bluuebunny/crossref_metadata_2025 huggingface dataset:
New Hybrid Conjugate Gradient Method as a Convex Combination of PRP and RMIL+ Methods
Authors:   Department of Mathematics, Faculty of Sciences, Badji Mokhtar University; Department of Mathematics and Informatics, Faculty of Science and Technology, Mohamed Cherif Messaadia University, Souk Ahras, Algeria. Email: g.hadji@univ-soukahras.dz., Hadji Ghania , Laskri Yamina ,   Department of Mathematics, ESTI, Faculty of Sciences, Badji Mokhtar University, Annaba, Algeria. Email: yamina.laskri@univ-annaba.org., Bechouat Tahar ,   Department of Mathematics and Informatics, Faculty of Science and Technology,
Mohamed Cherif Messaadia University, Souk Ahras, Algeria. Email: t.bachaouette@univ-soukahras.dz., Benzine Rachid ,   Department of Mathematics, Laboratory LANOS, Faculty of Sciences, Badji Mokhtar University, Annaba, Algeria. Email: rabenzine@yahoo.fr.
Published: June 2024

The Conjugate Gradient (CG) method is a powerful iterative approach for solving large-scale minimization problems, characterized by its simplicity, low computation cost and good convergence. In this paper, a new hybrid conjugate gradient HLB method (HLB: Hadji-Laskri-Bechouat) is proposed and analysed for unconstrained optimization. By comparing numerically CGHLB with PRP and RMIL+ and by using the Dolan and More CPU performance, we deduce that CGHLB is more efficient.
Keywords: Unconstrained optimization, hybrid conjugate gradient method, line search, descent property, global convergence.
(im)possiblidade da prisão preventiva de ofício após o pacote anticrime
Authors: Munhoz Dhiego Luciãn , Toporoski Elizeu Luiz
Published: June 2024

A violência doméstica problema que surgiu junto com o desenvolvimento da vida em sociedade, problema de ordem mundial, tendo como vítima a mulher em sua fragilidade, essa violência que passa do físico, e pode ser considerada qualquer conduta que cause o dano a vítima, baseado no gênero. O presente artigo analisa os aspectos da prisão preventiva de ofício do acusado baseando-se na Lei Maria da Penha após o pacote anticrime. Pretendeu descrever a prisão preventiva e suas características; estudar a Lei n. 13.964/2019 e suas alterações sobre a prisão preventiva; bem como trazer considerações sobre a (im) possibilidade da prisão preventiva de ofício segundo a nova legislação. Vale destacar que o pacote anticrime visou a imposição de maior penalidade para os infratores e efetividade no processo penal acusatório com a impossibilidade de prisão preventiva de ofício pelo magistrado.
conflito entre normas internacionais e internas no âmbito das indenizações nas relações de consumo decorrentes de transporte aéreo internacional
Authors: Wronski Bruno Prade , Gonçalves Ane Elise Brandalise
Published: June 2024

O presente trabalho estuda o conflito existente entre normas indenizatórias aplicáveis em casos de extravio de bagagens de consumidores em viagens aéreas internacionais: as Convenções de Varsóvia e de Montreal ou o Código do Consumidor. Verificou-se que tais normas possuem tratamentos distintos, já que os tratados internacionais limitam a responsabilidade do transportador aéreo, ao passo que o CDC acolhe o princípio da reparabilidade integral, além de outras distinções de ordem prática, como prazo para ação, etc. Diante disso, esta pesquisa foi motivada pela curiosidade encontrar a resposta para a seguinte pergunta central: qual é a atual jurisprudência pacificada sobre as normas à serem utilizadas nos casos de indenizações decorrentes do transporte aéreo internacional, com contratos de consumo firmados no Brasil? O propósito e objetivo deste Trabalho de Conclusão de Curso é demonstrar o conflito normativo pela atual jurisprudência brasileira. A metodologia é de pesquisa qualitativa, de procedimento bibliográfico, cujas informações foram obtidas a partir da literatura jurídica. Conclui-se que o Supremo Tribunal Federal (STF) entendeu que às situações envolvendo extravio de bagagens em viagens aéreas internacionais seriam aplicáveis os Tratados Internacionais (Convenções de Varsóvia e de Montreal), que culminam por limitar os valores indenizatórios em prol do transportador aéreo. De outro lado, em relação aos danos morais, viu-se que os Tratados Internacionais não delimitam sobre o assunto, cabendo aplicação do CDC para fins de indenização extrapatrimonial, conforme entendimento recente do Superior Tribunal de Justiça (STJ).
Aprender a aprender en las universidades españolas, ¿una competencia transversal?
Authors: Moctezuma-Ramírez Evelyn E. , García-García Fran J. , Pérez-Pérez Cruz , Escalante Ferrer Ana Esther , Yurén Teresa
Published: June 2024

El objetivo de este estudio fue conocer cómo se programa la competencia “Aprender a aprender” (AaA) en el currículum universitario y en qué medida se prevé que los estudiantes aprendan a aprender en la universidad. Se analizaron los componentes de AaA en los programas docentes de las universidades españolas, específicamente en las titulaciones de Pedagogía e Ingeniería en Telecomunicaciones. Se revisaron 20 321 competencias programadas para desarrollar a lo largo de 228 000 horas de formación. Se utilizó un modelo teórico para detectar la presencia de los componentes y se analizó su relación con las competencias disciplinares y transversales. Los resultados muestran la intención de enseñar a aprender para la disciplina, no sólo en sentido transversal; además, se observó un mayor peso al procesamiento de la información que al aprendizaje colaborativo y a la motivación. Se discuten las implicaciones teóricas de esta competencia y su transferencia entre disciplinas en educación superior.
Development of a Teacher Rating Scale for Giftedness (TRSG)
Authors: Aydın-Karaca Şeyda , Kılınç Şule
Published: June 2024

Introduction:

Intellectual giftedness is an important student characteristic that teachers need to take into consideration when designing education programs and providing educational support to these students. Effective nomination and identification are the basis for further education. In nominating gifted students for special educational programs, teachers play an important role by providing information about superior characteristics of students. The purpose of this study is to develop a teacher rating scale (TRSG) for nominating the children to gifted education programs.

