bluuebunny/crossref_metadata_2025 huggingface dataset:
The Relationship between Diet and Physical Activity with the Nutritional Status of More Adolescents at SMP Negeri 1 Campurdarat Tulungagung
Authors: Pusparini Nayunda Putri , Fajar Ibnu , Hadisuyitno Juin , Komalyna D I Nengah Tanu
Published: January 2025

Latar Belakang: Status gizi lebih atau kegemukan merupakan kondisi terjadinya peningkatan berat badan yang disebabkan karena adanya penimbunan lemak tubuh. Salah satu yang menyebabkan status gizi adalah perubahan pola makan yang berlebih dan aktivitas fisik yang kurang.Tingkat konsumsi makanan mengacu pada jumlah makanan dan minuman yang dikonsumsi oleh individu, keluarga, atau masyarakat dalam suatu periode waktu tertentu. Selain tingkat konsumsi mankanan faktor yang mempengaruhi status gizi lebih adalah aktivitas fisik. Pengertian dari aktivitas fisik yaitu setiap gerakan tubuh yang diakibatkan kerja otot rangka dan meningkatkan pengeluaran tenaga serta energi. Tujuan : untuk mengetahui hubungan tingkat konsumsi makanan dan aktifitas fisik dengan kejadian status gizi lremaja di SMP Negeri 1 Campurdarat. Metode: Penelitian ini termasuk penelitian kuantitatif, jenis penelitian survey analitik dengan rancangan menggunakan jenis penelitian case control. Hasil: Hasil dari analisis chi square hubungan antara tingkat konsumsi makanan dengan status gizi responden nilai signifikansi 0,009 atau < 0,05 dan hubungan antara tingkat konsumsi makanan dengan status gizi responden nilai signifikansi 0,003 atau < 0,05 sehingga dapat dikatakan terdapat adanya hubungan. Simpulan : Menunjukkan adanya hubungan pola makan berlebihan dan aktivitas fisik ringan dengan kejadian status gizi pada remaja.
indonesia VARIATION OF CONCENTRATION AND REPEATED USE OF TRIS ACETAT EDTA BUFFER ON DNA TAPE QUALITY Mycobacterium tuberculosis
Authors: Makbul Paneja Rosmini Binti , Rismiarti Zuri , Indra Asep Iin Nur , Wahyuni Yeni
Published: January 2025

Latar Belakang : Mycobacterium tuberculosis yang resisten isoniazid (INH) terjadi akibat mutasi gen, sebagian besar terjadi pada gen katG. Telah ditemukan primer untuk mengidentifikiksai mutasi pada gen katG terjadi dengan panjang produk primer yang bervariasi. Namun hal ini belum dibuktikan secara laboratorium. Dilakukan variasi konsentrasi buffer TAE 0,5x, 1x, dan 1,5x, dan penggunaan buffer TAE secara berulang. hal ini untuk melihat pengaruh variasi konsentrasi terhadap kualitas pita DNA Mycobacterium tuberculosis. Metode : Jenis penelitian yang dipakai adalah quasi eksperimen, Subjek penelitian yang digunakan adalah larutan buffer TAE dengan konsentrasi 0,5x, 1x dan 1,5x yang digunakan secara berulang pada tahap elektroporesis, bahan pemeriksaannya adalah DNA Mycobacterium tuberculosis hasil PCR. Visualisasi hasil elektroforesis pada seluruh sampel dibandingkan dengan ukuran ladder yang digunakan dan semua  produk  yang dihasilkan berada pada ukuran base pair yang sesuai. Penggunaan aplikasi ImageJ dalam proses analisa ukuran DNA menjadi salah satu alternatif yang bisa membantu  menilai ukuran pita DNA. Hasil Penelitian : Pada hasil penelitian yang dilakukan, ditemukan bahwa pita DNA  Mycobacterium tuberculosis yang resisten isoniazid (INH) gen katG  untuk MDR TB pada kodon 315  dengan ukuran produk 101 bp  S315T, 141 bp S315N, 200 bp S315I, 247 bp S315R, 290 bp S315G dan 400 bp R463L diperoleh kepadatan pita DNA pada elektroforesis dengan menggunakan konsentrasi buffer TAE 0,5x ditunujukkan dengan luas area yang terbentuk paling tinggi dibandingkan dengan konsentrasi 1x dan 1,5x, dan dari penggunaan berulang buffer TAE sebanyak dua kali didapatkan visualisasi pita DNA yang masih baik, hanya saja mempengaruhi luas area pita DNA ketika dibaca menggunakan aplikasi ImageJ. Kesimpulan : konsentrasi buffer TAE 0,5x yang mampu memberikan luas area paling tinggi dibandingkan dengan konsentrasi buffer TAE 1x dan 1,5x. Dari proses pengulangan tidak mempengaruhi visualisasi pita DNA namun berpengaruh terhadap luas are yang terbentuk semakin kecil.
 
