bluuebunny/crossref_metadata_2025_split huggingface dataset:
Penerapan Metode Random Over-Under Sampling dan Random Forest Untuk Klasifikasi Penilaian Kredit
Authors: Syukron Akhmad , Subekti Agus 
Published: October 2020

AbstrakPenilaian kredit telah menjadi salah satu cara utama bagi sebuah lembaga keuangan untuk menilai resiko kredit, meningkatkan arus kas, mengurangi kemungkinan resiko dan membuat keputusan manajerial. Salah satu permasalahan yang dihadapai pada penilaian kredit yaitu adanya ketidakseimbangan distribusi dataset. Metode untuk mengatasi ketidakseimbangan kelas yaitu dengan metode resampling, seperti menggunakan Oversampling, undersampling dan hibrida yaitu dengan menggabungkan kedua pendekatan sampling. Metode yang diusulkan pada penelitian ini adalah penerapan metode Random Over-Under Sampling Random Forest untuk meningkatkan kinerja akurasi klasifikasi penilaian kredit pada dataset German Credit. Hasil pengujian menunjukan bahwa klasifikasi tanpa melalui proses resampling menghasilkan kinerja akurasi rata-rata 70 % pada semua classifier. Metode Random Forest memiliki nilai akurasi yang lebih baik dibandingkan dengan beberapa metode lainnya dengan nilai akurasi sebesar 0,76 atau 76%. Sedangkan klasifikasi dengan penerapan metode Random Over-under sampling Random Forest dapat meningkatkan kinerja akurasi sebesar 14,1% dengan nilai akurasi sebesar 0,901 atau 90,1 %. Hasil penelitian menunjukan bahwa penerapan resampling dengan metode Random Over-Under Sampling pada algoritma Random Forest dapat meningkatkan kinerja akurasi secara efektif pada klasifikasi tidak seimbang untuk penilaian kredit pada dataset German Credit. Kata kunci: Penilaian Kredit, Random Forest, Klasifikasi, ketidakseimbangan kelas, Random Over-Under Sampling AbstractCredit scoring has become one of the main ways for a financial institution to assess credit risk, improve cash flow, reduce the possibility of risk and make managerial decisions. One of the problems faced by credit scoring is the imbalance in the distribution of datasets. The method to overcome class imbalances is the resampling method, such as using Oversampling, undersampling and hybrids by combining both sampling approaches. The method proposed in this study is the application of the Random Over-Under Sampling Random Forest method to improve the accuracy of the credit scoring classification performance on German Credit dataset. The test results show that the classification without going through the resampling process results in an average accuracy performance of 70% for all classifiers. The Random Forest method has a better accuracy value compared to some other methods with an accuracy value of 0.76 or 76%. While classification by applying the Random Over-under sampling + Random Forest method can improve accuracy performance 14.1% with an accuracy value of 0.901 or 90.1%. The results showed that the application of resampling using Random Over-Under Sampling method in the Random Forest algorithm can improve accuracy performance effectively on an unbalanced classification for credit scoring on German Credit dataset. Keywords: Imbalance Class, Credit Scoring, Random Forest, Classification, Resampling
Model Fuzzy Mamdani Untuk Penilaian Tingkat Kepuasan Pelayanan Pengaduan Masyarakat
Authors: Martin Martin , Nilawati Lala 
Published: October 2020

