bluuebunny/crossref_metadata_2025 huggingface dataset:
Sequência Didática sobre Energia no Estágio Supervisionado em Ensino de Física: desafios e possibilidades no contexto do novo Ensino Médio
Authors: De Moraes Becker Daniel , Javarez de Oliveira Daniele , Vidmar Muryel Pyetro
Published: May 2023

O novo Ensino Médio é balizado em documentos normativos vigentes desde o ano de 2018, os quais, a partir de 2022, a totalidade das escolas de educação básica devem considerar, que são a Base Nacional Comum Curricular, no âmbito nacional, e o Referencial Curricular Gaúcho, no contexto específico das escolas do Rio Grande do Sul. De forma coerente com as discussões e perspectivas contidas nos referidos documentos, o presente artigo visa a apresentar uma sequência didática sobre Energia, elaborada no contexto do Estágio Supervisionado em Ensino de Física (ESEF), bem como discutir as possibilidades da mesma para o Ensino de Física/Ciências da Natureza e suas Tecnologias. Nesta linha, os planejamentos das aulas foram construídos com a abordagem temática, a partir do tema “Energia e Humanidade”; ainda, foram estruturados com base nas metodologias ativas denominadas Três Momentos Pedagógicos e Ensino sob Medida. Considerando os desafios do novo Ensino Médio, atrelados àqueles específicos do ESEF, argumenta-se que esta sequência didática constitui possibilidade concreta de desenvolver objetivos mais amplos, atrelados à concepção de conteúdo que, para além dos conceitos, enfatiza procedimentos e atitudes na formação dos educandos.
THE IMPACT OF STANDARD COSTING ON THE PROFITABILITY OF LISTED CONSUMER GOODS FIRMS IN NIGERIA
Authors: Emmanuel Babatunde OYEDELE  , Lateef Olumide MUSTAPHA  , Samuel Eniola AGBI
Published: May 2023

This study aimed to determine to what extent standard costing improves the profitability of consumer goods companies in Nigeria. This was achieved by investigating and analysing the relationship between the cost of raw materials, the cost of labour, and the cost of manufacturing overhead on the profit after tax of listed consumer goods firms in Nigeria. Data availability has led to the selection of fifteen (15) consumer goods companies retrieved from the financial statements of these firms. Secondary data have been collected over a ten (10) years period, from 2012 to 2021. Panel estimation methods (pooled OLS, fixed effect estimation, and random effect) and a post estimation test were used to examine the compiled data. The results showed that profitability of firms in the consumer goods industry in Nigeria was significantly correlated with its manufacturing overhead costs, but negatively correlated with its raw material costs and labour cost. The research indicated that cautious consideration of raw material costs and the maintenance of effective standard costing across all labour costs were essential to attain the desired results
KEYWORDS: Standard cost, raw material cost, labour cost, manufacturing overhead, Profit after tax, consumer goods firms in Nigeria.
Strategi Aliansi Bank Nagari dalam Menghadapi Disrupsi Teknologi Fintech
Authors: Mayasari Anggi Puspita , Pujani Vera , Hamidi Masyhuri
Published: May 2023

The purpose of this study was to determine Bank Nagari's leading business segment, the type of Fintech and the collaboration model most suitable for Bank Nagari. This type of research is a case study with a descriptive qualitative approach. Research respondents are strategists or decision makers at Bank Nagari. This study uses primary data obtained from respondents' answers in the form of filling out questionnaires and interviews, namely data obtained directly from the object of research. The data analysis technique uses the Quantitative Strategic Planning Matrix (QSPM) to select alternative strategies which include Internal Factor Evaluation (IFE) matrix analysis, External Factor Evaluation (EFE) matrix analysis, weighting, rating determination and multiplication of weights with ratings. The results showed that the value of selecting the bank's business segments, namely MSME and Commercial, was the most attractive alternative strategy or had the highest average TAS score of the other alternative strategies (5.784), the value of choosing the type of Fintech P2P Lending was the most attractive alternative strategy or had a total score The highest average TAS of the other strategic alternatives (5.310), the value of selecting the Channeling as collaboration model is the most attractive strategic alternative or has the highest average Total TAS score of the other strategic alternatives (5.199).
Identification of muscle movements and activity by experimental methods for selected cases – stage #2
Authors: Dejneka Aleksandra , Małachowski Jerzy , Mazurkiewicz Łukasz
Published: May 2023

Purpose: The aim of the performed tests and static measurements was to determine the torque and to determine the activity curve for individual muscle heads during the flexion-extension movement in the elbow joint. Methods: Both heads of the biceps branchial muscle and the triceps muscle of the arm – long head and lateral head – were examined. Static measurements were carried out for four selected positions of the upper limb. For each pose, a measurement series consisting of five attempts of ten seconds of effort was performed. Isometric contraction was performed as 100% of the maximum voluntary MVC contraction. Dynamic measurements were carried out when working in isokinetic conditions. In both stages, an EMG and a Biodex isokinetic dynamometer were used. Results: During the analyses, it was assumed that the average value of the torque is equal to the approximate value of the torque of a given head under static conditions. The value of the torque of the biceps brachial muscle, long head was 48.04 Nm and for the short head – 45.82 Nm. For the triceps muscle of the long head, this value was 52.52 Nm and for the lateral head – 38.06 Nm. On the basis of dynamic measurements, four activation curves were determined for each of the heads during the 7-second task. For the curves, the sum value of muscle activity in a given period of time was calculated as the area under the curve. Conclusions: Both parts of the series of articles present a series of experimental studies conducted in order to determine the parameters for one patient, for whom a personalized numerical model of the upper limb was ultimately created. Static measurements were carried out to determine the maximum values of the moments of forces. Dynamic measurements allowed for the determination of activity curves during the movement of the upper limb.
Effect of foot pronation during distance running on the lower limb impact acceleration and dynamic stability
Authors: Liangliang Xiang  , Yaodong Gu  , Wang Alan , Qichang Mei  , Peimin Yu  , Shim Vickie , Fernandez Justin
Published: May 2023

