bluuebunny/crossref_metadata_2025 huggingface dataset:
Base policial de ADN y autodeterminación informativa: el consentimiento para la obtención de muestras biológicas
Authors: Ramírez Peinado Francisco
Published: November 2023

Este estudio pretende mostrar la disfunción producida en la aplicación de la Ley Orgánica 10/2007, reguladora de la base policial de identificadores obtenidos a partir del ADN, en relación a la obtención policial de muestras biológicas de personas detenidas. A partir del carácter obligatorio y automá- tico de la inscripción de perfiles de ADN de sujetos sospechosos, detenidos o imputados (investigados), alcanzados en la investigación de los delitos predeterminados por la ley, se ha deducido un similar automatismo en la obtención de muestras biológicas provenientes de esos mismos sujetos para obtener el perfil genético inscribible, lo que afecta principalmente a personas detenidas. Esta actuación pudiera suponer una distorsión de las exigencias ligadas al consentimiento informado para dicha obtención, con vulneración del derecho fundamental a la protección de datos o de autodeterminación informativa.
Populismo: guía de uso
Authors: Peña Freire Antonio Manuel
Published: November 2023

En reseña de: De la Torre, Carlos. Populismos. Una inmersión rápida, Tibidabo Ediciones, Barcelona, 2018.
El tsunami populista
Authors: Lasalle Ruiz José María
Published: November 2023

La democracia vive estremecida desde el comienzo del tercer milenio al que se asoma la humanidad. El 11 S fue el desencadenante de una tensión íntima que debilitó los fundamentos de la Modernidad política después de la proclamación a los cuatro vientos de que la historia había finalizado. La victoria occidental en la Guerra Fría que quedó plasmada con la caída del Muro berlinés se volatilizó en un puñado de años. Desde entonces las emociones se han adueñado de la convivencia colectiva mientras que la racionalidad política ha ido siendo marginada y desplazada a un papel secundario, sino residual…
Semblanza personal y académica de Harm Peter Westermann
Authors: Albiez Dohrmann Klaus Jochen
Published: November 2023

Semblanza personal y académica del profesor alemán Harm Peter Westermann
Antagonismo, materialismo y mujer trabajadora
Authors: García López Daniel J.
Published: November 2023

Recensión de Escribano Gutiérrez, Juan. La mujer trabajadora en el derecho histórico del trabajo español. Ed. Comares, Granada, 2019, 175 páginas.
NEUTRALIDAD DEL DERECHO INTERNACIONAL PRIVADO EN CUANTO AL GÉNERO, UNA FORMA DE VIOLENCIA DE GÉNERO INSTITUCIONAL
Authors: Lara Aguado Ángeles
Published: November 2023

La incorporación de la perspectiva de género en Derecho internacional privado es difícil, por su carácter técnico y abstracto. Las autoridades que aplican estas normas intentan corregir las distorsiones generadas por la ausencia de enfoque de género en esta disciplina a través de correctivos como el orden público internacional, para alcanzar la justicia del caso concreto y proteger derechos fundamentales. Pero, estas correcciones son insuficientes para aplicar la perspectiva de género, porque no remueven los obstáculos que están en el origen de la discriminación de la mujer. La ausencia de perspectiva de género en estas normas es una forma de violencia institucional, que habilita la incorporación en el ordenamiento jurídico de normas que, pretendiendo defender la libertad de la mujer, conducen a normalizar su subordiscriminación. Es precisa una revolución del Derecho internacional privado, que vaya más allá de los efectos inmediatos de las normas reguladoras de las relaciones privadas internacionales
Elementary Teachers’ Difficulties in Team Teaching: An Exploration between Novice and Experienced Indonesian English Teachers
Authors: Tika Ade , Ginting Rita Seroja , Dewi Utami
Published: November 2023

This research aims at exploring the difficulties faced by elementary school teachers in team teaching between novice and experienced teachers. This research was conducted in some private schools in Medan. Participants consisted of 16 teachers of which 8 teachers were chosen in participating the questionnaire and interview of 4 novice teachers and 4 experienced teachers. This research used qualitative methods and took a thematic approach to its data collection. A questionnaire with open-ended questions as well as semi-structured in-depth interviews served as the research instruments. The findings of this research reveal four common themes that emerged from the responses to the questionnaire regarding the difficulties that teachers experience during the process of team teaching and the factors that contribute to those difficulties. It is necessary to conduct additional research in order to determine whether the perspectives of team teachers working in various areas are unique or equivalent.
Variation Language Content Analysis Book (A Need Analysis Study)
Authors: Chandra Eva Nurul , Widyawati Wiwik Yully
Published: November 2023

This research aims to analyse whether the “Contrastive Linguistic and Error Analysis Book” is considered relevant to the SDGs criteria. The success of the English teaching learning process will also be encouraged by the application of instructional material. Most language programs rely heavily on teaching materials. Created material is one of the materials in a university.  In this research, the writers used qualitative descriptive method. Then, the students who learned Contrastive Linguistics and Error Analysis (CLEA) and the lecturers who have taught CLEA were chosen to be the participants. The instruments used in this research were questionnaires both from student’s perspective and lecturer’s perspective. Student’s questionnaire consisted of 20 questions, and lecturer’s questionnaire consisted of 12 questions. The data collection was taken from 55 students and 8 lecturers who were given the questionnaire. Based on the results and discussion, it shows that dimension of “suit environment” from the lecturer’s perception, that the text in CLEA book is no longer suitable for this global era. Considering with Sustainable Development Goals, the CLEA textbook syllabus needs a revisiting to insert the SDGs theme in its reading text that is related with the 17 goals, such as: quality education, no poverty, zero hunger, gender equality, climate action, and many more. Since syllabus is guidance in achieving the learning objectives, it needs revisiting gradually to pursue the developing situation. The revisiting syllabus should consider both student and teacher as the practitioners of teaching and learning process. Hopefully by inserting the SDGs theme in the CLEA syllabus, student and teacher can be engaged together in creating a better life in the community.
Butlerian Theory of Performativity in Kartini: Princess of Java
Authors: Saraswati Ria , Engliana Engliana
Published: November 2023

