bluuebunny/crossref_metadata_2025 huggingface dataset:
Hesperetin and Capecitabine Abate 1,2 Dimethylhydrazine-Induced Colon Carcinogenesis in Wistar Rats via Suppressing Oxidative Stress and Enhancing Antioxidant, Anti-Inflammatory and Apoptotic Actions
Authors: Hassan Asmaa K. , El-Kalaawy Asmaa M. , Abd El-Twab Sanaa M. , Alblihed Mohamed A. , Ahmed Osama M.
Published: April 2023

Colon cancer is a major cause of cancer-related death, with significantly increasing rates of incidence worldwide. The current study was designed to evaluate the anti-carcinogenic effects of hesperetin (HES) alone and in combination with capecitabine (CAP) on 1,2 dimethylhydrazine (DMH)-induced colon carcinogenesis in Wistar rats. The rats were given DMH at 20 mg/kg body weight (b.w.)/week for 12 weeks and were orally treated with HES (25 mg/kg b.w.) and/or CAP (200 mg/kg b.w.) every other day for 8 weeks. The DMH-administered rats exhibited colon-mucosal hyperplastic polyps, the formation of new glandular units and cancerous epithelial cells. These histological changes were associated with the significant upregulation of colon Ki67 expression and the elevation of the tumor marker, carcinoembryonic antigen (CEA), in the sera. The treatment of the DMH-administered rats with HES and/or CAP prevented these histological cancerous changes concomitantly with the decrease in colon-Ki67 expression and serum-CEA levels. The results also indicated that the treatments with HES and/or CAP showed a significant reduction in the serum levels of lipid peroxides, an elevation in the serum levels of reduced glutathione, and the enhancement of the activities of colon-tissue superoxide dismutase, glutathione reductase and glutathione-S-transferase. Additionally, the results showed an increase in the mRNA expressions of the anti-inflammatory cytokine, IL-4, as well as the proapoptotic protein, p53, in the colon tissues of the DMH-administered rats treated with HES and/or CAP. The TGF-β1 decreased significantly in the DMH-administered rats and this effect was counteracted by the treatments with HES and/or CAP. Based on these findings, it can be suggested that both HES and CAP, singly or in combination, have the potential to exert chemopreventive effects against DMH-induced colon carcinogenesis via the suppression of oxidative stress, the stimulation of the antioxidant defense system, the attenuation of inflammatory effects, the reduction in cell proliferation and the enhancement of apoptosis.
Infinite Product and Its Convergence in CAT(1) Spaces
Authors: Termkaew Sakan , Chaipunya Parin , Kohsaka Fumiaki
Published: April 2023

In this paper, we study the convergence of infinite product of strongly quasi-nonexpansive mappings on geodesic spaces with curvature bounded above by one. Our main applications behind this study are to solve convex feasibility by alternating projections, and to solve minimizers of convex functions and common minimizers of several objective functions. To prove our main results, we introduce a new concept of orbital Δ-demiclosed mappings which covers finite products of strongly quasi-nonexpansive, Δ-demiclosed mappings, and hence is applicable to the convergence of infinite products.
New Solitary Wave Patterns of the Fokas System in Fiber Optics
Authors: Kaplan Melike , Akbulut Arzu , Alqahtani Rubayyi T.
Published: April 2023

The Fokas system, which models wave dynamics using a single model of fiber optics, is the design under discussion in this study. Different types of solitary wave solutions are obtained by utilizing generalized Kudryashov (GKP) and modified Kudryashov procedures (MKP). These novel concepts make use of symbolic computations to come up with a dynamic and powerful mathematical approach for dealing with a variety of nonlinear wave situations. The results obtained in this paper are original and have the potential to be useful in mathematical physics.
A Parallel Solver for FSI Problems with Fictitious Domain Approach
Authors: Boffi Daniele , Credali Fabio , Gastaldi Lucia , Scacchi Simone
Published: April 2023

We present and analyze a parallel solver for the solution of fluid structure interaction problems described by a fictitious domain approach. In particular, the fluid is modeled by the non-stationary incompressible Navier–Stokes equations, while the solid evolution is represented by the elasticity equations. The parallel implementation is based on the PETSc library and the solver has been tested in terms of robustness with respect to mesh refinement and weak scalability by running simulations on a Linux cluster.
Combination of Farnesol with Common Antifungal Drugs: Inhibitory Effect against Candida Species Isolated from Women with RVVC
Authors: Nikoomanesh Fatemeh , Falahatinejad Mahsa , Černáková Lucia , dos Santos André Luis Souza , Mohammadi Shahla Roudbar , Rafiee Mitra , Rodrigues Célia Fortuna , Roudbary Maryam
Published: April 2023

