bluuebunny/crossref_metadata_2025 huggingface dataset:
Perception of Nursing Students toward Academic Learning Environment in a College of Kathmandu
Authors: Koirala Manisa , Koirala Surya , Neupane Sharmila
Published: April 2020

Introduction: A supportive and systematic design of academic learning environment has been important for transfer of learning in clinical context, can lead to positive outcomes for graduates and best prepares for professional life. The objective of this study was to find out the perception of nursing students toward academic learning environment.

Methods: The descriptive, cross sectional study design was used among 172 proficiency certificate level (PCL) nursing students at Maharajgunj Nursing Campus, Kathmandu Nepal. The data were collected by using Dundee Ready Education Environment Measure (DREEM) Inventories with complete enumeration technique which was developed by Roff et al (1997). Data were analyzed using descriptive and inferential statistics.

Results: Overall mean score of academic learning environment was found 142.78 out of 200 for 50 items which was in the ranged for ‘positive’ learning environments. The total mean score for perception of learning was 34.4 out of 48; for perception of teacher 30.7 out of 44; for academic self-perception 25 out of 32; for perception of atmosphere 33.3 out of 48; for social self-perceptions 19.3 out of 28. Mean scores indicated that students’ rated all five dimensions of the educational environment in this institution as an average. The significant differences were found between overall mean score; mean score of teachers, academic self-perception & social self perception of students and different academic year.

Conclusion: The overall mean DREEM scores indicate a more positive academic learning environment. Although the overall learning environments score of this institution observe as an average, none of the items represents ‘excellent’ score or real positive academic learning environment.
Lumbar Diastomatomyelia with Syringomyelia: A Case Report
Authors: Gyawali Deepika , Lama Dharana , Pradhananga Amit B , Sharma Mohan R
Published: April 2020

Diastomatomyelia (DM) is a clinical condition in which the spinal cord is split into two portions by either a bony or a fibrous spur. Depending on the type of dural involvement, it is divided into type 1 and type 2. We recently came across a 9-month old child with a lumbar DM with syringomyelia who was managed successfully at our institute. We discuss the management of this patient in detail along with the description of its etiology, embryology, neurological manifestations, relevant investigations, and treatment implications to both patients and parents. To the best of our knowledge, this is the first case report of DM from Nepal in an infant with minimal symptoms.
CARACTERIZAÇÃO FLORÍSTICA E FITOSSOCIOLÓGICA DO COMPONENTE LENHOSO DE UM FRAGMENTO FLORESTAL DE CAATINGA EM SERRA DO MEL, RIO GRANDE DO NORTE, BRASIL
Authors: Souza Mary Regina de , Ferreira Maria Beatriz , Sousa Geovana Gomes de , Alves Allyson Rocha , Holanda Alan Cauê de
Published: April 2020

A caatinga apresenta uma diversidade de fisionomias e um enorme quadro de degradação, sendo importantes os estudos relacionados a fitossociologia para a caracterização da vegetação. O objetivo deste trabalho foi realizar um estudo de florística e fitossociologia em um fragmento florestal de caatinga no município de Serra do Mel no Rio Grande do Norte. Para realização do estudo foi realizado um levantamento da vegetação adotando-se a Amostragem Inteiramente Aleatória, onde foram marcadas 10 unidades amostrais de 20 x 20 m (400 m²). Foram amostrados todos os indivíduos florestais arbustivos-arbóreos vivos com CAP ≥ 6 cm. Foram avaliados todos os parâmetros fitossociológicos da estrutura horizontal e vertical, a diversidade florística das espécies através do Índice de Shannon-Weaver (H’), dominância de Simpson (C) e equabilidade de Pielou (J’). No levantamento foram encontradas 7 famílias, 12 gêneros e 12 espécies. As famílias com maior número de espécies e de indivíduos foram a Fabaceae e Euphorbiaceae. Croton blanchetianus, Mimosa tenuiflora, Bauhinia forficata, Mimosa ophthalmocentra e Poincianella pyramidalis foram as espécies que assumiram maior importância na área de estudo sob os aspectos fitossociológicos. A área do presente estudo apresenta baixa diversidade de espécies se comparada com outros fragmentos florestais de caatinga já estudados. Palavras-chave: Estrutura; Diversidade; Caatinga. FLORISTIC-PHYTOSOCIOLOGICAL CHARACTERIZATION OF THE WOODY COMPONENT IN A CAATINGA FRAGMENT IN SERRA DO MEL, RIO GRANDE DO NORTE, BRAZIL ABSTRACT:The caatinga presents a diversity of physiognomies and a huge degradation picture, being important the studies related to phytosociology for the characterization of the vegetation. The aim of this work was to carry out a floristic and phytosociological study in a forest fragment of caatinga in Serra do Mel, Rio Grande do Norte. To carry out the study, a survey of the vegetation was performed adopting the Random Sampling, where 10 sample units of 20 x 20 m (400 m²) were marked. All living shrubby-arboreal forest individuals with CAP ≥ 6 cm were sampled. All phytosociological parameters of horizontal and vertical structure, floristic diversity of species was evaluated through Shannon-Weaver Index (H'), Simpson dominance (C) and Pielou equability (J'). The analytic survey found 7 families, 12 genera and 12 species. The families with the largest number of species and individuals were Fabaceae and Euphorbiaceae. Croton blanchetianus, Mimosa tenuiflora, Bauhinia forficata, Mimosa ophthalmocentra and Poincianella pyramidalis were the most important species in the study area under phytosociological aspects. The area of the present study presents low species diversity compared to other forest fragments of caatinga already studied.Keywords: Phytosociology; diversity; Caatinga.
ANÁLISE ESPAÇO-TEMPORAL DA OCORRÊNCIA DE SISTEMAS DE IRRIGAÇÃO POR PIVÔ CENTRAL EM REGIÕES AGRÍCOLAS NO ESTADO DE MATO GROSSO
Authors: Demarqui Edgar Nogueira , Demarqui Lígia Manccini Barros
Published: April 2020

