bluuebunny/crossref_metadata_2025_split huggingface dataset:
Rancang Bangun Multilevel Boost Converter Untuk Catu Daya Motor Arus Searah Pada Kendaraan Listrik Berbasis Mikrokontroler
Authors: Soedjarwanto Noer , Komalasari Endah , Asadila Venus 
Published: June 2019

Abstrak— Rangkaian multilevel boost converter memiliki prinsip kerja yang sama dengan boost converter konvensional namun rasio tegangan keluarannya lebih tinggi. Dimana tegangan keluaran dari multilevel boost converter ini akan digunakan sebagai catu daya untuk mengendalikan kecepatan putar motor arus searah (MAS). Kemudian akan dilakukan perbandingan antara tegangan keluaran multilevel boost converter dengan boost converter konvensional yang digunakan sebagai catu daya MAS. Pada penelitian ini nilai tegangan keluaran multilevel boost converter saat dihubungkan pada MAS dengan duty cycle 20% yaitu 80,3 volt dan MAS sudah mulai berputar dengan kecepatan 350 rpm. Sementara tegangan keluaran boost converter konvensional sebesar 39,4 volt namun MAS belum dapat berputar pada duty cycle 20% dan tegangan masukan yang sama yaitu 12,3 volt. Kemudian dilakukan penambahan beban MAS pada pengujian multilevel boost converter. Dimana semakin berat beban pada MAS maka torsinya akan meningkat. Dengan demikian perangkat multilevel boost converter dapat digunakan sebagai catu daya MAS untuk kendaraan listrik. Kata kunci: Multilevel boost converter, boost converter, motor arus searah Abstract—Multilevel boost converter circuit has the same working principle with conventional boost converter. Hence, the ratio of its output voltage is higher that will be used as power supply for controlling the rotational speed of MAS. Then, there will be comparison among the output voltage of multilevel boost converter and conventional boost converter which will be used as power supply of MAS. On this research, the output voltage value of multilevel boost converter which is connected with MAS at the duty cycle 20 % is 80,3 volt. Furthermore, it had rotated at the speed of 320 rpm. Meanwhile, the output voltage of boost converter conventional is 39,4 volt. On the contrary, MAS can not rotated at the duty cycle of 20 % with the same input voltage that will be 12,3 volt. Then, it will be added with load of MAS for multilevel boost converter testing. While the load of MAS is heavier, its torque will be increased too. Therefore, multilevel boost converter device can be used as power supply of MAS for electric vehicles. Keywords: Multilevel boost converter, boost converter, direct current motor
Analisis Data E-Absensi untuk Menganalisis Perbandingan Pola Disiplin Kerja menggunakan Algoritma Clustering K-Means
Authors: Atmojo Reksa Suhud Tri 
Published: June 2019