Kata kunci: Elektroforesis; Konsentrasi buffer TAE;  Mycobacterium tuberculosis; Penggunaan berulang buffer TAE
Pengaruh Suhu dan Lama Penyeduhan Teh Herbal Celup daun Salam dan Daun Sirsak Terhadap Kualitas Sensori dan Aktivitas Antioksidan Sebagai Minuman Fungsional Penderita Hipertensi
Authors: Novitasari Tiara
Published: January 2025

Abstrak
 
Latar belakang: Hipertensi pada dasarnya cenderung sulit untuk dikontrol baik dengan tindakan pengobatan dan tindakan medis dikarenakan penyakit ini memiliki  sifat  yang tidak stabil. Senyawa antioksidan umumnya dimanfaatkan dalam bahan pangan sebagai agen perlindungan kesehatan karena bisa mencegah terjadinya oksidasi dalam tubuh sehingga dapat berperan untuk mencegah terjadinya berbagai macam penyakit. Antioksidan dapat melenturkan dan melebarkan  pembuluh  darah  serta  menurunkan  tekanan  darah. Tujuan: Menganalisis pengaruh suhu dan lama penyeduhan teh herbal celup dari daun salam dan daun sirsak terhadap kualitas sensori dan aktivitas antioksidan sebagai minuman fungsional bagi penderita hipertensi. Metode: Jenis penelitian ekperimental 8 taraf perlakuan dan 2 pengulangan dalam analisis organoleptik dan aktivitas antioksidan. Hasil Hasil penelitian menunjukkan suhu dan lama penyeduhan memberikan pengaruh signifikan (p>0.05) terhadap warna, aorma, rasa, dan kejernihan. Hasil analisa yang telah dilakukan terhadap aktivitas antioksidan yang didapatkan pada teh herbal daun salam dan daun sirsak dengan 8 taraf perlakuan, yaitu : P1 = 97,7 ppm aktivitas antioksidan, P2 = 88,4 ppm aktivitas antioksidan, P3 = 69,8 ppm aktivitas antioksidan, P4 = 83 ppm aktivitas antioksidan, P5 = 98,5 ppm aktivitas antioksidan, P6 = 100,4 ppm aktivitas antioksidan, P7 = 108,7 ppm aktivitas antioksidan, P8 = 111,6 ppm aktivitas antioksidan. Taraf  perlakuan P3 merupakan taraf perlakuan terbaik didapatkan nilai hasil (Nh) yaitu 0,84. Simpulan: Perlakuan suhu dan lama penyeduhan teh herbal daun salam dan daun sirsak memberikan pengaruh tidak signifikan terhadap mutu sensori uji hedonik (warna, aroma, rasa, dan kejernihan).
Kata kunci: Hipertensi; daun salam; daun sirsak; aktivitas antioksidan.
Implementasi Bahasa Phyton Untuk Clusterisasi Data Penjualan Menggunakan Metode K-Means
Authors: Hellyana Corie Mei
Published: January 2025

In a business or trade, the process of keeping stock of goods is one way to provide customer satisfaction. To fulfill this, business owners must be able to analyze which goods or products are selling well, selling well and not selling well in the market, not an easy thing if the business has hundreds or even thousands of products sold every month. This problem can be solved by clustering sales products using the K-Means method. In the clustering process using the Python programming language which is object oriented which produces 3 clusters, where 1 cluster is for products that sell well, the next 2 clusters for products that are selling well and not selling well. The results of this clusterization can later be used by business owners in maintaining inventory and establishing sales strategies.
Evaluasi Kepuasan Pelanggan Wifi Jaring Solusi Persada Menggunakan Metode User Experience Questionnaire
Authors: Ashari Yusuf , Komalasari Yuli , Dewi Yumi Novita
Published: January 2025

Tujuan dari penelitian ini adalah untuk mengetahui variabel yang mempengaruhi seberapa puas pelanggan dengan layanan wifi PT Jaring Solusi Persada. Dua variabel yang berdampak pada kepuasan pelanggan adalah loyalitas pelanggan dan kualitas layanan. Selain itu, studi ini akan melihat bagaimana pengalaman pelanggan dipengaruhi oleh kepuasan pelanggan dengan layanan wifi PT Jaring Solusi Persada. Menurut teknik penelitian, menganalisis perilaku peserta melibatkan sejumlah fase. Data kuantitatif nominal atau numerik yang digunakan dalam penelitian ini dikumpulkan dari penelitian sebelumnya dan terkandung dalam kumpulan data. Data ini akan digunakan untuk menjelaskan hasil penelitian setelah dilakukan analisis. Karena berasal dari ringkasan pertama atau asli, data ini dianggap primer. Data yang didistribusikan untuk kuesioner diperiksa untuk validitas dan reliabilitas. Kebaruan (rata-rata 0,77), efisiensi (rata-rata 1,61) ketergantungan (rata-rata 1,24), ketajaman (rata-rata 1,64), stimulasi (rata-rata 1,14), daya tarik (rata-rata 1,47), untuk setiap kategori.
Sistem Penunjang Keputusan Untuk Pemilihan Siswa Berprestasi Di SDN Pulogadung 01 Pg Dengan Metode SAW
Authors: Damainingati Biru Epa , Permana Rifky
Published: January 2025

Pendidikan di sekolah dasar adalah tahap penting dalam pembentukan karakter dan kemampuan siswa, seperti yang terlihat di SDN Pulogadung 01 PG. Sekolah memiliki tanggung jawab untuk mengidentifikasi dan mendukung siswa berprestasi agar mencapai potensi maksimal mereka. Saat ini, pemilihan siswa berprestasi di SDN Pulogadung 01 PG masih dilakukan secara manual, yang mengakibatkan proses perhitungan menjadi kurang efektif dan objektif. Selain itu, hanya kriteria nilai rapor yang digunakan. Penelitian ini bertujuan untuk membuat sistem penunjang keputusan berbasis web dengan menggunakan metode Simple Additive Weighting (SAW) untuk memilih siswa berprestasi dengan kriteria yang lebih komprehensif, yaitu rata-rata nilai rapor, nilai kehadiran, dan nilai kegiatan ekstrakurikuler. Data dikumpulkan melalui observasi, wawancara, dan studi pustaka. Setelah pengumpulan data, dilakukan pemrosesan data, diikuti dengan perbandingan perhitungan antara metode manual dan sistem. Hasil penelitian ini menunjukkan bahwa perbandingan antara perhitungan manual dan sistem berbasis web menghasilkan hasil yang 100% identik dan akurat, sehingga mencapai tujuan dari pembuatan sistem penunjang keputusan berbasis web ini. Sistem ini membuat pemilihan siswa berprestasi yang dilakukan oleh SDN Pulogadung 01 PG menjadi lebih cepat, lebih efektif, dan lebih objektif.
Prediksi Harga Komoditi Emas Menggunakan Metode Long Short-Term Memory Dengan Penambahan Optimalisasi
Authors: Hidayat Wahyutama Fitri , Handayani Kartika , Malau Yesni , Purnama Rachmat Adi , Setiadi Ahmad
Published: January 2025

