using the guidelines for reporting of preclinical studies on dental materials by Faggion Jr. Results: A total of 655 articles searched in various databases were initially scrutinized. Sevety one articles were chosen for quality analysis. The risk of bias was considered medium to high in most studies. The use of hydrofluoric acid (HF), silane and laser afforded the overall best results. HF and HF plus laser achieved significantly highest bond strength scores in felsdphatic porcelain, while laser was the best treatment in lithium disilicate ceramics. Conclusions: The most effective technique for bonding brackets on ceramic is dependent on the type of ceramic.
Nanomedicine in Clinical Photodynamic Therapy for the Treatment of Brain Tumors
Authors: Kim Hyung Shik , Lee Dong Yun
Published: January 2022

The current treatment for malignant brain tumors includes surgical resection, radiotherapy, and chemotherapy. Nevertheless, the survival rate for patients with glioblastoma multiforme (GBM) with a high grade of malignancy is less than one year. From a clinical point of view, effective treatment of GBM is limited by several challenges. First, the anatomical complexity of the brain influences the extent of resection because a fine balance must be struck between maximal removal of malignant tissue and minimal surgical risk. Second, the central nervous system has a distinct microenvironment that is protected by the blood–brain barrier, restricting systemically delivered drugs from accessing the brain. Additionally, GBM is characterized by high intra-tumor and inter-tumor heterogeneity at cellular and histological levels. This peculiarity of GBM-constituent tissues induces different responses to therapeutic agents, leading to failure of targeted therapies. Unlike surgical resection and radiotherapy, photodynamic therapy (PDT) can treat micro-invasive areas while protecting sensitive brain regions. PDT involves photoactivation of photosensitizers (PSs) that are selectively incorporated into tumor cells. Photo-irradiation activates the PS by transfer of energy, resulting in production of reactive oxygen species to induce cell death. Clinical outcomes of PDT-treated GBM can be advanced in terms of nanomedicine. This review discusses clinical PDT applications of nanomedicine for the treatment of GBM.
USA and Portuguese Young Adolescents’ Perceived Qualities and Satisfaction in Their Relationships with Mothers, Fathers and Best-Friends
Authors: Guedes Maryse , Ribeiro Olívia , Freitas Miguel , Rubin Kenneth H. , Santos António J.
Published: January 2022

Background: Few researchers have examined young adolescents’ perceived qualities and satisfaction in their relationships with their mothers, fathers and best friends simultaneously, using a cross-cultural perspective. This study aimed to compare the perceived qualities and satisfaction of USA and Portuguese adolescents in their relationships with their parents and best friends and to examine the influence of perceived relationship qualities on the satisfaction of young adolescents with their close relationships. Methods: The sample consisted of 347 USA adolescents (170 boys, 177 girls) and 360 Portuguese adolescents (176 boys, 184 girls) who completed the Network of Relationships Inventory Social Provision Version to assess perceived support, negativity, power balance and satisfaction in their relationships with their mothers, fathers and same-sex best friends. Results: Adolescents from both countries perceived their relationships with parents to be more negative and imbalanced in power than their relationships with friends, but the magnitude of differences was greater in the USA. Furthermore, USA adolescents reported higher satisfaction in their relationships with friends than in their relationships with parents. Country differences in the concomitants of relationship satisfaction were found. Conclusions: These findings support the notion that young adolescents’ perceived qualities and satisfaction in close relationships may differ depending on cultural norms.
Adverse Childhood Experiences Are Associated with Reduced Psychological Resilience in Youth: A Systematic Review and Meta-Analysis
Authors: Morgan Cyleen A. , Chang Yun-Hsuan , Choy Olivia , Tsai Meng-Che , Hsieh Shulan
Published: January 2022

Background: Adverse childhood experiences (ACEs) are presumed to influence internalizing and externalizing behaviors that can significantly debilitate long-term biopsychological development in individuals. Psychological resilience has been shown to effectively mediate the relationship between ACEs and negative health outcomes since individuals with low levels of resilience may have difficulty with bouncing back from toxic exposure to ACEs. Thus, the present systematic review and meta-analysis was aimed toward synthesizing current knowledge of the relationship between ACEs and psychological resilience in youths. Methods: A combination of key words relevant to the present study was searched on the PubMed, EMBASE, Scopus, Cochrane, and Google Scholar databases. The results were restricted to English publications and human studies, with subjects ranging between the age of 0 to 35 years. Effect-size measures inclusive of pooled correlation coefficients for correlation analyses and pooled odds ratios for regression analyses, respectively, were calculated using random-effect models to determine the relationship between ACEs and psychological resilience. Results: The searches identified 85 potentially relevant studies. Among them, 76 were excluded due to limited access, irrelevant data, and the fact that the variables of interest were not explicitly measured or disclosed, leaving a final total of nine studies considered valid for the meta-analysis. Findings from correlational meta-analysis (n = 6) revealed a significantly negative association between ACEs and resilience (β = −0.120 [−0.196, −0.043]). The meta-analysis of the studies (n = 3) reporting dichotomous outcomes (ACE ≥ 1 vs. no ACE) indicated that subjects who experienced an ACE were 63% less likely to display high resilience, in comparison to subjects without such experiences. Conclusion: Our results support a negative association between ACEs and psychological resilience and highlight the multiple dimensions that constitute resilience in an ACE-exposure context. These findings may be particularly useful to policy makers and healthcare institutions in terms of helping them devise effective medical interventions and community outreach programs intended to develop resilience in youths, thus reducing health-risk behaviors and negative health outcomes.
Meckel’s Diverticulum in Children: A Monocentric Experience and Mini-Review of Literature
Authors: Nissen Matthias , Sander Volker , Rogge Phillip , Alrefai Mohamad , Tröbs Ralf-Bodo
Published: January 2022

