bluuebunny/crossref_metadata_2025 huggingface dataset:
Tensions, coherence, and/or progress in early childhood teacher education (ECTE) in the Nordic countries
Authors: Wilhelmsen Terese , Paulgård Østmoen Jostein , Emilson Anette , Rothuizen Jan Jaap , Rydjord Tholin Kristin , Juutinen Jaana
Published: November 2024

This special issue provides some needed insight into the tensions, coherence, and/or progress in early childhood teacher education (ECTE) in the Nordic countries. These topics warrant exploration due to complex, and at times contradictory educational landscapes, which must deal with the question of how to generate comprehensive, coherent, and interdisciplinary education programs. Drawing on studies utilizing different theoretical perspectives on tensions, coherence, and progress in higher education, and with the use of a variety of research methodologies, the Nordic authors in this special issue expand our knowledge on current issues and tendencies in ECTE in Sweden, Norway, Denmark, and Finland. In light of the great importance of and real challenges in the field of early childhood education and care, the question of how to educate early childhood education teachers is highly relevant, and requires more research in, and reflection on, how these teachers are educated. This special issue draws specific attention to opportunities and challenges in ECTE, which has so far received limited research attention.
AVALIAÇÃO DA FERTILIDADE DO SOLO EM PROPRIEDADES AGRÍCOLAS COM INTERESSE NA PRODUÇÃO DE PLANTAS MEDICINAIS EM ITAPURANGA EM GOIÁS
Authors: Ogera Adriana Aparecida Ribon , Reis Laís Naiara Gonçalves dos , Porfírio Laís Moraes de Oliveira , Martins Marco Túlio , Monteiro Marcelo Cardoso , Almeida Taís Ferreira de , Oliveira Thiago Sardinha de , Silva Jadson Rodrigues da , Ribeiro Natália Jardim , Corrêa Silvia Luciane , Miranda Érica Alves
Published: November 2024

Este estudo avaliou a fertilidade do solo em propriedades agrícolas de Itapuranga, Goiás, com interesse no cultivo de plantas medicinais, oferecendo diretrizes para o aprimoramento do manejo agrícola. A produção de plantas medicinais representa uma alternativa sustentável para a agricultura familiar, promovendo a diversificação de renda e o resgate de conhecimentos tradicionais. Amostras de solo de dez propriedades foram analisadas para parâmetros essenciais ao cultivo, incluindo pH, fósforo (P), potássio (K), cálcio (Ca), magnésio (Mg), matéria orgânica (M.O.), capacidade de troca catiônica (CTC) e saturação por bases (V%). Os resultados mostraram que algumas propriedades apresentaram pH abaixo do ideal, comprometendo a disponibilidade de nutrientes. Recomenda-se, nesses casos, a aplicação de corretivos como calcário para equilibrar o pH. Níveis excessivos de fósforo e potássio foram observados em algumas áreas, sugerindo a necessidade de ajuste nas práticas de adubação para evitar desequilíbrios e possíveis impactos ambientais. Em propriedades com deficiência de fósforo, a adubação fosfatada é indicada. Quanto à matéria orgânica, teores baixos foram registrados em certas propriedades, afetando a estrutura do solo e sua capacidade de retenção de água. A aplicação de compostos orgânicos e cobertura vegetal pode aumentar a M.O. e melhorar a saúde do solo. Além disso, a baixa CTC em algumas áreas sugere a necessidade de práticas para melhorar a retenção de nutrientes. Conclui-se que o manejo da fertilidade deve ser adaptado às características específicas de cada propriedade. Este estudo fornece uma base para o desenvolvimento de um Arranjo Produtivo Local (APL) voltado à produção de plantas medicinais em Itapuranga, promovendo sustentabilidade e desenvolvimento econômico na região.
QUALIDADE DE VIDA NO TRABALHO: UMA PERSPECTIVA PARA MEDIR A SATISFAÇÃO DO TRABALHADOR EM UMA INSTITUIÇÃO DE ENSINO NA CIDADE DE MONTES CLAROS/MG
Authors: Silva Wilian Toneli da , Marques Heráclides Veloso , Rocha Verônica Alkimim , Santos Otil Carlos Dias dos , Oliveira Ramon Alves de , Oliveira Frederico Bida de , Santos Karine Gomes dos , Sena Gilvania Barbosa
Published: November 2024

A busca pela qualidade de vida é atualmente o grande objetivo do ser humano. Dada à importância, se vê a necessidade de políticas de qualidade de vida no trabalho, pois este é o local onde as pessoas passam maior parte do seu dia. Este estudo objetivou avaliar a percepção dos funcionários quanto à qualidade de vida no trabalho. Esta pesquisa enquadra-se como quantitativa, descritiva, bibliográfica e estudo de caso. Para coleta de dados utilizou-se um questionário estruturado aplicado aos funcionários da Instituição pesquisada. O público-alvo foram funcionários administrativos, operacionais e professores. Para a análise dos dados foi utilizado recursos estatísticos do programa Excel. Durante a pesquisa verificou-se grande parte dos entrevistados satisfeitos com o que adquiriu profissionalmente, isso resulta numa melhor produtividade devido à realização percebida. No entanto, verificou-se a necessidade de melhoria do ambiente, pois boa parcela dos entrevistados considera este, um ambiente razoável. Conclui-se a partir desta percepção a necessidade de implantação de programas que estimulem a qualidade de vida física e psicológica destes trabalhadores e a elaboração de um plano de cargos e salários
ROTATIVIDADE DE FUNCIONÁRIOS EM UMA INSTITUIÇÃO DE ENSINO: UM ESTUDO DE CASO EM UMA INSTITUIÇÃO DE ENSINO SUPERIOR EM MONTES CLAROS – MG
Authors: Silva Wilian Toneli da , Marques Heráclides Veloso , Rocha Verônica Alkimim , Santos Otil Carlos Dias dos , Oliveira Ramon Alves de , Oliveira Frederico Bida de , Santos Karine Gomes dos , Sena Gilvania Barbosa
Published: November 2024