AbstractData mining is a process for finding useful information from a large collection of databases. In this study, we will process the data in the e-attendance system using the K-Means K = 3 algorithm using Orange software. The results of this study resulted in the analysis of patterns of work discipline behavior by looking at the late percentage and number of attendance taken from the data of Time Attendance at SD Negeri X Taman Fajar in Purbolinggo Subdistrict and Y Public Health Center in Negara Nabung Village, East Lampung Regency so that it could be considered by agencies related to an increase in the level of employment discipline. From this research, it can be concluded that clustering C1, C2, and C3 can be concluded that the level of work discipline at the time of Ramadhan 1438 H which falls in July 2018 at Y Public Health Center employees is higher than SDN X Taman Fajar employees in terms of attendance, but when viewed from the level of discipline in the late percentage aspect, SDN X Taman Fajar employees are lower than Y Puskesmas employees.Keywords: Clustering, K-Means, Algorithm, E-Absensi, EmployeeAbstrakData mining merupakan suatu proses untuk menemukan informasi-informasi yang bermanfaat dari sekumpulan basis data yang berukuran besar. Pada penelitian ini akan mengolah data yang ada pada sistem e-absensi menggunakan algoritma K-Means K = 3 menggunakan perangkat lunak Orange. Hasil penelitian ini menghasilkan hasil analisis pola perilaku kedisiplinan kerja dengan melihat presentase telat dan jumlah kehadiran yang diambil dari data E-Absensi SD Negeri X Taman Fajar Kecamatan Purbolinggo dan Puskesmas Y yang berada di Desa Negara Nabung, Kabupaten Lampung Timur sehingga dapat menjadi pertimbangan bagi instansi terkait peningkatan tingkat kedisiplunan kerja. Dari penelitian, ini didapatkan kesimpulan pada clustering C1, C2, dan C3 dapat disimpulkan tingkat kedisiplinan kerja pada saat Bulan Ramadhan 1438 H yang jatuh pada bulan Juli 2018 di pegawai Puskesmas Y lebih tinggi dibandingkan dengan pegawai SDN X Taman Fajar dari segi jumlah kehadiran, namun jika dilihat dari tingkat kedisiplinan dalam aspek presentase telat, Pegawai SDN X Taman Fajar lebih rendah dibanding pegawai Puskesmas Y .Kata Kunci: Clustering, K-Means, Algoritma, E-Absensi, Pegawai
Analisis Kedip Tegangan Akibat Gangguan Hubung Singkat pada Sistem Jaringan Distribusi 20 KV di Penyulang Kenari Gardu Induk Seduduk Putih
Authors: Lestari Asri Indah , Barlian Taufik , Oktaviani Wiwin A 
Published: June 2019

Intisari — Kestabilan ditunjukkan oleh lama terjadinya kedip tegangan, lamanya kedip tegangan menunjukkan tingkat kestabilan tegangan pada sistem tenaga listrik. Salah satu parameter yang menunjukkan kualitas sistem tenaga listrik adalah tegangan. Tujuan dari penelitian ini adalah untuk mengidentifikasi besaran dan lokasi dimana arus gangguan hubung singkat terbesar dan menghitung besaran kedip tegangan di Penyulang Kenari. Kedip tegangan dihitung berdasarkan panjang penyulang yang mengalami gangguan, titik gangguan, impedansi sumber, reaktansi urutan transformator, impedansi urutan penyulang dan ekivalen jaringan, arus gangguan hubung singkat 1 fasa ke tanah, 2 fasa, 3 fasa, tegangan urutan setiap jenis gangguan. Hasil dari perhitungan menunjukkan arus gangguan hubung singkat terbesar untuk setiap jenis gangguan pada panjang total saluran 8,7 km dan 2,89 km berada di titik gangguan 20 % dari panjang total saluran, sedangkan kedip tegangan terbesar pada panjang total saluran 8,7 km untuk 1 fasa ke tanah dan 3 fasa berada di titik gangguan 100 %, 2 fasa berada di titik gangguan 80 %, dan pada panjang total saluran 2,89 untuk 1 fasa ke tanah berada di titik gangguan 80 %, 2 fasa dan 3 fasa di titik gangguan 100 %.Kata kunci — Kedip Tegangan, Gangguan Hubung Singkat, Penyulang Kenari.
Left Atrial Longitudinal Strain Evaluated by 2D Speckle Tracking Echocardiography Can Identify Patients with Heart Failure with Preserved Ejection Fraction
Authors: Bolog Mihaela , Dumitrescu Mihaela , Luminiţa Mârzan , Romanoschi Florentina , Păcuraru Elena , Râpă Alina 
Published: June 2019

Abstract

The aim of the paper is to investigate the utility of left atrial longitudinal strain (LALS) in the diagnosis of heart failure with preserved ejection fraction (HFpEF) when left ventricular diastolic function is indeterminable and the assessment of natriuretic peptides is not routinely performed.

Method. The study included 180 patients with signs and symptoms suggestive of non-acute heart failure, examined clinically and echocardiographically, both conventionally and via speckle tracking method.