Methods:

In order to develop a teacher rating scale (TRSG) for nominating the children to gifted education programs, the present study involved three stages: item generation, instrument application and validity-reliability analyses. One hundred sixty-nine teachers participated in the study. To ensure the validity of the scale, its content, construct and criterion-related validity were examined, and to ensure its reliability, its Cronbach alpha value was calculated. For content validity, three experts on gifted education examined the items and the whole scale in terms of successful intelligence theory. After their approval of the content, construct validity was examined by confirmatory factor analysis.

Results:

The result of the analysis supported the three-factor structure of the scale having 17 items. According to the results of the research, it has been established that the TRSG is a valid and reliable instrument, and it may be used to nominate gifted children based on the evaluations of the teachers.

Discussion:

Sternberg (2018) defined three components. According to the theory of Sternberg (2018), giftedness involves analytical, practical and creative intelligences, and they are associated not only with each other but also with a G factor. In the analysis, each item was classified under a component of successful intelligence theory and the statistical examinations supported the anticipated associations among the items and the factors.

Limitations:

The sample size of the teachers was small. The limitations of this study are the use of convenience sampling and the inclusion of only 169 teachers in the sample. Another limitation is rating bias.

Conclusions:

The results on the validity and reliability supported the notion that the scale is appropriate to be used for nomination purposes by teachers in gifted education programs. Its limited number of items, quick application, and simple scoring procedures make it advantageous for use in various contexts.
Elevated CO2 concentration alleviates the negative effect of vapour pressure deficit and soil drought on juvenile poplar growth
Authors: Orság Matěj , Berhongaray Gonzalo , Fischer Milan , Klem Karel , Ceulemans Reinhart , King John S. , Hlaváčová Marcela , Trnka Miroslav
Published: June 2024

The growth performance of short-rotation woody coppice (SRWC) is strongly influenced by successful establishment in the initial months after planting. Future climates, expected to be warmer due to elevated atmospheric CO2 (eCO2), may bring about more frequent soil droughts alongside increased vapour pressure deficit (eVPD). Hence, this growth chamber experiment aimed to explore the interactive effects of eVPD, eCO2, and soil drought on growth and physiology traits of juvenile hybrid poplars under warmer climates. Our findings with juvenile hybrid poplar J-105 revealed that eVPD resulted in reductions in leaf area (–21%), root (–20%) and stem biomass (–9%), as well as in net assimilation (–15%), stomatal conductance (–26%), and transpiration (–13%). However, these decreases were relatively minor compared to the compensating effect of eCO2, which generally exerted a stronger influence than eVPD. While soil drought emerged as the primary growth-limiting factor in our study, elevated VPD is not expected to pose a significant additional threat to central European SRWC plantations of juvenile hybrid poplars under future conditions of ongoing climate change.
Effect of Monetary Policy Decisions and Announcements on the Price of Cryptocurrencies: An Elastic-Net With Arima Residuals Approach
Authors: Peciulis Tomas , Vasiliauskaite Asta
Published: June 2024

Research purpose.

This study analysed the three cryptocurrencies with the largest market capitalization: Bitcoin, Ether (cryptocurrency built upon the Ethereum project's blockchain technology), and Binance coin, which account for 60% of the total cryptocurrency market capitalization. The purpose of this research was to measure the impact of monetary policy on the price of these cryptocurrencies using an adjusted R squared.

Design / Methodology / Approach.

As dependent variables, we used interest rates controlled by the European Central Bank and the Federal Reserve and reports from the European Central Bank and the Federal Open Market Committee. A robust Elastic Net Regression with Autoregressive Integrated Moving Average (ARIMA) residuals machine learning approach was applied to obtain robust regression coefficients and corresponding standard errors. To ascertain the robustness of the model, a technique known as rolling window cross-validation was employed.

Findings.

The results of this study show that monetary policy decisions and announcements significantly impact the price of cryptocurrencies. The impact on cryptocurrencies is likely to be significant both in the period of economic stability (2018-2020) and in the period of economic shocks (2020-2022). This relationship is likely to be indirect, acting through investor sentiment.

Originality / Value / Practical implications.

The results of this study may be useful to monetary policymakers, as they reveal the link between their actions and the price of cryptocurrencies. Our model will also be useful for mutual fund managers and private investors, as they can anticipate the price dynamics of cryptocurrencies when assessing monetary policy frameworks.
Are Non-formal Activities a Strategy to Improve Students’ Academic Performance?
Authors: Neacşa Ramona Adina , Vlaicu Claudia,
Published: June 2024

At the academic level, teaching and learning are mainly focused on formal curriculum, structured on courses, seminars and speciality practice, all of them finalizing with exams. Students have to treat very seriously this formal curriculum if they want to achieve good results and, at the end of the licence cycle, to occupy a good job for which they prepared.

The reserach aims to analyze if, by organizing non-formal activities with students from all three years of study, their academic performances are improving. This is also our reserach hypothesys – if students are involved in extracurricular activities, their perception about learging is enriched and their performances will improve. Reserach is mixed: qualitative and quantitative. The students investigated are matriculated in all three years of license study. The hypothesis is confirmed, after analyzing and interpreting the findings.

