bluuebunny/crossref_metadata_2025 huggingface dataset:
Spatial Interpolation Long-Term Patterns Capacity of Renewable Energy in Sumatera
Authors: Vatresia Arie , Lestari Etika , Utama Ferzha , Daratha Novalio
Published: June 2024

Indonesia possesses considerable capacity for renewable energy as a result of its plentiful natural resources, including geothermal, solar, wind, hydro, and biomass. Nevertheless, the nation's existing energy composition is predominantly dependent on non-renewable resources, with fossil fuels constituting approximately 95% of its overall energy consumption. Nevertheless, Indonesia has made notable advancements in augmenting its renewable energy output in recent years. Nevertheless, there is still a lack of clarity about the identification of suitable regions for the installation of solar power plants (PLTS) in order to facilitate the development of solar energy. This study employed a methodology to investigate and forecast the solar energy potential in Sumatra, Indonesia. The data utilized consists of MERRA-2 reanalyzing information spanning from 1980 to 2019, collected on a daily basis. The data is analyzed and shown using IDW (Inverse Distance Weighting) and ARIMA techniques to visualize the spatial variation of solar energy potential in Sumatra. ARIMA is employed as a supplementary method to the interpolation technique in order to get long-term projections of solar energy potential for the period spanning from 2020 to 2029. The analysis of the best interpolation method for estimating solar energy potential reveals that the IDW approach with a power of 5 yields the most accurate findings, with an RMSE value of 28.33. For long-term prediction of solar potential in Aceh province, the ARIMA (1,0,0) method is recommended, which has a MAPE value of 0.0219. The findings indicated that Lampung and Bengkulu frequently experience the distribution of solar energy with an intensity ranging from 1400 to 1450 kWh. In addition, the forecast of the potential over Sumatera Island yielded encouraging results using the GAM model, with a root mean square error (RSME) rate of 0.05103.
СУУТНЫГ ЗААВАЛ ФИЛОСОФИЧ ГЭХ ШААРДЛАГАТАЙ ЮУ?
Authors: Ц Гомбосүрэн , Б Дагзмаа
Published: June 2024

Энэ өгүүлэлд Өндөр гэгээн Занабазарын зарим зохиол болон түүний бүтээсэн Соёмбо сүлдийг гүн ухааны бүтээл хэмээн зарим судлаач үнэлж байдагт философийн үүднээс товч шинжилгээ хийсэн болно. Гомбодоржийн Занабазар бол философи сэтгэлгээний үр дүнгээс хэтийдсэн буддын шашны сургаал, зарлиг айлдсан гэгээн хутагт хүн мөн гэсэн ерөнхий дүгнэлтэнд хүрсэн болно.
МОНГОЛЫН ХУТАГТ ХУВИЛГААДЫН ТАЛААРХ ЗАРИМ ТООН БА ЧАНАРЫН СУДАЛГААНЫ ХАРЬЦУУЛАЛТ
Authors: М Гантуяа , Ч Дарханхүү
Published: June 2024

Монголд хутагт хувилгаадыг анх хэдий үеэс тодруулсан, тэр нь ямар учир шалтгаантай байсан, хорьдугаар зууны гучаад он хүртэл хичнээн хутагт хувилгаад тодорсон, түүний цаана монголчуудын сэтгэл санааны ямар хүсэл сонирхол нуугдаж байсан, энэ талаар ямар ямар судалгаа байдгийг болон сүүлийн үед тодорсон хутагт хувилгаадын талаархи тоон ба чанарын судалгаа хийхийг бид зорьсон юм. Энэхүү илтгэлдээ дараахь хоёр асуудлыг хөндөв. Нэгд, Эртний болон өнөө цагийн Монголын хутагт хувилгаадын талаархи Орос болон Хятад сурвалжийн мэдээллийг харьцуулах, Хоёрт, Монголд хутагт хувилгаад тодруулж ирсэн үйл явцыг монгол хүний сэтгэлзүйн онцлогт харгалдуулж авч үзнэ.
ЗАНАБАЗАРЫН БҮТЭЭСЭН БУРХАДУУДЫН ТУХАЙ
Authors: Б Дэлгэрмаа , Д Гоомарал
Published: June 2024

Энэхүү илтгэлдээ Анхдугаар богд Өндөр гэгээний бүтээсэн бурхадын талаар өгүүлнэ.
Análise da prescrição de probióticos por nutricionistas no tratamento de pacientes oncológicos
Authors: Sousa Barros Fernanda , Reis Theodoro de Freitas Thamires , Moraes Ribeiro Nalu , Weyll Souza de Oliveira Tchana , Silva de Jesus Raquel Cristina , Hernandes de Abreu de Oliveira Salgueiro Marcia Maria , Cordeiro de Souza Anselmo
Published: June 2024

O estudo sobre o câncer, suas causas e tratamentos, ganha cada vez mais relevância na comunidade científica, chegando a ser a segunda causa de mortes no mundo. Assim, pesquisas vêm sendo realizadas para compreender e descrever o uso dos probióticos nessa terapêutica, visto que estes vêm se mostrando benéficos na associação ao tratamento, apesar de não estar completamente claro como a implementação tem sido feita. O objetivo do presente trabalho foi analisar a prescrição de probióticos realizada por nutricionistas no paciente oncológico, buscando conhecer as implicações de sua aplicação prática. Trata-se de um estudo não experimental, exploratório e descritivo de abordagem quantitativa, com amostra não probabilística, por conveniência e de adesão espontânea, tendo como público-alvo nutricionistas especialistas em oncologia. Ele obedeceu às seguintes etapas: 1) elaboração de questionário pela plataforma Google Forms®; 2) captação dos participantes individualmente via internet (WhatsApp, e-mail etc.) conforme critério de inclusão proposto e apresentação do TCLE para aceite; 3) diante da concordância do termo, foi permitido ao nutricionista responder o questionário digital, que ficou disponível por 60 dias; 4) análise das respostas obtidas; 5) tabulação dos dados; e 6) exame dos resultados comparados às evidências científicas disponíveis. Os achados levam a concluir que os nutricionistas consultados, prevalentemente, relatam fazer uso de probióticos no contexto clínico e na imunoterapia, além de indicar autorrelato de resultados promissores no uso da terapia.
Online and hybrid annual general meetings: Embracing the evolution
Authors: Sigurjonsson Throstur Olaf , Arnardottir Audur Arna , Wendt Stefan
Published: June 2024