Results. 33 patients had a normal echocardiographic examination. Diastolic dysfunction (DD) was present in 116 patients of whom 32 patients had grade I, 66 patients grade II, 18 patients grade III DD. Diastolic function could not be determined in 31 patients. The mean value of LALS and NTproBNP in patients with normal echocardiography was significantly different from the group with DD for both variables (p<0.001). LALS was inversely correlated with the grade of DD (r=-0.83, p<0.001). The cut-off value of LALS for predicting DD was 25%. Applying this value in patients with indeterminate diastolic function we identified 21 patients with HFpEF (p<0.001).

Conclusions. LALS can help in the diagnosis of HFpEF when other echocardiographic criteria are irrelevant and NTproBNP is not routinely performed. LALS was correlated with the presence and severity ofDDwith a cut-off value of 25%.
Present and Future in Treatment of Hodgkin Lymphoma
Authors: Turbatu Andrei , Coliţă Andrei , Stoian Marilena , Bordea Ana-Maria , Oprea Mădălina , Ghimici Cecilia , Gelatu Ionel , Ghimfus Loredana Alina , Stoica Andra Georgiana , Banu Cristina Elena , Lupu Anca-Roxana 
Published: June 2019

Abstract
Hodgkin lymphoma, formerly known as Hodgkin disease, has gone from an incurable disease to one with a cure rate of almost 75%. The disease is defined in terms of its microscopic appearance (histology) and the expression of cell surface markers (immunophenotype), but its biologic behavior and clinical characteristics are also important.
Treatment of Hodgkin lymphoma is tailored to disease type, disease stage, and an assessment of the risk of resistant disease. General treatment modalities include radiation therapy, induction chemotherapy, salvage chemotherapy, and hematopoietic stem cell transplantation.
Analysis of internationalization trends in the construction industry with an overview on Croatian construction companies
Authors: Butković Lana Lovrenčić , Mihić Matej 
Published: June 2019

Abstract
Today’s level of globalization and intensifying of competition have resulted in increased number of companies that aim to internationalize their business, and internationalization is gaining more and more significance among the research community. There are not only many perceived benefits of conducting business activities outside one’s home country but also additional risks, challenges and barriers. Construction industry is specific in its nature as it is an extremely regulated profession. This presents an additional challenge to the construction companies seeking to internationalize their business. The goal of the paper is to analyze the current levels of internationalization on the global construction market and to gain insight into future trends, which are achieved by analyzing business data regarding the international construction sector and the data on international results of the Croatian construction companies. The paper first presents the development of the international construction market, followed by the report on the current state of the internationalization in the construction industry as well as on future trends. Finally, the paper presents an overview on the Croatian construction companies and their performance on the foreign markets and gives guidelines or potential growth strategies to participate on the foreign markets.
Influence of Different Training Systems on the Beginning of Domestic Plum Production and Yield
Authors: Grāvīte Ilze , Kaufmane Edīte , Ikase Laila , Cirša Edgars 
Published: June 2019

Abstract
All growers prefer to obtain a first harvest as soon as possible. The aim of this study was to identify an effective tree training system for new Latvian plum cultivars, which provides the highest yield and fruit quality. The trial was established in 2012 at the Institute of Horticulture (formerly Latvia State Institute of Fruit-Growing) and included cultivars ‘Ance’, ‘Adelyn’, and ‘Sonora’; and the controls ‘Victoria’ and ‘Jubileum’. Planting distances were 4 × 2.5 m, and the rootstock was Prunus cerasifera. Tree training was done using four systems: two systems with branch bending (Heka espalier and spindle); and two systems without bending (standard (round) and flat crown). Evaluation of average fruit weight and yield per trunk cross section area (TCSA) was done from 2015 to 2017. The Heka espalier and spindle systems had first yield in 2015, but systems without bending had first yield only in 2016. Average yield per TCSA was significantly higher for the Heka espalier system (0.49 kg·cm−2) than for the spindle system (0.24 kg·cm−2), standard crown system (0.17 kg·cm−2), and flat crown system (0.30 kg·cm−2). Cultivar ‘Victoria’ had the highest yield among all systems. Average fruit size showed the same results: the biggest fruits were obtained with the Heka espalier system, and the smallest for systems without bending in the standard crown.
Swallowing disorders after treatment for head and neck cancer
Authors: Pezdirec Martina , Strojan Primoz , Boltezar Irena Hocevar 
Published: June 2019

Abstract

Background
Dysphagia is a common consequence of treatment for head and neck cancer (HNC). The purpose of the study was to evaluate the prevalence of dysphagia in a group of patients treated for HNC in Slovenia, and to identify factors contributing to the development of dysphagia.