Research findings: even if, at the beginning, from various reasons, students are reticent at participating at non-formal activities, gradually they get involved more and their perception about learning the formal courses is enriched, their cultural horyzon is widened and consequently their academic results get better.
Framing Disaster Coverage of Earthquakes and Tsunamis on Online Media
Authors: Rosemary Rizanna , Syam Hamdani M. , Sartika Maini
Published: June 2024

Media has a significant role as the source of information for people to prepare for disaster and assist in minimizing disaster risk reduction. Examining how media frame disaster information helps to understand the quantity and quality of the information about the disaster. Earthquakes and Tsunamis in Indonesia are disasters causing massive losses and grieves, and how the media portray and frame the tragedy has influence people's perception and behaviour towards disasters. Since the first significant Earthquake and Tsunami in Aceh 18 years ago, followed by the same disasters in Banten and Palu in 2018, studies have yet to be found analyzing and comparing media coverage of earthquakes and tsunamis within the local media. This study aims to compare how local media frame the information about the Earthquakes and Tsunamis that occurred in Aceh and Palu using the Urs Dahiden framing model to analyze the frame themes in mass media. The findings show more negative coverage of the disasters, focusing more on the numbers of victims, material losses, and the government's incapability to disasters response. Disaster preparedness is framed through the lens of religious perspectives and less on scientific knowledge or how to better respond to future disasters.
Risk Analysis of Climate Induced Disaster in Coastal Bangladesh: Study on Dashmina Upazila in Patuakhali District
Authors: Faisal Md. , Saha Milton Kumar , Biswas A. K. M Abdul Ahad
Published: June 2024

The coastal region of Bangladesh is highly vulnerable to climate change and climate-induced natural disasters. Almost every year, the coastal people face different kinds of natural disasters like floods, tropical cyclones, tornadoes, tidal surges, droughts and large-scale river erosion. The main aim of this study was to identify, analyse and prioritize the existing climate-induced risks in the study area. This study was carried out in Dashmina Upazila under Patuakhali District in the southern coastal region of Bangladesh. The information has been collected through direct observations, key informant interview, focus group discussion and literature review.  The study finds the ranking of various hazards based on their perceived level of impact and severity. Storm surge holds the highest ranking at number one, indicates significant devastation and danger. Following closely behind are cyclones, river bank erosion and floods, ranked at two, three, and four, respectively. Hazards such as storm winds and high tides hold moderate rankings at five and six, indicating their potential for damage but to a slightly lesser extent. Pest attacks, irregular rainfall, and hail storms fall in the mid-range of severity, ranked at seven, eight, and nine, respectively. Lastly, salinity is ranked at ten. The study suggests that the identified disaster risk should consider in time of decision making for planning any development project for disaster risk reduction and the study serves as a guide for prioritizing preparedness and mitigation strategies and allocates resources to tackle higher-ranked hazards that pose greater threats to the community or environment.
THE DEVELOPMENT OF INNOVATIVE LEARNING MATERIAL WITH A PROJECT TO IMPROVE STUDENT'S CRITICAL THINKING SKILLS IN THE TEACHING OF REDOX TITRATION
Authors: Silalahi Gielf Justin Salisia Silrumson , Situmorang Manihar
Published: June 2024

Self-directed learning has become popular in higher education worldwide in recent years. As a result, students may have difficulty understanding higher education standards. Therefore, innovative learning materials that are relevant and easy to understand by students and provide opportunities for developing student's character so that they are competent in developing their knowledge capacity independently through high-level thinking skills such as critical thinking. Through the research and development method using the ADDIE Model, teaching materials are created by integrating the PjBL learning model to measure product feasibility scores, students' critical thinking abilities, and know student responses and learning outcomes. Based on the validation results, the average value of the validation results obtained was 89% (valid). After testing the product, it was discovered that the student response was 87.68% (good), the average critical thinking ability score was 87.36, indicating an increase and the average learning outcomes obtained by students were from 56.80 to 87.38, indicating an increase. Overall, the integrated teaching materials for the PjBL learning model on Redox Titration material are suitable.
Effect Of Turmeric Extract (Curcuma Domestical) On Egg Hatchability and Survival Larvae of Pomfret Fish (Colossoma Macropomum)
Authors: Zulfahmi Zulfahmi , Putra Dedi Fazriansyah , Arisa Iko Imelda , Muhammad Muhammad
Published: June 2024

The success factor in the cultivation of pomfret (Colossoma macropomum) is related to cultivation techniques, from parent selection to the quality of eggs at hatching. Hatching media must be free from parasites, in the form of bacteria, fungi and other disturbances that cause eggs to die. Parasite attacks on eggs can be prevented, one of which is natural ingredients that are safe to use such as turmeric (Curcuma domestical). The purpose of this study was to test the effectiveness of turmeric extract (Curcuma domestical) on egg hatchability and survival rate of pomfret fish (Colossoma macropomum) larvae. This study was structured using a completely randomized design (CRD) consisting of 5 treatments with 4 replications, namely: treatment A (Without C. domestical Extract), Treatment B (Concentration 5 ml/L C. domestical Extract), Treatment C (Concentration 10 ml/L C. domestical Extract) treatment D (Concentration 15 ml/L C. domestical Extract) and treatment E (Concentration 20 ml/L C. domestical Extract). The results showed that soaking pomfret eggs with a concentration of turmeric extract (Curcuma domestical) 15 ml/l gave a significant effect on egg hatchability by 58,25% and larval survival by 87,86%. The conclusion of this study is that soaking with turmeric extract at a concentration of 15 ml/L is not too significant for egg hatchability and survival of pomfret larvae.Keywords: Curcuma domestical extract, pomfret fish, egg hatchability, survival rate
Study of The Application of Spawnprim Hormone on Kawan Fish (Poropuntius Tawarensis)
Authors: Abdul Wahab Gunawan
Published: June 2024

