bluuebunny/crossref_metadata_2025 huggingface dataset:
Application Of Organic Vegetable Cultivation With The Utilisation Of The Yard
Authors: Safitri Yuli , Listiana Indah , Yanfika Helvi , Silviyanti Serly
Published: March 2023

Organic vegetable cultivation helps provide safe and nutritious food production. The increased consumption of quality vegetables as Food necessitates an increase in production; one endeavour to address these needs is to transform yards into agricultural land for organic vegetable gardening by empowering homemakers. This study aimed to investigate the level of organic vegetable cultivation application and the parameters related to organic vegetable cultivation application in the usage of yards. The study was conducted in October 2021 at the Merpati Asri Women Farmers Group in Pengajaran Sub-village, Bandar Lampung City, with 30 participants. A census with a purposeful procedure and a quantitative approach with non-parametric statistical analysis, especially Spearman rank correlation, are applied. The findings revealed that respondents could implement production, maintenance, and harvest activities under recommended organic farming practises, such as using compost from household waste and making vegetable pesticides from plants, at a high level of application of organic vegetable cultivation on yard land. Drug. The amount of application of organic vegetable growing is strongly related to the experience of homemakers in managing the yard, government support, and the level of suitability of cultivation
The Analysis of Plot in The Novel In His Father’s Footsteps by Danielle Steel
Authors: Dian Oktapiana Dewa Ayu
Published: March 2023

This study is an analysis of Danielle Steel work entitled In His Father's Footsteps that has a historical setting before the World War II, when the Buchenwald concentration camp operated until the three generations of family's life after being liberated from Buchenwald and starting life as an immigrant which is settling in America. This data is the main data source that discusses how Danielle Steel composes the storyline and presents conditions in it. The nature of this study is literary analysis with descriptive qualitative approach to answer the problems posed. In completing the problem formulation in this study, the type of plot using Russell's (1991) theory in the kind of episode plot types. The plot structure using DiYanni's (2006) theory which is classified into exposition, complication, climax, falling action, and resolution. The results of this study discuss how Danielle Steel arranges the plot in a progressive manner as well as the storyline that shows.
The Use of Slang Words in “The Black Panther” Movie
Authors: Febri Rantika Dewa Ayu , Sudipa I Nengah , Aryawibawa I Nyoman
Published: March 2023

The title of this study is a slang word in the movie The Black Panther by Ryan Coogler. This study focuses on identifying the types of slang words and analyze the meaning of one's utterance by the characters in the movie. The data was taken from the movie entitled The Black Panther and were collected by using the observation method. The data were analyzed by using the qualitative method. The types of slang words were analyzed base on the theory proposed by Chapman (1988) who divided types of slang words into two types. The meaning of the slang word is analyzed based on the theory proposed by Leech (1981) who divided the meaning of slang word into 7 types. Based on the result of the analysis show that there are two types of slang words found in this study; primary slang and secondary slang. There are seven meanings of slang words found in this study; conceptual meaning, connotative meaning, affective meaning, social meaning, reflected meaning, collocative meaning and thematic meaning.
Grammatical Relations and Semantic Roles of Arguments in English Verbs of Transfer “Convey”
Authors: Janardana Dwipayana Ida Bagus , Arka I Wayan , Sedeng I Nyoman
Published: March 2023

This study entitled Grammatical Relations and Semantic Roles of Arguments in English Verbs of Transfer “Convey”. It focused on grammatical relations and semantic role of argument within a certain argument structure. The particular and only data source of this study is Corpus of Contemporary American English. This study used accidental sampling method. Therefore, every data found are constructed with transfer verb “convey” proposed by Levin. Base theories of the analysis are Grammatical Relation and Semantic Role by Kroeger, while it supported by theory of Proto-Roles by Dowty and Taylor. The data representation chosen are presented both in formal and in-formal method. There are 3 different argument structures found within the 100 samplings. Transitive Structure turn out to be the most dominant structure, while the other which are intransitive and ditransitive are reasonably represented. All the grammatical relations are found, they are Subject, Object, Oblique, and Adjunct. In the other hand, all the semantic roles are found except stimulus, beneficiary, and accompaniment. Terms proto-agent and proto-patient supports the mapping of the semantic content. Some roles such as theme and instrument have different lexical understanding. It divided into three terms; physical, perceptive, abstract entities. Specifically, the agent classified into three different indication they are non-symbolic agent, metaphorical agent, abstract agent.
Systematic Literature Review: Application of Probing Prompting Learning Model to Improve Students' Numeracy Skill
Authors: Cahyani Cielo Dewi , Mohammad Asikin
Published: March 2023

Numerical skills are important for students to have because numeracy skills are closely applied in everyday life. This article was written with the aim of finding out whether students' numeracy skills can be improved by applying the probing prompting learning model, how are the numeracy skill indicators, and how numeracy skills indicators can be integrated with probing prompting learning. The method used is the Systematic Literature Review (SLR) by reviewing 18 articles of accredited national journals on Sinta 2 to Sinta 5 and international journals indexed by Scopus with the keywords applying the probing prompting model and numeracy skills. The results showed that the implementation of the probing prompting learning model in mathematics learning could improve students' numeracy skills, and indicators of numeracy skills could be integrated in probing prompting learning.
The Application of Sentiment Analysis on Customers Responses in Social Media (Case Study: Indihome and First Media Internet Service Provider)
Authors: Surbakti Feliks Prasepta Sejahtera , Ginting Andi Arifta
Published: March 2023

