bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fast and Accurate Load Flow Solution for On-line Applications Using ANN
Authors: Wael Abdullah Alsulami Wael Abdullah Alsulami 
Published: May 2021

This paper aims to develop a fast load flow computation technique without sacrificing accuracy for various on-line applications of large power systems. Both planning and operation of any power system requires the conduct of many load flow analyses corresponding to various operating modes with different system loading conditions and network configurations. Load flow analysis is performed for the determination of steady state operating status of power systems in terms of bus voltage magnitudes and angles, real and reactive powers and the transmission line losses. The load flow analysis involves the solution of non-linear algebraic equations and hence the conventional load flow algorithms are iterative in nature. The state-of-the-art approach for load flow analysis is based on Newton-Raphson algorithm (NRLF) or its derivatives such as fast decoupled load flow. As these methods are capable of providing the steady state solution within the specified accuracy, these techniques are effectively utilized as a planning tool by various utilities throughout the world. However, these are seen to be ineffective for on-line computations of practical large power systems because of the significant computational over-head due to the inherent iterative nature of such algorithms. Even though the non-iterative DC load flow approach, derived out of NRLF is computationally faster than the conventional techniques, solution accuracy is significantly less than that of its iterative counterparts. Hence, this paper proposes to develop a fast and accurate approach for the on-line load flow analysis. It is proposed to apply artificial neural network (ANN) technique as these are seen to be non-algorithmic in nature. The multi-layer feed-forward ANN for the load flow solution used in this study has one hidden layer with 100 neurons in addition to the input and output layers. The real and reactive power demands are given as the inputs to the ANN. The output consists of the bus voltage magnitudes and angles at the load buses. The proposed ANN is trained using the conventional NRLF load flow solution of a practical power grid at various load levels. The investigations revel that the ANN as a potential tool for the on-line load flow solution of practical power systems.
Biochemical Studies of Matrix Metalloproteinase (MMP) and tissue inhibitor of Metalloproteinase (TIMP) as New Biomarkers in HCV - Chronic liver disease
Authors: Elgzar M. Y., Elemshaty M.H., Amar E.A.T., Abdel Atty A.M., Elgzar M. Y., Elemshaty M.H., Amar E.A.T., Abdel Atty A.M., 
Published: May 2021

The present study aimed to investigate serum levels of Matrix Metalloproteinase (MMP9) and tissue inhibitor of Metalloproteinase (TIMP-1) as new biomarkers in HCV Chronic liver disease. Patients and methods: The study included 35 patients suffering from Chronic liver disease attending at Gastro Entrology Surgical Center (GEC), Mansoura University from 2016 to 2017 and 25 healthy individuals (HI) used as control group ,the studied groups were categorized into 14 patients (9 men and 5women; mean age 53.34±9.46yrs) suffering from HCC associated with HCV infection, 11patients (9 men and 2 women; mean age 52.34±9.14yrs) suffering from LC associated with HCV infection and 10 patients (7 men and 3women; mean age 48.9 ± 12.4yrs) suffering from Chronic Hepatitis (CH). Sera of all individuals were examined for TNF-α, LDH, AFP, ALT, AST, Albumin, T.Bilirubin, GGT, MMP-9 and TIMP-1 . Results: The obtained results showed a significant increase in serum ALT, AST, total Bilirubin and GGT and significant decrease of Albumin in liver disease groups (I, II and III) compared with Group IV. Significant increase in serum MMP9, TIMP1 in groups (I, II and III) when compared with HI group (IV). Significant correlation was recorded between MMP9 and TIMP1 in one hand and between each one with AST, T. bilirubin and Albumin concentration. Serum concentrations of TNF-α, AFP were elevated significantly in HCC patients compared to LC and CH but the difference between LC and CH was elevated significantly only (p<0.0001) in TNF-α. Significant association was recorded between TNF-α, LDH, AFP, ALT and AST Conclusion: MMP9 and TIMP1 could be used as new biomarker for evaluating disease progression of HCV-chronic liver disease
Evaluation of the cognitive technical levels of the students of Diyala University - Iraq
Authors: Yousry Abdel Wahab Mahmoud Yousry Abdel Wahab Mahmoud 
Published: May 2021