A utilização de técnicas de irrigação visando a produção agrícola tem apresentado crescimento nos últimos anos, sendo que o sistema de irrigação por pivô central (PC) também avançou no quantitativo de unidades implantadas e no total de área abrangida. Isto se deve às características desse tipo de sistema, as quais mostram-se vantajosas para o produtor rural, tais como economia de mão-de-obra e facilidade de operação, entre outras. O formato circular deste tipo de sistema facilita sua identificação através de técnicas de Geoprocessamento aplicadas nas análises de imagens orbitais ou aéreas, permitindo análises quantitativas e de espacialização. Neste contexto, o presente trabalho teve como objetivo mapear, por meio de imagens orbitais, as áreas irrigadas por PC no período de 11 anos (2004 a 2015) referente à três regiões que possuem destaque na produção agrícola no Estado de Mato Grosso: Médio Norte, Parecis e Sudeste. A região Médio Norte apresentou taxa média de crescimento anual de 10,96% na sua área irrigada, a região Sudeste 6,75% e a região dos Parecis 4,28%. A evolução média no número de pivôs nestas áreas foi da ordem de 8,07% ao ano, passando de 259 unidades em 2004, para 586 no ano de 2015, totalizando um crescimento de 226,25% no período.Palavras-chave: áreas irrigadas; produção agrícola; geoprocessamento; sensoriamento remoto. SPACE-TEMPORAL ANALYSIS OF THE OCCURRENCE OF CENTRAL PIVOT IRRIGATION SYSTEMS IN AGRICULTURAL REGIONS IN THE STATE OF MATO GROSSO ABSTRACT:The use of irrigation techniques in agricultural production has increased in the last years, and the center-pivot irrigation system has advanced in number of implanted units. This system, due to its characteristics such as labor savings and ease of operation, has proved to be advantageous for the rural producer. The circular shape of this system allows it to be identified by Geoprocessing techniques applied to the quantitative and spatial analysis of orbital or aerial images. In this context, the present work aimed to map, through orbital images, the center-pivot irrigated areas, for a period of 11 years (2004 to 2015) referring to three regions of Mato Grosso State, witch that stand out in agricultural production: Middle North, Parecis and Southeast. The Middle North region presented an average annual growth rate of 10.96% in its irrigated area, the Southeast region 6.75% and the Parecis region 4.28%. The average evolution in the number of pivots in these areas was of the order of 8.07% per year, going from 259 units in 2004, to 586 in 2015, totaling a growth of 226.25% in the period.Keywords: irrigated areas; agricultural production; geoprocessing; remote sensing.
APLICAÇÃO DO MODELO LINEAR DE MISTURA ESPECTRAL PARA MAPEAMENTO DE PASTAGENS DEGRADADAS E SOLO EXPOSTO NA AMAZÔNIA
Authors: Leal Fabrício Assis , Almeida Maila Pereira de , Leal Glória da Silva Almeida
Published: April 2020

Este trabalho se ocupou no mapeamento e quantificação de pastagens degradadas/solo exposto em propriedades rurais de São Félix do Xingu/PA, em descobrir agrupamentos espaciais para taxas de pastagens degradadas, além de descrever o perfil das propriedades que estavam inseridas nestes agrupamentos. Foram utilizadas cenas do satélite Landsat 8 em 2017, classificadas para obtenção de áreas de pastagens. Depois foi utilizada análise de mistura espectral para obtenção da fração solo. Essa fração solo foi classificada e a primeira classe representou as áreas de pastagens degradadas/solo exposto. Essas áreas foram intersectadas com as propriedades rurais e depois classificadas em relação as taxas de pastagens degradadas/solo exposto. Sequencialmente as propriedades foram agrupadas espacialmente por meio de análise hot spot. A área total de pastagens em 2017 representou 49,8%, já as áreas de pastagens degradadas/solo exposto somaram 21.621 hectares (2,7%) e tiveram presentes em 3.643 (64%) das propriedades rurais (5.691), sendo que 3.004 delas possuíam tamanho de até 500 ha, sendo caracterizadas como pequenas propriedades. Foram três os agrupamentos hot spot encontrados que concentraram 982 propriedades rurais. Dessas 982 propriedades, 878 delas (89,4%) também estavam no grupo de até 500 ha. As pastagens degradadas e solo exposto estavam predominantemente concentradas nas pequenas propriedades rurais.Palavras-chave: análise espacial; imagem fração-solo; pecuária. LINEAR SPECTRAL UNMIXING FOR MAPPING DEGRADED PASTURES AND BARE SOIL IN THE AMAZON ABSTRACT:This work focused on the mapping and quantification of degraded pastures / bare soil in rural properties of São Félix do Xingu/PA, and in discovering spatial clusters for degradation rates, and describing the profile of the properties that were inserted in these clusters. We used scenes from the Landsat 8 satellite in 2017, classified to obtain pasture areas. Then spectral mixture analysis was used in the images to obtain the soil fraction. This fraction was classified and the first class represented the degraded pasture/exposed soil areas. These areas were intersected with the farms and then classified for degraded pasture/exposed soil rates. Sequentially the properties were spatially grouped by hot spot analysis. The total pasture area in 2017 represented 49.8%, while degraded pasture / exposed soil areas totaled 21,621 hectares (2.7%) and were present in 3,643 (64%) of rural properties (5,691), and 3,004 of them had a size of up to 500 ha, being characterized as small properties. There were three hot spot clusters found that concentrated 982 rural properties. Of these properties, 878 of them (89.4%) were also in the group of up to 500 ha. Degraded pastures/exposed soil were predominantly concentrated on small farms.Keywords: Spatial analysis, soil-fraction image, livestock.
Monetary Policy Reaction Function in Positive and Normative Approaches: Evidence from ASEAN-3
Authors: Gan Pei-Tha , Yee Kok-Jing , Rambeli@Ramli Norimah , Jalil Norasibah Abdul
Published: April 2020