The development of technology in industry 4.0 era leads to a digitalization process which is marked by the emergence of the internet as one of the important enablers. Indihome and Firstmedia are the most popular Internet Service Providers) ISPs in Indonesia in providing internet services. These two companies certainly have competition in winning the hearts of customers. One of the important factors in this business competition is customer response in the form of reviews which are usually done through social media tools such as Twitter. For this reason, it is important to study how the customer responds in the form of a given sentiment. Sentiment analysis can be a way to study customer responses to products and services. Sentiment Analysis is a method that is part of Big Data in Data Science which is useful for assessing sentiment in the form of positive or negative sentiments. The data collected was 1000 tweets for each ISP which will be processed with the help of Rstudio. The processing results obtained 177 positive tweets, 489 neutral, and 334 negative tweets for indihome while firstmedia obtained 620 positive tweets, 222 neutral tweets, and 158 negative tweets. The result is firstmedia ISPs get a better positive response and the number of complaints is less than indihome. Internet service providers (ISPs) can improve product and service quality by creating a single database system and also implementing the service design blueprint.
Türkiye’deki İhracatçı Sanayicilerin Endüstri 4.0 ve Döngüsel Ekonomi Uygulamalarına Yönelik Bir Ölçek Geliştirme Çalışması
Authors: KARAKADILAR İbrahim Sarper
Published: March 2023

Bu çalışma sanayicilerin lojistik ve üretim süreçleriyle ilgili dijital teknolojilere dayalı yeni bir iş modeli tasarımının kurumsal performans üzerindeki beklenen etkilerinin incelenmesine yönelik bir araştırma modeli önermektedir. Çalışmanın temel amacı hem Endüstri 4.0 hem de döngüsel ekonomi kavramlarını birlikte ele alan özgün bir ölçek geliştirilmesidir. Bu araştırma her iki güncel yaklaşımın benimsenmesinin önündeki engellerin ve uygulamaya geçmesinde etkili olan itici güçlerin belirlenmesini hedeflemektedir. Literatürdeki mevcut bilgi birikiminin uyarlanmasıyla geniş kapsamlı bir anket formu oluşturulmuştur. Önerilen ölçeğin içerik geçerliliği uzmanlardan oluşan bir ekip tarafından değerlendirilmiştir. Ardından ise sektörde görev alan otuz altı profesyonel uygulayıcı tarafından anket soruları yanıtlanarak veri temin edilme süreci tamamlanmıştır. Yürütülen pilot çalışma verilerine dayanılarak yapılan keşifsel faktör analizi sonucunda ise Endüstri 4.0 ve döngüsel ekonomi ölçeği araştırma modelinin öngördüğü gibi üç alt boyuta yüklendiği gözlenmiştir. Böylece “sürdürülebilir lojistik”, “akıllı üretim operasyonları” ve “dönüşümün önündeki engellerden” oluşmakta olan bu ölçek yapısıyla ileride yapılacak daha geniş kapsamlı araştırmalar için bilimsel birikime katkı veren bir ön çalışma gerçekleştirilmiştir.
A blood cell atlas to guide us toward transplant success
Authors: Melani Rafael , Levitsky Josh , Kelleher Neil
Published: March 2023

Almost everything in our bodies is made from or by proteins. Just like reading a book opens a window to the world, studying these molecules helps us understand human physiology better. With this in mind, we created the first repository housing the exact composition of 57000 proteins in blood cells and managed to advance the prediction of whether liver transplant recipients may reject their graft
KESULITAN GURU SMA DALAM PEMBELAJARAN EKONOMI BERDASARKAN KURIKULUM 2013 DI KABUPATEN INDRAGIRI HILIR
Authors: Mulgaidah  , Sukarni
Published: March 2023

Penelitian ini bertujuan untuk: (1) mendeskripsikan kesulitan guru dalam perencanaan pembelajaran ekonomi sesuai dengan Kurikulum 2013 di Kabupaten Indragiri Hilir. (2) mendeskripsikan kesulitan guru dalam pelaksanaan pembelajaran ekonomi sesuai dengan Kurikulum 2013 di Kabupaten Indragiri Hilir. (3) mendeskripsikan kesulitan guru dalam  penilaian pembelajaran ekonomi sesuai dengan Kurikulum 2013 di Kabupaten Indragiri Hilir. (4) mendeskripsikan hal yang paling menyulitkan guru dalam pembelajaran ekonomi sesuai dengan  Kurikulum 2013 di Kabupaten Indragiri Hilir. Penelitian ini merupakan penelitian deskriptif dengan pendekatan kuantitatif. Subjek penelitian adalah guru yang tergabung dalam MGMP Ekonomi di Kabupaten Indragiri Hilir sejumlah 47 guru. Pengumpulan data menggunakan angket, dokumentasi dan observasi. Analisis data menggunakan analisis statistik-deskriptif kemudian diinterprestasikan kedalam presentase sesuai kriteria indikator yang diukur. Hasil penelitian menunjukan bahwa: (1) Pada tahapan perencanaan pembelajaran, tingkat kesulitan guru masuk kategori tidak sulit dengan nilai tingkat kesulitan secara umum termasuk kategori sedikit. (2) Pada tahapan pelaksanaan pembelajaran, tingkat kesulitan guru masuk  kategori cukup sulit dengan nilai tingkat kesulitan secara umum termasuk kategori sedikit. (3) Pada tahapan penilaian pembelajaran, tingkat kesulitan guru masuk kategori cukup sulit dengan nilai tingkat kesulitan secara umum masuk kategori sedikit. (4) Tahapan yang paling menyulitkan guru ekonomi berdasarkan Kurikulum 2013 di Kabupaten Indragiri Hilir adalah pada tahap pelaksanaan pembelajaran.
PENGEMBANGAN E-MODUL BERBASIS HOTS (HIGHER ORDER THINKING SKILLS) PADA MATERI PERUSAHAAN DAGANG DI KELAS XII MIPA 2 SMA NEGERI 8 PEKANBARU
Authors: Noviani  , Purba Andy Wijaya
Published: March 2023

