bluuebunny/crossref_metadata_2025_split huggingface dataset:
Karakterisasi Mekanik Komposit Matriks Polipropilena High Impact Dengan Serat Alam Acak Dengan Metode Hand Lay Up Untuk Komponen Automotive
Authors: Latief Alfan Ekajati , Anggraeni Nuha Desi , Hernady Dedy 
Published: February 2020

ABSTRAK
Serat alam yang berfungsi sebagai penguat memiliki sifat yang lebih ringan, mudah dibentuk, tahan korosi, harga murah dan memiliki kekuatan yang sama dengan material logam. Serat bahan alami yang memiliki kekuatan tarik, tekan dan impak yang baik diantaranya serat rami dan daun nanas. Untuk matriks Polipropilena high impact (PPHI) yang banyak digunakan dalam industri otomotif.. Pada penelitian ini dipelajari pengaruh fraksi volume serat alami terhadap sifat mekanik komposit PPHI berpenguat serat alami. Komposit PPHI dibuat dengan menggunakan metode Hand Lay Up pada temperatur 2500C dengan fraksi volume serat alami sebesar 10%, dimana serat dibuat digunting halus hingga memiliki ukuran mesh 120/170, 170/200 dan dibawah 200 mesh, Kekuatan tarik komposit diukur dengan mengacu pada standar ASTM 3039, kekuatan tekan diukur mengacu pada ASTM D 695. Harga Impak dari komposit diukur dengan mengacu pada ASTM D 6110-04. Pada penelitian ini dapat disimpulkan, fraksi volume 10 % serat alami yang baik ketika dicampur dengan matriks polipropilena high impact adalah serat nanas dengan meshing 170/200 dapat meningkatkan kekuatan tarik PPHI sebesar 40 % dan meningkatkan harga impak PPHI sebesar 50,8 % jika dilihat penelitan sebelumnya yakni menggunakan serat rami dibawah mesh 1200 dengan matriks PPHI.

Kata Kunci: Rami, Daun Nanas, Polipropilena High Impact, Hand Lay Up.

ABSTRACT
Natural fibers that function as reinforcement have lighter properties, are easily formed, are corrosion resistant, are cheap and have the same strength as metal materials. Natural fiber which has good tensile, compressive and impact strength including Ramie and pineapple leaves. For high impact polypropylene matrix (PPHI) which is widely used in the automotive industry. In this study the effect of volume fraction of natural fibers on the mechanical properties of PPHI composites with natural fiber reinforced properties was studied. PPHI composites are made using the Hand Lay Up method at a temperature of 2500C with a volume fraction of natural fibers of 10%, where fibers are made finely shaved to have a mesh size of 120/170, 170/200 and below 200 mesh, the tensile strength of the composite is measured by reference to the standard ASTM 3039, compressive strength measured refers to ASTM D 695. The impact price of the composite is measured with reference to ASTM D 6110-04. In this study it can be concluded, a good volume fraction of 10% natural fiber when mixed with high impact polypropylene matrix is pineapple fiber with meshing 170/200 can increase the tensile strength of PPHI by 40% and increase the impact price of PPHI by 50.8% if seen by research previously that used hemp fiber under mesh 1200 with PPHI matrix.

Keywords: Ramie Pineapple, High Impact Polypropylene, Hand Lay Up.
ANALISIS PENDAPATAN USAHA PERTANIAN DAN PETERNAKAN KERBAU DI LOMBOK, NUSA TENGGARA BARAT
Authors: Rusdiana S 
Published: February 2020