Seiring dengan perkembangan teknologi, peluang muncul di setiap aspek kehidupan. Sektor ekonomi merupakan salah satu bidang yang terkena dampak kemajuan teknologi. Salah satu aspek ekonomi yang dipengaruhi secara positif oleh teknologi adalah komoditas emas. Di era saat ini, investor terlibat dalam perdagangan emas harian. Dengan memanfaatkan teknologi, pembelian atau penjualan komoditas emas dapat dihitung dengan cermat. Berdasarkan hal tersebut, model pembelajaran mesin dirancang menggunakan LSTM dan eksperimen dilakukan dengan penambahan pengoptimalan ADAM, NADAM, dan ADAMAX untuk menemukan nilai terbaik. Eksperimen mengungkapkan bahwa optimasi terbaik dicapai dengan menggunakan pemisahan data untuk pelatihan dan pengujian 80:20 dengan optimasi NADAM. Hasil penelitian menggunakan model LSTM dengan optimasi NADAM pada data pelatihan menghasilkan nilai RMSE 0,0199, nilai MSE 0,0003, dan Skor R2 0,9804. Sementara itu, dengan menggunakan data pengujian menghasilkan nilai RMSE sebesar 0,0260, nilai MSE sebesar 0,0003.
Pengaruh Konten Instagram @Evtessia Terhadap Sikap Pengembangan Diri
Authors: Marzuki Rayka Syachlia , Emeilia Rindana Intan Emeilia
Published: January 2025

Rasa percaya diri memainkan peran penting dalam mendorong atau mengurangi risiko gangguan mental pada remaja. Pengembangan diri adalah proses aktif untuk meningkatkan karakter, sifat, perilaku, dan kebiasaan seseorang. Akun Instagram @Evtessia adalah salah satu akun yang berisi motivasi serta pemahaman mengenai isu-isu yang dialami mengenai pengembangan diri. Penelitian ini bertujuan untuk mengeksplorasi apakah konten yang diposting di akun Instagram @Evtessia memiliki pengaruh terhadap sikap pengembangan diri para pengikutnya. Teori yang menjadi landasan dalam penelitian ini adalah teori Stimulus-Organisme-Respons (SOR). Teori SOR fokus pada bagaimana stimulus dari lingkungan, seperti konten media sosial, mempengaruhi organisme (pengguna), yang kemudian menghasilkan respons dalam bentuk perubahan sikap atau perilaku. Metode yang digunakan dalam penelitian ini adalah metode penelitian kuantitatif, dimana sampel dipilih menggunakan teknik purposive sampling. Kuesioner disebarkan kepada 100 responden pengikut akun Instagram @Evtessia. Hasil penelitian menunjukkan bahwa akun @Evtessia memiliki pengaruh 50,2% terhadap sikap pengembangan diri, sisanya sebesar 49,8%, dipengaruhi oleh faktor-faktor lain yang tidak diteliti dalam penelitian ini.
The Infidelity of Using Detective Story Formula in Enola Holmes Film Adaptation
Authors: Sabani Irbatun , Istiani Imas
Published: January 2025

Adapting a novel into a movie combines creative art and technical challenges. The film director is required to make the novel story that is lifted to the big screen have uniqueness from creative ideas with limited film duration, various creative interpretations, and commercial interests. The process will result in two-story forms: maintaining the novel's authenticity or changing specific components. Therefore, this research compares Nancy Springer's Enola Holmes novel, published in 2006, and Harry Bradbeer's film adaptation, released in 2020. This comparison is carried out to find the fidelity or infidelity of using the detective story formula in the Enola Holmes film related to the director's creativity and the technical challenges in the adaptation process. Using the descriptive qualitative method and Cawelti's detective story formula theory, the result of data analysis shows that Enola Holmes' novel is classified into the classic detective story formula. At the same time, the movie adaptation is categorized into the hard-boiled detective story formula. This theory is applied through the differences between the focus of the story, the setting, and the role of women. These differences lead to infidelity in using detective formulas that aim to develop and clarify the storyline and make some things more realistic when the novel's story is adapted into a movie that refers to commercial interests and audience satisfaction.
Repeatability of Noninvasive Break-Up Time Measurements using Keratograph Oculus 3
Authors: Musilová Lenka , Vodičková Alena , Pluháček František
Published: January 2025

Aim: The primary aim of this study is to evaluate the repeatability of noninvasive break-up time (NIBUT) measurement by keratograph when it is determined from one, two or three partial measurements, and to recommend a suitable methodology for practice. Another goal is to verify that repeated measurements do not affect the measured value.

