bluuebunny/crossref_metadata_2025 huggingface dataset:
MECHANISM OF ORGANIZATION MANAGEMENT ON THE BASIS OF FORMATION OF MARKETING STRATEGY
Authors:   Vyatka State University», Kirov Region, Russia, Sozinova Anastasia A. , Lutoshkina Anna K. ,   Vyatka State University», Kirov Region, Russia, Saveliev Mikhail V. ,   Vyatka State University», Kirov Region, Russia, Palkin Alexander V. ,   Vyatka State University», Kirov Region, Russia, Burtseva Tatyana A. ,   Vyatka State University», Kirov Region, Russia; Moscow Witte University Moscow, Russia
Published: May 2024

The purpose of the study is to develop the management of the organization through the application of marketing strategy. The article studies the fields of competitive strategy of the organization, including: leadership and minimization of costs; specialization in production, as well as fixation of market segment. Conceptual approaches to formation of marketing strategy have been systematized. It has been revealed that the variety of approaches to formation of marketing strategy is due to the plurality of researchers in this field. The step-by-step approach chosen covers all approaches to strategy formation to some extent. This provision defined the scientific basis for developing a marketing strategy by identifying the successive stages of strategy formation, taking into account the use of a digital approach to the formation of a marketing strategy. It presents consecutive main stages of formation of marketing strategy on the basis of analysis of consumer activity: preliminary; organizational and managerial; final. Each stage is a set of actions and possible tools for its implementation. The proposed organizational mechanism allows to use as a basis for formation of marketing strategy of the organization. Taking into account the obtained results, the role and place of formation of marketing strategy in the management cycle of the organization have been determined. The relevance of the study is proved by the formation of the marketing strategy of the organization, which affects the increase of the socio-economic potential of the organization as a whole. In the course of the study, an analysis of the scientific literature was conducted, the works of Russian and foreign scientists in the field of formation of marketing strategy were studied, as a result of which it is possible to conclude that that there are multiple approaches to the organizational mechanism of formation of marketing strategy. At the same time, the most developed step-by-step approach, which determined the further study of the organizational mechanism in the form of the phased formation of the marketing strategy, which can be attributed to: 1. planning the goals and activities of the organization (setting organizational goals; planning activities); 2. Implementation and monitoring of plans (decision-making and implementation of plans; monitoring of implementation); 3. Monitoring and analysis of results; 4. Adjustment of plans and /or objectives.
THE PROBLEMS OF IMPLEMENTING CLUSTER POLICY IN THE INDUSTRIAL SECTOR OF THE RUSSIAN ECONOMY
Authors:   Moscow state academy of veterinary medicine and biotechnology of K. I. Scriabin, Moscow, Russia, Mindlin Yuriy B.
Published: May 2024

The study is devoted to the problems of implementing cluster policy at Russian industrial enterprises in modern unstable conditions. In particular, such problems of cluster policy implementation as the problem of insufficient financing of industrial clusters, difficulties in attracting private capital, limited deadlines set for reporting industrial cluster participants on the use of public funds for financing; the problem of imperfection of the regulatory framework for regulating cluster policy in industry are considered in detail; problems of infrastructure development of industrial clusters. Within the industrial clusters themselves, problems such as the lack of qualified personnel for cluster development, as well as the uneven distribution of benefits among cluster participants, generating distrust between them, were noted. All the identified problems often contribute to the collapse of the cluster in the short term. The article also presents possible solutions to these problems. For the successful implementation of cluster policy, an integrated approach is needed, involving the improvement of legislation, stimulating investment in clusters, infrastructure development and training of qualified personnel, which will maximize the potential of the cluster model of economic development. Taking into account the proposed recommendations can significantly reduce the risks associated with government financing of industrial clusters and partnerships within the cluster, and ensure their sustainable development.
ON THE POTENTIAL OF RES DEVELOPMENT IN KAZAKHSTAN
Authors:   St. Petersburg State University of Economics, St. Petersburg, Russia, Sitov Igor P. , Gromskaia Natalia A. ,   St. Petersburg State University of Economics, St. Petersburg, Russia
Published: May 2024

Recently, the issue of sustainable economic development is tightly connected with the theme of “green transition” and reducing the carbon footprint. Kazakhstan, as one of the key states of Central Asia, has also not abandoned the idea of decarbonization and the transition to renewable energy sources. The potential of renewable energy in Kazakhstan is significant compared to the global level. Nevertheless, its full implementation contradicts economic expediency and, taking into account the requirements of energy security, is not the most effective solution to achieve the goals of carbon neutrality of the Republic.
ECONOMIC SCHOOLS IN THE DEVELOPMENT OF SPATIAL ORGANIZATION OF RUSSIAN REGIONS
Authors:   Financial University, Moscow, Russia, Zagorodnov Mikhail A.
Published: May 2024

The article presents the results of the analysis of economic concepts in the framework of the study of the spatial organization of the regions of Russia. As a result of the research, the content of the regional space is revealed through the prism of economic concepts, their features are identified and presented within the framework of public administration as a necessary and relevant tool for the socio-economic development of the country.
ROBOTICS AS AN INCENTIVE FOR THE DEVELOPMENT OF THE RUSSIAN FAR EAST
Authors:   Kazan State Power Engineering University, Kazan, Russia, Malev Nikolay A. , Akhmadeev Ravil R. ,   Ufa University of Science and Technology, Ufa, Russia, Batyrshin Kamil I. ,   Ufa University of Science and Technology, Ufa, Russia
Published: May 2024