Purpose: Foot pronation is not an isolated factor influencing lower limb functions. Exploring gait variability and impact loading associated with the foot posture are crucial for understanding foot pronation-related injury mechanisms. This study aimed to evaluate how foot posture affects impact loading and running variability during running. Methods: Twenty-five male participants were recruited into this study. Pressure under the foot arch, acceleration and marker trajectory were recorded in the right limb for each runner after 1, 4, 7 and 10 km running, respectively. Linear mixed effects models were used to analyze the statistical difference of the data. Results: FPI-6 has significantly increased after the 10 km running (p < 0.01). For the tibial acceleration, peak resultant acceleration after 10 km running was significantly increased than after 4 km running (p = 0.02). At the dorsum of the foot, the short-time largest Lyapunov exponent (LyE) after 10 km running decreased 0.28 bit/s compared with LyE after 7 km running (p = 0.03). In the tibia, LyE after 4 km and 10 km running was decreased significantly (p < 0.01 and p = 0.01). Conclusions: The foot was significantly pronated at the middle and at the end of running. Foot pronation during distance running increased the distal tibia peak impact acceleration but did not increase running instability
The effect of three run-up techniques on kinetic and kinematic variables of the stag ring leap with throw-catch of the ball in rhythmic gymnastics
Authors: Akkari-Ghazouani Hounaida , Amara Samiha , Chtara Mokhtar , Mkaouer Bessem
Published: May 2023

Purpose: The aim of this study was to compare the effect of three run-up steps on the kinetic and kinematic variables of the stag ring leap, with throw-catch of the ball, in high-level rhythmic female gymnasts. The three run-up steps used are a chassé step, glissade, and assemblé. Methods: Seven high-level rhythmic female gymnasts participated in this study. Three run-up steps (i.e., chassé step, glissade and assemblé) were used randomly to perform a stag ring leap with throwing a ball on the jump take-off. 2D kinetic and kinematic analysis was conducted. Results: The results indicated that the assemblé step used in the run-up technique generated greater values of the rate of force development, the highest values of vertical velocity, and the best vertical displacement. In addition, the assemblé step allows for the best opening angle of the split leap and the best closest angle of the ring leg. The same was noted for the front leg’s angular velocity. Conclusion: We concluded that the assemblé step used in the run-up technique appears to favor a greater stag ring leap that meets the Code of Points’ condition for admitting the jump, as well as numerous studies that focus on improving jumping abilities in rhythmic gymnastics.
Human Rights and Mega-Events: A Systematic Literature Review
Authors: Tang Zhiqi , Wu Chi Wai , Cheng Wan Lok Alan
Published: May 2023

This study aims to conduct a systematic review on human rights as related to mega-events (MEs) to locate possible key areas and gaps for further research in the field. A systematic literature review has been undertaken utilizing the databases of Scopus, Web of Sciences, and Google Scholar.
A final sample of 127 articles was used for this review exercise. Findings resulted in past research studies classified into six groups and 18 topics for recommending for future research. The findings contribute to theory by identifying and underlining the key areas and research gaps for orientating
further studies such as discovering some new phenomena that may elicit relevant research interests. The findings also contribute practically by urging the relevant policy and practice actors to actively seek out the stakeholders entailed in a mega event to minimize its possible adverse effects
on the stakeholders.
Increasing Public Knowledge About Sedentary Activities Through Counseling at SMPIT Zain Al-Muttaqin, Palembang, Indonesia
Authors: Mariana  , Dwi Handayani  , Muhammad Aziz  , Agita Diora Fitri  , Riafatiulfi Ilyasa  , Nabila Istighfarin
Published: May 2023

Background: Sedentary activities are activities that require very low energy expenditure, such as sitting or lying down while watching television, playing electronic games, and reading which can have negative health effects. This study aimed to describe the comparison of participants' knowledge before and after counseling about sedentary activities.

Methods: An experimental study with one group pre-test and post-test design was conducted on 22 students of SMPIT Zain Al-Muttaqin Palembang. Data were analyzed using the Wilcoxon test.

Results: There were 63.6% of participants' knowledge was in the poor category before counseling, and after counseling, the participant's knowledge increased by 59.1% in the good category. From the Wilcoxon test analysis, the result is the value of Sig. (2-tailed) of 0.000 < 0.05.

Conclusion: Student knowledge is increased about activities sedentary after counseling, and there is a significant difference in the results of sedentary lifestyle counseling based on data pre-test and post-test (P<0,05).
STUDI KEPUASAN MAHASISWA TERHADAP PELAYANAN AKADEMIK PADA JURUSAN ILMU PENDIDIKAN FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS PALANGKA RAYA
Authors: EKLESIA RIANITA VIONA , Winaryo Slamet , Dagai L. Limin
Published: May 2023

Penelitian ini bertujuan untuk mengetahui tentang kepuasan mahasiswa terhadap pelayanan akademik yang dilakukan pada Jurusan Ilmu Pendidikan Fakultas Keguruan dan Ilmu Pendidikan Universitas Palangka Raya. Populasi dalam penelitian ini adalah mahasiswa Jurusan Ilmu Pendidikan Program Studi Pendidikan BK, Manajemen Pendidikan, Teknologi Pendidikan dan PGSD yang berdasarkan Data Rekapitulasi Semester Ganjil 2020/2021 di Jurusan Ilmu Pendidikan FKIP Universitas Palangka Raya yang jumlahnya sebanyak 1.227 orang. Untuk pengambilan sampel penelitian, peneliti menggunakan teknik Proposional Sampling maka sampel penelitian adalah sebanyak 101 orang. Teknik pengumpulan data dalam penelitian ini menggunakan angket (kuisioner). Dalam menganalisis data penelitian ini menggunakan metode deskriptif, juga menggunakan aplikasi statistik SPSS for window atau perhitungan manual.

