bluuebunny/crossref_metadata_2025 huggingface dataset:
Utilizing the Sobol’ Sensitivity Analysis Method to Address the Multi-Objective Operation Model of Reservoirs
Authors: Wang Haixia , Zhao Ying , Fu Wenyuan
Published: October 2023

The operation of reservoirs has significantly influenced the river ecological system. Upholding the ecological integrity of rivers during reservoir operations has been the focus of research over the years. When the Dahuofang reservoir project started, focus moved to ecological goals to address the Biliuhe reservoir’s environmental issues. The water strategy limits usage for various purposes and outlines the diversion route, complicating Biliuhe operations. In this study, to comprehend the effects of individual water level guidelines and their combined influence on these goals, the Sobol’ sensitivity analysis was introduced as an initial measure to tackle the optimization challenge. The results show that removing the insensitive water levels during specific periods of reservoir scheduling lines and beginning with sensitive water levels for local optimization to identify viable solutions, and then moving to wider optimization, significantly enhances the search efficiency, solution quality, and operational speed compared with an exhaustive search without any preceding steps. This sensitivity analysis technique is crucial for fine-tuning multi-objective reservoir operations.
Mitigating Scour at Bridge Abutments: An Experimental Investigation of Waste Material as an Eco-Friendly Solution
Authors: Murtaza Nadir , Khan Zaka Ullah , Khedher Khaled Mohamed , Amir Rana Adnan , Khan Diyar , Salem Mohamed Abdelaziz , Alsulamy Saleh
Published: October 2023

Scouring around bridge abutments is a crucial and complex process that sometimes may lead to the failure of the bridge abutment. Therefore, in the present research, scouring around bridge abutments under clear water conditions was examined without and with countermeasures for providing an economical solution. A total of forty-five experiments were performed under clear water conditions to find the maximum scour depth around the bridge abutment. Experiments were performed in two different phases. In the first phase, scour depth was investigated without any countermeasures. In the second phase, scour depth was investigated using marble and brick waste as a countermeasure. The results showed that the maximum scour depth around the bridge abutment (at a distance of 10 cm on the upstream side and 15 cm on the downstream side of the abutment) for the Froude’s number of 0.22 was 0.137 m without any countermeasure. The scouring depth increased up to 40% with an increase in the Froude’s number from 0.13 to 0.22. The maximum reduction of scour depth was observed to be 40% and 55% when brick and marble waste were used as a countermeasure, respectively, compared to without a countermeasure case. It was concluded that marble and brick waste not only reduced scour depth to a significant level but also provided an economical solution.
Biological Activated Carbon Filtration Controls Membrane Fouling and Reduces By-Products from Chemically Enhanced Backwashing during Ultrafiltration Treatment
Authors: Yang Yao , Zhang Shuai , Yang Guangfei , Li Haihui , Wang Jinjin , Li Wenyan
Published: October 2023

Water purification by ultrafiltration (UF) requires regular membrane cleaning via backwashing. In the case of chemically enhanced backwashing (CEB), it can result in the formation of unwanted by-product precursors due to reactions with organic matters present in the backwashing water and accumulating on the membrane. After subsequent disinfection, these precursors are prone to generate trihalomethanes (THMs) and haloacetic acids (HAAs), posing potential risks to the chemical safety of drinking water. However, limited information was available regarding the removal of these disinfection by-products. In this study, biological activated carbon (BAC) pretreatment followed by UF with chemically enhanced backwashing (CEB) (BAC-UF-CEB) was investigated to mitigate membrane fouling and reduce by-product formation. It was tested in parallel with UF with CEB (UF-CEB) and UF with sole physical backwashing. Compared to UF-CEB, BAC pretreatment prior to UF-CEB reduced transmembrane pressure (TMP) by 49.0%. BAC achieved high removals of dissolved organic carbon (59.99%) and UV254 absorbance (80.82%) in the BAC-UF-CEB effluent. Moreover, BAC-UF-CEB substantially decreased trihalomethane and haloacetic acid formation potentials by 83.28% compared to UF-CEB. BAC alleviated irreversible membrane fouling by 78.7%. By removing disinfection by-product precursors, BAC-UF-CEB markedly improved treated water quality and chemical safety. This study demonstrates BAC pretreatment effectively mitigates membrane fouling and controls disinfection by-products during UF water treatment.
Analiza
vegetabilno štavljene kože nakon obrade plazmom i hitozanom na postojanost boje
i antimikrobno djelovanje
Authors: Ercegović Ražić Sanja , Sutlović Ana , Ivanković Tomislav , Akalović Jadranka
Published: October 2023

Kako bi se utvrdila promjena obojenja odn. postojanost obojenja, uzorak vegetabilno štavljene kože podvrgnut je močenju u alkalnoj otopini znoja kako bi se izlučio višak tanina i drugih netaninskih tvari koje zbog svoje velike količine unutar stukture kože imaju snažan antimikrobni učinak, te u tom slučaju naknadna obrada nije potrebna. Remisijskim spektrofotometrom uzorci kože snimljeni su prije i nakon procesa močenja kako bi se utvrdila promjena obojenja objektivnim mjerenjem kolorističkih prametara boje i ukupne razlike u boji. Učinkovitost obrada ekološki prihvatljivom plazmom i biopolimerom hitozanom potvrđena je kod nekih uzoraka kože mikrobiološkim analizama spram dvije bakterijske vrste Staphylococcus aureus i Klebsiella pneumoniae, provedbom kvalitativnog testa difuzije.
Krojenje korzeta s košaricama – online učenje
Authors: Kocijančić Đurđica
Published: October 2023