Penelitian ini bertujuan untuk: (1) Untuk mengetahui proses pengembangan E-modul  berbasis HOTS (Higher Order Thinking Skills) pada materi perusahaan dagang. (2) Untuk mengetahui kelayakan E-modul  berbasis HOTS (Higher Order Thinking Skills) pada materi perusahaan dagang. Desain penelitian ini adalah penelitian dan pengembangan (Research and Development). Model pengembangan yang digunakan yaitu model yang diadaptasi dari Sugiyono, yakni (1) potensi dan masalah, (2) mengumpulkan informasi, (3) desain produk. (4) validasi desain, (5) perbaikan desain, (6) uji coba produk, (7) revisi produk, (8) uji coba pemakaian, (9) revisi produk, (10) pembuatan produk masal. Hasil penelitian ini adalah tersedianya bahan ajar berupa e-modul berbasis HOTS untuk menumbuhkan/meningkatkan kemampuan berpikir tingkat tinggi peserta didik yang telah valid melalui tahapan validitas dan teruji kelayakan melalui tahap uji coba.
ANALISIS PERANAN GURU DALAM MENGATASI KESULITAN BELAJAR SISWA
Authors: Sriningsih  , Fitriani
Published: March 2023

Penelitian ini adalah jenis penelitian deskriptif dengan pendekatan kuantitatif, yang dilakukan dengan tujuan untuk mengetahui peranan guru dalam mengatasi kesulitan belajar siswa keala XI IPS di SMA Negeri 1 Tambang Kabupaten Kampar. Penelitian ini dilaksanakan pada bulan Agustus 2019. Populasi penelitian ini berjumlah 283 siswa. Sampel penelitian adalah siswa kelas XI IPS di SMA Negeri 1 Tambang yang berjumlah 160 siswa. Instrumen yang digunakan dalam penelitian ini adalah kusioner dengan mengacu pada indikator peranan guru dalam mengatasi kesulitan belajar siswa. Indikator tersebut terdiri dari mencari tahu permasalahan dan faktor penyebabnya, melaksanakan tes, melakukan pertemuan dengan orang tua, menyediakan pembelajaran yang efektif, dan memberikan saran tentang kemungkinan cara mengatasinya. Berdasarkan hasil penelitian, dapat diambil suatu kesimpulan bahwa dari 5 indikator, indikator peranan guru dalam mengatasi kesulitan belajar siswa yang rendah skornya adalah melaksanakan tes sebesar 65,7%, sedangkan Indikator peranan guru dalam mengatasi kesulitan belajar siswa yang paling tinggi skornya adalah memberikan saran tentang cara mengatasinya sebesar 70,1%.
METHOD OF QUANTITATIVE ASSESSMENT OF THE SCIENTIFIC PLOT CITATION QUALITY
Authors: Лаврентьев Н.А. , Фазлиев А.З.
Published: March 2023

В докладе представлен метод количественной оценки качества цитирования научных графиков на примере собранной нами коллекции графических ресурсов в системе GrafOnto. В настоящее время коллекция содержит более 6000 примитивных графиков, большая часть которых входит в составные графики или составные рисунки. Среди этих графиков около полутора тысячи цитируемых. Для оценки качества цитирования нами предлагается количественная метрика среднего расхождения пары “цитируемый-цитирующий график”.

The paper describes an approach to quantitative assessment of the quality of scientific plots citation, on the example of our collection of graphical resources in the GrafOnto system. Currently the collection contains more than 6000 primitive plots, most of which are included in composite plots or composite figures. Among these plots are about 1,500 citations. To evaluate the quality of citation we propose a quantitative metric of average divergence of the pair "original-cited plot".
SOLVING ONE PRODUCTION SHCEDULING PROBLEM USING PARALLEL LOCAL SEARCH ALGORITHM ON GPU
Authors: Борисовский П.А.
Published: March 2023

Параллельные вычисления с использованием графических ускорителей вызывают большой интерес при решении задач дискретной оптимизации. Методы полного или частичного перебора для NP-трудных задач требуют большого объема вычислений, и в тех случаях, когда параллельная реализация метода оказывается возможной, эффект от применения графического процессора может быть очень значительным. Алгоритмы локального поиска обычно лучше всего подходят для распараллеливания, при этом они хорошо зарекомендовали себя с точки зрения качества получаемых решений. В данном докладе обсуждается реализация алгоритма локального поиска с многократным перезапуском для одной прикладной задачи составления производственных расписаний. Приводятся результаты экспериментов и их сравнение с другими подходами.

Parallel computing using graphics accelerators is of great interest in solving discrete optimization problems. Complete or partial enumeration methods for NP-hard problems require a large amount of computation, and in cases where the parallel implementation of the method is possible, the effect of using a GPU can be very significant. Local search algorithms are usually best suited for parallelization, and they perform well in terms of the quality of the resulting solutions. This paper discusses the implementation of a local search algorithm with multiple restarts for one scheduling problem. Experimental results and their comparison with other approaches are presented.
ON SOLVING APPRACHES FOR SCHEDULING PROBLEMS IN MULTIPROCESSOR COMPUTER SYSTEMS WITH PARALLELIZATION AND RESOURCE CONSTRAINTS
Authors: Захарова Ю.В.
Published: March 2023

Рассматриваются задачи составления расписаний для операций в многопроцессорных компьютерных системах. Для выполнения трудоемких вычислений современные компьютеры могут как использовать несколько процессоров одновременно, так и менять свои характеристики за счет потребления дополнительных ресурсов, к которым относятся энергия, температурные режимы, пропускная способность шины данных, кэш-память. В настоящей работе представлены подходы к решению таких задач, среди которых можно выделить методы выпуклого анализа, алгоритмы жадного типа и методы целочисленного и динамического программирования. Обсуждаются варианты улучшения расписаний за счет перераспределения ресурсов и распараллеливания.