Annual general meetings (AGMs) are evolving rapidly due to, among other things, multiple new digital solutions (Randøy et al., 2022), the COVID-19 pandemic, and legislative/regulatory changes (Nili & Shaner, 2022; Härmand, 2021). This paper aims to analyze stakeholders’ experience with AGMs in 2021 and 2022, the challenges and opportunities of online and hybrid AGMs, and stakeholders’ expectations for the future format of AGMs. The research employs two questionnaire-based surveys of Icelandic-listed companies’ shareholders, board members, chief executive officers (CEOs), and compliance and investor relations officers. All stakeholder groups consider hybrid and online AGMs efficient and environmentally friendly. Technical difficulties with voting processes are of no significant concern. Hybrid and online AGMs are considered to lead to broader attendance by a diverse group of shareholders, but not necessarily of small shareholders. Concerns exist regarding the adequate discussion of contentious proposals, management oversight, and fulsome interaction between attendees. The originality of the research stems from analyzing the views of four stakeholder groups, i.e., shareholders, board members, CEOs, and compliance and investor relations officers, regarding online and hybrid AGMs. This approach allows for a comprehensive understanding of the challenges and opportunities of these AGM formats.
A Novel Human-Based Meta-Heuristic Algorithm: Dragon Boat Optimization
Authors: Li Xiang , Lan Long , Lahza Husam , Yang Shaowu , Wang Shuihua , Yang Wenjing , Liu Hengzhu , Zhang Yudong
Published: June 2024

Dragon Boat Racing, a popular aquatic folklore team sport, is
traditionally held during the Dragon Boat Festival. Inspired by this
event, we propose a novel human-based meta-heuristic algorithm called
dragon boat optimization (DBO) in this paper. It models the unique
behaviors of each crew member on the dragon boat during the race by
introducing social psychology mechanisms (social loafing, social
incentive). Throughout this process, the focus is on the interaction and
collaboration among the crew members, as well as their decision-making
in different situations. During each iteration, DBO implements different
state updating strategies. By modelling the crew’s behavior and
adjusting the state updating strategies, DBO is able to maintain
high-performance efficiency. We have tested the DBO algorithm with 29
mathematical optimization problems and 2 structural design problems. The
experimental results demonstrate that DBO is competitive with
state-of-the-art meta-heuristic algorithms as well as conventional
methods.
Specificity of small-format text of English educational discourse
Authors: Яковлева Е.В.
Published: June 2024

Целью настоящего исследования является анализ малоформатных текстов (МФТ), используемых в учебных пособиях “English Unlimited” (Elementary, Intermediate, Advanced), репрезентирующих современный англоязычный образовательный дискурс. Основными методами исследования послужили анализ лингвистической литературы, метод контент анализа, а также качественный сравнительный анализ. Текстовый компонент учебника рассматривается в статье в качестве образовательного дискурса, существующего в контексте академического общения. В работе также рассматриваются особенности малоформатных текстов, осуществляется их систематизация, а также описываются их основные характеристики. Анализ малоформатных текстов учебника “English Unlimited” показал, что они в образовательном дискурсе связаны с деятельностью человека, его чертами характера, профессиональными сферами, знаниями и интеграцией информационных технологий в жизнь человека. В работе также отмечается, что малоформатные тексты, характеризующиеся интертекстуальностью, представляют собой ситуации, рассказы, статьи, диалоги, аннотации, обзоры блогеров и монологи.

The purpose of this study is to analyze small format texts used in the coursebook “English Unlimited” (Elementary, Intermediate, Advanced) that represent modern English-language educational discourse. The main methods of the research were the analysis of linguistic literature, the method of content analysis, as well as the qualitative comparative analysis. The text component in the coursebook is considered in the paper as an educational discourse existing in the context of academic communication. The paper also considers some features of small-format texts, their systematization is carried out, and their main characteristics are described. The analysis of small-format texts of the textbook ‘English Unlimited’ showed that they were related in the educational discourse to human activities, character traits, professional spheres, knowledge and integration of information technologies into human life. The author also finds that small-format texts characterized by intertextuality are situations, stories, articles, dialogues, abstracts, bloggers' reviews and monologues.
Cultivating value attitude to moral standards in adolescent martial arts athletes (by the example of sambo and judo): diagnostic issues
Authors: Береснева М.Л. , Варфоломеева З.С.
Published: June 2024

Авторы рассматривают проблему, актуальность которой возрастает в связи с необходимостью усиления воспитательной и образовательной составляющих в системе детско-юношеского спорта. В статье приведено описание хода и результатов исследования, нацеленного на обоснование, разработку и опытную проверку диагностического обеспечения процесса воспитания ценностного отношения к моральным нормам у спортсменов-единоборцев подросткового возраста. В качестве моральных норм, значимых для спортивной деятельности подростков, выделены моральные нормы «честная игра» и «патриотизм». Установлено, что предложенное диагностическое обеспечение является пригодным для определения ценностного отношения к рассматриваемым моральным нормам у начинающих спортсменов, а уровень его сформированности в группе подростков, занимающихся самбо и дзюдо, является недостаточным.

