bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment of biochemical profile among patients of gestational diabetes mellitus
Authors: Rehman Umna , Arshad Misbah , Iqbal Amir 
Published: October 2021

Gestational diabetes mellitus is common but a major health problem in pregnant women. The rate of gestational diabetes mellitus has increased globally from 3% to 14% within last 10 years. Objective: To assess the biochemical profile of women with gestational diabetes mellitus visiting public hospitals, Lahore city. Methods: A cross-sectional study was carried out at gynae department of Sir Ganga Ram Hospital, Lahore and Services Institute of Medical Sciences, Lahore within 4 months using the convenient sampling technique. The data of 100 patients were collected through pre-tested questionnaire. Data were analyzed statistically using SPSS version 21.0. Frequencies were calculated, Pearson’s chi-square test was applied. Results: According to the results, 81% patients were not having insulin therapy during pregnancy and only 19% were having insulin. 73% patients had OGTT values above 200 mg/dl during pregnancy while 27% had values above 140 mg/dl. An insignificant association was found between HbA1c test results and cereal food (paratha) consumption (p< .72). Conclusions: Study concluded that more than half of female had high OGTT rate. Improper medication, irregular treatment and lack of proper medication to control diabetes during pregnancy were a major cause of high clinical test values of diabetes in pregnant women. There was no significant association between HbA1c test results and cereal food consumption
Pengembangan Kreativitas Peserta Didik Melalui Karya Montase Dalam Pembelajaran Seni Rupa
Authors: Adnan  , Rosma Elly  , Tati Erna  , Rizki Kurniawati  , M. Husin  , Said Darnius  
Published: October 2021

Pengembangan Kreativitas,……….…….

Jurnal Sosiohumaniora Kodepena
pp. 130-141

Penelitian ini bertujuan untuk mendeskripsikan pengembangan kreativitas peserta didik melalui karya montase di kelas IV SDN Unggul Lampeuneurut.Pendekatan yang digunakan dalam penelitian ini yaitu pendekatan kualitatif dengan jenis penelitian deskriptif. Adapun subjek dalam penelitian ini adalah 1 orang guru kelas IV dan peserta didik sebanyak 29 orang yang terdiri dari 10 orang peserta didik laki-laki dan 19 orang peserta didik perempuan. Pengumpulan data dilakukan dengan teknik observasi, wawancara, dan dokumentasi. Seluruh data yang terkumpul diolah dengan tahap analisis data yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Dengan mengambil dokumentasi hasil karya montase yang dibuat oleh peserta didik. Berdasarkan hasil penelitian menunjukkan bahwa pengembangan kreativitas peserta didik melalui karya montase dalam pembelajaran seni rupa kelas IV SDN Unggul Lampeuneurut perlu adanya pengembangan kreativitas pada materi seni rupa melalui karya montase supaya peserta didik lebih bebas mengembangkan kemampuan dan kreativitas yang peserta didik miliki, bebas mengembangkan ide-ide yang menarik. Dalam pengembangan kreativitas peserta didik juga perlu adanya motivasi dari guru agar peserta didik mampu menciptakan suatu karya montase yang lebih baik. Dari penelitian ini dapat disimpulkan bahwa setiap peserta didik memiliki bakat, potensi serta kreativitas yang baik. Namun masih kurang dalam penerapannya, sehingga menyebabkan kurangnya pengembangan kreativitas peserta didik melalui karya montase di kelas IV SDN Unggul Lampeuneurut.
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE THINK PAIR SHARE TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA
Authors: Fatmawati  , Idayatuloh  
Published: October 2021

Penelitian ini bertujuan untuk menganalisis pengaruh model pembelajaran kooperatif tipe think pair share terhadap kemampuan pemecahan masalah matematika siswa kelas VIII MTs Al- Khairiyah Pipitan Kota Serang. Penelitian ini merupakan penelitian kuantitatif metode survei. Sampel penelitian berjumlah 28 siswa. Instrumen yang digunakan adalah angket tertutup untuk mengukur respon siswa terhadap model pembelajaran kooperatif tipe think pair share dan tes untuk mengukur kemampuan pemecahan masalah matematika. Teknik analisis data yang digunakan adalah analisis korelasi dan analisis regresi. Hasil analisis korelasi diperoleh koefisien korelasi sebesar 0,522. Hasil analisis regresi diperoleh nilai sebesar 9,72 dan pada taraf signifikan sebesar 5% atau 0,05 diperoleh sebesar 4,22. Karena maka H0 ditolak, dengan koefisien korelasi sebesar 0,522 dapat disimpulkan bahwa terdapat pengaruh yang signifikan model pembelajaran kooperatif tipe think pair share terhadap kemampuan pemecahan masalah matematika siswa kelas VIII MTs Al-Khairiyah Pipitan Kota Serang sebesar 27,25%.
ANALISIS MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP MOTIVASI BELAJAR SISWA
Authors: Destri Astrianingsih  
Published: October 2021