AbstrakKualitas pelayanan adalah salah satu keunggulan kompetitif, karena pelayanan yang baik adalah salah satu faktor dasar yang mampu mempengaruhi tingkat kenyamanan penerima layanan. Pelayanan publik oleh aparatur pemerintah dewasa ini masih banyak dijumpai kelemahan, sehingga belum dapat memenuhi kualitas yang diharapkan masyarakat. Penelitian ini ditujukan untuk melihat seberapa besar kepuasan pelayanan, dan pengaruh tingkat pelayanan terhadap tingkat kepuasan berdasarkan Logika Fuzzy Inference System Model Mamdani. Ada empat variabel input yang digunakan yaitu kejelasan informasi, kejelasan persyaratan, kemampuan petugas dan ketersediaan sarana dan prasarana untuk menghasilkan output kepuasan pelayanan. Berdasarkan tahapan-tahapan menggunakan Logika Fuzzy Inference System Model Mamdani mulai dari pembentukan himpunan fuzzy, aplikasi fungsi impilkasi, komposisi aturan sampai proses penegasan (defuzzyfikasi), dapat dibuktikan adanya korelasi antara variabel-variabel input sehingga dapat menentukan output hasil kepuasan pelayanan. Hasil penelitian ini diharapkan dapat digunakan oleh pihak instansi, sebagai pendukung sistem keputusan terhadap hasil penilaian yang diberikan oleh masyarakat untuk pelayanan yang dirasakan. Pengembangan penelitian ini kedepan nya akan diuji coba kembali dengan menambahkan lebih banyak variabel dan akan dibuat sebuah interface untuk memudahkan pemprosesan hasil penilaian kualitas pelayanan pengaduan masyarakat. Kata Kunci: Pelayanan, Fuzzy Mamdani, Logika Fuzzy.AbstractService quality is one of the competitive advantages, because good service is one of the basic factors that can affect the comfort level of service recipients. Public services by the government apparatus today are still often found to be weak, so that they cannot meet the quality expected by the community. This study is intended to see how much service satisfaction is, and the effect of service levels on satisfaction levels based on Mamdani Model Fuzzy Inference System Logic. There are four input variables used namely clarity of information, clarity of requirements, ability of officers and availability of facilities and infrastructure to produce service satisfaction output. Based on the stages using Mamdani Model Fuzzy Inference System Logic starting from the formation of fuzzy sets, application of the implementation function, composition of the rules until the confirmation process (defuzzyfication), it can be proved the correlation between input variables so that it can determine the output of service satisfaction. The results of this study are expected to be used by the agency, as a support system for the decision on the results of the assessment given by the community for perceived services. The future development of this research will be re-tested by adding more variables and an interface will be created to facilitate the processing of the results of the quality assessment of public complaints services. Keywords: Service, Fuzzy Mamdani, Fuzzy Logic.
Sorption of rare earth coordination compounds
Authors: Cheremisina Olga , Cheremisina Elizaveta , Ponomareva Maria , Fedorov Аleksander 
Published: October 2020

Rare earth elements (REEs) are valuable and strategically important in many high-technology areas, such as laser technology, pharmacy and metallurgy. The main methods of REE recovery are precipitation, extraction and sorption, in particular ion exchange using various sorbents, which allow to perform selective recovery and removal of associated components, as well as to separate rare earth metals with similar chemical properties.
The paper examines recovery of ytterbium in the form of coordination compounds with Trilon B on weakly basic anion exchange resin D-403 from nitrate solutions. In order to estimate thermodynamic sorption parameters of ytterbium anionic complexes, ion exchange process was carried out from model solutions under constant ionic strength specified by NaNO3, optimal liquid to solid ratio, pH level, temperatures 298 and 343 K by variable concentrations method. Description of thermodynamic equilibrium was made using mass action law formulated for ion exchange equation and mathematically converted to linear form. Values of equilibrium constants, Gibbs free energy, enthalpy and entropy of the sorption process have been calculated. Basing on calculated values of Gibbs energy, a sorption series of complex REE ions with Trilon B was obtained over anion exchange resin D-403 from nitrate solutions at temperature 298 K. Sorption characteristics of anion exchange resin have been estimated: total capacity, limiting sorption of complex ions, total dynamic capacity and breakthrough dynamic capacity.
Development of the drilling mud composition for directional wellbore drilling considering rheological parameters of the fluid
Authors: Ulyasheva Nadezhda , Leusheva Ekaterina , Galishin Ramil 
Published: October 2020

Article presents investigations on the development of a drilling mud composition for directional wells in an oil field located in the Republic of Tatarstan (Russia). Various rheological models of fluid flow and their applicability for drilling muds are analyzed. Laboratory experiments to measure the main rheological parameters of a solution, such as plastic viscosity, dynamic shear stress, as well as indicators of non-linearity and consistency are presented.
On the basis of laboratory investigations, it was concluded that high molecular weight polymer reagents (for example, xanthan gum) can give tangible pseudoplastic properties to the washing fluid, and their combination with a linear high molecular weight polymer (for example, polyacrylamide) reduces the value of dynamic shear stress. Thus, when selecting polymer reagents for treating drilling muds at directional drilling, it is necessary to take into account their structure, molecular weight and properties. Combination of different types of reagents in the composition of the drilling mud can lead to a synergistic effect and increase the efficiency of the drilling process as a whole.
5α-Reductase Inhibitors Do Not Prevent the Development and Progression of Urothelial Cancer: In Vitro Evidence
Authors: Nagata Yujiro , Goto Takuro , Jiang Guiyang , Teramoto Yuki , Miyamoto Hiroshi 
Published: October 2020