Patients and methods
One-hundred-nine consecutive patients treated for HNC at two tertiary centers were recruited during their follow-up visits. They fulfilled EORTC QLQ-H&N35 and “Swallowing Disorders after Head and Neck Cancer Treatment questionnaire” questionnaires. Patients with dysphagia were compared to those without it.

Results
Problems with swallowing were identified in 41.3% of the patients. Dysphagia affected their social life (in 75.6%), especially eating in public (in 80%). Dysphagia was found the most often in the patients with oral cavity and/or oropharyngeal cancer (in 57.6%) and in those treated less than 2 years ago (p = 0.014). In univariate analysis, a significant relationship was observed between dysphagia prevalence and some of the consequences of anti-cancer treatment (impaired mouth opening, sticky saliva, loss of smell, impaired taste, oral and throat pain, persistent cough, and hoarseness), radiotherapy (p = 0.003), and symptoms of gastroesophageal reflux (p = 0.027). After multiple regression modelling only persistent cough remained.

Conclusions
In order to improve swallowing abilities and, consequently, quality of life of the patients with HNC a systematic rehabilitation of swallowing should be organized. A special emphasis should be given to gastroesophageal reflux treatment before, during and after therapy for HNC
From Intent to Action – A Study Regarding High School Students’ Motivation in Choosing a University
Authors: Partenie Cristina-Veronica 
Published: June 2019

AbstractIn the context of an increasing competition among Romanian universities for attracting students, developing a strong brand that appeals to the stakeholders’ needs and desires, while incorporating the institutions values and principles, is a desired course of action. A well-structured relatable brand enables future students to identify themselves with an institution and helps them in taking an important decision that could determine the outcome of their future. The present study analyses the factors that high school students consider when choosing to attend a certain university, through a quantitative research performed among 275 high school students from 33 high school institutions in Bucharest, Romania. Result helped classify the most important markers of a reputable university, which universities should consider when building branding programs. At the same time, universities’ communication strategies should appeal to values that they share with their targeted audiences in order to increase their attractiveness.
Comprehensive Aviaton System of Flying Crew Improving Safety in the Aircraft Operation
Authors: Rodak Arkadiusz 
Published: June 2019

Abstract
The article describes 10 known programmes of practical flight training in military aviation – specialization: Multi-Mission Tactical Jet Pilot, which is the highest level of military pilot training in all types of military and civil aviation – comparable only to the level of training and experience of the pilot-instructor of the Military Aviation School. The presented comparison was developed on the basis of literature research from the point of view of, among others, an aircraft operation engineer and a pilot-instructor.
Estimation of Body Fat Percentage in Oral Squamous Cell Carcinoma
Authors: Harshkant Gharote  , Kumar Pushpanshu  , Rachna Kaushik  , Radhika Gharote  
Published: June 2019

BACKGROUND: The purpose of this study was to calculate the body fat percentage and learn its relationship with body mass index in oral squamous cell carcinoma.
MATERIALS AND METHOD: the study comprised of 31 oral squamous cell carcinoma patients and 28 controls. Body mass index was calculated for each individual by recording the height (in meters) and weight (in Kilograms). Prediction equations given by Deurenberg, Gallagher and Jackson-Pollock were used to calculate body fat percentage.
RESULTS: Definite correlation between body fat percent and body mass index was found in oral squamous cell carcinoma and controls. Comparisons of body fat percentages between both groups were found to be statistically significant in Gallagher (p = 0.04) and Jackson-Pollock (p = 0.03) equations.
CONCLUSION: This study suggests that body fat percentage can be a useful indicator for assessing severity of lipolysis due to cachexia in cancer patients. The study can help in evaluating nutritional status during postoperative care of cancer patients.
Planejamento e delineamento de experimentos probabilísticos para o ensino fundamental I
Authors: Oliveira Paulo César , Pereira Julio César 
Published: June 2019