Vitelline duct anomalies (VDA, including Meckel’s diverticulum (MD)) result from failed embryologic obliteration. This study aimed for characteristics in symptomatic versus asymptomatic VDA, analyzing clinico-laboratory data from 73 children, aged 1 day to 17 years, treated at a tertiary Pediatric Surgery Institution from 2002–2017. A male preponderance was obtained (ratio 3.6:1). MD accounted for 85% of VDA. Incidence of symptomatic VDA decreased with older age. Leading symptoms were intestinal obstruction and hemorrhage. Mucosal heterotopia (present in 39% of symptomatic MD) was associated with anemia and lowered CRP-levels. On ROC-analysis, hemoglobin < 8.6 g/dL, CRP < 0.6 mg/dL and MD distance to ileocecal valve >40 cm were predictors of ectopic tissue in symptomatic MD. Our data confirmed known characteristics as male preponderance, declined incidence of symptomatic cases with age and predominance of gastric ectopia in symptomatic MD. Moreover, anemia and prolonged distance of MD to ileocecal valve were predictors of ectopic mucosa in symptomatic MD.
Malignant Peripheral Nerve Sheath Tumors—A Comprehensive Review of Pathophysiology, Diagnosis, and Multidisciplinary Management
Authors: Knight Samantha W. E. , Knight Tristan E. , Santiago Teresa , Murphy Andrew J. , Abdelhafeez Abdelhafeez H.
Published: January 2022

Malignant peripheral nerve sheath tumors (MPNSTs) are aggressive soft tissue sarcomas (STS) with nerve sheath differentiation and a tendency to metastasize. Although occurring at an incidence of 0.001% in the general population, they are relatively common in individuals with neurofibromatosis type 1 (NF1), for whom the lifetime risk approaches 10%. The staging of MPNSTs is complicated and requires close multi-disciplinary collaboration. Their primary management is most often surgical in nature, with non-surgical modalities playing a supportive, necessary role, particularly in metastatic, invasive, or widespread disease. We, therefore, sought to provide a comprehensive review of the relevant literature describing the characteristics of these tumors, their pathophysiology and risk factors, their diagnosis, and their multi-disciplinary treatment. A close partnership between surgical and medical oncologists is therefore necessary. Advances in the molecular characterization of these tumors have also begun to allow the integration of targeted RAS/RAF/MEK/ERK pathway inhibitors into MPNST management.
Neurofibromatosis in Children: Actually and Perspectives
Authors: Sur Maria Lucia , Armat Ionel , Sur Genel , Pop Diana-Cristina , Samasca Gabriel , Lupan Iulia , Timis Teodora-Larisa , Florian Ioan-Alexandru , Sur Daniel
Published: January 2022

The three types of neurofibromatosis, namely type 1, type 2, and schwannomatosis, are generally associated with various benign tumors affecting the skin and the nervous system. On rare occasions, especially in patients with neurofibromatosis type 1 (NF1), malignant neoplasms may also be present, several of them possessing a more aggressive course than in individuals without this syndrome. As such, a clear delineation between the three variants of neurofibromatosis is crucial to establish the correct diagnosis and management, as well as predict the neoplasm-related outcomes. Neurofibromin, the principal product of the NF1 gene, is a potent inhibitor of cellular proliferation, having been linked to several key signaling pathways involved in tumor growth. Therefore, it may provide a useful therapeutic target for tumor management in these patients. In this article, we want to present the association between deficiency of neurofibromin and the consequences of the lack of this protein leading to different kinds of malignant tumors. The therapy is still uncertain and most therapeutic options are in development or clinical trials.
Parental Evaluation of the Socio-Personal Adjustment of High Ability Students in a Cluster Grouping Program
Authors: Valadez María de los Dolores , Betancourt Julián , Aguirre Triana , Rodríguez-Naveiras Elena , Borges África
Published: January 2022