BACKGROUND: Androgen receptor (AR) activation has been implicated in the pathogenesis of urothelial cancer. However, it remains controversial whether 5α-reductase inhibitors (5α-RIs), which are known for blocking the conversion of testosterone to the more potent androgen dihydrotestosterone and often prescribed for the treatment of, for instance, benign prostatic hyperplasia, contribute to preventing the development of bladder cancer. OBJECTIVE: To determine the role of 5α-RI therapy in urothelial tumorigenesis and tumor progression, using cell line models. METHODS: In a human non-neoplastic urothelial SVHUC subline stably expressing a full-length wild-type human AR (SVHUC-AR) with carcinogen/MCA challenge and human bladder cancer lines, we assessed the effects of three 5α-RIs, dutasteride (up to 100 nM), finasteride (up to 500 nM), and epristeride (up to 5 μM), on neoplastic/malignant transformation and cell growth, respectively. RESULTS: In AR-positive bladder cancer UMUC3 and 5637-AR cells, an AR antagonist bicalutamide significantly inhibited their proliferation, whereas three 5α-RIs failed to do. Similarly, these 5α-RIs did not significantly inhibit the migration of bladder cancer cells induced by the treatment of testosterone which could be metabolized into dihydrotestosterone in culture medium. In MCA-SVHUC-AR cells, induction of their neoplastic transformation by testosterone, which was prevented by bicalutamide, was confirmed. However, no significant inhibitory effects of 5α-RIs on the neoplastic transformation of AR-positive urothelial cells treated with or without testosterone were observed. CONCLUSIONS: Using in vitro models for urothelial cancer, 5α-RI treatment even at supra-pharmacological doses was thus found to have no significant impact on the prevention of both tumorigenesis and tumor progression.
Lower limb muscle and joint forces during front and back squats performed on a Smith machine
Authors: Bini Rodrigo , Lock Megan , Hommelhoff Gedd 
Published: October 2020

BACKGROUND: Comparison of knee loads on a Smith machine, which is utilised for maintenance of health and rehabilitation, has not been attempted. OBJECTIVE: This study compared lower limb muscle and knee joint forces during front and back squats performed on a Smith Machine. METHODS: Eleven participants performed front and back squats with loads at 40%, 60% and 80% of their back squat 1-RMs. Ground reaction forces and three-dimensional full body motion were collected and used for modelling lower limb muscle and knee joint forces. RESULTS: Larger loads increased tibiofemoral compressive force during back squat at 80% compared to 40% ([Formula: see text] 0.01; [Formula: see text] 1.58) and to 60% ([Formula: see text] 0.01; [Formula: see text] 1.37). Patellofemoral compressive ([Formula: see text] 0.96) and tibiofemoral shear forces ([Formula: see text] 0.55) were not influenced by external load or type of squat. Gluteus medius and minimus produced more force at 80% compared to 60% ([Formula: see text] 0.01; [Formula: see text] 1.10) and to 40% ([Formula: see text] 0.01; [Formula: see text] 1.87) without differences for other muscles ([Formula: see text] 0.09–0.91). CONCLUSIONS: Greater external load was associated with increase in gluteus medius and minimus force and with increased tibiofemoral compressive force without effects on tibiofemoral shear force, patellofemoral compressive force or other lower limb muscle forces.
Nonimmune hydrops fetalis management from the perspective of fetal cardiologists: A single tertiary center experience from Egypt
Authors: Rakha S. , Elmarsafawy H. 
Published: October 2020