Agriculture has been a dominant livelihood for the farmers in West Lombok District, West Nusa Tenggara Province. Other than that, farmers usually try to increase their income from livestock. To date, buffalo stock business in rural area has not consider the aspect of benefit at farmers’ level, in contrary to food crops which already shifted to agribusiness. The objective of this research is to analyze farmer’s income at various levels of agriculture and buffalo stock business. The discussion is based on the primary data from field survey and interview with 119 farmers at 4 (four) villages: Umbe, Kuripan, South Kuripan, and Kediri Villages. Secondary data was obtained from the local government agencies and research results. The data was analyzed descriptively and further statistically using two-stage Cochran sampling, t-test, double linear regression, and financial analysis of the food crops and buffalo stock using B/C ratio. The result shows that the average net income from agriculture is IDR 9,90 million/year or equal to IDR 825 thousand/month with B/C ratio 2,7; while net income from buffalo stock is IDR 6,28 million/year or equal to IDR 516 thousand/month with B/C ratio 2,3.
DAMPAK KEBIJAKAN TARIF IMPOR TERHADAP PASAR JAGUNG DI INDONESIA
Authors: Putri Aulia Isnaini , Sinaga Bonar M , Hidayat Nia Kurniawati , Hastuti Hastuti 
Published: February 2020

Maize is the second largest contributor to GDP after rice in the food crops subsector in Indonesia. The domestic maize production is unable to meet the high demand. Therefore, there is a gap or imbalance between supply and demand and maize import cannot be avoided. The implementation of ASEAN Free Trade Area has reduced and eliminated tariff barriers. The objectives of the study are to: (1) identify factors that affect the supply and demand for maize, and (2) analyze the impact of changes in maize import tariff on the supply, demand, and welfare of producers and consumers of maize in Indonesia. The study used time series data from 1986-2010. Indonesian Maize Trade model is constructed as a system of simultaneous equations and estimated method using Two Stage Least Squares (2SLS).The elimination of Indonesian maize import tariff from AFTA or non AFTA countries is leading to decreased producer surplus. Therefore, the combination of eliminating Indonesian maize import tariff from AFTA and non AFTA countries, decreasing the retail price of urea fertilizer, and increasing maize prices at the farm level can compensate the decrease of producer surplus so that the welfare can be increased(net surplus).
Results of Surgical Treatment of Infective Endocarditis Complicated with Lung Impairment
Authors: Koltunova H. B. , Babochkina A. R. , Spysarenko S. P. , Avramenko L. M. , Krykunov O. A. 
Published: February 2020

The initial lung impairment in patients with infective endocarditis (IE) has a negative impact on the results of surgical treatment and rate of postoperative respiratory failure (RF). Mechanisms of development of RF are quite complicated, but the leading role is played by the initial septic lesion of pulmonary tissue in IE and surgical treatment with the use of cardio-pulmonary bypass.
The aim of the study was to analyze results of surgical treatment of patients with IE, operated with the use of cardio-pulmonary bypass, implementing the method of intraoperative lung protection.
Materials and methods. The basis of the study was clinical data of 663 patients with IE who were examined and treated at the SE “Amosov National Institute of Cardiovascular Surgery of NAMS of Ukraine” from 01.01.2016 to 01.01.2018. Diagnosis of IE was established according to the Duke University criteria Anesthetic support was carried out in accordance with standard techniques. For intraoperative lung protection, together with perfusion of the pulmonary artery with arterial blood, the mechanical ventilation was maintained for the period of bypass circulation. For determination of pathomorphological changes of lungs in patients with IE, histological analysis of intraoperative lung biopsy was performed.
Results. In the surgical treatment of patients with IE with the use of standard method of anesthesia support, the rate of RF in the early postoperative period was 52 (7.8%) cases. The use of the modified method of intraoperative management led to the decrease of the signs of adults respiratory distress syndrome during the postperfusion period: decrease in the edema liquid in the alveolar lumen (p = 0.027), decrease in protein precipitate in the alveolar lumen (p = 0.031), decrease in the incidence of signs of alveoli collapse (p = 0.002). The use of the lung protection method offset the negative impact of intraoperative volume of blood transfusion on the lung function after surgery and the duration of mechanical ventilation (r = 0.121, p = 0.522). The introduction of lung protective in patients with IE, operated with the use of cardio-pulmonary bypass, contributed to decrease in the rate of RF in the early postoperative period from 7.9% to 2.8% of cases in the study groups.
Conclusions. Implementation of the new protocol allowed to conduct long-term surgical interventions with the use of cardio-pulmonary bypass without increasing duration of mechanical ventilation and reducing the oxygenation index in the postoperative period, and contributed to the decrease in the frequency of postoperative RF.
ФАКТОРЫ, ВЛИЯЮЩИЕ НА ПЛАНИРОВКУ КВАРТИР В ЖИЛЫХ ЗДАНИЯХ И МАТЕМАТИЧЕСКАЯ ОЦЕНКА ЖИЛИЩНОГО ПЛАНИРОВАНИЯ
Authors: Халимов Хикмет Сабир оглы 
Published: February 2020