The authors consider the problem, the relevance of which is increasing due to the need to strengthen the educational components in the system of children's and youth sports. The article describes the course and results of the research aimed at substantiating, developing and testing the diagnostic support for the process of cultivating value attitude to moral standards in adolescent martial arts athletes. The moral standards ‘fair play’ and ‘patriotism’ were identified as moral standards significant for the adolescents' sports activity. It has been established that the proposed diagnostic support is suitable for determining the value attitude to the considered moral standards in beginner athletes, while the level of its formation in the group of adolescents engaged in sambo and judo is insufficient.
Selection of optimal lags and estimation of parameters of a linear regression model with lagging variables
Authors: Носков С.И. , Попов Е.С.
Published: June 2024

В статье дан краткий обзор работ по использованию запаздывающих (лаговых) переменных при моделировании сложных объектов. В частности, рассмотрены: смещение оценки метода наименьших квадратов регрессионной модели с лаговой зависимой переменной и автокоррелированными возмущениями; способ включения запаздывающих переменных в регрессионную модель с использованием пошаговой процедуры; решение проблемы параметрической идентификации в моделях дискретного выбора панельных данных, когда набор объясняющих переменных включает экзогенные переменные, лаги зависимой переменной, а также ненаблюдаемые индивидуальные эффекты. Разработана алгоритмическая схема выбора оптимальных временных лагов для независимых переменных и оценивания неизвестных параметров линейной регрессионной модели с запаздыванием. При выборе в качестве расстояния между векторами фактических и расчетных значений зависимой переменной манхэттенской метрики, соответствующей методу наименьших модулей, данный способ сводится к решению задачи линейно-булевого программирования приемлемой для практических ситуаций размерности. Построена регрессионная модель с запаздыванием для описания динамики количества дорожно-транспортных происшествий, которая обладает меньшими ошибками аппроксимации по сравнению с обычной линейной моделью при использовании методов наименьших квадратов и модулей.

The paper provides a brief overview of works on the use of lagging variables in modeling complex objects. In particular, the following are considered: bias in the least squares estimation of a regression model with a lagged dependent variable and autocorrelated disturbances; a method for including lagged variables in a regression model using a stepwise procedure; solving the problem of parametric identification in discrete choice models of panel data, when the set of explanatory variables includes exogenous variables, lags of the dependent variable, as well as unobserved individual effects. An algorithmic scheme has been developed for selecting optimal time lags for independent variables and estimating unknown parameters of a linear regression model with a lag. When choosing the Manhattan metric corresponding to the method of least moduli as the distance between the vectors of actual and calculated values of the dependent variable, this method is reduced to solving a linear-Boolean programming problem of a dimension acceptable for practical situations. A regression model with lag was developed to describe the dynamics of the number of road accidents, which has smaller approximation errors than the usual linear model when using least squares and moduli methods.
Stilladsering og dannelse. En analyse af introugen på en idrætsefterskole
Authors: Elkrog-Hansen Lise Maria , Skovgaard Thomas , Arvidsen Jan
Published: June 2024

De danske efterskoler tilbyder unge mellem 14 og 18 år undervisning og kostskoleliv med fokus på det hele menneskes udvikling, modning og dannelse. I denne artikel undersøger vi, hvordan og på hvilket pædagogisk grundlag én idrætsefterskole anvender stilladsering i deres pædagogiske praksis i introugen. Dette gøres med afsæt i det pædagogiske begreb stilladsering (Wood et al., 1976). Specifikt ser vi på, hvordan skolens værdigrundlag og pædagogiske koncept samt ledernes og lærernes praksis tilsammen spiller en central rolle i stilladseringen af elevernes første tid på skolen. På den baggrund diskuterer vi, hvordan stilladseringen kan påvirke betingelserne for elevernes dannelse og subjektifikation.
Artiklen er baseret på empirisk materiale fra et etnografisk feltstudie på en stor idrætsefterskole, hvor et flermetodedesign med både deltagerobservation og interview blev gennemført. Analysen viser en stærkt stilladseret pædagogisk praksis, der i særlig grad virker gennem funktionerne reducering af frihedsgrader, retningsfastholdelse og demonstration. Diskussionen peger på, at den konsekvente stilladsering kan begrænse elevernes muligheder for subjektifikation og dannelse, der bør foregå gennem frie, selvvirksomme og ikke-forudbestemte processer.
English abstract
Scaffolding and Formation: An Analysis of the Introductory Week at a Sports-Based Independent Boarding School
Independent boarding schools, known as efterskoler in Denmark, are unique residential educational institutions for students aged 14–18. These schools place emphasis on fostering personal growth, critical self-awareness, and formation (Bildung). This article explores how a particular sports-based independent boarding school integrates national policies pertinent to efterskoler.
We examine the school’s pedagogical approaches, investigating how scaffolding principles impacts students’ formation and personal development. The article is based on empirical data generated through field work using observation and interviews. We employ the concept of scaffolding as our primary analytical lens (Wood et al., 1976).
Our findings show that the school in question adopts a pronounced scaffolded pedagogical approach, particularly utilizing three key mechanisms: reduction in degrees of freedom; direction maintenance and demonstration. Based on this, we discuss how scaffolding can affect the conditions for student’s formation.
In our discussion, we critically assess the school’s consistent use of scaffolded pedagogical practices and how these align with the broader educational principle that the development of students’ formation and subjectification should ideally unfold through free, self-directed, and non-prescriptive processes.
Factores asociados con la satisfacción del estudiantado de bachillerato en un colegio militarizado
Authors: Lozano Treviño David Fernando , Rodríguez Rodríguez Diego Cristóbal
Published: June 2024

Las instituciones escolares que se preocupan por la satisfacción de sus estudiantes procuran fomentar su éxito académico con el fin de retener o aumentar su matrícula. Con base en esta premisa, el objetivo de la presente investigación fue precisar un concepto de satisfacción estudiantil pertinente a la naturaleza de un colegio militarizado —y su incidencia en el éxito educativo—, así como identificar los factores que predicen dicha satisfacción. Para ello, se diseñó estudio exploratorio, el cual se sustentó en una revisión documental de material científico recolectado en repositorios de acceso libre. Los resultados obtenidos permitieron definir la satisfacción del estudiantado en el contexto del estudio y elaborar un modelo teórico compuesto por ocho factores predictores: académicos, docentes, instructores, personales, institucionales, infraestructura, extracurriculares y vinculación. Además, se identificaron las variables de estos constructos independientes que influyen en la satisfacción del alumnado que cursa el bachillerato en la referida institución.
Approaches to Synthesis of High-Frequency Filters of Finite Impulse Response Type
Based on Convolution Algorithm
Authors:   Lviv Polytechnic National
            University, Novosad Oleh , Shcherbovskykh Serhiy ,   Lviv Polytechnic National
            University
Published: June 2024