Studi ini melihat bagaimana hormon spawnprim memengaruhi kematangan gonad ikan kawan (Poropuntius tawarensis). Studi ini dilakukan pada bulan November 2020 di Unit Pelaksana Teknis Dinas Balai Benih Ikan (UPTD BBI) Lukup Badak di Dinas Perikanan Kabupaten Aceh Tengah. Studi ini menggunakan rancangan acak lengkap (RAL) dengan empat kelompok perlakuan dan tiga kali pengulangan. Ikan kontrol kelompok A tidak dirawat. Hormon spawnprim diberikan kepada ikan kelompok B dengan dosis 0,5 ml/kg pakan, 1,0 ml/kg, dan 1,5 ml/kg pakan. Parameter fekunditas, gonadosomatik, dan hipatosomatik, serta peningkatan diameter telur, diamati pada selang kepercayaan 95%. Data dianalisis menggunakan ANOVA, yang merupakan analisis perbedaan antar perlakuan. Hasil penelitian menunjukkan bahwa pemberian hormon spawnprim kepada ikan kawan memiliki efek nyata (P0,05) pada gonadosomatik dan pertambahan diame telur. Kelompok perlakuan B, yang diberi dosis 1,5 ml/kg pakan, memiliki nilai rata-rata pertambahan diameter telur 0,92 mm, 62,26 mm, dan 650,66 butir, sedangkan nilai hepatosomatik index tertinggi adalah 0,92 mm.
Maternal education and childhood immunization status in Saudi Arabia
Authors: Alotaibi Haifa , Askar Modhi , Alhabdan Soltana , Alharbi Rola , Aljarbou Alanoud
Published: June 2024

Background: It has been hypothesized that mothers' education levels are crucial in promoting health-seeking behaviors that enhance child vaccination. This study aimed to estimate the association between maternal education and childhood immunization status in Riyadh, Saudi Arabia, and to identify other possible factors that influence childhood immunization.
Methods: A cross-sectional study was conducted from June to November 2022 using an online questionnaire structured into three main sections. 385 mothers residing in Riyadh, Saudi Arabia, and with children aged between birth and 6 years old, completed the survey and were included in the statistical analysis.
Results: Mothers who were bachelor's degree holders constitute 61.3%. Most of them were married (89.4%), and 42.6% were government employees. Mothers' most common source of information was a child pediatrician (48.8%). The prevalence of children who were up to date with immunization status was 87%. Among those who were delayed/unvaccinated (n = 50), the most common reason was the inconvenient opening hours of the immunization site (46%). When measuring the relationship between child immunization status and the socio-demographic characteristics of participants, it was revealed that child immunization uptake was significantly more common among mothers who had better education (p = 0.009), married mothers (p = 0.022), mothers with a child aged 3-6 years (p = 0.002), and having a child without a medical condition (p < 0.001).
Conclusion: This study has revealed a positive association between educated mothers and increased children's vaccination uptake, as well as the importance of the healthcare provider's role in carrying reliable and trusted information to mothers, contributing to higher child immunization rates.
El arte de la ilustración de una artista que se define como ambientalista y feminista
Authors: Cárdenas Roa Angie Vanessa
Published: June 2024

Angie Vanessa Cárdenas Roa es colombiana, nació en Norte de Santander y a temprana edad se radicó con su familia en Bogotá, donde vivió su niñez y primera parte de su juventud. Ingresó a la Universidad Nacional de Bogotá a estudiar Diseño Industrial, donde avanzó de manera significativa en sus estudios, hasta que una experiencia de violencia de género en el espacio público la conllevó a migrar a Uruguay, donde realizó una pasantía profesional y, posteriormente se radicó en Ecuador, donde ha encontrado un espacio vital para su desarrollo artístico, laboral y existencial y donde reside en la actualidad.
TRÁNSITOS NOSTÁLGICOS: habitando las posibilidades de los trans y su vinculación errática con lo monstruoso (reseña del libro)
Authors: Jaime Díaz Diana Angélica
Published: June 2024

Reseña del libro TRÁNSITOS NOSTÁLGICOS: habitando las posibilidades de los trans y su vinculación errática con lo monstruoso, de la PHD. Ingrid Catherine Bermejo Camacho de la Universidad Javeriana de Bogotá. Su texto parte de una pregunta de carácter genealógico, en donde se cuestionan las narrativas de poder sobre los cuerpos de las disidencias sexuales desde la colonia, pasando por el siglo XIX, XX y en la actualidad.
Cultural Influences on Problem Solving and Decision-Making in Student Projects: A Comparative Study between Indonesia and Germany
Authors: Achmad Fandi , Febriyani Widia , Nzefa Raoul , Ahkim Fadma , Rania Attouk
Published: June 2024

Differences in cultural dimensions across countries can influence approaches and behavior patterns in education. Therefore, this study aims to analyze the influence of culture on problem-solving and decision-making in student projects in Indonesia and Germany. A comparative approach between the two countries identifies significant cultural differences in power distance, individualism, masculinity, uncertainty avoidance, long-term orientation, and indulgence. The research method used is a qualitative approach with descriptive analysis. Data was collected through interviews and observations of students involved in the project. The study results show that cultural differences affect students' approaches to problem-solving and decision-making. In Indonesia, group cooperation and conformity to social norms play an important role, while independence and critical thinking are prioritized in Germany. The implications of this research are the importance of increasing cultural awareness, developing collaborative skills, increasing independence and critical thinking, and empowering students with cultural knowledge. By understanding cultural differences and taking the right steps, educators can create an inclusive learning environment and prepare students to face the challenges of an increasingly globalized world.
Expression of Wilms tumor one gene, cyclin D1, and p53 in acute leukemia – An immunohistochemical study in a tertiary care center from North India
Authors: Bellichukki Priyanka , Arora Prerna , Garg Sandeep
Published: June 2024

Objectives:

Various genetic abnormalities affect the expression pattern of key genes involved in acute leukemia (AL). Wilms’ tumor gene 1 (WT1) is overexpressed in 70–90% of AL and is considered an adverse prognostic factor. Little is known about the role of cyclin D1 in AL. Genotyping of p53 is relatively common; however, in resource-limited settings, p53 protein expression by immunohistochemistry (IHC) can be a sensitive and specific tool for p53 mutations and copy number alterations in AL.

Material and Methods:

In this study, we set out to analyze the IHC expression of WT1, cyclin D1, and p53 in AL and correlate the expression with various clinico-hematologic parameters.