Со временем в зависимости от социально-экономического развития спрос на квартиры меняется и развивается. Факторы, влияющие на спрос и их классификация, составляют первую часть статьи. Результат классификации факторов показан на схеме 1.
Разработка и оптимизация предлагаемых стандартных планов квартир всегда актуальна. Этот процесс должен осуществляться с учётом вышеперечисленных факторов. Приоритетом является увеличение жилой площади за счет максимизации полезной площади квартиры.
В приведённых выше примерах преобразование площадей показано в таблице 1. Вторая часть статьи - это разница показателей воспроизводства по сравнению с предыдущим планом, а также метод средней математической оценки, успешности «эконом» плана в зависимости от различных факторов.
ОПТИМИЗАЦИЯ СОДЕРЖАНИЯ НИОБИЯ ДЛЯ ПОВЫШЕНИЯ ИЗНОСОСТОЙКОСТИ ГАЗОТЕМИЧЕСКИХ ПОКРЫТИЙ
Authors: Москвитина Л.В. , Москвитин С.Г. , Васильев С.В. 
Published: February 2020

В связи с разработкой инновационного федерального проекта по разработке Томторского ниобийредкоземельного месторождения Якутии актуальны технологии потребления ниобия и РЗМ на внутреннем рынке России. Проведено исследование оптимизации содержания ниобия в качестве модификатора с целью повышения износостойкости фрикционного покрытия и сбалансированности трения в паре: модифицированное покрытие – металлическое контртело. Рассмотрены содержания ниобия в шихте порошковых проволок от 0,1 до 5% масс. Рентгеноспектральным анализом и сканирующей растровой электронной микроскопией изучены составы и структуры износостойких покрытий.
Трибологические исследования показали, что содержание в порошковой проволоке ниобия от 1% до 5% обеспечивает высокую износостойкость и в то же время потери массы образцов и контртел сбалансированы, что обусловлено измельчением микроструктуры и повышением однородности микромеханических свойств.
Prevalence of Depression among Medical Students of a Tertiary Care Teaching Hospital
Authors: Shrestha Nikhil , Shrestha Neharika , Khanal Smriti , Dahal Sujata , Lama Roshan , Simkhada Prashant , Pradhan Sudarshan Narsingh 
Published: February 2020

Introduction: Depression is one of the major problems encountered by medical students. This maycause a negative effect on cognitive functioning and learning of students resulting in poor healthcare and service delivery in future. The presence of this major problem is necessary to be evaluated.Enough recent data regarding its prevalence is not available in our country. Thus, the main aim ofthis study is to find the prevalence of depression among medical students of a tertiary care teachinghospital.
Methods: This is a descriptive cross-sectional study which was conducted among undergraduatemedical students of a tertiary teaching hospital over a four-month period (July to October 2019).Ethical clearance was received from the Institutional Review Committee of the same tertiary teachinghospital. Random sampling technique was used to collect data to meet the calculated sample size.Data analysis was done in the Statistical Package for Social Sciences. Point estimate at 95% ConfidenceInterval was calculated along with frequency and proportion for binary data.
Results: The prevalence of depression among selected medical students of Kathmandu MedicalCollege and Teaching Hospital is 59 (27.2%) at 95% Confidence Interval (21.28-33.12%). Thirty (14%)of the participants were mildly depressed, 21 (10%) moderately depressed while 8 (4%) were severelydepressed according to Beck’s Depression Index II.
Conclusions: Prevalence of depression among medical students is relatively significant as foundin similar studies done in other centres. Thus appropriate programs and strategies should beimplemented to avoid depression from causing a negative effect on cognitive functioning andlearning of students. Favourable environment where students are able to talk about their mentalhealth issues is a must.
Prevalence of Osteoporosis among Adults in a Tertiary Care Hospital: A Descriptive Cross-sectional Study
Authors: Shrestha Shriraj , Dahal Saurav , Bhandari Parash , Bajracharya Suraj , Marasini Anurag 
Published: February 2020