Digital filters are widely used in audio and video processing, telecommunications,
and other data processing industries. They enable the removal of unwanted components
from signals, improve signal quality, and solve various signal processing tasks. This
article covers the basic principles of digital filtering, including the stages from
design to implementation of a digital filter. The text provides a comprehensive overview
of the filtering process, covering parameterization and analysis of real data at the
filter output. The authors discuss various types of digital filters, such as infinite
impulse response (IIR) and finite impulse response (FIR) filters, each with its own
unique characteristics, advantages, and disadvantages. This information will assist in
selecting the most appropriate filter for a given task. The article discusses the use of
digital filters for signal processing tasks, including noise reduction, in various
real-world scenarios. The language used is clear, concise, and objective, with a formal
register and precise word choice. The article discusses the use of digital filters for
signal processing tasks, including noise reduction, in various real-world scenarios. The
sentences and paragraphs have a logical flow of information with causal connections
between statements. The text is free from grammatical errors, spelling mistakes, and
punctuation errors. It aims to help readers understand the functionality of digital
filters, how to select the appropriate filter for a specific task, and how to use them
to enhance signal quality. The text adheres to conventional academic structure and
formatting, with consistent citation and footnote style. No changes in content have been
made to the original text. It is an important resource for technicians, engineers,
students, and anyone interested in signal processing.
Development of Algorithm and Data Structure for 2D Regions Discrete Model Elements
Accelerated Search
Authors:   Lviv Polytechnic National
            University, Manуuk Oleksandr , Sokolovskyy Yaroslav ,   Lviv Polytechnic National
            University
Published: June 2024

This paper is devoted to improving the search request processing productivity for
planar discrete models used in engineering software. A data structure has been developed
to accelerate the search for discretization elements based on a hierarchical triangular
mesh. The developed indexing structure is built by a downward iterative algorithm, which
constructs each new level of the hierarchy based on the previous level or indexed
triangulation by simplifying it, which ensures that the morphology of the triangulation
mesh is preserved throughout all levels of the hierarchical indexing structure. The
developed building algorithm ensures the presence of tree-like connections between the
levels of the hierarchical triangulation mesh, which allows downward navigation between
geometrically close triangles. Search acceleration is achieved by performing a directed
search in the top level of the indexing structure and then navigating between levels
using downward links until the indexed triangle is found. The program implementation was
carried out using C++17, and visualization of triangulation grids and isolines was
carried out using the ObjectARX library. Based on the software implementation, an
executive library was created.
Design and Realization of Calorify Mobile Application Interface with Augmented
Reality Technology
Authors:   Lviv Polytechnic National
            University, Yurchak Iryna , Oksentyuk Vira ,   Lviv Polytechnic National
            University, Gileta Yuliya ,   Lviv Polytechnic National
            University, Babii Oleg ,   Lviv Polytechnic National
            University, Khich Andrii ,   Lviv Polytechnic National
            University
Published: June 2024

A mobile smartphone is an integral part of the modern world, and not only for
communication, but also for the possibility of using it for many other functions, from
entertainment to security measures. An important components of mobile smartphone
software are mobile applications, the demand for which is growing every year. One of the
directions is mobile applications for maintenance, management, monitoring and support of
a healthy lifestyle. This work is devoted to the development and implementation of the
"fronend" part of the user interface software of the Calorify mobile
application of a hybrid type intended for calorie counting. Despite the large number of
mobile applications for counting calories, there is a need to develop a mobile
application of a hybrid type with more ergonomic design solutions, confirmed by
calculating calories based on analytical mathematical dependencies, with the
implementation of augmented reality technology by scanning products. To realize the set
goal, prototyping was first carried out in the Figma templating environment and the
design of the future Calorify user interface was created. Next, modern UI toolkit
technology was used in conjunction with the UI builder in the Unity engine to implement
Calorify interfaces. UI Builder allows you to visually create and edit user interface
resources, such as user interface documents (.uxml) and style sheets (.uss), used with
the UI Toolkit. In general, the Calorify application consists of registration, user,
main page and bottom menu pages. The scanner is located in the lower menu block, it is
the main function of the Calorify application, which is the main difference and novelty
of the developed mobile application. This button opens the option of taking a photo of
the dish to automatically determine its calorie and nutritional value. This is a quick
and convenient way to get product information the process of scanning products in
Calorify, which implements augmented reality technology. For further development, it is
planned to expand the possibility of registering domains of electronic addresses, to
expand the database and filling of pages.
Advancing Video Search Capabilities: Integrating Feedforward Neural Networks for Efficient Fragment-Based Retrieval
Authors:   Lviv Polytechnic National University, Melnykova Nataliia , Pobereiko Petro ,   Lviv Polytechnic National University
Published: June 2024

In the context of rapidly increasing volumes of video data, the problem of their efficient search and analysis becomes more acute. This research aims to develop and test an innovative system to improve the speed and accuracy of video search, utilizing the capabilities of Deep Convolutional Neural Networks (DCNN) and Feedforward Neural Networks (FFNN). Within the methodology developed for this study, video data are processed through several sequential stages: from feature extraction to key frame identification and the formation of an abstract vector representation. Deep Convolutional Neural Networks are central to the system for image analysis and Feedforward Neural Networks for optimizing the search process. The main results of the study include an increase in video search efficiency by reducing data processing time and increasing the accuracy of identifying relevant fragments. The originality of the work lies in the integration of two types of neural networks for structured analysis of video data, which is a new step in the development of video search technologies. The practical significance of the research is expressed in the possibility of applying the developed system in various areas where fast and accurate video search is needed: from the media industry to security systems. The scope of further research includes adapting the system to specific types of video content and expanding the capabilities of artificial intelligence for a deeper understanding of video data.
Blockhain and Biometrics Challenges and Solutions
Authors:   Lviv Polytechnic National
            University, Khranovskyi Mykola , Kernytskyy Andriy ,   Lviv Polytechnic National
            University
Published: June 2024