Background and Objectives: Vulvovaginal candidiasis (VVC) is a mucous membrane infection, with an increased rate of antifungal resistance of Candida species. In this study, the in vitro efficacy of farnesol alone or in combination with traditional antifungals was assessed against resistant Candida strains recovered from women with VVC. Materials and Methods: Eighty Candida isolates were identified by multiplex polymerase chain reaction (PCR), and the antifungal susceptibility to amphotericin B (AMB), fluconazole (FLU), itraconazole (ITZ), voriconazole (VOR), clotrimazole (CTZ), and farnesol was tested by the standard microdilution method. The combinations of farnesol with each antifungal were calculated based on the fractional inhibitory concentration index (FICI). Result: Candida glabrata was the predominant species (48.75%) isolated from vaginal discharges, followed by C. albicans (43.75%), C. parapsilosis (3.75%), a mixed infection of C. albicans and C. glabrata (2.5%) and C. albicans and C. parapsilosis (1%). C. albicans and C. glabrata isolates had lower susceptibility to FLU (31.4% and 23.0%, respectively) and CTZ (37.1% and 33.3%, respectively). Importantly, there was “synergism” between farnesol–FLU and farnesol–ITZ against C. albicans and C. parapsilosis (FICI = 0.5 and 0.35, respectively), reverting the original azole-resistant profile. Conclusion: These findings indicate that farnesol can revert the resistance profile of azole by enhancing the activity of FLU and ITZ in resistant Candida isolates, which is a clinically promising result.
Amino Acid Profiles in Older Adults with Frailty: Secondary Analysis from MetaboFrail and BIOSPHERE Studies
Authors: Calvani Riccardo , Picca Anna , Rodriguez-Mañas Leocadio , Tosato Matteo , Coelho-Júnior Hélio José , Biancolillo Alessandra , Laosa Olga , Gervasoni Jacopo , Primiano Aniello , Santucci Lavinia , Giampaoli Ottavia , Bourdel-Marchasson Isabelle , Regueme Sophie C. , Sinclair Alan J. , Urbani Andrea , Landi Francesco , Gambassi Giovanni , Marini Federico , Marzetti Emanuele
Published: April 2023

An altered amino acid metabolism has been described in frail older adults which may contribute to muscle loss and functional decline associated with frailty. In the present investigation, we compared circulating amino acid profiles of older adults with physical frailty and sarcopenia (PF&S, n = 94), frail/pre-frail older adults with type 2 diabetes mellitus (F-T2DM, n = 66), and robust non-diabetic controls (n = 40). Partial least squares discriminant analysis (PLS–DA) models were built to define the amino acid signatures associated with the different frailty phenotypes. PLS–DA allowed correct classification of participants with 78.2 ± 1.9% accuracy. Older adults with F-T2DM showed an amino acid profile characterized by higher levels of 3-methylhistidine, alanine, arginine, ethanolamine, and glutamic acid. PF&S and control participants were discriminated based on serum concentrations of aminoadipic acid, aspartate, citrulline, cystine, taurine, and tryptophan. These findings suggest that different types of frailty may be characterized by distinct metabolic perturbations. Amino acid profiling may therefore serve as a valuable tool for frailty biomarker discovery.
The Special and General Mechanism of Cyanobacterial Harmful Algal Blooms
Authors: Cheng Wenduo , Hwang Somin , Guo Qisen , Qian Leyuan , Liu Weile , Yu Yang , Liu Li , Tao Yi , Cao Huansheng
Published: April 2023

Cyanobacterial harmful algal blooms (CyanoHABs) are longstanding aquatic hazards worldwide, of which the mechanism is not yet fully understood, i.e., the process in which cyanobacteria establish dominance over coexisting algae in the same eutrophic waters. The dominance of CyanoHABs represents a deviation from their low abundance under conventional evolution in the oligotrophic state, which has been the case since the origin of cyanobacteria on early Earth. To piece together a comprehensive mechanism of CyanoHABs, we revisit the origin and adaptive radiation of cyanobacteria in oligotrophic Earth, demonstrating ubiquitous adaptive radiation enabled by corresponding biological functions under various oligotrophic conditions. Next, we summarize the biological functions (ecophysiology) which drive CyanoHABs and ecological evidence to synthesize a working mechanism at the population level (the special mechanism) for CyanoHABs: CyanoHABs are the consequence of the synergistic interaction between superior cyanobacterial ecophysiology and elevated nutrients. Interestingly, these biological functions are not a result of positive selection by water eutrophication, but an adaptation to a longstanding oligotrophic state as all the genes in cyanobacteria are under strong negative selection. Last, to address the relative dominance of cyanobacteria over coexisting algae, we postulate a “general” mechanism of CyanoHABs at the community level from an energy and matter perspective: cyanobacteria are simpler life forms and thus have lower per capita nutrient demand for growth than coexisting eukaryotic algae. We prove this by comparing cyanobacteria and eukaryotic algae in cell size and structure, genome size, size of genome-scale metabolic networks, cell content, and finally the golden standard—field studies with nutrient supplementation in the same waters. To sum up, the comprehensive mechanism of CyanoHABs comprises a necessary condition, which is the general mechanism, and a sufficient condition, which is the special mechanism. One prominent prediction based on this tentative comprehensive mechanism is that eukaryotic algal blooms will coexist with or replace CyanoHABs if eutrophication continues and goes over the threshold nutrient levels for eukaryotic algae. This two-fold comprehensive mechanism awaits further theoretic and experimental testing and provides an important guide to control blooms of all algal species.
Magnetostratigraphy of the Tuotuohe Formation in the Tuotuohe Basin, Central-Northern Tibetan Plateau: Paleolatitude and Paleoenvironmental Implications
Authors: Li Leyi , Chang Hong , Li Xiangzhong , Bradák Balázs , Shen Junjie , Qiang Xiaoke , Guan Chong
Published: April 2023