Dari hasil penelitian dapat disimpulkan bahwa kepuasan mahasiswa terhadap pelayanan akademik pada Jurusan Ilmu Pendidikan FKIP UPR positif dan signifikan, dibuktikan dengan uji menggunakan kolerasi Product Moment karena rxy Hitung  adalah sebesar  0,988 lebih besar dari rxy Tabel pada taraf significance 5 %  dan df = 99 sebesar  0,205 berarti  Ho yang ditolak, berarti : Ha yang diterima : Berarti ada kepuasan mahasiswa terhadap pelayanan akademik di Jurusan Ilmu Pendidikan Fakultas Keguruan & Ilmu Pendidikan Universitas Palangka Raya. Dengan demikian dapat disimpulkan, bahwa para mahasiswa merasa puas dengan pelayanan yang sangat baik dari akademik di Jurusan Ilmu Pendidikan Fakultas Keguruan & Ilmu Pendidikan Universitas Palangka Raya, jadi kepuasan mahasiswa yang tinggi sangat tergantung oleh pelayanan yang baik, dalam hal ini tingkat keterangan kepuasan mahasiswa tersebut sebesar 98,80% adalah berada pada tingkat kolerasi yang sangat kuat (sangat tinggi).
PERLINDUNGAN KONSUMEN TERHADAP IKLAN YANG MENYESATKAN DARI PERSPEKTIF HUKUM PERDATA DAN KODE ETIK PERIKLANAN INDONESIA
Authors: Firman  , Ali Sunarno  , Asep Ikbal
Published: May 2023

Adanya iklan menyesatkan yang tidak sesuai dengan kebenarannya berakibat pada hak dari konsumen yang dirugikan, sehingga menimbulkan permasalahan antara pihak konsumen dengan pihak pelaku usaha dan pihak yang mengiklankan produk tersebut. Sehingga yang menjadi fokus dalam penelitian ini adalah menentukan standarisasi penentuan informasi iklan yang menyesatkan, bentuk perlindungan hukum perdata dan kode etik periklanan Indonesia, serta tanggung jawab perusahaan pemasang iklan menyesatkan yang telah melakukan perbuatan melawan hukum. Penelitian ini menggunakan metode yuridis normatif, mengkaji dengan menggunakan pendekatan peraturan per’undang-undangan dan pendapat para ahli hukum sebagai dasar dalam penulisan penelitian.

Berdasarkan hasil penelitian yang telah dilakukan dapat disimpulkan bahwa dengan adanya Undang-Undang Nomor 8 Tahun 1999 Tentang Perlindungan Konsumen dan Kode Etik Periklanan di Indonesia dapat menentukan apakah iklan itu menyesatkan atau tidak sesuai dengan tindakan kecurangan, ada unsur berbohong, dan ada unsur perbuatan mengelabui sesuai dengan ketentuan yang ada, serta terdapat perlindungan hukum bagi konsumen yang dirugikan oleh pelaku usaha atas iklan yang menyesatkan dari kecurangan pelaku usaha dan pihak pengiklan  yang mendapatkan keuntungan. Serta pelaku usaha periklanan harus bertanggung jawab dengan akibat dari iklan yang menyesatkan sesuai dengan Pasal 1365 KUH Perdata dan Pasal 20 Undang-Undang Nomor 8 Tahun 1999 Tentang Perlindungan Konsumen.
Bootstrap Confidence Intervals for the Parameter of the Poisson-Prakaamy Distribution with Their Applications
Authors: Panichkitkosolkul Wararit
Published: May 2023

Poisson-Prakaamy distribution has been proposed for count data, which is of primary interest in several fields, such as biological science, medical science, demography, ecology, and genetics. However, estimating the bootstrap confidence intervals for its parameter has not yet been examined. In this study, bootstrap confidence interval estimation based on the percentile, basic, biased-corrected, and accelerated bootstrap methods were examined in terms of their coverage probabilities and average lengths via Monte Carlo simulation. The results indicate that attaining the nominal confidence level using the bootstrap confidence intervals was not possible for small sample sizes regardless of the other settings. Moreover, when the sample size was large, the performances of the bootstrap confidence intervals were not substantially different. Overall, the bias-corrected and accelerated bootstrap confidence interval outperformed the others for all of the cases studied. Lastly, the efficacies of the bootstrap confidence intervals were illustrated by applying them to two real data sets, the results of which match those from the simulation study.
“Wir leben Logistik nachhaltig“
Authors: Müller-Wondorf Rolf
Published: May 2023

Nach drei Jahren Pause konnte am 23.+24. März 2023 der Deutsche Materialflusskongress endlich wieder als Präsenzveranstaltung in Garching stattfinden. Zum 30-jährigen Jubiläum haben sich die Veranstalter – VDI-Gesellschaft für Produktion und Logistik und der Lehrstuhl Fördertechnik Materialfluss Logistik (fml) der Technischen Universität München – über mehr als 250 angemeldete Teilnehmer gefreut.
Mit Qubits schneller ans Ziel
Authors: Walz Maximilian
Published: May 2023

Die beste Lieferroute aus endlos vielen Möglichkeiten errechnen, Flugzeuge mit optimaler Gewichtsverteilung beladen, Sendungen im Paketzentrum vorausschauend sortieren – das alles werden Quantencomputer möglich machen. Innerhalb von Minuten lösen sie komplexe Aufgaben, für die sogar Superrechner mehrere tausend Jahre brauchen würden. Das wird die Logistik künftig maßgeblich verändern. Daher sollten Unternehmen schon jetzt ausloten, wie sie Quantencomputing am besten für sich nutzen können.
Viele Herausforderungen – eine Verpackungslösung
Authors: Krahé Jürgen
Published: May 2023