A notable feature in many mainstream economic theories and empirical works of literature has been emphasized the conventional development in the domestic economic factors in dealing with monetary policy in both positive and normative approaches. However, external economic factors consist of potentially valuable information, such as the exchange rate and terms of trade, that cannot simply be ignored. To address this limitation, this study examines the monetary policy reaction function in an open economic model in both positive and normative approaches that encompasses the domestic and external factors, namely the inflation, the output gap, the exchange rate and the terms of trade. The empirical validity is obtained by using a sample of ASEAN-3 countries. Both the positive and normative approaches adopt the generalized method of moments and the grid search method, respectively. The findings deliver some policy implications; monetary policy via interest rate remains an important strategy in absorbing shocks from domestic and external factors, and the central bank should include important factors, namely the inflation, the output gap, the exchange rate and the terms of trade, in its monetary policy decision making that eventually help to attain the best economic outcomes.
Systematic Literature Review: The Role of Government Institutions in Corporate Social Responsibility in Nigeria.
Authors: Isah  Hassan Abubakar , Binti Mansor Norma , Binti Abdullah Nurhidayah
Published: April 2020

Although Corporate Social Responsibility (CSR) initiatives have advanced considerably in the past few years. Despite the advancement in the literature on (CSR) very few of them have reflected on the roles of government institutions, especially in the emerging nations. The purpose of the review is to provide a systematic analysis of the role of government institutions on CSR. A methodical kind of literature review was carried out utilising approaches proclaimed by the Institute for Analyses and Propagations but adjusted to the specific requirements of this analysis. The various online database was searched. The search phrases used were governments, CSR, Civil society organisation (CSOs). The review studies are selected from 2009-2019. The total number of articles collected is one hundred and twenty-three (123) out of which sixty (60) of them were found worthy for the analysis. The functions of government institutions were recognised, particularly in the setting of facility deliverance and sustainable development, all together were described to be used to government institutions, CSR and CSOs research, and other activities. The functions described in the piece of work ought to enlighten all researchers in CSR that successful research in CSR cannot be realised without involving institutional theory.
Institutional Context, Political-Value Orientation and Public Attitudes towards Climate Policies: A Qualitative Follow-Up Study of an Experiment
Authors: Aasen Marianne , Vatn Arild
Published: April 2020

In this paper, we are interested in the effects of institutional context on public attitudes towards climate policies, where institutions are defined as the conventions, norms and formally sanctioned rules of any given society. Building on a 2014 survey experiment, we conducted thirty qualitative interviews with car-owners in Oslo, Norway, to investigate the ways in which institutional context and political-value orientation affect public attitudes towards emissions policies. One context (presented as a text treatment) highlighted individual rationality, emphasising the ways in which local pollution impacts the individual citizen; the other highlighted social rationality, emphasising the wider significance of carbon emissions and global responsibility for climate change. We analysed the effects of these contexts on attitudes, finding that institutional context influenced individuals’ perspectives as well as their attitudes towards climate policies. Groups with different value orientations differed in terms of their evaluations but not their interpretations of these contexts.
İyi Sınıf Öğretmeni Özelliklerine Yönelik Öğrenci, Öğretmen ve Veli Görüşleri: Bir Temel Nitel Çalışma
Authors: UYGUR Mutlu , KANADLI Sedat
Published: April 2020

Bu çalışmada alan yazında nitelikli, yeterli sınıf öğretmeni, toplumsal bağlamda iyi sınıf öğretmeni olarak tanımlanan öğretmenlik alanına ilişkin “iyi” olma özelliğinde belirleyici olan görüşlerin incelenmesi amaçlanmıştır. Bu amaç doğrultusunda derinlemesine bilgi edinmek amacıyla araştırmada, Temel Nitel Çalışma Modeli kullanılmıştır. Araştırmanın çalışma grubunu, Mersin ilinde 4. sınıflarda öğrenim gören 31 öğrenci, bu okullarda görev yapan 16 sınıf öğretmeni ve farklı sınıflarda öğrencileri bulunan 28 öğrenci velisi oluşturmaktadır. Araştırmada, iyi sınıf öğretmeni özelliklerini belirlemek amacıyla, elverişli örneklem yöntemiyle seçilmiş öğrenci, sınıf öğretmeni ve velilerin “Sizce iyi bir sınıf öğretmeni hangi özelliklere sahip olmalıdır?” sorusunu cevaplandırmaları sağlanmıştır. Çalışmada, öğrenci, öğretmen ve velilerin tamamının yüksek katılım gösterdiği iyi sınıf öğretmenine ilişkin ortak görüşün “öğrenciyi seven” ifadesi olduğu görülmüştür. Diğer en yüksek katılım gösterilen ifade ise özellikle öğretmen ve velilerin üzerinde durduğu “donanımlı (bilgili)” ifadesi olmuştur. Sonuç olarak, öğrenciyle empati kurabilen, onlarla arkadaş olan, dersi aktif ve eğlenceli hale getiren ve öğrenmeyi artırabilmek için gerekli donanım ve bilgiye sahip öğretmen özelliklerinin, iyi sınıf öğretmeni algısında önemli oranda belirleyici olduğu sonucuna ulaşılmıştır.
Coronavirüs ve Çevrimiçi (Online) Eğitimin Önlenemeyen Yükselişi
Authors: TELLİ Sahure Gonca , ALTUN Deniz
Published: April 2020

Aralık 2019 sonu ve 2020 Ocak Ayı başında ortaya çıkan Covid-19 Virüsü bütün dünyada korkulu bir rüya haline geldi. Ölümleri azaltmak, bulaşın ilerleme hızını düşürmek, tedavi çalışmaları için zaman kazanabilmek amacıyla birçok ülkede alınan tedbirler arasında, eğitim kurumlarında ve üniversitelerde sınıf içi yüz yüze eğitime belli bir süre ara vermek ya da tatil ilan etmek gibi düzenlemelerle olabildiğince sosyal mesafe yaratmaya çalışılmıştır. Buna ilişkin olarak Birleşmiş Milletler verilerine göre, dünyada 770 milyon kişilik öğrenen kitle, okulların ve üniversitelerin kapanmasından etkilenmiştir. Bu çalışmada, ülkelerin ve üniversitelerin eğitim öğretime ara vermemesini sağlamak adına bir zorunluluk haline gelen uzaktan eğitim çalışmalarının bir değerlendirilmesi yapılmıştır. Bu kavramsal çalışmada, durum tespiti yaparak çevrimiçi öğrenmenin yüz yüze öğrenmeye göre kriz dönemi sonrasında da ana akım öğrenme haline dönüşmesi konusu ele alınmaktadır.
Cardiac Computed Tomography is cost-effective compared with Exercise Stress Testing in investigating patients with stable chest pain
Authors: Khattak Mohammad Fawad
Published: April 2020

