bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancing Power Distribution Feeders Restoration with a Probabilistic Crew Dispatch Method: Case Studies using Historical Data from a Brazilian Power Distribution Company
Authors: Fanucchi Rodrigo Z. , Bessani Michel , Camillo Marcos H. M. , Soares Anderson da S. , London João B. A. , Darwin Willian , Maciel Carlos D. 
Published: July 2019

Abstract
This paper proposes a methodology to repair crews dispatch during distribution feeders restoration immediately after remotely controlled actions have been taken. Our method determines the sectors patrol sequence using the expected number of faults for each sector considering a previously calculated fault probability. Next, a road graph mapping of the buses is obtained by associating each bus with its real-world position. The crews’ route inside each sector is determined by the application of the nearest neighbor algorithm on that mapping. The case studies analyzed 24 real faults available in the database of a Brazilian power distribution company, and, a comparison was made between the time spent to locate the failures by simulating both the proposed methodology and the usual greedy strategy. The average time spent in localizing all the failures was from 9.49 % to 41.81 % shorter than in the usual method. Moreover, the speed and distance of repair crews showed weak influence in the crew dispatch methodology efficiency. Such results indicate an enhancement of the power distribution QoS indicators by using the proposed methodology to deal with faults.
Phytochemicals and antidiabetic activity of the aqueous extract of the Punica granatum fruit in streptozotocin-induced diabetic mice
Authors: Nguyen Thanh Hai , Thi Huyen Nguyen , Van Khanh Nguyen , Kim Thu Dang , Thanh Tung Bui 
Published: July 2019

Abstract
The present study investigated the phytochemicals and antidiabetic effect of the aqueous extract of the fruit of Punica granatum Linn. in streptozotocin (STZ)-induced diabetic mice. The fruit of P. granatum was extracted with water. The phytochemicals of the water extract were investigated by the liquid chromatography–tandem mass spectrometry (LC-MS/MS) method. The water extract of P. granatum at doses of 150 and 300 mg/kg body weight (bw) was administered to mice for 21 days, and blood glucose level, triglyceride, total cholesterol, low-density lipoprotein (LDL)-cholesterol, high-density lipoprotein-cholesterol, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) enzyme were estimated. Analyzed phytochemicals showed the fruit of P. granatum Linn has a high amount of phenolic and flavonoid compounds, which provide beneficial effect for this plant. The oral administration of the fruit extract of P. granatum at doses of 150 and 300 mg/kg bw for 21 days significantly reduced blood glucose level, triglycerides, serum cholesterol, LDL-cholesterol, AST and ALT enzyme. Our results suggested that the fruit extract of P. granatum has strong antidiabetic effect in STZ-induced diabetic mice. The fruit of this plant might be a potential source of drug for treatment of diabetes.
Development of Resilient Modulus Prediction Model for Granular and Noncohesive Soils of New Mexico
Authors: Hasan Md. Mehedi , Hasan Md. Amanul , Tarefder Rafiqul A. 
Published: July 2019

Abstract
The resilient modulus (MR) of unbound materials, i.e., base and subgrade, is an essential property for the Mechanistic-Empirical Pavement Design Guide (MEPDG). The MR of the unbound materials is highly dependent upon several factors such as physical properties of the materials, soil type, stress state, and moisture content. The MR values are usually determined by conducting repeated load triaxial compression tests in the laboratory. However, because of the complexity, difficulty, huge time, and effort associated with it, development of an MR prediction model based on soil physical properties has increasingly become an imperative. In this study, a model is developed to estimate the MR of base and noncohesive (A-2-4) subgrade soils that are commonly available in the state of New Mexico from a set of materials’ physical properties. First, subgrade and granular materials have been collected from different construction sites, and a laboratory MR test is conducted in accordance with the test standard AASHTO T-307, Standard Method of Test for Determining the Resilient Modulus of Soils and Aggregate Materials. The pertinent material constants (k1, k2, and k3) in the constitutive model have been evaluated from the laboratory test data using regression analysis. Materials coefficients are correlated to the selected physical properties. A new set of laboratory test results for another pavement site is used to verify the model. It is observed that the prediction model predicts MR values that agree well with the laboratory results. Therefore, the proposed model can be applied to the base and noncohesive subgrade soils for implementation in MEPDG.
Influence of Shear Rate on the Shear Strength of Discontinuities with Different Joint Roughness Coefficients
Authors: Wang Zhen , Gu Linlin , Shen Mingrong , Zhang Feng , Zhang Guokai , Deng Shuxin 
Published: July 2019