We consider the problem of scheduling operations in multiprocessor computer systems. For performing intensive calculations, modern computers use both several processors simultaneously, and change characteristics by consuming such additional resources as energy, temperature conditions, data bus bandwidth and cache memory. We present approaches for solving these problems based on convex analyses, integer programming, dynamic programming and greedy methods. We discuss variants of improving schedules by means of resource reallocation and parallelization.
DETECTION OF CRACKS AND FLUSHINGS ON THE BOARDS OF COAL MINES USING HIGH RESOLUTION AERIAL IMAGES
Authors: Попов С. Е.
Published: March 2023

Представлена комплексная информационная модель и ее программная реализация, позволяющая автоматизировать процесс детектирования неоднородностей на изображениях, полученных с летательных аппаратов с фото/видео оборудованием для мониторинга геодинамического состояния объектов угледобычи. Информационная модель и ее программная реализация пред- и постобработки построены на основе аппарата сверточных нейронных сетей. Предложенный подход позволяет в процессе постобработки результатов вычислять количественные характеристики поверхностных неоднородностей (трещин, промывов, разрывов и пр.), что имеет практическое значение для определения механического поведения не сплошных массивов горных пород. Результаты исследования могут быть применены в задачах многоуровневой адаптивной семантической сегментации.

A complex information model and its software implementation is proposed, which makes it possible to automate the process of detecting heterogeneities in images, income from aircraft with photo / video, which are of interest for monitoring the geodynamic state of coal mining objects. Information model and its software implementation of preliminary and post-processing of constructions based on the apparatus of convolutional neural networks. The proposed approach makes it possible to calculate the quantitative characteristics of the frequencies of inhomogeneities (cracks, flushes, discontinuities, etc.) in the post-processing process, which is of practical importance for determining the mechanical behavior of non-continuous rock masses. The results of the study can be applied in the task of a multilevel semantic segmentation.
SCIENTIFIC INFORMATION-COMPUTATIONAL SYSTEM METEO+ FOR MODELING SHORT-TERM METEOROLOGICAL FORECASTS
Authors: Привезенцев А.И. , Старченко А.В. , Фазлиев А.З. , Стребкова Е.А. , Проханов С.А.
Published: March 2023

Доклад посвящен описанию технологии построения программного решения, автоматизирующего рутинные процессы, связанные с развитием оригинальных моделей TSUNM3 и CTM. Рассматриваемая прикладная научная информационно-вычислительная веб-система Метео+ предоставляет компьютерную поддержку научных исследований, в первую очередь, профессионалам в вычислительной геофизике, занимающимся разработкой и усовершенствованием собственных вычислительных моделей. При этом формируемая коллекция результатов моделирования позволяет привлекать уже других специалистов для детального анализа.

The report is devoted to describing the technology of building a software solution that automates routine processes related to the development of the original TSUNM3 and CTM models. The considered applied scientific information-computational web-system Meteo+ provides computer support of scientific research, first of all, to professionals in computational geophysics who are engaged in development and improvement of their own computational models. At the same time, the formed collection of modeling results allows to involve already other specialists for detailed analysis.
RECOGNITION OF ASPEN AND BIRCH PLANTS ON UAV RGB IMAGES USING DEEP LEARNING
Authors: Калашников Р.А. , Пестунов И.А. , Ермаков Н.Б. , Радчиков А.Н.
Published: March 2023

Исследуется возможность автоматического выделения и классификации осиновых и березовых насаждений на RGB-изображениях сверхвысокого пространственного разрешения, полученных с беспилотного летательного аппарата (БПЛА). Показано, что применение сверточной нейронной на основе архитектуры U-Net позволяет достичь значения индекса Жаккарда ~0,784.

The possibility of automatic selection and classification of aspen and birch plantations on ultra-high spatial resolution RGB images obtained from an unmanned aerial vehicle (UAV) is investigated. It is shown that the use of a convolutional neural network based on the U-Net architecture makes it possible to achieve the value of Jacquard index ~0,784.
Dérives inconditionnelles vs dérives sous condition (ville libre et ville carcérale)
Authors: ARDENNE Paul
Published: March 2023

L’objet de cet article est d’interroger ce qu’on nommera le « coefficient de déplacement libre » de l’usager des villes contemporaines. L’espace public urbain, loin d’être l’espace du public, se voit peu à peu confisqué de toutes parts. Privatisé, publicitarisé, toujours plus fourni en circuits balisés qui orientent le déplacement du citadin (piétonnisation, périmètres d’attraction, survalorisation des espaces patrimoniaux…), vidéosurveillé et soumis à l’œil sécuritaire et à la culture de la « vigilance », il tend à constituer une forme de zone carcérale douce. De quoi interdire toujours plus le libre usage de la circulation et de l’exploration, sauf à recourir à l’illégalité (parkour, urbex, cataphilie, flash mobs clandestins, rave parties, création de Zones d’Autonomie Temporaire illicites…). « Un jour », écrivait, il y a cinquante ans, Guy Debord, militant de la dérive urbaine libre, « on construira les villes pour dériver ». C’est très exactement l’inverse qui s’est produit, sur fond d’affaiblissement graduel, continu et politiquement concerté du « coefficient de déplacement libre ».
Monterrey, una cartografía sórdida del crimen: la ciudad como personaje en El asesinato de Paulina Lee de Hugo Valdés
Authors: TORRES TORIJA Mónica
Published: March 2023

