bluuebunny/crossref_metadata_2025_split huggingface dataset:
UJI AKTIVITAS ANTIOKSIDANDAN PENETAPAN KADAR FLAVONOID TOTALDARI EKSTRAK ETANOL 70% DAUN KAPUK RANDU (CEIBA PENTANDRA(L.)GEARTN) DENGANMETODE DPPH
Authors: Siva Fauziah  , Nova Puspita Sari  
Published: April 2024

Abstrak
Daun kapuk randu mengandung senyawa flavonoid yang memiliki aktivitas sebagai antioksidan. Penelitian ini bertujuan untuk menetapkan kadar flavonoid totaldan menguji aktivitas antioksidan dari ekstrak etanol 70% daun kapuk randu (Ceiba pentandra (L.)Gaertn.) dengan menggunakan spektrofotometer UV-Vis. Penentuan kadar flavonoid total ekstrak etanol 70% daun kapuk randu (Ceiba pentandra (L.)Gaertn.) ditentukan berdasarkan nilai absorbansi yang diukur pada panjang gelombang sinar tampak 429,0 nm dengan menggunakan pembanding kuersetin. Uji akivitas antioksidan ekstrak etanol 70% daun kapuk randu (Ceiba pentandra (L.)Gaertn.) ini dilakukan dengan mengukur aktivitas peredaman ekstrak terhadap radikal DPPH (1,1-difenil-2-pikrilhidrazil) secara spektrofotometer UV-Vis pada panjang gelombang 515,0 nm. Hasil penelitian menunjukan kadar flavonoid total yang diperoleh pada ekstrak etanol 70% daun kapuk randu yaitu12,69%. Hasil dari uji aktivitas antioksidan ekstrak etanol 70% daun kapuk randu diperoleh nilai IC50 sebesar 59,296 ppm. Disimpulkan bahwa ekstrak etanol 70% daun kapuk randu memiliki potensi sebagai antioksidan yang kuat.

Abstract
Kapok leaves contain flavonoid compounds which have antioxidant activity. Research of determination of total flavonoid content and antioxidant activity of 70% ethanol extract in kapok leaf (Ceiba pentandra (L.)Gaertn.) by using UV-Vis spectrophotometer. Determination of total flavonoid levels of 70% ethanol extract kapok leaf (Ceiba pentandra (L.)Gaertn.) Extract was determined based on the absorbance value measured at the wavelength of visible light 429.0 nm using a comprator quercetin. Antioxidant activity test for ethanol 70% kapok leaf extract (Ceiba pentandra (L.)Gaertn.) was carried out by measuring the reducing activity of the extract against DPPH radical (1,1-diphenyl-2-picrylhydrazyl) by UV-Vis spectrophotometer at a wavelength of 515.0 nm. The results showed total flavonoid levels obtained on70% ethanol extract kapok leaf (Ceiba pentandra (L.)Gaertn.) is 12,69%. The results of the kapok leaf antioxidant activity test obtained IC50 values in 70% ethanol extract kapok leaf (Ceiba pentandra (L.)Gaertn.) is59,296 ppm. It was concluded that 70% ethanol extract kapok leaf (Ceiba pentandra (L.)Gaertn.) it has potential as a powerful antioxidant.
ANALISA PERBANDINGAN METODE SIMPLE ADDITIVE WEIGHTING (SAW) DAN ANALYTICAL HIERARCHY PROCESS (AHP) UNTUK SISTEM PENUNJANG KEPUTUSAN MASYARAKAT MISKIN PADA DESA CILOTO
Authors: Darmin  , Rizki Maulana  , Hardiansyah Alim 
Published: April 2024

