bluuebunny/crossref_metadata_2025_split huggingface dataset:
Efektivitas Antibakteri Kurkumin dan Asam Tanat terhadap Staphylococcus aureus dan Escherichia coli in vitro
Authors: Sardjiman  , Rahardjoputro Rolando , Santoso Joko , Ernawati  , Widyaningrum Nova Rahma 
Published: April 2024

Some bioactive compounds were isolated and identified from medicinal herbs. Some of bioactive compounds have been used for both health and science. Curcumin and tannic acid are active compounds with antibacterial activity against S. aureus and E. coli. This research aims to determine the antibacterial effectiveness of curcumin and tannic acid against S. aureus and E. coli in vitro. This research is quantitative research with experimental research methods. The antibacterial sensitivity test was carried out in vitro using the Kirby-Bauer disc method. The positive control is the antibiotic ciprofloxacin 50 μg/ml, and the negative control is the DMSO 1% solution. Data analysis used Kruskal-Wallis Test. The research showed that tannic acid 2% provides an average inhibitory zone of 25 mm compared to curcumin (19.67 mm) against S. aureus. Tannic acid 2% provides an average inhibitory zone of 15 mm compared to curcumin (7 mm) against Escherichia coli. Statistical analysis shows a difference in antibacterial effectiveness between tannic acid and curcumin in S. aureus (p-value 0,034) and E. coli (p-value 0,025). The coclusion in this research is tannic acid compounds had stronger bacterial activity against Staphylococcus aureus and Escherichia coli in vitro than curcumin compounds

ABSTRAK
Senyawa aktif berhasil diisolasi dari tumbuhan obat sudah banyak ditemui sekarang ini. Beberapa diantaranya telah digunakan untuk kesehatan maupun pengembangan ilmu pengetahuan. Kurkumin dan asam tanat diketahui mempunyai aktivitas antibakteri terhadap S. aureus dan E. coli. Tujuan penelitian ini adalah mengetahui efektivitas antibakteri kurkumin dan asam tanat terhadap S. aureus dan E. coli secara in vitro. Penelitian ini adalah penelitian kuantitatif dengan metode penelitian eksperimental. Uji sensitivitas antibakteri dilakukan secara in vitro dengan metode cakram disc Kirby-Bauer. Kontrol positif yaitu antibiotik siprofloksasin 50 μg/ml dan kontrol negatif larutan DMSO 1%. Analisa data menggunakan uji Kruskal-Wallis. Hasil penelitian menunjukkan asam tanat pada konsentrasi 2% memberikan daya hambat rata – rata 25 mm dibandingkan kurkumin yaitu 19,67 mm terhadap S. aureus. Asam tanat pada konsentrasi 2% memberikan daya hambat rata – rata 15 mm dibandingkan kurkumin yaitu 7 mm terhadap E. coli. Hasil uji statistik menunjukkan bahwa terdapat perbedaan efektivitas antibakteri antara asam tanat dengan kurkumin pada S. aureus (p-value 0,034) dan E. coli (p-value 0,025). Kesimpulan penelitian ini adalah asam tanat mempunyai aktivitas bakteri yang lebih kuat terhadap bakteri S. aureus dan E. coli dibandingkan kurkumin secara in vitro
Pengembangan Kemampuan Life Skills Siswa dengan Penerapan Model Problem Based Learning
Authors: Mufrihah Arina , Rusmiyati Rusmiyati , Prasetyo Adirasa Hadi , Mafruhah Mafruhah 
Published: April 2024

This research aims to improve one of the student's life skills using Problem Based Learning (PBL) model. It applied a classroom action research design (PTK) which was carried out for three cycles. The PBL model used in this study is integrated into Civics subjects by looking at the accompanying impact, not the instructional impact of Civics learning. This study implemented observation as the instrument of research. Through not only the result of the observation sheet from the student direct life skills aspects which the action research was carried out but also observe the teacher activity using the PBL model and the student responses in using those aforementioned model. The technique used to analyze the data is divided into two techniques that are both qualitative and quantitative data analysis. The results showed that the application of the PBL model could not develop the students' life skills aspects.
COMPARAÇÃO VISUAL DE BIOPLÁSTICO DE AMIDO DE MILHO COM E SEM ADIÇÃO DE NANOCELULOSE DA PSEUDOCAULE DE BANANEIRA
Authors: Carvalho da Silva Laura , Vieira Dias Ítalo 
Published: April 2024

