bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effects of exercise intervention in postmenopausal obese women: A Systematic Review and Meta-Analysis
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Yun Sun-Jeong , Kim Gaeun
Published: May 2023

Objectives This study is a systematic review and meta-analysis study to confirm the characteristics and effects of domestic exercise intervention programs for health promotion in postmenopausal obese women.
Methods This study investigated literature published in academic journals published in Korea until August 2022. The search was conducted through four databases: Korean Studies Information Service System (KISS), Research Information Sharing Service (RISS), Korean Medical Papers Database, and National Assembly Library. Based on the inclusion and exclusion criteria, the final 4 RCT papers were analyzed. For the selected literature, the effect size was calculated using RevMan 5.4.
Results As a result of the analysis, it was confirmed that exercise intervention in postmenopausal obese women had significant effects on body fat percentage -8.96 and body mass index -1.50. In addition, significant effects of exercise were found on systolic blood pressure -6.91, total cholesterol -5.30, triglyceride -3.00, low-density lipoprotein -22.13, high-density lipoprotein 2.26, and blood glucose -10.66.
Conclusions With the development of modern medicine, the average life expectancy of women is increasing, and the risk of obesity after menopause is increasing due to various reasons such as long-term hormonal changes. Therefore, by confirming the effect of exercise intervention on postmenopausal obese women, this researcher will be able to use it as evidence for the development of educational programs for obesity prevention and health promotion exercise for subjects in the community.
Analysis of Research Trends and Quality Indicators on the interventions for elementary school children with ADHD in Korea
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Ha MyungSook , Ji Eun
Published: May 2023

Objectives Domestic studies related to intervention programs for children with ADHD in elementary school are reviewed, and based on this, a direction for developing and applying effective intervention programs is sought.
Methods In order to know the research trend of interventional intervention for children with ADHD in elementary school studied in Korea, research literature was searched and papers were selected, focusing on domestic academic journals studied from 2009 to December 2022. For this purpose, 41 selected studies were analyzed according to the thesis analysis framework, and the evidence-based intervention was reviewed by analyzing the qualitative indicators of group-subject studies and single-subject studies.
Results As a result of the research analysis, the number of students in the lower grades (1 to 3) was higher than that in the upper grades (4 to 6), and it can be seen that there are many studies targeting boys. In previous studies, there was no detailed description of the intervention site and intervention environment. As for the intervention research program, many art activity-based intervention studies were provided, and analysis according to the dependent variable involved a number of studies on the cognitive and behavioral aspects of children with ADHD. As for the qualitative indicators of group targeting intervention research programs, there was a lack of studies that satisfied performance, operator's information technology, and comparative group's teaching skills. As for the qualitative indicators of single-subject intervention research programs, there were insufficient studies that satisfied the environmental description, description of measurement validity, baseline measurement of the dependent variable, and description of the baseline period.
Conclusions The study suggests that intervention studies of children with primary school ADHD need to be designed to increase the reliability and validity of the studies, and to clarify the description of the subjects' intervention environment. Through the results of this study, studies reflecting this should be conducted in the future by considering the evidence-based analysis of the effectiveness and qualitative indicators of interventions for children with ADHD in elementary school.
Exploring the Types of Relationship Perceptions between ‘Ecological Education’ and ‘Environmental Education’ of Ecology-Environment Education Instructors: Focusing on Language Game and Life Forms
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Baek Su-Bok , Hwang Hyojeong , Lee Jun-Ki
Published: May 2023

Objectives The purpose of this study is to explore how ecology-environment education instructors perceive the relationship between ‘ecological education’ and ‘environmental education’ based on Wittgenstein's concept of the language game and whether there are differences in relationship perception types depending on their background variables.
Methods 57 ecology-environment education instructors participated in the study, and a questionnaire was organized to select a Van diagram that matches one's thoughts among the types of relationships between ecological education and environmental education and explain why.
Results As for the types of perception, “ecological=environmental”, “ecological⊃environmental”, “ecological⊂environmental”, and “ecological∩environmental” appeared in the order of frequency. However, even with the same type of response, there were various reasons for choosing. Through this, it was confirmed that while recognizing a common area in values and content knowledge between ecological education and environmental education, it has various perceptions in everyday language according to individual experiences and backgrounds. There was no difference in perception of relationship types according to gender, career period, age group, and final academic level.
Conclusions It was confirmed that there is a family resemblance between ecological education and environmental education by exploring various types recognized by ecology-environment education instructors as language game concepts. In addition, it suggested the need to continuously pursue diversity and expand education.
A Study on the Experiences of Chinese Counselors in Korea: Focused on Chosun Chinese and Han Chinese
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, An Ximei
Published: May 2023