Tujuan penelitian ini adalah untuk menganalisis model pembelajaran Problem based learning terhadap motivasi belajar siswa. Jenis penelitian yang digunakan peneliti adalah Study Literatur. Dalam buku Suarifqi Diantama menjelaskan Studi literatur merupakan suatu jenis penelitian yang dilakukan dengan cara mempelajari dan mengkaji buku-buku yang ada hubungannya dengan masalah yang diteliti untuk memperoleh bahan-bahan atau sumber informasi tentang masalah yang diteliti. Dari hasil penelitian dan pembahasan yang telah dianalisis dari berbagai sumber baik jurnal nasional dan skripsi yang relevan dapat disimpulkan bahwa hasil penelitian yang telah peneliti lakukan, peneliti menarik kesimpulan bahwa menerapkan model pembelajaran problem based learning dengan langkah-langkah yang tepat dalam proses pembelajaran dapat meningkatkan motivasi belajar siswa
PENGEMBANGAN MEDIA PEMBELAJARAN MATEMATIKA BERBASIS ADOBE FLASH PADA MATERI POLA BILANGAN SISWA KELAS VIII MTS AL-KHAIRIYAH PIPITAN KOTA SERANG
Authors: Fatmawati  , Novia Ratna Sari  , Nurul Awaliyati Dewi  
Published: October 2021

Tujuan penelitian ini untuk mengetahui kelayakan media pembelajaran matematika berbasis Adobe Flash pada materi pola bilangan siswa kelas VIII MTs Al- Khairiyah Pipitan. Jenis penelitian ini adalah penelitian pengembangan atau dalam bahasa inggris Research and Development mengacu menurut Sugiono yang terdiri dari sepuluh langkah namun peneliti membatasi hanya sampai enam langkah yang disesuaikan dengan kebutuhan peneliti, yakni potensi dan masalah, pengumpulan data, desain produk, validasi desain, revisi desain, dan uji coba produk. Teknik pengumpulan data peneliti menggunakan angket kuesioner yang disajikan dalam persentase. Hasil akhir penelitian initelah dilakukan ujicoba produk. Terbukti dari produk media pembelajaran matematika berbasis adobe flash yang diujicobakan kepada Siswa kelas VIII E dan Guru matematika di MTs Al-Khairiyah Pipitan. Dengan hasil angket respon Siswa sebesar 85% dan hasil angket respon Guru sebesar 84,5% dengan kriteria “Sangat Layak” artinya pengembangan media pembelajaran matematika berbasis adobe flash pada materi pola bilangan layak digunakan. Sehingga dapat disimpulkan media pembelajaran matematika berbasis adobe flash layak sebagai media pembelajaran matematika pada materi pola bilangan siswa kelas VIII MTs Al-Khairiyah Pipitan.
Není hvězda jako hvězda: identifikace klíčových aktérů v sociálních sítích
Authors: Diviák Tomáš 
Published: October 2021

The concept of centrality and centrality measures are well-known and frequently used in social network analysis. They are also implemented in numerous software packages. However, that does not mean that it is easy to apply them correctly. This paper aims to introduce the most frequently used centrality measures, but more importantly to point out the problems related to their application and to sketch potential solutions for these problems. First, three basic centrality measures are introduced: degree, betweenness, and closeness. There are three broad categories of issues with centrality measures. These categories are: inadequate operationalisation of centrality measures, explanation of their distribution, and interdependence of observation in statistical modelling. A typology of flows in the network is presented as a potential solution allowing for transparent operationalisation. The so-called positional approach is another potential solution allowing for conceptually and computationally rigorous definition of centrality measures. Lastly, statistical models for network data are introduced as a way to deal with interdependence of observations. In the conclusion, challenges for measuring centrality in bipartite and multiplex networks are discussed.
Calibration Approach Product Type Estimators of Population Mean in Stratified Sampling with Single Constraint: A Comparison of Three Distance Measures
Authors: Inyang Enang, Ekaette , Nkan Ojua, Doris , Ojewale T. T. 
Published: October 2021