Paleolatitude evolution could provide a general paleo-location framework for explaining the paleoclimate change and tectonic deformation in geological time. Strengthening the paleolatitude study of the Tuotuohe Basin is important for understanding the history and mechanism of the tectonic uplift process in the north-central Tibetan Plateau. In this study, we introduced the magnetostratigraphy for the Tuotuohe-D (TTH-D) section in the Tuotuohe Basin, central-northern Tibetan Plateau, in order to constrain the chronology and to reconstruct the paleolatitude of the basin during the deposition of the Tuotuohe Formation. The results indicated that the Tuotuohe Formation in the TTH-D section was deposited between 38.5 and ~36.7 Ma. Combining this age with the results from the Tuotuohe section indicates that the age of the Tuotuohe Formation spans the interval from >38.5 Ma to ~33 Ma. Additionally, other paleomagnetic data of the Tuotuohe Formation from the Tuotuohe section, combined with the data from this study, indicate that the paleolatitude of the Tuotuohe Basin during the late Eocene was 25.9 ± 4.2°. That means that the Tuotuohe Basin was located in a subtropical anticyclonic zone and that the paleoenvironment during the late Eocene might be controlled by subtropical high pressure. Additionally, paleomagnetic results from the Qiangtang terrane and the bordering regions are combined with the results of our study, which suggest that the paleolatitude of the Tuotuohe Basin at ~26 Ma coincides well with the Eurasian apparent polar wander path for that interval, and that the N-S India–Asia convergence was reduced or ceased at ~26 Ma in the Tuotuohe Basin.
State of the Art of Mobile Learning in Jordanian Higher Education: An Empirical Study
Authors: Al-Qora’n Lamis F. , Al-odat Abdelsalam M. , Al-jaghoub Saheer , Al-Yaseen Hussein
Published: April 2023

A new approach to learning is mobile learning (m-learning), which makes use of special features of mobile devices in the education sector. M-learning is becoming increasingly common in higher education institutions all around the world. The use of mobile devices for education and learning has also gained popularity in Jordan. Unlike studies about Jordan, there are many studies that thoroughly analyze the situation of m-learning in other countries. Thus, it is important to understand the current situation of m-learning at Jordanian universities, especially in light of the COVID-19 pandemic. While there have been some studies conducted prior to COVID-19 and a few studies after COVID-19, there is a need for a comprehensive study that provides an in-depth exploration of the current situation, student adoption, benefits, disadvantages, and challenges, particularly following COVID-19. Therefore, this study utilizes a sequential exploratory mixed research method to investigate the current state of the art of m-learning in Jordanian higher education with a particular focus on student adoption, benefits, disadvantages, and challenges. Firstly, the study explores the existing literature on m-learning and conducts 15 interviews with educators and learners in three Jordanian universities to gain insights into their experiences with m-learning. The study then distributes a survey to students at four Jordanian universities, representing both public and private universities, to generalize the results from the qualitative study. Additionally, the study investigates the relationship between student enrollment in public/private universities and the adoption of m-learning. The study came to the conclusion that students have a positive opinion of m-learning and are also willing to use it. However, there are a number of disadvantages and challenges to its adoption. Additionally, there is a relationship between student enrolment in public/private universities and the adoption of m-learning. These findings have important implications for institutions that want to incorporate m-learning into their undergraduate and graduate degree programs, as they aid decision-makers in these universities in creating frameworks that may be able to meet the needs of m-learning.
Review on Resistive Switching Devices Based on Multiferroic BiFeO3
Authors: Zhao Xianyue , Menzel Stephan , Polian Ilia , Schmidt Heidemarie , Du Nan
Published: April 2023

This review provides a comprehensive examination of the state-of-the-art research on resistive switching (RS) in BiFeO3 (BFO)-based memristive devices. By exploring possible fabrication techniques for preparing the functional BFO layers in memristive devices, the constructed lattice systems and corresponding crystal types responsible for RS behaviors in BFO-based memristive devices are analyzed. The physical mechanisms underlying RS in BFO-based memristive devices, i.e., ferroelectricity and valence change memory, are thoroughly reviewed, and the impact of various effects such as the doping effect, especially in the BFO layer, is evaluated. Finally, this review provides the applications of BFO devices and discusses the valid criteria for evaluating the energy consumption in RS and potential optimization techniques for memristive devices.
Competitive Coordination-Oriented Monodispersed Cobalt Sites on a N-Rich Porous Carbon Microsphere Catalyst for High-Performance Zn−Air Batteries
Authors: Shen Mengxia , Yang Hao , Liu Qingqing , Wang Qianyu , Liu Jun , Qi Jiale , Xu Xinyu , Zhu Jiahua , Zhang Lilong , Ni Yonghao
Published: April 2023

Metal/nitrogen-doped carbon single-atom catalysts (M−N−C SACs) show excellent catalytic performance with a maximum atom utilization and customizable tunable electronic structure. However, precisely modulating the M−Nx coordination in M−N−C SACs remains a grand challenge. Here, we used a N-rich nucleobase coordination self-assembly strategy to precisely regulate the dispersion of metal atoms by controlling the metal ratio. Meanwhile, the elimination of Zn during pyrolysis produced porous carbon microspheres with a specific surface area of up to 1151 m2 g−1, allowing maximum exposure of Co−N4 sites and facilitating charge transport in the oxygen reduction reaction (ORR) process. Thereby, the monodispersed cobalt sites (Co−N4) in N-rich (18.49 at%) porous carbon microspheres (CoSA/N−PCMS) displayed excellent ORR activity under alkaline conditions. Simultaneously, the Zn−air battery (ZAB) assembled with CoSA/N−PCMS outperformed Pt/C+RuO2-based ZABs in terms of power density and capacity, proving that they have good prospects for practical application.
Solution-Processed Metal Oxide Nanostructures for Carrier Transport
Authors: Yang Sheng-Hsiung
Published: April 2023