The Paper aims at studying the problem of arts levels Cognitive. The study is limited to students in the University of Diyala in the academic Year 2014-2015. The survey study is adopted. In order to measure the aim, the tool has setting that is comprising (15) questions. Then, the reliability of the tool is founded as the ration of experts, The researcher found out a group of conclusions, most significant among them are: -Students in the University of Diyala clearly suffer from arts which is arts levels Cognitive verified according to the study results. In the light of the study results, the researcher recommends the following: The necessity of reconsidering the syllabus of arts education in schools for it was set twenty years ago during which various developments took place in the field in Arabic and western countries , a fact that is urging us to follow their steps.-Enrolling current teachers in development and practical training courses relying on the syllabus attempting to improve their performance. We suggested making study, a comparative study arts levels Cognitive concerning among Iraqi Universities, students.
Пріоритетні напрями та механізми розвитку цифрової економіки в Україні
Authors: Шиманська Катерина Володимирівна , Бондарчук Віталій Вікторович 
Published: May 2021

Процес державотворення передбачає трансформацію всіх сфер життя суспільства, в тому числі й економічних відносин. Розвиток цифрової економіки України лише набирає обертів, і важливо правильно обрати напрям та інструменти її формування. Цифровізація економіки відбувається одночасно на макро- і мікрорівні. Необхідно будувати цифрове середовище національної економіки таким чином, щоб воно задовольняло потреби не лише держави в особі державних інституцій, але й громадян та бізнесу.
Дослідження формування і розвитку цифровізації економіки України показало, що цей процес має сильні та слабкі сторони. Використання сильних сторін може суттєво пришвидшити цифровізацію та забезпечити економічні вигоди для всіх суб’єктів економічних відносин в Україні. Цьому сприяють і наявні в нашій державі можливості. Проте необхідно також працювати над нівелюванням слабких сторін та вживати заходи щодо мінімізації загроз для цифровізації економіки. Запропоновані механізми цифровізації можуть забезпечити поступове впровадження цифрових технологій у стратегічних галузях вітчизняної економіки, які є фундаментом для подальшого процесу цифровізації. Необхідно створити такі умови, коли цифровізація є бажаною та забезпечує конкурентні переваги для бізнесу і зручність для споживачів. У такому випадку формування цифрової економіки в Україні відбуватиметься з ініціативи бізнесу та громадськості, які і є основними бенефіціарами цього процесу.
MATHEMATICAL MODEL OF RESOURCE-SAVING PRODUCTION TECHNOLOGY OF BAKED GOODS WITH AMARANTH FLOUR
Authors: SHISHKIN ANASTASIA , SADYGOVA MADINA , BELOVA MARIA , KIRILLOVA TATYANA 
Published: May 2021