This study employed the method of calibration on product type estimator to propose calibration product type estimators using three distance measures namely; chi-square distance measure, the minimum entropy distance measure and the modified chi-square distance measure for single constraint. The estimators of variances of the proposed estimators were also obtained. An empirical study to ascertain the performance of these estimators was carried out using real life and stimulated data set. The result with the real life data showed that the proposed calibration product type estimator produced better estimates of the population mean compared to and . Results from the simulation study showed that the proposed calibration product type estimators had a high gain in efficiency as compared to the product type estimator. The simulation result also showed that the proposed estimators were more consistent and reliable under the Gamma and Exponential distributions with the exponential distribution taking the lead. The conventional product type estimator however was found to be better if the underlying distributional assumption is normal in nature.
Landless Urban Rooftop Farming Context of Soilless Culture for Microbe Frees Cultivation, Roof Security and Environmental Sustainability
Authors: Chandra Sahu Kartik , Satapathy Mahendra Kumar 
Published: October 2021

Landless rooftop farming is an artificial cultivation on the roof which uses organic solid or liquid media called solution culture “media culture” or water culture “hydroponics”. Media culture and hydroponics has been used sporadically throughout the world in rooftop and tissue culture also has been used the world as commercial means of growing both food and ornamental plants. It supplies fresh vegetables in countries with limited arable land as well as in small countries with large populations. Plants grown by hydroponics have concisely superior quality, high yield, rapid harvest, and high content, at present it is used widely in research facilities as a technique for studying plant nutrition. Gravel or sand is sometimes used in soilless systems to provide plant support, and retain some nutrients and water. The retention and water can be for their improvement through the used materials, but others such as rice hulls, bagasse, sedge peat, and sawdust are used sometime as constituents in soilless mixture straw bales have been used as the growing medium in England and Canada. Rockwool (porous stone fiber) is used in Europe. Since the major constituent of the media in artificial growing systems may be solid or liquid, it is appropriate to use the term soil culture in reference to this general type of growing system and reserve the term hydroponics for those in which water is the principal constituent. Soilless organic media preparation and use has a tremendous effect in land less culture. It is basically used in Rooftop vegetable cultivation.
Anatomical Evaluation of Mandibular Bone Cortex in Patients with Mucopolysaccharidosis: A Case-Control Study
Authors: Lira Junior Cledinaldo , Pires Gonçalves Diego Henrique , Ramalho Frazão Kamilly de Lourdes , Marinho Sandra Aparecida , De Carvalho Sérgio Henrique Gonçalves , Pina Godoy Gustavo , Alves Fonseca Fátima Roneiva , Santana Sarmento Dmitry José de 
Published: October 2021

Aims: To evaluate the mandibular bone cortical of patients with mucopolysaccharidosis on panoramic radiograph, through radiomorfometric indices.
Study Design: Case-control study.
Place and Duration of Study: Sample: Department of Diagnostic Imaging of the Universidade Estadual da Paraíba, Campus VIII, in the city of Araruna, PB, between January and December of 2015.
Methodology: Panoramic radiographs of sixteen patients with mucopolysaccharidosis and 32 controls, organized by gender and age, composed the sample. The mandibular panoramic index, gonial index, antegonial index and mental index were evaluated. Pearson's Chi-square test, Fisher's exact test and Mann-Whitney test were used to statistical analysis with a level of significance of 5.0%.
Results: Mucopolysaccharidosis patients were mostly female (62.5%), with a mean age of 12.31 + 7.16 years, MPS VI (50.0%) being the most prevalent. Patients with mucopolysaccharidosis had higher values in the gonial (1.86+0.48), the antegonical (4.36+1.24) and the mental (5.24+1.21). However, only the antegoniac index presented a significant difference (P=0.047).
Conclusion: The antegoniac index was higher in patients with mucopolysaccharidosis and the other radiomorphometric measures were similar to those observed in the control group. Apparently, mucopolysaccharidosis is not related to decreased bone to mandibular quality.
Antioxidant Activity of Red and Purple Rosella Flower Petals Extract (Hibiscus sabdariffa L.)
Authors: Shafirany Mareetha Zahra , Indawati Iin , Sulastri Lela , Sadino Asman , Kusumawati Anggun Hari , Alkandahri Maulana Yusuf 
Published: October 2021