Objectives The purposes of this study were to explore in-depth the experiences of Chosun Chinese and Han Chinese counselors living in Korea, based on their counselor development stages, through a narrative study on the experiences of Chinese counselors in Korea.
Methods The study utilized the narrative research method, one of the qualitative research methods, and conducted individual in-depth interviews as the main method of data collection, targeting two Chosun Chinese and Han Chinese counselors who are currently living and working as counselors in Korea.
Results The results of this study were divided into three chapters: “The Seed is Planted”, “Wherever I Fly”, and “To Bloom a Flower”. The first chapter revealed the themes of “A True Gateway of Encounter”, “Choice and Focus”, “Volitional Interest”, and “Turning a Corner”. The second chapter revealed the themes of “The Place I Want to Stay”, “What the Unfamiliar Brings”, “The Beautiful Role”, and “Finding Balance”. The third chapter revealed the themes of “My Wounds are Also Flowers”, “It Was Not Me, But It Had to Be Me”, “From Doubt to Conviction”, and “Unexpected Encounters.”
Conclusions Based on the research results, the researcher compared and analyzed the participants by theme, such as “Interest: Before Minds Meet”, “Facing Oneself”, and “Respect for Differences”, and discovered the significance of the experiences of Chinese counselors living in Korea, in terms of choosing and living their paths as counselors in the context of their continuous lives, in addition to the counselor development theory. The researcher also provided suggestions based on the practicality, reflection, and on-site nature pursued by narrative research, for the reconstitution of the sincere stories and experiences of foreign counselors working in Korea.
A Proposal for Standardization of the Division of Works among Three Occupational Types in Schools and the Establishment of Institutional Mechanisms
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim Ki Woo , Hong Sub Keun , Lee Jong Soo
Published: May 2023

Objectives This study aims to propose policy measures for standardizing the division of work and establishing institutional mechanisms in order to suggest alternatives regarding the division of work among teachers, administrative staffs, and non-fixed term workers (teaching support workers, administrative support workers, etc.) in schools.
Methods To the purpose, we used prior literature researches, office of education’s data, Korean education statistics service data, online 263 questionnaires on the division of duties of three occupations in schools, and FGI for the relevant expert groups (16 people).
Results As a result, specific tasks with insufficient the division of works turned out to be low-income families support work, CCTV related work, safety work, recruitment work for fixed-term workers etc. If these works are listed, they are not consistently in charge of a specific occupation in the school's work list, and even they are not listed in many cases. Therefore there is a great need to standardize the division of works.
Conclusions We have proposed several points of policy measures as follows. First, the problem of division of works needs to be dealt with in conjunction with the reduction of the total amount of work of school workers. Secondly, standardization of the division of works among three occupational types should be achieved above a certain level. Thirdly, a certain degree of autonomy should be required at the school level. Lastly, existing trade unions in each occupational types should participate in consultative bodies. At this time, in order to reduce the total amount of work, it is necessary to conduct a fact-finding survey on work in schools and eliminate unnecessary work that has no need to be carried out.
TOPSIS technique supplier selection in a case study in the Maquiladora Industry in Ciudad Juarez
Authors: Camacho-Acosta Jaqueline , Pérez-Domínguez Luis Asunción , Herrera-Rubio Jorge Enrique , Linares-Gil Mayra Verónica , Madrid-Solozarno Juan Manuel
Published: May 2023

With the use of this method, it was demonstrated how important it is for the company to know how to select a reliable supplier when we require raw material for our work process The Topsis methodology was applied because it is a practical method and the most appropriate to solve this problem. At the moment of applying this methodology, we generated which are the levels of importance that the company requests to select one of them, more than anything are factors or points that each company chooses for a better management of its resources, thus taking care of the part of time and money. In the industry where this observation will be made, the main levels of importance requested are the following: Quality, Time, Price and Reliability of the supplier.
Institutional and non-institutional actors in policy-making processes: A case study
Authors: Brovina Ngadhnjim , Arifi Dritero
Published: May 2023

This article examines the role and importance of institutional and non-institutional actors in Kosovo’s foreign policy processes. It is based on a review of official documents, non-governmental organization (NGO) research and academic literature, using a research method of material analysis. The paper’s findings reveal Kosovo’s challenges in its policy-making processes and emphasise the essential role of international factors and NGOs. The article provides a comprehensive understanding of the challenges and importance of Kosovo’s foreign policy and the role and influence of institutional actors, such as the ruling party and opposition parties, and non-institutional actors, such as international actors and NGOs. The results emphasise the need for the engagement and support of the international community in Kosovo’s foreign policy efforts. In conclusion, the paper contributes to the ongoing discussion on the policy-making processes in Kosovo and its foreign policy. Judah (2012) emphasised that for Kosovo to have a successful foreign policy, it must have a flourishing internal (domestic) policy because one cannot be successful without the other. The article emphasises the importance of considering institutional and non-institutional actors in the policy-making processes in Kosovo.
Friedrich August von Hayek, a komplexitáselmélet úttörője?
Authors: Lovász Ádám
Published: May 2023