U radu je prikazano krojenje korzeta s košaricama prilagođeno online učenju na predmetu ‘’Izrada kostima (workshop)’’. Postupak krojenja ženskog korzeta s košaricama opisan je pomoću sažetaka foto lekcija online vježbi. Cilj rada je objasniti na koji se način kroji korzet s košaricama putem online nastave studentima Kostimografije za vrijeme kada nije bila moguća kontaktna nastava. Prema detaljnim uputama za krojenje prikazan je svaki korak tehnološkog procesa krojenja korzeta s košaricama. Na taj se način usmjerava studente Kostimografije da prema uputama dobivenim putem online nastave iskroje korzet kod kuće.
Welas Asih Diri dan Gejala Gangguan Makan: Infleksibilitas Psikologis sebagai Mediator
Authors: A'anisah Rinda , Bintari Dini Rahma
Published: October 2023

Eating disorders are persistent problems related to eating behavior that can cause physical and psychosocial consequences. The increasing global prevalence of eating disorders underscores the need for an in-depth understanding of these disorders. It is known that the emergence of eating disorders is influenced by excessive evaluation one’s body and attempts to avoid unpleasant experiences. This indicates the role of psychological inflexibility in individuals with eating disorder symptoms. One of the protective factors against eating disorders is self-compassion, which is a gentle and loving attitude towards oneself, even when experiencing difficult experiences or emotions. Self-compassion helps individuals to become more flexible in dealing with their experiences and emotions, thereby avoiding maladaptive behavior. This study aims to examine the role of psychological inflexibility as a mediator in the relationship between self-compassion and eating disorder symptoms. This is a cross-sectional study involving 141 female participants aged 18-25 years (M=22,6, SD=2,02) who were obtained through convenience sampling techniques. Data retrieval is done using three measuring instruments, which are Self-compassion scale, acceptance and action questionnaire-II, and Eating Attitudes Test-13. The results showed that psychological inflexibility had a mediating effect in the relationship between self-compassion and eating disorder symptoms. Moreover, self-compassion cannot predict eating disorder symptoms directly without psychological inflexibility as an intermediary. It can be concluded that an individual's level of self-compassion lead to eating disorder symptoms through psychological inflexibility. The results also support the possible application of self-compassion interventions and acceptance and commitment therapy to treat eating disorder symptoms.
Solo Supermom: Psychological Well-Being pada Ibu Tunggal yang Kehilangan Pasangan Meninggal Dunia
Authors: Sukmana Hafiza Putri , Hanami Yuliana
Published: October 2023

A single mother who lost her spouse due to death bears the dual responsibility of being both a father and mother in the family, including managing the household, educating her children, and supporting herself. This situation places significant physical and mental pressure on her. The spouse’s role as a support system is no longer available to the single mom, and the grief experienced as an independent single mom leads to changes in her psychological well-being. This research aims to provide an overview of the psychological well-being of single mothers who have lost their spouses due to death. The study employs a descriptive qualitative approach with thematic analysis. Data collection involves semi-structured interviews with three participants using snowball sampling. The research findings indicate that single mothers undergo changes in self-acceptance and their current experiences after experiencing profound grief due to abandonment for approximately one year. Social support from the family influences a positive connection with their environment, while a lack of social support results in loneliness and reduced self-esteem. Job instability makes it difficult for single mothers to earn a living and be self-reliant. Social pressures related to the assessment of their status as widows and single mothers are felt by them. Single mothers have life goals related to the future of their children, and for those who are pessimistic, life is often entirely dedicated to their children, with limited opportunities for self-development. This research can be used by mental health promotion program designers and policymakers as additional empirical information on the current condition of single mothers' psychological well-being.
Kesatuan Jemaat Berdasarkan Ekaristi Analisa Sosial 1 Kor. 11:17-34:
Authors: Wibisono Hari Gunawan
Published: October 2023

Surat 1 Korintus memberi gambaran akan perhatian Paulus terhadap jemaat Korintus. Salah satu pokok persoalan yang ingin disinggung oleh Paulus adalah mengenai rasa solidaritas dalam praktik Perjamuan Ekaristi. Solidaritas adalah semangat dasar yang terwujud dalam Tradisi Ekaristi. Akan tetapi semangat tersebut belum terlihat dalam tubuh jemaat Korintus. Penyebabnya adalah adanya perbedaan budaya, asal usul, dan status sosial yang sudah mengakar dalam kehidupan bermasyarakat. Perjamuan Ekaristi hadir sebagai lambang akan kesatuan tubuh jemaat yang dipersatukan melalui baptisan yang sama. Oleh karena itu, Ekaristi menjadi tindakan nyata seseorang, yang melalui baptisan, telah memperbaharui dirinya dengan semangat solidaritas sebagai kesatuan Tubuh Kristus. Hanya saja, adanya penekanan tentang perbedaan status sosial sebagai aturan bersama dalam Perjamuan Ekaristi di Korintus menggambarkan cara hidup yang tidak tepat sebagai sebuah jemaat.
Misi Rekonsiliasi: Misi Gereja Katolik dalam Memulihkan Martabat Manusia Pasca Kekerasan di Indonesia
Authors: Utomo Kurniawan Madyo
Published: October 2023