Unternehmen müssen die Art und Weise, wie sie Waren lagern und transportieren, überdenken und in vielen Fällen grundlegend anpassen. Denn: Laut Klimaschutzgesetz der Bundesregierung sollen die CO2-Emissionen bis 2030 um 65 Prozent gegenüber dem Referenzjahr 1990 sinken; bis 2045 will Deutschland klimaneutral werden. Ein wesentlicher Baustein zur Erreichung der Nachhaltigkeitsziele ist Green Packaging, also nachhaltiges Verpacken. Gerade die Lebensmittel- und Getränkeindustrie hat hohe Anforderungen an die Transportverpackung: Widerstandsfähigkeit, hygienische Eigenschaften und gleichzeitig umfassender Produktschutz. Mit Kunststoffpaletten als ökologische und gleichzeitig ökonomische Lösung kann das funktionieren.
Pendampingan Bimbingan Belajar bagi Siswa Kelas V Sekolah Dasar Negeri Cibogo
Authors: Aliyyah Rusi Rusmiati , Prasetyo Teguh , Brawijaya Andri , Firdaus Siti , Futri Awalia
Published: May 2023

Membaca dan berhitung merupakan keterampilan dasar yang harus dimiliki setiap orang dan menjadi kebutuhan mendesak dimana segala sesuatu dalam hidup melibatkan kegiatan membaca. Dengan membaca dan berhitung, manusia dapat menemukan informasi yang mereka butuhkan. Salah satu kendala di SD Negeri Cibogo adalah sebelas siswa kelas V mengalami kesulitan membaca, membedakan huruf, mengeja, dan mengenal angka dalam satuan, puluhan, ratusan, dan ribuan. Oleh karena itu, tim pengabdian masyarakat membuat program bimbingan belajar untuk membantu siswa meningkatkan keterampilan membaca dan berhitung. Program bimbingan belajar dilaksanakan di SDN Cibogo yang terletak di Desa Tugu Jaya, Kecamatan Cigombong, Kabupaten Bogor, Provinsi Jawa Barat. Pelaksanaan bimbingan belajar akan dilaksanakan pada tanggal 25 Juli sampai dengan 08 Agustus 2022. Hasil dari program bimbingan belajar ini adalah peningkatan kemampuan membaca dan berhitung bagi yang belum mengenal huruf dan angka. Setelah mengikuti program ini, siswa dapat mengenal dan lancar membaca dan berhitung. Selain kelebihan program bimbingan belajar pada keterampilan membaca dan berhitung, ada juga hambatan bimbingan belajar yang dibahas dalam artikel ini.
ADDITIONAL FUNCTIONS OF AUTONOMOUS ALARM DEVICES
Authors: Здор В.Л. , Порошин А.А. , Семененко Н.В. , Сурков С.А.
Published: May 2023

Предметом статьи являются автономные дымовые извещатели, представляющие собой точечные дымовые пожарные извещатели, в корпусе которых конструктивно объединены компоненты, необходимые для обнаружения пожара и звукового и/или речевого оповещения о нем. Автономные пожарные извещатели предназначены для максимально оперативного оповещения находящихся в помещении людей о возникновении задымления, образующегося на начальной стадии развития пожара. Областью применения автономных извещателей являются жилые помещения квартир, гостиниц, общежитий. Некоторые технические требования к извещателям пожарным дымовым автономным приведены в национальном стандарте ГОСТ Р 53325-2012 «Техника пожарная. Технические средства пожарной автоматики. Общие технические требования и методы испытаний» и межгосударственном стандарте ГОСТ 34698-2020 «Извещатели пожарные. Общие технические требования. Методы испытаний», но их номенклатура является весьма ограниченной и недостаточной для регламентирования наиболее значимых качественных и количественных требований к извещателям пожарным дымовым автономным. В международной практике и в странах Европы требования к извещателям пожарным дымовым автономным в необходимом объеме изложены в отдельных стандартах ISO 12239 «Smoke alarms using scattered light, transmitted light orionization» и EN 14604 «Smoke alarm devices». В статье рассмотрены дополнительные, в том числе рекомендуемые, требования, предъявляемые к автономным извещателям, и отсутствующие в действующих в Российской Федерации нормативных документах.

The subject of the article is autonomous smoke alarm devices which are point smoke alarm devices. The components necessary for fire detection and technical means for sound and/or voice fire warning are installed in the body of point smoke alarm devices. Autonomous alarm devices are designed for prompt notification of people in premise about the occurrence of smoke generated at the initial stage of fire growth. The scope of application of autonomous alarm devices are residential premises of apartments, hotels, dormitories. Some technical requirements for smoke alarm devices are given in the national standard GOST R 53325-2012 “Fire techniques. Means of fire automatics. General technical requirements and test methods” and the interstate standard GOST 34698-2020 “Fire detectors. General technical requirements. Test methods”. But the nomenclature of these standards is very limited and insufficient to regulate the most significant qualitative and quantitative requirements for autonomous smoke alarm devices. In international practice and in European countries, the requirements for smoke alarm devices are set out in separate standards ISO 12239 «Smoke alarms using scattered light, transmitted light or ionization» and EN 14604 «Smoke alarm devices». The article considers additional requirements, including recommended requirements for smoke alarm devices that are absent in the valid regulatory documents of the Russian Federation.
INFLUENCE OF WORKING CONDITIONS ON PSYCHOSOMATIC HEALTH OF EMPLOYEES OF EMERCOM OF RUSSIA
Authors: Маторина О.С. , Илларионова Н.М. , Рюмина С.И. , Стрельцов О.В.
Published: May 2023

Авторы рассматриваютосновные факторы, связанные с условиями профессиональной деятельности сотрудников МЧС России, оказывающие неблагоприятное влияние на состояние психосоматического здоровья сотрудников. Приводятся мнения авторов по вопросу оценки нарушений состояния здоровья сотрудников МЧС России. Осуществлен анализ подходов к оценке функционального состояния организма, а также приведены статистические данные и выводы.