Amaranth is a promising raw ingredients enriching bakery products, in the work used grade “Flight” Saratov breeding. The article discusses the effect of amaranth flour and the type of liquid that goes into the dough baking on the baking properties of the semi-finished product and the quality of the finished products from wheat flour with a satisfactory quality gluten. The moisture, acidity, porosity, structural and mechanical properties, gas-forming ability, lift and fermentation activity were investigated. For the manufacture of comparable samples used wheat flour, presented on the market of Saratov. Amaranth seeds of the variety “Flight” in the amount of 7, 10, 15 and 20 %. Analysis of the effect of amaranth flour on the structural and mechanical properties of the dough showed that adding 7% or more of amaranth flour significantly reduces the spreading of the dough. The index of fermentation activity of semi-finished products with the share of amaranth flour 20%, 15%, 10% and 7% was significantly higher than the control, at the beginning of fermentation. The introduction of amaranth flour in an amount of 7 to 20 % had a significant impact on the gas-forming ability of the wheat-amaranth dough and was characterized by an intense, “explosive” beginning of fermentation and a fairly rapid decline in fermentation intensity over time, especially in a sample with a share of amaranth flour 7 %. Kneading on goat milk whey had a positive effect on the studied parameters. According to the research results, the expediency of using flour from amaranth variety Flying in the technology of bakery products made from wheat flour with a satisfactory weak gluten in quality to give them functional properties has been proved. Based on the mathematical model, the optimal parameters of the process are determined: the amount of amaranth flour in the recipe for buns is 15 %, fermentation time - 85 min, dough kneading liquid - goat milk serum.
Hubungan Antara Minat Belajar Dengan Resiliensi Matematis Pada Masa Pandemi COVID-19
Authors: Murni Viviana , Dewi Rofina , Jehadus Emilianus , Sugiarti Lana 
Published: May 2021

Penelitian ini bertujuan untuk mengetahui hubungan antara minat belajar dengan resiliensi matematis siswa dalam menerapkan flipped classroom pada masa pandemi covid-19. Jenis penelitian yang digunakan adalah penelitian kuantitatif dengan pendekatan korelasional. Populasi penelitian merupakan seluruh siswa kelas XI TKJ di SMK Informatika Santu Petrus Ruteng tahun ajaran 2020/2021 berjumlah 124 siswa, sedangakan sampel diambil menggunakan teknik simple random sampling dengan jumlah sampel sebanyak 55 siswa. Teknik pengumpulan data dilakukan dengan metode angket. Data dianalisis menggunakan analisis regresi linear sederhana dengan untuk menghitung signifikansi regresi. Berdasarkan hasil analisis regresi diperoleh persamaan Ŷ = 46.04 + 0.56X t_hitung = 11.62 dan t_tabel = 2.00 maka H_o: ρ = 0 ditolak dan H_1: ρ> 0 diterima. Ini berarti, koefesien regresi (b = slope = 0.56) sangat signifikan. Sementara itu besarnya kontribusi variabel X terhadap Y yaitu r ^ 2 x 100% = (0.8474512 x 100% = 75.75%, Berdasarkan data tersebut, disimpulkan bahwa semakin tinggi minat belajar siswa, maka semakin tinggi pula resiliensi matematis siswa. Sebaliknya, semakin rendah minat belajar siswa, maka semakin rendah pula resiliensi matematis siswa
IMPACTOS TÉCNICO-ECONÔMICOS DA ADUBAÇÃO DE PASTOS
Authors: Avelino Cabral Carlos Eduardo , Cabral Carla Heloisa Avelino , Santos Alyce Raiana Monteiro , Motta Aline Müller , Mota Lucas Gimenes 
Published: May 2021

A criação de bovinos no Brasil ocorre, prioritariamente, em pastagens e, neste contexto, a adubação do pasto é uma importante estratégia de aumento na eficiência produtiva. Diante disso, objetivou-se, com esta revisão, descrever os impactos técnicos da adubação no desenvolvimento de gramíneas tropicais. A calagem é uma prática importante na disponibilidade dos nutrientes e, novos estudos visam demonstrar que o intervalo entre a incorporação do calcário e a semeadura tem maior dependência da umidade do solo e que é possível reduzir este período que tradicionalmente é de 60 a 90 dias. A adubação fosfatada tem maior impacto sobre a implantação do que a manutenção do pasto, e quando negligenciada na formação do pasto, observa-se um efeito residual sobre a rebrota. O nitrogênio e o potássio são os nutrientes mais extraídos na manutenção dos pastos, o que se torna importante o estudo da relação entre estes nutrientes, bem como a adoção da adubação potássica em sistemas em que a adubação nitrogenada é uma prática rotineira. A varredura, que consiste na mistura de sobras de fertilizantes em galpões, embora tenha baixo custo por quilo de produto, o uso pode ser antieconômico, o que depende da composição do insumo adquirido.
Palavras-chave: calagem; fertilização de pastos; formação de pastagens.