Aims: This study aims to test the antioxidant activity of red and purple H. sabdariffa flower petals extract and conduct qualitative phytochemical screening.
Study Design: Antioxidant potential of red and purple H. sabdariffa flower petal extract analyzed by spectrometric assays.
Place and Duration of Study: This study was carried out at School of Pharmacy Muhammadiyah Cirebon, Cirebon, West Java, Indonesia from the year of 2020 to 2021.
Methodology: Red and purple H. sabdariffa petals extracted with 70% ethanol. The extract was then examined for its antioxidant activity using the DPPH (1,1-diphenyl-2-picrylhydrazyl) method, after the qualitative phytochemical screening.
Results: In this study, the concentration of red and purple H. sabdariffa petals extract dependently demonstrated the ability to scavenge DPPH. In the DPPH radical scavenging activity test, the red and purple H. sabdariffa petasl extracts designating IC50 values of 63.77 and 37.19 µg/ml and fall into the category of strong and very strong antioxidant activity. Meanwhile, phytochemical screening tests showed the existence of flavonoids and polyphenols in the extract of red and purple H. sabdariffa petals.
Conclusion: This study shows that the red and purple H. sabdariffa petals extract has potential as a promising natural antioxidant agent for the treatment of oxidative stress.
Optimization of Site-Specific Drug Delivery System of Tyrosine Kinase Inhibitor Using Response Surface Methodology
Authors: Krishnan S. Parimala , Reddy Cinnayyagari Mahesh , Reddy Challa Balashekar 
Published: October 2021

Aims: The aim of present study was to develop a stomach specific formulation of Imatinibmesylate to increase the fraction of drug absorbed in stomach.
Study Design: Development and Optimization of Microspheres for site specific delivery..
Place and Duration of Study: The study was carried out in Department of Pharmacy, Annamalai University, between October 2020 and July 2021.
Methodology: Ionotropic gelation method with Sodium alginate and Chitosan were used to formulate the mucoadhesive microspheres with calcium chloride. The formulation was optimized using Box – Behnken design to study the effect of independent variables, Amount of Sodium Alginate (X1), Amount of Chitosan (X2) and concentration of Calcium Chloride (X3) on dependent variables Particle Size (Y1), Entrapment Efficiency (Y2) and In-vitro drug release (Y3).
Results: Particle size of prepared microspheres varied from 458.25 to 810.75 μm, entrapment efficiency from 64.87 to 82.63% and in-vitro release from 69.22 to 83.50%. The optimized formulation was found using point prediction, and formulation showed optimum results. The drug release was controlled for more than 12 h.
Conclusion: Stomach specific formulation of Imatinibmesylate was successfully optimized by a three-factor, three level Box – Behnken design.
Interfacial Electrostatic‐Interaction‐Enhanced Photomultiplication for Ultrahigh External Quantum Efficiency of Organic Photodiodes
Authors: Kim Juhee , Kang Mingyun , Lee Sangjun , So Chan , Chung Dae Sung 
Published: October 2021

AbstractA photomultiplication‐type organic photodiode (PM‐OPD), where an electric double layer (EDL) is strategically embedded, is demonstrated, with an exceptionally high external quantum efficiency (EQE) of 2 210 000%, responsivity of 11 200 A W−1, specific detectivity of 2.11 × 1014 Jones, and gain–bandwidth product of 1.92 × 107 Hz, as well as high reproducibility. A polymer electrolyte, poly(9,9‐bis(3′‐(N,N‐dimethyl)‐N‐ethylammoinium‐propyl‐2,7‐fluorene)‐alt‐2,7‐(9,9‐dioctylfluorene))dibromide is employed as a work‐function‐modifying layer of indium tin oxide (ITO) to construct an EDL‐embedded Schottky junction with p‐type polymer semiconductor, poly(3‐hexylthiophene‐diyl), resulting in not only advantageous tuning of the work function of ITO but also an enhancement of the electron‐trapping efficiency due to electrostatic interaction between exposed cations and trapped electrons within isolated acceptor domains. The effects of the EDL on the energetics of the trapped electron states and thus on the gain generation mechanism are confirmed by numerical simulations based on the drift–diffusion approximation of charge carriers. The feasibility of the fabricated high‐EQE PM‐OPD especially for weak light detection is demonstrated via a pixelated prototype image sensor. It is believed that this new OPD platform opens up the possibility for the ultrahigh‐sensitivity organic image sensors, while maintaining the advantageous properties of organics.
Wafer‐Scale Electroactive Nanoporous Silicon: Large and Fully Reversible Electrochemo‐Mechanical Actuation in Aqueous Electrolytes
Authors: Brinker Manuel , Huber Patrick 
Published: October 2021