O estudo da produção de bioplástico de amido de milho é uma alternativa para a substituição de filmes ou plásticos originados de fontes não biodegradáveis e não renováveis. Assim, o objetivo deste artigo é analisar visualmente o bioplásticos que tem como princípio-ativo o amido de milho, através da adição de nanocelulose de fibras de pseudocaule de bananeira, a fim de atingir um bioplástico com melhores características visuais. A pseudocaule foi submetida ao processo de corte, secagem, trituração, branqueamento, explosão de vapor e hidrólise ácida com ácido oxálico, a fim de obter um fino material particulado. Para a formulação final do bioplástico com acréscimo de nanocelulose, testou-se teores de 1% e 0,5% de material celulósico e 4% e 5% de amido de milho. Ao fim obteve-se um filme plástico que apresentou melhores características com teores de 1% de nanocelulose e 5% de amido de milho ao comparar com o filme plástico que não contém o acréscimo de material celulósico. Após publicado, o presente trabalho busca contribuir técnica e cientificamente para a área de estudo e redução dos danos ambientais causados pelos polímeros convencionais presentes no comércio atual.
VARIABLE SELECTION METHODS APPLIED IN HTGC DATA TO DETERMINE PHYSICOCHEMICAL PROPERTIES OF CRUDE OILS
Authors: De Paulo Ellisson Henrique , Dos Santos Francine Dalapícola , Folli Gabriely Silveira , Nascimento Márcia Helena Cassago , Moro Mariana Kuster , Cunha Pedro Henrique Pereira da , Silva Samantha Ribeiro Campos da , Castro Eustáquio Vinícius Ribeiro de , Cunha Neto Alvaro , Filgueiras Paulo Roberto , Ferrão Marco Flôres 
Published: April 2024

High-temperature gas chromatography (HTGC) is an analytical technique employed in the petroleum industry for component separation. By incorporating chemometrics, HTGC data can be effectively utilized to predict various properties of crude oil. However, HTGC chromatograms generate a substantial number of variables, some of which may lack pertinent chemical information. Consequently, employing variable selection methods becomes crucial to reduce the number of variables and enhance the predictive capability of calibration models. In this study, the interval partial least squares (iPLS), synergy interval partial least squares (siPLS), and ordered predictors selection (OPS) methods were applied for variable selection to construct linear regression models. The main objective was to investigate the potential of these methods in predicting eight properties of crude oil: American Petroleum Institute (API) gravity, standardized kinematic viscosity at 50 °C (VISp), flash point (FP), Reid vapor pressure (RVP), micro carbon residue (MCR), saturates (SAT), aromatics (ARO), and polar (POL) content. While all variable selection methods yielded satisfactory results, the OPS-PLS regression models consistently exhibited the best performance in estimating these properties, achieving root mean squared error of prediction (RMSEP) values of 1.244 for API, 0.029 for VISp, 15.356 °C for FP, 0.324 kPa for RVP, 0.629 wt% for MCR, 3.691 wt% for SAT, 2.939 wt% for ARO, and 3.374 wt% for POL. Variable selection demonstrated remarkable effectiveness, significantly improving the accuracy of the models, and allowing for the creation of concise models with a focused set of variables.
NÍVEL DE CONHECIMENTO DOS INVESTIMENTOS FINANCEIROS DOS ALUNOS DO IFES CAMPUS LINHARES
Authors: Bertholini Pianca Osmar , Reboli de Bruym Arielli , De Souza Reis Julia , Rodrigues Campe Julia 
Published: April 2024