Apresentamos fragmentos de um processo de aprender, aprender a ensinar e ensinar noções de estatística e probabilidade por parte de professoras que atuam nas séries iniciais do ensino fundamental. Esta temática foi inserida nos currículos brasileiros a partir de 1998, e muitos professores em atuação não tiveram em sua vida escolar e profissional uma aprendizagem sistematizada desse assunto. Uma forma de contribuir com estes profissionais é a publicação de artigos científicos, porém Guimarães et al. (2009) constataram que no período de 2001 a 2006 foram publicados apenas sete artigos relacionados a este contexto. Neste sentido, nossa contribuição dar-se-á pela reflexão sobre o processo de experimentação e suas implicações para a aprendizagem.
HUBUNGAN PEMBERIAN ASI EKSKLUSIF DALAM PRESPEKTIF SOSIAL BUDAYA DI KOTA PALEMBANG
Authors: Fajar Nur Alam , Purnama Dadang Hikmah , Destriatania Suci , Ningsih Nurna 
Published: June 2019

Latar Belakang: Pemberian ASI eksklusif secara nasional pada tahun 2010-2012 hanya 33,6-35% yang dipengaruhi oleh interaksi dari berbagai faktor sosial, demografi, biologi, pre dan postnatal, dan psikologi. Meskipun berbagai studi menunjukkan bahwa Pemberian ASI Eksklusif dapat memberikan manfaat kesehatan pada bayi maupun ibunya, namun hasilnya belum sesuai dengan yang harapkan. Kemajuan modernisasi merupakan salah satu penyebab terjadinya perubahan sosial, budaya maupun ekonomi, sehingga dampaknya berpengaruh terhadap menurunnya dukungan pada ibu menyusui. Data Survei Demografi Kesehatan Indonesia Tahun 2007 menunjukkan bahwa pemberian ASI eksklusif mengalami penurun sebesar 30,2% dan peningkatan pemberian susu formula sebesar 11% pada tahun 2013. Penelitian ini bertujuan untuk menjelaskan hubungan perilaku Pemberian ASI Eksklusif berdasarkan perspektif sosial budaya di Kota Palembang. Metode: Penelitian ini menggunakan analisis cross sectional yang bertujuan menjelaskan hubungan perilaku Pemberian ASI Eksklusif berdasarkan perspektif sosial budaya di Kota Palembang. Hasil Penelitian: Sampel penelitian ini berjumlah 220 responden. Hasil analisis tersebut menunjukkan bahwa jumlah anak (p-value=0,003) dukungan ibu atau mertua (p-value=0,001) memiliki hubungan signifikan dengan pemberian ASI Eksklusif pada bayi, sedangkan jenis pekerjaan, pendidikan istri, pendidikan suami, komposisi keluarga, pengetahuan ASI eksklusif dan sikap ibu tidak memiliki hubungan yang signifikan (p>0,005) terhadap pemberian ASI eksklusif pada bayi.Kesimpulan: Hasil analisis hubungan menunjukkan responden yang memiliki jumlah anak ≤ 2 orang, dukungan suami dan dukungan mertua, tidak mencari informasi berhubungan secara signifikan terhadap pemberian ASI eksklusif pada bayi. Sedangkan ibu yang berhubungan,tingkat pengetahuan ibu, jenis pekerjaan ibu dan sikap ibu tidak menunjukkan adanya hubungan terhadap pemberian ASI eksklusif pada bayi.
Порівняльне дослідження трансабдомінальної і ретроперитонеальної лапароскопічної адреналектомії
Authors: Grubnik V. V. , Parfentiev R. S. , Ilyashenko V. V. , Burlak O. S. 
Published: June 2019