Various forms of violence still occur in Indonesia. This violence brings suffering, both to the victims and the perpetrators. Essentially, violence destroys human dignity. The purpose of this research is to answer the question of what the Catholic Church should do to combat violence and restore human dignity affected by violent acts. The method applied in this research is a qualitative method using literature studies. By employing critical discourse analysis, the thoughts of theologians and Church documents regarding the mission of the Catholic Church in the reality of violence and injustice are carefully examined. This research finds that in the face of the reality of violence and injustice that destroys human dignity, the Catholic Church cannot remain silent; it is called to promote a mission of reconciliation. The Church must strive to show forgiveness to restore the dignity of both victims and perpetrators of violence. It also must engage in dialogue with followers of other religions to address issues of violence. In these ways, the Church presents God Himself, who forgives sinners and restores their dignity.
Ulos Batak Toba: Makna Religi dan Implikasinya pada Peradaban dan Estetika
Authors: Tinambunan Edison R.L.
Published: October 2023

This research is discussing Toba Batak ulos whose application has been widely spread, not only among Batak tribes but also all over Indonesia and worldwide; especially since Hutaraja Ulos Village, Samosir Region, North Sumatra was launched. With the use of qualitative methodology, a phenomenological approach is used to find out the religious meaning of Toba Batak ulos which is integrated in garnish, colors, and the weavers. The garnish of ulos refers to the intention of the application of ulos so that it meets the wish of the giver and receiver of the ulos in accordance with its bestowed religious meaning. The colors of ulos which intrinsically flow on each ulos yeast symbolize the presence of God. The weaver as the creator of the ulos is also envisioning ulos religiosity. The transformation of ulos religiosity is revealed in the social culture which indicates the civilization concerning Toba Batak traditions and customs. Moreover, ulos religiosity is also affirmed in fashion aesthetics which has been implemented from the very beginning of the creation of ulos up to these days: we have to wear, implement, appreciate, and honor the virtues in our lives. Obviously, Toba Batak ulos has high religious and social values to unite the divine–man, man-divine, and man-man dimensions.
Problematika Penerimaan Komuni bagi Orang Berkebutuhan Khusus (OBK) dan Pemahaman dari Para Prodiakon
Authors: Subali Yohanes , Seto Adi Purwono Vergilius , Agung Atanasius Yubileum
Published: October 2023

People with Special Needs (OBK) are individuals who have limitations or extraordinary abilities, both physically, mentally-intellectually, socially, or emotionally, which have a significant influence on their growth or development process compared to people in general. OBK is also often referred to as persons with disabilities. Even so, OBK are God's good creatures. With this awareness, OBK should have rights and obligations in their lives, especially in church life. With the limitations and specialties they have, OBK can take part in Church tasks thanks to the Sacrament of Baptism which is obtained according to their abilities. In addition, the rights as citizens of the Church also need to be considered. However, the people's perception of OBK is that there is still a tension of understanding. Pros and cons occur because of the assumption that OBK are still worthy of receiving Communion but there is also an assumption that OBK are unfit to receive sacramental services in and by the Church. This article is a research on the perceptions of the parishioners in several parishes in the Vicarage of the Special Region of Yogyakarta as a part of Archdiocese of Semarang for receiving Communion to parishioners who experience mental limitations. The research method used is quantitative methods. The purpose of this research is to make Catholics aware that OBK are God's good creations and they also have rights and obligations in the Church according to their abilities thanks to the Sacrament of Baptism they receive. The mission of OBK as Christian faithful is written in LG 10, book of canon law Canon 204, book of canon law Canon 208. Even so, there needs to be further assessment from psychologists, counselors, priests, and catechists to measure the extent to which CBOs are able to differentiate with their minds between the host or the Body of Christ as the main requirement for receiving Communion during the Eucharistic Celebration.
“Aku Kap Kam, Kam Kap Aku” Kesadaran Kontingensi Richard Rorty dan Relevansinya dalam Budaya Solidaritas “Aron”
Authors: Ginting Eikel
Published: October 2023

Living together as a whole of creation fosters the value of togetherness, which is manifested in thoughts and actions in relation to others. However, the challenge in realizing shared relations arises along with the development of the times, especially the increasing understanding of individualism and hedonism. This has an impact on ignoring human values, and does not provide opportunities for others to be respected and get the same life opportunities from a human standpoint. This is where awareness as an individual is needed as an awareness of contingency, to form pragmatism for the realization of opportunities in the human space. This is also relevant to the values of "aron", in the essence of life for the Karo people. Through this writing, the identity of limitations as a human becomes a contextual identity in strengthening the value of solidarity.
Unlocking the Potential: Analyzing the Impact of Online Games on High School History Education and Learning Outcomes
Authors: Chen Chu , Jenks Astin
Published: October 2023

This research investigates the influence of online games on learning outcomes in high school history subjects, examining their role in engaging students, enhancing critical thinking, and modernizing pedagogy. Employing a mixed-methods approach, the study integrates qualitative interviews with students and teachers and quantitative surveys to provide a comprehensive understanding of the research question. The research findings reveal that online games significantly improve student engagement, motivation, and learning outcomes in history education. Students report increased enthusiasm and participation, and test scores show a statistically significant improvement when online games are integrated into the curriculum. The qualitative data illuminate the positive impact of online games on students' critical thinking skills and the quality of teacher-student interaction. Educators can leverage these findings to modernize pedagogical practices, foster interdisciplinary learning, and create inclusive educational environments that cater to diverse learning styles and abilities. The research contributes to the broader understanding of technology's evolving role in education, emphasizing its potential to bridge past and present, engage digital natives, and prepare students for the complexities of the future. It underscores the transformative power of online games in education, providing a dynamic and interactive approach that resonates with today's learners.
Political Participation of the Millennial Generation in General Elections: The Influence of Education, Social Media, and Economic Factors
Authors: Utari Utari , Wulandari Yuni , Colby Colby , Crespi Crespi
Published: October 2023