Os avanços tecnológicos atuais intensificam a competitividade entre empresas, que buscam se consolidar no mercado, aumentar a lucratividade e alcançar seu público-alvo. Essa competição, porém, não ocorre apenas entre empresas do mesmo setor, mas entre todas de forma direta ou indireta. O presente trabalho tem como objetivo identificar e conhecer as possíveis causas da rotatividade dentro da empresa Faculdades Integradas do Norte de Minas – Funorte. A pesquisa foi um estudo de caso com abordagem qualitativa e quantitativa, conduzido em uma instituição de ensino superior em Montes Claros/MG. A amostra foi de 248 colaboradores, obtida por cálculo amostral (5% de erro e 95% de confiança) a partir de uma população de 697 pessoas. Foram aplicados questionários a 124 docentes, 79 colaboradores administrativos e 45 do setor operacional, além de entrevistas com 10 ex-colaboradores e o gestor de Recursos Humanos para coletar dados sobre rotatividade de pessoal. A pesquisa, aprovada pelo Comitê de Ética, visou entender as causas de desligamento e o processo de recrutamento da instituição. Os resultados indicam que a rotatividade impacta a organização com falta de pessoal e contratações rápidas, o que compromete a escolha de perfis adequados e aumenta gastos com treinamento. Porém, a rotatividade também promove renovação, trazendo colaboradores motivados e oportunidades de mobilidade interna. O índice de rotatividade da instituição é considerado positivo e não traz custos prejudiciais. No entanto, há lacunas na percepção dos colaboradores sobre valorização, qualificação e ergonomia. Embora a instituição foque nas pessoas, essa abordagem não é claramente percebida. O endomarketing é sugerido para alinhar objetivos e aumentar motivação e produtividade, fortalecendo o vínculo entre colaboradores e organização.
Effect of Integrated Nutrient Management on Growth and Yield Characteristics of Cauliflower (Brassica oleracea var. botrytis L.) cv. Pant Shubhra under Subtropical Conditions of Uttar Pradesh
Authors: Kumar Vishal , Kushwaha Jitendra Kumar , Singh Aman , Chowdhury Riman Saha
Published: November 2024

A field experiment was conducted during rabi season (September to January) of 2021 and 2022 at the experimental farm of Integral Institute of Agricultural Science and Technology, Integral University, Lucknow, Uttar Pradesh, India. The objective of the experiment is to find out the most efficient combination of different organic and inorganic sources of nutrients to increase the growth, yield characteristics of cauliflower. Total nine numbers of treatments along with the control treatment were assessed in Randomized Block Design with three numbers of replications. In view of, effect of different organic and inorganic sources of nutrients has observed significant variation. The result revealed that the growth parameters like plant height (5.57, 12.47, 19.77 cm), number of leaves (7.97, 9.53, 13.7), length of leaves (17.30, 24.73, 31.73 cm), width of leaves (7.17, 10.20, 15.10 cm), plant spread (285.50, 806.93, 1212.83 cm) at 20, 40 and 60 days respectively, yield parameters like weight of curd (893.73 g), yield of curd plot-1 (13.40 kg), yield of curd ha-1 (25.30 t) were observed higher in 75% N through RDF+25% N through FYM+Azotobacter @ 5 kg ha-1 (T4). INM treatments showed lesser result on growth and yield of cauliflower in T1 (control). The treatment T4 were the most beneficial treatment which may be followed for commercial cauliflower cultivation on large scale. Thus, farmers are suggested to apply 75% N through RDF+25% N through FYM+Azotobacter @ 5 kg ha-1 to increase growth and yield of cauliflower.
FORMULASI SEDIAAN KRIM MINYAK ATSIRI DAUN KEMANGI (Ocimum sanctum L.) DAN UJI AKTIVITASNYA TERHADAP Sarcoptes scabiei
Authors: Putra Ananto Nugroho , Setiyadi Gunawan
Published: November 2024

Skabies telah menjadi masalah kesehatan di seluruh dunia yang disebabkan oleh Sarcoptes  scabiei. Pengobatan skabies dapat menggunakan skabisida topikal dari tanaman kemangi (Ocimum sanctum L.) disertai dengan pola hidup bersih dan sehat pada penderita dan lingkungannya. Penelitian ini merupakan penelitian eksperimental yang bertujuan untuk memformulasikan sediaan krim minyak dalam air (m/a) dengan berbagai konsentrasi zat aktif minyak atsiri daun kemangi, dan untuk mengetahui pengaruh kadar minyak atsiri daun kemangi  terhadap sifat fisik sediaan krim dan aktivitas skabisidanya. Formula konsentrasi minyak  atsiri daun kemangi divariasikan menjadi Formula I (5%), Formula II (10%), dan Formula III (20%). Pembuatan krim menggunakan dasar pembentukan sabun anionik trietanolamin stearate dari gabungan reaksi antara asam stearat dan trietanolamin. Hasil uji aktivitas skabisida dapat disimpulkan bahwa adanya perbedaan signifikan Formula I, II, dan III (P = 0,002 < 0,05) dimana dengan pertambahan konsentrasi minyak atsiri daun kemangi meningkatkan uji efektivitasnya membunuh tungau Sarcoptes scabiei. Formula III (32,6 menit) memiliki potensi sebagai skabisida yang lebih baik dibandingkan Formula I (39,17 menit) dan Formula II (36,98 menit) dengan pembanding kontrol permetrin (29 menit).
Identifikasi Kelimpahan Mikroplastik pada Air Tanah di Kabupaten Karawang, Indonesia
Authors: Putri Sekti Cahyaningrum  , Sari Gina Lova
Published: November 2024