Este estudo busca identificar o nível de conhecimento dos investimentos financeiros dos alunos do Ifes campus Linhares, visto que tal conhecimento pode ser um diferencial na escolha de um produto financeiro mais rentável. A pesquisa usada no estudo é bibliográfica, por consultar artigos e livros que falam sobre investimentos financeiros e a técnica para obtenção dos dados a serem analisados pela pesquisa é aplicação de questionários junto aos alunos. Os dados obtidos através da coleta identificaram que quase metade dos alunos do Ifes campus Linhares, especificamente 42,1% dos respondentes da pesquisa, afirmam ter um baixo conhecimento a respeito do nível de conhecimento dos investimentos financeiros. Quando questionados sobre o conhecimento do mercado de renda fixa, 41,3% indica ter um baixo conhecimento, enquanto para o mercado de renda variável 42,6% também indicam baixo conhecimento. A partir da pesquisa, portanto, verifica-se que há a necessidade da aplicação de conhecimentos relacionados a investimentos financeiros nas instituições de ensino do IFES e possivelmente nas escolas em geral.
Description of The Management of A Normal Newborn 0-6 Hours In The Baby Mrs “I” At TPMB Sayang Ibu
Authors: Nur Ainun  , Qiswah Tetti Surianti , Eka Wulansari  , Marhumi  , Musfirah  
Published: April 2024

Newborn (BBL) is a baby born with head presentation with a gestational age of 37 to 42 weeks, without the help of a device with a birth weight of 2500 to 4000 grams, no congenital defects, apgar score 7 (Reza, 2022). Based on the Sustainable Development Goals (SDGs) in the third goal on health and welfare, the infant mortality rate in Indonesia in 2020 is 24 per 1000 live births. Objective: Describe the management of normal newborns 0-6 hours on Mrs. "I" babies at TPMB dear mother Sengkang Wajo Regency.Method: This case study uses a qualitative descriptive case study design which is carried out with an observational survey to describe facts about a situation objectively.
Results: From the results of research that has been conducted on ny "I" babies regarding the management of normal newborns 0-6 hours, namely umbilical cord cutting, apgar score assessment, IMD, Vit K injection, eye ointment, physical examination, immunization of hebatitis B and prevention of heat loss. Conclusion: The picture of normal newborn management of 0-6 hours in baby ny "I" has been done well. The care provided are: umbilical cord cutting and umbilical cord treatment, apgar score assessment, IMD, Vit K administration, eye ointment administration, physical examination, HB 0 administration and heat loss prevention.
The Effect of Warm Compress Hydrotherapy Technique Towards The Intensity of The First Active Stage In Labor Pain For Inpartu Mothers at Herlang Public Health Centre of Bulukumba Regency in 2023
Authors: Syam Nurul Fitri Sugiarti , Marlina Azis  
Published: April 2024

Almost all inpartum mothers experience labor pain, but each mother has a different intensity. Psychology of mothers during childbirth and support from people around during the labor process can affect the intensity of labor pain. When labor pain can not be handled properly, it can make the mother stressed and can hinder the birth process itself.
This research aimed to know the effect of warm compress hydrotherapy technique towards the intensity of the first active stage in labor pain for inpartum mothers at Herlang Public Health Centre of Bulukumba Regency in 2023.
This research was a quasi-experimental, namely non-equivalent control group. The sample of this research was inpartu mothers using purposive sampling technique consisting of 30 respondents. Data were analyzed by using univariately in a frequency distribution and bivariate to test the relationship between variables by testing Wilcoxon in the pre - post group and the Mann-Whilney test in the control intervention group.
The results showed that in the control intervention group using the Mann-Whitney U test was obtained was (0.000 <0.05) and the pre post intervention control group using the Wilcoxon test was obtained value (0.000 0.05).
The conclusion in this research there is an effect effect of warm compress hydrotherapy technique Towards the intensity of the first active stage in labor pain for inpartum mothers. It is expected to health workers can apply warm compress hydrotherapy techniques to reduce the intensity of labor pain.
Meningkatkan Hasil Belajar Murid Pada Pelajaran Matematika Di Kelas Ii Melalui Pendekatan Diskusi Yang Menyenangkan
Authors: Hanuni Hanuni 
Published: April 2024