Commentary on: The cost-effectiveness of cardiac computed tomography for patients with stable chest pain Agus AM, McKavanagh P, Lusk L, et al . Heart doi:10.1136/ heartjnl-2015-308247
A contribution to the hypothesis of nicotinic challenge as therapeutic option for COVID-19 patients
Authors: Manni Luigi , Tieri Paolo , Soligo Marzia
Published: April 2020

The pandemic caused by SARS-CoV-2 represents an open and unresolved challenge for the global health system. The need to identify drugs that demonstrate efficacy in countering both the mechanisms of interaction of SARS-CoV-2 with host cells and to control the devastating inflammatory phenomena that characterize the late stages of viral infection, requires increasingly urgent answers. The biomedical research approach based on the repurposing of already approved drugs seems to be one of the most viable strategies in this struggle. In this work, through a computational pharmacology approach and on the basis of what has been recently reported on the potential of nicotinic receptors in countering both phases of COVID-19, we propose a hypothesis aimed at widening the spectrum of pharmacological tools currently available to doctors. Our proposal specifically concerns the possibility of using tropisetron, a 5-HT3 receptor antagonist at the same time positive allosteric interactor of the nicotinic alpha-7 acetylcholine receptor, in order to inhibit the virus-host interaction and restore the physiological control of the excessive inflammation caused by SARS-CoV-2 infection.
La tabloidización y espectacularización mediática: Discusión conceptual y aproximaciones empíricas
Authors: Valdez López Orlando Esteban , Romero Rodríguez Luis Miguel , Hernando Gómez Ángel
Published: April 2020

El artículo compila y analiza el estado de la cuestión sobre tabloidización y espectacularización mediática, con énfasis en aportes teóricos, empíricos y epistemológicos sobre el impacto del periodismo tabloidizado en la sociedad de consumo. Se realizó una criba de criterios, descriptores y palabras clave utilizando algoritmos booleanos AND/OR, emergieron 52 publicaciones en WoS y 72 en Scopus. Cuyo resultado es la formación de industrias mercantiles como mecanismo del poder corporativo y político, aunado con los erróneos hábitos de consumo informativo de las audiencias, promueven el infoentretenimiento con información banalizada y sensacionalismo como anzuelo para aumentar los rating de audiencias.
Reconocimiento de emociones musicales a través de datos y tecnologías digitales
Authors: Luján Villar Juan David , Luján Roberto Carlos
Published: April 2020

Este estudio explora el campo de investigación denominado reconocimiento de emociones musicales, una perspectiva transdisciplinaria que aborda la investigación de los estados anímicos y las emociones musicales a través de la recuperación de datos y diversos tipos de análisis informáticos y analógicos. Se plantean algunas preguntas con la finalidad de exponer sus principales presupuestos y recientes perspectivas, lo cual guía a nivel metodológico dos experimentos que exponen los planteamientos centrales de este tipo de enfoques y evidencian una serie de posibles aplicaciones prácticas.
Data storytelling: el empleo de datos en la construcción de relatos publicitarios de marca
Authors: Caro-Castaño Lucía , Selva-Ruiz David
Published: April 2020

Este trabajo aborda la contribución de los datos a la construcción de relatos de marca. Se analiza, pues, cómo el storytelling, potenciado por el uso de datos, puede ayudar a la generación de engagement en el consumidor y a la construcción de mensajes publicitarios creativos, recurriendo a la categoría «Creative Data Lions» del festival publicitario Cannes Lions, y, en particular, a todas las campañas seleccionadas en la sección «Data Storytelling». Los resultados permiten observar que se trata de una tendencia enormemente diversa, cumpliendo los datos roles muy diversos en su relación con el storytelling.
Big data: la revolusión de los datos y su impacto en la comunicación corporativa
Authors: Miquel Segarra Susana
Published: April 2020

Desde el punto de vista de la comunicación corporativa, la irrupción de big data no debe verse como una amenaza, sino como una oportunidad para superar los enfoques tradicionales de comunicación (Pereira Villazón, Portilla Manjón y Rodríguez Salcedo, 2019).
El uso del big data en política o la política del big data
Authors: Ardini Claudia
Published: April 2020

El crecimiento exponencial de las redes sociales, los vídeos y fotografías digitales en línea, los dispositivos inteligentes y conectados, con uso masivo de servicios de red móviles y/o el mayor almacenamiento de datos por corporaciones y gobiernos, etc. están logrando un aumento inusitado de cantidad de información digital en el planeta.
Studi Numerik Pengaruh Radius Fillet dan Ketebalan Cap terhadap Tegangan Von Mises dan Faktor Keamanan Silinder Berdinding Tipis untuk Tabung Motor Roket
Authors: Wibawa Lasinta Ari Nendra
Published: April 2020

Motor roket adalah bagian penting dari roket. Motor roket bekerja menggunakan prinsip bejana tekan karena bekerja di lingkungan dengan tekanan dan suhu tinggi. Makalah ini menyelidiki tegangan von Mises yang terjadi dalam silinder berdinding tipis untuk tabung motor roket dan faktor keamanan karena pengaruh radius fillet dan ketebalan cap. Dimensi panjang silinder adalah 400 mm, diameter luar 122 mm, dan ketebalan dinding 5 mm. Radius fillet divariasikan 2, 4, 6, dan 8 mm, sedangkan ketebalan cap divariasikan 5 dan 10 mm. Silinder berdinding tipis dikenai tekanan internal konstan yaitu 6 MPa. Analisis tegangan dilakukan menggunakan metode elemen hingga dengan perangkat lunak Ansys Workbench 2019 R3. Perbandingan nilai tegangan hoop dan longitudinal antara perhitungan analitik dan simulasi digunakan untuk proses verifikasi. Hasil simulasi menunjukkan bahwa ketika radius fillet dan ketebalan cap meningkat, tegangan Von Mises menurun. Material memiliki faktor keamanan lebih tinggi dari 1,25 ketika ketebalan cap 10 mm dengan radius fillet 4, 6, dan 8 mm.
Pengaruh kecepatan putar, gaya gesek dan waktu gesek terhadap struktur mikro dan laju korosi hasil pengelasan proses las gesek material berbeda baja SUH 3 dan SUH 35
Authors: Sai'in Ali , Muzaki Mochamad
Published: April 2020