Los espacios urbanos han cobrado una dimensión significativamente simbólica en las formas literarias contemporáneas, en donde la ciudad interactúa, afecta y modifica el devenir metafísico urbano. La reflexión que gira en torno a la ciudad como espacio narrativo no se limita únicamente a un inventario de lo espacial o referencial, sino que entiende a la ciudad como una elaboración sensible de la sociedad contemporánea. Las tensiones y resonancias de la vida en la ciudad construyen los imaginarios sobre los que se fundamenta la experiencia urbana. En El asesinato de Paulina Lee (2016) del escritor regiomontano Hugo Valdés, el espacio urbano de Monterrey, Nuevo León, desempeña un rol protagónico. En este ensayo se analizará la cartografía urbana como retrato de una ciudad que se adentró en la modernidad industrial del siglo XX y cuya expansión acelerada dio lugar a un territorio fragmentado por la desigualdad económica en donde predominaron la marginalidad, la pobreza y la violencia.
Synthetic strategies and self-assembly properties of thiophene-functionalized hydrogen-bonded diketopyrrolopyrrole derivatives
Authors: Ruiz Carretero Amparo , Avila Rovelo Nelson Ricardo , Martinez Gabriel
Published: March 2023

The optoelectronic properties of thiophene-capped diketopyrrolopyrrole (DPP) derivatives can be tuned by adding differ-ent electroactive moieties to the main central core or by regulating their self-assembly through the interplay of noncova-lent interactions. While the alkylation of the DPP lactam rings is common, the alkylation of the thiophene rings on the DPP extremities is challenging, especially when supramolecular moieties are incorporated. Here we report an efficient synthetic method towards the thiophene functionalization with amide-containing substituents of single core thiophene-capped DPP derivatives.
Constructing Narrowband Heavy Metal Platinum (II) Complex by Integrating Multiple Resonance Molecular System
Authors: Feng Yu , Zhuang Xuming , Xu Yincai , Xue Jianan , Wang Qingyang , Liu Yu , Wang Yue
Published: March 2023

The narrowband emission required by wide color gamut display is an extremely important research topic for any luminescence mechanism, which has made significant progress in traditional fluorescence and thermally activated delayed fluorescence (TADF) based on purely organic compounds, but is far from mature in phosphorescence based on metal organic complexes. Herein, we propose a feasible molecular design paradigm for constructing the desirable narrowband-emission organic electroluminescence (EL) emitter by integrating an original multi-resonance thermally activated delayed fluorescent (MR-TADF) fragment into the classical heavy metal platinum (II) complex. The target model platinum (II) complex BNCPPt shows green emission with a single peak at 497 nm and the quite narrow full-width at half-maximum (FWHM) of 27 nm in toluene.
NMR AS A TOOL FOR COMPOUND IDENTIFICATION IN MIXTURES
Authors: Moreira Borges Ricardo , de Assis Ferreira Gabriela , Martins Campos Mariana , Magno Teixeira Andrew , das Neves Costa Fernanda , Oliveira das Chagas Fernanda , Colonna Maxwell
Published: March 2023

Natural products and metabolomics are intrinsically linked by the efforts of analyzing complex mixtures for compound annotation. Although most of the studies that aims for compound identification in mixtures use MS as the main analysis technique, NMR has complementary advances that are worth exploring for enhanced structure confidence. This review intends to showcase a portfolio of the main tools available for compound identification using NMR. COLMAR, SMART-NMR, MADByTE, and NMRfilter are presented using examples collected with real samples from the perspective of a natural products chemist.
Defibrotide impact on the acute GVHD disease incidence in pediatric hematopoietic stem cell transplant recipients
Authors: Squillaci Domenica , Marcuzzi Annalisa , Rimondi Erika , Riccio Guglielmo , Barbi Egidio , Zanon Davide , Maximova Natalia
Published: March 2023

Despite advances in acute graft-versus-host disease (aGVHD) prophylaxis, current pharmacological approaches fail to prevent aGVHD. The protective effect of defibrotide on GVHD incidence and GVHD-free survival has not been sufficiently studied. 91 pediatric patients included in this retrospective study were divided into two groups based on defibrotide use. We compared the incidence of aGVHD and chronic GVHD-free survival between the defibrotide and control groups. The incidence and severity of aGVHD were significantly lower in patients who received defibrotide prophylactic administration than in the control group. This improvement was observed in the liver and intestinal aGVHD. No defibrotide prophylaxis benefit was observed in the prevention of chronic GVHD. The pro-inflammatory cytokine levels were significantly higher in the control group. Our findings suggest that prophylactic administration of defibrotide in pediatric patients significantly reduces the incidence and severity of aGVHD, with a modification of cytokine pattern, both strongly coherent with the protective drug’s action. This evidence adds to pediatric retrospective studies and preclinical data suggesting a possible defibrotide role in this setting.
Integrated green extraction method in enhancing total phenolic content and
antioxidant activities of Heterotrigona itama propolis
Authors: A. Nur Diyana , M.Z. Nurin Izzati , N.Z.N. Hasnan , Koh S.P. , Mansor A. , Jajuli R.
Published: March 2023