Abstrak
Sistem Pendukung Keputusan merupakan sistem informasi interakif yang menyediakan informasi, pemodelan, dan manipulasi data dan untuk meningkatkan efektifitas yang memungkinkan pengambilan keputusan lebih objektif. Tim Penanggulangan Kemiskinan (TPK) Desa Ciloto dalam melaksanakan tugasnya untuk menyeleksi warga yang tergolong miskin, saat ini masih sangat kesulitan dalam mendistribusikan bantuan yang akan diberikan kepada warga yang membutuhkan karena masih menggunakan cara manual dan bersifat objektif. Penilaian tingkat kemiskinan yang bersifat objektif mengakibatkan penerima bantuan tidak tepat sasaran, sehingga membutuhkan suatu sistem informasi untuk mendukung pengambilan keputusan yang lebih objektif. Agar perhitungan dan pengolahan data lebih akurat, maka dilakukan perhitungan menggunakan perbandingan pada sebuah metode Simple Additive Weighting (SAW) dan Analytical Hierarchy Process (AHP). Dalam pengembangan sebuah sistem metodologi yang digunakan adalah System Development Life Cycle (SDLC) dan untuk perancangan aplikasi menggunakan UML (Unified Modelling Language). Setelah dilakukan pengujian terhadap sistem, maka metode Simple Additive Weighting (SAW) lebih efektif dalam menentukan penerimaan bantuan, sehingga dalam implementasi sistem diharapkan dapat membantu pihak desa dalam memperoleh informasi tingkat kemiskinan di desa tersebut, sehingga pemberian bantuan yang diberikan pemerintah bisa lebih tepat sasaran.

Abstract
Decision support systems are interactive information systems that provide information, modeling, and manipulation of data and to increase effectiveness that enables more objective decision making. The ciloto village poverty reduction team (TPK) in carrying out its task of selecting residents classified as poor, is currently still very difficult in distributing aid to be given to people in need because it still uses manual and objective methods. an objective assessment of poverty levels results in recipients of aid that are not on target, so that information systems are needed to support more objective decision making. To make the calculation and processing of data more accurate, the calculation is done by using a comparison on simple additive weighting (SAW) and the Analytical Hierarchy Process (AHP) method in developing the system methodology used is the System Life Cycle (SDLC) and for application design using UML (Unified Modeling Language) after testing the system, the Simple Additive Weighting (SAW) method is more effective in determining the receipt of assistance so that the implementation of the system is expected to help villages in obtaining information about poverty levels in the village, so that assistance provided by the government can be more targeted.
PENGUKURAN BEBAN KERJA OPERATOR CRANE DENGAN METODE NASA-TLX DI PELABUHAN KHUSUS CNOOC SES
Authors: Jutika Cahyana Babay , Rujito  
Published: April 2024

Abstract
The problem raised in this study is how the mental load experienced by the crane pedestal operator can be measured using the National Aeronautics and Space Administration Task Load Index (NASA-TLX) method. To then take control measures to reduce or eliminate the mental burden when operating a pedestal crane so that the factor of work accidents when operating a pedestal crane can be eliminated or reduced. The results showed one worker with a very high workload and three workers with a high workload. The element that has the level of influence on the workload is the element of effort with an average value of 23.3. By looking at the results of data processing and the high level of workload on all workers which can affect the work system to be less good, it is necessary to take countermeasures and improvements so that the possibility of work accidents can be eliminated or reduced
Keywords: Mental load, NASA-TLX, Pedestal crane
Perancangan dan Implementasi Sistem Informasi Penerimaan Member Baru di Komunitas Hijaberakasi Tangerang
Authors: - Mundirin , Purwanto  , Yeyen Grestiana Prayoga  
Published: April 2024

Abstrak

Perkembangan teknologi informasi telah berkembang sangat cepat mengikuti kebutuhan zaman yang memerlukan kecepatan dan ketepatan di segala aspek kehidupan. Perkembangan mengikuti segi perangkat keras, perangkat lunak, maupun dari segi sumber daya manusia yang mengoperasikannya. Pada saat ini hampir semua bidang kehidupan memerlukan teknologi informasi dan perilaku manusia sudah terbiasa dengan mengaplikasikan teknologi informasi didalam kehidupan sehari-hari. Untuk memudahkan akses masyarakat yang tertarik dalam dunia modelling, Hijaberaksi Community Tangerang selalu mengadakan event untuk melakukan perekrutan talent atau member. Namun langkah di nilai masih sangat konvensional. Sehingga para calon member yang berasal dari luar kota terkadang kesulitan untuk mendapatkan informasi dan melakukan proses pendaftaran. Tujuan dari penelitian ini adalah memudahkan para member untuk melakukan registrasi atau pendaftaran secara online dan memudahkan komunitas hijaberkasi dalam mempromosikan kegiatan atau event yang diselenggarakan. Perancangan system informasi yang digunakan menggunakan model UML(Undified Modelling Language) dan aplikasi dibangun menggunakan Bahasa pemrogrman PHP dan MySql sebagai database penyimpanan data.
Abstract
The development of information technology has developed very quickly following the needs of the times that require speed and accuracy in all aspects of life. Development follows in terms of hardware, software, and in terms of human resources that operate it. At this time almost all areas of life require information technology and human behavior is accustomed to applying information technology in everyday life. To facilitate access for people who are interested in modeling, Hijaberaksi Community Tangerang always holds events to recruit talent or members. But the step in value is still very conventional. So that prospective members who come from outside the city sometimes find it difficult to get information and carry out the registration process. The purpose of this research is to make it easier for members to register or register online and make it easier for the hijaberkasi community to promote activities or events held. The design of the information system used uses the UML (Undified Modelling Language) model and the application is built using the PHP and MySql programming languages ​​as data storage databases
Gentrification of Trusmi Batik Cirebon
Authors: Khairune Nisa An Nuur 
Published: April 2024