Technical and economic impacts of pasture fertilization

ABSTRACT: Cattle production on Brazil priority occurs in grasslands, in this context, pasture fertilization is an important strategy to improve production efficiency. Therefore, the aim with this review is to describe the technical impacts of fertilization on tropical grass development. Liming is an important practice in nutrient availability and new studies aim to demonstrate that the interval between limestone incorporation and seeding has more dependence on soil moisture, and that is possible to reduce this period, which traditionally is from 60 to 90 days. Phosphate fertilization has a greater impact on pasture implantation than maintenance, and when neglected in pasture formation, there is a residual effect on regrowth. Nitrogen and potassium are the nutrients extracted on pasture maintenance, which makes it important to study the relationship between these nutrients, as well as the adoption of potassium fertilization in systems where nitrogen fertilization is a routine practice. Mixing leftover fertilizers in warehouses, although it has a low cost per kilo of product, the use can be uneconomical, which depends on the input composition purchased.
Keywords: liming; pasture fertilization; pasture implantation.
Factors Affecting the Capacity of Accounting Software in Controlling Frauds and Errors in Small and Medium Enterprises (Smes): A Case Study of SMEs in Hanoi, Vietnam
Authors: Hang Ngo Thi Thu , Hai Vu Thi , Trung Tran Quang , Chien Vu Manh , Nga Nguyen Thi Hong 
Published: May 2021

Financial accounting information has impacted the operation of enterprises, especially SMEs. With the development of technology, digital accounting applications are playing an increasingly important role in minimizing mistakes, and ensuring the accuracy and timeliness of accounting information. Using multiple discriminant analyses, this study confirmed the significance of accounting software in reducing frauds and errors in SMEs’ businesses despite some drawbacks. It showed that the managers’ ability to access the software and the decentralization of power in accessing the accounting software were the two key factors deciding the success/failure of applying accounting software to control frauds and errors. In addition, smart applications of the accounting software positively contributed to the elimination of frauds in enterprises. Based on these results, recommendations are drawn for SMEs, such as investing more in smart applications of accounting software, as well as updating knowledge about accounting for management, in order to get more advantages from accounting software applications for their business in the long term.
The Place of the Sahel Region in the Theory of Regional Security Complex
Authors: Varga Márton 
Published: May 2021

The theory of regional security complex is one of the main theories of the regional approach of the international security system. The international organisations, the different strategies and concepts use many different definitions for the Sahel region. However, the ongoing changes of the global and the regional security and the complexity of the crisis of the Sahel region bring up the question whether the Sahel region is a unit based on the Regional Security Complex Theory or not? Which countries are part of the Sahel? Can it be treated as a region? In this article I will give my answer to that question.
On the Artistic Value of Literary Ekphrasis
Authors: Shangguan Zhangfan , Wang Dong 
Published: May 2021

As a language attribute that exists for visual arts, ekphrasis is not only a bridge to communicate poetry and painting, but also an important category in the cross-media and cross-disciplinary research of literature and art. Through the process of recreating paintings by using language as a medium, ekphrasis realizes the conversion from visual art to auditory art, and explores the richness of cognitive creation on the basis of the reproduction of visual art. In this process, the literary narrative diagram shows significant differences from the artistic doctrinal diagram, which are mainly reflected in the three levels of academic guiding ideology, narrative style difference, classic deconstruction and reconstruction, and language style writing paradigm. In addition, literary storytelling plays an important role in the writing of art history and the dissemination of artworks. It provides reference and inspiration for the current cross-border and in-depth integration of literature and art from the perspective of practical creation.
ERVİNG GOFFMAN’IN BENLİK KURAMI ÇERÇEVESİNDE İZLENİM YÖNETİMİ VE KİŞİLERARASI İLETİŞİME ETKİSİ ÜZERİNE BİR DEĞERLENDİRME
Authors: ZENGİN Ezgi 
Published: May 2021