Friedrich August von Hayek egy interdiszciplináris szintézis megalkotására vállalkozott. Célja a liberalizmus normatív igényeinek az alátámasztása volt, korszerű tudományos fogalmakkal. Ezirányú vizsgálódásai korai írásokra datálhatók. Jelen tanulmány keretén belül eddig alulértékelt Hayek-szövegeket fogunk szemügyre venni. Ezek demonstrálják, ahogyan Hayek az 1950-es és 1960-as évektől kibontakozó kibernetikát és komplexitáselméletet alkalmazzak saját politikafilozófiai modelljének megalkotásához. Sőt, Hayeket a komplexitáselmélet úttörőjeként is jellemezhetjük. A liberális elvek mentén szervezett, nagymértékben önműködő „Nagy Társadalom” (Great Society) Hayek szerint azért előnyösebb a központi gazdasági tervezéssel operáló alternatíváihoz képest, mert bonyolultabb és komplexebb rendet képez. Nézetében a komplexitás pozitívumként értékelendő, mivel az egyéni cselekvők számára nagyobb fokú szabadságot biztosít, ugyanakkor (az információs visszacsatolásnak köszönhetően) a decentralizált gazdasági cselekvésekből szövődő hálózati gazdasági modell kiterjedtebb struktúraként képes fennállni, jobban hasznosítva az információkat. Hayek a társadalmat információs rendszerként képzeli el. A komplexitásnak mindazonáltal negatív formái is elgondolhatók.
Reduced Gas Bubble Adhesion on Superaerophobic Nickel Metal Surface Enables Highly Efficient Hydrogen Evolution Reaction
Authors: Sun Qian , Hao Xiaoyu , Cheng Hao , Wang Fenghe , Zhang Tianyi , Zhang Dina , Ma Zelin , Liu Xuqing , Yang Ming , Huang Xiaolei
Published: May 2023

Electrocatalytic water splitting is crucial for the development of the
renewable energy industry. However, gas bubble attachment to the
electrode surface has severely limited the electrochemical performance.
In this study, we develop a superaerophobic nickel-based catalyst by
electrodeposition onto pencil-drawn non-conducting A4 paper. We reveal
that phosphorus (P) doping in the nickel metal causes lattice
contraction and cracked electrode surface, creating a superaerophobic
electrode surface, as supported by first-principles calculations and
surface tension measurement. The improved catalytic performance results
from the superaerophobic electrode surfaces with minimal gas bubble
adhesion, outperforming commercial Pt plates, particularly at higher
current densities. P-doping also enhances the corrosion resistance of
the electrode to the electrolyte and contributes to its structural
stability. Our findings suggest a promising strategy for developing
highly efficient electrocatalysts with improved stability.
Silicon Atom Doping in Heterotrimetallic Sulfides for Non-noble Metal Alkaline Water Electrolysis
Authors: Mohamed Barakat Zakaria Hegazy , Bahri Leila , David Tetzlaff , Sanden Sebastian , Apfel Ulf-Peter
Published: May 2023

This study investigates the modification of materials by doping with
foreign elements to enhance electrocatalytic activity and focuses on the
engineering of an inorganic material composed of transition
heterometal-rich pentlandite (Fe3Co3Ni3S8, FCNS) doped with silicon
(FCNSSi) as a bifunctional catalyst for the overall electrochemical
water splitting process. The FCNSSi electrode exhibits remarkable
catalytic activity for oxygen evolution reaction (OER) and hydrogen
evolution reaction (HER). The OER performance of FCNSSi was evaluated in
a 1.0 M KOH solution, achieving an overpotential of 313 mV at 10 mA
cm-2. The FCNSSi electrode exhibits a current density of -10 mA cm-2 at
a remarkably low overpotential of 164 mV with a Tafel slope of 80.7
mV/dec in HER. Density functional theory (DFT) calculation suggests that
Si doping adjusts the binding energies of intermediates on the surface,
which weakened the *OH, *O, and *OOH adsorption energies, resulting in
enhanced activity for both OER and HER. Moreover, Si doping enhances the
hydrogen adsorption activity of all sites. Finally, a two-electrode
zero-gap cell assembly was used to investigate the durability of FCNSSi
catalyst towards efficient and durable alkaline water electrolysis,
demonstrating the promising potential of this catalyst for practical
applications at 500 mA cm-2.
Communicating with families of young people with hard-to-treat cancers: Healthcare professionals’ perspectives on challenges, skills, and training
Authors: Kelada Lauren , Robertson Eden , McKay Skye , McGill Brittany , Daly Rebecca , Mazariego Carolyn , Taylor Natalie , Tyedmers Elijah , Evans Holly E. , Wakefield Claire , Ziegler David
Published: May 2023