This study aims to photograph the immigration of middle-class residents to urban areas that are in poor condition or have recently been refurbished or modernized. This study uses a qualitative approach to see the phenomenon of Trusmi Village as the heart of batik production in Cirebon. They involve thousands of batik artisans working daily from residents of Trusmi village and its surroundings, such as Gamel, Kaliwulu, Wotgali, and KaliTengah. Shops and showrooms showcase artisans' finest products along 1.5 kilometers of Trusmi Street. Batik showrooms in the form of shops line the village streets in various sizes and shapes. UNESCO recognizes Indonesian Batik as one of the intangible world cultural heritage. Ironically, the wages of batik artisans are meager. Due to labor shortages, about 60 percent of the 360 batik SME industries in Cirebon Regency have gone out of business in the last five years. Old artisan mothers dominate the batik-making centers in Trusmi Village over the age of 4
The Evolution of Language Learning: Exploring AI's Impact on Teaching English as a Second Language
Authors: Konyrova Lazzat 
Published: April 2024

The integration of Artificial Intelligence (AI) into language education has revolutionized the teaching of English as a Second Language (ESL). This study explores the impact of AI on ESL instruction and investigates how AI-driven technologies enhance language learning outcomes. By analyzing current pedagogical approaches and technological innovations, this research examines how AI augments traditional language teaching methods, providing personalized and adaptive learning experiences for ESL learners. AI-based language learning platforms offer interactive modules tailored to individual student needs, creating an immersive and efficient learning environment. Additionally, the use of natural language processing (NLP) and machine learning algorithms enables real-time feedback and assessment, empowering learners to improve their language skills independently. This study critically evaluates the effectiveness of AI-driven tools in addressing linguistic challenges, such as pronunciation, grammar, and comprehension, while also considering their socio-cultural implications in diverse learning contexts. By examining the evolving role of AI in ESL education, this research contributes to a comprehensive understanding of the relationship between technology and language pedagogy. The insights from this analysis will inform educators, policymakers, and stakeholders about the potential and limitations of AI in reshaping language acquisition. Ultimately, this exploration advocates for a synergistic approach that harnesses AI's capabilities to optimize ESL instruction while preserving the human elements essential for holistic language learning experiences.
Italian adaptation of the Multidimensional Iowa Suggestibility Scale (MISS)
Authors: Liuzza Marco Tullio , Tolomeo Eva , Occhiuto Giuseppe , Cilurzo Martina , Martino Iolanda , Cerasa Antonio 
Published: April 2024

Background
Suggestibility is a personality trait that reflects a general tendency to accept messages. The Multidimensional Iowa Suggestibility Scale (MISS) is a self-report scale developed to measure the degree of individuals’ perceptions of their suggestibility. This study aimed to adapt the MISS in an Italian sample.

Methods
We conducted two studies. In the first study, 345 subjects (270 females (78%), mean age = 36.21 years ± 14.06 SD) completed the translated Italian version of the MISS, composed of five subscales (consumer suggestibility; persuadability; sensation contagion; physiological reactivity; peer conformity). We investigated the structural validity of the scale through confirmatory factor analysis (CFA) testing four measurement models (unidimensional, four-factor, hierarchical four factors, and bifactor) and explored reliability in terms of internal consistency through the McDonald’s omega. In the second study, we cross-validated the MISS on a new independent sample. We enrolled 277 participants (196 females (71%), mean age 30.56, SD = 12.58) who underwent the new version of the scale. We performed factor analyses to test structural validity and compared four measurement models. Then, we investigated reliability and conducted a latent variable analysis to explore divergent validity.