This article discusses the development of robotics as a strategic industry. A retrospective analysis of the development of robotics in Russia was carried out, as well as the experience of the countries of the Asia-Pacific region on the robotization of the economy was analyzed. It is becoming categorically obvious that the use of robots is necessary to create an accelerated pace of economic development of the country. Based on the factors considered, it is substantiated that the Russian Far East is a priority region for the development of this industry.
ORIGIN AND CORRELATION OF VARIABLES IN SOME BOREHOLES OF BUI DIVISION IN THE NORTH WEST REGION OF CAMEROON
Authors:   University of Dschang, Fondzenyuy Vitalis , Fondzenyuy Lionel
Published: May 2024

Multivariate data with inherent complexity can be simplified and interpretation eased with application of the Principal Component Analysis (PCA), while retaining trends and patterns. Huge data is reduced to fewer dimensions, maintaining the intrinsic relation between the variables. Sample bottles were cleaned and rinsed with the water sample from the boreholes, and finally filled to the brim to avoid any atmospheric oxidation. The samples were taken immediately to the Laboratory for physico-chemical analysis. The Boreholes were BH1 (Oku subdivision), BH2 (Mbven subdivision), BH3 (Nkum subdivision), BH4 (Jakiri subdivision) and BH5 for Kumbo subdivision. The PCA had application of the Software Package for Social Sciences SPSS), that converted the complex variables obtained from the analysis, at different periods and sites into a correlation matrix. Pearson’s correlation matrix applied in this work, reduced the data in correlation circles that were a range of geometrical projections from higher to lower dimensions. There was no strong correlation between the different variables indicating that they function independently. Most of the correlation values lie between +/- 0.29 and 0.1 which indicated a low degree of correlation. Nonetheless, absence of correlation never existed between the correlated pairs as no value of zero was obtained. Sixty-six variables were correlated, with 31 having a positive correlation, whereas 35 were negative. Consequently, 46.96 % variables had positive correlation and 50.04% with a negative correlation. The positive correlation values indicated a common source with the variables evolving similarly. A negative correlation of -0.185897 was expressed between Ca2+ and HCO3- within the boreholes. A negative correlation of pH with EC (-0.032559) and other anions (NO3- ; -0.137635, Cl-; -0.091810, SO42- ; -0.111072) indicated a decrease in pH (acidification) which can be linked to an increase in the mineralization process that increase anions into the milieu. The pairs of exchangeable bases; Na+- Ca2+; (0.138758) Na+- K+, (0.412315) had positive correlations which indicated that; increasing or decreasing of the concentration of cations was probably a combination of anthropogenic inputs and other processes governed by chemical reactions. An exception was with Na+- Mg2+ pair that gave an anomaly with a negative correlation (-0.090762). The anomaly was ignored because the low correlation coefficient was insignificant. The findings from this work enabled the origins of ions in the boreholes to be identified and related.
EVALUATION OF WATER SOURCES IN KUMBO MUNICIPALITY, NORTH WEST REGION OF CAMEROON: A FUNCTION OF HYDROGEOCHEMICAL AND BACTERIOLOGICAL STUDIES
Authors:   University of Dschang, Fonfo Vitalis , Nyanchi Lionel
Published: May 2024

The water quality of some water sources in Kumbo municipality of Bui division in the Northwest Region of Cameroon were analysed to obtain physico-chemical and bacteriological parameters suitable for drinking, domestic and agricultural needs. A total of 34 water samples were collected. Water samples from a water catchment in 2016 and 2017, were sampled. In 2018, six boreholes (BH), six streams (ST), eight open wells (OW), and eight rivers (RW) were sampled. Major ions, heavy metals and bacteriological content were analysed. Ca2+ was the dominant cation in order Ca> Mg >Na and K. The dominant anion HCO3- was followed by NO3-, SO42- and Cl-. The chloride had an insignificant value in the water sources. The main water were; Ca-HCO3, Ca-Mg-HCO3 and Ca-Mg-HCO3-NO3. Silicate minerals, weathered mainly by acidolysis highly controlled the concentration of major ions in the water sources. A negligible concentration for the heavy metals was recorded within the water sources. This expressed an absence of aspects and sources that could introduce heavy metals into the water source environment in Kumbo. Fe2+ that readily converted into Fe3+ and Al3+ were witnessed in the water sources. The Sodium Absorption Ratio, Total Dissolved Solids, Residual Sodium Carbonate, Magnesium Hazard, Permeability Index, Percent sodium, pH, temperature, and electrical conductivity were some parameters analysed. They all fell within acceptable domains for their uses with reference to standard norms such as the World Health Organisation, Swiss, Bureau of Indian Standards, United States Salinity Laboratory, and the European Union. Total Hardness had a value that deviated greatly in all the water sources in comparison to the WHO (2004) norm. The water sources had values that expressed their suitability for irrigation. Bacteria identified in all of water sources and suggested their unsuitability. Drinking water, imperatively ought to be treated to eliminate possible bacteria. Lithology and human activity within the proximity of the water sources greatly compromised water quality. Proper management methods must be implemented to suitably and sustainably maintain and control water quality as an indispensable resource.
Cayenne Pepper Seed Partnership Sustainability Strategy (Case Study of "You Seed" Company Jember East Java)
Authors: Hasanah Alfina Uswatun , Sudarko Sudarko , Suciati Luh Putu
Published: May 2024