Results:

Thirty-five cases of AL were analyzed. WT1 expression was observed in 31% (11/35), while cyclin D1 and p53 expression was present in 5.7% (2/35) and 43 % (15/35) of leukemic blasts. WT1 expression was significantly associated with male sex, young age group, bleeding manifestation, and presence of splenomegaly. The absence of cyclin D1 expression was seen in all cases of acute lymphoblastic leukemia and 92.3% of acute myeloid leukemia with significant association with age and gender. Only seven cases of AL revealed positive p53 expression. No statistically significant association of p53 was noticed with age, gender, organomegaly, or lymphadenopathy.

Conclusion:

To the best of our knowledge, the diagnostic utility of WT1, cyclin D1, and p53 expression in AL using IHC has not been reported previously, especially from the Indian subcontinent.
Die Entwicklung der Flugsicherung in Deutschland Teil 1, Die Flugsicherung in Deutschland vor 1945: ein Rückblick
Authors:   International Advisory Group Air Navigation Services (ANSA), Fischer Frank W.
Published: June 2024

Dies ist der erste Teil der Dokumentation über den Verkehrsdienst Flugsicherung als tragender Teil des zivilen Flugverkehrssystems in Deutschland im Rückblick über seine Entwicklung in der Zeit von 1919 bis 1945. Dieser Rückblick in seine Entwicklungsgeschichte in den Jahren vor dem Zweiten Weltkrieg beschreibt die im Laufe der Jahre entstandenen Erfordernisse zur Absicherung der in immer größerer Zahl durchgeführten Flüge - einer Zeit, in der Deutschland wesentlich zur weltweiten Entwicklung der Flugsicherung beigetragen hatte. Die Dokumentation soll dem Leser ermöglichen, einen Gesamtüberblick über diesen speziellen Verkehrsdienst mit dem Zusammenwirken aller seiner Komponenten aus den Anfangsjahren seines Entstehens zu gewinnen. Das vorliegende Buch wendet sich im wesentlichen an die heutigen und künftigen Fachleute, die sich mit der Thematik des Luftverkehrsmanagements beschäftigen und somit primär an alle Mitglieder der Luftfahrtgemeinde sowie die mit einem engen Bezug zur Flugzeugführung und mit der Durchführung von Flügen und der Kontrolle ihrer Bewegungslenkung befassten Fachleute. Außerdem möge diese Dokumentation historischen Einrichtungen, wie beispielsweise Museen und dergleichen, die sich diesem Thema widmen, als Anhalt zu den bislang zumeist unbekannten betrieblichen Vorgängen in diesem System und seinen Zusammenhängen seit seinen Anfängen dienen. Diese Dokumentation erfüllt weiterhin den Zweck einer Referenz über das Flugsicherungssystem und der Erläuterung seiner Arbeitsweise.
SISTEM INFORMASI PERGUDANGAN DAN PENGENDALIAN PERSEDIAAN STOK BARANG MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY
Authors: Putra Rachmat Kurniawan , Ilhamsyah Ilhamsyah , Mutiah Nurul
Published: June 2024

Kebutuhan menyimpan barang serta manajemen gudang yang baik adalah kewajiban organisasi dalam setiap skala. Perpaduan antara teknologi informasi dan manajemen gudang akan mendorong efisiensi kerja dan pemenuhan kebutuhan yang optimal. Saat ini Koperasi Karyawan Angkasa Pura II Bandara Supadio mempunyai enam unit usaha dengan satu gudang terpadu dimana data gudang diolah secara manual menggunakan aplikasi perkantoran serta melakukan stok ulang ketika barang sudah habis atau hampir habis. Data yang diolah berupa data pemesanan, barang masuk, barang keluar serta jumlah penjulaan. Stok ulang barang tanpa perencanaan serta banyakya data yang diolah membuat kinerja Koperasi tidak maksimal, memicu olah data yang tidak tepat, dan memicu kekurangan atau kelebihan barang pada gudang. Penelitian ini mengusulkan sebuah sistem pergudangan dan pengendalian stok barang dengan mengimplementasikan metode Economic Order Quantity (EOQ) dimana sistem ini dapat mengontrol siklus barang masuk dan barang keluar, mengelola penjualan serta memberikan peramalan jumlah stok barang optimal beserta jumlah stok aman (safety stock) dan titik pemesanan kembali (reorder point) untuk memenuhi ketidakpastian permintaan. Hasil penelitian ini berupa sebuah sistem yang dapat mengelola data barang gudang dan dapat mengontrol persediaan barang optimal dimana hasil pengujian fungsionalitas sistem menyatakan sistem berjalan sesuai dengan yang diharapkan dengan nilai 87,76% berdasarkan skala likert.
PENERAPAN DROPOUT PADA JARINGAN SARAF TIRUAN BACKPROPAGATION DALAM MENGKLASIFIKASI TINGKAT FINE FUEL MOISTURE CODE (FFMC) UNTUK KEBAKARAN HUTAN DAN LAHAN
Authors: Guntoro Irwan , Midyanti Dwi Marisa , Hidayati Rahmi
Published: June 2024