Benlik sunumu kavramı son dönemde özellikle sosyoloji, psikoloji ve iletişim bilimleri alanlarında sıklıkla çalışılan konular arasında yer almaktadır. Bu çalışmada da benlik sunumu kavramı kişilerarası iletişim bağlamında incelenmiştir.
Yapılan çalışma, Erving Goffman’ın en çok alıntılanan metinlerinden Günlük Yaşamda Benliğin Sunumu (The Presentation of Self in Everyday Life) çalışması özelinde benlik, benlik sunumu ve insan doğası kavrayışlarına derinlemesine bir değerlendirme yapmayı amaçlamaktadır. Bu kapsamda öncelikle benlik ve benlik kuramcıları değerlendirilmiş, ardından Erving Goffman’ın kuramsal çerçevesi tanıtılarak benlik sunumu kavramı açıklanmış ve kavramların birbirleri ile olan ilişkisine değinilmiştir. Son olarak Goffman’ın sunmuş olduğu kuramın kişilerarası iletişime etkisi üzerinden bir tartışma yürütülmüştür.
c-Myc Upregulated by High Glucose Inhibits HaCaT Differentiation by S100A6 Transcriptional Activation
Authors: Zhang Jie , Yang Peilang , Liu Dan , Gao Min , Wang Jizhuang , Wang Xiqiao , Liu Yan , Zhang Xiong 
Published: May 2021

Keratinocyte differentiation dysfunction in diabetic skin is closely related to impaired skin barrier functions. We investigated the effects of c-Myc and S100A6 on Human immortal keratinocyte line (HaCaT) or keratinocyte differentiation and potential mechanisms. The expression levels of differentiation makers such as transglutaminase 1 (TGM1), loricrin (LOR), and keratin 1 (K1) were significantly reduced, while the expression of c-Myc was significantly increased in HaCaT cells cultured in high glucose and wound margin keratinocytes from diabetic rats and human patients. Overexpression of c-Myc caused differentiation dysfunction of HaCaT, while knocking down c-Myc promoted differentiation. High glucose increased the expression of c-Myc and inhibited differentiation in HaCaT cells by activating the WNT/β-catenin pathway. Moreover, inhibition of c-Myc transcriptional activity alleviated the differentiation dysfunction caused by high glucose or overexpression of c-Myc. c-Myc binds to the S100A6 promoter to directly regulate S100A6 expression and high glucose promoted S100A6 transcription. The expression of S100A6 was increased in HaCaT cultured with high glucose and wound margin keratinocytes from diabetic rats and human patients. However, the expression of S100A6 was decreased during normal HaCaT differentiation. HaCaT cells treated with S100A6 recombinant protein showed differentiation dysfunction. The expressions of TGM1, LOR and K1 in knockdown S100A6 HaCaT cells were higher than those in the control group. Overexpression of c-Myc or high glucose caused differentiation dysfunction of HaCaT cells, and was rescued by knocking down S100A6. These findings illustrate a new mechanism by which c-Myc upregulated by high glucose inhibits HaCaT differentiation by directly activating S100A6 transcription. Thus, c-Myc and S100A6 may be potential targets for the treatment of chronic diabetic wounds.
Effects of Manipulating Circulating Bile Acid Concentrations on Postprandial GLP-1 Secretion and Glucose Metabolism After Roux-en-Y Gastric Bypass
Authors: Jonsson Isabella , Bojsen-Møller Kirstine N. , Kristiansen Viggo B. , Veedfald Simon , Wewer Albrechtsen Nicolai J. , Clausen Trine R. , Kuhre Rune E. , Rehfeld Jens F. , Holst Jens J. , Madsbad Sten , Svane Maria S. 
Published: May 2021