Propolis, a natural resinous by-product from the beehive, has captured researchers' interest
due to the presence of its rich phytonutrient properties, including antioxidant, antiviral,
antifungal antibacterial, and anti-inflammatory effects. With the increased awareness of
environmental protection, there is a high demand for a greener alternative to extraction
methods from natural sources. In the present study, several extraction methods have been
tested to enhance the total phenolic content and antioxidant activities of the Heterotrigona
itama propolis extract: a) thermal extraction, b) enzyme-assisted extraction, and c)
combination of thermal and enzyme-assisted (TE) extraction. Total phenolic content
(TPC) was determined using the Folin-Ciocalteu method, while the antioxidant activities
were analysed using ferric reducing antioxidant power (FRAP) and 2,2-diphenyl-1-
picrylhydrazyl (DPPH) free radical scavenging assay. Generally, the TE extraction has
increased the total phenolic content and antioxidant activities of propolis extract compared
to the single extraction technique. The TE propolis extract showed the highest total
phenolic content and DPPH free radical scavenging activities at 194.03±4.40 mg GAE/g
and 90.95±1.69 mg AAE/g, respectively. Meanwhile, the thermal treatment of propolis
extract obtained the highest FRAP value of 136.34±3.04 mg AAE/g. Conversely, enzymeassisted propolis extract showed the lowest total phenolic content (35.95±2.32 mg GAE/g)
and antioxidant activities (FRAP value, 43.45±0.67 mg AAE/g; DPPH value, 26.73±0.94
mg AAE/g). These findings indicated that the combination of thermal and enzymeassisted (TE) technique is a highly efficient extraction method
High barrier green food packaging materials from composites hybridization
Authors: Zakaria N.E. , Ahmad I. , Busu W.N.W. , Ismail N. , Mohamed W.Z.W. , Baharum A.
Published: March 2023

This research was done to study the effects of chemical modification on the mechanical,
thermal and hydrophobic properties of treated Sansevieria trifasciata fibre (STF) in
hybridized polymer composites. Processing of the composites was done by using an
internal mixer machine. The processing parameters used were 135°C for temperature and
a mixing rotor speed of 55 rpm for 15 mins. Filler loading was varied from 10% to 40% of
STF and the fibre size used was 125 µm. The composite blends obtained then were
pressed with a hot press machine to get samples for testing. Samples were evaluated via
tensile tests, water absorption tests, water contact angle tests, antioxidant activity and
scanning electron microscopy (SEM). Results showed that chemical modification by using
silane-coupling agent has improved tensile strength, strain values and decreased water
absorption of the treated composites. Antioxidant activity in treated fibre was also higher
than untreated fibre, due to the removal of the impurities during the treatment. SEM
micrographs have proven that the treated fibre has produced a rougher surface for more
inter-facial interactions between fibre and matrix. Treated composites have given higher
contact angle values compared to untreated composites and polymer matrix, contributed
by the increment of the hydrophobic surface of the materials. From the results obtained,
the treated composites have the potentials to be applied as packaging films to prolong the
shelf life of food products due to their high barrier properties to water and moisture, even
higher than typical packaging plastic (i.e HDPE). Materials obtained are also suitable for
natural antioxidant packaging film and biodegradable packaging applications.
The antioxidant and anti-ageing activity of lyophilisate kersen (Muntingia calabura L) fruit in vitro
Authors: Nur S. , Aswad M. , Yulianty R. , Burhan A. , Khairi N. , Sami F.J. , Nursamsiar
Published: March 2023

Kersen fruit (Muntingia calabura L.) is a wild plant used as food and used in medicine.
This study aimed to determine the bioactivity of Kersen fruit as a candidate for active
ingredients in cosmetics. Preparing the lyophilisate of kersen fruit was carried out through
the lyophilization method using a freeze dryer. The lyophilisate of the Kersen fruit was
then analyzed for its antiradical activity using the DPPH, ABTS radical scavenger, and
FRAP reduction methods. The anti-ageing activity was evaluated using Elastase and
Collagenase inhibition and fibroblast cell proliferation by the MTT method. The result
showed that the lyophilisate of kersen fruit can inhibit DPPH, ABTS radical, and ferric
reduction assay with strong activity. Lyophilisate of kersen fruit can interfere with
Elastase and Collagenase activity with IC50 of 21.67 and 180.61 µg/mL, respectively. The
results of the fibroblast cell proliferation activity showed that the lyophilisate sample
could protect and increase the viability of fibroblast cells after exposure to H2O2 (IC90
value of 773.24 µg/mL). Based on these results, it can be concluded that Kersen fruit can
be developed as an active ingredient in anti-ageing cosmetics.
Hospital-based case–control study of risk factors of early neonatal mortality in the Gaza Strip
Authors: El Najar Asma , Abu Hamad Khitam
Published: March 2023

Background: Early neonatal death is an essential epidemiological indicator of maternal and child health. Aims: To identify risk factors for early neonatal deaths in the Gaza Strip. Methods: This was a hospital-based case–control study. We included 132 women with neonatal deaths recorded from January to September 2018. The control group comprised 264 women who were selected using systematic random sampling and gave birth to live newborns at the time of the data collection. Results: The controls who had no history of neonatal death or still birth were less likely to have an early neonatal death compared with women who did have such a history. The controls who did not have meconium aspiration syndrome or amniotic fluid complications were less likely to have an early neonatal death compared with women who did experience these complications during delivery. The controls who had a singleton birth outcome were less likely to have an early neonatal death compared with women who had multiple births. Conclusion: It is important to establish intervention programmes to provide preconception care, improve the quality of intrapartum and postnatal care, provide high-quality health education, and improve the quality of care provided within neonatal intensive care units.
Effects of Overweight and Obesity on Hypertension in Adolescents: A Meta-Analysis
Authors: Zaen Nurussyifa Afiana , Tamtomo Didik , Ichsan Burhannudin
Published: March 2023