The authors review the main factors related to the conditions of professional activity of employees of EMERCOM of Russia negatively affected on psychosomatic health of employees. The authors’ opinion on the assessment of health disorders of employees of EMERCOM of Russia is considered. There are presented the analysis of approaches to assess the functional state of the body. Statistical data and conclusions are cited.
Diskresi Kebijakan Alokasi Dana Desa Di Era Pandemi (Studi Pada Desa Belatung Kecamatan Lubuk Batang Kabupaten Ogan Komering Ulu)
Authors: Plando Plando , Djakfar Yunizir , Saleh Rakhmat
Published: May 2023

Terjaminnya penyelenggaraan pelayanan publik yang maksimal dan terjaminnya kesejahteraan masyarakat, pemerintah memiliki suatu kebebasan tertentu untuk melakukan tindakan didasarkan atas penilaian tersendiri dalam mengatasi berbagai kondisi-kondisi yang memerlukan penanganan yang cepat dan tepat. Penelitian ini bertujuan untuk melihat bagaimana mengetahui diskresi yang ada dalam kebijakan alokasi dana desa di era pandemi covid di Desa Belatung Kecamatan Lubuk Batang Kabupaten Ogan Komering Ulu. Penelitian ini menggunakan metode penelitian deskripsi kualitatif yang dilakukan dengan memaparkan permasalahan pada objek penelitian yang digali secara mendalam. Penerapan Praktek diskresi pegawai pada Street Level Bureaucracy dinilai masih masih kurang inisiatif. aparat desa dalam merespon kesulitan pelayanan yang dihadapi memilih tindakan dengan meminta petunjuk pimpinan atau menunda pelayanan sampai pimpinan datang, aparat lebih banyak memberikan pelayanan kepada publik didasarkan pada aturan baku atau formal dan hanya sebagian kecil aparat yang menyesuaikan situasi dengan pelayanan yang ada.
Preliminary reactor design for gold nanoparticle production by the Turkevich method on an industrial scale
Authors: Erlangga Thyta Medina Salsabila , Nandiyanto Asep Bayu Dani , Ragadhita Risti
Published: May 2023

This study aims to design and analyze the design of a batch-type reactor to optimize the production of gold nanoparticles on an industrial scale. The method used in the design of this reactor is the computational analysis of the reactor calculations, including stirring and mass balance as initial calculations using the Microsoft Excel application manually. The calculation results show that the designed reactor specifications have a reactor volume of 21.7335 ft3, cylinder height of 13.4612 in, a height of solution in the cylinder of 8.9046 in, vessel diameter of 73.2984 in, design pressure of 9.9978 psig, impeller length of 9.1840 in, shaft length of 10.5418 in, with stirring power 62.5228 Hp. Reactor design analysis is an important stage in the design of production processes on an industrial scale, where the specification results from the designed reactor can be used not only to adjust the reactor to the product but also to be used as a reference for production costs. The results of computational analysis and calculations performed on the reactor design in this study can be used as a reference and can be applied in the design of reactor performance analysis as a learning media, including operating mechanisms in the production process.
Sustainable construction strategies for building construction projects in the Kingdom of Bahrain: a model
Authors: Nebrida Jimmy , Gomba Felisa E.
Published: May 2023

Sustainability is defined as meeting the demands of the present without compromising the ability of future generations to meet their own needs. This study focuses on the sustainable construction strategies used in the Kingdom of Bahrain in terms of sustainable construction technologies and management strategy linked to the environment and the significant relationship between the management strategy and construction technologies used for sustainable building construction. This study employed the descriptive-correlational method of research using a questionnaire for gathering data about the sustainable construction strategies used in Bahrain. The data gathered were analyzed using the weighted mean and Pearson’s correlation coefficient to determine the degree of correlation between construction technologies and management strategy. SPSS software was used in the calculation.
Results show that management strategy linked to the environment is often practiced in around 75% of all projects delivered while general sustainable construction methods, energy and material-based techniques, and waste-based techniques are sometimes utilized in around 50% of all the building projects delivered. In addition, the utilization of these sustainable construction technologies is the result of a management strategy linked to the environment which the respondents rated as often practiced for all projects that were delivered. This implies that management strategy in protecting the environment in Bahrain is often practiced in construction for 75% of the projects.
From the results of the study, a model of sustainable building construction in the Kingdom of Bahrain was derived to achieve sustainable building construction. This includes the management strategies needed by the different stakeholders like construction firms and government agencies to carry out the implementation of sustainable construction and sustainable construction techniques (e.g., waste management, insulating materials, building envelope with thermal properties, building management system, and efficient fixtures).
Ergenlik Dönemindeki Bireylerin Çocukluk Çağı Travmalari İle Öznel İyi Oluşları Arasındaki İlişki
Authors: KARAL Eser
Published: May 2023