BACKGROUND: Despite advances in managing nonimmune hydrops fetalis (NIHF), perinatal mortality is still significant. Fetal cardiac failure eventually occurs regardless of etiology. However, no previous study has addressed NIHF from fetal cardiologists’ perspective. Therefore, we evaluated etiology and management of a NIHF cohort requiring fetal cardiologist consultation in a developing country. METHODS: A single-center retrospective cohort study of 70 cases with NIHF that were referred to a fetal cardiology unit over four years was performed. Demographics, etiologic diagnosis, and outcomes of the cases were assessed. Antenatal management was evaluated using cardiovascular profile score (CVPS). RESULTS: The most frequent diagnosis was Idiopathic hydrops 42(62.6%), followed by hydrops due to cardiac diseases 19(28.4%), and 3 dead fetuses were detected at the first fetal echocardiography. Treatment of fetal tachyarrhythmia ( n = 7) had 100% success rate in terms of antenatal hydrops resolution. Digoxin was used in cases of structural heart diseases, twin- twin transfusion syndrome, and dilated cardiomyopathy with perinatal mortality occurring in all cases ( n = 9). In cases of idiopathic hydrops, 14 fetuses received digoxin with intrauterine hydrops resolution in 2/14 (14%) while non-treated cases had intrauterine or early neonatal death. CONCLUSION: Nonimmune hydrops is the worst complication of diverse etiologies. Limitations in resources for advanced investigations in developing countries increase the possibility of categorizing NIHF as idiopathic. Tachyarrhythmia induced hydrops can be entirely reversed with antenatal therapy while non-tachyarrhythmia fetal cardiac disease outcomes are unfavorable regardless of therapy. On the other hand, idiopathic hydrops shows a limited potential response to digoxin in utero.
Ultrasound-assisted liquid-liquid extraction for the determination of methadone in urine samples using gas chromatography-mass spectrometry
Authors: Shekari Ahmad , Valipour Rooholah , Setareh Mehrdad , Soltaninejad Kambiz 
Published: October 2020

Background: Methadone abuse and dependence has been reported as a growing concern in some countries. In present study, a rapid, simple, easy and sensitive method for determination of methadone in human urine samples for use in clinical and forensic toxicology and drug screening laboratories was developed and validated.
Methods: We determined methadone in urine sampled by gas chromatography/mass spectrometry (GC/MS) and used ultrasound assisted liquid-liquid extraction (UALLE) method for the extraction and preconcentration of methadone before analysis.
Results: The limit of detection was 2.1 ng/mL and the limit of quantification 7 ng/mL. Correlation coefficient was 0.9984 for the methadone calibration curve in linear range from 7 to 10,000 ng/mL. The method is accurate and precise. Recovery was in the range of 81.3 % to 97.4 % and enrichment factor was 8.7. The method was successfully applied for determining methadone in clinical and postmortem urine samples.
Conclusions: The present method is a rapid, simple, easy and sensitive procedure and can be used in clinical and forensic toxicology laboratories as routine method for qualitative and quantitative analysis of methadone.
PEMBENTUKAN VOCATIONAL SKILL MELALUI PRAKTEK KERJA INDUSTRI (PRAKERIN) DI SENTRA PRODUKSI ROTI SISWA MADRASAH ALIYAH AL KHIDMAH NGRONGGOT KAB. NGANJUK
Authors: Badrus Badrus , Turmudi Turmudi 
Published: October 2020

Pengabdian kepada masyarakat ini difokuskan pada pendampingan pembentukan Vocational Skill siswa dalam pemasaran roti melalui praktek kerja industri di Kecamatan Ngronggot Kab. Nganjuk.Tujuan utama pengabdian ini untuk membentuk skil siswa dalam proses pemasaran roti. Peneltian ini menggunakan metode participatory action research(PAR). Hasil penelitian menjelaskan bahwa aktivitas siswa dalam pemasaran roti dimulai dari cara memasak roti yang benar. Yakni mengenal bahan roti yang lengkap, prosedur memasak secara tepat. Sementara dari sisi pemasaran dimulai dari pendataan sasaran pemasaran, ikut memasarkan pada pelanggan dan pasar-pasar baru. Merancang pemasaran secara online dilakukan dengan pembuatan blog di internet, face book, instagram, twitter, dan WA. Dari pelaksanaan pendampingan ini akhirnya dapat menghasilkan skil pemasaran dan pemasaran roti menjadi meningkat. Berkat pendampingan dosen dapat memperkuat hubungan (link) antara perguruan tinggi, sekolah dan pengusaha secara harmonis dan bersama-sama membangun kerja sama dalam pengembangaan ekonomi masyarakat.
RESULTS OF STATISTICAL ANALYSIS OF SERVICE EVALUATION OF POLICE OFFICERS OF THE POLICE OF THE CZECH REPUBLIC
Authors: JEDINÁK PETR , ČANDÍK MAREK 
Published: October 2020

At present there are increasing demands for security. The Police of the Czech Republic are aware that without educated and motivated employees their activities will not be professionally developed at the required pace. Senior management has a number of tools to improve performance and one of the main features is to identify a quality staff appraisal system. The article presents the results of research concerning the issue of evaluation of police officers of the Police of the Czech republic, which was carried out at the beginning of 2019. The obtained results were processed by standard statistical methods.
Pacientes não urgentes em unidade de pronto socorro: prevalência de sintomas depressivos
Authors: Coelho Camila Ferreira Cruz , Stein Airton Tetelbom , Pereira Reobbe  Aguiar 
Published: October 2020