Material and Methods: Thirty-eight healthy volunteers (30 women and 8 men) aged between 19 and 50 years old were included in the study, in which only one eye of each volunteer was measured. The study was designed as a prospective one. Each subject adapted to the local conditions of the laboratory for 15 minutes and subsequently underwent two series of NIBUT measurements (test, retest) on an OCULUS 3 Keratograph. The minimum time interval between the two series was 10 minutes, in which each series contained three partial measurements approximately 3 three measurements in the given series. Repeatability was assessed by a Bland-Altman analysis and expressed as a repeatability coefficient. In every case, only the time of the first break-up of the tear film was monitored.

Results: The statistical analysis did not show statistically significant differences both between partial measurements of NIBUT in the individual series (p = 0.92, p = 0.81) and when comparing all six measurements (p = 0.95). The mean values of the partial measurements ranged from 13.6 s to 14.4 s. The repeatability coefficients were found to be 15.0 s, 12.1 s and 10.0 s for methodologies A, B and C, respectively. A supplementary analysis for 12 eyes with low NIBUT (< 10 s) showed statistically significantly better repeatability in this group, with coefficients of 7.0 s (methodology A), 6.0 s
(B) and 4.6 s (C).

Conclusion: Determination of NIBUT from three consecutive measurements (with a sufficient interval of ideally a few minutes) significantly improves repeatability. Such repeated NIBUT measurements do not have a significant effect on the measured value. The mentioned methodology for measuring NIBUT on a keratograph can be recommended for use in practice.
Iridocorneal Endothealial Syndrome. Case Reports
Authors: Lahodová Kristýna , Hlinomazová Zuzana , Samková Klára , Vokrojová Magdalena
Published: January 2025

Aim: Iridocorneal endothelial (ICE) syndrome is a rare disease characterized by abnormal proliferation and structural changes of the endothelium, obliteration of the iridocorneal angle, and anomalies of the iris. The consequence of these changes is secondary glaucoma and corneal decompensation. The etiology is unclear, and the syndrome more commonly affects middle-aged women.

Case reports: In this article we present two different case studies of young patients diagnosed with ICE syndrome with complications. The first case report is about a young woman in whom surgical treatment of glaucoma and corneal edema was successful. On the other hand, the second report presents a complicated case of a 29-year-old patient whose treatment was not successful despite repeated interventions.

Conclusion: This text highlights the complexity of ICE syndrome, the difficulty of its therapy and the importance of early diagnosis.
Notas sobre o processo de autocriação permanente do neoliberalismo: do projeto econômico à nova racionalidade destrutiva
Authors: Carlos Antonio de Souza Moraes  , Kellen Magalhaes da Silveira  , Thaís Siqueira Gomes Barreto  , Alessandra Genú Pacheco
Published: January 2025

Neste artigo, propomos uma análise do neoliberalismo a partir do princípio da totalidade, de tal forma que possamos transitar entre aspectos políticos, econômicos, sociais e subjetivos, endossando a tese de Dardot e Laval (2016), de que se trata de uma nova racionalidade que se estrutura na ação dos governantes e na própria forma de ser e viver dos governados. Para o seu desenvolvimento, recorremos ao materialismo histórico-dialético como perspectiva teórico-metodológica, e ao estudo de obras nacionais e internacionais que têm apreendido criticamente a atual conjuntura sócio-histórica como totalidade contraditória. Os resultados apontam para um processo de autocriação permanente do neoliberalismo, que se espraia sobre a totalidade das relações sociais, fragiliza e disciplina corpos e mentes por meio da captura das subjetividades e desejos, como ferramenta de controle. Na conclusão, abordamos quatro elementos a serem considerados em eventuais pesquisas sobre o tema.
COMPARATIVE ASSESSMENT OF ECONOMIC EFFICIENCY AND PROSPECTS OF GEOTHERMAL SYSTEMS AT ABANDONED MINES IN DIFFERENT COUNTRIES
Authors: Rudakov Dmytro , Inkin Oleksandr
Published: January 2025

The purpose is to develop and test a methodology for assessing the economic efficiency of geothermal systems of various types at mines, which takes into account the effects of equipment costs and electrical and thermal energy and allows for providing recommendations on the perspective of installing systems considering their technological features.

Methods. The proposed comprehensive approach includes analytical calculations of the cost of electrical energy consumed by the systems and thermal energy they produce, evaluation of the expenses for the primary and accompanying equipment for the systems from different manufacturers, evaluation of the net present value and payback period of the systems depending on the discount rate and energy tariffs in different countries.

Findings. The ratio of the electricity tariff to the thermal energy tariff is a critical indicator that quantifies the profit from geothermal system operation in mines. When the value of this parameter is above 3.5 (Great Britain), the profit is negative; at 3.1 (Ukraine, 2023), the profit is positive only for irreversible open-type systems at a distance to the heat consumer of up to 2 km, at 2.2 (Germany, and Ukraine in 2021) the profit is positive values regardless of the system type. Under favorable conditions, the net present value is estimated at several million euros for irreversible systems, and hundreds and tens of thousands for circulation and closed-loop systems. In Ukraine, the net present value achieved positive values in the pre-war period. Still, currently, due to a sharp increase in electricity tariffs against the background of almost static tariffs for heating services, this parameter has become negative, as in Great Britain in the last few years. It was established that the shortest payback period of the systems should be expected in Germany and the longest in Great Britain.

Originality. The methodology, in contrast to existing ones, encompasses the evaluation of the economic efficiency and prospects of installing geothermal systems at abandoned mines, depending on the energy expenditures when mine water heat recovery, electric and thermal energy costs, and technological features.