High ability students have differential cognitive characteristics that require a specific educational response to develop their full potential. Cluster ability grouping is one of the available approaches to respond to their training. One of the main criticisms of this teaching method, also supported by the big-fish-little-pond effect (BFLPE), is that high ability students may show a decrease in their self-concept. The aim of this research is to present the evaluation carried out by parents of primary school high ability students on the effect of an educational cluster grouping program on their personal and social adjustment, comparing these variables before the beginning of the school year and at the end of it. Approximately 100 students’ parents of the Educational Centre for Highly Ability Pupils participated in the evaluation. The instrument used for the evaluation was the Socialization Battery (BAS-2) for parents. The results showed that parents observed some improvements, either due to an increase in the scales measuring positive socialization variables or a decrease in the scales measuring negative socialization variables. The most substantial improvements are found in the second and third grades. We conclude that the results do not support the big-fish-little-pond effect (BFLPE).
Kawasaki Shock Syndrome with Initial Presentation as Neck lymphadenitis: A Case Report
Authors: Cheng Yi-Ting , Lee Yu-Shin , Lin Jainn-Jim , Chung Hung-Tao , Huang Yhu-Chering , Su Kuan-Wen
Published: January 2022

Kawasaki disease (KD) is an acute systemic vasculitis of unknown cause that mainly affects infants and children and can result in coronary artery complications if left untreated. A small subset of KD patients with fever and cervical lymphadenitis has been reported as node-first-presenting KD (NFKD). This type of KD commonly affects the older pediatric population with a more intense inflammatory process. Considering its unusual initial presentation, a delay in diagnosis and treatment increases the risk of coronary artery complications. Herein, we report the case of a 9-year-old female with fever and neck mass that rapidly deteriorated to shock status. A diagnosis of KD was made after the signs and symptoms fulfilled the principal diagnostic criteria. The patient’s heart failure and blood pressure improved dramatically after a single dose of intravenous immunoglobulin. This case reminds us that NFKD could be the initial manifestation of KDSS, which is a potentially fatal condition. We review the literature to identify the overlapping characteristics of NFKD and KDSS, and to highlight the importance of early recognition of atypical KD regardless of age. We conclude that unusually high C-reactive protein, neutrophilia, and thrombocytopenia serve as supplemental laboratory indicators for early identification of KDSS in patients with NFKD.
Biophysical and Subject-Based Assessment of the Effects of Topical Moisturizer Usage on Xerotic Skin—Part II: Visioscan® VC 20plus Imaging
Authors: Stettler Hans , Crowther Jonathan , Boxshall Alison , Bielfeldt Stephan , Lu Bailu , de Salvo Raffaella , Trapp Sonja , Blenkiron Peter
Published: January 2022

As new biophysical methods become available to the skin researcher it is important to understand the type of information that they are capable of measuring, and how it relates to consumer perception of topical moisturizing products. The aim of the work presented here was to understand what dry skin imaging can reveal about the skin and subject feedback from the use of a topical moisturizing product and how it relates to the consumer usage experience of a topical product. Images from a dry skin camera—the Visioscan® VC 20plus—during 3 weeks in vivo usage of a topical moisturizing product were analyzed. Subject feedback regarding their skin condition was also collected. Strong statistical improvements (p < 0.05) were observed for a wide range of skin parameters derived from the Visioscan® VC 20plus. Skin scaliness and smoothness and parameters associated with skin health and appearance (surface, energy, contrast, homogeneity) improved as a result of topical product usage. Subjects reported their skin to feel less dry, to be smoother, and more supple and to look and feel healthier after product usage. The length of time until they felt the need to re-apply the product increased during the study.
Biophysical and Subject-Based Assessment of the Effects of Topical Moisturizer Usage on Xerotic Skin—Part I: EpsilonTM 2D Skin Hydration
Authors: Stettler Hans , Crowther Jonathan , Boxshall Alison , Bielfeldt Stephan , Lu Bailu , de Salvo Raffaella , Trapp Sonja , Blenkiron Peter
Published: January 2022

As new biophysical methods become available to the skin researcher, it is important to understand the type of information that they are capable of measuring, and how it relates to consumer perception of topical moisturizing products. This work was aimed at understanding how two-dimensional (2D) skin hydration mapping can be used to describe skin properties beyond the traditional ‘single number’ approach to skin hydration. Two-dimensional skin hydration measurement data were collected at baseline and after 1 week of in vivo usage of a topical moisturizing product. In addition, subject feedback regarding their skin condition obtained during the study was collected and assessed. Dividing the 2D hydration measurement device images into zones of different electrical permittivity scores enabled analysis of different aspects of the skin compared with traditional electrical skin hydration measurements. Improvement in skin flexibility as a result of use of the topical test product was demonstrated. Complete description of the skin’s hydration state through the creation of hydration histograms to describe its electrical characteristics was performed. Subject feedback data showed improvements in aspects of skin assessed using 2D hydration measurement.
Topology-Based Routing Protocols and Mobility Models for Flying Ad Hoc Networks: A Contemporary Review and Future Research Directions
Authors: Wheeb Ali H. , Nordin Rosdiadee , Samah Asma’ Abu , Alsharif Mohammed H. , Khan Muhammad Asghar
Published: January 2022