Background: Hard-to-treat childhood cancers are those where
standard treatment options do not exist and prognosis is poor.
Healthcare professionals (HCPs) are responsible for communicating with
families about prognosis and complex experimental treatment. We aimed to
identify HCPs’ key challenges and skills required when communicating
with families about hard-to-treat cancers, and their perceptions of
communication-related training. Method: We interviewed
Australian HCPs who had direct responsibilities in managing
children/adolescents with a hard-to-treat cancer within the past 24
months. Interviews were analysed using qualitative content analysis.
Results: We interviewed 10 oncologists, 7 nurses, and 3 social
workers. HCPs identified several challenges for communication with
families including: balancing information provision while maintaining
realistic hope; managing their own uncertainty; and nurses and social
workers being under-utilised during conversations with families, despite
widespread preferences for multidisciplinary teamwork. HCPs perceived
that making themselves available to families, empowering them to ask
questions, and repeating information helped to establish and maintain
trusting relationships with families. Half the HCPs reported receiving
no formal training for communicating prognosis and treatment options
with families of children with hard-to-treat cancers. Nurses, social
workers, and junior oncologists supported the development of
communication training resources, more so than senior oncologists.
Conclusion(s): Resources are needed which support HCPs to
communicate with families of children with hard-to-treat cancers. Such
resources may be particularly beneficial for junior oncologists and
other HCPs during their training, and should aim to prepare them for
common challenges, and to foster greater multidisciplinary
collaboration.
Discrete ADRC method based on improved fal function and its application
Authors: Qin Yao , Yang Jie , Wang Yongzhuang , Zhou Fazhu
Published: May 2023

In this paper, to address the problem that the traditional fal function
constitutes an active disturbance rejection control (ADRC) system that
is greatly affected by feedback signal noise and the control output has
jitter, propose a continuous and smooth Hfal function in the definition
domain to improve the extended state observer and nonlinear error
feedback control law in ADRC. Firstly, the characteristic curves and
error gain curves of the fal function and Hfal function are compared and
analyzed to prove the feasibility and superiority of the Hfal function;
secondly, the convergence condition of the extended state observer
improved by the Hfal function is analyzed theoretically, and the
simulation of the improved extended state observer with glan , faln ,
and tanh function is compared in the observed signal containing noise to
verify the improved extended state observer with Hfal function has
higher observation accuracy; finally, the improved ADRC (IADRC) method
is applied to the magnetically levitated sphere system model with a
nonlinear, large time lag and strong coupling characteristics for
discretization simulation experiments, and the results show that the
proposed IADRC method solves the output jitter problem of the
traditional ADRC method, has better stability, and has stronger
robustness to large-amplitude control quantity step disturbances and
feedback link noise. The proposed control method further improves the
control performance of the system and has a good reference value for the
control of other nonlinear systems with uncertain disturbances.
Pediatric Systemic Juvenile Idiopathic Arthritis related Lung Disease: Description of clinical cohort and review of management.
Authors: Tam-Williams Jade , Swanson Chandra , Cooper Ashley , Ibarra Maria , Khan Erin
Published: May 2023

Beginning in the early 2010s, an increased incidence of interstitial
lung disease in systemic juvenile idiopathic arthritis (sJIA-LD) in
pediatric patients has been identified. Despite the increase in
prevalence of sJIA-LD, little is known about this disease process and
effective therapeutic management. In this single-center, retrospective
case series of 9 patients, we analyze demographic, clinical,
radiographic, and laboratory data to corroborate common clinical
characteristics and describe an approach for diagnosis and monitoring of
interstitial lung disease in children with sJIA. Our results were
similar to other described cases of sJIA-LD as patients in our cohort
were more likely to be younger, have a history of macrophage activation
syndrome and prior use of biologic therapies. In contrast to prior
studies, they did not present with lymphadenopathy and
hepatosplenomegaly. We discuss our management of this rare disease
process. More research is necessary to understand the increased
incidence and treatment of sJIA-LD in pediatric population.
Model-based Optimization of Single Pass Tangential Flow Filtration (SPTFF) of Monoclonal Antibodies
Authors: Buddhiraju Venkata Sudheendra , Bhange Yukta , Chakraborty Arnab , Masampally Vishnu Swaroopji , Runkana Venkataramana
Published: May 2023

Single-pass tangential flow filtration (SPTFF) is a key operation in
biopharmaceutical downstream processing for in-process volume reduction,
and for achieving a higher final concentration than conventional
ultrafiltration processes. The performance of SPTFF also impacts the
overall process yield. A model-based multi-objective optimization
framework is proposed for determining the optimum configuration of
membranes connected in series or parallel inside a multistage SPTFF
module for maximising the volume concentration factor (VCF) and the
throughput. The resistance-in-series model is used for predicting the
permeate flux. Single objective optimization was performed to determine
maximum achievable VCF and throughput over wide ranges of feed flow rate
and transmembrane pressure using the Particle Swarm Optimization. A
non-dominated sorting-based genetic algorithm was used for
multi-objective optimization to determine the optimum operating
parameters for maximum throughput as well as maximum VCF. The
optimization results were validated with published experimental data. A
mixed variable multi-objective optimization framework was applied to
obtain the optimal membrane configuration by minimizing the number of
membranes while maximizing VCF and throughput; and for a given
configuration of SPTFF, a set of optimal operating conditions were
identified. These optimization results provide useful guidelines and
insights for designers and plant operators to achieve cost-effective and
efficient ultrafiltration.
role of national spiritual values in children’s reading-teaching (based on Nakhchivan Children’s Folklore and new teaching methods)
Authors: Ismayilova Nazakat
Published: May 2023