Tujuan penelitian untuk meningkatkan hasil belajar siswa pada pelajaran Matematika di Kelas II melalui pendekatan pembelajaran diskusi yang menyenangkan di MIN Kota Jambi Tahun Pelajaran 2022/2023. Metode penelitian yang digunakan dalam penelitian adalah Metode Penelitian Tindakan Kelas dengan menggunakan 2 siklus. Subjek penelitian ini adalah siswa Kelas II MIN Kota Jambi sebanyak 30 orang. Instrumen pengumpulan data yang digunakan untuk memperoleh data dalam penelitian ini adalah menggunakan test, angket dan observasi . Teknik analisa data menggunakan perhitungan jumlah nilai yang diperoleh siswa dibagi jumlah nilai total dikalikan dengan seratus kemudian perhitungan data menggunakan pengelompokan nilai rata -rata siswa, persentase siswa yang tuntas dan persentase jumlah siswa yang belum tuntas. Hasil Penelitian menunjukkan terdapat peningkatan hasil belajar Matematika dengan menerapkan pendekatan Diskusi yang menyenangkan hasil sebagai berikut: Terdapat peningkatan rata-rata hasil belajar murid, dimana pada tes pertama rata-rata hasil belajar murid adalah 39.00, pada tes kedua meningkatkan menjadi 48.00 % kemudian pada ketiga meningkat lagi menjadi 63.00 %. Terdapat peningkatan jumlah murid yang tuntas, dimana pada tes pertama jumlah siswa yang tuntas hanya 0%, meningkat menjadi 53.00% pada tes ketiga meningkat lagi menjadi 85,00 % pada tes kedua .Terdapat penurunan jumlah ,murid yang tidak tuntas, dimana pada pertama jumlah siswa yang tidak tuntas mencapai 100%, pada tes kedua menurun menjadi 47,00 % kemudian pada tes ketiga menurun lagi menjadi 15,00 % dengan kata lain hanya 2 siswa saja yang memperoleh nilai 50 ke bawah dan selebihnya (28 ) siswa memperoleh nilai di atas 50.
Implementasi Pengajaran Nilai-Nilai Toleransi melalui Pendidikan Akhlak Budi Pekerti pada Siswa Sekolah Dasar
Authors: Mariyah Siti , Nazaruddin Nazaruddin 
Published: April 2024

Penelitian ini bertujuan untuk mendeskripsikan implementasi pengajaran nilai-nilai toleransi melalui pendidikan Akhlak Budi Pekerti di jenjang Sekolah Dasar. Pengajaran tentang nilai-nilai toleransi sangat penting untuk diberikan pada jenjang pendidikan dasar, karena modul pendidikan toleransi dapat membantu anak didik menjadi berpikiran lebih terbuka, moderat dan dapat menerima berbedaan terhadap agama, suku bangsa, ras, bahasa, buday, warna kulit, dan juga perbedaan-perbedaan lainnya. Pendidikan akhlak budi pekerti juga mendidik siswa tentang karakter mulia, oleh karena itu, mata pelajaran ini sangat bermanfaat untuk mengajarkan nilai-nilai toleransi. Penelitian ini menggunakan pendekatan deskriptif kualitatif, dengan menggunakan metode analisis isi. Implikasi penelitian ini yaitu bahwa pembelajaran nilai-nilai toleransi melalui pendidikan akhlak budi pekerti sangat perlu diajarkan kepada anak didik pada jenjang sekolah dasar.
Gamma-Ray Burst Pulses and Lateral Jet Motion
Authors: Hakkila Jon , Pendleton Geoffrey N. , Preece Robert D. , Giblin Timothy W. 
Published: April 2024