Jember is one of the Cayenne pepper-producing districts in East Java. It is among the top 10 cayenne pepper producers in East Java and has the potential to contribute raw materials for cayenne pepper seeds. One of the superior seed-producing companies in Jember Regency is PT. Benih Unggul Sejati or You Seed Company. The company partners with cayenne pepper farmers in Jember to get raw seed materials. The higher demand for seeds is a problem, namely the farmers' lack of raw seed materials in stock. Farmers often provide seeds from their cayenne pepper harvest in quantities below the target set by the company. The sampling method uses a total sampling of 28 respondents. The data collection method uses observation, interview, and literature study methods. The research methods used are descriptive and quantitative. The results of the study are the sustainability strategy of the partnership that exists between the company PT. Benih Unggul Sejati and cayenne pepper seed farmers, namely the company strengthening emotional relationships with partner farmers through increasing the frequency of visits to partner farmers' land; the company provides capital loan assistance of up to 50% of the total cost of cayenne pepper farming expenses to partner farmers; utilizing waring technology in the cayenne pepper cultivation process; expanding the sales market for cayenne pepper seeds both nationally and internationally and cooperating with fellow IPBH member companies.
Socioeconomic Profile of Coconut Farmers in Sei Kepayang Tengah Village Asahan Regency (Analysis of Education, Housing and Income)
Authors: Panjaitan Budi Rahmah
Published: May 2024

Coconut farmers play a crucial role in Indonesia’s rural economy. Therefore, understanding their socioeconomic conditions is vital for developing appropriate development strategies. This study examines the socioeconomic conditions of coconut farmers in Sei Kepayang Tengah Village, Asahan Regency, North Sumatra. It is hoped that the research results will become empirical evidence that can be used by the local government to develop programs that pay attention to the natural resource potential of coconut plantations in Sei Kepayang Tengah—stage—at the same time, the socioeconomic conditions of coconut farmers are a vital consideration in development planning and local economic development. In 2020, the research involved 65 households as samples out of 434 Sei Kepayang Tengah Village households. The research variables include education, housing conditions, and income. Data collection was carried out through interviews and analyzed descriptively. The results indicate that most coconut farmers have a secondary education and good housing conditions, but their income generally falls below the Regional Minimum Wage.
Improved Driving Training-Based Optimization Algorithm Using Levy Flight and Crowding Distance Techniques
Authors: Kwegyir Daniel , Terkper Michael Dugbartey , Effah Francis Boafo , Anto Emmanuel Kwaku , Lumor Stacy Gyamfuah
Published: May 2024

This study presents an improved version of the Driving Training-Based Optimization (DTBO) algorithm, the Improved Driving Training-Based Optimization (IDTBO). The work addresses fundamental issues in selecting drivers and learners for the conventional DTBO, which substantially impact the algorithm's accuracy and convergence speed. Two significant improvements are proposed: including the crowding distance technique for more diverse driver and learner selection and incorporating the Levy Flight distribution for better exploration and local optima avoidance. The IDTBO's performance is evaluated using twelve benchmark functions, including unimodal and high-dimensional multimodal optimization functions. The results indicate that IDTBO performs exceptionally well, with more extraordinary exploitation ability on unimodal functions and consistent achievement of the global optima. The proposed IDTBO demonstrated exceptional exploration capabilities on high-dimensional multimodal functions and performed competitively with other algorithms in the literature. From six functions, the IDTBO obtained zero optimal values. Again, the rate of convergence analysis demonstrates that IDTBO finds optimal solutions in fewer iterations, demonstrating its capacity to balance exploration and exploitation. To assess the strength of the IDTBO in solving real-world problems, the improved DTBO is further tested on two practical benchmark engineering problems. The IDTBO again produced a competitive performance against other algorithms in the literature. The study shows that IDTBO is a valuable metaheuristic algorithm that can tackle various real-world optimization problems.
Leveraging Digital Innovations in Tourism Marketing: A Study of Destination Promotion Strategies
Authors: Kumar Adarsh , Barua Dr. Chandra Shekhar
Published: May 2024

In the contemporary landscape of tourism marketing, the advent of digital innovations has significantly transformed promotional strategies for destinations worldwide. This study delves into the nuanced approaches and impacts of leveraging digital technologies in destination promotion. Through a comprehensive analysis of existing literature and case studies, the research highlights the multifaceted dimensions of digital innovations in enhancing tourism marketing efforts. The Study begins by outlining the evolving role of digital technologies in shaping tourism promotion strategies, emphasizing their capacity to reach diverse audiences and engage potential visitors effectively. It further examines the integration of social media platforms, augmented reality, virtual reality, and other digital tools into destination marketing campaigns, elucidating their effectiveness in captivating and immersing audiences in unique travel experiences. Moreover, the study explores how destination marketers navigate challenges and capitalize on opportunities presented by the digital landscape, including issues related to data privacy, content authenticity, and algorithmic visibility. By synthesizing empirical findings and theoretical frameworks, the research offers insights into best practices and emerging trends in digital tourism marketing.This study contributes to a deeper understanding of how destinations can harness digital innovations to craft compelling narratives, foster visitor engagement, and ultimately drive sustainable tourism growth. It underscores the imperative for destination marketers to embrace digital transformation and adapt their strategies in alignment with evolving consumer behaviors and technological advancements.
Exact Computing Multiplier Design using 5-to-3 Counters for Image Processing
Authors: B Perumal , A Balamanikandan , S Jayakumar , N Ashok Kumar , K Saranya
Published: May 2024