Metal oxide semiconductors represent a unique class of materials that show prominent optoelectronic applications nowadays [...]
Japanese Pharmacists’ Perceptions of Self-Development Skills and Continuing Professional Development
Authors: Mamiya Kayoko Takeda , Takahashi Kiyoshi , Iwasaki Tatsuyuki , Irie Tetsumi
Published: April 2023

Background: The role of healthcare professionals, including pharmacists, is changing. Lifelong learning and continuing professional development (CPD) are more critical than ever for both current and future pharmacists in the face of global health challenges and new technologies, services and therapies that are continually and rapidly introduced into their daily practice. Currently, Japanese pharmacists’ licences are not renewable, although most developed countries have a renewal system. Therefore, understanding Japanese pharmacists’ perceptions of CPD is the first step in reviewing undergraduate and postgraduate education. Methods: The target population was Japanese pharmacists, i.e., community pharmacy pharmacists and hospital pharmacists. The participants were administered a questionnaire with 18 items related to continuing professional development. Results: Our study found that regarding item “Q16 Do you think you need further education in your undergraduate education to continue your professional development?”, (a) the ability to identify one’s own problems and issues, (b) the ability to make plans to solve problems and issues, (c) the ability to carry out plans to solve problems and issues and (d) the ability to repeat steps of self-development, approximately 60% of pharmacists answered that these aspects were “necessary” or “quite necessary”. Conclusion: As part of universities’ responsibility for the lifelong education of pharmacists, it is necessary to systematically conduct teaching seminars or undergraduate education or postgraduate education on self-development while training pharmacists to meet the needs of citizens.
Assessment of Manure Compost Used as Soil Amendment—A Review
Authors: Goldan Elena , Nedeff Valentin , Barsan Narcis , Culea Mihaela , Panainte-Lehadus Mirela , Mosnegutu Emilian , Tomozei Claudia , Chitimus Dana , Irimia Oana
Published: April 2023

Organic waste management is an important concern for both industries and communities. Proper management is crucial for various reasons, such as reducing greenhouse gas emissions, promoting sustainability, and improving public health. Composted manure is a valuable source of nutrients and organic matter that can be used as a soil amendment in agriculture. Some important benefits of using composted manure in agriculture include: improves soil fertility, enhances soil structure, reduces soil erosion, suppresses plant diseases, and reduces reliance on synthetic fertilizers. Composted manure represents one of the most effective methods of organic waste valorization. Its macronutrients and micronutrients content can increase plant yield, without any reported negative or toxic effects on the soil and plants at various application rates. However, improper use of farmyard manure can have negative effects on the environment, such as air pollution from greenhouse gas emissions, soil acidification, and contamination of surface water and groundwater by nitrates and phosphates. The properties of the soil, including aeration, density, porosity, pH, water retention capacity, etc., can be improved by the structure and composition of manure. The slow-release source of nutrients provided by the nutrient content of compost can determine proper plants growth. However, it is crucial to use compost in moderation and regularly test soil to prevent excessive nutrient application, which can have adverse effects on plants and the environment.
The Sustainability of Industrial Hemp: A Literature Review of Its Economic, Environmental, and Social Sustainability
Authors: Kaur Gurinder , Kander Ronald
Published: April 2023

Industrial hemp is a versatile, sustainable plant with several applications of its various forms, including fiber obtained from hemp stalks, food obtained from hemp seeds, and oil obtained from hemp flowers and seeds. Industrial hemp has the potential to offer a solution to the crisis of climate change, since it is a viable energy source that satisfies the three pillars of sustainability, namely economy, environment, and society. Although industrial hemp has been growing as an agricultural commodity in different parts of the world for decades, its production was banned until recently in the U.S. because of its association with marijuana. We conducted a literature review to explore some of the reasons why the U.S. production of industrial hemp has increased significantly since the ban was lifted. Our findings revealed that hemp’s rapidly increasing popularity in the U.S. since 2018 can be attributed, in part, to its sustainability potential (defined as the potential to positively impact the sustainability of products, using hemp as a renewable raw material). This study fills a gap in the knowledge regarding hemp’s potential as a sustainable crop.
Selenium Biofortification Enhanced Grain Yield and Alleviated the Risk of Arsenic and Cadmium Toxicity in Rice for Human Consumption
Authors: Paniz Fernanda Pollo , Pedron Tatiana , Procópio Vitória Aparecida , Lange Camila Neves , Freire Bruna Moreira , Batista Bruno Lemos
Published: April 2023