Sistem Peringkat Bahaya Kebakaran hutan/lahan (SPBK) merupakan sistem peringatan dan deteksi dini kebakaran hutan/lahan di Indonesia. SPBK telah dikembangkan di Indonesia melalui penerapan Fire Weather Index (FWI). FWI terdiri dari 3 buat komponen, yaitu Fine Fuel Moisture Code (FFMC), Duff Moisture Code (DMC), dan Drought Code (DC). FFMC merupakan indikator potensi penyulutan api menjadi kebakaran hutan/lahan. FFMC memiliki empat kelas, yaitu rendah, sedang, tinggi, dan ekstrim. Tingkat FFMC dapat diklasifikasi berdasarkan 4 faktor yang mempengaruhi FFMC, yaitu suhu, curah hujan, kelembapan udara, dan kecepatan angin. Algoritma backpropagation merupakan metode klasifikasi yang dapat digunakan dalam mengklasifikasi tingkat FFMC. Algoritma backpropagation merupakan salah satu jaringan saraf tiruan yang digunakan untuk mengklasifkasi data. Penelitian ini menerapkan metode dropout pada algoritma. Metode dropout digunakan untuk mengurangi overfitting pada saat pelatihan jaringan saraf tiruan. Penelitian menggunakan data atribut suhu udara, kelembaban udara, kecepatan angin, dan curah hujan untuk diklasifikasi pada kelas FFMC. Dari hasil percobaan, performa model terbaik yang dihasilkan selama pelatihan JST adalah learning rate 0,5, iterasi 1000, MSE = 0,377, dan overfitting = 0,1408. Hasil klasifikasi kelas FFMC dengan menggunakan 557 data uji diperoleh tingkat akurasi sebesar 61.265%.
PERBANDINGAN METODE TEMPLATE MATCHING DENGAN K-NEAREST NEIGHBOUR DALAM IDENTIFIKASI KARAKTER (STUDI KASUS: PADA PLAT KENDARAAN)
Authors: Wijaya Andry Tanu , Sitorus Sampe Hotlan , Ristian Uray
Published: June 2024

Identifikasi karakter plat nomor kendaraan merupakan salah satu upaya mempermudah pelacakan plat kendaraan. Salah satu upaya yang dilakukan yaitu dengan cara mengidentifikasi citra karakter plat nomor kendaraan pribadi dengan keluaran berupa text dan angka. Salah satu permasalahan dalam identifikasi karakter pada plat nomor yang biasa dihadapi adalah identifikasi plat nomor yang masih dilakukan secara manual, Penelitian ini bertujuan membangun aplikasi untuk identifikasi karakter plat nomor kendaraan untuk mengatasi permasalahan tersebut. Metode yang digunakan dalam penelitian ini adalah Template Matching dengan mencocokan setiap angka dan huruf yang di uji dengan mencari nilai eror terkecil, dan K-Nearest Neighbour dengan mengklasifikasikan nilai tetangga terdekat dari perbandingan data latih yang digunakan dengan membandingkan kedua metode yang digunakan dalam penelitian, metode K-Nearest Neighbour mendapatkan nilai akurasi terbaik dikarenakan hasil yang lebih akurat. Pengujian dilakukan menggunakan 30 data uji, data yang diuji menggunakan 3 varian jarak yaitu 25cm, 75cm, dan 150cm. Setiap jarak diambil 10 data uji dengan keadaan kendaraan tidak bergerak. Berdasarkan hasil pengujian, diperoleh nilai akurasi dalam membaca karakter pada plat kendaraan dengan menggunakan metode Template Matching sebesar 70,4% dan akurasi  dalam membaca plat kendaraan sebesar 3,33%. Adapun nilai akurasi dari metode K-Nearest Neighbour sebesar 74,6% dan akurasi dalam membaca plat kendaraan sebesar 3,33%.
IMPLEMENTASI METODE PORT KNOCKING PADA SISTEM KEAMANAN SERVER UBUNTU VIRTUAL BERBASIS WEB MONITORING
Authors: Ernawati Rosalia , Ruslianto Ikhwan , Bahri Syamsul
Published: June 2024

Keamanan server adalah hal terpenting bagi administrator. Administrator adalah orang yang berhak mengakses server. Ketika terjadi akses ilegal dan ambil alih administrator pada server, sistem dikatakan tidak aman. Port 22 sebagai layanan pada server dan sebagai titik terpenting yang harus diamankan, hal ini dikarenakan layanannya paling banyak diincar attacker. Mengatasi hal tersebut telah diterapkan firewall sebagai dinding penghalang akses. Tetapi penggunaannya masih kurang efektif dikarenakan menutup semua akses tanpa memperdulikan siapapun yang terkoneksi dalam jaringan. Meningkatkan kemanan server menggunakan metode port knocking, cara kerja metode yaitu server menerima percobaan koneksi dari client menuju port 22, setelah itu firewall mendeteksi percobaan dan memperbolehkan client mengakses server, ketika knock sesuai dengan yang ada pada sistem. Untuk melihat ketahanan pada metode dilakukan pengujian menggunakan port scanning, DDOS attack dan brute force. hasil dari pengujian menunjukan bahwa pada port scanning dilakukan pengujian sebanyak 15 kali dan port 22 100% berstatus tertutup, pengujian DDOS attack dilakukan sebanyak 30 kali 90% metode berhasil mengatasi serangan. Pengujian brute force dilakukan sebanyak 26 kali dan 100% metode berhasil menghalangi penyerangan. Dalam penelitian ini metode port knocking mampu mengamankan server dari akses ilegal dan mengatasi permasalahan pada firewall yang memblok semua akses.
Sistem Pendukung Keputusan Penentuan Siswa Berprestasi Menggunakan Metode TOPSIS (Studi Kasus: SMK Negeri 5 Pontianak)
Authors: Avivah Avivah , Sari Renny Puspita , Rusi Ibnur
Published: June 2024