This work presents a novel approach to improve the area and energy efficiency of 5:3 counter, a key element used in digital arithmetic. To provide an effective substitute for addition operations, mostly in the partial product reduction stage of larger multipliers, this study suggests a new 5:3 counter. The Input Shuffling Unit (ISU) is employed within the proposed 5:3 counter to minimize gate-level implementation and path delay during partial product reduction in 16-bit and larger multipliers, thereby enhancing area and energy efficiency. Consequently, there are 84% fewer choices of input-output combinations, thereby decreasing the circuit complexity with respect to area and energy usage. When compared to its existing counterparts, the suggested 5:3 compressor improves area utilization and energy usage by an average of 11%, 17%, and 17% in 8-, 16-, and 32-bit multipliers, respectively. The results of simulations demonstrate the superiority of our method over traditional designs, providing an increase in both area and energy efficiency. These results highlight the applicability and scalability of our method, which is appropriate for a variety of applications such as embedded systems and digital signal processing.
A Switched Z-Source and Switched Capacitor Multi-Level Inverter Integrated Low Voltage Renewable Source for Grid Connected Application
Authors: Sreenu Sapavath , Upendar Dr. J
Published: May 2024

Most of the renewable sources generate power at lower voltage levels in the range of 20-50V which cannot be utilized by the loads. Therefore, stacking multiple modules in series increases the voltage level or using conventional boost converter or QZSis helpful. However, due to series stacking and boost converter or QZS there is a great power loss and also have reliability issues.The QZS inverter has very less boosting gain in the range of 2times. Theconventional boost converter or QZSis replaced with SZSC for voltage boosting and inverter operation. The SZSC boosts the voltage 4-5 times to the input voltage level. For further mitigation of harmonics, the conventional 6-switch inverter is replaced with switched capacitor MLI. Multiple renewable sources are at the input which include PV array, battery unit and PMSG wind module. The battery unit is a support to the renewable sources PV array and wind module. The DC link voltage stability is achieved by the battery unit placed in parallel to the renewable sources. The renewable sources share power to the grid through the SZSC and switched capacitor MLI. For DC voltage stability a CV control is integrated to SZSC. And for synchronized power sharing to the grid, a grid voltage feedback synchronization control is included for the control of MLI. A low rating renewable system is modelled and integrated to grid using Simulink MATLAB software. A comparative analysis is carried out operating the system with QZS and SZSC. The performances of the SZSC and MLI are evaluated by the graphs generated by the simulation of the modelled system.
The Influence of Cooperative Learning Model with Course Review Horay Type to Improving Physics Learning Outcomes
Authors: Rahmani Wilda , Hamid Abdul , Kasli Elisa
Published: May 2024

This study raises the problem of low student learning outcomes in physics subjects, the lack of student activity, and enthusiasm during learning. This Study aims to determine the effect of the Course Review Horay on physics learning outcomes. The population of this study were all students of class XI IPA MAN 4 Aceh Besar consisting of two classes. Sampling was taken using a total sampling technique with 32 students as the experimental class and 36 students as the control class. Data collection was carried out using test instruments, namely pre-test and post-test. The data analysis technique uses the N-Gain test to see the difference in the increase in student learning outcomes in the experimental class and the control class, then the data is analyzed using the t test to see the effect of the course review horay type cooperative learning model on the physics learning outcomes of MAN 4 Aceh Besar students. Based on the results of data analysis, it was obtained that the N-Gain for the experimental class was 0.78, which was included in the high gain index category, while the N-Gain for the control class was 0.69, which was included in the medium gain index category. The results of data analysis using the t-test show that tcount 2.292 > ttable 1.668. Thus it can be concluded that there is an influence of the cooperative learning model type course review horay on the physics learning outcomes of MAN 4 Aceh Besar students (tcount > ttable).
Enhancing Students' Creative Thinking Skills in Equilibrium and Rotational Dynamics Through The Implementation of Project Based Learning Modules
Authors: Noorhalida Noorhalida , Santiani Santiani , Annovasho Jhelang
Published: May 2024

The world of education requires students who are able to create and develop new ideas. Creative thinking needs to be done, because it can improve the quality of student learning. Project-based learning is an effective learning model for encouraging creative thinking. By implementing PjBL in the classroom, teachers can help students achieve success in the future. This research aims to determine the increase in creative thinking of high school students with project learning modules on balance and rotation dynamics. This research is quantitative descriptive. The method used is one-group pre-test – post-test design. Data collection techniques use questionnaires, observations and tests. This research was carried out at SMAN 5 Palangka Raya class XI MIPA 3 with three meetings. The research results show that: 1) The learning tools in the research are very suitable for use with a value of 0.85 for the module, 0.80 for the RPP and 0.92 for the questions. 2) The learning model implemented can be implemented very well, as seen from the percentage of implementation sheets for 3 meetings of 100% in the first meeting, and 91.6% in the second and third meetings which is categorized as very good, 3) There is an increase in creative thinking in students SMA from the use of project learning modules, balance material and rotation dynamics seen from the pre-test and post-test data which shows the calculated t value < t table.
Transforming Escalation to Negotiation: Rethinking Confidence-Building Measures (CBMs) in the Ongoing Russia-Ukraine War
Authors: Idowu Saliu Akeem
Published: May 2024