Abstract
Loading rate dependency is one of the significant time-dependent behaviors of rock and rock discontinuities. To investigate the shear rate– dependent behavior of the shear strength of discontinuities with different joint roughness coefficients (JRCs), direct shear tests with various shear rates were conducted on samples with artificial joint surfaces based on Barton’s standard profile lines. A new test method, called shear test with alternate shear rates, was introduced to verify the direct shear results, and a JRC weakening model was established to explain the mechanism of shear rate dependency of discontinuities and the influence of the JRC on shear rate dependency. Results revealed that the shear strength increased with an increase in shear rate and the shear rate dependency of discontinuities was significantly influenced by surface morphology. Hence, the greater the JRC is, the stronger the shear rate dependency will be. Results also demonstrated that the direct shear test is the process of the JRC resistance weakening and frictional resistance strengthening, and the shear rate dependency was caused by the time-dependent behavior of the crack growth.
Identification and Sizing of Neighboring Pits Using Three-Axis Magnetic Flux Leakage Technique
Authors: Azizzadeh T. , Safizadeh M. S. 
Published: July 2019

Abstract
Neighboring corrosion pits are one of the most frequently found defects in gas pipelines. Because of the interaction with each other, these defects accelerate the corrosion growth rates in the wall of the pipelines. Hence, it is meaningful to discriminate multiple neighboring pits from single isolated pits by analyzing their characteristics. This article presents the results of a study on the use of a three-axis magnetic flux leakage (MFL) technique for the identification and sizing of neighboring corrosion pits. Various patterns of two neighboring pits are considered by modifying the separation distances between them. Finite element modeling as well as experimental measurements is used to investigate the spatial distributions of the three MFL components (axial, radial, and circumferential) generated by the neighboring pits. The results indicate that the axial as well as the radial MFL components of the neighboring pits merge to one signature the closer the two defects are, and thus, no width sizing of the individual pits is possible anymore. In contrast, both pits are still discernible in the circumferential MFL signatures. The described method can help to identify neighboring corrosion pits and thus improve the sizing accuracy of MFL measurements.
Observations of Machining Performance during Turning AA6351-B4C Composite
Authors: Samy G. S. , Kumaran S. Thirumalai , Uthayakumar M. 
Published: July 2019

Abstract
This study investigates the machining characteristics of stir-cast AA6351-boron carbide composite under dry condition. The influences of input parameters on output responses, such as temperature rise, cutting force, tool wear, and surface roughness, are investigated. The monolayer titanium nitride–coated solid carbide insert tool CNMG120412 (80° diamond shaped with a nose radius of 1.2 mm) has been used to perform the experiments. The temperature and cutting forces are measured by using a FLIR infrared thermal image camera and piezoelectric dynamometer. The reduction in temperature is noted at a low spindle speed (Vc), which is due to the discontinuous chip formation. The increase in feed rate (f) has reduced the coefficient of friction (μ) as a result of a decrease in the friction angle. The lowest value of μ, 0.5567, is obtained at a low Vc and a high f. The increase in temperature at a high Vc reduces the specific cutting pressure and results in a low thrust force. The tool wear is examined by using a scanning electron microscope to analyze the wear mechanisms. At a high Vc, an increase in temperature reduces mechanical load and protects the tool from abrasion wear; it results in good surface finish. A low surface roughness value of 1.08 μm is achieved at a high Vc and ensures the surface quality.
Analysis of a Chlamydia epidemic model with pulse vaccination strategy in a random environment
Authors: Samantaa Guruprasad , Bera Shyam Pada Pada 
Published: July 2019