Las gesek merupakan salah satu teknologi pengelasan yang digunakan untuk menyambung dua material tanpa menggunakan bahan pengisi. Penyambungan benda kerja dilakukan dengan memanfaatkan gesekan dan tekanan. Pengaturan parameter proses dalam las gesek ini seperti kecepatan putar, gaya gesek, waktu gesek, gaya tempa dan waktu tempa sangat menentukan keberhasilan proses pengelasan. Penelitian dilakukan untuk mengamati pengaruh parameter proses, diantaranya kecepatan putar, gaya gesek, dan waktu gesek terhadap struktur mikro dan laju korosi pada material yang dilas dengan menggunakan las gesek. Material yang digunakan merupakan material yang mempunyai komposisi kimia yang berbeda, yaitu baja SUH 3 dan SUH 35. Pengelasan dilakukan dengan mesin las gesek tipe FW10NC. Pengamatan struktur mikro dilakukan menggunakan mikroskop optik dan SEM (Scanning Electron Microscope)-EDX. Pengujian laju korosi dilakukan dengan alat uji laju korosi sel tiga elektroda dengan bantuan software NOVA 1.8. Hasil penelitian menunjukkan bahwa pada proses pengelasan baja SUH 3 dan SUH 35 terjadi perubahan struktur mikro dan perubahan komposisi kimia pada daerah sambungan. Persentase Cr pada kecepatan putar 2500 rpm sebesar 14.99% sedangkan pada kecepatan putar 4500 menjadi sebesar 15.82%. Perubahan parameter proses dapat mengubah laju korosi pada sambungan.
Pengaruh Suhu Penyimpanan Elektroda Low Hydrogen E7016 terhadap Hasil Uji Tekuk Sambungan Las Pelat Baja Karbon SS400
Authors: Afan Miftahrur Bin , Purwantono Purwantono , Mulianti Mulianti , Rahim Bulkia
Published: April 2020

Pengelasan merupakan proses penyambungan logam dengan menggunakan bahan tambah berupa elektroda. Sebelum melakukan pengelasan salah satu faktor penting yaitu perlakuan elektroda. Hal tersebut penting dilakukan terutama pada perlakuan penyimpanan elektroda tipe basic low hydrogen (E7016). Penelitian sebelumnya menunjukkan bahwa pemanasan elektroda dapat menghindari retak sambungan las pada uji face bend. Tujuan penelitian ini yaitu untuk mengungkapkan pengaruh perlakuan suhu penyimpanan elektroda terhadap uji tekuk sambungan las. Metode dalam penelitian ini menggunakan penelitian eksperimen, dimana penelitian dilakukan dengan memberi perlakuan pada suhu penyimpanan elektroda. Elektroda diberi perlakuan suhu penyimpanan dengan variasi 40° C, 80° C, dan 120° C selama 30 menit. Elektroda yang digunakan yaitu jenis low hydrogen (E7016) dan material sampel menggunakan pelat SS400. Sambungan las menggunakan kampuh V tunggal dan pengelasan sampel menggunakan proses shield metal arc welding. Pengujian tekuk spesimen dilakukan sesuai standar American Welding Society D1.1. Hasil penelitian menunjukkan bahwa semakin tinggi suhu penyimpanan akan menghasilkan daya tahan retak yang baik pada uji face bend dibandingkan dengan hasil pengujian root bend.
Performansi Alat Backwash Water Terhadap Kualitas Air di Pondok Pesantren Tradisional Kabupaten Wonosobo
Authors: Indrawati Ragil Tri , Mahmudati Rina
Published: April 2020

Upaya menyediakan air bersih layak pakai dan konsumsi untuk pondok pesantren tradisional semakin gencar untuk dilakukan seiring dengan meningkatnya animo masyarakat memilih pondok pesantren sebagai institusi pendidikan. Salah satu metode yang dapat diterapkan untuk mengatasi masalah ketersediaan air bersih layak pakai dan konsumsi yaitu dengan membuat alat backwash water atau dikenal dengan pencucian air baku. Tujuan penelitian ini untuk mengetahui performansi alat backwash water terhadap kadar kualitas air di pondok pesantren tradisional Kabupaten Wonosobo. Metode penelitian yang digunakan ialah metode eksperimen. Objek penelitian adalah air yang disirkulasikan pada alat backwash water yang berasal dari campuran air sumur dan air sungai. Pengukuran kualitas air yang dihasilkan dari alat backwash water dilakukan dengan uji laboratorium di Balai Laboratorium Kesehatan Dinas Kesehatan Provinsi Jawa Tengah. Hasil penelitian menunjukkan bahwa performansi alat backwash water memiliki dampak positif yaitu terlihat dari peningkatan visibilitas air yang dihasilkan. Hal ini dapat dibuktikan dengan meningkatnya tingkat kejernihan air serta hasil laboratorium menunjukkan bahwa air hasil backwash water berada pada batas yang diperbolehkan baik untuk parameter fisika, kimia maupun parameter yang berhubungan langsung dengan kesehatan yaitu kandungan mikrobiologi (E-Coli). Parameter fisika mendeteksi beberapa parameter antara lain : Bau, Total padatan terlarut (TDS), Kekeruhan, Rasa dan Warna. Sedangkan parameter kimia antara lain kandungan pH, kesadahan, alumunium, besi, nitrat, nitrit, klorine dan sulfat. Sedangkan untuk kandungan bakteri E-Coli terlihat turun sebanyak 7.94 mg/l dari sebelumnya 8.52 mg/l menjadi 0.58 mg/l. Hal ini menunjukkan bahwa kualitas air yang dihasilkan semakin baik.
Karakteristik Limbah Daun Tebu Sebagai Sumber Energi Baru Terbarukan Berbasis Densification Method
Authors: Anam Asroful , Majid Muhammad Azizul
Published: April 2020