This research examines Kartini in Kartini: Princess of Java through the lens of Judith Butler’s concepts of vulnerability and gender performativity. Butler argues that cultural norms and power structures shape individuals’ gender identities and render them inherently vulnerable to external influences. By applying Butler concepts to the stories in Kartini: Princess of Java, the article asserts that the characters not only conform to gender norms to gain recognition but also face vulnerability due to her position within societal structures. This research carried out in a qualitative framework. The analysis explored how the character performed gender roles and the implications of her actions in the social realm. The findings show that Kartini’s performative acts involves breaking free from the normative scripts assigned to women of her time. She confronts gender expectations through her outspokenness, challenging practices like early marriages and polygamy that perpetuate inequality. Her advocacy for women's education is a performative act that aims to disrupt the conventional roles of women and to open new possibilities for their empowerment. This performative activism is intricately intertwined with Kartini's vulnerability. She shares her inner struggles, aspirations, and conflicts, transcending the boundaries set by her society. Her vulnerability becomes a catalyst for social change, inspiring other women to join her cause and challenge existing norms. Kartini's willingness to embrace her vulnerability demonstrates authenticity and sincerity, making her advocacy relatable and impactful.
Investigating Critical Thinking Skills and Microlearning Integration in English Learning Material Web-Based of Eighth Graders
Authors: Rizal Rizka Patrika , Iskandar Ifan , Sulistyaningrum Siti Drivoka
Published: November 2023

Microlearning has been widely popular in English language learning. It has some potentials; critical thinking, lowering cognitive load, focusing on learning, and bridging the theory-practice gap in the 21st century learning. This research aims to investigate how critical thinking skills and microlearning-based model are integrated in the English learning material web-based of eighth graders. Qualitative content analysis was utilized as the method for this research. An English learning material web-based was analyzed by using critical thinking skills descriptors from and microlearning descriptors. The findings reveal that the English learning material web-based consists of 7 out of 11 descriptors of critical thinking and includes of 6 out of 9 microlearning descriptors. However, it is indicated that the English learning material web-based of eighth graders are not fully incorporated with the critical thinking skills and microlearning-based model.
A Content Analysis of Critical Reading Skills and Reading Passages in Critical Reading Textbook
Authors: Angkarini Tri , Susilowati Susilowati , Kusumadewi Hermariyanti
Published: November 2023

The purpose of this research is to analyze the compatibility between the critical reading skills and the reading passages in the textbook with the syllabus and global Sustainable Development Goals (SDG) topics. The method used in this research was a qualitative descriptive method that utilized the critical reading textbook as a sample. The sample of the research was taken by using a checklist and the result of the research will be shown by percentages. The results find that the textbook has 100% compatibility with all of the criteria in the syllabus and has only 47.05% compatibility with the SDGs topics. It means that this textbook is recommended to be used as one of the teaching references in critical reading courses but the authors are suggested to construct some adjustments so that students will get the latest reading material as the times change which is related to SDGs in order to foster the students’ awareness, empathy, and compassion in facing global issues.
A Study on Exploring the Innovation and Development of Audio-Visual Language Learning Media
Authors: Novitri Safriyani , Zaim M. , Thahar Harris Effendi , Risqiani Diyah Ayu
Published: November 2023

The use of audio-visual components in educational materials has received a lot of attention due to the emphasis on efficient language learning methods. This study aims to investigate the innovation of audio-visual language learning media in the creation of cutting-edge audio-visual language learning materials and to analyze how it affects language learning and student engagement. The sample consisted of 25 students from second-year students majoring in English Department of Faculty and Education class B at Islamic University of Riau during the academic year 2022-2023. In order to gain a better understanding of the experiences, preferences, and suggestions for improvement of the learners, qualitative data was obtained through note-taking and observation. The results of this study help students understand the materials using audio-visual language learning and offers helpful suggestions for students, creators, and multimedia projects on how to successfully incorporate audio-visual components into language learning resources. The findings of this study could help motivate students and produce effective and interesting learning materials for language learners.
Students’ Perception on Utilization of Technology in Listening Learning
Authors: Sudewi Putu Wahyu , Isma Adi
Published: November 2023

The learning process in listening practice is only limited to one type of text. Students have difficulty adapting to various types of audio material. Learning focuses more on speaking and writing skills than listening. As a result, students are less trained in active listening. A deep understanding of these issues helps to develop more effective learning strategies and supports students in overcoming these obstacles. Technological developments in education have influenced students' learning styles. This research aims to describe how students perceive the utilization of technology, specifically podcasts, to enhance their listening skills. The research employed a qualitative research method, specifically a case study, to gather data through questionnaires and interviews. The participants were EFL learners focusing on Listening for Professional Purposes, with 40 students completing the questionnaires and 10 representative students being interviewed. Findings reveal that students had a favorable response to utilizing podcasts as a means of enhancing their listening skills. They appreciated the simplicity, flexibility, engagement, and enjoyment of employing podcasts as media of learning. Findings from this research help lecturer develop curriculum and learning materials that better suit with students’ preferences and needs. This research allowed for the creation of more interesting and technology-relevant materials that are more acceptable to students.
The Effect Learning Method on Students’ Speaking Skill and Critical Thinking at STKIP Kusuma Negara Jakarta
Authors: Megawati Megawati
Published: November 2023