The main goal here is the collection and teaching of children's literature in the Nakhchivan region, which is an integral part of Azerbaijan. This is important for all stages of education (both in secondary schools and higher education). In Nakhchivan region, in addition to research and scientific-theoretical problems of children's literature, the collection and study of children's folklore has also been proposed. In particular, this article talks about important issues such as reading, learning, researching based on new methods in the process of children's education. Our national values have been preserved for years, passed down from generation to generation, from century to century. From this point of view, we think that this research article will be useful in learning new methods of teaching.
Macroregion as an environment for ensuring interregional integration
Authors: Skibin S. A.
Published: May 2023

The most important characteristics and principles of the formation of macro-regions as one of the forms of implementation of approaches to ensuring interregional integration are considered. The most important role of the effects of specialization and diversification as the basic conditions for ensuring interregional interaction in the macro-regional space is substantiated. As a tool for im-proving the efficiency of interregional integration processes within the region, the creation of pol-yclusters is considered — integrative institutions reflecting a combination of interrelations of key elements that are the concentration of a set of competitive advantages of the macroregion.
Implementation of the innovative paradigm of ensuring eco-safe development of the region in modern conditions
Authors: Cheshev A. S. , Melenkin V. L.
Published: May 2023

Aspects of ensuring eco-safe development of regions are considered. The essential content of the concept of "ecological safety", principles and directions of ensuring eco-safe development of the territory are analyzed. Special attention is paid to substantiating the need to ensure the innovation orientation of this development in the context of the formation of such institutional forms of in-teraction of parties interested in ensuring the effectiveness of this process, as eco-innovation clus-ters and eco-technoparks.
Eco-oriented digitalization of agricultural production activities within the framework of the concept "Agriculture 4.0"
Authors: Polyakov V. V.
Published: May 2023

The key aspects of the practical implementation of the concept "Agriculture 4.0" are considered, the basic paradigm of which is the active use of digital technologies that lay the foundation for the introduction of qualitatively new approaches to the organization of agricultural enterprises. At the same time, it is stated that the practical implementation of the ideas laid down within the frame-work of this concept allows not only to increase the efficiency of agricultural production activities, but also to contribute to ensuring its greening.
Determination of the coordinates of the axis of engineering communications by satellite method
Authors: Ovchinnikova N. G. , Nicenko I. A.
Published: May 2023

The satellite method of determining coordinates has both positive and negative sides. The main advantages of using satellite methods for determining coordinates are high productivity, speed of processing and obtaining results, automation of the process, no need for line of sight, laying points in convenient places, a wide range of accuracy, round-the-clock use, the ability to determine coordinates and heights simultaneously.

When using satellite equipment to determine coordinates, some disadvantages can be identified: the inability to use near reinforced concrete buildings, structures, canopies, in the foliage of trees that impair signal reception, as well as signal distortion near ground-based radio signal sources, the inability to use satellite equipment underground, dependence on weather conditions and the occurrence of errors, related to the rereflection of the satellite signal from surrounding objects.
Teachers' Efforts in Developing Responsible Student Characters
Authors: Hajariah Siti , Ayu Sovia Mas , Hijriyah Umi
Published: May 2023

Responsibility is one of the mandates of the 2013 Curriculum for social attitude competencies. Learners who have responsibility will certainly complete their learning tasks seriously, which will affect their learning outcomes. Therefore, it is important to improve the responsibility of students at school. This study aims to determine the efforts of Islamic Religious Education teachers in improving the character and sense of responsibility of students at Ibnu Rusyd Islamic Elementary School in Kotabumi, North Lampung. The data obtained through interviews, observations, and documentation come from research data sources that are trusted and considered capable of answering the problems studied. The research data were analyzed in several stages, namely data reduction, data presentation, data verification, and drawing conclusions. The validity of the research data was tested by triangulating methods and triangulating sources. The results showed that teachers' efforts in fostering students' sense of responsibility were carried out through the involvement of school components. The nature of student responsibility, which includes responsibility for oneself, the environment, parents, and God, is formed through self-development and integrating responsibility character values in all subjects.
Parenting Program: Its Impact on Students' Religious Character in Integrated Islamic Elementary Schools
Authors: Susanto Susanto - , Kholid Idham , Amriyah Chairul
Published: May 2023

An effective public health approach can help evaluate the effectiveness of parenting programs in reducing child maltreatment. Parenting can show effectiveness in improving children's emotional and behavioral adjustment. Parenting programs are useful for parents to add insight and awareness about appropriate child development. The purpose of this study was to determine the effect of the parenting program on the religious character of students at Ar Rahman Jati Agung integrated Islamic elementary school. The method used is quantitative method. The sampling technique used. Purposive sampling. Data collection methods are questionnaires and documentation. The results of the f test simultaneously sig value 0.001 0.05 and the value of f count 8.469 3.16, then there is an influence of the parenting program and parenting on the religious character of students at SDIT Ar Rahman Jati Agung. The coefficient of determination test results show 22% which means that the effect is in the low category.
busca de la igualdad: la mujer, el “hombre nuevo” y las masculinidades guerrilleras en el Frente Urbano Zapatista (FUZ) (1959-1970)
Authors: Ávila Coronel Francisco
Published: May 2023