Bahan bakar fosil merupakan bahan bakar alam yang tidak dapat diperbaruhi dan persediaannya akan segera habis jika digunakan secara terus menerus dalam skala besar untuk memenuhi kebutuhan energi. Sehingga pemanfaatan bahan bakar alternatif sebagai sumber energi baru mutlak diperlukan, terlebih bahan bakar tersebut persediaanya melimpah dan dapat diperbarui, seperti biomassa limbah industri atau limbah pertanian. Bahan bakar biomassa adalah salah satu sumber energi yang telah banyak dikembangkan dan diteliti sebagai bahan bakar pengganti batubara dengan berbagai perlakuan dan proses yaitu untuk mendapatkan jenis bahan bakar biomassa yang menyamai kualitas batubara. Penelitian ini menyuguhkan penelitian biomassa dari limbah daun tebu dengan metode densifikasi dengan penambahan perekat minyak kayu kapas. Metode densifikasi pada penelitian ini diikuti dengan metode eksperimental dengan memvariasikan ukuran serbuk daun tebu (DT) dan campuran serbuk daun dengan perekat (DTP). Variasi DT adalah 1 mm, 1.5 mm, dan 2 mm dengan DTP 200 gram : 1 gram, 200 gram : 2 gram, dan 200 gram : 3 gram. Tujuan penelitian adalah untuk mengetahui nilai kalor, kadar abu, dan kadar air dengan dampak penelitian yang hendak dicapai adalah limbah daun tebu bisa dijadikan sebagai bahan bakar baru terbarukan dan bisa mengurangi masalah bagi petani. Berdasarkan data hasil penelitian menunjukan bahwa nilai kalor tertinggi pada DT 2 mm, yaitu 3975,01 cal/gr pada DTP 1 dan terendah pada DT 1.5 mm yaitu 2441,67 cal/gr pada DTP 2; kadar abu tertinggi pada DT 1 mm, 13,66% pada DTP 1 dan terendah pada DT 2 mm, yaitu 6,6% pada DTP 3 dan kadar air tertinggi pada DT 1 mm, yaitu 9,8% pada DTP 2 dan terendah pada DT 2 mm, yaitu 7,6% pada DTP 3. Kesimpulan penelitian ini adalah ukuran serbuk dau tebu dan variasi campuran serbuk daun tebu dengan perekat minyak biji kapas mempengaruhi karakteristik limbah daun tebu sebagai sumber energi baru terbarukan.
Rancang Bangun Sistem Alarm untuk Mencegah Kavitasi pada Condensate Extraction Pump di PT. Indonesia Power Unit Jasa Pembangkit (UJP) Jawa Tengah 2 Adipala
Authors: Slamet Agus , Djalmono Wahyu , Prakasa Yogi , Putri Farika
Published: April 2020

PT Indonesia Power Unit Jasa Pembangkit (UJP) Jawa Tengah 2 Adipala merupakan perusahaan yang bergerak dalam bidang pembangkitan energi listrik dengan daya uap. Untuk memenuhi kebutuhan produksi sebesar 1 x 660 MW, unit-unit pada PLTU ini bekerja secara kontinyu dan saling terhubung salah satunya yaitu Condensate Extraction Pump(CEP). Permasalahan yang ada yaitu bila terjadi kavitasi pada CEP ini sering terlambat untuk diketahui. Hal ini disebabkan karena tidak adanya sistem peringatan atau deteksi terjadinya kavitasi pada CEP. Mengingat dampak kavitasi yang sangat merugikan, mulai dari berkurangnya performa pompa hingga rusaknya komponen pompa, maka terjadinya kavitasi pada pompa ini harus dicegah. Tujuan dari penelitian ini adalah merancang sebuah system alarm untuk mencegah kavitasi. Perancangan suatu program alarm saat muncul potensi kavitasi pada pompa dengan konsep dasar menggunakan Net Positive Suction Head required (NPSHr) sebagai ambang batas diharapkan dapat mencegah terjadinya kerusakan pompa akibat kavitasi. Memanfaatkan nilai NPSHr untuk mencegah kavitasi merupakan metode yang berbeda bila dibandingkan dengan penelitian lain yang menggunakan sinyal getaran. Metode penelitian meliputi, identifikasi masalah, studi pustaka, analisis perancangan, pembuatan program dan pengujian. Program dibuat menggunakan aplikasi Visual Basic. Untuk memvalidasi program bekerja sesuai perencanaan dilakukan pengujian dengan memasukkan variasi parameter berupa temperatur air dan ketinggian air sesuai data aktual dengan range masing – masing yaitu 25oC hingga 60oC dan 300 mm-1300 mm. Tekanan dalam kondensor nilainya tetap -80 kPa atau 21.325 kPa dalam tekanan absolut. Head loss dalam instalasi perpipaan dihitung nilainya didapatkan 0.7196 m. Hasil pengujian program alarm mampu mengolah nilai NPSHa dan menampilkannya dalam bentuk grafik yang fluktuatif sesuai dengan tingkat keadaannya serta alarm berbunyi saat nilai Net Positive Suction Head available(NPSHa) dibawah nilai NPSHr atau pompa beroperasi dalam kondisi kavitasi.
Akibat Hukum Pewaris yang Menolak Warisan
Authors: Nugraha Fajar , Radinda Fisuda Alifa Mimiamanda , Fathonah Ricka Auliaty
Published: April 2020

Penelitian ini membahas tentang akibat hukum pewaris yang menolak warisan. Pada umumnya mewaris diterima oleh para ahli waris baik dengan tegas maupun diam-diam, sebagian orang yang seharusnya mempunyai dan mendapatkan hak mewaris, tapi karena suatu hal tertentu ahli waris tersebut tidak mau menerima hak warisnya atau bisa disebut dengan menolak warisan yang diberikan pewaris. Harta yang diwariskan berbentuk harta aktiva dan harta pasiva jadi ahli waris tidak hanya menerima harta dalam bentuk uang dan barang melainkan juga hutang pewaris yang harus ditanggung oleh ahli waris. Tentunya tidak ada orang yang mau dibebani dan bertanggung jawab secara penuh terhadap hutang orang lain. Terdapat dua masalah yang diulas dalam penelitian ini, pertama, apa peran pengadilan dalam menetapkan status hukum ahli waris yang menolak warisan, dan yang kedua, apa akibat hukum yang timbul dari warisan yang ditolak secara penuh oleh ahli warisnya. Hasil penelitian dapat disimpulkan bahwa secara umum yaitu ahli waris yang menolak warisan, berarti ia melepaskan pertanggung jawabannya sebagai ahli waris dan menyatakan tidak menerima pembagian Harta Peninggalan dan menolaknya secara tegas, dengan suatu pernyataan yang dibuat di kepaniteraan Pengadilan Negeri.
Lembaga Penyelesaian Sengketa Pemilu yang Ideal di Indonesia
Authors: Pradika Fauzi Wahyu , Putra Happy Anugraha , Noris Anwar
Published: April 2020