SMK Negeri 5 Pontianak merupakan sekolah yang peduli terhadap prestasi siswa, salah satunya dengan memberikan apresiasi kepada siswa yang berprestasi dalam bidang akademik. Apresiasi tersebut dapat memicu semangat siswa untuk meningkatkan semangat belajar supaya mencapai prestasi yang lebih baik. Penentuan siswa berprestasi yang dilakukan oleh SMK Negeri 5 masih bersifat manual tanpa adanya bantuan dari sistem dalam proses pengambilan keputusan. Penelitian ini bertujuan untuk membangun sebuah sistem pendukung keputusan yang dapat menunjang kemudahan dalam menentukan siswa berprestasi menggunakan metode TOPSIS. Penentuan alternatif terbaik dalam perhitungan metode TOPSIS berdasarkan pada alternatif yang memiliki jarak terdekat dari nilai solusi ideal positif dan jarak terpanjang dari nilai solusi ideal negatif. Hal tersebut tentunya dapat mencegah terjadinya kesalahan, seperti kesalahan dalam perhitungan nilai siswa dan pengambilan keputusan yang tidak objektif. Data kriteria yang digunakan yaitu nilai rata-rata raport, nilai absensi, nilai ekstrakurikuler, dan nilai kepribadian. Pengambilan keputusan dilakukan oleh Wakil Kesiswaan. Hasil dari perangkingan metode TOPSIS merupakan rekomendasi penerima siswa berprestasi yang dihasilkan oleh sistem. Sistem ini telah dilakukan pengujian fungsional kepada pihak sekolah dan memperoleh hasil sesuai dengan rancangan serta dapat menunjukkan transparansi dalam penentuan siswa berprestasi. Sedangkan pengujian antarmuka sistem memperoleh presentasi sebesar 87.83%.
Sistem Pemantauan dan Pengontrolan pada Rumah Budi Daya Burung Walet Berbasis Internet of Things
Authors: Hamdi Hamdi , Ruslianto Ikhwan , Suhardi Suhardi
Published: June 2024

Burung walet menyenangi tempat yang bersuhu relatif rendah sebagai tempat membuat sarang, Suhu dan kelembapan optimum di dalam gedung dibutuhkan walet sebagai zona nyaman untuk beristirahat. Suhu dan kelembapan udara yang terlalu rendah maupun tinggi akan mengurangi produktivitas sarang dan kenyamanan walet serta memilih tempat yang pencahayaan mendekati gelap total sebagai tempat bersarang. Oleh karena itu, dibutuhkan suatu sistem yang dapat memantau dan mengontrol suhu, kelembapan udara, tinggi air, intensitas cahaya dan suara speaker sesuai kebutuhan yang ada di rumah burung walet  melalui website. Penelitian ini menggunakan sistem berbasis Internet of Things untuk pemantauan dan pengontrolan di rumah burung walet. NodeMCU ESP32 dan Wemos D1 Mini digunakan sebagai kendali keseluruhan komponen perangkat keras dan perangkat lunak. Sensor DHT11 untuk pembacaan suhu udara dan kelembapan udara, sensor ultrasonik untuk pembacaan tinggi air dan sensor LDR untuk pembacaan intensitas cahaya. Pengguna dapat melakukan pengontrolan pada perangkat keras secara otomatis dan manual melalui website. Pengujian pembacaan suhu udara mendapatkan nilai error sebesar 0,39%, nilai error kelembapan udara sebesar 0,77%, nilai error tinggi air sebesar 2,55% serta nilai error intensitas cahaya sebesar 1,73%.Kata kunci: Burung Walet, Internet of Things, Website, Sensor.
SISTEM KEAMANAN SEPEDA MOTOR MENGGUNAKAN GPS, RFID DAN PEMBATAS KECEPATAN DENGAN ARDUINO UNO BERBASIS IOT
Authors: Himawan Irwan Argi , Rismawan Tedy , Suhardi Suhardi
Published: June 2024

Keselamatan dan keamanan sepeda motor saat berkendara merupakan hal yang sangat penting dan wajib bagi setiap pengguna kendaraan. Namun tidak semua orang memahami bahaya kecelakaan lalu lintas dan pencurian sepeda motor yang dapat merugikan dan mengancam nyawa seseorang setiap hari. Oleh karena itu, dibuatlah alat yang dapat meminimalisir tingkat terjadinya kecelakaan lalu lintas dan pencurian sepeda motor. Alat ini memiliki tiga komponen yaitu RFID (Radio Frequency Identification) sebagai pengganti kunci kontak sepeda motor, GPS (Global Positioning System) sebagai pelacak kendaraan dan pembatas kecepatan untuk membatasi kecepatan sepeda motor, ketiga komponen tersebut Dibangun dengan mikrokontroler Arduino Uno dan NodeMCU ESP8266 dengan antarmuka Telegram. Hasil pengujian sensor RFID dapat menghidupkan atau mematikan sepeda motor, dan dapat digunakan sebagai pengganti kunci ganda sepeda motor dengan rata-rata waktu respon kartu dalam kondisi mati-hidup adalah 0.31 detik dan pada kondisi hidup-mati 0.28 detik. Sistem pembatas kecepatan dapat membatasi peringkat kecepatan sepeda motor dengan kisaran 0-40Km/jam dengan rata-rata error pembacaan kecepatan 7.1%. Pada sistem GPS dapat melacak lokasi kendaraan dengan rata-rata nilai akurasi  pembacaan pelacakan sebesar 8.348 meter.Kata kunci: RFID, Keselamatan, Keamanan, Pelacakan, Kendaraan, Kecepatan, Telegram, IoT
Exploration of Opinion Movers Interaction Patterns in the Social Network Analysis Method on Twitter (Case Study: keyword kabinet indonesia maju)
Authors: Akbar Muhamad Andre , Prawira Dian , Rahmayudha Syahru
Published: June 2024

The development of internet media and social networks from year to year has increased resulting in a lot of data and information that can be managed into useful information in the application of several analytical methods. One of the studies that studies the relationship of social interaction is Social Network Analysis (SNA). This research was conducted by visualizing the SNA method into a python program by retrieving data on Twitter to obtain information and explore interactions and opinion drivers on Twitter. Research using the keyword Indonesiamaju. The calculation results of the Bernadgh account program are keyplayers, with a value of degree centrality 228, betweenness centrality 0.99, closenness centrality 0.87, and eigenvector centrality 0.707. This program has been tested for blackbox testing by running program functions such as crawling twitter data, input data, datasets, making edges and nodes, displaying a graph, sorted degree centrality, sorted betwenness centrality, sorted closeness centrality, and sorted eigenvector centrality. The result of this research is a program that is able to run the social network analysis method in accordance with the program flow that has been made
Analisis Sentimen Vaksin Covid-19 Pada Media Sosial Twitter Menggunakan Metode Naive Bayes
Authors: Indriyani Tiya , Sari Renny Puspita , Febriyanto Ferdy
Published: June 2024