Background: Hypertension is currently starting to show a trend in prevalence that continues to increase at a younger age and is a major cause of premature death in the world. In adolescents, hypertension is more common who are overweight or obese. This study aims to examine the effect of overweight and obesity on the incidence of hypertension in adolescents using a meta-analysis.Subjects and Method: Meta-analysis was carried out using the PRISMA flow chart and the PICO model. Population: adolescents aged 10 to 19 years. Intervention: overweight and obesity. Comparison: normoweight. Outcome: hypertension). The databases used are PubMed, Science Direct, Springer Link, and Google Scholar with the keywords (hypertension OR "High Blood Pressure") AND "BMI Status" AND (adolescent OR teenager) AND "cross sectional". There were 9 cross-sectional studies published in 2012-2022 with odds ratio (OR) effect size that met the inclusion criteria. Analysis was performed with RevMan 5.3.Results: A meta-analysis was conducted on 9 articles with a cross-sectional study design originating from China, South Korea, India, Turkey, Tunisia, Lithuania and Poland involving 63,239 adolescents aged 10-19 years. The results of the meta-analysis showed that overweight adolescents were 2.44 times more likely to experience hypertension compared to normal weight adolescents (aOR= 2.44; 95%CI= 1.87 to 3.19; p<0.001), and obese adolescents were more likely to experience hypertension 4.53 times compared with normal weight adolescents (aOR= 4.53; 95% CI= 3.10 to 6.61; p<0.001).Conclusion: Being overweight and obese can increase the risk of developing hypertension in adolescents.
Keywords: overweight, obesity, hypertension, adolescents, meta-analysis
Correspondence: Nurussyifa Afiana Zaen. Masters Program in Public Health, Universitas Sebelas Maret. Jl. Ir. Sutami 36A, Surakarta 57126, Central Java, Indonesia. Email: nurussyifaaz20@gmail.com. Mobile: +6287723131415.
Ilusión de profundidad explicativa, un estado del arte
Authors: Arango Muñoz Santiago
Published: March 2023

La ilusión de profundidad explicativa (ipe) es uno de los fenómenos que ha despertado gran interés en la ciencia cognitiva en los últimos veinte años. Sucede cuando la persona cree poder explicar un fenómeno mejor de lo que realmente puede explicarlo. A continuación, se hará una reconstrucción histórica de los estudios de la IPE a lo largo de las últimas décadas, dando cuenta de su actualidad e importancia. Primero se presentarán los antecedentes y los estudios fundantes de este tema de investigación. A continuación, se expondrán las investigaciones iniciales (años 2002-2015), y la manera como prosiguió la indagación con cuestionamientos y soluciones a la IPE (años 2016-2021). Finalmente, se analizará la relación entre la ipe, las fake news y el internet.
Editorial
Authors: Lousada Isabel , Civiliene Gabriele , Schuster Kristen
Published: March 2023

Editorial
EVALUATION OF THE STATISTICAL SIGNIFICANCE OF COMPACTIVE EFFORTS, SLAG AND CEMENT ON THE GEOTECHNICAL FEATURES OF LATERITE SOIL
Authors: ADEDOKUN SOLOMON IDOWU , APATA AKINDELE CHRISTOPHER , OGUNDALU ADEWALE OLUKAYODE , OLUREMI JOHNSON ROTIMI , OYINLOLA ADESOKAN , FAGBENRO OLUKEMI KEHINDE , IGE OSEPH ADEBAYO , ADEWOYE ABOSEDE OLUFUNMI
Published: March 2023

This study investigated the statistical significance of compactive efforts, steel slag and cement on the geotechnical features of the laterite soil. Steel slag and cement were incorporated into the soil. Some geotechnical tests were performed on slag-cement-soil samples. Findings showed that the liquid limit (LL) and plasticity index (PI) decreased with increasing slag content, while cement addition increased LL and PI. As compactive efforts increased, MDD and CBR increased with a corresponding decrease in OMC. A more significant influence of the compactive effort and steel slag on the geotechnical features of the laterite than that of cement was observed.
CYBER SECURITY ANALYSIS OF IOT DEVICES TRANSMITTING DATA IN THE THINGSPEAK PLATFORM CLOUD
Authors: ANDRIOAIA DRAGOS-ALEXANDRU
Published: March 2023

The IoT platforms have started to be used more and more due to numerous applications in which they can be used. With the growth of devices that transmit data to the cloud of IoT platforms, security challenges have also emerged. The security of IoT platforms can be analysed, identifying vulnerabilities to attacks on each layer of the IoT architecture. In this paper, the authors test, through an active sniffing attack, the cybersecurity of the IoT devices that transmit data to the Cloud of the ThingSpeak platform. Through this attack, it will analyses whether IoT devices send the data to the ThingSpeak platform’s cloud in the clear, without encrypting it.
SOME COMPARATIVE OPINIONS REGARDING THE EVALUATION OF MAXIMUM STRESSES IN LONG FIBER REINFORCED COMPOSITES
Authors: IATAN RADU I. , SPOREA NICOLETA , POPA CARMEN T. , ENACHESCU LUMINITA GEORGIANA , CIOCOIU COSMIN , CORLECIUC (MITUCA) MELANIA , NITU ANDREEA - SILVIA
Published: March 2023

This paper falls within the scope of current concerns for scientific and technical research, relating to technical structures made of composite materials, recognized for their mechanical, thermal and chemical or erosive resistance characteristics. In this case, the study is characterized by the analysis of the bearing capacity of some composites: a) with fibers applied along them, b) in a certain direction, c) in a direction perpendicular to the fibers, d) the stability of the structure along the fibers, e) in a direction perpendicular to the fibers or f) combined stress.
MITIGATING EFFECTS OF VOLTAGE DEVIATION ON DELSUTH HEALTH CARE FACILITY UTILIZING DYNAMIC VOLTAGE RESTORER (DVR)
Authors: PATRICK UMUKORO ARIEYERI , OSHEVIRE PATRICK
Published: March 2023