Artikel ini berisi tentang pendapat hukum tentang Badan Pengawas Pemilihan Umum Sebagai Badan Peradilan Khusus yang mana sampai sekarang, sengketa hasil pemungutan suara masih diselesaikan oleh Mahkamah Konstitusi yang mana tugas inti atau pokok dari Mahkamah Konstitusi adalah menguji undang-undang terhadap Undang-Undang Dasar Republik Indonesia tahun 1945. Sehingga perlu adanya Lembaga yang menangani sengketa pemilu bersifat independen dan final. Tujuan Penelitian ini adalah untuk pembaharuan sistem hukum di Indonesia. Penelitian yang digunakan adalah penelitian hukum (legal research) dilakukan karena memang belum ada aturan hukum untuk masalah yang dihadapi. Serta menggunakan Pendekatan Undang-Undang (Statute Approach), Pendekatan Konseptual (Conseptual Approach), Pendekatan Kasus (Case Approach) dan Sumber Bahan Hukum yang digunakan Bahan Hukum Primer dan Sekunder. Hasil penilitian ini menjelaskan bahwa selama ini sengketa pemilu diputus oleh Mahkamah Konstitusi. Sedangkan fungsi Mahkamah Konstitusi yang utama adalah menguji undang-undang terhadap Undang-Undang Dasar Republik Indonesia tahun 1945. Sehingga perlunya Lembaga peradilan khusus untuk menggantikan Mahkamah Konstitusi. Badan Pengawas Pemilihan Umum sebagai lembaga independen yang berfungsi sebagai pengawas pemilu ini bisa dijadikan sebagai lembaga peradilan khusus untuk menangani sengketa pemilu. Seperti halnya negara Brazil dan Thailand yang menggunakan superior electoral court untuk menyelesaikan sengketa pemilu.
Pelaksanaan Pemberian Restitusi Terhadap Korban Tindak Pidana Perdagangan Orang
Authors: Vitasari Salsabila Dewi , Sukananda Satria , Wijaya Sandra
Published: April 2020

Kajian ini membahas tentang implementasi mengenai pengaturan pemberian hak restitusi pada korban tindak pidana perdagangan orang tidak menyampaikan kejelasan. Tujuan dari penelitian ini adalah untuk menganalisa bentuk perlindungan hukum bagi korban tindak pidana perdagangan orang dan pelaksanaan restitusi terhadap korban tindak pidana perdagangan orang. Penelitian ini menggunakan metode penelitian normatif. Hasil penelitian menunjukan mengenai bentuk perlindungan hukum bagi korban tindak pidana perdagangan orang yang berlaku di Indonesia adalah in abstracto dan in concreto. Mengenai pelaksanaan restitusi terhadap korban tindak pidana perdagangan orang masih sangat jauh dari kata terlaksana dengan baik, sebab pengaturan yang ada masih memiliki kelemahan pada aturan normatif baik dari segi peraturan perundang-undangan hingga lembaga penegakan hukumnya.
EVALUATING THE CHANGE OF BED MORPHOLOGY IN RACH GIA COASTAL ZONE
Authors: Nguyen Phung Ky , Dao Khoi Nguyen
Published: April 2020

In this paper, the authors present the studies on the numercial models about the change of currents, sediment transport, and the tendency of accretion and erosion after building Hai Au artificial island. From these results, we give some assessments and comments about the change of bed morphology in Rach Gia coastal zone.
EMERGY ANALYSIS FOR ASSESSING THE ROLE OF RESOURCE AND ENVIRONMENT OF LOWER MEKONG RIVER BASIN
Authors: Dang Hung Viet , Mod Lee Suk
Published: April 2020

Emergy (spelled with an "m") concept is the basic for a science-based evaluation system representing both the environmental values and the economic values with a common measure. Emergy analysis of Lower Mekong River Basin (LMRB) was performed to show the important contribution of water and soil environmental resources and agricultural activities as well to its economic development. The most important renewable resource is the chemical potential of rain of 1429.23E+20 sej/yr. The second most important renewable resource is the chemical potential of river of 362.68E+20 sej/yr. About 49% of the total emergy used was derived from local resources. Agriculture is the main economic activity in LMRB with the contribution of 36% of total emergy used. The renewable carrying capacity was equal to 38% of the basin population. Based on emergy indices, the current status of LMRB is at the boundary between sustainability and unsustainability.
SET-UP OF INDUSTRIAL EFFLUENT QUALITY STANDARDS BASED ON WHOLE EFFLUENT TOXICITY
Authors: Nguyen Dan Phuoc , Huynh An Khanh , Tran Hai Xuan Son
Published: April 2020

Vietnam standards include TCVN 2000 and TCVN 2001 were enforced to overcome disadvandges of old standards enforced in 1995. They also mention to geographical position, discharge loading and application. TCVN 2000 and TCVN 2001 were established and assessed that they are sensible and conformable with practice. However, these standards have some disadvantages. The current standards are applied to all kinds of industrial wastewater. At present, there have no specific standard applied to particular industry so it is so trict to one industry but easy to anothers. This study aims to propose discharge standard which based on discharge loading, concentration and raw wastewater characteristics of some typical industries such as textile, latex, paper, alcohol and leakage. The proposal is based on the assessing method of toxicity of treated wastewater after releasing to effluent receiving. Keywords: Vietnam standard, discharge standard, induatrial wastewater, concentration, emission flow rate, effluent receiving.
THE IMPACT OF UNCERTAINTY ON SUBSIDENCE AND COMPACTION PREDICTION
Authors: Ta Dzung Quoc , M. Al-Harthy, , S Hunt, , J. Sayers,
Published: April 2020