Telecommunications among unmanned aerial vehicles (UAVs) have emerged recently due to rapid improvements in wireless technology, low-cost equipment, advancement in networking communication techniques, and demand from various industries that seek to leverage aerial data to improve their business and operations. As such, UAVs have started to become extremely prevalent for a variety of civilian, commercial, and military uses over the past few years. UAVs form a flying ad hoc network (FANET) as they communicate and collaborate wirelessly. FANETs may be utilized to quickly complete complex operations. FANETs are frequently deployed in three dimensions, with a mobility model determined by the work they are to do, and hence differ between vehicular ad hoc networks (VANETs) and mobile ad hoc networks (MANETs) in terms of features and attributes. Furthermore, different flight constraints and the high dynamic topology of FANETs make the design of routing protocols difficult. This paper presents a comprehensive review covering the UAV network, the several communication links, the routing protocols, the mobility models, the important research issues, and simulation software dedicated to FANETs. A topology-based routing protocol specialized to FANETs is discussed in-depth, with detailed categorization, descriptions, and qualitatively compared analyses. In addition, the paper demonstrates open research topics and future challenge issues that need to be resolved by the researchers, before UAVs communications are expected to become a reality and practical in the industry.
Chromatin Unlimited: An Evolutionary View of Chromatin
Authors: Hiraoka Yasushi
Published: January 2022

Chromatin is a fundamental and highly conserved structure that carries genetic and epigenetic information in eukaryotic cells [...]
Optimization of Propagation Medium for Enhanced Polyhydroxyalkanoate Production by Pseudomonas oleovorans
Authors: Chmelová Daniela , Legerská Barbora , Ondrejovič Miroslav , Miertuš Stanislav
Published: January 2022

Polyhydroxyalkanoates (PHAs) represent a promising alternative to commercially used petroleum-based plastics. Pseudomonas oleovorans is a natural producer of medium-chain-length PHA (mcl-PHA) under cultivation conditions with nitrogen limitation and carbon excess. Two-step cultivation appears to be an efficient but more expensive method of PHA production. Therefore, the aim of this work was to prepare a minimal synthetic medium for maximum biomass yield and to optimize selected independent variables by response surface methodology (RSM). The highest biomass yield (1.71 ± 0.04 g/L) was achieved in the optimized medium containing 8.4 g/L glucose, 5.7 g/L sodium ammonium phosphate and 35.4 mM phosphate buffer. Under these conditions, both carbon and nitrogen sources were completely consumed after 48 h of the cultivation and the biomass yield was 1.7-fold higher than in the conventional medium recommended by the literature. This approach demonstrates the possibility of using two-stage PHA cultivation to obtain the maximum amount of biomass and PHA.
Kinetic Study of Fungal Growth of Several Tanninolytic Strains Using Coffee Pulp Procyanidins
Authors: Valencia-Hernández Leidy Johana , Wong-Paz Jorge E. , Ascacio-Valdés Juan Alberto , Contreras-Esquivel Juan Carlos , Chávez-González Mónica L. , Martínez-Pérez Alaín , Castillo-Olvera Guillermo , Aguilar Cristóbal N.
Published: January 2022

Procyanidins are bioactive molecules with industrial and pharmaceutical relevance, they are present in recalcitrant agro-industrial wastes that are difficult to degrade. In this study, we evaluated the potential consumption of procyanidins from Aspergillus niger and Trichoderma harzianum strains in submerged fermentations. For this purpose, a culture medium containing salts, glucose, and procyanidins was formulated, where procyanidins were added to the medium after the near-total consumption of glucose. The submerged cultures were carried out in amber flasks at 30 °C and 120 rpm. The addition of procyanidins to the culture medium increased the formation of micellar biomass for all the strains used. The use of glucose affected the growth of A. niger GH1 and A. niger HS1, however, in these assays, a total consumption of procyanidins was obtained. These results show that the consumption of procyanidins by fungal strains in submerged fermentations was influenced by the pH, the use of glucose as the first source of carbon, and the delayed addition of procyanidins to the medium. The study showed that A. niger and T. harzianum strains can be used as a natural strategy for the consumption or removal of procyanidins present in recalcitrant residues of risk to the environment and human health.
Numerical Solutions of Space-Fractional Advection–Diffusion–Reaction Equations
Authors: Salomoni Valentina Anna Lia , De Marchi Nico
Published: January 2022