Air tanah menjadi pilihan sumber air yang seringkali dimanfaatkan oleh masyarakat dalam mencukupi kebutuhan berbagai aktivitas domestik yang salah satunya adalah air baku air bersih, dan/atau air minum. Mikroplastik adalah partikel dari plastik yang mempunyai ukuran <5,00 mm berpotensi mengalami biomagnifikasi dan terakumulasi pada tubuh manusia. Mikroplastik yang masuk ke tubuh manusia dapat memberikan dampak negatif pada tubuh dan bersifat persisten. Penelitian ini memiliki tujuan untuk mengidentifikasi kelimpahan mikroplastik pada air tanah yang umumnya dimanfaatkan sebagai sumber air bersih dan/atau air minum yang digunakan masyarakat di Kabupaten Karawang, Indonesia. Pengambilan sampel dilakukan di Karawang Timur sebanyak 1 titik, dan Karawang Barat sebanyak 2 titik. National Oceanic and Atmospheric Administration (NOAA) digunakan sebagai metode dalam preparasi sampel, kemudian dilakukan perhitungan manual menggunakan mikroskop dengan perbesaran 10x untuk menghitung kelimpahan mikroplastik. Data yang sudah didapatkan kemudian dianalisa menggunakan metode deskriptif kualitatif dengan membandingkan hasil penelitian dengan literatur terdahulu yang relevan. Dari penelitian, didapatkan hasil ditemukannya mikroplastik pada sampel 1 di Karawang Timur, dan sampel 2, dan 3 di Karawang Barat dengan nilai masing-masing adalah 19,00; 16,50; 15,50 partikel/L.
OPTIMASI SEREAL PANGAN DARURAT SUBSITUSI TEPUNG BERAS, MAIZENA, DAN TAPIOKA METODE CRISP DAN FUZZY LINEAR PROGRAMMING
Authors: Nurhawa Shalli
Published: November 2024

The purpose of this study was to determine the substitution of rice flour, maizena, and tapioca that used in making cereals product for emergency food. The experimental design used in this study were organoleptic responses which include attributes of color, aroma, taste and texture. The chemical responses used in this study were carbohydrate content, protein content, fat content, water content, ash content, and fiber content. The result showed that the ratio of rice flour, maizena, and tapioca were used for optimized cereal product used in Crisp Linear Programming to determine the highest total calory when the cost material stabil, and Fuzzy Linear Programming used to determine minimal the cost in case the cost of material fluctuated. The result showed that the ratio of rice flour, maizena, and tapioca had an effect on the organoleptic responses, the chemical responses, optimized the highest total calory, optimized the cost in case the cost of material fluctuated, and the determination of product shelf life.
EVALUASI MUTU PRODUK AKHIR MINUMAN PASTEURISASI PADA UNIT LINE PROSES PRODUKSI DI PRODI TEKNOLOGI PANGAN FAKULTAS TEKNIK UNIVERSITAS PASUNDAN
Authors: RUKMANA JAKA , Ikrawan Yusep , Rohima Ira Endah , Anggraeni Chindy , Salam Wildan Qoharisma
Published: November 2024

Tujuan penelitian ini yaitu untuk mengetahui mutu produk akhir minuman pasteurisasi pada unit line proses produksi di prodi Teknologi Pangan Fakultas Teknik Universitas Pasundan yang memenuhi SNI.  Manfaat yang dapat diberikan oleh penulis adalah memanfaatkan unit line proses yang terdapat di Laboratorium Teknologi Pangan Universitas Pasundan, meningkatkan nilai utilitas dan nilai ekonomis terhadap minuman pasteurisasi, mengurangi ketergantungan masyarakat terhadap minuman yang berpengawet tinggi, meningkatkan produktivitas pangan lokal sebagai bentuk diversifikasi pangan, dan mengetahui proses pembuatan minuman pasteurisasi yang tepat dan berkualitas baik. Rancangan analisis yang dilakukan pada penelitian ini adalah  scoring Mutu. Metode ini dilakukan untuk mengetahui apakah minuman pasteurisasi yang dihasilkan pada unit line proses produksi di prodi Teknologi Pangan Fakultas Teknik Universitas Pasundan memenuhi standar mutu sesuai pada SNI 01-3951-1995 dan SNI 3719:2014. Penentuan ini mengacu pada jenis uji yang menjadi persyaratan mutu minuman pasteurisasi. Mutu susu cokelat memenuhi SNI. Dengan kadar protein, viskositas, TPC, Nilai kecerahan (L*) memenuhi nilai minimal yang tertera pada SNI 01-3951-1995 dan memiliki nilai mutu yang lebih baik dibandingkan 2 produk yang berada di pasaran dalam hal atribut warna cokelat dan aroma khas cokelat. Mutu susu murni memenuhi SNI. Dengan kadar protein, TPC, Nilai kecerahan (L*) memenuhi nilai minimal yang tertera pada SNI 01-3951-1995 dan memiliki nilai mutu yang kurang baik dibandingkan 2 produk yang berada di pasaran dalam hal atribut warna putih, rasa asin, konsistensi kekentalan dan aroma khas susu. Mutu sari jeruk lemon memenuhi SNI. Dengan kadar asam total, vitamin C, viskositas, TPC, Nilai kecerahan (L*) memenuhi nilai minimal yang tertera pada SNI 3719:2014  dan memiliki nilai mutu yang lebih baik dibandingkan 2 produk yang berada di pasaran dalam hal atribut rasa asam dan konsistensi kekentalan.
PENGARUH PERBANDINGAN SARI KULIT SEMANGKA (Citrullus lanatus (thunb.)) DENGAN SARI DAUN KELOR (Moringa oleifera) DAN KONSENTRASI KARAGENAN TERHADAP KARAKTERISTIK JELLY DRINK
Authors: Suliasih Neneng Suliasih
Published: November 2024