The Millennial generation, comprising individuals born between the early 1980s and mid-1990s, represents a significant demographic group with the potential to shape the political landscape. This research investigates the multifaceted determinants of Millennial political participation in general elections, seeking to unravel the complexities that drive or hinder their engagement in the democratic process. Employing a mixed-methods approach encompassing surveys and interviews, this study examines key factors influencing Millennial political behavior. The research findings reveal several pivotal insights; Firstly, education emerges as a critical catalyst for Millennial political participation, emphasizing the importance of civic education programs in nurturing political awareness. Secondly, social media platforms, such as Twitter and Facebook, have assumed a transformative role, serving as potent tools for information dissemination, mobilization, and interactive political discourse. Thirdly, economic challenges, notably student loan debt and economic insecurity, persist as formidable barriers, necessitating targeted policies to alleviate these concerns and encourage political engagement. Fourthly, trust in political institutions emerges as a motivating factor, highlighting the significance of transparency and accountability in enhancing Millennial voter turnout. Lastly, non-electoral civic activities, including volunteering and community service, serve as precursors to broader political involvement, underscoring the value of encouraging civic engagement. The implications drawn from these findings reverberate through the realms of policy, political strategy, and societal empowerment. Recommendations include investments in civic education, leveraging social media for political outreach, addressing economic disparities, and fostering civic engagement. As Millennial political participation continues to evolve, this research underscores the importance of empirical analysis in informing effective strategies and policies. It serves as a clarion call for collective action, urging stakeholders across academia, politics, and civil society to empower Millennials as active and informed participants in the democratic process. This research contributes not only to academic knowledge but also to the practical endeavor of strengthening democratic foundations, ensuring that the voices of Millennials resonate within the corridors of governance, and shaping the trajectory of our collective political future
Impact of the National Health Insurance Program (JKN) on Access to Public Health Services: A Comprehensive Analysis
Authors: Soraya Syazarah , Syamanta Talita , Harahap Hilman Saidi Raja Bakkol , Coovadia Coovadia , Greg Mario
Published: October 2023

The National Health Insurance Program (Jaminan Kesehatan Nasional or JKN) has been a cornerstone of Indonesia's healthcare system, aiming to provide equitable access to public health services for its population. This research examines the impact of JKN on access to public health services in Indonesia, with a focus on enrollment duration, access barriers, satisfaction levels, and implications for policy and practice. A diverse sample of 800 JKN beneficiaries from various regions in Indonesia participated in this study. Demographic analysis revealed a broad representation of age, gender, education, and income levels among respondents. Data collection included structured surveys, interviews, and focus group discussions to capture comprehensive insights into the experiences of JKN beneficiaries. The research findings suggest that the duration of JKN enrollment significantly influences healthcare utilization. Beneficiaries enrolled for more than 2 years exhibited higher utilization rates, underscoring the importance of sustained enrollment. Access barriers, particularly long wait times and geographical distance to healthcare facilities, were identified as significant challenges. These barriers must be addressed to enhance healthcare accessibility. Satisfaction levels with healthcare services covered by JKN were generally high, but continuous quality improvement efforts are vital to sustain and elevate service quality. Policymakers can leverage these findings to promote long-term enrollment, address access barriers, and maintain equitable access to healthcare services. Healthcare providers can benefit from insights on improving appointment systems and ensuring quality care. The population at large can anticipate improved healthcare access as policy interventions seek to enhance the JKN program's effectiveness. In conclusion, this research contributes to the ongoing discourse on healthcare access in Indonesia, offering practical insights that can inform policy decisions and improve healthcare delivery. It underscores the importance of sustained JKN enrollment, the need to address access barriers, and the continuous pursuit of high-quality healthcare services for all Indonesians
Meme Mikrodalgası Hipertermi Aplikatörü İçin Geliştirilen Doku Taklidi Jel Karakterizasyonu
Authors: IŞIK Ömer , KORKMAZ Erdal
Published: October 2023

İnsan vücudu ile elektromanyetik dalgaların etkileşimi, dokuların ve hücrelerin dielektrik özellikleri gibi

faktörlerin yanı sıra diğer etkenler tarafından da şekillenir. Mikrodalga hipertermi ve mikrodalga

görüntüleme uygulamalarında, deney ortamı ölçüm düzeneklerinde simülasyon sonuçlarını doğrulamak

için doku taklit eden materyallere ihtiyaç vardır. Bu çalışmada hipertermi uygulamalarında kullanılmak

üzere kadın memelerine ait bazı doku taklit materyallerinin karakterizasyonu sunulmuştur. Karakterize

edilen doku taklit malzemelerinin maliyeti ucuz ve üretim aşamaları kolaydır. Deri, kas, meme yağı ve

kanserli dokular ISM bandı 434 MHz'de önerilmektedir.
Al6061 Matrisli Hibrit Kompozitlerin Sertlik ve Çekme Dayanımına SiC Al2O3 ve Yumurta Kabuğu Tozu Takviyesinin Etkilerinin İncelenmesi
Authors: TOK Akif , ATEŞ Serkan
Published: October 2023

Bu çalışmanın amacı kolayca bulunabilen atıklardan elde edilen takviye kullanarak çevre dostu ve uygun

maliyetli alüminyum matrisli kompozit geliştirmektir. Tavuk yumurtası kabuğu, bertaraf edilmediği

takdirde ciddi çevresel tehlikeye neden olan endüstriyel bir atık olduğundan bu çalışmada takviye

malzemesi olarak kullanılabilirliğinin yanı sıra SiC ve Al2O3 gibi geleneksel takviye malzemeleri ile uyumu

da araştırılmıştır. Bu kapsamda hibrit kompozit üretimi için iki kademeli karıştırmalı döküm yöntemi

kullanılarak, Al6061 matrisli, yumurta kabuğu tozu, SiC ve Al2O3 takviyeli hibrit kompozitler üretilmiştir.