There have been several pieces of literature on the current war between Russia and Ukraine but little emphasis has been placed on transforming the growing escalation into negotiation. In this study, I discuss the causalities that surround the current war between the Russian Federation and Ukraine from different prisms. Various justifications and other indices which provide the likelihood of escalation to a nuclear conflict were touched. Also, I assessed, if at all, there was politics behind the supplies of ‘defensive weapons’ and other military aid to the warring parties. I propose an urgent arms control treaty not only between the United States and Russia but should also include China as the emerged third force, and other minor nuclear powers. Although, the Confidence Building Measures (CBMs) are mostly prominent before a complex conflict is transformed into conventional war, thus, this study suggests the roles the CBMs can still play in the current war. As such, the study relies on relevant written sources which make the study qualitative in nature.
Utilitasi Buah Maja menjadi Pupuk Organik dan Bahan Pengendali Alami Cair di Dusun Pettungnge
Authors: Rosdaliani Andi , Trisnowali Andi , Asfar Andi Muhammad Irfan Taufan , Asfar Andi Muhamad Iqbal Akbar , Nurannisa Andi , Wahdania Wahdania , Harahap Topan Arya
Published: May 2024

Permasalahan buah maja di Dusun Pettungnge, Desa Maggenrang menjadi permasalahan yang krusial dan harus segera dipecahkan, dimana buah maja hanya dibiarkan begitu saja bahkan dibuang ke sungai yang dapat menyebabkan pencemaran air sungai. Padahal buah maja memiliki senyawa yang sangat potensial dijadikan sebagai produk pupuk organik dan bahan pengendali alami, seperti senyawa nitrogen, alkaloid, flavonoid dan sebagainya, sehingga dengan kegiatan ini akan memberikan solusi kepada mitra Kelompok Pemuda HIPMA Desa Maggenrang dalam memanfaatkan buah maja menjadi pupuk organik dan bahan pengendali alami. Metode pelaksanaan dalam kegiatan PKM-PM yaitu terdiri atas tiga tahapan utama yaitu tahapan penyuluhan dan sosialisasi, tahapan pelatihan, dan tahapan pendampingan. Tahapan sosialisasi dilakukan dengan seminar singkat mengenai pemanfaatan buah maja menjadi bahan pengendali alami dan pupuk organik. Tahap pelatihan dimulai dengan pelatihan pembuatan produk, pengemasan, pelabelan, dan edukasi pemasaran produk bahan pengendali alami dan pupuk organik serta produk sekunder berupa kerajinan tangan yaitu lampu hiasan. Terakhir tahap pendampingan produksi dan evaluasi peningkatan pengetahuan serta keterampilan mitra. Kegiatan PKM-PM ini dilaksanakan 15 Juni-15 November 2023 oleh mitra Kelompok Pemuda HIPMA Desa Maggenrang yang beranggotakan 25 orang laki-laki. Adapun hasil yang diperoleh menunjukkan adanya peningkatan pengetahuan dan keterampilan mitra Kelompok Pemuda HIPMA Desa Maggenrang terkait pengetahuan mitra dalam memanfaatkan buah maja, produksi buah maja, dan pemasaran dengan peningkatan masing-masing sebesar 90% untuk kemampuan mitra dalam memanfaatkan buah maja, 90% pada kemampuan pembuatan pestisida nabati dan pupuk organik, dan 80% pada pengetahuan mitra dalam pemasaran. Selain itu, dengan peningkatan keterampilan mitra ini dapat juga membangun jiwa wirausaha mitra sekaligus mewujudkan Sustainable Development Goals (SDGs) desa sehat dan sejahtera.
Taxonomic contribution to knowledge of the oribatid mite subfamily Arcoppiinae (Acari, Oribatida, Oppiidae)
Authors: Ermilov Sergey G.
Published: May 2024

This study is based on oribatid mites of the subfamily Arcoppiinae (Oribatida, Oppiidae) collected from rainforest litter in Izabal Department, Guatemala. A new species of Arcoppia—A. tetraramosa sp. nov.—is described. In having several long, barbed branches of the bothridial seta and comparatively long dorsal notogastral setae, the new species is similar to A. dechambrierorum and A. serrulata, but can be distinguished from both by the morphology of the rostrum, the length of dorsal notogastral setae, the sculpturing of basal part of the prodorsum, the length of the costula, and the presence of the specific ridge-like structure in front of the transcostula. A supplementary description of Wallworkoppia cervifer is presented and its main morphological traits are summarized.
Recomendações de Manejo para Matrizes de Frangos de Corte Criadas nas Regiões Norte e Nordeste do Brasil
Authors: Silva Alex Laurindo , Bandeira Jéssica de Torres , Rocha Priscilla Maria Cavalcante , Morais Renato Souto Maior Muniz de , Pereira Iza Jamile Moreira , Calderano Arele Arlindo , Evêncio Neto Joaquim
Published: May 2024