Penelitian ini bertujuan untuk mendapatkan konsentrasi karagenan dan perbandingan sari kulit semangka dengan sari daun kelor yang tepat untuk menghasilkan karakteristik jelly drink terbaik. Manfaat penelitian ini adalah untuk meningkatkan daya guna kulit semangka dan daun kelor menjadi bentuk olahan pangan yang awet. Dapat meningkatkan produktivitas pangan lokal sebagai diversifikasi pangan. Serta memberi informasi tentang pembuatan jelly drink kulit semangka dengan daun kelor. Rancangan percobaan yang digunakan dalam penelitian ini adalah rancangan acak kelompok (RAK) dengan 9 perlakuan, masing-masing perlakuan diulang sebanyak 3 kali sehingga diperoleh 27 satuan percobaan. Dengan faktor perbandingan sari kulit semangka dengan sari daun kelor p1 (1: 3), p2 (2 : 2), p3 (3 : 1) dan faktor yang kedua yaitu konsentrasi karagenan k1 (0.2%), k2 (0.25%), k3 (0.3%). Respon pada penelitian ini adalah Respon kimia meliputi Penentuan kadar Kalium; Vitamin C; pH. Respon fisik meliputi viskositas; Sineresis; Warna. Berdasarkan hasil penelitian menunjukan bahwa perbandingan sari kulit semangka dengan sari daun kelor berpengaruh terhadap kadar kalium, kadar vitamin C, pH, viskositas dan sineresis. Konsentrasi karagenan berpengaruh terhadap pH, viskositas dan sineresis, tetapi tidak berpengaruh terhadap kadar kalium dan vitamin C. Interaksi perbandingan sari kulit semangka dengan daun kelor dan konsentrasi karagenan berpengaruh terhadap sineresis, tetapi tidak berpengaruh terhadap kadar kalium, kadar vitamin C, pH dan viskositas.
ANALISIS NUTRISI DAN ANTIOKSIDAN UMBI MENTAH DAN KUKUS DARI GANYONG (Canna edulis Kerr.) KULTIVAR LOKAL LEMBANG
Authors: Triani Rini , Marthia Nabila , Nurhawa Shalli , Siti Nurminabari Ina
Published: November 2024

Penelitian ini bertujuan untuk menganalisis kandungan nutrisi dan antioksidan umbi Ganyong mentah dan matang (kukus) kultivar lokal Lembang, hasil pertanian kampung Pasir Angling, Desa Suntenjaya, Kecamatan Lembang, Kabupaten Bandung Barat. Metode yang digunakan adalah analisis kimia untuk menentukan kandungan nutrisi seperti karbohidrat, protein, lemak dan serat serta uji kapasitas antioksidan total (DPPH). Hasil penelitian menunjukkan bahwa umbi kukus Ganyong memiliki kandungan nutrisi dan antioksidan yang lebih tinggi dibandingkan dengan umbi mentah. Ini menunjukkan bahwa proses pemasakan dapat mempengaruhi kandungan nutrisi dan antioksidan dalam umbi Ganyong. Konsekuensinya, umbi kukus Ganyong dapat dipertimbangkan sebagai sumber nutrisi dan antioksidan yang berguna bagi kesehatan.
MIKROORGANISME LOKAL BONGGOL PISANG (Musa paradisiaca A.) MENGGUNAKAN MEDIA AIR CUCIAN BERAS (Oryza sativa L.) DENGAN VARIASI KONSENTRASI SUKROSA UNTUK PENGUPASAN BIJI LADA
Authors: Dede Zainal Arief
Published: November 2024

Tujuan dari penelitian ini adalah untuk mengetahui pertumbuhan Mikroorganisme Lokal (MOL) bonggol pisang pada media air cucian beras dengan perbedaan konsentrasi sukrosa. Penelitian dilakukan dengan menggunakan bonggol pisang yang direndam pada air cucian beras dengan variasi penambahan sukrosa sebanyak 0%, 5%, 10%, dan 15%. Pengamatan dilakukan setiap 24 jam selama 6 hari dengan parameter total mikroba dan pH. Nilai total mikroba tertinggi pada puncak Fase logaritmik secara keseluruhan didapat oleh konsentrasi sukrosa 15% dengan nilai total mikroba 2,42 x 1010 cfu/mL atau setara dengan log 10,38 cfu/mL; diikuti perlakuan sukrosa 10% dengan jumlah koloni 2,53 x 109 cfu/mL atau setara dengan log 9,40 cfu/mL; konsentrasi sukrosa 5% menghasilkan jumlah koloni 2,46 x 108 cfu/mL atau setara dengan log 8,39 cfu/mL; serta nilai total mikroba terendah pada konsentrasi sukrosa 0% sebesar 2,70 x 106 cfu/mL atau setara dengan log 7,39 cfu/mL
Decision Support System Memprediksi Kerusakan Handphone Berbasis Web Menggunakan Algoritma C4.5 di Pioneer Service
Authors: Sihombing Maissy Masitoh , Basri Mhd
Published: November 2024

Sistem Pendukung Keputusan (SPK) digunakan untuk memprediksi kerusakan smartphone di Pioneer Service menggunakan Algoritma C4.5. Pioneer Service merupakan salah satu jasa layanan perbaikan handphone yang setiap harinya menerima berbagai macam keluhan kerusakan handphone. Masalah yang dihadapi oleh Pioneer Service adalah banyaknya faktor yang mempengaruhi kerusakan pada handphone dan waktu yang diperlukan untuk menentukan jenis kerusakan pada handphone tersebut. Kendala lainnya adalah ketika pelangga membutuhkan handphone kembali berfungsi dengan cepat. Permasalahan pada Pioneer Service dapat diselesaikan dengan membuat suatu Sistem Pendukung Keputusan berbasis web dengan menerapkan metode Algoritma C4.5. Aplikasi yang dirancang menggunakan Visual Studio Code dan MySQL sebagai database. Metodologi evaluasi yang digunakan dalam penelitian ini mlibatkan pengujian sistem terhadap dataset keluhan kerusakan handphone untuk mengukur akurasi prediksi. Hasil dari penelitian menunjukkan bahwa sistem pendukung keputusan yang dirancang dapat meningkatkan efisiensi layanan dan kepuasan pelanggan. Penerapan metode algoritma C4.5 telah berhasil meningkatkan akurasi prediksi kerusakan handphone. Penerapan praktis dari Sistem Pendukung Keputusan ini juga diperjelas dengan integrasi sistem dalam operasional Pioneer service, memastikan manfaatnya dalam meningkatkan efisiensi layanan dan kepuasan pelanggan secara konsisten.
Analisis Pola Pengguna Wahana Objek Wisata Hutan Lindung Kota Langsa Menggunakan Metode Apriori
Authors: Akram Rizalul , Novianda Novianda , Pangestu M Ridho
Published: November 2024