AbstractNanoporosity in silicon results in interface‐dominated mechanics, fluidics, and photonics that are often superior to the ones of the bulk material. However, their active control, for example, by electronic stimuli, is challenging due to the absence of intrinsic piezoelectricity in the base material. Here, for large‐scale nanoporous silicon cantilevers wetted by aqueous electrolytes, electrosorption‐induced mechanical stress generation of up to 600 kPa that is reversible and adjustable at will by potential variations of ≈1 V is shown. Laser cantilever bending experiments in combination with in operando voltammetry and step coulombmetry allow this large electro‐actuation to be traced to the concerted action of 100 billions of parallel nanopores per square centimeter cross‐section and determination of the capacitive charge–stress coupling parameter upon ion adsorption and desorption as well as the intimately related stress actuation dynamics for perchloric and isotonic saline solutions. A comparison with planar silicon surfaces reveals mechanistic insights on the observed electrocapillarity (Hellmann–Feynman interactions) with respect to the importance of oxide formation and wall roughness on the single‐nanopore scale. The observation of robust electrochemo‐mechanical actuation in a mainstream semiconductor with wafer‐scale, self‐organized nanoporosity opens up novel opportunities for on‐chip integrated stress generation and actuorics at exceptionally low operation voltages.
Perovskite‐Type SrVO3 as High‐Performance Anode Materials for Lithium‐Ion Batteries
Authors: Li Xiaolei , Lin Zifeng , Jin Na , Yang Xiaojiao , Du Yibo , Lei Li , Rozier Patrick , Simon Patrice , Liu Ying 
Published: October 2021

AbstractPerovskite‐type oxides, characterized by excellent multifunctional physical and chemical properties, are widely used in ferroelectric, piezoelectric, energy conversion, and storage applications. It is shown here that the perovskite‐type SrVO3 can achieve excellent electrochemical performance as lithium‐ion battery anodes thanks to its high electrically and ionically conductivity. Conducting additive‐free SrVO3 electrodes can deliver a high specific capacity of 324 mAh g−1 at a safe and low average working potential of ≈0.9 V vs Li/Li+ together with excellent high‐rate performance. A high areal capacity of ≈5.4 mAh cm−2 is obtained using an ultrathick (≈120 μm) electrode. Moreover, the fully lithiated SrVO3 electrode exhibits only 2.3% volume expansion that is explained by a simple solid‐solution Li+‐storage mechanism, resulting in good cycling stability of the electrode. This study highlights the perovskite‐type SrVO3 as a promising Li+‐storage anode and provides opportunities for exploring a variety of perovskite oxides as next‐generation metal‐ion battery anodes.
A Halogen‐Free and Flame‐Retardant Sodium Electrolyte Compatible with Hard Carbon Anodes
Authors: Colbin Lars Olow Simon , Mogensen Ronnie , Buckel Alexander , Wang Yong‐Lei , Naylor Andrew J. , Kullgren Jolla , Younesi Reza 
Published: October 2021

AbstractFor sodium‐ion batteries, two pressing issues concerning electrolytes are flammability and compatibility with hard carbon anode materials. Non‐flammable electrolytes that are sufficiently stable against hard carbon have—to the authors’ knowledge—previously only been obtained by either the use of high salt concentrations or additives. Herein, the authors present a simple, fluorine‐free, and flame‐retardant electrolyte which is compatible with hard carbon: 0.38 m sodium bis(oxalato)borate (NaBOB) in triethyl phosphate (TEP). A variety of techniques are employed to characterize the physical properties of the electrolyte, and to evaluate the electrochemical performance in full‐cell sodium‐ion batteries. The results reveal that the conductivity is sufficient for battery operation, no significant self‐discharge occurs, and a satisfactory passivation is enabled by the electrolyte. In fact, a mean discharge capacity of 107 ± 4 mAh g−1 is achieved at the 1005th cycle, using Prussian white cathodes and hard carbon anodes. Hence, the studied electrolyte is a promising candidate for use in sodium‐ion batteries.
Model‐Based Investigation of Trap‐Assisted Recombination in Photoelectrodes for Water Splitting
Authors: Cendula Peter , Sancheti Anmol , Simon Pavel 
Published: October 2021

AbstractThe efficiency of most semiconductor photoelectrodes for water splitting is limited by a slow reaction with electrolyte and a fast recombination. Among the recombination pathways, trap‐mediated recombination due to doping and material processing is often the dominant process. Impedance spectroscopy under illumination is a popular and powerful method to investigate time constants of recombination and reaction. Traditionally, an equivalent circuit is involved in the analysis of impedance spectroscopy, nevertheless, it provides limited direct information about the microscopic quantities related to diffusion, reaction, and recombination. In the present study, a theoretical model for diffusion‐limited photocurrent under small voltage bias and its application for the simplified evaluation of equivalent circuits for impedance analysis are presented. Full numerical simulations of the semiconductor transport equations are used to validate the theoretical model for typical values of carrier lifetime. This combination of theoretical approximations, equivalent circuit models, and full simulations provides an important background for the analysis of recombination and transport properties of photoelectrode materials.