This research aims to identify the effect of learning method on students’ speaking skill, the effect learning method on critical thinking, and the effect learning method learning method on students’ speaking skill and critical thinking. Lecturer was chosen Students Team Achievement Division (STAD) and Jigsaw. Through learning method, researcher supposed to the students to get fluency in speaking English This research uses experimental research. Sample of this research was 30 students sixth semester Educational English Program at STKIP Kusumanegara. It was divided into two classes, that is, experiment class and control class. Collecting of the data was by using questionnaire and test speaking. Data was analysed using Kolmogorov Smirnow, to identify the data was normality. Then data was analysed by using Levenue to define that the data was homogeinity. It was obtained hypothesis, from the table Multivariate Test with F=74.642, sig 0.000 (<0.05). The results show that there is significant effect learning method towards Speaking Skills and Critical Thinking. It represents that F=145.499, p-value for category speaking skill (Y1) is 0.000 (<0.05), in which H0 is rejected or there is differences significant between students’ speaking skill in students’ group which was given by learning method with STAD with students’ speaking skill in students’ group which was given by learning method with Jigsaw. It represents that F=145.499, p-value for category critical thinking (Y2) is 0.000 (<0.05), in which H0 is rejected or there is differences significant between critical thinking in students’ group which was given by learning method with STAD with critical thinking in students’ group which was given by learning method with Jigsaw.
Defining Regions of Interest
Authors: Gendolf Dylan
Published: November 2023

Many machine vision applications, such as compression, pictorial database querying, and image understanding, often needto analyze in detail only a representative subset of the image, which may be arranged into sequences of loci called regions-of-interest,ROIs. We have investigated and developed a methodology that serves to automatically identify such a subset of aROIs (algorithmically detected ROIs) using different Image Processing Algorithms, IPAs, andppropriate clustering procedures. In human perception, an internal representation directs top-down, context-dependent sequences of eye movements to fixate on similar sequences of hROIs (human identified ROIs). In this paper, we introduce our methodology and we compare aROIs with hROIs as a criterion for evaluating and selecting bottom-up, context-free algorithms. An application is finally discussed.
When plasticity becomes pathological: Sequential decreases in basolateral amygdala response to threat cues predict failure to recover from PTSD
Authors: Roeckner Alyssa , Lin Esther R.-H , Hinrichs Rebecca , Harnett Nathaniel G , Lebois Lauren , van Rooij Sanne J H , Ely Timothy D , Jovanovic Tanja , Murty Vishnu P. , Bruce Steven E. , House Stacey L. , Beaudoin Francesca , An Xinming , Neylan Thomas C. , Clifford Gari D. , Linnstaedt Sarah D. , Germine Laura T. , Rauch Scott L. , Haran John P. , Storrow Alan B. , Lewandowski Christopher , Musey Paul I. , Hendry Phyllis L. , Sheikh Sophia , Jones Christopher W. , Punches Brittany E. , Swor Robert A. , Hudak Lauren A. , Pascual Jose L. , Seamon Mark S. , Datner Elizabeth M. , Pearson Claire , Peak David A. , Merchant Roland C. , Domeier Robert M. , Rathlev Niels K. , O'Neil Brian J. , Sergot Paulina , Sanchez Leon D. , Joormann Jutta , Sheridan John F. , Harte Steven E. , Koenen Karestan C. , Kessler Ronald C , McLean Samuel A. , Ressler Kerry J. , Stevens Jennifer
Published: November 2023

Background: The basolateral amygdala (BLA) plays an important role in fear memory and threat processing. While amygdala hyperreactivity early-post trauma has been a demonstrable neurobiological correlate of future posttraumautic stress disorder (PTSD), there is little evidence regarding how BLA reactivity may dynamically change over time following a traumatic event in relation to PTSD. BLA reactivity to threat may be a trait that can predict PTSD and persist over time. Alternatively, BLA responsivity to threat cues may dynamically change over time and be related to PTSD severity. Methods: As part of a larger, multisite study, “AURORA,” participants 18-75 years old were enrolled in an emergency department (ED) within 72 hours of a traumatic event (N=304, 199 female). At 2-weeks and 6-months post-trauma, PTSD symptoms and left and right BLA responses to threat (fearful>neutral faces) during fMRI as well as functional connectivity (FC) with the BLA were assessed. Results: Two weeks post-trauma right BLA reactivity positively predicted later PTSD severity. However, left BLA reactivity to threat at 6 months post-trauma was negatively associated with PTSD severity at that timepoint. In addition, a decrease in BLA reactivity from 2-weeks to 6-months predicted greater PTSD severity at 6 months, and a reduction in left BLA functional connectivity with the precuneus, a default-mode network hub, predicted increased PTSD severity over time. Conclusion: These findings support a dynamic shift in BLA function within the first 6 months post-trauma that predicts PTSD pathology, and stand in contrast to prior conceptualizations of amygdala hyperreactivity as a trait-like PTSD risk factor.
Exploring the Sociocultural Extensions of Changing Musical Taste: A Sociomusicological Study of Morocco’s Social Dynamics
Authors: Hmala Montassir , Nemar Houda
Published: November 2023