Arsenic (As) and Cadmium (Cd) are toxic to rice plants. However, selenium (Se) has the potential to regulate As and Cd toxicity. The present study aimed to evaluate the co-exposure to As5+ and Se6+ species in two rice cultivars, BRS Pampa and EPAGRI 108. The plants were divided into six groups and cultivated until complete maturation of the grains, under greenhouse conditions. Regarding total As and inorganic As (i-As) accumulation in grains, the highest concentrations were found for BRS Pampa. For Se, EPAGRI 108 presented the highest concentration of inorganic and organic Se (i-Se and o-Se). The exposure assessments showed that Se biofortification can mitigate the As accumulation in rice and, consequently, the risk of As and Cd toxicity in grains for human consumption. The combined effect of As and Se in rice plants could represent an alternative to biofortify this food in a safe way and with a higher percentage of bioavailable Se. Although Se is able to mitigate As toxicity in rice plants, in the present study we showed that co-exposure in different cultivars under the same growing conditions may present different responses to As and Se exposure.
Simplified Python Models for Photovoltaic-Based Charging Stations for Electric Vehicles Considering Technical, Economic, and Environmental Aspects
Authors: Direya Rezeq , Khatib Tamer
Published: April 2023

This paper proposes Python models for a photovoltaic-based charging station for electric vehicles considering technical, economic, and environmental aspects. The proposed models consider two main cases of photovoltaic-based charging systems, which are photovoltaic/grid-charging systems and photovoltaic/grid/battery-charging systems. Moreover, additional operational options, such as exporting energy to the grid and zero-export, are added to the proposed models. The proposed techno-economic models can be used to evaluate the location of the electric vehicle charging station and the financial and environmental benefits of the electric vehicle charging station that is installed in a residential, commercial, or industrial context. The models are tested by proposing a simulation based on load demand, and then different cases, including the actual size case and additional trading cases, are investigated.
The use of automated information systems in the investigation of criminal offences
Authors: Kaduk Svitlana , Shulha Andriy , Svoboda Ivo , Varyvoda Iryna , Mykytyn Yurii
Published: April 2023

The aim of the study was to develop recommendations for the most effective and safe use of automated information systems in the investigation of criminal offences. The study involved the following methods: anamnestic method; descriptive analysis; forecasting method. The society uses an automated information system, which is defined as an ordered complex (system) of actions designed to implement a specific information technology for the performance of specified functions, which involves personnel and a complex of automation tools. They help to create databases, which are used in the investigation of criminal offences. The following measures are proposed for increasing the efficiency and expanding the scope of automated information systems in the investigation of crimes: ensure the protection of databases from external intrusions (cyber-attacks); ensure the internal security of the data contained in the respective databases in order to prevent privacy violations; ensure the organization of specialized training for law enforcement officers; automate a number of tactical operations using information systems; develop and adapt all possible information resources and technologies for the set procedural tasks; create unified databases of forensic data at the international and national levels. This study opens up prospects for further research for the most effective protection of databases from illegal use, which will contribute to the development of this direction in international and national criminal justice.
The impact of gamification on the motivation of primary schoolers under martial law
Authors: Byhar Hanna , Pits Iryna , Shevchuk Krystyna , Prokop Inna , Shestobuz Olha , Dariichuk Serhii
Published: April 2023

Ensuring an uninterrupted learning process requires new approaches that will enhance pupil motivation. The aim of the work is to ensure the possibility of including gamification in the learning process of primary schoolers under martial law. This aim was achieved through the use of the methods of questionnaire survey and analysis; calculations of significance, efficiency ratios and Spearman’s rank correlation coefficient. The study found that only 19% of teachers used gamification processes before the study. Learning approaches included core material learning through EdApps and Can’t Wait to Learn. EdApp and Google Form were used to study basic terminology in the form of a game, do homework, and test knowledge. Dynamism is of the greatest importance for teachers, as it promotes the participation of all pupils, and affects the development of independence, thinking, and creative skills. The study found that pupils of grades 2-4, who used gamification in their studies, showed a higher knowledge level. It was established that memory and sociability were developed to the greatest extent among schoolchildren. The practical significance of the work is the possibility of transformation of the educational process as a result of the use of the proposed interactive programmes. Prospects of the research may be related to the comparison of the effectiveness of using gamification techniques among primary and secondary schoolers.
Digital services of regional centers for scientific and technical information in China
Authors: Zhiliang Guo , Solianyk Аllа , Karpenko Olena
Published: April 2023

The article aims to study the current level of digital services of the regional subsystem of the National System of Scientific and Technical Information of the People's Republic of China and to determine its optimization directions.
A content analysis of 28 provincial institutes of scientific and technical information’s official sites was carried out; the most powerful of them were identified in terms of resource and service potential, the level of organization of corporate cooperation based on consolidated digital platforms of multifunctional user service. It is proved that the level of efficiency of digital services of regional scientific and technical information systems directly depends on the level of the province’s economic development and the ability of its government to finance and technologically equip information industry centers activities, and to establish sustainable interaction of all subjects of the information market. Summarizing the results of the content analysis made it possible to identify reserves for improving the service capabilities of the Chinese information industry’s regional clusters, to design vectors for diversifying consulting, expert-analytical, cognitive services of provincial institutes of scientific and technical information, the development of integrated innovation-oriented intelligent service platforms operating based on artificial intelligence technologies.
GESTÃO DE CONTRATOS E SUA APLICAÇÃO COMO INSTRUMENTO DE REDUÇÃO DE CUSTO: PLANEJAMENTO E FISCALIZAÇÃO DOS RECURSOS PÚBLICOS
Authors: REGILSON PINHO DE MATOS FRANCISCO , LUIZ REIS DERCIO
Published: April 2023