Practical implication. The proposed methodology can be used for geothermal system design at the mines for preliminary evaluation of modern economic criteria for their operation, including profit, net present value, and payback period.

Keywords: Mine water, geothermal system, profit, present value, payback period.
IMPROVEMENT OF A SEPARATE METHOD OF LEVELING UNDERGROUND SURVEYING POLYGONOMETRIC COURSES
Authors: Nazarenko Valentyn , Brui Hanna , Kuchin Oleksandr , Tretyak Andriy
Published: January 2025

Purpose. Surveying reference networks are the main geometric basis for all underground surveys and consist of polygonal lines that are usually laid along capital and main mine workings. When laying polygons along the workings, the horizontal angles between each two adjacent sides of the passage, the inclination angles and the lengths of the passage sides are measured. Each measurement is performed with a certain error, which ultimately leads to errors in determining the coordinates of the polygons. Since Ukrainian coal mines have been mining their mine fields for a long time, the total length of mine workings at each mine reaches many tens of kilometers. The construction of each new mine workings is ensured by the surveying service by increasing the length of polygonometric courses of the underground surveying network. Therefore, the aim of the work is to improve the separate method of leveling underground surveying polygonal courses, which will reduce the errors in the coordinates of the points of polygonal courses.

Methods. The article investigates the issue of leveling underground surveying reference plan networks. The study considers the methodology for performing angular measurements, which ensures the accuracy regulated by regulatory documents. On the example of a real underground polygonometric course, various methods of equalization of measurement results are analyzed.

Results. Based on the results of the calculations, an unconventional method of equalization is proposed, which consists in separate equalization of angles and coordinate increments, but at the same time, corrections to the angular measurements are introduced in direct proportion to the calculated theoretically possible errors of angle measurement and inversely proportional to the sum of the theoretically possible errors of all angles of the course.

Scientific novelty. It is shown that in the absence of sufficient initial data for a strict method of alignment of underground polygonometric tunnels, the proposed alignment scheme is more rational than the separate alignment method.

Practical implication. It is proved that the recommendation of regulatory documents on the use of theodolites with a counting accuracy of 15” does not provide the required accuracy of horizontal angle measurements and in polygonometric courses with sides up to 20 m, only automatic centering of the theodolite and signals should be used.

Keywords: underground polygonometric courses, measurement accuracy, surveying reference network, misalignment, equalization of measurement results.
M-learning e realidade aumentada no ensino e aprendizagem de modelagem do vestuário
Authors: Amorim Carolina Anderson Carioni , Fernandes Leonardo Leiria , Guerega Lucas
Published: January 2025

Este trabalho apresenta um estudo sobre o desenvolvimento de um aplicativo com recursos didáticos para o ensino e aprendizagem de modelagem do vestuário. A metodologia para a elaboração do protótipo percorreu as seis fases do método Design Science Research e, para avaliar a experiência dos usuários, foi utilizado o modelo de Favo de Mel, de Morville. O aplicativo foi testado com uma turma do Curso Técnico em Modelagem do Vestuário e, para coleta de dados, os alunos responderam a um questionário online. A evasão e a desmotivação dos estudantes têm sido um problema persistente que afeta o sistema educacional e compromete o desenvolvimento de futuros profissionais. Diante desse desafio, é fundamental desenvolver estratégias e criar recursos que estimulem a permanência e promovam o interesse dos alunos da era digital. O estudo mostrou o potencial do m-learning em promover o engajamento e melhorar a aprendizagem, já que os usuários avaliaram o aplicativo como útil, valioso e desejável.
Feiras de Ciências: percurso de constituição da Mostratec na Fundação Liberato (1974 - 2009)
Authors: Müller Deise Margô , Grazziotin Luciane Sgarbi S.
Published: January 2025

Este texto tem por objetivo historicizar o percurso de constituição da Mostra Internacional de Ciência e Tecnologia – Mostratec, evento organizado pela Fundação Escola Técnica Liberato Salzano Viera da Cunha, e compreender sua colaboração ao fortalecimento da representação de instituição de ensino de excelência, que realiza iniciação científica no Ensino Médio Técnico. Como escolha metodológica, foi utilizada a produção historiográfica vinculada à temática das Histórias das Instituições de Ensino. Ao se investigar a gênese do processo de implantação da feira na escola, foi possível compreender a construção da potencialização da representação de excelência de ensino em tal instituição e estabelecer as redes que possibilitaram a trajetória do evento nesta escola.
El paisaje sonoro en la literatura electrónica: Nuevas representaciones intermediales y multimodales de la textura sonora
Authors: Ledesma Urruti Vanesa
Published: January 2025

Introducción: Se ofrece un análisis de distintas representaciones del paisaje sonoro en la literatura electrónica en un contexto intermedial y multimodal, estableciendo relaciones entre las composiciones sonoras de la literatura tradicional y las nuevas texturas sonoras más allá del papel o el texto escrito. Metodología: Se utilizan tres criterios de análisis: la sonoridad vocal, observando las transformaciones que ha sufrido la representación de la voz en la literatura, con la consiguiente amplificación de conceptos tradicionales como el de oralidad, la sonoridad ambiental y las nuevas formas de “entretejer” los sonidos no sistematizados de los objetos circundantes y las voces humanas, así como las nuevas relaciones entre forma y fondo en las composiciones sonoras, y la sonoridad inmersiva donde la profundidad y direccionalidad del sonido potencian un conocimiento relacional del mundo circundante dentro de una concepción situacional de la literatura. Resultados: El análisis y la tipología del paisaje sonoro propuestos resultan muy útiles como herramienta crítica no solo para la interpretación de la literatura, sino también para el fomento de la alfabetización sonora. Conclusiones: Se contribuye al estudio crítico de la literatura electrónica al demostrar que las formas emergentes de significación narrativa del sonido requieren nuevas aproximaciones desde la teoría literaria.
Críticas y desafíos actuales en la formación en Gerencia de Proyectos
Authors: López Hurtado Jonnathan
Published: January 2025