As regiões Norte e Nordeste apresentam clima favorável o ano inteiro para a agricultura e produção animal. Diante deste cenário, a produção avícola ganha destaque e vem apresentando crescimento um ano após o outro. A produção avícola nas regiões vem da década de 70 e 80, onde predominavam os galpões abertos com ventilação positiva, os quais apresentam particularidades no manejo. O objetivo deste trabalho é descrever e caracterizar as recomendações práticas de manejo, tidas como pontos chaves no manejo de matrizes pesadas nas regiões. O frango de corte é um produto hibrido duplo, oriundo do cruzamento comercial, composto por três ou quatro linhas acasaladas em uma determinada ordem, separadas em estratos. As empresas detentoras do material genético disponibilizam comercialmente apenas as matrizes (hibrido simples) com o objetivo de proteger a origem genética. As práticas de manejo recomendadas para matrizes começam antes mesmo da chegada das aves aos núcleos de produção, isso envolve o preparo do aviário e a vacinação no incubatório de origem até o descarte da última matriz com 65 – 70 semanas, quando deixa de se aproveitar o ovo fértil. Diante de cada realidade na qual a atividade está inserida, as recomendações de manejo devem ser adaptadas com objetivo de suprir cada demanda específica, garantindo os melhores resultados e proporcionando maior competitividade e viabilidade para a atividade.
Será a preocupação empática dos enfermeiros uma questão de género?
Authors: Antunes Maria , Ribeiro Maria , Carvalho Amâncio
Published: May 2024

Enquadramento: o Enfermeiro de família deve focar-se na família, enquanto sistema e em cada um dos elementos que a constituem. Daí a importância da empatia como habilidade comunicacional. Objetivos: avaliar a preocupação empática dos enfermeiros da amostra e analisar a relação entre a preocupação empática e as caraterísticas sociodemográficas. Metodologia: trata-se de um estudo descritivo-correlacional, transversal, com uma amostra de 87 enfermeiros, a quem foi aplicado um questionário. O procedimento de recolha de dados foi realizado pelos investigadores durante o mês de janeiro de 2019. Para o tratamento de dados foi utilizado o software IBM SPSS, tendo recorrido à estatística descritiva e inferencial. O nível de significância considerado foi de 5%. Resultados: do total da amostra (n= 87), a maioria era do sexo feminino (79%) e enquadrava-se no grupo etários dos 39 anos ou menos (54%). A maioria dos enfermeiros apresenta um bom nível de Preocupação Empática. A Preocupação Empática dos enfermeiros difere significativamente entre os enfermeiros de sexo diferente (t de Student: p ≥ 0,004), sendo que as mulheres obtiveram uma média mais elevada, apresentando maior Preocupação Empática. Conclusão: a Preocupação Empática dos enfermeiros pode considerar-se boa, sendo que as mulheres apresentaram maior grau de empatia do que os homens.
Investigational Analysis and Experimental Study of a 3-phase Induction Motor for Electric Bike Application
Authors: Tak Ansh , Makwana Shivom , Patel Manish , Yagnik Riddhesh
Published: May 2024

With the advent of global warming and rapid incentivization of electric vehicles being manufactured, research on new and efficient models of the same becomes highly imperative to offer innovative solutions to fundamental issues that limit the market penetration. The current Indian Electric Two-wheeler (E2W) segment utilizes limited motor technologies pertaining to the need of permanent magnets. This work aims to reduce this need by investigating the use of the Asynchronous AC motor as an alternative to magnet motors and experiment with their respective drive system for feasibility of operation. The study proves the hypothesis of a more efficient and cost friendly alternative for an E2W powertrain.
CIRCULAR ECONOMY AND FUZZY SET THEORY: A BIBLIOMETRIC AND SYSTEMATIC REVIEW BASED ON INDUSTRY 4.0 TECHNOLOGIES PERSPECTIVE
Authors: Gou Xunjie , Xu Xinru , Xu Zeshui , Skare Marinko
Published: May 2024

The Circular Economy (CE) is receiving more attention, especially in Industry 4.0 (I4.0). In the face of several ambiguous and uncertain information, fuzzy techniques based on Fuzzy Set Theory (FST) are essential for developing CE strategies. This paper uses bibliometric methods to analyze the characteristics of the authors, nations/regions, institutions of the literature of FST and CE, and the collaborations relations between them, and then summarize the literature on fuzzy techniques in the CE and identify the specific role that FST can play in each stage of CE, its primary effects on the CE’s pre-preparation stage, design and production stage, and recycling and reuse stage. Meanwhile, the paper explores the advantages of I4.0 technologies for CE and analyzes the research on the role of fuzzy techniques based on FST for CE and I4.0 technologies. Last but not least, this paper is concluded by summarizing the knowledge gained from the bibliometric and content analyses of the literature and suggesting further research directions of investigation. This research will draw attention to FST’s contribution and encourage its advancement in CE and I4.0 technologies.
Wave Reflection in the Solar Atmosphere
Authors: Chaturmutha Varun , Fleck Bernhard , Jefferies Stuart M.
Published: May 2024

We present evidence supporting wave reflection in the lower solar chromosphere based on helioseismic analysis of multi-height Doppler data from the Solar Dynamics Observatory/Helioseismic and Magnetic Imager and the Magneto-Optical filters at Two Heights II instrument. This evidence is derived through a wave propagation model that incorporates both upward- and downward-traveling (reflected) waves. Moreover, we find that the height of the reflecting region varies with magnetic field strengths in a way that suggests a connection with the plasma β ∼ 1 region. We measure an effective reflection coefficient of 13% in a magnetically quiet region of the Sun.
The Effects of r-Process Enrichment in Hydrogen-rich Supernovae
Authors: Patel Anirudh , Goldberg Jared A. , Renzo Mathieu , Metzger Brian D.
Published: May 2024