This article proposes a sociomusicological exploration of Moroccan music, specifically highlighting how musical taste can be a strong tool for analysing social change. Using a qualitative design, the study focuses on two main variables: identity and social values. Moreover, it examines two key sociomusiocological dimensions: music diffusion and consumption. Eighteen artists, including music composers, lyricists, and singers participated in the study through semi structured interviews. The content analysis of transcriptions revealed seven main themes: music’s function as entertainment, the hybrid / ambiguous musical taste, the hidden agenda, music broadcast reconsideration, (social) media and musical socialization, Moroccan values and the need for censorship, and the “danger” to the Moroccan musical identity. The findings demonstrate a noticeable shift in consumers’ general musical taste, attributed to significant changes in music diffusion and consumption patterns. Consequently, this shift has a profound impact on consumers’ identity and social values. Therefore, the study suggests that Moroccan society is currently experiencing significant social changes.
INTRODUCTION TO MANAGEMENT AND ORGANIZATION
Authors: febriyanti Permata
Published: November 2023

penjelasan manajemen
ChatGPT kan kort Afrikaanse gedigte skep en verdedig: Implikasies vir die praktyk
Authors: van Staden Christina J
Published: November 2023

ChatGPT kan sy kunsmatige intelligensie (KI) inspan om te dig, tog is min navorsing beskikbaar om die implikasies daarvan te begryp. Vir die doel van hierdie verkennende gevallestudie het ek tien kort digsoorte gekies om te bepaal in hoe mate ChatGPT (a) in Afrikaans kan dig en (b) sy digkuns kan regverdig (outeurspoëtiek). Daar is eerstens bevind dat ChatGPT al tien digsoorte (100%) kon skep, waarvan 70%, met of sonder wenke, aan al die vereistes voldoen het. Die res (30%) het gedeeltelik voldoen, maar ChatGPT kon nie wenke gebruik om probleme met hoeveelheid lettergrepe per reël en ritme op te los nie. Tweedens kon ChatGPT sy digkuns regverdig, maar dit het soms gejok, nuwe gedigte geskep wat ook nie voldoen het nie en probeer oortuig dat dit dan korrek is. Dit het belangrike implikasies vir die praktyk, aangesien verskeie faktore die opneem van hierdie KI-digter kan bevorder. Daarom bespreek ek die implikasies in meer besonderhede wat strategieë vir die gebruik, maar ook bekamping van misbruik, insluit. Nadat ek idees vir verdere navorsing voorgestel het, sluit ek met ’n slotgedagte.
Economic Glory of the Early Islamic Dynasties in Sicily, Italy
Authors: Hasan Asyari , Mathari Nadhil Novarel , Kamelia Milla , Darwis Rizal
Published: November 2023

This study further examines the economic growth in Sicily in Islamic civilization the factors that influence the increase in economic mutuality and the development of the economic system at that time. This study focuses on one of the regions in Europe that were successfully conquered by Muslims, namely Sicily. The results of the study found that the progress of growth in various sectors of Islamic civilization seen in Sicily was very significant, one of which was in the economic sector. The trade carried out by the Sicilian people also experienced a rapid increase. Such as the industrial economy which was built through mining and agriculture of the Sicilian population, making good use of existing natural resources. They grow a lot of secondary crops, olives, grapes, bananas, oranges, lemons, peaches, almonds, pomegranates, and grapes. The presence of a money exchange market is a complex matter of needs, providing a mechanism and medium of exchange. Sicily had a bimetallic economy: that is, one based on the circulation of silver and gold. Some taxes are applied to Muslim governments, namely tenth taxes, customs duties, zakat, and charity (sadaqah). The evidence obtained during the Islamic era in Sicily contained a fifth tax (khums), a tax on agricultural produce, a tax on wine, a voting tax (al-jawal), and a sea tax. In rural areas, there is a green revolution to boost the agricultural economy.
Grammar Contributions to Reading Comprehension in Children Learning English as an Additional Language and Monolingual Peers with Similar School Language Exposure
Authors: Witkowska Disa , Norbury Courtenay
Published: November 2023

BackgroundChildren with English as an Additional Language (EAL) often underachieve in reading comprehension relative to monolingual peers, likely reflecting differences in oral language proficiency in the additional language. However, previous studies have been limited by variable exposure to English, limited range of English proficiency in both groups, and few language measures beyond vocabulary. This study examined grammar as a predictor of later English reading comprehension in a unique population who all started formal education at age 4-5 and had varying levels of English language proficiency at school entry.MethodsTeacher-rated English language proficiency scores were taken for a population sample of 7267 children (age 4-5). A stratified sub-sample of 61 children with EAL and 529 monolinguals was tested in Year 1 (age 5-6) and Year 3 (age 7-8) on grammar, vocabulary, and word and non-word reading (WNW). Reading comprehension was assessed in Year 3.ResultsThere were no group differences in reading comprehension. Structural Equation Models demonstrated that for both groups, a unidimensional language construct combining grammar and vocabulary was highly stable and predicted reading comprehension after accounting for early and concurrent WNW. DiscussionChildren with similar exposure to academic English and education quality use WNW and oral language skills in comparable ways to achieve equivalent levels of reading comprehension in mid-primary school, regardless of whether English is their first or additional language. Children with poor English language proficiency at school entry should be prioritised for targeted oral language support including grammar to enhance literacy development.
Drawing behaviour influences ongoing thought patterns and subsequent memory
Authors: Zhou Silvia Shiwei , Rowchan Keanna , Mckeown Bronte , Smallwood Jonathan , Wammes Jeffrey D.
Published: November 2023