In this paper, we have considered a dynamical model of Chlamydia disease with varying total population size, bilinear incidence rate, and pulse vaccination strategy in a random environment. It has been shown that the Chlamydia epidemic model has global positive solutions and, under some conditions, it admits a unique positive periodic disease-free solution, which is globally exponentially stable in mean square. We have defined two positive numbers R1 and R2 (< R1). It is proved that the susceptible population will be persistent in the mean and the disease will be going to extinct if R1 < 1 and the susceptible population as well as the disease will be weakly persistent in the mean if R2 > 1. Our analytical findings are explained through numerical simulation, which show the reliability of our model from the epidemiological point of view.
The odd Nadarajah-Haghighi family of distributions: properties and applications
Authors: Nascimento Abraão D. C. , Silva Kássio F. , Cordeiro Gauss M. , Alizadeh Morad , Yousof Haitham M. , Hamedani G. G. 
Published: July 2019

Abstract
We study some mathematical properties of a new generator of continuous distributions called the Odd Nadarajah-Haghighi (ONH) family. In particular, three special models in this family are investigated, namely the ONH gamma, beta and Weibull distributions. The family density function is given as a linear combination of exponentiated densities. Further, we propose a bivariate extension and various characterization results of the new family. We determine the maximum likelihood estimates of ONH parameters for complete and censored data. We provide a simulation study to verify the precision of these estimates. We illustrate the performance of the new family by means of a real data set.
Rings in which every regular locally principal ideal is projective
Authors: El Khalfaoui Rachida , Mahdou Najib 
Published: July 2019

Abstract
In this article, we study the class of rings in which every regular locally principal ideal is projective called LPP-rings. We investigate the transfer of this property to various constructions such as direct products, amalgamation of rings, and trivial ring extensions. Our aim is to provide examples of new classes of commutative rings satisfying the above-mentioned property.
Perfil epidemiológico de mulheres mastectomizadas em um serviço de referência localizado no Vale do Taquari/RS
Authors: Lena Patricia Tirelli , Rempel Claudete , Coltro Douglas , Frigeri Caroline Dalla Lasta , Grave Magali Teresinha Quevedo 
Published: July 2019

Justificativa e Objetivos:O câncer de mama é o de maior incidência entre as mulheres no país, sendo a cirurgia a principal medida de
tratamento, associada ou não a terapias adjuvantes. O objetivo deste trabalho é verificar o número e identificar o perfil epidemiológico de
mulheres diagnosticadas com câncer de mama que realizaram mastectomia radical modificada em um hospital de referência, localizado
no Vale do Taquari, no Rio Grande do Sul. Métodos:Estudo epidemiológico retrospectivo, de abordagem quantitativa, no qual foram
averiguados 329 prontuários. As variáveis analisadas foram: idade, município de encaminhamento, escolaridade e raça. Resultados: Foram
realizadas 150 cirurgias de mastectomia radical entre janeiro de 2008 a junho de 2016, identificando-se mulheres de maioria branca, com
baixa escolaridade, na faixa etária superior a 50 anos, provenientes de 29 municípios da região estudada. Conclusão:O perfil epidemio-lógico da população atendida na referida região segue as características locorregionais e nacionais. Dada a alta incidência de câncer de
mama em brasileiras, o número acentuado de mulheres com baixa escolaridade acometidas e, o impacto da doença na qualidade de vida,
sugere-se a realização de estudos que verifiquem a evolução pós-operatória, reabilitação clínica, física, psicológica e social após cirurgia
de mastectomia radical.
Descritores:Mastectomia de Patey. Perfil de saúde. Epidemiologia. Câncer de Mama.
Pengembangan Asesmen Kinerja untuk Menilai Keterampilan Proses Sains Terintegrasi Siswa pada Konsep Ekosistem
Authors: Nurfitriani Nurfitriani , Wulan Ana Ratna , Anggraeni Sri 
Published: July 2019

This study was conducted to analyze about the development of the performance assessment in assessing the integrated science process skills on the concept of habitat in the ecosystem. The integrated science process skills require a higher knowledge based to be able to carry out a variety of science process skills in an integrated learning. Performance assessment development process starting from the preparation of the performance assessment, the assessment test in order to obtain the parts repaired and the device obtained a more complete assessment of performance. Descriptive method is used in this research. The study provides information that the instruments developed already proper for use to assess the integrated science process skills on the concept of habitat in the ecosystem. Judging from the achievement test scores on the implementation class development from the previous trials with an average score of integrated KPS by (70.00) and increased at the stage of implementation of (73.11) with good category. It also developed an effective performance assessment to assess the the integrated science process skills with validity of the assessment of performance has increased in every test try. The first trial has the validity number (0,56), the second trials has validity number (0.81) and the last trials has the validity number (0.86). It can be concluded the assessment was developed capable to assessing the integrated science process skills of students with very high the last valdity value.
Prostate-specific antigen is a predictor of the efficacy of salvage radiation therapy in patients with recurrent prostate cancer after radical prostatectomy
Authors: Bulychkin Р. V. , Tkachev S. I. , Matveev V. B. , Nazarenko A. V. 
Published: July 2019