Kompozitler ağırlıkça %1, 3, 5, ikili hibrit kompozitler ağırlıkça %4, 6, 8 ve üçlü hibrit kompozitler ise

ağırlıkça %7, 9, 11 takviye-hacim oranlarında 22-59µm toz boyutuna sahip takviyeler kullanılarak

üretilmiştir. Üretilen kompozitlerin mikro yapıları taramalı elektron mikroskobu ile görüntülenerek

takviyelerin varlığı tespit edilmiştir. Kompozitlerin sertlikleri Brinell sertlik ölçüm yöntemi kullanılarak,

maksimum çekme gerilmeleri ve birim uzama miktarları ise çekme testi ile belirlenmiştir. Kompozit

içerisinde ağırlıkça yumurta kabuğu tozunun artması ile sertlik ve maksimum çekme gerilmesi artarken,

birim uzama miktarının azaldığı belirlenmiştir.
Investigation of The Effect of Radial Width and Axial Depth Parameters on Surface Quality in Milling of White Marbles
Authors: ÖZKAN Erkan , ÖZ Oğuzhan , TUĞRAL Nazmiye
Published: October 2023

In this study, surface quality and tangential cutting force and radial width (ae) and axial deep (ap)

parameters were investigated in the processing of white marble, which is a natural building material.

Five different white marbles were used in the experiments and the taguchi method was applied as the

test method. Depending on the number and level of parameters, the L9 orthogonal array was chosen.

Cutting forces and surface roughness data were collected for each marble. The optimal level and

contribution percentage of each parameter was determined by applying the analysis of variance with

the signal-to-noise (S/N) ratio. The Fr and Ra factors for all marbles were found to be ae:1 mm and ap:1

mm. Depending on the significance level, axial depth of cut (ap) was the primary effective parameter

(65-86% for Fr; 42-78% for Ra), while radial depth of cut was the secondary effective parameter (3-24%

for Fr; 16-35% for Ra). It can be said that the feed rate parameter was not an effective parameter in

general.As a result of regression analysis, a significant relationship of 83% was observed between Ra

surface roughness value and mineral grain size. Grain size has been the mineralogical-petrographic

feature affecting the surface quality of marbles.
Silindirik Depolama Tanklarında Oluşan Çalkantı Etkisinin Akışkan Türüne Bağlı Değişimi
Authors: DAGLİ Begum , YİĞİT Muhammet Ensar , BOSTANCI Yalçın
Published: October 2023

Bu çalışma deprem kuvvetinin sıvı depoları gibi özel yapılardaki yıkıcı etkisini, akışkan- yapı etkileşimi

problemi açısından ortaya koymak amacı ile gerçekleştirilmiştir. Yapının dinamik davranışı tank öz

ağırlığı, akışkan ağırlığı, çalkantı kuvveti ve deprem kuvveti dikkate alınarak araştırılmıştır. Düzce

depremine ilişkin veriler kullanılarak doğrusal olmayan analizler yapılmıştır. ABAQUS sonlu elemanlar

programı ile yapılan analizlerde çelik tank Lagrangian, seçilen üç farklı akışkan Eulerian yaklaşımı ile

modellenmiştir. Hesaplar Coupled Eulerian–Lagrangian metod (CEL) üzerinden sürdürülmüştür.

Analizlerde açık zaman entegrasyonu kullanılmıştır. Üstü kubbe şeklinde kapatılan silindirik çelik tankın

%70 oranında su, yağ ve petrol ile dolu olduğu kabul edilmiştir. Tank üzerinde belirlenen referans

noktalarında meydana gelen en büyük yer değiştirme ve Von Mises gerilme değerleri karşılaştırmalı

olarak sunulmuştur. Serbest yüzey profilleri her akışkan için ayrı ayrı elde edilmiştir. Depolanan akışkan

türüne bağlı olarak çalkantı kaynaklı hidrodinamik kuvvetlerin yapı üzerindeki etkisinin değiştiği

gözlenmiştir.
Elderly Fall Detection Using Autoencoder Based Dimensionality Reduction and Smartwatch Based Wearable Motion Detectors
Authors: SAĞBAŞ Ensar Arif , BALLI Serkan
Published: October 2023

Falling is a serious health risk that can even result in death, especially for the elderly. For this reason, it

is crucial to prevent falls and, in cases where prevention is not possible, to detect and intervene as soon

as possible. Smartwatches are an ideal tool for fall detection due to their constant presence, rich sensor

resources, and communication capabilities. The aim of this study is to detect falls in elderly people with

high accuracy using motion sensor data obtained from smartwatches. To achieve this, a dataset was

created consisting of falls and daily activities. Then, the feature vector was extracted which has

provided successful results in signal processing studies. Afterward, the dimensionality of the dataset

was reduced using an autoencoder-based approach in order to decrease the workload on smartwatches

and ensure more accurate and faster classification. The dataset was classified using machine learning

methods including naive Bayes, logistic regression, and C4.5 decision tree, and successful results were

obtained. Their performances were then compared. It was observed that reducing the dimensionality

had positive effects on both the classification accuracy and the computation time.
Çimento Hamurlarının Mekanik Özelliklerine CO2 Kürünün Etkisi
Authors: YÜKSEL Merve , ÖZCAN Ahmet , TOPRAK Mehmet Uğur
Published: October 2023