For millennia, humans have created drawings as a means of externalizing visual representations, and later, to aid communication and learning. Despite its cultural value, we understand little about the cognitive states elicited by drawing, and their downstream benefits. In two preregistered experiments, we explored these states; Undergraduate participants (Ns = 69, 60) encoded words by drawing or writing, periodically describing their thoughts using multi-dimensional experience sampling, a tool for characterizing the features of ongoing thought. Subsequent memory was tested via free recall. Contrasted with writing, drawing improved memory, and evoked thoughts that were more visual and elaborative. Recall was also dictated by the emergence of these thought patterns, with the former most important when drawing. Our findings establish that drawing elicits unique thought patterns that promote successful memory, providing an explanation for drawing’s influential role in our everyday lives.
AN ENVIRONMENTAL IMPACT ASSESSMENT OF AN ORC-BASED EXHAUST HEAT RECOVERY SYSTEM FOR APPLICATION IN VEHICLES
Authors: Thaddaeus Julius , Ezeaku Ikeokwu Innocent
Published: November 2023

The paper presents the study performed to assess the environmental consequences of a proposed organic Rankine cycle-based exhaust heat recovery system for application in vehicles. A life-cycle assessment of fifteen (15) midpoints and two (2) endpoint levels was performed using the SimaPro database to determine the potential environmental consequences of the main parts of the proposed system resulting from the various raw materials used in these parts. The performance results of the organic Rankine cycle-based exhaust heat recovery system show that it can generate up to 3.10 kW of net power output from the engine exhaust, which otherwise is released into the environment as waste heat, with a thermal efficiency of 6.36%. The life-cycle assessment results show that the presence of steel in these components is responsible for the majority of these environmental consequences. The evaporator showed the highest impact potential, with values ranging from 37% in marine eutrophication to 72% in ionizing radiation. From the two (2) endpoint impact assessments, it is clear that the pump has the maximum human health impact potential of 0.0138 DALY, with the condenser having the lowest contribution of 0.0005 DALY. The evaporator and condenser contribute 2297.25 PDF.m2.yr and 158.30 PDF.m2.yr ecosystem quality impact potentials, respectively, as the highest and lowest. Therefore, the organic Rankine cycle-based exhaust heat recovery system has relatively little impact potential on climate change threats, with a value of 1.37E-03 kgCO2.
A COMPREHENSIVE REVIEW STUDY ON HEAT TRANSFER IMPROVEMENT TECHNIQUES WITHIN TWISTED TUBES
Authors: Mohammed Baraa , Najeeb Shehab Saad
Published: November 2023

Heat transfer equipment has been used in many different domestic and industrial applications. There has been a concentrated effort to create a heat exchanger design that will reduce energy requirements while saving materials and other costs. Increasing the effective heat transfer surface area or creating turbulence are two common ways to improve heat transfer and hence lower thermal resistance. The thermal Performance Factor is the ratio of the difference in heat transfer rate to the difference in friction factor and serves as a metric to assess the efficiency of heat transfer enhancement technologies. Different types of twisted tubes are used in many heat transfer improvement devices. geometrical parameters of the twisted tube encompassing the aspect ratio, twist ratio, twist direction, twist length, etc. impact the heat transfer. For Instance, oval pipes with unequal twist pitches have a thermal performance factor (1.75) and equal twist pitches have a thermal performance factor (1.98). furthermore, the thermal performance factor of the twisted tube with oval dimples is equal to 1.19 compared with the twisted tube without dimples. The thermal performance factor of the twisted tube with oval dimples is equal to 1.38 compared with the straight tube, with another improvement to the twisted tube that improves the heat transfer properties by disrupting the thermal boundary layer and destabilizing it. This paper presents a comprehensive investigation of passive heat transfer devices (twisted tubes) and their relative merits in a myriad of commercial applications.
SECURITY CONSTRAINED OPTIMAL POWER FLOW BASED ON AN ARTIFICIAL INTELLIGENCE TECHNIQUE
Authors: Almansory Ayman , Al-Anbarri Kassim
Published: November 2023

In the past, artificial intelligence techniques were successfully adopted for obtaining optimal power flow in a power system. However, this optimality is limited to the economic aspects of the system's operating conditions. The other aspects of the operation, like security conditions, have been given limited attention. Hence, this paper presents an attempt to dispatch the power generation in electrical power systems optimally by taking into consideration both economic and secure operations, so that modern power systems can operate reliably and effectively. Security-constrained optimal power flow is addressed in this paper as a multi-objective optimization problem, consisting of four objective functions: minimizing power generation costs; minimizing voltage deviation; minimizing power losses; and alleviating the overloading on transmission lines. A detailed steady-state generator model is adopted in the present formulation. A metaheuristic optimization technique, namely, differential evolution, is used to obtain the security constraint optimal power dispatch. Additionally, the operating states of a power system have been addressed in this paper. The identification of the operating states is vital to the assessment of the security of the EPS. Improvements and appropriate security assessments have been made in some cases. The proposed algorithm is applied to a typical power system with different operating strategies. The obtained results are compared to those obtained from previous studies in the literature to demonstrate the suggested method's validity and effectiveness.
A LABORATORY MODEL FOR THE TWO-PHASE FLOW CONTAMINANT TRANSIENT IN MULTI-POROUS MEDIA
Authors: Akram Thijeel Zahraa , Salman Muhsun Sadiq
Published: November 2023