The study objective is to determine advisability of radiation therapy in patients with recurrent prostate cancer after radical prostatectomy.Materials and methods. In our research 92 patients were treated by salvage radiation therapy after radical prostatectomy. The median of follow up is 48 months.Results. The rates of 1, 2 and 3 years disease-free survival were 96, 91 and 86 %. We received that prostate specific antigen doubling time <6 months and prostate specific antigen >0.5 ng/ml before salvage radiation therapy statistical significance associated with biochemical failure. The results of our study indicate two main negative factors in the prognosis of the efficacy of radiotherapy and combined hormone therapy in patients with biochemical or clinical locoregional recurrence – the period of prostate specific antigen doubling time less than 6 months (p = 0.035) after radical prostatectomy and a higher prostate specific antigen level, especially more than 0.5 ng/ml before salvage radiotherapy (p = 0.037).Conclusion. Taking into account the absence of differences in the results of treatment between groups of patients with clinical and biochemical recurrences, it is not advisable to postpone the implementation of salvage radiotherapy and recommend patients to repeat the study. Repeated studies of these patients, as a rule, are conducted after many months at a higher level of the prostate specific antigen, which is associated with a higher tumor activity and a worse prognosis of the disease.
Salvage high dose-rate brachytherapy for local recurrence of prostate cancer after different types of radical treatment
Authors: Solodkiy V. A. , Pavlov A. Yu. , Tsybulskiy A. D. , Dzidzariya A. G. , Pchelintsev A. S. 
Published: July 2019

Objective: at the primary analysis of prostate cancer treatment referring to the patients who have experienced high dose rate brachytherapy after a confirmed locally recurrent tumor having been treated with diverse treatment modes.Materials and methods. The research includes 28 patients aged 53 to 78 years old (average age is 66 years old) with histologically verified prostate cancer recurrence. Within the period 2015–2017 all the patients got a salvage high dose rate brachytherapy in the Russian Scientific Center of Roentgenradiology. Brachytherapy was carried out as 2 fractions with the single tumor dose of 12.5 Gy. There was a two-week gap between fractions with the total tumor dose of 25 Gy. The follow-up period is 9 to 36 months.Results and conclusion. Overall biochemical free survival rate is 82.1 %. There are 5 people having a growing prostatic specific antigen (PSA) while the case follow-up. There is 1 case of a confirmed local tumor recurrence. Significant factors of the disease progression after salvage brachytherapy are: risk group, pretreatment PSA high, time line from the background therapy to biochemical recurrence uprise and PSA level if there’s prostate cancer recurrence after the background therapy.
Pharmacoeconomic aspects of using enzalutamide and abiraterone for treatment of chemotherapy-naive patients with metastatic castration-resistant prostate cancer
Authors: Avxentyev N. A. , Frolov M. Yu. , Makarova Yu. V. 
Published: July 2019

Background. Enzalutamide and abiraterone are hormonal antineoplastic drugs used for treatment of metastatic castration-resistant prostate cancer (mCRPC). Both drugs were proved to be effective in randomized controlled trials.Objective. Pharmacoeconomic analysis of using enzalutamide and abiraterone for treatment of chemotherapy-naive patients with mCRPC from the perspective of Russian healthcare system in 2019.Materials and methods. We proposed a Markov model of mCRPC progression on three treatment options: enzalutamide, abiraterone or active monitoring with no antineoplastic treatment in the 1st line setting. The model was based on indirect treatment comparison of considered drugs. Modelling period was 5 years. The model was used for calculating per patient medical costs, and further cost–effectiveness, cost–utility and budget impact analysis.Results. Monthly medication costs of enzalutamide were 183 551 rubles, which were 23 766 rubles (11.5 %) less than for abiraterone (207 224 rubles). 5-year total medical costs for enzalutamide were 5633 thousand rubles per patient, that were 67 499 rubles (1.2 %) less than for abiraterone. Incremental cost/effectiveness ratio for enzalutamide vs active monitoring was 533 thousand rubles per one life-month gained, compared to 623 thousand rubles per one life-month gained for abiraterone. If 7328 mCRPC chemotherapy-naive patients receive enzalutamide, Russian government healthcare spending will be 495 million rubles (1.2 %) less, compared to abiraterone.Conclusion. With comparable costs enzalutamide is a cost-effective treatment option of chemotherapy-naive mCRPC patients, compared to abiraterone, in Russia.
SEMANTIC FEATURES OF THE PHRASEOLOGICAL UNITS WITH THE COMPONENT LIGHT THE WITHIN ARTISTIC DISCOURSE
Authors: Kuprieva Irina A. , Smirnova Stanislava B. , Belova Ludmila V. , Pugach Vladimir S. , S. Belozerova Marina , S. Lazareva Natalia 
Published: July 2019