The Public Administration constantly seeks to improve the quality of services in the expectation of fulfilling the first of its missions, which is to meet the real needs of the community. Meeting the public interest does not materialize only with the planning, bidding and contracting stages. The act of supervising can be understood as an instrument that lends itself to guaranteeing the best execution of the contract and fidelity to its object, in addition to ensuring that what is established by the principle of efficiency in Public Administration is fulfilled. This study aims to investigate the situation of inspection and planning of administrative contracts, as well as its application as a cost reduction tool in Public Administration. The theoretical perspective is based on the concepts of the Brazilian public procurement process and its stages, administrative contracts and their characteristics, and contract management and inspection. Thus, this research is characterized as descriptive, with a qualitative approach, based on bibliographic and documentary support. It is possible to conclude that the consequences of the evaluations on the doctrinal teachings presented in this study found that the purpose of administrative contracts is the integral service and the fulfillment of the needs of the entire community.
camino del migrante en la animación 3D
Authors: Echenique Lima Luis David
Published: April 2023

Aquí trataremos un tema que ha sido ampliamente abordado por los estudios políticos y sociales. Se trata de la ruta de la migración, las desventuradas tribulaciones que un migrante de cualquier región del mundo tiene que sufrir para sortear las temibles dificultades a las que hace frente al abandonar su familiar lugar de origen y llegar a otra parte, donde es visto como diferente y ajeno. Los migrantes se enfrentan a la animadversión de la sociedad, a las penurias de la miseria, a la explotación que los asuela y al racismo que los sobaja. En la representación de estos procesos migratorios concurren la interculturalidad, la identidad sociocultural y el racismo. Este es el enfoque que nos guía al hacer un análisis sociocultural de la película de animación tridimensional Coco, estrenada en octubre de 2017 en el Festival Internacional de Cine de Morelia. Esta producción audiovisual fue declarada “una carta de amor para México” tanto por sus dos directores Lee Unkrich y Adrian Molina, así como por su productora Darla K. Anderson. Los medios de comunicación repitieron dicha afirmación hasta la saciedad, pero ello no lo hace verdad. Un análisis de carácter crítico e histórico revela el contenido sociohistórico que se expresa en las construcciones histórica, dramática y técnica de los personajes, lugares, vestuarios y situaciones de Coco.
Cuerpo y territorio
Authors: Castillo Sinisterra Andrea
Published: April 2023

La violencia hacia los cuerpos de las mujeres afroecuatorianas y la explotación material de la tierra, son dos categorías epistemológicas para ser repensadas conjuntamente. La tierra y el cuerpo se han convertido en objetos de explotación, expulsión y exclusión a partir de la inserción capitalista sujeta desde el sistema colonial. Este artículo expone la multidimensionalidad de violencias que atraviesa el territorio y el cuerpo de una mujer afroecuatoriana de la provincia de Esmeraldas, en un contexto de industrialización capitalista que ubica al cuerpo racializado como un objeto, que no representa subjetividad, y por tanto es explotado y dominado. El territorio también es reducido a una forma simplista de objeto, mercancía con fines capitalistas. Por medio del análisis de la historia de vida de Sofía Corozo, una mujer afroesmeraldeña, de la tercera edad y lideresa de la comunidad de La Chiquita, ubicada al Norte de la provincia de Esmeraldas, el artículo busca evidenciar las formas de violencia que viven las mujeres afroecuatorianas, así como los procesos de lucha, resistencia y defensa de su cuerpo, entendido éste como “cuerpo-territorio” y el territorio como “tierra-naturaleza”, desde su posicionamiento en contra de la industrialización de palma aceitera
Representation and Difference
Authors: López-Yánez María Gabriela
Published: April 2023

During the Atlantic slavery period enslaved and freed Africans and Afro-descendants populated principally two areas in Ecuador: the Chota-Mira valley (Imbabura and Carchi provinces) and the northern part of Esmeraldas province. Afrodescendants from these territories created two music and dance-based events; Bomba del Chota and Marimba Esmeraldeña. Since their arrival, Afro-descendants in Ecuador have had a history of dehumanization that continues until the present day. Based on the testimonies of the Marimberos and Bomberos included in this paper, archival compilation and fieldwork research, I address questions of racialized representations of Marimba and Bomba in order to build towards the notion of communicative competence. Here I propose the shift of some of the representations of Marimba and Bomba from the current focus on stereotypical characteristics such as a naturalized happiness and hyper-sexuality, to an emphasis on Afro-Ecuadorians’ collective memories. Through a sonic composition and its theorization, a questioning of coloniality that sustains racialized representations and the exposure of key, but usually silenced, collective memories is proposed. By developing a sonic composition and analyzing it, I aim to contribute with crucial theoretical and practical strategies to deepen a much needed and timely understanding of Marimba and Bomba

 

 

1) This paper and its sonic composition are bas ed on a chapter of my PhD thesis entitled “Sounds of collective memories: A decolonial counter- representation of Afro-Ecuadorian Marimba Esmeraldeña and Bomba del Chota” (López-Yánez, 2020). I dedicate this paper to one of the most renowned, charismatic and wise Afro-Ecuadorian artist, the Marimbero Guillermo Ayoví Erazo -Papá Roncón-, who passed away on September 30th, 2022, while I was writing it.
Effect of Process Variables and Zeolite Adsorbent in Coffee Bean Drying
Authors: Soeswanto Bambang , Edi Wahyuni Ninik Lintang , Prihandini Ghusrina , Pratama Yusuf , Firmansyah Taufik Akbar , Widyabudiningsih Dewi
Published: April 2023