The environmental behavior of rock and oil pollutants in soil has long been a focus of environmental protection research. In this research, a laboratory model was established to study the oil pollutant transfer process in two stages. Two samples from porous media of sandy soil and agricultural soil (organic) were used with oil as a pollutant. The oil is pumped through a system consisting of two pipes with a length of 4 m and a diameter of 0.07 m. Each pipe is assigned to a specific type of soil. The results showed that the organic soil needs a long time for the pollutants to travel over greater distances, while the sandy soil showed its ability to absorb and drain the pollutants and get rid of them faster. However, it was also found that both soils contain a small percentage of the pollutant after the water washing process, which lasts for more than (5 hours). The remaining oil percentage is estimated at about (0.1 ml), which is a very small percentage, and it is possible to get rid of it by increasing the washing time. It was found that the physical properties of the soil such as permeability and porosity have a significant effect on slowing down the speed of the pollutant and its transmission through the porous medium.
Attitudes and Knowledge of Young People Towards Credit
Authors: Karanović Goran , Mujačević Elvis , Superina Emma
Published: November 2023

Istraživanje je provedeno u cilju ispitivanja znanja i stava mladih osoba prema kreditu. Ukupni uzorak ispitanih iznosi 77 mladih osoba, a is­pitivanje je provedeno uz pomoć strukturiranog online anketnog upitnika među studentskom populacijom. Rezultati ukazuju na važnost štednje, ali i nedostatak prakticiranja među ispitivanom populacijom. Postoji prostor za poboljšanje znanja vezanih uz kredite i o kreditnoj sposobnosti kao i kom­pleksnijim financijskim pojmovima. Uočen je nedostatak znanja o ulaganji­ma u vrijednosne papire i investicijske fondove. Ograničenja ovog istraži­vanja mogu se vidjeti u manjem uzorku, ali i uzorku studentske populacije. Preporuke za daljnje istraživanje su da se uzorak proširi na cjelokupnu po­pulaciju i ne samo na visoko obrazovane mlade osobe ekonomskog usmje­renja te da se koristi veći uzorak radi signifikantnije statističke potvrde.
Editorial
Authors: Abrams Benjamin , Gardner Peter
Published: November 2023

We are delighted to introduce the five excellent pieces in this article, which represent a broad cross section of contentious political cases and objects of study. We have in this issue studies from cases on three different continents, and two remarkable theoretical interventions of wide-ranging relevance.
OPTIMIZATION OF PREDICTION AND PREVENTION OF DEFECTS ON METAL BASED ON AI USING VGG16 ARCHITECTURE
Authors: Kosim Muhtar , Wibowo Ari , Setioputro Novandri Tri , Kasda  , Susanto Dian
Published: November 2023

Manufacturing is one of the most valuable industries in the world, it can be automated without limits but still stuck in traditional manual and slow processes. Industry 4.0 is racing to define a new era in digital manufacturing through the implementation of Machine Learning methods. In this era, Machine learning has been widely applied to various fields and will certainly be very good applied in the manufacturing world. One of them is used to predict and prevent defects in metal. The process of predicting and preventing defects in metal is one of the important efforts in improving and maintaining production quality. Accuracy in predicting and preventing defects in metal can be an innovation and competitiveness in technology, both in production methods, and improving product safety and its users. Human operators and inspectors without digital assistance generally can spend a lot of time researching visual data, especially in high-volume production environments. For this reason, there needs to be research in developing Machine Learning technology in an effort to prevent the occurrence of defects in metal. And one of the development of this technology by using Convolutional Neural Network (CNN) architecture Visual Geometry Group 16 layer (VGG16). As for the metal defect dataset with 10 classes with details for training data as many as 17221, and test dataset as many as 4311, From the use of methods and datasets available, has been done training model used and produce very good accuracy, that is equal to 89% and testing with accuracy equal to 76%. And also done Interpreter process against new input data, to know metal defect type, prediction accuracy and appropriate action to prevent and overcome metal defect type result of Interpreter process application.
ANALYSIS OF THE EFFECT OF CURRENT AND COOLING MEDIA IN TUNGSTEN INERT GAS (TIG) WELDING ON MECHANICAL STRENGTH AND MICRO STRUCTURE OF AISI 1045 STEEL FOR TRUSS FRAME MOTORCYCLE FRAME CONNECTIONS
Authors: Indrawan Mohamad , Santosa Aa
Published: November 2023

AbstractCurrently, metal joining techniques in the field of welding have developed rapidly. In constructions that use metal raw materials, most of the joints are made by welding. Apart from joining, the welding process can also be used for repairs, for example to fill holes in castings, make coatings on tools, thicken worn parts and other repairs. Welding is also widely used for building construction, bridges, piping and automotive. As we know, there are many types of welding used today. One of them is Gas Tungsten Arc Welding (GTAW) or commonly called Tungsten Inert Gas (TIG).AISI 1045 steel is referred to as carbon steel because it complies with international coding, namely the 10xx series based on the nomenclature issued by AISI and SAE (Society of Automotive Engineers). The first number 10 is the code that indicates plain carbon, then the code xxx after the number 10 indicates the carbon composition. So AISI 1045 steel means carbon steel or plain carbon steel which has a carbon composition of 0.45%. Steel of this specification is widely used as a component of gears, shafts and bearings. According to its function, it must be able to withstand wear and tear due to friction with the chain. Wear resistance is defined as resistance to abrasion or resistance to dimension reduction due to friction
Applying ChatGPT to Tackle the Side Effects of Personal Learning Environments in Higher Education: A Teacher and Teaching Perspective
Authors: Xu Xiaoshu , Wang Xibing , Zhang Yunfeng , Zhang Huanhuan , Wu Yunyang
Published: November 2023