Coronavirus disease 2019 (Covid-19) merupakan kasus pandemik pnumonia yang ditularkan dari manusia ke manusia melalui droplet. Sejak korban pertama ditemukan, Covid-19 telah menginfeksi jutaan manusia dan ratusan ribu kasus meninggal. Berbagai upaya pencegahan penyebaran virus dilakukan, yang salah satunya adalah pemberian vaksin kepada masyarakat. Namun banyak terjadi perdebatan yang dinilai pemerintah terlalu gegabah dengan mewajibkan vaksin. Banyak opini yang bermunculan dari masyarakat yang dituangkan melalui sosial media, diantaranya twitter. Oleh karena itu, dibuat sistem yang dapat mengolah data yang sangat banyak untuk dilihat kecendrungan sentimen publik terhadap kata ‘vaksin’. Metode klasifikasi data yang digunakan dalam penelitian ini adalah Naive Bayes. Sebelum pengklasifikasian data terlebih dahulu dilakukan crawling data dari twitter yang selanjutnya setiap dokumen akan diberikan label untuk bisa dilakukan preprocessing dan pembobotan TF-IDF. Berdasarkan penelitian yang dilakukan dengan menggunakan metode Naive Bayes, disimpulkan bahwa sistem dapat mengklasifikasikan polaritas sentimen kedalam 3 kategori, yaitu positif, negatif dan netral. Hasil sentimen analisis yang dilakukan pada kata vaksin menunjukan tingkat sentimen positif lebih besar dibandingkan dengan tingkat sentimen negatif. Hal ini berdasarkan hasil performa Naive Bayes yang menunjukan hasil positif sebanyak 241 (48.2%), negatif 182 (36.5%) dan netral 77 (15.3%) dari total 500 dataset dengan tingkat akurasi sebesar 0,856.
IMPLEMENTASI METODE K-MEDOIDS DAN HEAP SORT DALAM PENGELOMPOKAN SISWA PENERIMA DANA BANTUAN OPERASIONAL SEKOLAH DI SMA N 1 PEMANGKAT
Authors: Lutfi Muhammad , Setyaningsih Fatma Agus
Published: June 2024

Program Bantuan Operasional Sekolah (BOS) merupakan bantuan pendanaan yang diberikan oleh Kementerian Pendidikan dan Kebudayaan (Kemendikbud) kepada sekolah yang dapat dimanfaatkan untuk berbagai biaya operasional sekolah. Terkait dengan pelaksaan pemberian dana BOS kepada siswa, kadang kala terjadi kesulitan untuk menentukan siswa yang benar-benar layak untuk mendapatkan dana BOS tersebut dikarenakan banyaknya siswa di SMA N 1 Pemangkat. Penelitian ini bertujuan untuk membangun sebuah sistem yang mampu menentukan siswa yang layak menerima beasiswa dana BOS tersebut. Dalam penelitian menggunakan metode K-Medoids dan Heap Sort untuk Pengelompokan Siswa Penerima Dana BOS di SMA N 1 Pemangkat. Data yang digunakan adalah 450 data siswa dengan  kriteria kelas, nilai rapot, penghasilan orang tua, tanggungan orang tua, dan prestasi pada  tahun ajaran 2019/ 2020. Keluaran yang dihasilkan berupa empat cluster, yaitu cluster medoid 0 berjumlah 21 orang , cluster medoid 1 berjumlah 40 orang, cluster medoid 2 berjumlah 293 orang dan cluster medoid 3 berjumlah 96 orang. Dimana setelah dihitung menggunakan pembobotan dan dicari nilai rata-rata per-cluster didapatkan bahwa cluster medoid 0 merupakan kategori sangat membutuhkan unutk menerima dana BOS dengan nilai rata-rata 2,6.
IMPLEMENTASI SISTEM PADA AUTOMASI BARRIER GATE PALANG PINTU PARKIR MENGGUNAKAN ESP32 DAN RFID
Authors: Robiyanto Robi , Putra Willy Permana , Raswa Raswa
Published: June 2024

Internet of Things adalah sebuah konsep yang memperluas manfaat koneksi internet yang selalu terhubung, memungkinkan untuk menghubungkan mesin, perangkat, dan objek fisik lainnya dengan sensor untuk memperoleh data. Barrier Gate merupakan suatu alat  keamanan yang berfungsi sebagai alat pembatas akses  kendaraan menuju area parkir atau halaman suatu  gedung atau tempat usaha dan juga dapat digunakan untuk mengatur lalu lintas kendaraan di kawasan pemukiman. Permasalahan yang sering dihadapi dalam parkir kendaraan secara konvensional atau manual yaitu antara lain tidak tersedianya informasi parkir yang detail, efektif, dan secara real time. Serta kurangnya transparansi dalam pengelolaan parkir yang sehingga pencatatan pengunjung atau pengguna area parkir tidak dapat di manajemen secara baik. Untuk mengatasi hal tersebut diperlukannya alat bantu yang dapat mengontrol jumlah kendaraan yang masuk kedalam area parkir. Alat yang digunakan yaitu menggunakan Mikrokontroller ESP32, CP2102, ATmega32U4, RFID, dan Relay 2 Channel. Sistem ini melibatkan penggunaan kartu untuk masuk dan keluar parkiran, database untuk menyimpan data pengguna, dan monitor untuk menampilkan informasi parkiran. Dengan adanya alat ini, diharapkan keamanan parkiran meningkat, dan petugas dapat lebih efisien dalam mengawasi kondisi parkiran melalui sistem. Sehingga, solusi ini berkontribusi pada terciptanya parkiran yang lebih teratur dan terhindar dari masalah kelebihan kapasitas.