Erken yaşta CO2 kürü, çimento hidratasyon ürünlerinin oluşumunu etkileyerek çimento bağlayıcılı malzemelerin mekanik özeliklerini değiştirebilmektedir. Farklı su/çimento (s/ç) oranlarında (%28 ve %32) çimento hamurları hazırlandıktan sonra 4 farklı şekilde CO2 kürü uygulanmıştır. Çimento hamurlarının karıştırma işlemi bittikten 15 dk sonra numunelere 15, 30 ve 60 dk CO2 kürü (1, 3, 5, 8 ve 10 bar) uygulanmıştır. Aynı zamanda numunelerin bir kısmına da priz başladıktan sonra (117 dk) 30 dk CO2 kürü (1, 3, 5, 8, 10 ve 50 bar) uygulanmıştır. Çimento hamurlarının 7 günlük basınç dayanımları incelenmiştir. En yüksek basınç dayanımı (112.73 MPa) 15 dk ön bekleme yapılmış ve 60 dk süresince 3 bar CO2 kürü uygulanmış KK %28 kodlu numunede elde edilmiştir. Kontrol numunelerinde s/ç oranı arttığında basınç dayanımındaki azalma %27 iken, 15 dk ön beklemeden sonra 60 dk CO2 kürü uygulanan numunelerdeki bu azalma oranı %53’dür. Dayanım artışı açısından genel olarak çimento hamuruna uygulanan en uygun kür işlemi 15 dk ön bekleme sonunda 60 dk 3 bar CO2 kürüdür.Erken yaşta CO2 kürü, çimento hidratasyon ürünlerinin oluşumunu etkileyerek çimento bağlayıcılı

malzemelerin mekanik özeliklerini değiştirebilmektedir. Farklı su/çimento (s/ç) oranlarında (%28 ve

%32) çimento hamurları hazırlandıktan sonra 4 farklı şekilde CO2 kürü uygulanmıştır. Çimento

hamurlarının karıştırma işlemi bittikten 15 dk sonra numunelere 15, 30 ve 60 dk CO2 kürü (1, 3, 5, 8 ve

10 bar) uygulanmıştır. Aynı zamanda numunelerin bir kısmına da priz başladıktan sonra (117 dk) 30 dk

CO2 kürü (1, 3, 5, 8, 10 ve 50 bar) uygulanmıştır. Çimento hamurlarının 7 günlük basınç dayanımları

incelenmiştir. En yüksek basınç dayanımı (112.73 MPa) 15 dk ön bekleme yapılmış ve 60 dk süresince 3

bar CO2 kürü uygulanmış KK %28 kodlu numunede elde edilmiştir. Kontrol numunelerinde s/ç oranı

arttığında basınç dayanımındaki azalma %27 iken, 15 dk ön beklemeden sonra 60 dk CO2 kürü uygulanan

numunelerdeki bu azalma oranı %53’dür. Dayanım artışı açısından genel olarak çimento hamuruna

uygulanan en uygun kür işlemi 15 dk ön bekleme sonunda 60 dk 3 bar CO2 kürüdür.
Algunas consideraciones acerca de la torsión del cordón en el testículo ectópico
Authors:   , Leunda René Juan
Published: October 2023

Considerando que la torsión del cordón determina los accidentes circulatorios, que el hecho se produce en presencia de anomalías congénitas o adquiridas como generalmente se acepta (sea en testículo en posición normal o ectópica), que la torsión aunque es brusca en la mayoría de los casos, puede no serlo, es que proponemos la siguiente definición: la torsión del cordón espermático es un proceso cuya etiología generalmente se explica por anomalías anatómicas y consiste en el arrollamiento funicular que determina la estrangulación de los vasos sanguíneos que se dirigen al testículo y al epidídimo, condicionando el trastorno de la; circulación venosa y el aflujo arterial que continúa la congestión hemorrágica e infiltración intersticial difusa de los órganos afectados. En esta definición algo extensa, se tiene en cuenta de una manera somera el mecanismo, etiopatogénico, el sitio inicial de la afección y las alteraciones anatómicas que determina.
Capacidad clorhídrica
Authors:   , Gerbnicoff Simón
Published: October 2023

Me referiré a la forma en que he realizado el análisis gástrico fraccionado teniendo en cuenta la relación entre la cantidad de jugo gástrico extraído y el HCL libre, el cual constituye un nuevo elemento interpretativo que ha sido designado con el nombre de capacidad clorhídrica. Este valor se obtiene multiplicando la cantidad de centímetros cúbicos de jugo gástrico filtrado y extraído cada quince minutos, por la concentración clorhídrica libre de esa muestra dividiendo el producto por diez para poder ser incluido en el gráfico. A continuación expongo los distintos casos clínicos que he examinado con sus correspondientes curvas de capacidad clorhídrica
Використання системи «Бібліотека наукометрії» для проведення наукометричних досліджень
Authors: Ланде Д. В. , Крючин А. А. , Добровська С. В. , Балагура І. В.
Published: October 2023