Yaşam evreleri içerisinde oldukça kritik olan ergenlik dönemi, bireylerin yoğun değişim yaşadığı süreçlerden biridir. Bu dönemde yaşanılan fizyolojik gelişime, psikolojik değişimler de eşlik etmektedir. Bireylerin çocukluk çağında yaşamış oldukları ruhsal travmaların yansıması ergenlik döneminde de kendisini gösterebilmekte, iyi oluşlarını etkileyebilmektedir. Bu araştırmada temel amaç, ergenlik dönemindeki bireylerin çocukluk çağı travmaları ile öznel iyi oluşları arasındaki ilişkiyi incelemektir. Ayrıca katılımcıların travmayı inkâr durumlarına, demografik özelliklerine göre öznel iyi oluşun farklılaşıp farklılaşmadığı incelenmiştir. Çalışma grubunun uygun örnekleme yöntemi ile belirlendiği bu araştırmada, ilişkisel tarama modeli kullanılmıştır. Araştırmanın örneklemini, 2021-2022 eğitim öğretim yılında lise eğitimlerine devam eden ergenlik dönemindeki 649 gönüllü kişi oluşturmaktadır. Araştırmada veri toplama araçları olarak Kişisel Bilgi Formu, Bernstein ve arkadaşları (1994) tarafından geliştirilen ve Şar, Öztürk ve İkikardeş (2012) tarafından geçerlik ve güvenirlik çalışmaları yapılan Çocukluk Çağı Travmaları Ölçeği ile Eryılmaz (2009) tarafından geliştirilen Ergen Öznel İyi Oluş Ölçeği kullanılmıştır. Veriler analiz edilirken, betimsel istatistiklerden, ilişkisiz örneklemler için t-Testinden ve tek yönlü varyans analizinden (ANOVA) yararlanılmıştır. Araştırmanın sonuçlarına bakıldığında katılımcıların öznel iyi oluş puanlarının travmayı inkâr etme durumuna göre anlamlı düzeyde farklılaştığı görülmektedir. Ayrıca araştırmada katılımcıların çocukluk çağı travmaları ile öznel iyi oluşları arasında orta düzeyde negatif yönlü anlamlı bir ilişki bulunmuştur. Katılımcıların öznel iyi oluşlarının cinsiyete ve sosyo-ekonomik duruma göre anlamlı düzeyde farklılaşmadığı sonucuna ulaşılmıştır. Araştırmada elde edilen bulgular ilgili alan yazın ışığında tartışılarak öneriler sunulmuştur.
Pengembangan Media Pembelajaran Powerpoint Interaktif Berbasis Inkuiri Terbimbing pada Materi Larutan Penyangga
Authors: Dewi Riska Septia , Aini Syamsi
Published: May 2023

Menurut kurikulum 2013 materi pelajaran kimia diberikan oleh guru mengunakan pendekatan saintifik, dan berdasarkan sifat materi pelajaran kimia bersifat mutiple representasi. Sehingga tidak bias diajarkan hanya mengunakan buku cetak. Salah satu media pembelajaran yang dapat menampilkan tiga level representasi kimia dan dapat mengunakan pendekatan saintifik adalah media Powerpoint interaktif. Jenis  penelitian  yang  dilakukan  adalah  pengembangan dengan  model  4-D  (define,  design,  develop  dan  diseminate). Media pembelajaran yang dihasilkan Powerpoint interaktif berbasis inkuiri terbimbing yang menyajikan model dalam tiga level representasi kimia. Berdasarkan hasil analisis data validitas diperoleh rata -rata momen kappa sebesar 0,81 dengan kategori kevalidan Tinggi dan hasil data praktikalitas diperoleh  rata-rata  momen  kappa  sebesar  0,84  oleh  guru  dan  0,88 oleh  siswa dengan kategori kepraktisan sangat tinggi.
Pengembangan Media Pembelajaran Powerpoint Interaktif Berbasis Inkuiri Terbimbing pada Materi Ikatan Kimia Kelas X SMA/MA
Authors: Febriani Sari Safitri , Aini Syamsi
Published: May 2023

Penelitian ini bertujuan untuk mengembangkan media pembelajaran interaktif powerpoint berbasis inkuiri terbimbing pada materi ikatan kimia dan mengungkapkan kevaliditas dan kepraktikalitasnya sebagai media pembelajaran kimia. Model pengembangan yang digunakan dalam penelitian ini adalah model 4-D (define, design, develop and disseminate). Tahap yang dilakukan hanya sampai tahap develop. Data yang diperoleh dianalisis menggunakan momen kappa (k). Media pembelajaran yang dikembangkan dinilai oleh 4 orang validator yang terdiri dari 2 orang guru kimia, 2 orang dosen kimia dan 36 siswa kelas XI IPA. Berdasarkan penelitian yang telah dilakukan didapatkan hasil bahwa media pembelajaran yang dikembangkan mempunyai kategori kevalidan tinggi dengan momen kappa sebesar 0,803 dan kepraktisan media pembelajaran berdasarkan angket praktikalitas respon guru sebesar 0,874 dengan kategori sangat tinggi dan respon peserta didik sebesar 0,898 dengan kategori sangat tinggi.
Penekanan Susut Non-Teknis dengan cara Optimalisasi Pelaksanaan P2TL di PT-PLN-(Persero)-ULP-Indarung
Authors: Arieyansyah Arieyansyah , Mukhaiyar Riki
Published: May 2023

Loss is the amount of energy lost in the process of distributing electrical energy from the substation to the consumer. PT PLN (Persero) ULP Indarung's losses in semester 1 of 2020 were still quite high with a total of 10,314,804 kWh, while non-technical losses contributed 30.76% kWh of the total or equal to 3,173,508 kWh. Subscription Data Needs Attention (DLPD) to obtain Operational Targets (SO) and Operational Targets (TO), establish good communication with internal (Outsourcing) and External (community) parties to obtain accurate Operational Targets (TO), and implement P2TL SOPs in the field. After P2TL optimization efforts were made, the total losses in semester 1 of 2021 were 8,108,489 kWh, while non-technical losses in semester 1 of 2021 contributed 4.03% of the total or equal to 326,762 kWh. Therefore the P2TL optimization effort is said to be successful because it can reduce non-technical losses from 3,173,804 kWh to 326,762 kWh, with P2TL itself contributing 2,020,376 kWh.
The Role Of Village Funds For Community Welfare In A Review Of Maqasid Sharia, Talang Emppat District, Central Bengkulu Regency
Authors: CINTYA Nanda Tri
Published: May 2023