Penelitian ini menginvestigasikan pola kunjungan pengguna wahana Ruang Terbuka Hijau (RTH) Hutan Lindung Kota Langsa menggunakan metode Apriori. Dengan latar belakang terkait pelestarian hutan dan pengembangan wisata, penelitian ini bertujuan untuk mendapatkan pola kunjungan, termasuk hari-hari tertentu dan wahana favorit, serta untuk meningkatkan pelayanan dan pengembangan wisata RTH Hutan Lindung Kota Langsa. Data yang digunakan adalah jumlah pengguna wahana selama satu bulan pada empat jenis wahana pada bulan Februari 2023, dengan pengolahan menggunakan Microsoft Excel dan pencarian frequent itemset dilakukan dengan Python. Temuan utama mencakup 38 aturan dengan support minimal 20% dan kepercayaan minimal 80%. Hasil analisis menunjukkan bahwa pengguna wahana cenderung mengunjungi RTH pada hari Sabtu dan Minggu, khususnya pada pukul 17:00, serta wahana favorit utama adalah bebek dayung dan speed boat. Penelitian ini juga mendapatkan hasil kalkulasi yang sama menggunakan pemrograman Python dengan hasil manual excel. Hasil rules yang didapati dengan menggunakan metode Apriori dengan minimum support sebesar 20% dan minimum confidence sebesar 80% adalah sebanyak 38 rules. Pengguna wahana sering mendapati pada hari sabtu dan minggu pada pukul 17:00 ke atas dengan tingkat kepercayaan mencapai 92,68% dan didukung oleh 22,75% dari data keseluruhan. Pengguna wahana sering menaiki wahana bebek dayung dengan speed boat dengan tingkat kepercayaan mencapai 94,22% dan didukung oleh 33,17% dari data keseluruhan. Kesimpulan seemakin tinggi nilai minimum support dan confidence, maka semakin sedikit hasil asosiasi item yang ditemukan, sedangkan semakin kecil minimum support dan confidence, maka semakin banyak hasil asosiasi rule dari item.
Influenced of Discovery Learning Model Assisted by iSpring Presenter on Students HOT Literacy Redox Reactions
Authors: Sara Syaharani , Suyanti Retno Dwi
Published: November 2024

This research aims to determine the influence of the discovery learning model assisted by iSpring presenter media which is greater than the conventional model on students' chemistry literacy HOT abilities and aspects of developed HOTS literacy abilities. Three classes of class X pupils from SMAS Imelda Medan made up the study's population. Thirty students each from classes X MIA 2 and X MIA 3 made up the research sample. Nineteen multiple-choice questions made up the test instrument used in the study Hypothesis testing used the right-hand t test with the research results obtained by the value tcount > ttable (2.243 > 2.002) meaning that Ha was accepted and H0 was rejected, which means that the influence of using the discovery learning model assisted by iSpring presenter media on students' chemical literacy HOT abilities had a greater impact than using the conventional model. on redox reaction material with an N-Gain value of 0.75 (75.03%). Besides that, the HOT literacy skills acquired through the iSpring presenter media-assisted discovery learning paradigm were demonstrated in C5 reasoning with an 87.94% percentage in the redox reaction material.
The Effect of the iSpring - Assisted PBL Model on Students' Literacy HOTS on Reaction Rate
Authors: Tambunan Seli Cornelya Marantara , Damanik Marini
Published: November 2024

Every student is enforced to master scientific literacy in everyday life because this literacy is relevant to students' ability to related issues about science and their ideas as citizens. This research aims to analyze students' HOTS literacy scores using the PBL model with the assistance of iSpring Presenter media on reaction rate material to the hypothesized value of 70 and to present the aspects of HOTS literacy that are experiencing the most progress. This research used a One-Group Pretest-Posttest design. Based on test validation, 20 questions out of 22 valid questions were used (12 questions on the C4 aspect of reasoning, 6 questions on the C5 aspect of reasoning, and 2 questions on the C6 aspect of reasoning). Data analysis shows that the N-Gain value meets the high criteria, namely 70.03%. Hypothesis test analysis shows that ha is accepted or exceeds what was hypothesized (70), the tvalue is 6.96, and the ttable is 2.03 which is outside the ho acceptance area with a two-party test. As well as the results of the analysis of the HOTS aspect of literacy that was most developed in this research was the C5 aspect of reasoning with a percentage of 73.44%.
The Effect of Learning Cycle 5E with Animation Media at Student Activities and Learning Outcomes
Authors: Juniar Anna , Sihombing Vioni Angel Prisilya
Published: November 2024

This study aims to determine the effect of  application of Cycle 5E learning model with animation media at learner activities and learning results. The sample was taken by random sampling of 32 learners at experiment and control room. The research was carried out by providing pre-check, after which learning material by nonelectrolyte and electrolyte solutions were applied with the Cycle 5E learning model with animation media at experiment room and the Conventional model at control class, then the posttest. From statistic processing, the following results were obtained: the average activity of learners at the experiment room was 89.76 and the control room was 80.55 with > or 4.59>1.67. The average learning outcome of learners at the experiment room was 81.71 and the control room was 72.96 with > or 5.57>1.67. Correlation between learner activities and learning results of experiment room learners at the calculation rcount Retrieved rcount=0.583 While rtableat α=0.05 (N = 32) is 0.349. With an index determination of 0.33 with a percentage of 33%. This means that there is a correlation between learner activities and learner learning results learned by the Cycle 5E learning model with animation media at material by nonelectrolyte and electrolyte solutions.
Exploring Trends in Chemical Education: A Bibliometric Analysis (2019-2024)
Authors: Auliah Army , Cahyani Vika Puji
Published: November 2024

A Bibliometric analysis is essential to comprehensively evaluate the progress and impact of chemical education research. The purpose is to analyze the visualization of bibliometric mapping on the network between keys, the most frequently discussed topics, and recommendations for research opportunities on the topic of Chemical Education. This research is quantitative descriptive research with a bibliometric approach. The stages carried out include the data collection process, checking and refilling bibliographic attributes, then bibliometric analysis using VOS viewer software. Data collection is done by searching for Scopus indexed journal articles through Publish or Perish (PoP). Data from Publish or Perish (PoP) is filled in and completed in the author keywords section manually using desktop Mendeley software then integrated into the VOS viewer software for mapping. The results of the analysis of keyword mapping in Scopus indexed scientific articles from 2019-2024, it is known that in the last 5 years, in Scopus indexed journals there are 462 different keywords and form 2072 connecting lines and 35 clusters. The keywords with the strongest links based on VOS viewer include: chemistry education (27), first-year undergraduate/general (25), curriculum (22), general public (20), green chemistry (18), systems thinking (18), high school/introductory chemistry (16), upper-division undergraduate (14).
Comparative Performance Analysis of Intelligent PID Controllers for a Mechatronic System
Authors: Baciu Andrei , Lazar Corneliu
Published: November 2024