На прикладі аналізу публікаційної активності актуального науково-технічного напрямку «Захист інформації» представлено можливості системи «Бібліотека наукометрії» для пошуку інформації в реферативній базі даних «Україніка наукова» (реферативний журнал «Джерело»). Визначено базові технології, які використано під час створення системи «Бібліотека наукометрії». Особливу увагу приділено аналізу методів використання системи «Бібліотека наукометрії».
A trajetória dos irmãos Goncourt no campo literário francês
Authors: Gama Zadig
Published: October 2023

Este artigo reconstitui a trajetória irmãos Edmond (1822-1896) e Jules (1830-1870) de Goncourt, compreendendo os anos de preparação de suas primeiras obras, sua efetiva entrada campo literário francês e a produção de Edmond sem a colaboração de seu irmão, morto em 1870. Tomando como base a Sociologia da literatura e a História do livro e da edição, observam-se, em um primeiro momento, as inclinações artísticas e, em seguida, as sucessivas apostas dos irmãos Goncourt em diferentes temas e gêneros literários. Isso permite, posteriormente, descrever e analisar a escolha de seus editores para a publicação de suas obras. A partir da apresentação das condições de produção da obra dos irmãos Goncourt no campo literário francês, discute-se o estabelecimento de seus nomes em uma posição de relativo reconhecimento e prestígio.
Effects of Supply, Demand, and Labor Market Shocks in the Mexican Manufacturing Sector
Authors:   , Colunga L. Fernando , Torre Cepeda Leonardo
Published: October 2023

This paper analyzes the contribution of supply and demand shocks, and labor market shocks, to the evolution of regional production and inflation of manufactured goods in Mexico within the context of the pandemic. Under the identification of a Bayesian Structural Vector Autoregressive (SBVAR) model with sign restrictions, it is found that since 2021, external demand shocks increased their contribution relative to local shocks in explaining the growth of manufactured goods production in all regions except the South; meanwhile, external supply shocks increased their positive contribution in explaining inflationary pressures across all regions. On the other hand, from 2022 onwards, labor supply shocks have contributed to the behavior of the production and inflation of manufactured goods in the Northern and North-Central regions.
COVID-19, Crises and Women's Control of Resources: Evidence from Mexico
Authors:   , Casco José L.
Published: October 2023

This paper investigates the effect of crises on the intra-household allocation of resources. To study this issue, I use survey data from Mexico and estimate a structural model of household behavior to recover how much resources are allocated to each household member. Then, I construct a proxy for women's bargaining power using the women's control of resources and document how it evolves over periods of economic stability and contraction. The results suggest that during the COVID-19 crisis period, women's control of resources decreased relative to the non-recession period (4-5 percentage points) and the financial crisis (6-8 percentage points). This effect was more pronounced for households with children than those without children. Finally, I look into how this resource reallocation affects household consumption and individual poverty. The results of this paper highlight the heterogeneous behavior of intra-household inequality and women's bargaining power over the business cycle. It also suggests that the hypothesis that the financial crisis was a "man-cession" and the COVID-19 crisis was a "she-cession" holds in terms of intra-household resource allocation.
Effects of Trade and Exchange Rate Policies on Imports and Trade Tax Revenue in Nigeria
Authors: Adewnyi Adeolu O.
Published: October 2023

This paper examines the impact of trade and exchange rate policies on import and trade tax revenue in Nigeria. This study, which covers 1970 – 2007, adopted the ordinary least squares (OLS) method, and some diagnostic tests were performed. Time series properties of the variables were tested and error correction models were estimated. Results show that the average tariff in Nigeria has a negative impact (hinders) on import, with an impact lag. Specifically, it produced a significant negative impact on consumer goods and raw material imports, but a significant positive effect on capital goods import. The case of capital goods import is different, perhaps because of the various waivers and low tariff on this type of import. Real exchange rate is found to have an unstable or unpredictable relationship with import of all categories. Real GDP produced a significant impact on all the four categories of imports. The coefficient of income elasticity of demand for import varies from 1.6 in the case of capital goods import to 1.2 in respect of consumer goods import. In the same vein, results show that tariff has a positive and significant relationship with trade tax revenue, with an impact lag. Real exchange rate is found to have an unstable or unpredictable relationship with trade tax revenue. Real GDP produced a positive and significant impact on trade tax revenue, with an impact lag. The foregoing therefore suggests that the link between import and trade tax revenue is trade and exchange rate policies. Some policy recommendations are made to inform the finetuning of existing policies.
Youth Restiveness and Entrepreneurial Orientations in Ijora-Badia, Lagos, Nigeria: A Development Approach
Authors: Akanle Olayinka , Oladosu Olukunle Babafemi
Published: October 2023

Conflict and restiveness have become so endemic in Nigeria to the extent that Nigeria is commonly known at home and internationally as a crisis ridden nation. To demonstrate this, the federal government o(Nigeria has earmarked at least one-third of its national budget for the year 20l2for security and conflict management. lf the real dynamics and trajectories of the Nigerian conflict are not understood, the budget provision and other resources will be useless ultimately. Unfortunately, 11I0stof the drivers and armies of the conflicts are youths. It is against this background that this article explored the subject of youth restiveness and the entrepreneurial options in the country. The article was empirically based 011data collected through questionnaires, IDIs and FGDs. Important findings were made and useful conclusions reached in this article.
Effects of Peer Education on Knowledge of AIDS, Attitudes and Sexual Behaviour of Undergraduates in South-west, Nigeria
Authors: Falaye Folajogun V.
Published: October 2023