Introduction: Osteoporosis is a common metabolic bone disease characterized by increased bone fragility, yet underdiagnosed and undertreated. With the increase in longevity of the populace, it is becoming an urgent and serious global epidemic. This being a preventable disease, has no clinical manifestations until there is a fracture. Early diagnosis and treatment are of dire necessity. Hence the aim of our study is to find the prevalence of osteoporosis among adults attending a tertiary care hospital-based on calcaneal quantitative ultrasound.
Methods: This descriptive cross-sectional study was done in a tertiary care hospital, from 15th July 2019 to 15th October 2019 after receiving ethical approval from the Institutional Review Committee (Registration number: 2075 / 76 / 119). Convenient sampling was done. Data collection and entry was done in Microsoft excel, point estimate at 95% Confidence Interval was calculated along with frequency and proportion for binary data.
Results: Out of 464 participants the overall prevalence of osteoporosis was 38 (8.2%) at a 95% confidence interval (5.7-10.7). Among the participants, 141 (30.4%) were male and 323 (69.6%) were female. The mean age of the participant was 41.02±14.96 years. Osteoporosis was more common in the older age group 11.66 (30.7%) in 60 years above Women were found to be more osteoporotic than men, 3.42 (9.0%) and 2.43 (6.4%) respectively. Bone mineral density and osteoporosis had a bimodal distribution, underweight 5.01 (13.2%) and obese group 5.32 (14.0%) were the two peaks.
Conclusions: The prevalence of osteoporosis in our study is high and is consistent with other South Asian studies. Early detection of osteoporosis using calcaneal quantitative ultrasound can be a good screening tool.
Awareness regarding Menstrual Hygiene among Girl Students of a School in Chitwan
Authors: Raut Krishna Bahadur , Agrawal Khatry Roshani , Shrestha Tumla 
Published: February 2020

Introduction: Adolescent girls often lack knowledge regarding reproductive health includingmenstruation which can be due to socio-cultural barriers in which they grow up. It is importantto educate adolescents about issues related to menstruation so that they can safeguard themselvesand hold implications for professionals involved in improvement of reproductive health. The mainobjective of the study was to find out awareness regarding menstrual hygiene among girl studentsof a school in Chitwan.
Methods: A descriptive cross-sectional study was conducted in a school in Chitwan among girlstudents of school from grade 8, 9 and 10 from 2019 July to August 2019 after ethical approval. All thegirl students from grade 8, 9 and 10 were included into the study. Data were entered and calculationswere using Statistical Package for the Social Sciences version 20.
Results: Among 184 adolescent girls, 156 (84.8%) were aware about the menstrual hygiene andmost of them 176 (95.7%) knew about the criteria of ideal absorbent to be used during menstruation.Likewise, 120 (65.2%) were aware regarding washing the genital organs, 137 (74.5%) were changingsanitary pad and 136 (73.9%) were disposing used sanitary pad. The mean age of girl students was14.48±1.259 years respectively.
Conclusions: Awareness regarding menstrual hygiene was present among the girl students, butpractice for proper menustral hygiene was low compared to studies done in similar settings.
Prevalence of Verbal Abuse Among Doctors in Tertiary Care Hospital
Authors: Silwal Kalpana , Joshi Sarala 
Published: February 2020