Identificar a frequência de sintomas depressivos em pacientes caracterizados como não urgentes atendidos no pronto socorro do Hospital Regional de Guaraí – TO - Brasil. Estudo descritivo, com amostra probabilística aleatória, considerando uma frequência de consultas não urgentes de 80% com um erro aceitável de 5%, o tamanho da amostra estimado foi de 198 para o nível de confiança de 95% e com um efeito de delineamento de 1.0. Foram aplicados questionários aos pacientes classificados como não urgentes. Utilizou - se variáveis quanto a faixa etária, gênero, estado civil, serviço de atendimento à saúde e instrumento CES – D para o rastreamento de sintomas depressivos. Realizado estatística descritiva, com análise de média, desvio padrão para variáveis contínuas e percentual para as variáveis categóricas. A pesquisa apontou que 93 pacientes do sexo feminino apresentaram sintomas depressivos, enquanto os pacientes do sexo masculino contabilizaram 54 casos atendidos na Unidade de Emergência. A prevalência de jovens com sintomas depressivos foi de 63 casos, enquanto os adultos contabilizaram 45 e os idosos 39. A incidência de pessoas sem companheiro com depressão ocorreu em 87 dos casos, todavia, entre os pacientes com companheiro contabilizou 60 ocorrências. A ocorrência de pacientes com a presença dos sintomas depressivos se deu em 89 casos pouco urgentes enquanto a prevalência de não urgentes foi de 58 dos casos atendidos pela Unidade de Emergência. Considerando a correlação entre, procura de atendimentos não urgente na atenção secundária e depressão, torna-se necessário o planejamento de estratégias que possibilitem efetivar o processo de identificação e diagnóstico precoce de pacientes depressivos.
Conhecimento e atitude de adolescentes sobre a vacinação contra HPV
Authors: Ferreira Hellen Lívia Oliveira Catunda , Mendes Cícero Siqueira , Tavares Tainan Maria Cruz Lopes , Bezerra Richardson Lopes , Soares Paula Renata Amorim Lessa , Ribeiro Samila Gomes , Pinheiro Ana Karina Bezerra 
Published: October 2020

Objetivo: Analisar o conhecimento e atitude de adolescentes sobre à vacinação contra o HPV. Metodologia: Trata-se de um estudo descritivo, transversal. Foi aplicado um questionário à adolescentes do sexo feminino, estudantes de escolas públicas de ensino fundamental da cidade de Fortaleza. Os dados foram organizados e analisados por meio do programa estatístico Statistical Package for the Social Sciences (SPSS) versão 20.0. Resultados: Verificou-se que 72 (60%) adolescentes tinham conhecimento inadequado, todas já tinham ouvido falar sobre o HPV e sua vacinação, porém as adolescentes não conheciam a indicação da vacina contra o HPV. Porém atitude sobre a vacinação contra o HPV foi adequada em 112 (93,3%) das pesquisadas. Quanto à associação entre variáveis sociodemográficas e sexuais com o conhecimento, foram observadas associações significativas que foram com raça e renda. Conclusão: As adolescentes têm, em sua maioria, conhecimento inadequado e atitude adequada sobre a vacina contra o HPV. O conhecimento inadequado está relacionado com cor não branca e baixa renda, demostrando que as vulnerabilidades sociais impactam negativamente.
CRIME CONTROL OU DOING BUSINESS : QUELLE POLITIQUE PENALE EN MATIERE ECONOMIQUE ET FINANCIERE?
Authors: Golovko Léonid 
Published: October 2020

Comment expliquer certaines tentatives de prévoir des dispositions pénales déragatoires en matière économique et financière, notamment en procédure pénale ? Il est possible de dégager deux logiques hypothétiques, celle duCrime Control, où le droit pénal doit devenir plus efficace dans la lutte contre la criminalité économique et financière, et celle duDoing Business, où le droit pénal doit quasiment disparaître du champs économique pour ne pas nuire à l’activité commerciale. Le droit pénal russe se présenteactuellement,plutôt comme un exemple du mouvement Doing Business, ce qui apporte plus de problèmes que de résultats positifs. Il en résulte que la logique Doing Business ne peut être un principe de politique pénale en matière économique et financière.