This paper explores the way to apply ChatGPT to mitigate the side effects of Personal Learning Environments (PLEs) in higher education from the perspectives of teachers and teaching. An interview with six university professors and two Information and Communication Technology (ICT) experts was conducted. The thematic analysis reveals two main categories of side effects, including educational philosophy and teaching skills. The data analysis also contends that ChatGPT offers a valuable tool to aid educators in overcoming these challenges by improving the personalization of PLEs, aligning PLEs with formal education requirements, and designing innovative assessments and enhancing learning engagement in PLEs. This study provides insights beneficial to practitioners, researchers, and policymakers by elucidating the challenges and opportunities associated with integrating ChatGPT with PLEs in higher education.
Analisis Kekuatan Perkerasan Jalan Batas Ska Barat – Batas Kota Boyolali
Authors: Warsiti Warsiti , Risman Risman
Published: November 2023

Salah satu prasarana transportasi darat adalah jalan raya. Penataan hubungan jalan yang satu dengan yang lain dari suatu wilayah (jaringan jalan )mempunyai peranan dalam melancarkan angkutan barang maupun manusia dari suatu daerah ke daerah yang lain. Suatu wilayah yang mempunyai konstruksi jalan yang baik maka transportasi juga akan berjalan baik, dampaknya pengendara merasa nyaman, kecelakaan berkurang, lalu lintas berjalan lancar, perekonomian meningkat. Kondisi perkerasan jalan akan dipengaruhi oleh jumlah dan jenis kendaraan yang lewat, kualitas bahan material, perawatan, kualitas drainase dsb. Dalam studi ini akan dibahas tentang perkerasan exsisting, masih memenuhi syarat ketebalan perkerasan untuk menahan beban LHR (Lalu Lintas Harian Rata-rata) yang ada. Metode yang digunakan dengan membandingkan ITP exsisting dengan ITP berdasarkan data lalu lintas yang ada. Dari hasil analisis dapat disimpulkan bahwa pada IndekTebalPerkerasan( ITP exsisting ) Jl. Batas SKA Barat – Batas Kota Boyolali diperoleh 12,715 dan ITP berdasarkan data lalu lintas yang ada sebesar 12,45 Kesimpulan teketebalan perkerasan jalan raya Jl. Batas SKA Barat – Batas Kota Boyolali tahun 2015 masih memenuhi syarat ketebalan untuk menahan beban lalu lintas yang ada, sehingga belum perlu dilakukan Overlay atau penambahan tebal perkerasan.

Kata Kunci: LHR,CBR,FR,Struktur Perkerasan Jalan.
Penerapan Konsep Smart Building Pada Sistem Penerangan Dan Rooftop Tower A Apartemen Parahyangan Residence – Bandung
Authors: Nurdiansyah Agung , Isdar Dea Anggiri , Sutrisno Mei , Septiyanto Dwi
Published: November 2023

Meningkatnya kebutuhan akan kenyamanan dan kemudahan layanan yang didukung oleh teknologi otomatis pada bangunan, menyebabkan diperlukannya pengembangan pelayanan bangunan untuk memberikan kepuasan pada pengguna bangunan. Smart building merupakan sebuah konsep bangunan yang dapat memberikan teknologi otomatis tersebut untuk memenuhi kenyamanan layanan dan efisiensi bangunan. Penerapan konsep smart building yang direncanakan pada apartemen Tower A berupa pemanfaatan ruang kosong yang berada pada rooftop bangunan menjadi sebuah café dengan tema roof garden yang menggunakan sistem atap fleksibel. Besar biaya yang dibutuhkan dalam menerapkan atap fleksibel pada café tersebut dianggarkan sebesar Rp. 207.000.000. Selain itu, akan dilakukan kontrol sistem penerangan apartemen menggunakan sensor. Penambahan sensor pada sistem penerangan ini memperoleh efisiensi pada biaya operasional apartemen setiap tahunnya. Selain itu, cash flow aset selama 20 tahun, mulai dari tahun 2015 terkait replacement, maintenance, dan nilai sisa aset mengalami efisiensi sebesar 27% yaitu Rp. 1.632.185.713 dari kondisi eksisting.