Results
The CFA in the first study revealed a bifactor solution of the MISS. This structure was interpretable and provided an adequate fit for the data. The final version of the scale was reduced to forty-six items with globally good indices of adaptation. The scale also demonstrated acceptable reliability in terms of internal consistency through the McDonald’s Hierarchical Omega. In the second study, we found that the bifactor structure was confirmed. Factor loadings inspection revealed that there was no justification to report only the separate scores for the subscales. We also found that the scale showed good internal consistency, but mixed evidence for divergent validity.

Conclusions
In the end, the Italian version of the MISS demonstrated good psychometric properties which will be discussed in detail below.
Plasma-based lipidomics reveals potential diagnostic biomarkers for esophageal squamous cell carcinoma: a retrospective study
Authors: Chen Yang , Gu Yixuan , Rong Jinhua , Xu Luyin , Huang Xiancong , Zhu Jing , Chen Zhongjian , Mao Weimin 
Published: April 2024

Background
Esophageal squamous cell carcinoma (ESCC) is highly prevalent and has a high mortality rate. Traditional diagnostic methods, such as imaging examinations and blood tumor marker tests, are not effective in accurately diagnosing ESCC due to their low sensitivity and specificity. Esophageal endoscopic biopsy, which is considered as the gold standard, is not suitable for screening due to its invasiveness and high cost. Therefore, this study aimed to develop a convenient and low-cost diagnostic method for ESCC using plasma-based lipidomics analysis combined with machine learning (ML) algorithms.

Methods
Plasma samples from a total of 40 ESCC patients and 31 healthy controls were used for lipidomics study. Untargeted lipidomics analysis was conducted through liquid chromatography-mass spectrometry (LC-MS) analysis. Differentially expressed lipid features were filtered based on multivariate and univariate analysis, and lipid annotation was performed using MS-DIAL software.

Results
A total of 99 differential lipids were identified, with 15 up-regulated lipids and 84 down-regulated lipids, suggesting their potential as diagnostic targets for ESCC. In the single-lipid plasma-based diagnostic model, nine specific lipids (FA 15:4, FA 27:1, FA 28:7, FA 28:0, FA 36:0, FA 39:0, FA 42:0, FA 44:0, and DG 37:7) exhibited excellent diagnostic performance, with an area under the curve (AUC) exceeding 0.99. Furthermore, multiple lipid-based ML models also demonstrated comparable diagnostic ability for ESCC. These findings indicate plasma lipids as a promising diagnostic approach for ESCC.
Stressed Triangular Tessellations and Fibonacci Parastichous Spirals on Ag Core/SiO2 Shell Microstructures
Authors: Li Chao‐Rong , Ji Ai‐Ling , Gao Lei , Cao Ze‐Xian 
Published: August 2009

AbstractTriangular tessellations and Fibonacci parastichous spirals were assembled via thermal stress engineering of Ag‐core/SiO2‐shell microstructures, for which the geometry and topology of the primary core/shells play a pivotal role. Patterns on slightly stressed spherical surfaces are simply triangular tessellations with 12 pentamers, whereas additional pentamer–heptamer chains emerge when more vertices are available (>360) on heavily stressed surfaces, all showing an excellent agreement with numerical solutions to the Thomson's problem. Defect‐free triangular lattice can be produced on a pierced spherical cap prepared via the draining effect. Remarkably, Fibonacci spirals of definite chirality, 3 by 5 through 13 by 21, and in both sinister and dexter forms, emerge on the conical supports. These results provide strong confirmation of the mechanical principle for phyllotaxis that the phyllotatic patterns are the least‐elastic‐energy configuration in a confining receptacle, and meanwhile demonstrate an effective path for the en masse fabrication of patterned structures on curved surfaces.
Flow distribution and mass transfer in a parallel microchannel contactor integrated with constructal distributors
Authors: Yue Jun , Boichot Raphaël , Luo Lingai , Gonthier Yves , Chen Guangwen , Yuan Quan 
Published: August 2009

AbstractFlow distribution and mass transfer characteristics during CO2‐water flow through a parallel microchannel contactor integrated with two constructal distributors have been investigated numerically and experimentally. Each distributor comprises a dichotomic tree structure that feeds 16 microchannels with hydraulic diameters of 667 μm. It was found that constructal distributors could ensure a nearly uniform gas–liquid distribution at high gas flow rates where the ideal flow pattern was slug‐annular flow. Nevertheless, at small gas flow rates where the ideal flow pattern was slug flow, a significant flow maldistribution occurred primarily due to the lack of large pressure barrier inside each distributor, indicating that dynamic pressure fluctuation in parallel microchannels greatly disturbed an otherwise good flow distribution therein. It was further shown that the present parallel microchannel contactor could realize the desired mass transfer performance previously achieved in one single microchannel under relatively wide operational ranges due to the integration of constructal distributors. © 2009 American Institute of Chemical Engineers AIChE J, 2010
Mechanical and film properties of thermally curable polysiloxane
Authors: Chakraborty Ruby , Soucek Mark D. 
Published: August 2009