Applications of systems engineering in the automotive field have grown over the past two decades. This paper aims at a Model-Free Control (MFC) strategy for this type of application. It is a control method in the Data Driven Control (DDC) category that is suitable for systems with complex dynamics, uncertainties or dynamics that are difficult to model or with an unavailable model. Considering these reasons, MFC is an appropriate control method applicable to the complex dynamics of automotive systems. This paper presents a comparative analysis of two types of MFC controllers: intelligent proportional (iP) and intelligent proportional derivative (iPD) for a mechatronic system application. The system takes into account the longitudinal speed control of the vehicle. First, some authors results on the design of iP and iPD controllers are reviewed. Then, the intelligent controllers are tested in simulation considering the requirement to maintain the desired vehicle speed under different traffic conditions such as urban and extra-urban driving cycles. The control performances of the iP and iPD controllers are compared using different performance indices, with a classical PID controller added to the comparison.
A Short Review of Deep Learning Methods in Visual Servoing Systems
Authors: Botezatu Adrian-Paul , Burlacu Adrian
Published: November 2024

This survey explores the evolution and applications of Visual Servoing Systems in robotics, emphasizing the transition from traditional image processing techniques to the incorporation of neural networks for feature extraction and control. Robotic systems, integral to manufacturing, surveillance, and healthcare, increasingly rely on Visual Servoing for enhanced interaction within various work environments. Initially focused on auxiliary sensors like visual sensors for robustness and accuracy, recent advances have seen a shift towards integrating deep learning methods for direct control and feature extraction. The survey covers the differences that emerge from classical Visual Servoing architectures to novel methods involving Deep Learning, highlighting their respective advantages and limitations regarding stability, precision, and real-time applicability. Innovative approaches, such as Direct Visual Servoing and the use of siamese networks for camera position estimation, demonstrate significant progress in overcoming the challenges of traditional Visual Servoing. Through detailed examination of leading research, the survey highlights the potential of neural networks to revolutionize this domain by enhancing feature extraction, reducing reliance on precise calibration, and improving control laws for complex robotic tasks.
Composition Study for Obtaining Medium-Light Mortars by Using Spent Mushroom Substrate
Authors: Grigorescu Ramona Marina , Iancu Lorena , Ion Rodica-Mariana , David Madalina Elena
Published: November 2024

Besides other lignocellulose waste resulting from agriculture, spent mushroom substrate is a major concern due to the high amount of waste, usually improper disposed. Also, sand-based mortars require the use of this non-renewable and exhaustive aggregate and problems of environment protection arise. The study aims to analyze the possibilities of sand replacement in mortars composition with grounded substrate. The ratio between cement and sand in the studied compositions was 1:1, 1:2, and 1:4. The hardened mortars are analyzed in terms of colorimetric changes, density decrease, mechanical strength, hydrophobic properties, and freeze-frost resistance. Thus, medium-light mortars for applications that requires moderate strengths, with ecological implications results when up to 15% of sand is replaced with spent mushroom substrate. The results can be used for a deepen research, considering also a detailed life cycle assessment of the waste and, secondly, combining the replacement material with other waste types.
Study of the Influence of the Relative Rigidity of an Elastic Hybrid System Without Damping, on Natural Self-Pulsation, Amplitude and Dynamic Factor Due to Forced Vibration
Authors: Marin Cornel
Published: November 2024

The paper aims to study the dynamic behavior of a hybrid elastic system without damping consisting of a beam in a cantilever supported on helical compression springs on which an electric motor is mounted. With the help of the MATHCAD professional program, the influence of the relative stiffness of the elastic bar subjected to bending and the springs subjected to compression was simulated, on the natural pulsation, the amplitude of the vibrations and the dynamic factor of the forced vibrations for two assembly variants of the electric motor
Experimental Studies on the Friction of Mobile Elements in Hydraulic Equipment
Authors: Despa Veronica , Vlădescu Mircea , Popa Carmen
Published: November 2024

In this study we will focus on the problems that arise due to the high travel speeds that the piston of a hydraulic motor develops during operation. These speeds lead to an increase in the value of the kinetic friction coefficient.
Study of the Influence of the Dynamic Absorber on the Natural Pulsation of the Forced Vibration of an Electric Motor Mounted on a Cantilever Beam Subjected to Bending and Supported on Two Helical Compression Springs
Authors: Marin Cornel
Published: November 2024

The paper aims to study the dynamic behavior of an elastic mechanical system without damping consisting of two masses m1 and m2 mounted on a cantilever beam subjected to bending and supported on two helical compression springs, or the influence of the dynamic mass absorber m2 on the pulsation characteristics of the forced bending vibrations of the mass electric motor m1. Using the MATHCAD professional program, the influence of the mounting method of the dynamic absorber on the elastic system's own pulsations can be determined.
On second-order derivatives of the efficient point multifunction in parametric vector optimization problems
Authors: Pham Thanh-Hung , Nguyen Thanh-Sang
Published: November 2024

In this paper, we establish formulae for inner and outer evaluation of the second-order contingent derivative of index γ of the efficient point multifunction in parametric vector optimization problems. The results contained in this paper extend the results of Chuong (2013a) to the second-order sensitivity analysis case. On the other hand, examples are provided for purposes of analyzing and illustrating the obtained results. Concerning the potential domain of application, the functioning of the majority of economic systems depends on a set of indicators (criteria), i.e., the substance of economic systems includes multiple criteria and only the lack of mathematical methods in solving the problems of vector optimization is an obstacle to the effective use of the respective models. Therefore, the study of vector optimization problems is necessary and has practical significance.
A survey on UAVs security issues: attack modeling, security aspects, countermeasures, open issues
Authors: Abdullayeva Fargana , Valikhanli Orkhan
Published: November 2024