This paper presents the stochastic approach using Monte Carlo simulation as applied to compaction and subsidence estimation in an offshore oil and gas deep-water field in the Gulf of Mexico. The results reveal both the impact of using probability distributions to estimate compaction and subsidence for a disk shaped-homogenous reservoir as well as taking into account Young's modulus, Poisson's ratio and the reduction of pore fluid pressure. The uncertainty reservoir model is also compared with numerical simulation commercial software - Eclipse 300. The stochastic-based simulation results confirm that the deterministic results obtained from the coupled geomechanical - fluid flow model are in the range of acceptable distribution for stochastic simulation. The sensitive analysis shown that Young's modulus has more impact on compaction than Poisson's ratio. The results also presented that values of Young's modulus in this deep-water field in Gulf of Mexico lying beyond 140,000psi are insignificant to compaction and subsidence. Based on output results of compaction and subsidence with the stochastic model, potential reservoirs presenting subsidence and compaction are described as an uncertainty range within distribution of Young's modulus, Poisson's ratio and the reduction of pore fluid pressure in large-scale regional model.
LITHOLOGY ANALYSIS PROGRAM BASED ON WELL LOG DATA
Authors: Nguyen Nha Xuan
Published: April 2020

So far lithological analysis based on well logging data has been has been carried out manually and its results have been plotted by Excel. Analytical results depend on subjective assessment and analytical process requires more time and labor. The paper is to present an automatical program for lithological analysis of well logging data and a program establishing graph of analytical results using AutoCAD and MapInfor software.
DEFORMATION STAGES IN CUU LONG BASIN
Authors: Ta Hoai Thi Thu , Pham Long Huy
Published: April 2020

Seperate of deformation stages, deformation phases and reconstracted their strees fields at Cuu Long basin is very important for explore oil/gas. Based on analysis and synthesis of geological data and geophysical data, it showing that the Cuu Long basin exists four major deformation stages: - Early-Middle Jurassic Post Collisional Orogenic Stage (D1) - Late Jurassic-Cretaceous Active Continental Triệu nămrgin stage (D2) - Eocene-Early Miocene Rifting stage (D3) includes six deformation phases: D3.1, D3.2, D3.3, D3.4, D3.5 and D3.6. Phases of D3.1, D3.3 và D3.5 are extention and thermal subsidence formed basin. Phases of D3.2, D3.4 and D3.6 are compression formed folds, faults and fractures - Late Early Miocene - Quaternary shelf of passive continental margin stage (D4)
Textiles from orange peel waste
Authors: Sachidhanandham Aishwariya
Published: April 2020

The global textile business is now gearing towards greener alternatives to combat pollution and avoid synthetics in production. Ironically, there is an increased awareness among consumers on the quality of the product and choices they make in their shopping. The natural and synthetic fibres have set limitations, which has made manufacturers look out for other alternative fibres. Bamboo, banana, milk, and corn are experimented for its commercial capabilities to perform as a textile material. To add on to the list, orange, the popular, and the most preferred fruit are known for its refreshing flavour. The peels after consumption/ processing of the fruit are discarded in the landfill, which is an organic waste with immense potential.  This paper details the successful brand ‘Orange fibre’, its journey from scratch, and the properties of textiles made from processing orange peel waste. The current areas of research have also been covered in a brief way, to invite more scholars to create solutions for the hitherto pollution orange peel waste.
Setting up the stage for smart sustainable city: international and ukrainian context. The role of smart solutions
Authors: Pozdniakova Anna , Velska Iryna
Published: April 2020

The paper analyzes the key steps taken by different cities worldwide and gathered into a clear step-by-step roadmap that can be useful for emerging smart cities. The Roadmap covers three main stages as we see them during the process of development: preparation, formation and spreading stages. We reveal how this is incorporated in the Ukrainian context.
Our analysis of smart city solutions from all over the world (based on the BeeSmartCity database) showed that the tech component on its own is not enough to overcome urban challenges within different domains (environment, economy, government etc.), as we see each of the solutions has a human component involved in a form of knowledge generation and sharing, different forms of co-creation and partnership etc. Thus, ICTs are a required but not a sufficient element of building successful citizen-friendly and resilient cities.
Simple Additive Weighting for Decision Support Selection of Expedition Services
Authors: Janti Suhar , Adriansyah Mohammad , Taufik Ghofar
Published: April 2020

Freight forwarding services are increasingly developing and each delivery service provider competes to provide the best service, resulting in competition in terms of price and delivery time, in order to attract the attention of users of shipping services. The number of service providers with various types of packages offered by freight forwarding services, making users difficult in determining the right service provider. One way to overcome this problem is by the existence of a method that can provide recommendations as consideration for making appropriate decisions. This study aims to create a decision support system for the selection of goods delivery services by applying the Simple Additive Weighting method that can solve problems by comparing between shipping services. The results of this study are in the form of conclusion calculations that can be taken into consideration for decision making in choosing the most widely chosen freight forwarding services for students and getting the best results in decision making. The results of calculations using the Simple Additive Weighting method, the highest value based on time criteria is JNE YES with a value of 0.73, based on price criteria is a vehicle with a value of 0.68, based on the weight criteria is JNE YES with a value of 0.75, while based on the volume criteria the highest value is a vehicle with a value of 0.70 .
Analysis of Taklinear Performance and Integer Linear Programming Models in Nurses Scheduling Problems
Authors: Nababan Junerdi , Tulus Tulus , Situmorang Zakarias
Published: April 2020

Almost all hospitals schedule nurses' work shifts manually, which is not effective, mistakes in scheduling nurses in hospitals can make them not work optimally so that they are prone to making mistakes and will endanger every patient in the hospital. In the research will be proposed integer linear programming model and branch and bound method, the purpose of this study is to develop an optimization model of nurse scheduling problems at the hospital. The optimization model will minimize the total deviation of nurses' working days from the standard workdays, the optimization model implemented in hospitals is processed using LINGO software.