Kata kunci:Smart building, roof garden, atap fleksibel, kenyamanan, kemudahan, efisiensi energi.
Analisis Kinerja Simpang Bersinyal Pada Jalan Kaligarang – Jalan Kelud Raya – Jalan Bendungan Raya
Authors: Warsiti Warsiti , Sukoyo Sukoyo , Pamungkas Galih , Herdiansyah Muhamad Ryan
Published: November 2023

Sejalan dengan  pesatnya perkembangan kota, tuntutan lalu lintas yang semakin padat, dan permintaan masyarakat terhadap kendaraan yang semakin besar memerlukan perhatian maupun penilaian kerja untuk kondisi persimpangan. Tidak seimbangnya jumlah lalu lintas dengan lebar efektif jalan, pendeknya waktu hijau akan menyebabkan tundaan serta antrian lalu lintas pada persimpangan. Perencanaan lebar pendekat, pengaturan fase dan waktu siklus optimum ditujukan untuk menaikkan kapasitas persimpangan dan sedapat mungkin menghindari terjadinya konflik lalu lintas.Sebagaimana hal tersebut diatas, dicoba untuk mengadakan studi pada persimpangan bersinyal. Studi ini menggunakan metode pendekatan dari MKJI (Manual Kapasitas Jalan Indonesia) dengan meninjau persimpangan “Jalan Kaligarang  –  Jalan  Kelud Raya – Jalan Bendungan Raya”. Setelah dilakukan analisis dari data yang diperoleh di lapangan, didapat nilai derajat kejenuhan untuk tiap pendekat adalah antara 0,907-0,927.Hal ini menunjukkan bahwa kinerja persimpangan tidak layak dioperasikan. Solusi yang dilakukan adalah dengancara perubahan waktu hijau sebanyak 14 detik pada lengan bagian barat (Jalan Kaligarang Barat), waktu siklus berubah dari 157 detik menjadi 171 detik dan penambahan lebar satu lajur (sepanjang 3,5 meter) pada pendekat T (Jalan Kaligarang Timur), penambahan satu lajur (sepanjang 3,5 meter) pada pendekat U (Jalan Bendungan Raya) dan penambahan 1,4 meter (dari 5,6 meter menjadi 7 meter) pada pendekat S (Jalan Kelud Raya). Setelah dilakukan perubahan tersebut, nilai derajat kejenuhan pada tiap pendekat menurun menjadi 0,494-0,794 dengan tingkat pelayanan simpang E.

Kata kunci: Kinerja Simpang, Derajat Kejenuhan, Panjang Antrian, Tundaan.
Pengaruh Durabilitas Terhadap Stabilisasi Sub Base Jalan Dengan Fly Ash Dari Pltu Asam Asam Kalimantan Selatan
Authors: Ariyanto Arief Subakti
Published: November 2023

Penggunanan  batu bara sebagai bahan bakar PLTU menyebabkan masalah serius terhadap lingkungan. Limbah yang dihasilkan dapan berupa fly ash, bottom ash dan gipsum yang selama ini di tumpuk pada gudang limbah.  Salah satu solusi penggunaan  Fly ash adalah sebagai material stabilisasi sub base jalan di sekitar lokasi. Suatu struktur perkerasan jalan setelah dilaksankan akan mengalami perubahan musim pengujan dan kemarau. Pada musimpenghujan lapis sub base akan mengalami  genangan air merupakan masalah yang harus diatasi. Penelitian ini dimaksudkan untuk mendapatkan manfaat penggunaan limbah fly ash untuk sub base jalan dan  pengaruh durabilitas akibat perubahan musim. Perubahan musim tersebut dapat dimodelkan dengan uji durabilitas dengan 12 siklus basah kering . Berdasarkan pengujian,sub base termasuk tanah   A-2 -7  sesuai USCS,dengan nilai  CBR  51% pada densitas maksimum melibihi yang dipersyaratkan yaitu sebagai sub base yaitu CBR 35 % dan nilai qu dari UCS test 22,702 kg/cm² pass the minimal requirement 22 kg/cm². Uji durabilitas menunjuk sample memberikan hasil prosentase kehilangan akibat siklus sebesar  6,43 %  kurang dari  10% for A-2-7 soil type.
Kata kunci :Fly ash, Sub base, Durability
Kualitas Bata Beton Dari Bahan Pasir Kalijali Dengan Campuran Semen Pada Berbagai Variasi Campuran Lebih Dari 28 Hari
Authors: Ukiman Ukiman , Utomo Setio , Supardjo Supardjo , Nurhadi Imam , Rahardjo Pentardi
Published: November 2023

Bahan bangunan yang berupa pasir dapat diperoleh dari penambangan seperti pasir gunung, pasir dari letusan gunung berapi, dan juga pasir dari aliran sungai yang mengendap di tempat tertentu. Salah satu bahan pasir tersebut dapat diperoleh dari aliran air kali Jaliyang berada di kabupaten Purworejo, tepatnya yang melintas di Kutoarjo dan bermuara di pantai Selatan (Samudra Indonesia). Bahan pasir tersebut telah lama digunakan oleh masyarakat sekitar aliran sungai, untuk membangun rumah, bahkan di area sekarang bahan pasir digunakan sebagai bahan pembuat bata beton (batako), sebagai pengganti batu bata merah untuk dinding rumah. Banyak kerajinan bata beton tetapi mutu (kualitas) tidak diketahui, dan melalui produk UD. Jaya Abadi Kutoarjo, dilakukan berbagai variasi campuran bata beton dengan bahan pasir kali jali, diperoleh nilai kuat tekan campuran (1pc:5ps) = 107,64 kg/cm², campuran (1pc:7ps) = 85,90kg/cm², campuran (1pc:9ps) = 71,51 kg/cm² dan campuran (1pc:11ps) = 63,82 kg/ cm². Dari hasil kuat tekan tersebut, maka diperoleh hubungan antara perbandingan campuran dengan kuat tekan dengan persamaan : y = - 0,10501 x +579,1 dengan R² = 0,955, dengan y = nilai kuat tekan, x = jenis campuran.
Kata kunci: Pasir Kali Jali, Semen, Kuat Teka