The Unmanned Aerial Vehicles (UAVs) are being actively used in various fields including agriculture, surveillance, scientific research, and delivery. Despite their widespread use, UAVs face significant cybersecurity challenges due to their vulnerabilities as cyber-physical systems. UAVs are vulnerable to cyberattacks, which target cyber or physical elements, the interface between them, wireless connections, or a combination of several components. Given the complexity of securing these systems, this paper provides a comprehensive survey of the current state of UAV cybersecurity. Moreover, different cybersecurity issues of UAVs are analyzed, various features, and functions of UAVs are considered. UAV attack classification scheme is constructed and attacks on various components are accounted for. Also, countermeasures against cyberattacks that target UAVs are discussed. Finally, UAV cyber security datasets for research purposes are indicated, and the remaining open issues in this field are identified.
Not all money is created equal: The concept of a hierarchy of money
Authors: Suchánek Marián
Published: November 2024

The concept of a hierarchy of money or the idea that a number of instruments constitute money and that they are hierarchically related to one another is relatively recent and yet quite widespread. However, it is argued, that its comprehension differs. The most elaborated cases in which differing treatments of the term can be found are Modern Money Theory (MMT) and the Money View. At first sight, the MMT’s model of money hierarchy focuses on a hierarchy within a specific unit of account whereas the Money View perceives hierarchy not only within an individual unit of account but also across various units of accounts. But, as is shown, differences are more fundamental. It is argued that different comprehension can be explained by the different distinctions between money and credit and concept of monetary sovereignty within each approach rather than the concept of hierarchy itself. The concept of hierarchy acts, in fact, as a framework that ensures consistency in the use of different money instruments on those level.
One Formalized Approach to Truncated Differential Cryptanalysis of Block Ciphers
Authors: Yakymchuk Oleksii , Yakovliev Serhii
Published: November 2024

We propose a formalized approach to truncated differential cryptanalysis based on ternary masks that separately account for unchanged, obligatorily changed, and unknown bits in differences. We introduce a security parameter for S-boxes and encryption mappings, which bounds the probability of truncated differentials from below, and examine its basic algebraic properties. Our approach enables the adaptation of existing techniques used in classical differential attacks to truncated differential cryptanalysis, allowing us to extract more information from the encryption process and evaluate the complexity of truncated differential attacks.
НУМЕРИЧКИ МОДЕЛ ЗА ДИНАМИЧКЕ ПРОЦЕСЕ ТРОФАЗНЕ КАВЕЗНЕ АСИНХРОНЕ МАШИНЕ
Authors: Живановић Владан , Јеркан Дејан
Published: November 2024

Тема рада јесте динамички модел трофазне кавезне асинхроне машине са уваженим ефектима којима доприноси специфичности конструкције, као што је утицај жлебова на статору и ротору разматране машине. Извршене су симулације противструјног кочења и кочења једносмерном струјом на моделу који је развијен у MATLAB Simulinku. Такође, тако добијени резултати су упоређени са теоријским разматрањима.
PROJEKTOVANJE INFRASTRUKTURE ZA POTREBE KLIJENT-SERVER APLIKACIJE I EVALUACIJA PROJEKTOVANE INFRASTRUKTURE KROZ PRIZMU DOBROG ARHITEKTONSKOG OKVIRA
Authors: Kolović Nikola
Published: November 2024

U sklopu ovog rada je projektovana i implementirana infrastruktura za potrebe klijent-server aplikacije na AWS platformi. Opisani su korišćeni servisi na kojima se infrastruktura zasnika, i prikazani su detalji implementacije servisa. Dodatno, izvršena je analiza i evaluacija projektovane infrastrukture kroz prizmu dobrog arhitektonskog okvira koji AWS platforma obezbeđuje prema dva osnovna stuba: bezbednost i operativna efikasnost. Dobijeni rezultat rada predstavlja sigurnu i skalabilnu infrastrukturu za potrebe klijent server aplikacija, koja je lako proširiva i jednostavna za nadogradnju koje su predložene rezulatima evaluacije.
ФОРЕНЗИКА macOS-а
Authors: Miljković Dušan
Published: November 2024

Дигитална форензика представља важну област информатике, а један од најважнијих аспеката дигиталне форензике односи се на оперативне системе који представљају срце сваког рачунарског уређаја. У овом раду обрађена је тема дигиталне форензике macOS-а кроз анализу самог оперативног система, као и метода и алата за форензику оперативног система macOS. На крају је одрађена и студија случаја која приказује како се неке од метода и алата могу користити за дигиталну форензику
SEMANTIČKA SEGMENTACIJA POKRIVENOSTI ZEMLJIŠTA U GORNJEM PODUNAVLJU NA SLIKAMA SENTINEL-2 SATELITA
Authors: Marinković Miloš
Published: November 2024

U okviru ovog rada opisana je seman¬tička segmentacija pokrivenosti zemljišta u Gornjem Po¬dunavlju sa Sentinel-2 satelitskih slika. Segmentacija je izvršena u 6 klasa: krošnje drveća, vodene površine, trav¬nate površine, tlo, poljoprivredno zemljište i vegetacija na vodenim površinama. Podaci predstavljaju multispektral¬ne slike Sentinel-2 satelitskih slika koje obuhvataju pod¬ručje Gornjeg Podunavlja. Za obuku su korišćeni XG-Boost klasifikator i Random Forest klasifikator. Dronske slike ovog područja služile su za kreiranje činjeničlnog stanja. Kao dodatna obeležja prilikom klasifikacije korišćeni su vegetacioni indeksi. Maksimalna postignuta tačnost iznosila je 93%.
ESTIMACIJA KRVNOG PRITISKA NA OSNOVU FOTOPLETIZMOGRAMA KORISTEĆI VEŠTAČKE NEURONSKE MREŽE
Authors: Jorgovanović Igor
Published: November 2024