El presente artículo plantea como problema la tensión existente entre las masculinidades guerrilleras contra-hegemónicas con las masculinidades hegemónicas. Para dar cuenta de ello se explora la historia del surgimiento del Frente Urbano Zapatista (FUZ), un núcleo armado de guerrilla urbana que operó entre 1970 y 1972. Pondré atención en el fenómeno de la exclusión de las mujeres en la primera etapa de la organización armada, encontrando algunos estereotipos patriarcalistas heredados del guevarismo según los cuales se concebía a las mujeres con menores capacidades para la guerra, cuestión que justificó su exclusión en algunas acciones. En este punto se explica cómo es que los hombres se des-empoderaron y aceptaron una dirección horizontal y democrática en la que las mujeres se situaron en un plano de mayor igualdad. Se explorará qué tensiones existieron en torno a dicho proyecto igualitario y en qué medida la salida de dos miembros del grupo armado tiene trasfondos de género, que revelan el ejercicio de una masculinidad guerrillera que se resistía al predominio de las mujeres en las decisiones políticas y militares.
Constitucionalización del Derecho Aduanero
Authors: González López Jully Pauliny
Published: May 2023

En el año 1991, Colombia transformó su modelo de Estado con la adopción de una nueva Constitución, esto permitió que las diferentes ramas del Derecho debieran sujetarse a los parámetros axiológicos propuestos bajo el Estado Social de Derecho, toda vez que el artículo 4 de la carta magna señala que ninguna norma del ordenamiento jurídico puede estar en contravía con la misma. La constitucionalización trajo como consecuencia una interpretación de las normas ajustada a estos postulados, principios y valores.  Ante este panorama, el derecho civil, penal, comercial entre otros se han desarrollado bajo la influencia de los postulados constitucionales.  En lo referente al Derecho Aduanero su desarrollo se ha marcado por la influencia del derecho tributario, aspecto que suscitó diferentes posiciones por los tratadistas al determinar la autonomía del Derecho Aduanero frente a otras especialidades, sin embargo, la regulación aduanera y su desarrollo debe ajustarse a la estructura que fundamenta y orienta el Estado Social de Derecho y a aquellas disposiciones internacionales que pretenden la armonización de los procesos y trámites aduaneros, que tienen como propósito beneficiar y fomentar el comercio internacional.
Evolución del régimen jurídico de los derechos de las personas con discapacidad
Authors: Jerónimo Sánchez-Beato Estefanía
Published: May 2023

Este artículo ofrece una visión acerca de la significativa evolución del régimen jurídico que han experimentado los derechos de las personas con discapacidad. El trabajo parte de un análisis histórico de los distintos paradigmas sociales desde los que se ha abordado el tema de la discapacidad: el de exclusión, el médico o rehabilitador, y el social. A partir de ahí, se describe el actual régimen normativo de los derechos de las personas con discapacidad a nivel internacional, europeo y español; régimen inspirado, en buena medida, en la Convención sobre los Derechos de las Personas con Discapacidad, aprobada en el seno de las Naciones Unidas en el año 2006. Este trabajo pretende resaltar los notables avances que, en esta materia, ha experimentado el ordenamiento jurídico español, donde el nuevo paradigma social ha supuesto importantes novedades en múltiples sectores normativos, en los que se afronta la regulación de los derechos de las personas con discapacidad desde la inclusión, la participación y la no discriminación.
Automation of spreader operation in handling large size containers at ship’s list and trim
Authors: Shchemelev Viktor Leonidovich , Zub Igor Vasilievich , Ezhov Yuri Evgenievich
Published: May 2023

Current development of IT technologies makes it possible to automate production processes in the transport industry. Introducing the automated systems helps reduce the downtime of vehicles under loading and unloading operations. Handling various loads or specializing in a certain cargo flow, the terminal operator selects lifting and transport equipment and the degree of its automation. Automation of lifting and transport equipment has been most developed at container terminals, because the container as a cargo unit has certain dimensions, the metal surface of the container reflects the signals of the distance sensors mounted on the cargo handling device (spreader). During the experiments, it was found out that the signal of ultrasonic sensors is reflected from the surface of ice, which can form on the container in winter, laser sensors show the distance to the surface of the container. Installation of laser sensors helps to reduce the working cycle time of lifting and transport equipment, reduce the likelihood of damage to the container. Loading and unloading operations on ships have their own specifics. In case of roll and /or trim, it is difficult to point the spreader at the container, which leads to an increase in the working cycle, therefore, the idle time of the vessel under processing. To solve the problem of reducing the working cycle time of lifting and transport equipment when unloading a vessel with a roll or trim of the vessel, a laboratory sample of the mechanism for stabilizing the spreader relative to the surface of the container has been developed. The stabilization mechanism operates according to the following algorithm: the signal from the laser sensors goes to the microcontroller, which compares the signals and then transmits the signal to the actuator, which stabilizes the spreader parallel to the surface of the container. The proposed device will increase the productivity of lifting and transport equipment when handling ships with roll and trim.
Problem of manufacturing pipes according to design information
Authors: Sakhno Konstantin , Lapeko Fedor Aleksandrovich , Tsaloev Vladimir Muratovich , Vo Trung Quang , Nguyen Thi Sen , Kalashnik Vladimir Yurievich
Published: May 2023