Introduction: The objective of this research is to develop a critical vision to establish the current challenges in the training or teaching exercises of project management. Methodology: To do this, a qualitative approach is used with emphasis on documentary review with a reflective posture which takes into consideration the researcher's own experiences and assumptions to influence the interpretation of the data. To this end, the research is divided into five chapters which are: crucial importance of project management training for organizational success, criticism of traditional project management training approaches, current challenges in project management training, trends and new methodologies in project management training and impact of technology in project management training. Results: Subsequently, a discussion is carried out on the main findings with a propositional perspective, thus allowing us to conclude that project management training currently faces various challenges. Conclusions: However, by deeply analyzing these challenges and implementing effective solutions and recommendations, it is possible to train highly trained and competent professionals in this field.
Screening Authority
Authors: Ball Andrew J.
Published: January 2025

Welcome, readers, to the final installment of the ninth volume of Screen Bodies. We are pleased to present an issue that features such theoretically rich and diverse approaches to media studies. The first three articles in this issue focus on digital and internet culture, examining the social relations fostered by augmented reality and social media.
Feitian in Thick Time
Authors: Ying Zheng
Published: January 2025

This article explores women's re-appropriation of the national discourse of history and heritage in contemporary China. Examining women artists’ recreation of Silk Road heritage objects, I demonstrate how they produce a new narrative of women's time that, in turn, generates an alternative form of agency. In remaking the figure of the feitian (apsaras) from the material heritage of the Silk Road, as represented in Dunhuang Buddhist art, Chinese female artists offer new ways to understand the position of women in Chinese historical cultures. The artists tell these stories not in a linear sequence, but rather via the thick surface assembled with objects—the materials of statues and cyborgs—and human flesh. Based on interviews with the artists, a visual analysis of three artworks in relation to critical race theories (Cheng), and queer theories of temporality (Freeman), this article discusses forms of femininity, agency, and time.
Vehicles of Vision
Authors: Cottle Katherine
Published: January 2025

Anxieties generated from the challenges of sustainable and equitable societies and the hopes for transcending routes through uncertain times have often found their paths crossing within the motion sequence of the dystopian car chase on film. Each decade has met this crossing—of frightening futures and fleeting freedoms—with its own set of driving rules and transport-based dimensions. From Mad Max's original release in 1979 to the most recent Death Race installment, Beyond Anarchy, in 2018, the dystopian car chase on film represents vehicles of vision, in which races for the drivers’ survival, personal freedom, community, meaning, and humanization provide the chance to transcend, even if temporarily, the audiences’ existing fears of the future ramifications of their present societies.
AVALIAÇÃO DA APRENDIZAGEM E ENSINO DE QUÍMICA: TECENDO DIÁLOGOS NECESSÁRIOS À FORMAÇÃO DO PROFESSOR
Authors: Monte Natália de Pontes Leite , VITORINO WILK FELIPE , Rêgo Ana Maria da Cunha , SILVA EDUARDO FRAGOSO DOS SANTOS , Viana Kilma da Silva Lima
Published: January 2025

O presente artigo tem como objetivo geral analisar os principais aspectos da Avaliação da aprendizagem encontrados nas literaturas emergentes e suas relações com o Ensino de Química e como objetivos específicos: (i) Identificar os aspectos que caracterizam as concepções mais emergentes acerca da Avaliação da Aprendizagem de autores brasileiros e estrangeiros (ii) Descrever a Avaliação da Aprendizagem à luz do Ensino de Química a partir da análise bibliográfica de estudos dessa área; (iii) Compreender a formação de professores de Química e suas implicações acerca da construção do ser professor-avaliador. Como fundamento teórico para análise dos dados, foram utilizados os estudos de Viana (2014) que versam acerca da Avaliação da Experiência. Dessa forma, esta pesquisa é uma revisão bibliográfica de abordagem qualitativa com o intuito de aprofundar as discussões acerca do objeto de pesquisa. Ademais, esta pesquisa foi inferida em três partes: a primeira constrói uma tessitura entre as teorias mais emergentes da Avaliação da Aprendizagem a partir das discussões de autores e estudiosos renomados da área em âmbito nacional e internacional; Já a segunda, foca na discussão acerca da Avaliação da Aprendizagem no Ensino de Química e suas implicações relacionadas à Identidade do professor dentro da construção do ser avaliador; A terceira, por fim, discute as bases que refletem sobre a formação inicial de professores de Química e as suas implicações para a construção do ser professor-avaliador.
Education is a feminine brand personality: a case study on facebook advertising by non-state higher education institutions
Authors:   Horizon Campus, Sri Lanka, Janathanan C.
Published: January 2025