This study assessed the effects of Peer Education in facilitating improved knowledge of reproductive health and AIDS, attitudes and behaviour change among university students in South-west, Nigeria with the aim of promoting HIV prevention. The study involved 230 Undergraduates from two old generation federal universities (149 males & 81 females), aged between 17 and 31years old. A pretest, posttest control group, quasi-experimental design was used in the study. One instrument consisting of four sections, with reliability indices ranging from .63 to .80, was used for data collection. Findings revealed significant main effects of peer education on knowledge and attitudes of the two groups of participants, however; the peer-led intervention group gained more than the control group in knowledge of reproductive health, AIDS related issues and attitudinal change. There was no significant effect of peer education on the behaviours and practices related to HIV prevention.
Gender, Political Participation and the Feminization of Poverty in Nigeria
Authors: Olutayo M. A ‘Seun
Published: October 2023

This paper examines the implications of poverty for female participation in politics. Specifically, it focuses on the role of culture and political economy which persistently engenders the feminization of poverty with adverse implication for female political participation. It does this by using the qualitative method of data collection to elucidate gender imbalance as represented by male dominance and female under representation in politics in Oyo state. In emphasizing the mutability of the existing constraints to the political participation of women in Oyo state, Nigeria, the paper underscores the extent to which economic powerlessness or poverty and other social factors will continue 10 inhibit women’s participation and representation. As such, except there is a fundamental transformation of the social structure. (he realization of the female gender in politics will only be of theoretical relevance as its practicability is almost impossible!
Attitude Towards Unethical Work Behaviour among Police Personnel: The Role of Emotions
Authors: Ojedokun Oluyinka A.
Published: October 2023

While explaining the reasons for unethical behaviour among police personnel, with emphasis on training and education, the role of emotions is often neglected. This study clarifies the role of emotions in reducing unethical work behaviour by examining the influence of emotional intelligence and self-regulation on attitude towards unethical work behaviour among a sample of the Nigerian police personnel. The study adopts an ex-post facto research design to collect data from two hundred and t:.’tittv-five police personnel at Ogun State Police Headquarters, Eleweran, Abeokuta. A questionnaire consisting of four sections, for measuring emotional intelligence, self-regulation, attitude towards unethical work behaviour and demographic variables, was the instrument of data collection. Two hypotheses were tested using the stepwise multiple regression analysis and 2×2 analysis of variance (ANOVA). The results revealed that emotional intelligence, self-regulation, age, educational qualification and gender were significant predictors of attitude towards unethical work behaviour (R2: 0.66; I; (5, 219):5.66; p < .001) accounting for sixty-six percent of the variance in attitude towards unethical work behaviour. The independent predictions also showed that emotional intelligence (B:-.44; t: -5.9; p< 0.001), self-regulation (B:-.27′ t: -2.3; p<0.001), age (B=’.16′ r:-2.2; p<0.01), educational qualification B:-.15; t:-2.2; p<0.01) and gender (B: t:-2.1; p<0.01) contributed significantly to variance in attitude towards unethical work behaviour. Lastly, there was a significant influence of emotional intelligence and self-regulation on attitude towards unethical work behaviour (F [1, 221]:18.40; p<.001). These findings have implications for personality assessment of police recruits in order to reduce unethical work behaviour.
To What Extent were the Public Sector Workers underpaid in Nigeria before the Wage increase in 1998?
Authors: Aminu Alarudeen
Published: October 2023

This study investigates the extent to which public sector workers in Nigeria were underpaid before the wage increase September 1998. Before the wage increase, public sector workers’ take-home pay had suffered a stagnation, which dates back to 1993 fiscal year. The core of the empirical analysis it the determination of differential in pay for public and private sector workers of the same educational qualification and age. Mincerian human capital model is estimated for only urban male employees (as they constitute a homogeneous group) in the public and private sectors. The results obtained show that before wage review of’ 1998, public sector workers suffered a pay disadvantage of 6.78 percent. This paltry pay disadvantage/differential suggests (in the face of the stagnation that characterised public sector pay on the one hand and in the absence of any wage reduction in the private sector on the other) that wage growth in the private sector must have been slow and this may be attributed to a certain extent to the down-turn in the nation’s economic activity and the fact that the state of’ public sector pay in Nigeria determines the direction of private sector pay or any other pay for that matter in the various segments of the nation’s labour market.
Curtailing Conflicts in the Resource-Endowed Niger Delta Communities of Nigeria
Authors: Akinwale Akeem Ayofe
Published: October 2023

Violent conflicts rema.in unabated in the Niger Delta communities of Nigeria despite efforts of successive governments and international organizations to broker peace in the area. Using an interpretive approach, with insights from historical and contemporary theoretical perspo6yiyss, various studies were reviewed and 24 Key Informant Interview’s were conducted with stakeholders in four oil-producing Niger Delta communities selected from Bayelsa, Delta and Rivers States of Nigeria. The respondents were drawn from different groups, comprising community/religious leaders, youth activists, government officials, managers of multi4ational oil companies and members of the National Union of petroleum Engineering and Natural Gas Workers (NUPENG). The findings reveal that there are differing opinions about conflict resolution mechanisms in the Niger Delta among the different groups. While government officials and multinational oil companies were optimistic about mechanisms for conflict control, youth activists and labour leaders were pessimistic about the possibility of lasting peace in the study area. The community and religious leaders identified structural barriers such as intervention efforts facilitate that failed to peace, using spate of hostage taking by militant youth and. inadequate infrastructure. However, what appear as intractable conflicts are informed by divergent interests of state elites and, local leaders over the modalities for managing the prevailing circumstances in the region. The study concludes with strong recommendations.