Purpose:This study aims to examine the role of village funds in community welfare in Bengkulu Province.
Methodology:The type of research conducted in this research is descriptive qualitative research with a phenomenological approach. Primary data in this study were data obtained directly from selected informants through direct interviews with the Head of Kembang Seri Village, Pulau Panggung Village and Taba Pasmah Village, Secretary of Kembang Seri Village, Tengah Padang Village and Padang Ulak Tanjung Village, Kembang Seri Village Community, Tengah Padang Village and Padang Ulak Tanjung Village. Secondary data in this study is obtained from the website and written data from informants. This secondary data is used as complementary and supporting data from the primary data. Secondary data in this study relate to the phenomenon to be studied.
Findings:The results of this study indicate that the planning process for using Village Funds in the Village follows maqashid sharia, especially in all dharuriyat aspects.
Implication:Based on the results of research and discussion, it can be concluded that the planning process for using village funds in the Village is in accordance with maqasid sharia. However, several programs still need to try to bring mashlahah to the village community to practice.
Synthesis, Characterisation and Dyeing Properties of New Bifunctional Sulphatoethylsulphone (SES) Azo Reactive dyes based on 1,4-benzenediamine on Silk Fabric
Authors: Oforghor  , A O  , C N Shailong , A Usman
Published: May 2023

Series of novel bifunctional sulphatoethylsulphone (SES) azo reactive dyes were synthesized by tetrazotizing 1, 4-benzenediamine and coupling to various coupling components such as 4-nitroanilino cyanurated H-acids, 4-nitroanilino cyanurated J-acid, 4-nitroanilino cyanurated Laurent acid, 4-nitroanilino cyanurated Tobias acid and 4-nitroanilino cyanurated Gamma acid) respectively. The structures of the synthesized novel bifunctional sulphatoethylsulphone (SES) azo reactive dyes were characterized and confirmed by melting point, UV-visible spectroscopy, FT-IR spectroscopy, 1H-NMR, Mass spectroscopy. The synthesised novel bifunctional sulphatoethylsulphone (SES) azo reactive dyes were applied on silk fabrics under typical exhaustion process and their dyeing properties were evaluated. The percentage exhaustion and percentage fixation of the synthesised dyes on silk fabrics were very good. All the synthesised dyes gave well to excellent properties to washing, light and perspiration respectively.
A First Look at Spatially Resolved Balmer Decrements at 1.0 < z < 2.4 from JWST NIRISS Slitless Spectroscopy
Authors: Matharu Jasleen , Muzzin Adam , Sarrouh Ghassan T. E. , Brammer Gabriel , Abraham Roberto , Asada Yoshihisa , Bradač Maruša , Desprez Guillaume , Martis Nicholas , Mowla Lamiya , Noirot Gaël , Sawicki Marcin , Strait Victoria , Willott Chris J. , Gould Katriona M. L. , Grindlay Tess , Harshan Anishya T.
Published: May 2023

We present the first results on the spatial distribution of dust attenuation at 1.0 < z < 2.4 traced by the Balmer decrement, Hα/Hβ, in emission-line galaxies using deep JWST NIRISS slitless spectroscopy from the CAnadian NIRISS Unbiased Cluster Survey (CANUCS). Hα  and Hβ  emission-line maps of emission-line galaxies are extracted and stacked in bins of stellar mass for two grism redshift bins, 1.0 < z
grism < 1.7 and 1.7 < z
grism < 2.4. Surface brightness profiles for the Balmer decrement are measured and radial profiles of the dust attenuation toward  Hα, A
Hα
, are derived. In both redshift bins, the integrated Balmer decrement increases with stellar mass. Lower-mass (7.6 ≤ Log(M
*/M
⊙) < 10.0) galaxies have centrally concentrated, negative dust attenuation profiles whereas higher-mass galaxies (10.0 ≤ Log(M
*/M
⊙) < 11.1) have flat dust attenuation profiles. The total dust obscuration is mild, with on average 0.07 ± 0.07 and 0.14 ± 0.07 mag in the low- and high-redshift bins respectively. We model the typical light profiles of star-forming galaxies at these redshifts and stellar masses with GALFIT and apply both uniform and radially varying dust attenuation corrections based on our integrated Balmer decrements and radial dust attenuation profiles. If the Hα  star formation rates (SFRs) of these galaxies were measured after slit-loss corrections assuming uniform dust attenuation with typical JWST NIRSpec slit spectroscopy (0.″2 × 0.″5 shutters), the total SFR will be overestimated by 6% ± 21% and 26% ± 9% at 1.0 ≤ z < 1.7 and 1.7 ≤ z < 2.4 respectively.
Cannibalism among adult bush crickets (Ruspolia differens) when fed on different insect preys and artificial diets
Authors: Fombong F. , Tanga C. , Ng’ang’a J. , Kinyuru J. , Vanden Broeck J.
Published: May 2023

Edible bush cricketsRuspolia differens have received considerable interest in recent years primarily due to their widespread consumption across Sub Sahara Africa. Currently, these pseudo grasshoppers are only available in large quantities twice a year during the rainy seasons. Therefore, there is great research interest in studying their farming potential for possible mass rearing. However, due to their cannibalistic behaviours, such attempts have proven an uphill task. This study evaluated measures that may reduce cannibalism by providing alternative prey to rearedR. differens. Ten young adults of either females or malesR. differens were kept separately in well-aerated cages (50×50×50 cm). Then, two sets of experiment were set up as follows: in the no-choice set-up, twenty live or dead second instar (L2) larvae each ofHermetia illucens,Chilo partellus,Bactrocera invadens, andSchistocerca gregaria were administered separately to both male and female cages for six successive days. In the choice set-up, a mixture of twenty live or dead L2 larvae of the insects mentioned above was fed for twelve consecutive days. The control diets included an artificial diet only or artificial diet + corn leaves and were provided for six days consecutively to both males and females separately. In each case, the proportion of cannibalism and the possibility of hunting behaviour byR. differens was recorded. Cannibalism was significantly reduced in both male and femaleR. differens cages where prey was administered compared to the control diets. Besides, cannibalism was significantly reduced in both male and femaleR. differens cages when live insect prey was provided compared to dead insect prey. There were indications of a hunting behaviour exhibited byR. differens as they tended to feed more on living than on dead insect prey. Our findings show that the addition of live insect prey could reduce the prevalence of cannibalism duringR. differens, thus preventing colony collapse due to cannibalism and also providing a safe means to eliminate insect pests, which could serve as prey.
Primary Cementless Femoral Stems in Conversion Hip Arthroplasty After Failed Fixation of Intertrochanteric Fractures
Authors: Thalody Hope S. , Post Zachary D. , Lutz Rex W. , Czymek Miranda , Ong Alvin C. , Ponzio Danielle Y.
Published: May 2023