Introduction: Verbal abuse is the act of forcefully criticizing, insulting or denouncing another person.Verbal abuse can be devastating to doctors and may cause long lasting emotional and psychologicaldamage. This study aims to find the prevalence of verbal abuse among doctors in tertiary carehospital.
Methods: This descriptive cross-sectional study was conducted among doctors in a tertiary carehospitals, Chitwan from January to July, 2019 after taking ethical approval. Convenience samplingwas done. Self administered questionnaire was distributed and data was collected. Point estimateat 95% CI was done for binary data along with frequency and proportion. Data were entered andcalculations were done in Microsoft excel.
Results: Verbal abuse was found among 80 (33.3%) respondents at 95% Confidence Interval (27.51-39.09%) and most 51 (63.8%) of perpetrators were relatives of the patients. Most 38 (47.5%) of thedoctors were often worried in workplace. Incident of the verbal abuse was more 35 (43.6%) inmorning and least 14 (17.4%) in night. Most 22 (27.5%) of the doctors did not take any action forincident although most 42 (52.5 %) of the doctors were encouraged by colleagues to take action.
Conclusions: Prevalence of verbral abuse among the doctors were found out to be similar as theprevious studies conducted in similar settings. This study has shown that doctors were frequentlyverbal abused by patient’s relatives and were abused mostly in morning shift and were often worriedin workplace.
Prevalence of Covert Hepatic Encephalopathy in A Tertiary Care Centre
Authors: Pathak Rahul , Ghimire Pukar , Thapaliya Sabin , Sharma Sashi , Khadga Prem 
Published: February 2020

Introduction: Among patients with Hepatic Encephalopathy, prevalence of Minimal HE variesbetween 30-50%. Identifying patients with MHE has been shown to improve with medications anddelay development of Overt HE, however only limited clinicians screen for MHE in patients due totime consuming neuropsychological and neurophysiological tests. The Number Connection Test isan easy way to evaluate patients to diagnose MHE. The aim of this study is to find out the prevalenceof covert hepatic encephalopathy.
Methods: The descriptive cross-sectional study was done to find out the prevalence of covert hepaticencephalopathy among patients with chronic liver disease. To diagnose Covert HE which includedMHE as well, NCT was used in Devanagari script.
Results: The prevalence of covert hepatic encephalopathy is found to be 56 (58.3%) at 90% confidenceinterval (58.23-58.37%). A total of 96 patients (71.9% male) were diagnosed as HE, with mean age of49.6+11.8 years. The cause of CLD in 85 (88.5%) of these patients was alcohol, of which 76 (79.2%)consumed locally brewed alcohol. Of these 96 patients with HE, only 40 (41.7%) had overt HE.Among all these, maximum patients had MHE (37.5%).
Conclusions: Our study showed that although the prevalence of minimal HE is quite high amongcirrhotics, they are usually missed in clinical practice due to absence of symptoms. Active screeningwith easy-to-administer tests, like Number Connection tests, can help identify patients with minimalHE and hence treat them early.
PENGARUH EARNING PER SHARE DAN BOOK VALUE PER SHARE TERHADAP HARGA SAHAM PT LIPPO KARAWACI, TBK
Authors: Wartono Tri, 
Published: February 2020

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh Earning Per Share (EPS) dan Book Value Per Share (BVPS) terhadap fluktuasi harga saham pada PT Lippo Karawaci, Tbk dalam kurun waktu 12 (duabelas) tahun terakhir dari tahun 2005 sampai 2016.Metode penelitian kuantitatif dengan menggunakan data laporan keuangan (time-series) selama 12 (duabelas) tahun 2005 sampai dengan 2016. Penelitian ini menggunakan data sekunder yang bersumber dari laporan tahunan yang telah terpublikasi. Analisis statistik, meliputi uji asumsi klasik, persamaan regresi berganda, koefisien korelasi dan determinasi serta pengujian hipotesis/uji-signifikansi.Hasil pengujian bahwa variabel Earning Per Share (EPS) secara parsial berpengaruh signifikan terhadap variabel harga saham (0,021 < 0,050), dan variabel Book Value Per Share (BVPS) secara parsial berpengaruh tidak signifikan terhadap variabel harga saham (0,333 > 0,05). Sementara bahwa EPS dan BVPS secara bersama-sama (simultan) berpengaruh signifikan, karena nilai sig. lebih kecil dari 0,05 (0,006<0,050).Kata Kunci : EPS, BVPS dan harga saham
ANALISIS PENGARUH GAYA KEPEMIMPINAN, BUDAYA ORGANISASI DAN KOMPENSASI TERHADAP SEMANGAT KERJA PEGAWAI PADA PT INDONESIA COMNETS PLUS DIVISI CONTACT CENTER PLN 123 SITE JAKARTA
Authors: Nariah Nariah, 
Published: February 2020