Green coffee beans to be stored for transportation must meet storage quality standards, especially the maximum moisture content of 12.5%, so the drying process must be carried out to achieve quality standards, but still economical. The study aims to obtain optimum operating conditions on the drying of Arabica-type coffee beans using a fluidized bed dryer assisted by zeolite adsorbents in a separated fluidized bed prior to heating, as well as calculating the energy consumption of blowers and air heater. The operating conditions were varied, namely air flow rate of 1.79 – 2.29 m/s, air temperature of 45 o C, 50 o C, and 55 o C, zeolite adsorbent mass of 150 g, 175 g, and 200 g.  The coffee beans quality tests carried out were the moisture, carbohydrates, protein content, and the visual appearance of the beans. The results show that the optimum drying process of coffee beans resulting a minimum protein and carbohydrate damage are the air velocity of 2.1 m/s, air temperature of 55°C, drying time of 240 minutes, and zeolite adsorbent mass of 150 grams, with energy consumption of 5.02 KWH (equivalent to 180 MJ/T). The addition of zeolite as much as 150 grams, 175 grams, and 200 grams as adsorbent was able to reduce the relative humidity (RH) of air by 16.65%, 18.60%, and 21.17% respectively.  The drying rate of coffee beans is mainly influenced by air temperature (more predominantly) than the adsorption of air humidity by zeolite.
Detection of Empty/Occupied States of Parking Slots in Multicamera system using Mask R-CNN Classifier
Authors: Nugroho Hertog , Adi Ginanjar Suwasono , Afandi Muhammad Khoer
Published: April 2023

A fast growth of vehicles in big cities has an impact of arising road loads and difficulty of finding empty parking spaces. One solution to cope with the problem is to develop a parking management system which can provide useful information of available parking spaces to the potential users. This paper discusses about a new multicamera arrangement and the function to evaluate the empty/occupied states of the parking slots, as an alternative solution to the existing single camera system, The system adopted Mask R-CNN for its classifier, because of its capability to provide the polygon outputs for its detected objects, compared with the existing bounding box outputs provided by other classifiers. The proposed function has optimized the available information from all cameras, by considering the relative position of each camera to the parking spaces, and also capable of overcoming occlusion problem occurs in some cameras, The experiment shows that the capability of overcoming the occlusion problem has been validated, and its performance to evaluate the empty/occupied states of the parking slots was better than the single camera system to a certain threshold.
The Test Bench for Simulation Phase Fault and Ground Fault Analysis Protection Concept Using Symmetrical Components
Authors: Supriyanto Supriyanto , Utomo Heri Budi , Sunarto Sunarto , Siswoyo Siswoyo , Setiadi Budi
Published: April 2023

Various laboratory experiment platforms have been developed to provide students with theoretical knowledge and practical experience. Understanding concepts related to the process for determining the design of protection settings requires practical experience, which can be achieved by repeated trials. In this paper, the mechanism of a ground fault in a medium voltage feeder is done using a simulator substation as a case study. This process must be carried out twice, once for the ground-fault relays protection based on residual currents and then repeated based on residual voltage. For further understanding of the electrical distribution network, the system will be operated at 20 kV on the primary and 380 V on the secondary. The model uses smaller nominal voltages consisting of 380 V on the primary and the secondary. The result of one phase fault protection mechanism works well at each point of interference, and voltage transformers are protected from overheating and damage. The lowest value of the single-phase to ground short circuit that occurs at the fault location at the farthest point of interference from the protection relay location is used for the threshold setting on the voltage relay. The one phase fault protection mechanism works well at each point of interference, and the voltage transformer is protected from overheating and damage. For residual current ground fault protection effective, the threshold setting of phase fault inverse time delay with threshold setting I> is 1.5 ampere, and instantaneous I>> is 7.5 ampere. The effective threshold setting for residual ground fault protection wasUo> = 22% dan UO>> = 33,2%.
ПРОБЛЕМИ ТА ОСОБЛИВОСТІ НЕЗАЛЕЖНОГО АУДИТУ В ЗАРУБІЖНИХ КРАЇНАХ
Authors: Артюх О. В. , Панфілов М. С.
Published: April 2023

У даній роботі розглянуто проблеми та особливості незалежного аудиту в зарубіжних країнах . Визначено головні незалежного аудиту. Метою статті є дослідження теоретико-методологічних, організаційних аспектів незалежного аудиту в зарубіжних країнах, виявлення сучасних проблем та пошук шляхів їх вирішення. У дослідженні, визначено та перелічено законодавчі бази для ведення аудиторської діяльності в різних країнах. Розглянуто особливості проведення незалежного аудиту в зарубіжних країнах, що діють на сьогодні. Визначено основні світові стандарти аудиту у світі, та розкрито їх сутність та відмінності. Узагальнено спільні причини аудиту в зарубіжних країнах та розглянуто різноманітний підхід у різних країнах до розв'язання цих проблем. Проаналізовано спільні та відмінні риси принципів організації, місії, завдань та здійснення незалежного аудиту у різних країнах світу. Розглянуто та охарактеризовано етичний стандарт UK FRC. Охарактеризовано стандарти незалежності аудиторів в Японії. Перелічено закони Швеції про аудиторську діяльність. Розкриті положення ICAEW. Розглянута побудова системи аудиту за міжнародними стандартами в Європейському Союзі. Охарактеризовані останні нововведення у сфері незалежного аудиту у різних країнах світу. Розкриті особливості незалежного аудиту в США. Перелічені типи аудиторів в США. Розкриті особливості незалежного аудиту в каїнах латинської Америки. Розглянуті та описані порушення незалежного аудиту у різних країнах. Наведені шляхи вирішення за для зменшення порушень в аудиті. Розглянуті та запропоновані способи вирішення та уникнення порушення незалежного аудиту. Зроблено та узагальнено висновки. Практичне значення дослідження полягає в порівнянні загальних і окремих стандартів незалежного аудиту, в різних країнах світу.
НЕОБХІДНІСТЬ ВПРОВАДЖЕННЯ СИСТЕМИ КОНТРОЛІНГУ НА ПІДПРИЄМСТВАХ УКРАЇНИ
Authors: Дем’яненко Т. І.
Published: April 2023