Abstract
We propose that gamma-ray burst (GRB) pulses are produced when highly relativistic jets sweep across an observer’s line of sight. We hypothesize that axisymmetric jet profiles, coupled with special relativistic effects, produce the time-reversed properties of GRB pulses. Curvature resulting from rapid jet expansion is responsible for much of the observed pulse asymmetry and hard-to-soft evolution. The relative obliqueness with which the jet crosses the line of sight explains the known GRB pulse morphological types. We explore two scenarios: one in which a rigid/semirigid jet moves laterally and another in which a ballistic jet sprays material from a laterally moving nozzle. The ballistic jet model is favored based upon its consistency with standard emission mechanisms.
Application of Deep-learning Methods for Distinguishing Gamma-Ray Bursts from Fermi/GBM Time-tagged Event Data
Authors: Zhang 张 Peng 鹏 , Li 李 Bing 兵 , Gui 桂 Renzhou 任舟 , Xiong 熊 Shaolin 少林 , Zou 邹 Ze-Cheng 泽城 , Wang 王 Xianggao 祥高 , Li 李 Xiaobo 小波 , Cai 蔡 Ce 策 , Zhao 赵 Yi 一 , Zhang 张 Yanqiu 艳秋 , Xue 薛 Wangchen 王陈 , Zheng 郑 Chao 超 , Zhao 赵 Hongyu 宏宇 
Published: April 2024

Abstract
To investigate gamma-ray bursts (GRBs) in depth, it is crucial to develop an effective method for identifying GRBs accurately. Current criteria, e.g., onboard blind search, ground blind search, and target search, are limited by manually set thresholds and perhaps miss GRBs, especially for subthreshold events. We proposed a novel approach that utilizes convolutional neural networks (CNNs) to distinguish GRBs and non-GRBs directly. We structured three CNN models, plain-CNN, ResNet, and ResNet-CBAM, and endeavored to exercise fusing strategy models. Count maps of NaI detectors on board Fermi/Gamma-ray Burst Monitor were employed, as the input samples of data sets and models were implemented to evaluate their performance on different timescale data. The ResNet-CBAM model trained on the 64 ms data set achieves high accuracy overall, which includes residual and attention mechanism modules. The visualization methods of Grad-CAM and t-SNE explicitly displayed that the optimal model focuses on the key features of GRBs precisely. The model was applied to analyze 1 yr data, accurately identifying approximately 98% of GRBs listed in the Fermi burst catalog, eight out of nine subthreshold GRBs, and five GRBs triggered by other satellites, which demonstrated that the deep-learning methods could effectively distinguish GRBs from observational data. Besides, thousands of unknown candidates were retrieved and compared with the bursts of SGR J1935+2154, for instance, which exemplified the potential scientific value of these candidates indeed. Detailed studies on integrating our model into real-time analysis pipelines thus may improve their accuracy of inspection and provide valuable guidance for rapid follow-up observations of multiband telescopes.
The First Quenched Galaxies: When and How?
Authors: Xie 谢 Lizhi 利智 , De Lucia Gabriella , Fontanot Fabio , Hirschmann Michaela , Bahé Yannick M. , Balogh Michael L. , Muzzin Adam , Vulcani Benedetta , Baxter Devontae C. , Forrest Ben , Wilson Gillian , Rudnick Gregory H. , Cooper M. C. , Rescigno Umberto 
Published: April 2024

Abstract
Many quiescent galaxies discovered in the early Universe by JWST raise fundamental questions on when and how these galaxies became and stayed quenched. Making use of the latest version of the semianalytic model GAEA that provides good agreement with the observed quenched fractions up to z ∼ 3, we make predictions for the expected fractions of quiescent galaxies up to z ∼ 7 and analyze the main quenching mechanism. We find that in a simulated box of 685 Mpc on a side, the first quenched massive (M
⋆ ∼ 1011
M
⊙), Milky Way–mass, and low-mass (M
⋆ ∼ 109.5
M
⊙) galaxies appear at z ∼ 4.5, z ∼ 6.2, and before z = 7, respectively. Most quenched galaxies identified at early redshifts remain quenched for more than 1 Gyr. Independently of galaxy stellar mass, the dominant quenching mechanism at high redshift is accretion disk feedback (quasar winds) from a central massive black hole, which is triggered by mergers in massive and Milky Way–mass galaxies and by disk instabilities in low-mass galaxies. Environmental stripping becomes increasingly more important at lower redshift.
« Nous ne faisons pas un métier comme les autres »
Authors: Bodelet Claire 
Published: April 2024