The research understands Higher education Institutions and the masculine, and feminine brand personality. Different brand perspectives for Facebook advertisement and development have been set out with unique aspects of creating different advantages. A key issue in this research is the lack of brand personality-based studies in higher education in Sri Lanka. The research methodology does provide desk research with a case study of Facebook ad library-based content publishing by HEIs (Higher Education Institutions) Aaker’s model on brand personality traits is applied: (1) Sincerity, (2) Excitement, (3) Competencies, (4) Sophistication, and (5) Ruggedness. In this research, the role of the results gathered is to provide insights that are enabled by unique findings. With the qualitative research carried out it was clear that the non-state HEIs are promoting a “feminine brand image”. Excitement was a key factor that had not been utilized by then on state HEIs.
What is the effect of supermarket managers’ behavior on food waste?
Authors:   Department of Management of Technology, University of Moratuwa, Sri Lanka, Jayathilake J.P.H.K.E. , Seneviratne B.L.D. ,   Department of Interdisciplinary Studies, University of Moratuwa, Sri Lanka, Liyanage H.L. ,   Department of Management of Technology, University of Moratuwa, Sri Lanka
Published: January 2025

Despite a significant percentage of the world population facing chronic hunger, close to one-third of the food produced within a food supply chain is wasted annually. Predominately visible food waste occurs during harvesting, transportation, and consumption stages. Therefore, the supermarket sector, which contributes to a substantial amount of food waste, remains under-explored in academic research areas. This study employs a quantitative approach, grounded in the theory of planned behavior. The study investigates how food waste behavior is influenced within supermarkets by attitudes, subjective norms, perceived behavioral control, and situational factors. Additionally, the study explores the mediating role of intention within this context. The data were collected from 136 supermarket managers using the survey method and to analyze data multiple regression analysis was employed. The results indicate that Positive attitudes, favorable perceived behavioral control, and favorable intentions are the factors that positively significantly effect on food waste-reducing behavior of supermarket managers. Furthermore, the intention has a mediation effect between the independent variables and the dependent variable (food waste-reducing behavior). Moreover, the study concludes that the attitudes of managers are having a more substantial impact on food waste-reducing behavior rather than perceived behavioral control. The study findings assist top-level management of the supermarkets to identify the critical areas that need to be addressed to reduce food wastage in supermarkets and drive them to make more accurate decisions to minimize food wastage in supermarkets.
Adverse impact of internet shutdown on e-commerce and social media marketing in Bangladesh
Authors:   Center for Sustainable Development, University of Liberal Arts Bangladesh, Bangladesh, Chowdhury S.A. , Jabber M.S.S.B. ,   School of Business, University of Liberal Arts Bangladesh, Bangladesh
Published: January 2025

The rise of e-commerce and social media marketing in Bangladesh has been a significant driver of economic growth, fostering entrepreneurship and expanding market accessibility. However, the frequent shutdowns of internet services, often due to political or security concerns, have posed substantial challenges to the e-commerce sector. Very recently Bangladesh has experienced internet shutdowns for prolonged periods that have had profound implications for e-commerce and social media marketing endeavors. This study examines the ramifications of this shutdown on the digital economy, focusing on the operational and strategic challenges faced by E-commerce businesses and social media marketing activities. During the latest internet shutdown episode, E-commerce platforms witnessed a significant decline in sales compared to periods of regular and uninterrupted internet connections. The inability to place orders and to process online payments by the consumers coupled with the failure to manage inventory by the sellers effectively were the key factors behind this decline. Social media marketing was severely impacted as well, with a huge reduction in engagement metrics due to disrupted content delivery and advertising efforts. To adapt to the sudden disruptions, E-commerce businesses responded by shifting to offline sales and alternative marketing channels. However, these measures helped only partially to recover the financial losses incurred by the disruption. By utilizing data from market reports, online retail platforms, and consumer surveys, the research highlights the immediate and long-term effects of internet shutdowns on online sales, business operations, and consumer behavior. The findings highlight the critical role of internet connectivity in modern business operations and suggest businesses’ need for robust and adequate contingency plans to address such disruptions. The study contributes to the understanding of the digital economy and social media marketing-related vulnerabilities and offers insights into strategies for enhancing resilience against internet-related disruptions.
Parking space optimization using Monte Carlo simulation: case study at the University of Moratuwa
Authors:   Department of Decision Science, University of Moratuwa, Sri Lanka, Sinharage S.P.U. , Dassanayake S.M. , Bakibillah A.S.M. ,   School of Engineering, Tokyo Institute of Technology, Japan, Jayawardena C.L. ,   Department of Earth Resources Engineering, University of Moratuwa, Sri Lanka
Published: January 2025

With over 8.3 million automobiles in Sri Lanka as of 2022, the dominance of private vehicles in urban transportation has led to a marked increase in parking demand, frequently surpassing the available supply. This challenge is particularly pronounced within university settings, where the influx of students, lecturers, and staff often overwhelms the existing parking infrastructure. The University of Moratuwa is a representative case for studying parking optimization strategies, making it an ideal site for this research. This study utilizes Monte Carlo simulations to identify the optimal parking angle along a narrow, one-way road within the campus. By systematically evaluating various parking angles while accounting for constraints such as road width, vehicle dimensions, and necessary driving space, the research identifies parallel parking at 0 degrees as the most efficient configuration, accommodating the maximum number of vehicles. The findings provide a robust, data-driven approach to enhancing parking efficiency, with broader implications for urban traffic management and space utilization in constrained environments. Additionally, the study highlights the potential for integrating advanced simulation techniques into more complex parking scenarios, offering innovative and inspired solutions to the challenges of urban parking.
Impact of project environmental factors on non-financial performance of software projects in Sri Lanka
Authors:   Department of Management Technology, University of Moratuwa, Sri Lanka, Bandara W.K.D.P. , Suwandaarachchi C.M. , Samarasinghe G.D. ,   Department of Industrial Management, University of Moratuwa, Sri Lanka
Published: January 2025