Background: solute transport in highly heterogeneous media and even neutron diffusion in nuclear environments are among the numerous applications of fractional differential equations (FDEs), being demonstrated by field experiments that solute concentration profiles exhibit anomalous non-Fickian growth rates and so-called “heavy tails”. Methods: a nonlinear-coupled 3D fractional hydro-mechanical model accounting for anomalous diffusion (FD) and advection–dispersion (FAD) for solute flux is described, accounting for a Riesz derivative treated through the Grünwald–Letnikow definition. Results: a long-tailed solute contaminant distribution is displayed due to the variation of flow velocity in both time and distance. Conclusions: a finite difference approximation is proposed to solve the problem in 1D domains, and subsequently, two scenarios are considered for numerical computations.
Novel Analytical Technique to Find Closed Form Solutions of Time Fractional Partial Differential Equations
Authors: Shakeel Muhammad , Shah Nehad , Chung Jae
Published: January 2022

In this article, a new method for obtaining closed-form solutions of the simplified modified Camassa-Holm (MCH) equation, a nonlinear fractional partial differential equation, is suggested. The modified Riemann-Liouville fractional derivative and the wave transformation are used to convert the fractional order partial differential equation into an integer order ordinary differential equation. Using the novel (G′/G2)-expansion method, several exact solutions with extra free parameters are found in the form of hyperbolic, trigonometric, and rational function solutions. When parameters are given appropriate values along with distinct values of fractional order α travelling wave solutions such as singular periodic waves, singular kink wave soliton solutions are formed which are forms of soliton solutions. Also, the solutions obtained by the proposed method depend on the value of the arbitrary parameters H. Previous results are re-derived when parameters are given special values. Furthermore, for numerical presentations in the form of 3D and 2D graphics, the commercial software Mathematica 10 is incorporated. The method is accurately depicted, and it provides extra general exact solutions.
Solvability of Some Nonlocal Fractional Boundary Value Problems at Resonance in ℝn
Authors: Feng Yizhe , Bai Zhanbing
Published: January 2022

In this paper, the solvability of a system of nonlinear Caputo fractional differential equations at resonance is considered. The interesting point is that the state variable x∈Rn and the effect of the coefficient matrices matrices B and C of boundary value conditions on the solvability of the problem are systematically discussed. By using Mawhin coincidence degree theory, some sufficient conditions for the solvability of the problem are obtained.
Recent Advances and Applications of Spiral Dynamics Optimization Algorithm: A Review
Authors: Omar Madiah Binti , Bingi Kishore , Prusty B Rajanarayan , Ibrahim Rosdiazli
Published: January 2022

This paper comprehensively reviews the spiral dynamics optimization (SDO) algorithm and investigates its characteristics. SDO algorithm is one of the most straightforward physics-based optimization algorithms and is successfully applied in various broad fields. This paper describes the recent advances of the SDO algorithm, including its adaptive, improved, and hybrid approaches. The growth of the SDO algorithm and its application in various areas, theoretical analysis, and comparison with its preceding and other algorithms are also described in detail. A detailed description of different spiral paths, their characteristics, and the application of these spiral approaches in developing and improving other optimization algorithms are comprehensively presented. The review concludes the current works on the SDO algorithm, highlighting its shortcomings and suggesting possible future research perspectives.
The Influence of Cannabis and Alcohol Use on Sexuality: An Observational Study in Young People (18–30 Years)
Authors: Roman Pablo , Ortiz-Rodriguez Ana , Romero-Lopez Ana , Rodriguez-Arrastia Miguel , Ropero-Padilla Carmen , Sanchez-Labraca Nuria , Rueda-Ruzafa Lola
Published: January 2022

The consumption of cannabis and alcohol results in a variety of effects on the psychic functions of young users. Notwithstanding their widespread and prevalent use, the impact of these drugs on sexual health remains unknown. Thus, the aim of this study is to analyse the influence of alcohol and cannabis consumption on sexual function in young people. An observational study was conducted in 274 participants aged 18–30 years. The following selection tools were used: Alcohol Use Disorders Identification Test, Cannabis Abuse Screening Test (CAST), and Changes in Sexual Functioning Questionnaire Short-Form. Participants who were at high risk of having cannabis-related problems performed better on the CAST concerning sexual function, arousal, and orgasm. Participants at high risk had higher arousal and orgasm scores than those who were not at risk for cannabis problems. Improvements in sexual function were found between people who were at high risk of having alcohol problems and those who were not at risk. Sexual function in young people who use cannabis and alcohol more frequently was shown to be better than in those who do not use either, highlighting the need for more information aimed at the young population.
Relationship between Prosocial Behaviours and Addiction Problems: A Systematic Review
Authors: Esparza-Reig Javier , Martí-Vilar Manuel , Merino-Soto César , García-Casique Alfredo
Published: January 2022