Cet article porte sur un groupe d’artistes méconnus des sciences sociales, les « clowns à l’hôpital ». Il montre que leur socialisation se caractérise par la création d’une identité spécifique et individuelle de clown qui est ensuite plus ou moins mise à l’épreuve dans le travail à l’hôpital. En effet, la création de son clown est une condition incontournable pour devenir membre du groupe. Elle donne lieu à une grande diversité de personnages qui ne sont pas interchangeables et que l’on peut ensuite « amener » avec soi n’importe où, y compris à l’hôpital. En quoi consiste concrètement le travail de construction de son identité personnelle de clown ? Comment le groupe professionnel régule-t‑il cette diversité ? Et une fois entrés à l’hôpital, dans quelle mesure les clowns parviennent-ils à préserver leur identité d’artiste ? À partir d’une ethnographie menée en France avec l’association Le Rire Médecin, l’article analyse comment les clowns à l’hôpital construisent une identité professionnelle « pas comme les autres », dans un processus à la croisée du monde des arts et de celui des soins. Celle-ci s’appuie sur des acquis de leur socialisation professionnelle et sur des pratiques de régulation individuelles et collectives de leur identité d’artiste.
Naturalisme et nature humaine : la théorie pragmatiste des instincts
Authors: Madelrieux Stéphane 
Published: April 2024

La question des instincts est une voie d’entrée privilégiée pour le rapport du pragmatisme au naturalisme. Le problème que soulève la théorie des instincts de William James et John Dewey vient du maintien, à première vue surprenant, de l’idée d’une « nature humaine ». Je soutiens que c’est au sein même de la théorie pragmatiste des instincts que l’on trouve des arguments pour montrer que la nature humaine ne détermine pas univoquement la conduite. Bien comprendre la naturalité de l’être humain suffit à défaire toute tentative pour l’ériger en source d’autorité des principes de la conduite.
Les nuances de l’excellence
Authors: Dakowska Dorota 
Published: April 2024

Cet article analyse les transformations de l’enseignement supérieur et de la recherche en Pologne, en se focalisant sur les réformes consécutives au changement de régime en 1989, celles mises en place par les majorités libérales puis par le parti conservateur Droit et Justice (PiS). D’une part, il se penche sur les conditions d’avènement et de l’institutionnalisation des instruments de mise en compétition des chercheurs et des laboratoires. D’autre part, il réexamine le poids des jeux politiques dans l’orientation des politiques de l’ESR. Si le contexte des transformations systémiques et l’adhésion à l’UE renforcent l’ouverture à la comparaison internationale et à l’impératif de compétitivité, la position des gouvernements conservateurs (2015-2023) demeure ambiguë. La reconduction des instruments d’évaluation bibliométrique ne dévoile que progressivement l’entreprise idéologique réactionnaire.
La baisse de la fertilité des champs dans le bassin arachidier du Sénégal à l’aune de la cohésion sociale
Authors: Gangneron Fabrice , Pierre Caroline , Robert Élodie , Saqalli Mehdi , Codiat Juliette 
Published: April 2024

La fertilité des sols dans le bassin arachidier reposait sur un système agraire complexe associant jachère, agroforesterie et apports de matière organique des animaux d’élevage. Ce système s’est délité depuis les années 1990 du fait notamment de l’affaiblissement de la « cohésion sociale » à l’échelle des familles et des villages dans un cadre de la monté de la monétarisation de l’agriculture et des aspirations des cadets sociaux à s’autonomiser. Néanmoins, on n’observe pas « d’effondrement » des solidarités : elles se recomposent, mais elles ne sont plus essentiellement orientées vers la reproduction du système agraire et donc vers l’entretien de la fertilité des sols. Classification JEL : D0, Q1, Q2