The article considers the problem of increasing the efficiency of shipbuilding production on the basis

of pipe manufacturing technologies by design information. The reasons that prevent the manufacture of pipes by design information and possible ways to eliminate them are analyzed. Great attention to the manufacture of pipelines is explained by the significant amount of pipeline work, which makes 10-12% of the total labor intensity of building

a ship, and on some projects - up to 14-17%. At the same time, the share of pipes manufactured in advance does not exceed 40%. The solution of the problem is considered in a historical retrospective taking into account modern realities, because the development and improvement of the technology of pipe production is one of the main important directions in the development of shipbuilding not only in Russia, but also in the world. Significant changes in the technology are associated with the widespread use of computing devices to improve the computer-aided design, technological preparation of production and the manufacture of pipelines according to design information. There has been carried out comparative analysis of pipe production efficiency using pipe bending machines, bent segments and straight sections. To form the pipe configuration, it is proposed to retain the traditional technology of pipe bending using pipe bending machines. Directions for further research in this area are identified and solutions are proposed, the implementation of which will help reduce construction time, reduce labor intensity and increase the productivity of pipeline work when fulfilling shipbuilding orders. Ensuring the reliability of design information is aimed at increasing the proportion of pipes manufactured in advance, regardless of the functional purpose of pipelines.
Prospects for introducing advanced technologies at enterprises of Southern Center of Shipbuilding and Ship Repair, JSC
Authors: Lisizki Vladimir Vladimirovich , Vasilyev Alexey Anatolyevich , Mogilko Konstantin Dmitrievich , Nosyrev Nikolai Alexeyevich , Rosov Nikolai Valerievich
Published: May 2023

The article focuses on the trends of development in modern shipbuilding in the context of digital transformation and promising national projects recommended for implementing at the enterprises of Southern Center for Shipbuilding and Ship Repair, JSC. The calculation program of shipyards, the composition and main features of the created industries are given. There is described the modern Russian technological equipment recommended for implementation at Southern Center of Shipbuilding and Ship Repair, JSC including machines with numerical control for laser and plasma cutting the sheet parts and multifunctional bending and straightening machines with a rotational-local deformation principle. Pictures of machines for thermal cutting of sheet parts with digital control of the Ritm-M and Ritm-MA-Laser types are presented (plasma and oxygen cutting machine, wide-portal plasma and oxygen cutting machine with a rotary unit for cutting edges for welding, laser cutting machine) developments of Center for of Shipbuilding and Ship Repair Technologies, JSC implemented at the branch Astrakhan Shipyard of Zvezdochka, JSC. Pictures of multifunctional bending and straightening machines of the MGPS-25 and MGPS-100 types developed by the Center for Shipbuilding and Ship Repair Technologies JSC implemented at the Astrakhan Ship Repair Plant branch of Zvezdochka, JSC, are presented. The comprehensive introduction of the latest technologies and principles of production organization at the enterprises of Southern Center for Shipbuilding and Ship Repair, JSC will reduce the labor intensity of building the ships of the calculation program by more than 2 times.
Algorithm of controlling movement of paddle vessel under wind impact
Authors: Bazylev Aleksandr Vladimirovich , Grosheva Lyudmila Serafimovna , Plyushchaev Valeriy Ivanovich
Published: May 2023

The article highlights the study of the influence of wind parameters and operating modes of the propulsion plant on the quality indicators of motion control of the vessel with a paddle type propulsion and steering system. The dynamics of the vessel motion is considered on the basis of a mathematical model of a paddle vessel. Wind action has a significant impact on the dynamic characteristics of the vessel due to its design features: flat bottom, shallow draft, large windage. The effect of apparent and true wind with both constant and variable wind parameters and operating modes of the propulsion plant is analyzed. Conclusions are drawn about the limits of the vessel controllability for various parameters of motion and wind action. The operability area of the vessel control system is constructed depending on the direction and speed of the wind. It is noted that a change in the speed of the vessel leads to a change in the parameters of the apparent wind, which in turn affects the dynamics of the vessel. To compensate for the effect of wind changes there is proposed an algorithm for changing the speed of the vessel while keeping a given optimal trajectory under wind impact. The algorithm is designed subject to the control of the ratio of the rotational speed of the propeller wheels, without taking into account the impact of the thruster. A computer simulation of the ship’s movement was performed with a changing speed of movement and different parameters of the wind effect, taking into account the proposed algorithm. The proposed control algorithm makes it possible to compensate for the effect of apparent wind in transient operating modes of the propulsion plant, to ensure movement along a given trajectory and to improve the accuracy of ship control.
Numerical Study of Contra-Rotating Vertical Axis Wind Turbine H-Rotor Darrieus Type
Authors: S. Djanali Vivien
Published: May 2023