AbstractTelechelic glycidyl epoxide siloxanes substituted with either methyl, cyclopentyl, or cyclohexyl groups were cured thermally with corresponding telechelic aliphatic amine. Also, the three glycidyl epoxide functionalized siloxanes were homopolymerized via a photo‐initiated cationic mechanism. Both the UV and thermal curing were performed by formulating with reactive diluents. The mechanical properties, viscoelastic behavior, and coatings properties of the thermally cured siloxanes were studied. In addition, the X‐ray measurements were performed. The rate of polymerization increased with the increasing size of substituent on the siloxane backbone. The hardness, adhesion, and solvent resistance increased as the bulk of the substituent increased in the siloxane backbone. The release properties for adhesion and readhesion increased with increase in steric bulk of the backbone substituents. Crosslink density reduced and oxygen permeability increased with increase in siloxane substituent size. There was also an increase in the advancing and the receding contact angles with the increase in substituent size. The inverse dependency of substituent size and free volume was observed in the d‐spacing of the X‐ray data. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Stereological Methods for Estimating the Myelin Sheaths of the Myelinated Fibers in White Matter
Authors: Li Chen , Yang Shu , Chen Lin , Lu Wei , Qiu Xuan , Gundersen Hans Jorgen G. , Tang Yong 
Published: August 2009

AbstractIn the present study, efficient and unbiased stereological techniques to investigate the myelin sheaths of the myelinated fibers in rat white matter were established. In the present design, four tissue blocks were obtained from the entire white matter of rat brain in a uniform, random fashion. Isotropic, uniform random (IUR) sections were ensured by the use of the isector technique. One section with the thickness of 60 nm was cut from the center of each epon block. Eight to 10 fields of vision were randomly photographed under a transmission electron microscope. The total length of the myelinated fibers and the total volume of the myelin sheaths in the white matter were the products of the length density, volume density, and the volume of the white matter obtained with the Cavalieri principle. The mean areas of the myelinated fibers profiles and myelin sheaths were estimated with the point counting technique. The inner and outer perimeters of the myelin sheaths were estimated by the use of a line grid, and the thickness of the myelin sheaths was estimated by direct orthogonal measurements in uniform, random locations. The described methods will provide very useful tools for future quantitative studies of changes in the myelin sheaths of white matter in various experimental conditions and in various neurodegenerative diseases. Anat Rec, 2009. © 2009 Wiley‐Liss, Inc.
Microfluidic biochip for the perifusion of precision‐cut rat liver slices for metabolism and toxicology studies
Authors: van Midwoud Paul M. , Groothuis Geny M.M. , Merema Marjolijn T. , Verpoorte Elisabeth 
Published: August 2009

AbstractEarly detection of kinetic, metabolic, and toxicity (ADME‐Tox) profiles for new drug candidates is of crucial importance during drug development. This article describes a novel in vitro system for the incubation of precision‐cut liver slices (PCLS) under flow conditions, based on a poly(dimethylsiloxane) (PDMS) device containing 25‐µL microchambers for integration of the slices. The microdevice is coupled to a perifusion system, which enables a constant delivery of nutrients and oxygen and a continuous removal of waste products. Both a highly controlled incubation environment and high metabolite detection sensitivity could be achieved using microfluidics. Liver slices were viable for at least 24 h in the microdevice. The compound, 7‐ethoxycoumarin (7‐EC), was chosen to test metabolism, since its metabolism includes both phase I and phase II metabolism and when tested in the conventional well plate system, correlates well with the in vivo situation (De Kanter et al. 2004. Xenobiotica 34(3): 229–241.). The metabolic rate of 7‐EC was found to be 214 ± 5 pmol/min/mg protein in the microdevice, comparable to well plates, and was constant over time for at least 3 h. This perifusion system better mimics the in vivo situation, and has the potential to significantly contribute to drug metabolism and toxicology studies of novel chemical entities. Biotechnol. Bioeng. 2010;105: 184–194. © 2009 Wiley Periodicals, Inc.