У статті наведено результати досліджень з таких питань, як аналіз теоретичного та практичного контролю, а також обґрунтування важливих інструментів ефективності управління та впровадження на підприємствах України. У сучасних мінливих умовах вітчизняний бізнес надто повільно реагує на зміни довкілля. Малі та середні підприємства страждають від цієї проблеми і тому потребують негайного вирішення. Зважаючи на це, було б корисно впровадити на підприємства такий сучасний інструмент, як система контролю, що тісно пов'язане з великою потребою у вдосконаленні системи управління, підвищення швидкості реагування та гнучкості організації на зміни довкілля. Саме використання контролю дає можливість визначати пріоритетні напрями діяльності на підприємства, контролювати витрати та планування, економно витрачати ресурси та сировину, знижувати витрати та шукати альтернативні шляхи використання обмежених фінансових ресурсів, що згодом призведе до скорочення собівартості продукції та позитивно впливає на прибуток. підприємства. Використання контролінгу означає виконання низки послідовних кроків, ефективність кожного з яких можна оцінити відразу після виконання. Тому використання системи управління на підприємствах дуже важливе для ефективної роботи, оскільки дозволить раціонально використовувати ресурси компанії. Впровадження системи контролінгу на підприємства орієнтоване на перспективу, тобто її завдання полягає не тільки в обліку фактичних витрат або отриманих доходів, а й у забезпеченні підприємства повною та якісною інформацією для прийняття рішень. планування майбутніх доходів та витрат. Наведено перешкоди для запровадження системи контролю в українських підприємствах. Пропонуються шляхи подолання цих перешкод. Пояснено результати та перспективи впровадження. За результатами дослідження виявлено кілька завдань, які необхідно вирішити при впровадженні контролю на підприємствах, з яких визначено основні: оптимізація управління організаційною структурою підприємств; організація ефективної системи оперативного обліку та обліку результатів; впровадження систем планування, контролю та аналізу діяльності; забезпечення мотивації працівників у підвищенні ефективності підприємств; автоматизація систем обліку та управління на підприємств України.
ІНТЕЛЕКТУАЛЬНА СИСТЕМА ПІДТРИМКИ ПЛАНУВАННЯ ВИГОТОВЛЕННЯ ПРОДУКЦІЇ МІЖ ХЛІБОПЕКАРСЬКИМИ ПІДПРИЄМСТВАМИ
Authors: Ліманська Н. В. , Грибков С. В. , Костіков М. П.
Published: April 2023

У роботі запропоновано інтелектуальну система підтримки планування виготовлення продукції між хлібо-пекарними підприємствами. Враховуючі специфіку хлібопекарських підприємств, запропоновано математична модель отримання прибутку. Модель враховує логістичні особливості при розподіленні замовлень між декількома підприємствами цієї галузі. В роботі розглянуто комплексну задачу врахування постачання потрібної сировини на відповідні заводи, а також постачання готової продукції до замовників. Запропонована математична модель дозволяє сформувати план виконання замовлень із урахуванням усіх операцій технологічного процесу при виготовленні продукції. Вона також дозволяє коригувати та оцінювати ефективність виконання замовлень залежно від об’єктивних та суб’єктивних переваг, наданих особою, що приймає рішення, а також забезпечує як урахування, так і виключення певних часткових критеріїв залежно від певної ситуації. Модель дає змогу оцінити та побудувати оперативно-календарний план виконання замовлень. Запропонована структура інформаційної системи дає можливість поєднати використання модифікованих алгоритмів та методів, заснованих на комбінуванні алгоритмів, які також були проаналізовані в роботі, а також цілої низки класичних підходів. У системі передбачено можливість підібрати сукупність алгоритмів і методів, що збільшує сферу застосування. Запропонована інтелектуальна система швидко формує оперативно-календарний план виконання замовлень із мінімізацією витрат, спрямований на максимізацію прибутку; дає змогу зменшити логістичні витрати, дозволяючи отримувати більш якісну продукцію з мінімальним часом очікування; дає змогу оперативно коригувати існуючий календарний план замовлень, реагувати на замовлення в реальному часі та забезпечувати оптимальне використання технологічного обладнання; значно збільшує ефективність використання сировини та матеріалів, а також забезпечує мінімізацію витрат на їх зберігання; забезпечує швидке реагування при виникненні негативних та позаштатних ситуацій шляхом внесення відповідних змін до поточного плану виконання замовлень.