Core-collapse supernovae (SNe) are candidate sites for rapid neutron capture process (r-process) nucleosynthesis. We explore the effects of enrichment from r-process nuclei on the light curves of hydrogen-rich SNe and assess the detectability of these signatures. We modify the radiation hydrodynamics code, SuperNova Explosion Code, to include the approximate effects of opacity and radioactive heating from r-process elements in the supernova (SN) ejecta. We present models spanning a range of total r-process masses M

r
and their assumed radial distribution within the ejecta, finding that M

r
≳ 10−2
M
⊙ is sufficient to induce appreciable differences in their light curves as compared to ordinary hydrogen-rich SNe (without any r-process elements). The primary photometric signatures of r-process enrichment include a shortening of the plateau phase, coinciding with the hydrogen-recombination photosphere retreating to the r-process-enriched layers, and a steeper post-plateau decline associated with a reddening of the SN colors. We compare our r-process-enriched models to ordinary SNe models and observational data, showing that yields of M

r
≳ 10−2
M
⊙ are potentially detectable across several of the metrics used by transient observers, provided that r-process-rich layers are mixed at least halfway to the ejecta surface. This detectability threshold can roughly be reproduced analytically using a two-zone (kilonova-within-an-SN) picture. Assuming that a small fraction of SNe produce a detectable r-process yield of M

r
≳ 10−2
M
⊙, and respecting constraints on the total Galactic production rate, we estimate that ≳103–104 SNe need be observed to find one r-enriched event, a feat that may become possible with the Vera Rubin Observatory.
Discovery of Optically Emitting Circumgalactic Nebulae around the Majority of UV-luminous Quasars at Intermediate Redshift
Authors: Johnson Sean D. , Liu Zhuoqi (Will) , Li Jennifer I-Hsiu , Schaye Joop , Greene Jenny E. , Cantalupo Sebastiano , Rudie Gwen C. , Qu Zhijie , Chen Hsiao-Wen , Rafelski Marc , Muzahid Sowgat , Chen Mandy C. , Contini Thierry , Kollatschny Wolfram , Mishra Nishant , Petitjean Patrick , Rauch Michael , Zahedy Fakhri S.
Published: May 2024

We report the discovery of large, ionized, [O ii]-emitting circumgalactic nebulae around the majority of 30 UV-luminous quasars at z = 0.4–1.4 observed with deep, wide-field integral field spectroscopy with the Multi-Unit Spectroscopy Explorer (MUSE) by the Cosmic Ultraviolet Baryon Survey and MUSE Quasar Blind Emitters Survey. Among the 30 quasars, seven (23%) exhibit [O ii]-emitting nebulae with major axis sizes greater than 100 kpc, 20 greater than 50 kpc (67%), and 27 (90%) greater than 20 kpc. Such large, optically emitting nebulae indicate that cool, dense, and metal-enriched circumgalactic gas is common in the halos of luminous quasars at intermediate redshift. Several of the largest nebulae exhibit morphologies that suggest interaction-related origins. We detect no correlation between the sizes and cosmological-dimming-corrected surface brightnesses of the nebulae and quasar redshift, luminosity, black hole mass, or radio-loudness, but find a tentative correlation between the nebulae and rest-frame [O ii] equivalent width in the quasar spectra. This potential trend suggests a relationship between interstellar medium content and gas reservoirs on CGM scales. The [O ii]-emitting nebulae around the z ≈ 1 quasars are smaller and less common than Lyα nebulae around z ≈ 3 quasars. These smaller sizes can be explained if the outer regions of the Lyα halos arise from scattering in more neutral gas, by evolution in the cool circumgalactic medium content of quasar-host halos, by lower-than-expected metallicities on ≳50 kpc scales around z ≈ 1 quasars, or by changes in quasar episodic lifetimes between z = 3 and 1.
Revisiting the Vertical Distribution of H i Absorbing Clouds in the Solar Neighborhood
Authors: Wenger Trey V. , Rybarczyk Daniel R. , Stanimirović Snežana
Published: May 2024

The vertical distribution of cold neutral hydrogen (H i) clouds is a constraint on models of the structure, dynamics, and hydrostatic balance of the interstellar medium. In 1978, Crovisier pioneered a method to infer the vertical distribution of H i absorbing clouds in the solar neighborhood. Using data from the Nançay 21 cm absorption survey, Crovisier determined the mean vertical displacement of cold H i clouds, 〈∣z∣〉. We revisit that author’s analysis and explore the consequences of truncating the H i absorption sample in Galactic latitude. For any nonzero latitude limit, we find that the quantity inferred by Crovisier is not the mean vertical displacement but rather a ratio involving higher moments of the vertical distribution. The resultant distribution scale heights are thus ∼1.5 to ∼3 times smaller than previously determined. In light of this discovery, we develop a Bayesian Monte Carlo Markov Chain method to infer the vertical distribution of H i absorbing clouds. We fit our model to the original Nançay data and find a vertical distribution moment ratio 〈∣z∣3〉/〈∣z∣2〉 = 97 ± 15 pc, which corresponds to a Gaussian scale height σ

z
= 61 ± 9 pc, an exponential scale height λ

z
= 32 ± 5 pc, and a rectangular half-width W

z,1/2 = 129 ± 20 pc. Consistent with recent simulations, the vertical scale height of cold H i clouds appears to remain constant between the inner Galaxy and the Galactocentric distance of the solar neighborhood. Local fluctuations might explain the large-scale height observed at the same Galactocentric distance on the far side of the Galaxy.
The Most Distant H i Galaxies Discovered by the 500 m Dish FAST
Authors: Xi Hongwei , Peng Bo , Staveley-Smith Lister , For Bi-Qing , Liu Bin , Chen Ru-Rong , Yu Lei , Ding Dejian , Guo Wei-Jian , Zou Hu , Xue Suijian , Wang Jing , Brink Thomas G. , Zheng WeiKang , Filippenko Alexei V. , Yang Yi , Wei Jianyan , Dai Y. Sophia , Li Zi-Jian , He Zizhao , Jiang Chengzi , Moiseev Alexei , Kotov Sergey
Published: May 2024