The relationship of addiction problems with other pathologies or with different problematic factors has often been studied by psychology. Positive psychology is also currently approaching to these problems and their relationship with positive factors, such as prosocial behaviours. The purpose of this research is to carry out a systematic review of the scientific literature that has studied this relationship from 1900 to 2020. After the screening process with the inclusion and exclusion criteria, a total of 15 articles were selected. The main characteristics found in this relationship and the problems or limitations of investigations that have found relationships other than the mainstream, which show a negative relationship between prosocial behaviours and addiction problems, are discussed.
Effects of Exercise in Improving Cardiometabolic Risk Factors in Overweight Children: A Systematic Review and Meta-Analysis
Authors: Busnatu Stefan Sebastian , Serbanoiu Liviu Ionut , Lacraru Andreea Elena , Andrei Catalina Liliana , Jercalau Cosmina Elena , Stoian Marilena , Stoian Anca
Published: January 2022

This meta-analysis aims to evaluate the effects of exercise in improving cardiometabolic risk factors in overweight children and adolescents until the adolescent age, which is 18 years. A systemic search was conducted using the electronic databases PubMed/Medline, Cochrane Library, and Google Scholar, from inception to 29 June 2021. All statistical analyses were conducted in Review Manager 5.4.1. All studies meeting the inclusion criteria were selected. A random-effect model was used to pool the studies, and the results are reported in the odds ratio (OR) and corresponding 95% Confidence interval (CI). Twelve randomized control trials were selected for meta-analysis. Significant results were obtained for BMI in children after the interventions (0.38 95% CI 0.14, 0.62; p = 0.002; I2 = 65%). LDL level was also found significantly reduced (0.41 95% CI 0.01, 0.82; p = 0.05; I2 = 83%). Other factors such as HDL level, blood pressure, blood glucose level, body weight, and waist circumference were also analyzed. We found that exercise interventions significantly improved several cardiometabolic risk factors such as BMI, LDL level, BP, and blood glucose level. However, no significant effect on HDL concentration, waist circumference, and body weight were found. Long-term interventions are needed to attain improvement in all cardiometabolic risk factors.
Using Design Thinking Method in Academic Advising: A Case Study in a College of Pharmacy in Saudi Arabia
Authors: Almaghaslah Dalia , Alsayari Abdulrhman
Published: January 2022

Purpose: The current study was conducted to evaluate academic advising services in a pharmacy college in Saudi Arabia. This will result in developing solutions to overcome the identified challenges. Methods: Design thinking method uses five steps: empathising, defining, ideating, prototypes and testing. Results: Several issues were identified with students: limited awareness of academic rules and regulations; work-family life imbalance; lack of trust in academic advising and emotional support; unfamiliarity with different learning strategies; and lack of social life at the university. Discussion and conclusion: This study provides a model for enhancing students’ experiences with academic advising. It suggested several prototypes that have proven to be effective in enhancing students’ experiences in university life and how to overcome challenges. The prototypes include a peer academic advising club, personal development workshop and a series of lectures on college rules and regulations.
Environmental Determinates of Distribution for Dragonfly Nymphs (Odonata: Anisoptera) in Urban and Non-Urban East Texas Streams, USA
Authors: Bowles David E. , Kleinsasser Leroy J.
Published: January 2022

We collected environmental and habitat data for nymphs of 12 dragonfly species (Odonata: Anisoptera) from 91 stream sites throughout eastern Texas, including urban and non-urban locations. Understanding the relationship of dragonflies to habitat structure and other environmental variables is crucial for the purpose of conserving these insects and better using them as predictive tools for water quality assessments, and refining tolerance values. The objectives of this study were to determine the key environmental variables influencing the diversity and distribution of dragonflies in eastern Texas streams, and further determine if differences in those factors could be observed between urban and nonurban sites. We collected samples separately from benthic habitats and woody snag habitats. Significantly fewer sites were observed to have dragonfly species on snag habitat (mean = 1.25) compared to benthic samples (mean = 14.67) (t-test, p = 0.001). The number of dragonfly species collected among non-urban streams (mean = 9.83) was not significantly different than urban streams (mean = 6.08; t-test, p = 0.07). Detrended correspondence analysis of benthic and snag habitat data collected from non-urban and urban locations showed that most of the species are oriented most closely to benthic habitats in non-urban streams. Snag habitat was shown to be poorly ordinated for all of the species. A canonical correspondence analysis of 29 water quality and habitat variables as environmental determinants of dragonfly diversity and distribution showed that distributional relationships among species are complex and often described by multiple environmental factors.
Drivers to Obesity—A Study of the Association between Time Spent Commuting Daily and Obesity in the Nepean Blue Mountains Area
Authors: Parise Ivan , Abbott Penelope , Trankle Steven
Published: January 2022