Мета. Порівняти результати й ефективність ретроперитонеальної і трансабдомінальної лапароскопічної андреналектомії з визначенням показань до їх застосування.
Матеріали і методи. Дослідження виконане на базі Одеської обласної клінічної лікарні. Обстежено 78 пацієнтів, яким виконали трансабдомінальну (n=44) або ретроперитонеальну (n=34) лапароскопічну адреналектомію.
Результати. Показано, що задній ретроперитонеальний доступ має значні переваги над трансабдомінальним доступом у разі виконання лапароскопічної адреналектомії: істотне скорочення тривалості та зниження травматичності операції, зменшення крововтрати, больового синдрому, отримання хорошого косметичного результату, скорочення строків перебування пацієнтів у стаціонарі.
Висновки. Задній ретроперитонеальний доступ є методом вибору у хворих, яким раніше були виконані оперативні втручання на органах черевної порожнини.
Особливості ендопротезування кульшового суглоба у хворих з тяжкими формами дисплазії кульшової западини та коксартрозом на грунті спондилоепіфізарної дисплазії
Authors: Huzhevskyi I. V. , Herasymenko S. I. , Poluliakh M. V. , Babko A. M. , Solodei I. I. 
Published: June 2019

Мета. Визначити підхід до імплантації чаші ендопротеза кульшового суглоба у хворих з коксартрозом на грунті спондилоепіфізарної дисплазії.
Матеріали і методи. Для визначення особливостей розподілу навантажень у біомеханічній системі “ацетабулярний компонент - кісткова тканина” розроблена скінченно-елементна модель та здійснено математичне моделювання, з урахуванням результатів якого виконано ендопротезування кульшового суглоба у 25 хворих з тяжкими формами дисплазії кульшової западини та коксартрозом на грунті спондилоепіфізарної дисплазії.
Результати. У всіх хворих з коксартрозом на грунті спондилоепіфізарної дисплазії, яким застосували індивідуалізовану техніку імплантації ацетабулярного компонента ендопротеза кульшового суглоба, зокрема використали техніку медіального зміщення чаші ендопротеза, вдалося уникнути явищ асептичної міграції імплантата впродовж 9 років спостереження.
Висновки. Для надійної фіксації ацетабулярного компонента ендопротеза кульшового суглоба критичним є збереження кісткової тканини в області периметра кульшової западини, а не суцільності кісткової тканини її дна, що навіть у хворих з тяжкими формами дисплазії кульшової западини уможливлює досягти стабільної фіксації імплантата шляхом використання його дозованої медіалізації.
PENGARUH MODEL PEMBELAJARAN LEARNING CYCLE TERHADAP HASIL BELAJAR FISIKA SISWA SMA
Authors: Sakdiah Halimatus 
Published: June 2019

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran learning cycle terhadap hasil belajar fisika pada siswa kelas X. Jenis penelitian ini adalah quasi eksperimen. Populasi dalam penelitian adalah seluruh siswa kelas X di SMA N 4 Sungai Penuh yang terdiri dari 5 kelas. Pengambilan sampel dilakukan dengan cara cluster random sampling dengan mengambil 2 kelas dari 5 kelas secara acak yaitu kelas X-3 sebagai kelas eksperimen yang berjumlah 30 orang dan kelas X-2 sebagai kelas kontrol yang berjumlah 30 orang. Instrumen yang digunakan untuk mengetahui hasil belajar siswa adalah tes hasil belajar yang telah dilakukan uji validitas isi dan ramalan dalam bentuk essay dengan jumlah 10 soal. Dari hasil penelitian diperoleh kedua kelas berdistribusi normal dan homogen. Berdasarkan analisis uji-t dua pihak diperoleh thitung = 5,51 dan ttabel = 1,67, sehingga thitung ttabel, oleh karena itu Ha diterima dan Ho ditolak. Hal ini berarti ada perbedaan yang signifikan antara hasil belajar siswa yang menggunakan model pembelajaran learning cycle dengan hasil belajar siswa yang menggunakan pembelajaran konvensional, sehingga dapat disimpulkan bahwa ada pengaruh yang signifikan dalam penggunaan model pembelajaran learning cycle terhadap hasil belajar fisika siswa.. Kata Kunci: Learning Cycle, Hasil Belajar