U ovom radu se obrađuje postupak estimacije krvnog pritiska, na osnovu obeležja izvučenih iz PPG signala, pomoću veštačkih neuronskih mreža. Napravljeno je više modela neuronskih mreža sa različitim obeležjima na ulazu kako bi se našli najbitnije karakteristike PPG signala koje imaju vezu sa krvnim pritiskom. Na kraju su poređene performanse svih modela za isti set podataka za testiranje.
UPRAVLJANJE SINHRONIM MOTOROM SA PERMANENTNIM MAGNETIMA NA ROTORU U ELEKTROMOTORNIM POGONIMA BEZ DAVAČA NA VRATILU
Authors: Koledin Nebojša , Popović Vladimir
Published: November 2024

Postoje mnogobrojni algoritmi za kontrolu SPMSM bez upotrebe davača brzine na vratilu baziranih na estimaciji EMS. Međutim, to nije slučaj i sa IPMSM jer se informacija o poziciji ne sadrži samo u EMS nego i u reluktanciji rotora. U ovom radu je predstavljen model IPMSM, a zatim predložena konfiguracija observera proširene elektromotorne sile. Za dobijanje informacije o poziciji i brzini rotora predložene su tri metode: PLL, direktna primena arctg funkcije i adaptivni zakon baziran na metodi Ljapunova. Numerička verifikacija algoritma je prvo izvršena u Matlab Simulink programskom okruženju, a zatim i na eksperimentalnoj postavci gde je kontrola napravljena u Typhoon HIL softverskom paketu.
PREDIKCIJA HRONIČNE BOLESTI BUBREGA NA OSNOVU SCINTIGRAFSKIH SNIMAKA UPOTREBОM METODA MAŠINSKOG UČENJA
Authors: Vajda Kristina
Published: November 2024

U ovom radu istražena je primena mašinskog učenja za predviđanje stadijuma hronične bolesti bubrega na osnovu podataka ispitnika i slika dobijenih scintigrafijom. Analizirani su klinički i demografski podaci kao i podaci dobijeni iz slika, a primenjeni modeli su: metod k - najbližih suseda, stablo odluke, metod slučajne šume i gradijentnog pojačavanja. Rezultati su pokazali da metod k - najbližih suseda ima najnižu tačnost od 24%, dok su stablo odluke i metod slučajne šume pokazali znatno bolje performanse sa tačnošću od 96%. Model gradijentnog pojačavanja se najbolje pokazao postigavši tačnost od 100%.
РАЗВОЈ ВЕБ АПЛИКАЦИЈЕ ЗА ПРЕЗЕНТОВАЊЕ ПОДАТАКА О ФАКУЛТЕТИМА И ДАВАЊЕ ПРЕДЛОГА УПОТРЕБОМ "CHAT GPT AI" МОДЕЛА
Authors: Kajtez Mile
Published: November 2024

Рад описује развој “Faculty Info” веб апликације која ће помоћи будућим студетима у процесу доношења одлуке који факултет уписати и којом професијом се бавити у будућности, употребом вештачке интелигенције (у овом случају коришћењем "Chat GPT AI" модела). Такође, корисник има могућност увида у информације о факултетима, департманима, курсевима и предметима, као и постављање питања о истим.
PRIMARNA I SEKUNDARNA KONTROLA ZA KOMPENZACIJU NESIMETRIJE NAPONA ZAJEDNIČKE SABIRNICE SADEJSTVOM PRETVARAČA U MIKROMREŽI
Authors: Džever Aleksandar , Vekić Marko
Published: November 2024

Ovaj rad predstavlja metodu kompenzacije nesimetrije napona zajedničke sabirnice sadejstvom pretvarača energetske elektronike u mikromreži koja radi u ostvrskom režimu. Prikazan je simulacioni model mikromreže sa hijerarhijskom arhitekturom upravljanja, njen rad kada se priključi neuravnotežen potrošač a zatim i dejstvo sekundarne kontrole.
ANALIZA MEHANIZAMA MREŽNE BEZBEDNOSTI NA AWS
Authors: Gordić Nebojša
Published: November 2024

Izrada sistema sastavljenog od više aplikacija/servisa sa akcentom na postavljanje istih ua AWS cloud i njihovu zaštitu firewall-om.
ZAGONETNA AVANTURA U VIRTUELNOJ REALNOSTI
Authors: Bulatović Danilo
Published: November 2024

Ovaj rad opisuje razvoj igre Dungeon Quest VR, zagonetne avanture u virtuelnoj realnosti. Igra je razvijana za VR uređaje Meta Quest 2 i Meta Quest 3. Rad detaljno opisuje priču, likove, gejmplej, mehanizme igre, dizajn nivoa, audio dizajn i korisnički interfejs.
Operationalizing shared decision making in clinical practice
Authors: Shaker Marcus S. , Verdi Marylee
Published: November 2024

Shared decision-making (SDM) requires a clear-eyed view of evidence certainty, context, and equipoise in clinical care. This paradigm of care builds on the foundational ethical principle of patient autonomy, further leveraging beneficence, nonmaleficence, and justice to provide bespoke
care in the appropriate clinical setting. When evidence is carefully evaluated together with acceptability and feasibility, equity, cost-effectiveness, resources, and patient preferences, an individualized assessment of the trade-off between possible benefits and harms can optimize patient
management. In the setting of a conditional recommendation, it is appropriate to engage in SDM with patient partners, to the extent each patient is willing and able to engage in the SDM process. Three conversations inform SDM and include team talk, option talk, and decision talk with discussion
of the plan of care. During these conversations, clear communication strategies that are specific, measurable, achievable, realistic, time sensitive, and provide assessment of absolute (not just relative) risk are important to provide necessary education to patient partners. Follow-up is key
to ensure that decisions lead to effective treatment. Through this process, it is necessary to minimize cognitive overload and promote a minimally disruptive medicine approach. The acronym “HOW” promotes a holistic appraisal of evidence in context, open-minded teamwork with patients
and families, and willingness to be a listening presence while serving as a partner and guide and appreciating the multidimensional and unique nature of each individual. SDM is and will continue to remain a cornerstone of appropriate medical care in settings of clinical equipoise.