Blockchain technology has garnered significant attention in recent years due to
its ability to revolutionize conventional processes by providing faster, more secure,
and cost-effective solutions. This study explores the symbiotic relationship between
blockchain and biometrics, investigating how these technologies can mutually reinforce
each other. The research makes a dual contribution: firstly, it comprehensively analyses
blockchain and biometrics, highlighting their convergence's potential advantages and
obstacles. Secondly, it delves deeper into utilising blockchain for safeguarding
biometric templates. Although the potential benefits outlined earlier are promising,
integrating blockchain and biometric technologies faces challenges due to constraints
within current blockchain technology. These constraints include a limited transaction
processing capacity, the need to store all system transactions leading to increased
storage demands, and insufficiently explored resilience against diverse attacks.
Historically, biometric systems have been vulnerable to both physical and software-based
attacks. While techniques like presentation attack detection can somewhat mitigate
physical sensor vulnerabilities, safeguarding against software attacks necessitates
adopting biometric template protection measures. Despite advancements in this area,
there remains scope for enhancing these methods. Integrating blockchain and biometrics
promises to enhance security and efficiency across various sectors. By combining
blockchain's immutability and transparency with biometric data's uniqueness and
reliability, organizations can establish robust systems that protect sensitive
information while streamlining processes. This research underscores the importance of
understanding the intricacies of merging these technologies to leverage their full
potential effectively. Overall, this study sheds light on the transformative power of
integrating blockchain and biometrics, offering insights into how this synergy can drive
innovation, improve security measures, and optimize operations in a rapidly evolving
digital landscape.
Review and Analysis of Project Management Systems
Authors:   Lviv Polytechnic National
            University, Onysko Erast , Farmaha Ihor ,   Lviv Polytechnic National
            University
Published: June 2024

The article "Overview and Analysis of Project Management Systems"
provides an overview of modern approaches to project management and analyzes popular
software tools for conducting such management. It is discussed the importance of project
management in today's world and its impact on achieving set goals within defined
deadlines and budgets. The article defines project management as a specific activity
aimed at achieving the goals set before the project and highlights its significance for
successful project implementation across various industries. Special emphasis is placed
on the fact that project management has become an important science that combines
knowledge, rules, and standards for achieving success. The article examines the main
differences between projects and everyday activities in organizations and identifies key
characteristics of project management. In particular, it discusses the unique purpose
and limited time frame for achieving this purpose in projects, as well as their
completion after reaching the set goal. It is analysed the three popular project
management systems: Jira, Trello, and Asana. For each of these systems, a brief overview
of their functionality, working principles, and pricing policies is provided.
Specifically, Jira is described as project management software suitable for large
companies, while Trello is considered a tool for controlling work in small companies and
startups, organized according to the kanban principle. Finally, Asana is defined as a
universal task manager for teams or individuals with a large number of projects and
tasks.
Application of CAx Systems for Automated Design of Fire Detectors with an Arduino Board
Authors:   Lviv Polytechnic National University, Oksentyuk Vira , Kolesnyk Kostyantyn ,   Lviv Polytechnic National University, Kushnir Andrii ,   Lviv State University of Life Safety, Kopchak Bohdan ,   Lviv Polytechnic National University
Published: June 2024

This article presents the technology of 3D design of fire detector body parts using the CAx system. During the 3D design of the components of the fire detector, its design has been improved, and its operation is ensured on the basis of the Arduinomini board. The production of the lower cover of the fire detector for the Arduinomini board is realized with the help of a 3D printer. At the same time, a thermal analysis was carried out in the CAx Fusion 360 system of the improved fire detector design.
BENTUK DAUN DAN TINGKAT PRODUKTIVITASNYA PADA KACANG TUNGGAK (Vigna unguiculata L.)
Authors: Muzaiyanah Siti , Trustinah Trustinah , Wungkana Jerry
Published: June 2024

Tingkat produktivitas kacang tunggak ditentukan oleh proses fotosintesis pada daun tanaman dan fotosintat yang dihasilkannya. Sebagai organ tanaman yang utama dan merupakan source, daun menjadi bagian yang paling penting dalam meningkatkan produktivitas tanaman. Kacang tunggak mempunyai macam bentuk daun antara lain: segitiga, trullate sempit, trullate sedang, bulat telur (ovate) dan hastate-lanset Penelitian ini dilakukan untuk mengetahui pengaruh bentuk daun terhadap produktivitas kacang tunggak. Percobaan disusun menggunakan Rancangan Acak Kelompok satu faktor dengan bentuk daun sebagai perlakuan dan diulang sebanyak enam kali.  Bentuk daun yang diuji ada empat macam, yaitu: Bentuk ovate/bulat telur, yang diwakili oleh varietas KT 4, bentuk lanset yang diwakili oleh varietas KT 5, bentuk trullate sempit yang diwakili oleh galur KT5/1716 (F1), dan bentuk trullate lebar yang diwakili oleh galur KT4/KT5 (F1). Tipe bentuk daun kacang tunggak mempengaruhi bobot biji per tanaman. Tipe lanset mempunyai bobot paling tinggi diikuti ovate dan trullate. Bentuk daun tipe trullate cenderung  mempunyai bobot biji lebih rendah dibandingkan bentuk daun ovate dan lanset..
PHOTOSYNTHESIS AND FLOWERING OF DENDROBIUM ORCHIDS AT DIFFERENT LIGHT INTENSITIES
Authors: Farid Noor , Ulinnuha Zulfa
Published: June 2024