Neutral hydrogen (H i) is the primary component of the cool interstellar medium (ISM) and is the reservoir of fuel for star formation. Owing to the sensitivity of existing radio telescopes, our understanding of the evolution of the ISM in galaxies remains limited, as it is based on only a few hundred galaxies detected in H i beyond the local Universe. With the high sensitivity of the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we carried out a blind H i search, the FAST Ultra-Deep Survey, which extends to redshifts up to 0.42 and a sensitivity of 50 μJy beam−1. Here, we report the first discovery of six galaxies in H i at z > 0.38. For these galaxies, the FAST angular resolution of ∼4′ corresponds to a mean linear size of

∼
1.3

h

70

−
1

Mpc. These galaxies are among the most distant H i emission detections known, with one having the most massive H i content (

10

10.93
±
0.04

h

70

−
2

M

⊙

). Using recent data from the DESI survey and new observations with the Hale, Big Telescope Alt-azimuth, and Keck telescopes, optical counterparts are detected for all galaxies within the 3σ positional uncertainty (

0.5

h

70

−
1

Mpc) and 200 km s−1 in recession velocity. Assuming that the dominant source of H i is the identified optical counterpart, we find evidence of evolution in the H i content of galaxies over the last 4.2 Gyr. Our new high-redshift H i galaxy sample provides the opportunity to better investigate the evolution of cool gas in galaxies. A larger sample size in the future will allow us to refine our knowledge of the formation and evolution of galaxies.
SpyderZ: An Efficient Support Vector Machine Library for Photometric Redshift Estimation and Redshift Probability Information
Authors: Agarwal Vikhyat , Singal Jack , Gyure Christine
Published: May 2024

We present SpyderZ, a Python-based library for photometric redshift estimation using support vector machines (implemented with scikit-learn). Our approach discretizes redshift values into uniformly-sized bins and uses one-vs-one support vector classifiers with voting strategies to produce effective probability density functions (ePDFs) over redshift for each galaxy. These ePDFs, which are not constrained to be Gaussian or any other shape, allow for our model's predictions to be used quantitatively with uncertainty analysis methods, and have been shown to enable reliable catastrophic outlier detection. Adapted from the previous IDL package SpiderZ, SpyderZ offers training and evaluation speed optimizations on the order of 102, along with support for parallelization across CPU cores. Our library also offers in-built data sanity checks, result visualizations, metric calculations, cross validation, batch evaluations, and parallelized hyperparameter search (grid search and random search).
Increasing the Usability and Accessibility of Voyager 2 Images of Triton
Authors: Bland Michael T. , Martin Emily S. , Patthoff Alex
Published: May 2024

Much of what we know about Neptune’s moon Triton was inferred from the analysis of images returned by the Voyager 2 mission, the only spacecraft to have visited that putative ocean world. Unfortunately, the highest-resolution images (scales < 2 km pixel−1) are difficult to use because they are only available in nonstandard formats, and the locations of the images on Triton’s surface are incorrect by up to 200 km. Although image mosaics of Triton are publicly available, these do not include the highest-resolution data. Here we describe our effort to improve the usability and accessibility of Voyager 2 images of Triton. We used the USGS’s ISIS software to process 41 Triton images, including geometric calibration, radiometric calibration, and reseau removal. We improved the image locations using a photogrammetric control network with 958 points and 3910 image measurements. Least-squares bundle adjustment of the network yielded rms uncertainty of 0.50, 0.52, and 0.51 pixels in latitude, longitude, and radius, respectively, and maximum residuals of −4.21 and +3.20 pixels, respectively. Image-to-image alignment is therefore vastly improved. We have released these processed images as cloud-optimized GeoTIFFs in orthographic projection at the original pixel scale of each image. Associated mosaics have also been created and released to provide geologic context for the individual images. These products provide the science community with analysis-ready data that enable new investigations of Triton, increase accessibility to this unique data set, and continue to enhance the scientific return from the Voyager 2 mission.
Primula weiliei (Primulaceae), a new species from Hubei, Central China
Authors: Yang Lin-Sen , Wu Zhi-Kun , Liang Hong-Wei , Zhang Meng-Hua , Zhang Xian-Chun , Peng Shuai , Hu Guang-Wan
Published: May 2024

In this study, we describe and illustrate a new species, Primula weiliei L.S.Yang, Z.K.Wu & G.W.Hu, from the Shennongjia Forestry District, Hubei Province in Central China. It is morphologically assigned to Primula sect. Aleuritia based on its dwarf and hairless habit, long petiole, fruits longer than calyx and covered by farina on the scape. This new species is similar to P. gemmifera and P. munroi subsp. yargongensis in the same section, but it can be distinguished by its smaller calyxes, homostylous flowers, corolla tube throat without annular appendage and only 1–2 flowers in each inflorescence. Based on the assessment conducted according to the IUCN Red List criteria, we propose that P. weiliei be classified as a Critically Endangered (CR) species.