Obesity has become a public health challenge in every country on this planet, with a substantial contribution to global mortality and morbidity. Studies of the built environment have shown some promise in understanding the drivers of this obesity pandemic. This paper contributes to this knowledge, by focusing on one aspect of the urban environment and asking whether there is an association between commuting and obesity in residents of the Nepean Blue Mountains area on the fringes of Sydney. This is a cross-sectional study with obesity being the dependent variable, and commuting the independent variable, where 45 min or less was defined as local and distant commute was more than 45 min. In the sample of 158 respondents, the risk of obesity was twice as likely in the distant commuters than in the local commuters (OR 2.04, 95% CI 1.051 to 3.962, p = 0.034). Investigation of possible mediators of this association was limited by sample size; however, mode of transport was found to be a significant mediator. The results support the design of cities to provide health supporting environments for all residents, including equitable access to employment at a reasonable distance and effective public transport.
Vitamin D’s Role in Reducing Risk of SARS-CoV-2 and COVID-19 Incidence, Severity, and Death
Authors: Grant William B.
Published: January 2022

The article by D’Avolio and colleagues [...]
Do ESG metrics reflect crisis resilience of equities during the COVID-19 pandemic?
Authors: Dudás Fanni , Naffa Helena
Published: January 2022

We examine the role of ESG metrics in explaining crisis resilience during the COVID-19 pandemic. ESG refers to Environmental, Social, and Governance aspects of companies, collectively known as ESG factors, and has gained popularity in investments. Our empirical tests cover a database of 971 company members of the MSCI World Index and examine the COVID Crisis period from February 2020 – May 2020. We performed linear regression and Owen-Shapley decomposition in our study, like the literature. Our results show that ESG is not an “equity vaccine” but is a statistically significant and economically important variable in explaining returns during the pandemic. Our findings highlight the increasing importance of sustainability aspects in finance and in investing.
Az ESG-mutatók vállalati válságállóságra gyakorolt hatása a koronavírus-járvány alatt
Authors: Dudás Fanni , Naffa Helena
Published: January 2022

Az új koronavírusjárvány kitörése tagadhatatlan hatással volt a társadalomra, a közegészségügyre és a globális piacokra. Jelen kutatás keretében megvizsgáltuk, hogy a vállalatok különböző környezeti (E), szociális (S) és kormányzati (G) mutatói, amelyeket együttesen ESG-mutatóknak nevezünk, milyen hatást gyakorolnak a vállalatok válságállóságára. Empirikus teszteket végeztünk el az MSCI World Index közel 1000 vállalatára a 2020. február és 2020. május közötti időszakra. A vizsgálathoz a szakirodalomban megismert módszereket alkalmaztuk, lináris regressziót, valamint Owen–Shapley-dekompozíciót. Eredményeink azt mutatják, hogy az ESG-mutatók nem tekinthetők „részvényvakcinának” a vállalati válságállóság tekintetében, ugyanakkor statisztikailag szignifikáns változók az előrejelzés szempontjából. A kutatás kimenetele rávilágít a fenntarthatósági szempontok fontosságára a pénzügyi döntéshozatalban.
Konvergencia az Európai Unióban a fejlődés-gazdaságtan nézőpontjából : Megjegyzések Michael Landesmann és Székely P. István könyvéhez
Authors: Ábel István
Published: January 2022

Az EU-hoz 2004-ben csatlakozott 11 ország (köztük Magyarország) felzárkózásának folyamatát, eredményeit és problémáit elemzi Landesmann–Székely (2021) két kötetben közreadott tanulmánykötete, amelyben a régió és a vizsgált szakterület összesen 36 elismert szakértőjének tanulmányai sorakoznak. A kötetek írásai napjaink életbevágóan fontos kérdéseivel foglalkoznak magas fokú szakmai igényességgel, miközben érthető, világos és meggyőző képet adnak a nem szakértő olvasók számára is a régióról és az egyes országok sajátos problémáiról. A könyvvel kapcsolatos gondolataimat kritikai észrevételekként fejtem ki, de az olvasó látni fogja, hogy mindez semmit nem von le kutatásuk értékéből.
Teleeducación: Brecha digital una realidad palpable: una mirada desde la comunidad educativa
Authors: Hidalgo Achig Milton , Sandoval Cárdenas Marco , Salguero Núñez Stalin , Iza Garnica Juan
Published: January 2022

Ante la pandemia del Covid-19, las instituciones educativas se han visto obligadas a adoptar los medios y recursos tecnológicos para dar continuidad  al  proceso  enseñanza y aprendizaje, aunque los beneficios son múltiples, lo cierto es que, ante la desigualdad digital persistente en  nuestro  medio,  ha sido difícil casi imposible aprovechar al máximo estas herramientas, situación que ha truncado la calidad educativa y dificultado  la transferencia de conocimientos. La investigación analiza la teleeducación y el impacto que genera  la  brecha  digital  en  los actores de la comunidad educativa el estudio dio como resultado que los docentes, estudiantes y familias pertenecientes a la educación básica son los más renuentes a adaptarse a ambientes tecnológicos, tienen menor disponibilidad de recursos y un nivel bajo de competencias virtuales, teniendo dificultades para generar espacios virtuales de aprendizaje colaborativo y participativo mientras que los pertenecientes a educación superior no muestran mayor alteración emocional ni funcional se encuentra más familiarizado con plataformas educativas en línea, un factor común en el que coinciden los grupos de estudio es la disminución de la calidad educativa asociada a una mayor carga y estrés laboral.
planeamiento estratégico y el trabajo en equipo docente de una institución educativa parroquial
Authors: Vargas  Holgado Zoila Josefina , Vivar Bravo Carmen , Vivar Bravo Javier , Camayo Tovar Jessica
Published: January 2022