This paper examined power supply at DELSUTH with the aim of mitigating effects of voltage deviation. The 11KV feeder from 7.5MVA substation which supplies the Hospital was analyzed using Dynamic Voltage Restorer (DVR) device on ETAP 16.0 software environment. It was observed that load flow analysis is vital in understanding the operating nature of the network, by considering the reactive power, voltage deviation magnitude and power losses in the network. From the simulation there was low voltage profile in the transformers feeding the clinical area. The voltage profile was improved by upgrading the network to standard power factor.
Mucin expression in liver cancer
Authors: Kuznetsov O. E. , Tsyrkunov V. M. , Kerimova S. Sh.
Published: March 2023

Increasing incidence, difficulties in early diagnosis, and a high mortality rate in liver cancer (LC) determine the relevance of studying the mechanisms of its development. The aim of the work is to evaluate the expression of high molecular weight glycoproteins MUC-1, MUC-13 in liver cancer. The object of study is LC tissue samples of 65 patients from the archives and 34 blood serum samples from patients with morphologically confirmed LC. The age of subjects was 26– 97 years. The level of antibodies to MUC-1 and MUC-13 was studied by ELISA. The reference value ranges of MUC-1 (0.250 ± 0.10 ng/ml) and MUC-13 (0.321 ± 0.13 ng/ml) in the blood serum of healthy individuals were established. The concentration of antibodies to MUC-1 and MUC-13 in the blood serum in RP was significantly higher than that in practically healthy individuals. The concentration of MUC-1 and MUC-13 in the LC tumor tissue was higher than that in the blood serum of apparently healthy individuals and LC patients. With a confirmed LC diagnosis, the level of antibodies to MUC-1 in the blood serum, which exceeds 0.373 ng/ml, and the level of antibodies to MUC-13, which is more than 0.939 ng/ml, may indicate a high risk of a tumor process.
Improving the accuracy of short-term numerical weather forecasts for the territory of Belarus using the mesoscale WRF model and earth remote sensing data
Authors: Lysenko S. A. , Zaiko P. O.
Published: March 2023

The problem of improving the WRF numerical weather model performance for the territory of Belarus by assimilating the Earth remote sensing data is considered. It is shown that for the winter period, the use of satellite data of high spatial resolution, including on the structure of land use , albedo, leaf index and photosynthetically active radiation absorbed by the underlying surface can reduce a root-mean-square error of the short-term forecast (up to 48 h) of the air surface temperature by 0.53–1.11 °С. For the summer period, on the basis of numerical experiments the optimal correction factor for the land surface albedo was estimated. This made it possible to reduce a root-mean-square error of temperature forecast at the meteorological stations of Belarus for the lead time of +12, +24, +36, and +48 h by an average of 0.30 °С, 0.10 °С, 0.15 °С, and 0.16 °С, respectively.
Influence of polymer and inorganic modifiers on the process of phase formation in potassium sulfate saturated solutions
Authors: Сherednichenko D. V. , Vorobiev P. D. , Shevchuk V. V. , Vorobiev A. D. , Potkina T. N. , Layevskaya E. V.
Published: March 2023

The process of potassium sulfate crystallization from aqueous solutions in the presence of organic modifiers containing phosphonic, phosphate, sulfonic, sulfate and carboxyl functional groups has been studied. It is shown that the introduction of organic substances has an inhibitory effect on the formation of potassium sulfate crystals. Modifiers containing sulfonic, sulfate and phosphonic functional groups have the greatest inhibitory effect. The effectiveness of modifiers containing carboxyl groups is significantly lower. The formation of stable supersaturated solutions of potassium sulfate is achieved by introducing organic modifiers in an amount of 0.25 – 0.50%.
Synthesis of new imides and imidoamides of citraconopimaric acid
Authors: Bei M. P. , Yuvchenko A. P.
Published: March 2023

For the first time, a method has been developed for the synthesis of aromatic imides of citraconopimaric acid by the interaction of primary aromatic amines (aniline, p-toluidine) and citraconopimaric acid in p-xylene at reflux. New aliphatic imides have been synthesized by the reaction of citraconopimaric acid and primary aliphatic amines (octyl-, octadecylamine) in a melt at 125–150°C. For the first time, the synthesis of citraconopimaric acid imidoamides was developed by treating citraconopimaric acid N-octylimide with thionyl chloride and subsequent reaction of the resulting acid chloride with primary aromatic amines (aniline, p-bromoaniline). A method has been developed for the synthesis of aliphatic imides of the rosin-citraconic adduct (in the form of technical products) by its interaction with primary aliphatic amines (octyl- and octadecylamine) at 180–200°C for 8–12 hours.

Together with Belarusian state technological university, the relationship between the structure of imides of rosin-citraconic adducts as modifiers of unfilled and filled industrial rubber compounds was studied, and the obtained additives were found to improve the technological properties of compositions while maintaining, and in some cases improving physical and mechanical parameters (increasing the resistance of compositions to thermal aging, bond strength of the cord with rubber, etc.).
Heating value of agricultural biomass: the basic value and intervals for certain types
Authors: Maksimuk Yu. V. , Kursevich V. N. , Korsakova A. S. , Antonova M. V. , Krouk V. S.
Published: March 2023

Higher heating value (HHV) on a dry and ash free basis (daf) is a convenient platform for comparing the energy content in various types of agricultural biomass. HHV and ash content for 90 samples of straw, seed, husk, meal, its waste, etc. were experimentally determined. HHVdaf for 80 samples from different regions were calculated by the literature data. The basic value of HHVdaf agricultural biomass at 19.6 MJ kg–1 was recommended for verifying data on solid biofuels. The intervals of variation of HHVdaf for sugar beet pulp, straw, meal, flax shives and sunflower husk are established. The deviations from the base value of HHVdaf and from intervals of variation of HHVdaf for certain types of agricultural biomass are discussed.