Salvage conversion hip arthroplasty is a viable solution to restore function and reduce pain after failed intertrochanteric hip fracture fixation. Our primary objective was to assess early outcomes achieved with primary cementless metaphyseal-engaging femoral stems for conversion hip arthroplasty compared with revision diaphyseal-engaging stems. This was a retrospective review of 70 patients with failed intertrochanteric hip fractures subsequently managed with conversion total hip arthroplasty or hemiarthroplasty. Thirty-five patients who underwent conversion using a primary cementless stem were compared with 35 patients who underwent conversion using a revision stem. The groups were similar regarding sex, body mass index, American Society of Anesthesiologists classification, preoperative diagnosis, and implants removed. Clinical and radiographic outcomes and complications were compared over a mean follow-up of 6 years. The primary stem cohort had a shorter mean hospital stay (3.03 vs 4.34 days,
P
=.028). There were no significant differences between the primary and revision cohorts regarding mean time to conversion (2.26 vs 1.75 years,
P
=.671), operative time (127 vs 131 minutes,
P
=.611), incidence of discharge to home (54.3% vs 37.1%,
P
=.23), postoperative complications (5.71% vs 5.71%,
P
=1.0), reoperations (5.71% vs 11.4%,
P
=.669), leg length discrepancy (5.33 vs 7.38 mm,
P
=.210), subsidence (20.0% vs 23.3%,
P
=.981), and Hip dysfunction and Osteoarthritis Outcome Score for Joint Replacement (78.6 vs 81.9,
P
=.723). We report comparable outcomes of conversion hip arthroplasty with the use of primary cementless and revision stems. Current primary cementless femoral stems may be considered for conversion hip arthroplasty for failed intertrochanteric fracture fixation. [
Orthopedics
. 2024;47(1):e6–e12.]
Performance Evaluation of AES, ECC and Logistic Chaotic Map Algorithms in Image Encryption
Authors: Farah Tawfiq Abdul Hussien  , Teaba Wala Aldeen Khairi
Published: May 2023

I

n these days of technology, the usage of images has become increasingly high especially now that almost everyone has access to internet. Also, image helps us to learn, grabs our attention, explains complicated concepts as well as inspires us. Sharing these images is essential and therefore image encryption algorithms are proposed to secure the transmission of these image from many types of attacks such as Man-in-the-middle attack (MITM). In this paper, we proposed a hybrid security system that consist of Elliptic Curve Cryptography (ECC) and Advanced Encryption System (AES). Where ECC is used to generate private/public keys and AES is for encryption and decryption of the image using the ECC generated keys. The system works as follows; it begins by inserting the image to be encrypted which is “lena.png” of size 256*256 and passing it to AES Algorithm along with the generated public key. Then, in AES algorithm, the public key is hashed then used to encrypt the image with AES encryption algorithm. On the other hand, the decryption algorithm works as follows; inserting the encrypted image then calculating the decryption key to use it to decrypt the image using AES decryption algorithm. Finally, our experimental results shows that the National Institute of Standards and Technology (NIST) test shows that the ECC generated keys have better randomness than using only AES generated keys. Also, the encrypted image histogram show that the image pixels values are well distributed across all three channels R, G and B. This shows that the hybrid system is a step further to get a more secure image encryption system against attacks with the generated ECC keys. To get further, Logistic chaotic map has been used to encrypt images for comparison purposes with AES and ECC generated images in terms of randomness, security and histogram
Adaptive HDR Image Blind Watermarking Approach Based on Redundant Discrete Wavelet Transform
Authors: Roa’a M. Al_airaji  , Ibtisam A. Aljazaery  , ALRikabi Haider TH.Salim
Published: May 2023

Remarkable success has been recorded in the usage of digital watermarking which is aimed at protecting the intellectual property of multimedia content. In this paper, a new tone mapping attack-resistant high dynamic range (HDR) image zero-watermarking algorithm is proposed. In this algorithm extraction of stable and invariant features are extracted for efficient zero-watermarking through the application of the redundant discrete wavelet transform (RDWT) to the HDR image. The first step involves transforming the HDR image to HVS color space, and RDWT is implemented using the V-channel so that the LL sub-band which contains the strong structure contents of the image is obtained. The second step involves dividing the LL sub-band into non-overlapping blocks, which are afterwards subjected to the process of transformation through the use of the singular value decomposition (SVD) so that the U matrix can be extracted. Third, the use of an Auto-Regressive (AR) prediction technique was employed in generating a local relationship model and comparison is done to facilitate the production of a binary feature mask. In the fourth process, hybrid chaotic mapping (HCM) is used to generate blended watermark so that the security of the watermark can be fortified. Lastly, the computation of an effective zero-watermark is achieved through the implementation of an exclusive-or operation on the blended watermark and the binary feature mask. Based on the results, the approach presented in this study demonstrated superior performance in terms of withstanding TM attacks and other attacks associated with image processing.