BackgroundAltered bile acid (BA) turnover has been suggested to be involved in the improved glucose regulation after Roux-en-Y gastric bypass (RYGB), possibly via stimulation of GLP-1 secretion. We investigated the role of exogenous as well as endogenous BAs for GLP-1 secretion after RYGB by administering chenodeoxycholic acid (CDCA) and the BA sequestrant colesevelam (COL) both in the presence and the absence of a meal stimulus.MethodsTwo single-blinded randomized cross-over studies were performed. In study 1, eight RYGB operated participants ingested 200 ml water with 1) CDCA 1.25 g or 2) CDCA 1.25 g + colesevelam 3.75 g on separate days. In study 2, twelve RYGB participants ingested on separate days a mixed meal with addition of 1) CDCA 1.25 g, 2) COL 3.75 g or 3) COL 3.75 g × 2, or 4) no additions.ResultsIn study 1, oral intake of CDCA increased circulating BAs, GLP-1, C-peptide, glucagon, and neurotensin. Addition of colesevelam reduced all responses. In study 2, addition of CDCA enhanced meal-induced increases in plasma GLP-1, glucagon and FGF-19 and lowered plasma glucose and C-peptide concentrations, while adding colesevelam lowered circulating BAs but did not affect meal-induced changes in plasma glucose or measured gastrointestinal hormones.ConclusionIn RYGB-operated persons, exogenous CDCA enhanced meal-stimulated GLP-1 and glucagon secretion but not insulin secretion, while the BA sequestrant colesevelam decreased CDCA-stimulated GLP-1 secretion but did not affect meal-stimulated GLP-1, C-peptide or glucagon secretion, or glucose tolerance. These findings suggest a limited role for endogenous bile acids in the acute regulation of postprandial gut hormone secretion or glucose metabolism after RYGB.
Serum Interleukin-26 Is a New Biomarker for Disease Activity Assessment in Systemic Lupus Erythematosus
Authors: Brilland Benoit , Bach-Bunner Maxime , Gomes Christopher Nunes , Larochette Vincent , Foucher Etienne , Plaisance Marc , Saulnier Patrick , Costedoat-Chalumeau Nathalie , Ghillani Pascale , Belizna Cristina , Delneste Yves , Augusto Jean-François , Jeannin Pascale 
Published: May 2021

ObjectiveInterleukin-26 (IL-26) has a unique ability to activate innate immune cells due to its binding to circulating double-stranded DNA. High levels of IL-26 have been reported in patients with chronic inflammation. We aimed to investigate IL-26 levels in patients with systemic lupus erythematosus (SLE).MethodsIL-26 serum levels were quantified by ELISA for 47 healthy controls and 109 SLE patients previously enrolled in the PLUS study. Performance of IL-26 levels and classical markers (autoantibodies or complement consumption) to identify an active SLE disease (SLE disease activity index (SLEDAI) score &gt; 4) were compared.ResultsIL-26 levels were significantly higher in SLE patients than in controls (4.04 ± 11.66 and 0.74 ± 2.02 ng/mL; p = 0.005). IL-26 levels were also significantly higher in patients with active disease than those with inactive disease (33.08 ± 21.06 vs 1.10 ± 3.80 ng/mL, p &lt; 0.0001). IL-26 levels correlated with SLEDAI score and the urine protein to creatinine ratio (uPCR) (p &lt; 0.001). Patients with high IL-26 levels had higher SLEDAI score, anti-DNA antibodies levels, and uPCR (p &lt; 0.05). They presented more frequently with C3 or C4 complement consumption. Lastly, IL-26 showed stronger performance than classical markers (complement consumption or autoantibodies) for active disease identification.ConclusionsOur results suggest that, in addition to classical SLE serological markers, the measurement of IL-26 levels may be a useful biomarker for active disease identification in SLE patients.