Desde la gestión directiva en las instituciones educativas se deben implementar acciones adecuada para el buen desempeño de los docentes, además, es importante diagnosticar las debilidades las cuales retrasan el cumplimiento de las metas, que lamentablemente repercutirán finalmente en los estudiantes, en talsentido una alternativa es  la  implementación de planes estratégico, desarrollados de manera colegiada fortaleciendo el trabajo cooperativo, por esta razón el objetivo de esta investigación fue determinar la relación entre el planeamiento estratégico y el trabajo en equipo docente de una institución educativa parroquial, se realizó un estudio de enfoque cuantitativo de tipo correlacional, empleando una población de 50 trabajadores, el procesamiento estadístico permitió concluir desde la percepción de los docentes que existe relación entre el planeamiento estratégico y el trabajo en equipo.
Estrategia pedagógica para el mejoramiento de los hábitos alimenticios
Authors: Velázquez Tejeda Míriam E. , Goñi Cruz Félix Fernando , Luquillas Rodríguez Marianela
Published: January 2022

El objetivo del estudio consiste en modelar una estrategia pedagógica que contribuya a la mejora de los hábitos alimenticios en los estudiantes de tercer grado de Educación Secundaria. La metodología empleada responde al paradigma socio crítico, el enfoque es cualitativo y se concreta  en una investigación educacional de tipo aplicada. La muestra es intencionada y está constituida por un directivo, docentes, padres de familia, estudiantes y personal de servicio. Como parte del  diagnóstico de campo se aplicaron diferentes técnicas como  entrevistas,  observación   a  clases y encuestas. Los resultados  reafirmaron las deficiencias existentes en la práctica pedagógica evidenciadas en el bajo nivel de conocimientos, habilidades y hábitos alimenticios en los estudiantes. Como conclusión principal se aporta una estrategia pedagógica  para  contribuir  a  la promoción de los hábitos alimenticios saludables en los estudiantes de una institución educativa de secundaria de Perú.
Pengaruh Sistem Informasi Akuntansi Keuangan Terhadap Siklus Hidup Kinerja Keuangan Perusahaan Manufaktur Di Era Pandemi
Authors: Safkaur Otniel
Published: January 2022

Siklus hidup kinerja keuangan perusahaan merupakan gambaran keuangan perusahaan pada suatu periode tertentu baik menyangkut aspek penghimpunan dana maupun penyaluran dana yang biasanya diukur dengan indikator kecukupan modal, likuiditas dan profitabilitas. Kinerja keuangan adalah gambaran kondisi keuangan perusahaan pada periode tertentu. Kinerja keuangan adalah gambaran kondisi keuangan pada suatu periode tertentu dalam pencapaian hasil ataupun tujuan perusahaan. Tujuan kinerja keuangan adalah untuk menentukan siklus hidup keberhasilan pengelolaan keuangan perusahaan terutama kondisi likuiditas, kecukupan modal dan profitabilitas yang dicapai dalam tahun berjalan maupun tahun sebelumnya serta untuk mengetahui kemampuan dalam mendayagunakan semua asset yang dimiliki dalam menghasilkan profit secara efisien. Tujuan kinerja keuangan perusahaan adalah untuk mengetahui kondisi keuangan perusahaan, sehingga keputusan yang rasional dapat dibuat dalam mengambil keputusan dalam perusahaan. Kinerja keuangan dapat mengetahui posisi keuangan dan keberhasilan dalam pengelolaan keuangan yang mampu dapat digunakan dalam pengambilan keputusan yang rasional dalam suatu perusahaan. Populasi dalam penelitian ini adalah 193 (seratus Sembilan puluh tiga) sektor manufaktur yang yang terdaftar di BEI dan 579 (lima ratus tujuh puluh sembilan sampel. Metode pengambilan sampel dilakukan dengan teknik purposive sampling berdasarkan kriteria tertentu. Analisis data menggunakan analisis regresia linier berganda yang diperoleh dalam penelitian ini dengan bantuan teknologi komputer yaitu program aplikasi SPSS For Windows 26. Hasil penelitian ini menunjukan bahwa sistem informasi akuntansi keuangan, berpengaruh terhadap siklus hidup kinerja keuangan perusahaan era Pandemi.