In most projects, project managers believe project success is a matter of meeting the outcome of a few criteria. Mainly project budget, project schedule, project performance, and end-user satisfaction. The goal of project performance is to improve the project's success. In software projects, not only financial factors; there are several non-financial performance aspects that can have a significant impact on overall project success. Further, elements in the project environment can have a significant impact on the project's performance. This research examines the influence of project environmental factors on non-financial project performance in the Sri Lankan software industry. This study presents a comprehensive analysis of the impact of project environmental factors on non-financial project performance in software projects while investigating the mediating effect of strategic decision-making relating to the Sri Lankan software industry. This research is based on a Descriptive Research Design and uses a Quantitative Correlational Research Approach. Data collection is done through the Mono Method. The research employs surveys as the primary data collection method, utilizing questionnaires to gather information from over 150 project team members across various professional areas and levels in software project teams. All participants will receive the same set of questions, and data will be collected through both email and direct contact. Additionally, secondary data was sourced from journal articles, blogs, publications, websites, and government reports. Gathered data examined via Statistical Package for Social Science Software to find the relationship between independent variables, dependent variables, and mediating variables denoted under the conceptual framework and hypothesis of this research study. A systematic review of the literature draws a multidisciplinary approach to build the foundation, addressing the key project environmental dimensions and project non-financial performance factors addressing the mediating effect of strategic decision-making. Findings from diversified sources in this study emphasize the importance of strategic decision-making and aligning project environments with goals for sustainable success.
Cycling routes to mitigate heat stress on cyclists in tropical urban environments: an extendable agent-based modeling framework for strategic decision-making and business applications
Authors:   Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Sri Lanka, Waidyalankara S.A.R. , Dassanayake S.M. ,   Department of Decision Sciences, University of Moratuwa, Sri Lanka, Jayasooriya V. ,   Center for Urban Environments, University of Toronto, Canada
Published: January 2025

Heat stress is a significant concern for cyclists in tropical urban environments, impacting both their well-being and overall thermal comfort. While extensive research has been conducted globally to mitigate heat stress, particularly in cold climate cities where winter heat stress reduces urban thermal comfort, the focus has largely been on pedestrian thermal comfort. Research on addressing heat stress among cyclists, especially in tropical urban settings, remains limited. The optimization of cycling routes to minimize perceived heat stress and improve thermal comfort is an area that has not been extensively explored. This study addresses these research gaps by introducing a novel and effective methodology utilizing an Agent-Based Model to assist urban cyclists in selecting routes that minimize heat stress. By doing so, the study aims to enhance the thermal comfort of cyclists in tropical cities, contributing to a more sustainable and cyclist-friendly urban environment.
Evaluating the effectiveness of online learning and teaching: a study focused on undergraduates at the University of Moratuwa, Sri Lanka
Authors:   Department of Decision Science, University of Moratuwa, Sri Lanka, Dassanayake B. , Gunawardana A. , de Silva T.S.
Published: January 2025

The COVID-19 pandemic led to an unprecedented shift from traditional classroom settings to online learning environments worldwide. This transition emphasized the importance of online learning not only as a response to emergencies but as a crucial mode of education that could shape the future of learning. Online platforms offer opportunities for flexibility, accessibility, and personalized learning experiences, making them increasingly relevant in modern education. However, this rapid transition, particularly in developing countries like Sri Lanka, posed significant challenges and raised critical questions regarding the effectiveness of online education. This study focuses on the University of Moratuwa (UOM), one of Sri Lanka's leading technical universities, and seeks to evaluate the effectiveness of online learning both during the pandemic and in the broader context of ongoing online educational practices. The study primarily aims to assess student engagement, learning outcomes, and the challenges encountered by students during this period. The sudden switch to online learning in Sri Lanka highlighted both the resilience and the challenges of the educational system. Unlike courses initially designed for online platforms, the rapid adaptation of face-to-face courses to virtual environments presented a steep learning curve for both students and educators. The need for a sustainable online learning framework became evident, as this shift revealed underlying issues like technological barriers, student isolation, and the complexity of fostering engagement in a virtual space. This study addresses the research gap by analyzing the experiences within a developing country context, offering insights that are crucial for improving online education globally while proposing strategies for its effective integration into future educational models.
Streamlining documentation and traceability: a study at shop floor level
Authors:   Department of Management of Technology, University of Moratuwa, Sri Lanka, Wickramasinghe K.M.Y.S. , Senanayake T.G.S.C. , Senarathne R.B.H.T. , Karunarathne R.W.V.N.
Published: January 2025

This study explores the inefficiencies and bottlenecks in the documentation and traceability processes of a workshop that relies extensively on manual record-keeping methods. The primary objective of this study is to streamline the documentation process and enhance traceability by transitioning from outdated manual methods to a digital solution. The research methods include semi-structured interviews with key stakeholders and an analysis of the current documentation system. Significant issues identified include technicians' reluctance to document information, delays in recording, errors, and the lack of an effective documentation system for tracking repairs. The study conducted data analysis, including process mapping, document review, employee interviews, and value-added and root cause analysis, which ultimately proposed the implementation of a computer-based document management system integrated with QR scanners. This digital solution aims to increase overall efficiency, automate data entry, and improve document traceability. The QR system entails making a linked database for tracking, creating and attaching QR codes to repair items, and updating the system at every stage of the repair process. The study identified the significance of this sort of technology, which includes improved accuracy, decreased errors, and more efficient operations. According to the study's findings, implementing a QR-based system will significantly enhance resource management and operational effectiveness. Future suggestions involve implementing the system through a pilot program, continuing staff training, and doing frequent assessments to ensure the system is functional and flexible.