Orchid is an ornamental plant with high economic value and prospective to be cultivated. Flower development is influenced by genetic, physiological or environmental factors, such as light intensity, so controlling the flowering environment has considerable potential in influencing the quality of the flowers produced. The purpose of this study was to determine the effect of light intensity from the west and from the east on the flowering and photosynthesis of Dendrobium orchids. This study used a completely randomized block design (RAKL). In this treatment there were 2 treatment factors which were repeated three times. The factor is sunlight with 2 times, namely T1: Morning – Afternoon and T2: Afternoon – Evening. The second factor is Orchid variety (V) V1 : BJS (Burane Jade Snow), V2 : TGUY (Tongchai Gold Uday Yellow), V3 : BJW (Burane Jade White), V4 : CG (Caesar Gold), V5 : PS ( Pure Smiles). The results showed that the number of blooms and the rate of photosynthesis increased in V1, V2, V4, and V5 planted at T1, but decreased in V3 when planted at T1, in V4 there was no difference in photosynthesis at T1 and T2, but the number of flowers blooming decreased at T2.
IDENTIFIKASI KONTAMINASI KULTUR JARINGAN PISANG CAVENDISH
Authors: Sulichantini Ellok Dwi , Nazari Alvera Prihatini Dewi , Nuanyah Achmad
Published: June 2024

ABSTRAK Pisang Cavendish merupakan pisang yang bernilai ekonomi tinggi. Perbanyakan secara kultur jaringan diharapkan dapat membantu penyediaan pisang berkualitas di pasaran. Salah satu penghambat perbanyakan dalam jaringan kultur adalah kontaminasi sehingga pengetahuan tentang teknik sterilisasi dan penyebab kontaminasi perlu dilakukan. Penelitian ditujukan untuk mengetahui penyebab kontaminasi pada jaringan pisang Cavendish. Penelitian merupakan percobaan faktorial 3 x 3, disusun dalam Rancangan Acak Lengkap dengan ulangan lima kali. Sterilisasi sumber eksplan di lapangan dilakukan dengan fungisida dan bakterisida. Sterilisasi di luar laminar menggunakan detergen, sedangkan sterilisasi didalam laminar menggunakan NaOCl dan penambahan perlakuan asam sitrat,-1 . Hasil penelitian menunjukkan perlindungan yang disebabkan oleh jamur dan bakteri. Jenis bakteri yang menyerang adalah Aspergillus sp.,  Colletrichum sp., Rhizoctonia sp. dan Rhizopus sp. Bakteri yang menyerang semua kultur termasuk dalam golongan bakteri gram positif. Kontaminasi terendah ditemukan pada perlakuan asam sitrat 2 mgL -1 .Kata kunci: Asam askorbat, Asam sitrat, Kontaminasi, Kultur jaringan, Pisang Cavendish.
EFEKTIVITAS EKTRAK Biji Annona muricata dan Schleicera oleosa TERHADAP MORTALITAS IMAGO Callosobruchus maculatus Fabrichus
Authors: Bria Fransiska Paskalia , Nenotek Petronella Syahyanti , Kleden Yasintha Letak , Mudita I Wayan , Gandut Yosefina Rofina Yuliaty , Ludji Rika , Nahas Agustina E.
Published: June 2024

Callosobruchus maculatus merupakan salah satu hama pascapenan pada biji kacang hijau. Aktivitas makan dari hama ini menyebabkan menurunnya kualitas dan kuantitas biji kacang hijau. Pengendalian dengan fumigant insektisida nabati dapat menyebabkan residu pada biji kacang hijau dan menghambat perkecambahan biji kacang hijau pada saat tanam. Oleh karena diperlukan teknologi pengendalian yang ramah lingkungan, salah satunya adalah menggunakan insektisida nabati dari biji Annona muricata dan Schleicera oleosa. Kandidat insektisida nabati dari dua tumbuhan asal Pulau Timor belum pernah diuji. Oleh karena itu perlu dilakukan penelitian dengan tujuan untuk mengetahui pengaruh ektrak biji A. muricata dan S. oleosa terhadap mortalitas imago C. maculatus. Penelitian ini dilaksanakan di Laboratorium Hama Tumbuhan. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL). Perlakuan menggunakan metode kontak yaitu residu pada permukaan cawan. Setiap perlakuan terdiri dari lima konsentrasi yaitu 0,06%; 0,125%, 0,25%; 0,5%; 1 %; dan kontrol. Setiap perlakuan diulang tiga kali. Pada setiap ulangan diinfestasi dengan 10 pasang imago C. maculatus. Varieable pengamatan adalah mortalitas dan gejala kematian. Data mortalitas dihitung 24 Jam Setelah Perlakuan (JPS) sampai dengan 72 JPS. Data mortalitas dianalisis menggunakan program POLO PC. Ekstrak biji A. muricata dan S. oleosa menyebabkan kematian imago C. maculatus. Kematian imago C. maculatus yang diberi dengan ekstrak biji sirsak sebesar 96,66% pada konsentrasi tertinggi (1%). Sedangkan pada ekstrak biji kusambi pada konsentrasi yang sama mortalitas sebesar 88,33%. Hasil analisis probit menunjukan bahwa nilai LC50 dan LC95 ekstrak biji sirsak terhadap imago C. maculatus sebesar 0,10% dan 0,81%,sedangkan untuk esktrak biji kusambi LC50 dan LC95 sebesar 0,12% dan 1,50%. Dengan demikian ekstrak biji A. muricata dan S. oleosa asal daerah lahan kering di Pulau Timor memiliki potensi untuk dikembangakan sebagai insektisida nabati
RESPIRASI DAN BIOMASSA KARBON MIKROORGANISME (C-MIK) TANAH AKIBAT SISTEM OLAH TANAH DAN PEMUPUKAN PADA TANAMAN KACANG HIJAU (Vigna radiata L.) MUSIM TANAM KE-8
Authors: Aisah Nuki , Aini Septi Nurul , Dermiyati Dermiyati , Arif M. A. Syamsul , Setiawati Astriana Rahmi , Prasetyo Dedy , Lumbanraja Jamalam
Published: June 2024