Tujuan penelitian ini untuk mengetahui pengaruh secara parsial maupun simultan Gaya Kepemimpinan, Budaya Organisasi Dan Kompensasi Terhadap Semangat Kerja Pegawai Pada PT Indonesia Comnets Plus Divisi Contact Center Pln 123 Site Jakarta.Jenis penelitian ini adalah asosiatif dengan pendekatan deskriptif dan kuantitatif. Adapun populasi dalam penelitian ini sebanyak 296 responden dan menggunakan teknik sampling random tidak berstrata dengan teknik slovin untuk menentukan jumlah sampel sehingga diperoleh sampel sebanyak 170 responden. Adapun alat analisis menggunakan analisis regresi linear berganda dengan bantuan Software SPSS 24.Hasil penelitian ini menunjukkan bahwa, secara parsial terdapat Pengaruh antara Gaya Kepemimpinan (X1) Terhadap Semangat Kerja (Y) dengan nilai thitung 2,035 > t table 1,974. Secara Parsial Terdapat Pengaruh antara Budaya Organisasi (X2) Terhadap Semangat Kerja (Y) dengan nilai thitung 3,878 > t table 1,974. Secara Parsial antara Kompensasi (X3) Terhadap Semangat Kerja (Y) dengan nilai thitung 2,991 > t table 1,974. Terdapat Pengaruh Secara Simultan Antara Gaya Kepemimpinan (X1), Budaya Organisasi (X2) dan Kompensasi (X3) Terhadap Semangat Kerja (Y) dengan nilai Fhitung 63,567 > Ftabel 2,66. Kontribusi ketiga variabel bebas R2 sebesar 53,5% terhadap Semangat Kerja (Y) dan sisanya sebesar 46,5% dipengaruhi oleh faktor lainnyaKata Kunci : Gaya Kepemimpinan, Budaya Organisasi, Kompensasi Dan Semangat Kerja
PENGARUH MOTIVASI BELAJAR DAN FASILITAS BELAJAR TERHADAP PRESTASI BELAJAR IPS SISWA SMP NURUL IMAN PARUNG BOGOR TAHUN AJARAN 2017/2018
Authors: SHOLEH BADRUS , SA’DIAH HAMDAH 
Published: February 2020

ABSTRAK Tujuan penelitian ini adalah untuk mengetahui apakah ada pengaruh motivasi belajar dan fasilitas belajar IPS baik secara parsial maupun simultan terhadap prestasi belajar IPS. Populasi penelitian ini adalah seluruh siswa kelas VII dan VIII SMPN Nurul Iman Parung Bogor yang berjumlah 36. Variabel yang diteliti adalah motivasi belajar dan fasilitas belajar sebagai variabel bebas dan prestasi belajar sebagai variabel terikat. Metode pengumpulan data menggunakan kuisioner dan dokumentasi. Adapun analisis data menggunakan analisis deskriptif dan regresi berganda. Hasil penelitian ini menunjukkan 1) terdapat pengaruh motivasi belajar terhadap prestasi belajar, 2) tidak terdapat pengaruh fasilitas belajar terhadap prestasi belajar dan 3) terdapat pengaruh secara simultan motivasi belajar dan fasilitas belajar terhadap prestasi belajar IPS. Kata Kunci: Motivasi Belajar, Fasilitas Belajar, Prestasi Belajar