Purpose: To conduct lexical and semantic analysis on the concept light in the artistic discourse of postmodern fiction.
Methodology: In this research, comparative method, search for synonyms, continuous sampling and seminal analysis are used.
Main Findings: As a result, it becomes obvious that the boundaries of the artistic concepts are extremely blurred and much wider than the boundaries of the corresponding non-artistic concepts. In conclusion, the concept light is frequently used in English artistic discourses, i.e. significant in the culture, and a special status in the semantic space of the concept light has the meaning of knowledge and information.
Applications: The study results can be used by students and universities.
Novelty/Originality: In this research, a model of the semantic features of the phraseological units with the component light is presented in a comprehensive and complete manner.
The Effectiveness Of Waste Cooking Oil Recycling Project-Based Learning To Improve Students’ High Order Thingking Skills
Authors: Sarif Yeni , Fadiawati Noor , Syamsuri M. Mahfudz Fauzi 
Published: July 2019

This study aimed to describe the effectiveness in project-based learning of waste cooking oil recycling to improving students’ high order thinking skills. The research design used was the The Matching-Only Pretest-Posttest Control Group Design. The population in this research was all of students in grade XI MIA one of Senior High School in Bandarlampung. The sample of the research was the students of class XI MIA 4 and XI MIA 6. The data analysis technique used was non parametric statistic test using Mann Whitney U to postestt value. The results of this study it can be seen from postest value. Postest value in the experiment class that is greater than the postest value in the control class as well as the <g> on the medium categorized in the experimental class and in the low control class indicate that project-based learning of waste cooking oil recycling can improve students' high order thinking skills. Keywords: high order thinking skills, waste cooking oil, project-based learning
Perbandingan Metode Regresi Logistik dan Random Forest untuk Klasifikasi Data Imbalanced (Studi Kasus: Klasifikasi Rumah Tangga Miskin di Kabupaten Karangasem, Bali Tahun 2017)
Authors: Purwa Taly 
Published: July 2019

Penelitian ini bertujuan untuk mendapatkan model terbaik untuk klasifikasi data imbalanced, yaitu rumah tangga sampel Susenas Maret 2017 di Kabupaten Karangasem, ke dalam kategori miskin atau tidak. Metode yang digunakan adalah Regresi Logistik dan Random Forest dimana masing-masing diterapkan skema cross validation (CV), yaitu stratified 5-fold CV, skema under sampling, oversampling dan combine sampling untuk mengatasi masalah data imbalanced serta proses feature selection. Hasil penelitian menunjukkan bahwa penerapan skema under sampling, oversampling dan combine sampling pada model Regresi Logistik memberikan efek meningkatnya rata-rata nilai sensitivity dan turunnya rata-rata nilai akurasi dan specificity. Sedangkan pada model Random Forest, efek tersebut hanya terlihat dari hasil skema under sampling saja. Proses feature selection dapat menurunkan varian nilai akurasi, specificity, sensitivity dan AUC pada model Regresi Logistik dan Random Forest hanya pada skema tertentu. Model terbaik secara keseluruhan adalah model model Regresi Logistik dengan skema combine sampling dan tanpa proses feature selection dengan rata-rata nilai akurasi, specificity, sensitivity dan AUC masing-masing sebesar 78,13%, 79,16%, 64,44% dan 77,77%.