Produksi kacang hijau di provinsi Lampung mengalami penurunan. Penurunan produksi kacang hijau ini disebabkan karena tingkat kesuburan tanah yang rendah. Upaya untuk meningkatkan kesuburan tanah yang rendah dilakukan dengan pengolahan tanah dan pemupukan. Tujuan dari penelitian ini adalah mempelajari pengaruh sistem olah tanah dan pemupukan terhadap respirasi dan biomassa karbon mikroorganisme tanah (C-mik). Penelitian ini dirancang dalam Rancangan Acak Kelompok (RAK) yang disusun secara faktorial (2×2) dengan 4 kelompok. Faktor pertama adalah perlakuan sistem olah tanah (T) yaitu T1 = olah tanah minimum, dan T2 = olah tanah intensif. Faktor kedua dalam penelitian ini adalah pemupukan (P) yaitu P0 = tanpa pemupukan dan P1 = Pemupukan kotoran ayam 1.000 kg ha-1 + NPK majemuk (16:16:16) 200 kg ha-1. Pengamatan dilakukan sebanyak 4 kali pengamatan yaitu 0, 7, 30, dan 60 HST (hari setelah tanam). Data yang diperoleh dianalisis dengan analisis ragam pada taraf 5% yang terlebih dahulu diuji homogenitas ragamnya dengan menggunakan Uji Bartlett dan additivitasnya diuji dengan Uji Tukey. Data diuji lanjut menggunakan uji BNT taraf 5 %. Uji korelasi dilakukan untuk mengetahui hubungan antara variabel pendukung dan variabel utama. Hasil penelitian menunjukkan bahwa respirasi tanah lebih tinggi pada perlakuan olah tanah intensif daripada perlakuan olah tanah minimum  pada pengamatan 7 dan 30 HST. Begitu juga biomassa C-mik tanah lebih tinggi pada perlakuan olah tanah intensif daripada perlakuan olah tanah minimum pada pengamatan 30 dan 60 HST.  Perlakuan pemupukan tidak berpengaruh terhadap peningkatan respirasi tanah dan biomassa C-mik. Interaksi perlakuan olah tanah intensif + tanpa pemupukan berpengaruh nyata dalam meningatkan biomassa C-mik pada pengamatan 7 HST. Terdapat korelasi positif antara C-organik dengan respirasi tanah pada pengamatan 30 HST dan pH tanah dengan biomassa C-mik tanah pada pengamatan 0 HST.
PENGARUH OLAH TANAH DAN PEMUPUKAN NITROGEN TERHADAP POPULASI DAN BIOMASSA CACING TANAH PADA PERTANAMAN JAGUNG (Zea mays L.) TAHUN KE-32 DI LAHAN POLINELA BANDAR LAMPUNG, LAMPUNG
Authors: Carolin Anisa , Yusnaini Sri , Utomo Muhajir , Niswati Ainin
Published: June 2024

Di dalam budidaya terdapat dua faktor penting yaitu olah tanah dan pemupukan. Secara umum olah tanah dapat dibedakan atas olah tanah intensif (OTI) dan olah tanah konservasi (OTK). Olah tanah intensif dilakukan dengan cara dicangkul minimal dua kali sedalam 0-20 cm, lalu permukaan tanah diratakan; dan olah tanah konservasi dilakukan dengan olah tanah seminimal mungkin. Pengolahan tanah yang intensif akan menghilangkan sisa tanaman yang dapat berperan sebagai mulsa organik dan sumber bahan organik yang menjadi tempat tumbuh dan berkembangnya biota tanah seperti cacing tanah. Penelitian ini bertujuan untuk mempelajari pengaruh olah tanah dan pemupukan nitrogen serta interaksinya terhadap populasi dan biomassa cacing tanah. olah tanah digunakan tiga olah tanah yaitu olah tanah intensif, olah tanah minimum, dan tanpa olah tanah. Penelitian dilaksanakan di kebun percobaan Politeknik Negeri Lampung pada bulan November 2018 sampai Februari 2019.  Penelitian menggunakan Rancangan Acak Kelompok (RAK), yang disusun secara faktorial 2 x 3 dengan 4 kelompok yaitu faktor pertama perlakuan olah tanah terdiri dari olah tanah intensif (T1), olah tanah minimum (T2), dan tanpa olah tanah (T3) sedangkan faktor kedua aplikasi pemupukan, terdiri dari pemupukan (N2) dan tanpa pemupukan (N0). Data yang diperoleh dianalisis sidik ragam pada taraf 5% yang sebelumnya telah diuji homogenitas ragamnya dengan Uji Barlett dan aditifitasnya dengan Uji Tukey.  Rata-rata nilai tengah diuji dengan uji BNT pada taraf 5%.  Untuk mengetahui hubungan antara C-organik, kadar air tanah, suhu tanah, dan pH tanah dengan populasi dan biomassa cacing tanah yaitu dilakukan uji korelasi.  Hasil penelitian pada kedalaman 0-15 cm, menunjukkan bahwa populasi cacing tanah pada perlakuan tanpa olah tanah lebih tinggi dibandingkan olah tanah intensif dan olah tanah minimum. Pada kedalaman 0-15 cm dan 15-30 cm, biomassa cacing tanah pada perlakuan tanpa olah tanah lebih tinggi dibandingkan olah tanah intensif dan minimum. Terdapat interaksi antara pengolahan tanah dan   pemupukan N terhadap populasi dan biomassa cacing tanah.
RESPON VIABILITAS BENIH KEDELAI (Glycine max L.) VARIETAS DEGA-I TERHADAP BERBAGAI PROPORSI KAPUR TOHOR SELAMA PENYIMPANAN EMPAT BULAN
Authors: Iswara Izzati , Ermawati Ermawati , Ramadiana Sri , Pramono Eko
Published: June 2024