The new Contra-rotating Darrieus turbine configuration has been invented to enhance the V ertical Axis Wind Turbine (VAWT) performance. This configuration increases the relative rotational speed of the generator, resulting in higher output power. It is well known that the increase can reach four times the output power. However, how the Darrieus turbine VAWT contra- rotating configuration influences its aerodynamic performance still needs to be discovered. This study investigates the aerodynamic performance of the contra-rotating configuration by comparing it to the single-rotating Darrieus turbine VAWT under the same conditions. The freestream speed is 5 m/s, with TSR varying from one to two intervals of 0.2. This research is being completed using Computational Fluid Dynamics (CFD) 3D cases with an Unsteady Reynold Average Navier-Stokes (URANS) equation as the turbulent model equation. The results of this study show that in terms of output power or Power coefficient (Cp), the contra-rotating has a greater value than the single- rotating configuration. However, in all TSR variations, contra-rotating outperforms single-rotating in terms of aerodynamic performance or moment coefficient (Cm). This is due to the fact that the aspect ratio of stage 1 contra-rotating rotor is lower than the single-rotating rotor, resulting in more significant blade tip losses in contra-rotating. Theflow was discovered through the gap between stages 1 and 2 contra-rotating, providing additional momentum. This phenomenon increases Cm at an azimuth angle of 200°-255°.
Effect of Rice-Husk as Replacement Cement on Mechanical Properties Concrete
Authors: Abdul Kudus Sakhiah
Published: May 2023

The cost of producing concrete has increased, and its effects on the natural environment have become apparent. The ideal solution is to use agro-waste material instead of cement in concrete. This research aims to determine how well RHA works as a cement substitute. At increments of 5%, 10%, and 15%, rice husk was applied in substitute of cement. Compressive and flexural tests were performed on a 100 mm x 100 mm x 100 mm cube and 100 mm x 100 mm x 500 mm prisms with varying percentages of RHA substitution. Findings show that the highest control sample has a compressive strength of 49.83 MPa while t The compressive strength began to drop at 5% RHA substitution. The compressive strength decreased as the percentage of RHA used increased from 10% to 15%. The flexural strength data shows that the 10% RHA has a maximum of 4.90 MPa. The lowest value is 3.85 MPa, and it is only seen from 5% of RHA. Thus, it can be inferred that an RHA replacement level of 5% in cement yields a tremendous increase in compressive strength.
Evaluating and Predicting Overall Equipment Effectiveness for Deep Water Disposal Pump using ANN- GA Analysis Approach
Authors: Al-Toubi Soud
Published: May 2023

This study proposes the Artificial Neural Network with a Genetic Algorithm analysis approach to investigate the Overall Equipment Effectiveness of the deep-water disposal pump system. The ANN-GA model was developed based on six big losses over eighteen successive months of the operating period to evaluate the current and future performance of the DWD system. 70% of the data was used for training and 15% for each data validation and testing. The DWD system faces frequent failure issues, significantly impacting its performance, so it is important to reveal the main causes of these failures to manage them properly. ANN-GA is applied to make a linear trend prediction and assesses the confidence and accuracy of the results obtained. Analysis of ANOVA (variance) was adopted as an additional decision tool for detecting the variation of process parameters. ANN-GA results showed that the current OEE value ranges between 29% to 54%, whereas the predicted future system performance average is approximately 49%, which reflects the poor performance of the DWD pump system in the future compared to the world- class target (85%). ANN-GA analysis results indicated were very close and matched with the actual values. The model framework and analysis presented are used to develop a decision support tool for managers for early intervention to minimize system deterioration, reduce maintenance costs and increase productivity. Furthermore, it allows early identifying the potential area ofimprovement to support continuous improvement (CI) objectives by identifying and eliminating unnecessary maintenance activities. The proposed model framework uses the ANN approach to identify the current state and predict the future of the system performance to ensure confidence in the results. The contribution of the paper will be helpful for experts like managers, reliability engineers, and maintenance engineers to identify the state of the system's performance in advance.
Lenguaje irrelevante y metafórico en el autismo infantil temprano
Authors: Carbone Nora Cecilia , Piazze Gastón Pablo
Published: May 2023

Este artículo apareció por primera vez en 1946 en la revista American Journal of Psychiatry con el título de “Irrelevant and metaphorical language in early infantile autism”. En 1973 se publicó en Childhood psychosis: initial studies and new insights (pp. 45-50), editado por V.H. Winston & Sons Inc., en la ciudad de Washington D.C. La presente traducción al español corresponde a esta última fuente y estuvo a cargo de Nora Carbone y Gastón Piazze. Los autores de la misma obtuvieron el permiso correspondiente de carácter no exclusivo para esta publicación electrónica por parte de John Wiley & Sons Inc.

Copyright © 1973 V. H. Winston & Sons, inc. Todos los derechos reservados.