Penyimpanan benih yang tepat untuk mempertahankan mutu benih kedelai selama periode simpan selama mungkin hingga benih kedelai siap ditanam pada periode musim tanam selanjutnya.  Tujuan penelitian ini adalah menentukan proporsi kapur tohor optimum menghasilkan viabilitas benih kedelai tertinggi pascasimpan empat bulan.  Penelitian ini dilakukan pada Juli sampai dengan November 2021 di Laboratorium Benih dan Pemuliaan Tanaman, Fakultas Pertanian, Universitas Lampung.  Penelitian ini menggunakan faktor tunggal yaitu proporsi kapur tohor.  Proporsi bobot kapur tohor per bobot benih 0,0 g (b0); 7,5 g (b1); 15,0 g (b2); 22,5 g (b3); dan 30,0 g (b4) per 100 g benih dalam volume wadah simpan 3.000 ml.  Perlakuan disusun dalam Rancangan Acak Kelompok (RAK) yang terdiri dari lima perlakuan dan lima ulangan sehingga diperoleh 25 satuan percobaan.  Homogenitas ragam perlakuan diuji dengan uji Bartlett dan aditivitas data diuji dengan uji Tukey; jika asumsi anara terpenuhi, pemisahan nilai tengah perlakuan dilanjutkan dengan perbandingan polinomial pada taraf α 5%.  Wadah simpan tersebut disimpan di ruang laboratorium benih selama empat bulan.  Pengamatan suhu dan kelembaban wadah simpan menggunakan hygrometer tipe HTC-1 pada masing-masing perlakuan.  Hasil penelitian ini menunjukkan bahwa proporsi kapur tohor per bobot benih menghasilkan viabilitas benih tidak berbeda selama penyimpanan empat bulan.  Viabilitas benih tinggi pada proporsi kapur tohor per bobot benih didukung dengan viabilitas yang tinggi dengan nilai rata-rata daya berkecambah (DB) 91,16%; potensi tumbuh maksimum (PTM) 98,23%; kecepatan perkecambahan (KP) 23,56%/hari; kecambah normal kuat (KNK) 83,22%; panjang hipokotil (PH) 8,55 cm; bobot kering kecambah normal (BKKN) 36,07 mg serta kadar air (KA) 7,11% dan daya hantar listrik 0,18 mS/cm g rendah.
PENGARUH JENIS MULSA DAN PUPUK TERHADAP PERTUMBUHAN GULMA DAN TANAMAN SERTA PRODUKSI PAKCOY (Brassica rapa Subsp. Chinensis)
Authors: Rahayu Widia Putri , Widyastuti R. A. Diana , Septiana Liska Mutiara , Pujisiswanto Hidayat , Rugayah Rugayah
Published: June 2024

Jenis sayuran yang banyak diminati karena memiliki waktu tanam cukup singkat yaitu Pakcoy (Brassica rapa subsp. Chinensis). Kandungan gizi yang terdapat dalam pakcoy dan bermanfaat bagi kesehatan membuat pakcoy digemari oleh masyarakat. Hal tersebut dapat menjadi peluang bisnis bagi para petani karena pakcoy memiliki permintaan pasar tinggi dan budidaya yang cukup singkat. Kegiatan budidaya yang belum tepat terutama pada iklim mikro dan pemupukan menjadi salah satu penyebab terjadinya penurunan produksi pakcoy. Dalam meningkatkan produktifitas pakcoy dapat dilakukan dengan pengendalian gulma dan memperbaiki iklim mikro melalui aplikasi mulsa organik serta pemupukan melalui aplikasi pupuk. Tujuan dari dilakukannya penelitian ini untuk mengetahui penggunaan jenis mulsa dan pupuk serta interaksi antar keduanya berpengaruh terhadap pertumbuhan gulma dan tanaman serta produksi pakcoy. Penelitian dilaksanakan pada bulan Januari-April 2023 di Laboratorium Lapang Terpadu (LTPD), Universitas Lampung. Penelitian ini dirancang dalam Rancangan Acak Kelompok (RAK) faktorial yang terdiri dari dua faktor yaitu pemberian mulsa (B0, B1, B2) dan pemberian pupuk (P0, P1, P2) dan diulang sebanyak sebanyak tiga kali dengan total sebanyak 27 satuan percobaan. Data hasil penelitian dilakukan uji homogenitas yang diuji dengan uji Barlett dan uji Aditivitas data dengan dilakukan uji Tukey. Bila asumsi terpenuhi, data dianalisis dengan analisis ragam dan uji Beda Nyata Terkecil (BNT) 5%. Hasil penelitian menunjukkan bahwa penggunaan jenis mulsa alang-alang pada 4 MST dan interaksi mulsa alang-alang dengan pupuk kandang ayam pada 6 MST mampu menekan pertumbuhan gulma. Sedangkan, penggunaan kombinasi pupuk urea dengan pupuk kandang ayam meningkatkan produksi bobot segar tanaman. Sementara itu, jenis gulma yang mendominasi dalam penggunaan jenis mulsa dan jenis pupuk yaitu Cleome rutidosperma, Cyperus kyllingia, Euphorbia hirta, dan. Richardia scabra.
The Effect of H2SO4 Variations on the Synthesis and Characterization of Nanocellulose Using Pineapple Peel Fiber
Authors:   Department of Physics, University of Lampung, Bandar Lampung, Indonesia, Sitohang Rosanti
Published: June 2024

Manufacturing nanocellulose made from pineapple peel fiber has been carried out using acid hydrolysis. This study aims to determine the effect of variations in H2SO4 on the synthesis of nanocellulose in pineapple peel fibers and on the crystal structure, surface morphology, and constituent elements of pineapple skin fiber nanocellulose. The variations of H2SO4 used were 5, 10, 15 and 20%. X-ray diffraction (XRD) and Scanning Electron microscopy (SEM) are characterizations used. The results of XRD characterization showed that the size of the resulting crystallite had met the appropriate size in the range of values from 2.03 – 2.21 nm. The results of SEM characterization show that the image is not porous and lumpy.