bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of the performance of different mixing ventilation configurations in particle removal from indoor spaces
Authors: C. Habchi  , K. Ghali  , N. Ghaddar2  
Published: July 2019

Re-suspended particles from indoor sufaces present a real threat to occupants. The ventilation system plays a primordial role in enhancing the indoor air quality. A CFD model was developed to compare particle removal effectiveness of variable mixed air distribution configurations. A parametric study was performed to assess the effect of two main factors affecting the airflow pattern: the relative inlet/outlet location and suction velocity. It was found that the mixing ventilation configuration with floor outlets located at middle of the walls presented the best performance due to the creation of a suction effect covering the majority of the floor area leading to high removal effectiveness. Furthermore, increasing the suction velocity strengthened the suction effect resulting in better particle removal by the escape of a larger number of particles generated at floor level.
Reduction of Electrical Losses’ Analysis on Distribution Systems with Distributed Generation and Energy Storage Systems
Authors: N.M. Neto  , M. R. C. Albertini  , W. B. De Melo  , M. V. B. Mendonça  , A. J. P. R. Júnior  , F. A. M.  Moura  , J. R. Camacho  
Published: July 2019

The increasing use of distributed generation inthe Electric Power Systems has brought these several problems, since the controllers of these systems must take into account one more variable for any decisions. Within this context, there was a special emphasis on the use of electric energy storage systems to reduce losses, with the allocation of them as a load at the over-generation points and to reduce system losses at peak demand points. This article presents an analysis of the distributed generation to compare the electrical losses using electrical energy storage. The technique used to estimate the electric energy generation of a photovoltaic system in one day, according to temperature and irradiation data, was the application of artificial neural networks. Thus, the storage element appropriate to the demand and generation levels was first defined and the OpenDSS tool was used to perform the study of the load flow and to measure the effect of the use of these storage systems in the IEEE 37 bus network. Using energy storage in this application has proved to be advantageous, reducing the losses of active power at the peaks and reducing over-generation during the day, measured as crucial for the future of the distribution.
Skrining Ketajaman Penglihatan pada Siswa SDN
Authors: Husna Hanna Nurul , Widia Chita , Widia Chita 
Published: July 2019

Gangguan pada mata akan menyebabkan gangguan penglihatan yang berdampak pada ketidaknyamanan dan gangguan lainnya dalam menjalani aktivitas sehari-hari. WHO menyatakan sebanyak 19 juta anak-anak yang berusia di bawah 15 tahun diperkirakan mengalami gangguan penglihatan dan 12 juta di antaranya disebabkan oleh kelainan refraksi mata. Kegiatan pengabdian masyarakat ini merupakan salah satu bentuk dukungan terhadap Peta Jalan Penanggulangan Gangguan Penglihatan 2017-2030 dan salah satu upaya dalam mencegah gangguan penglihatan pada anak. Kegiatan yang dilakukan adalah skrining pemeriksaan visus ataupun koreksi bagi siswa SD kelas 3 dan 4 yang disertai dengan pemberian informasi mengenai pentingnya menjaga kesehatan mata dan melakukan. Tujuan dari skrining visus ini adalah untuk mengetahui gambaran kelainan refraksi mata pada siswa SD. Lokasi skrining kelainan refraksi dilaksanakan di SDN 1 Cikalang Kecamatan Tawang Kota Tasikmalaya. Subjek adalah siswa kelas 3 dan 4 dalam rentang umur 8-9 tahun yang diduga tidak mengalami kelainan refraksi. Skrining visus dilakukan dengan menggunakan Optotipe Snellen dan dikoreksi dengan menggunakan lensa coba/trial lens. Pelaksanaan kegiatan pengabdian masyarakat ini berlangsung dengan lancar dan efisien. Pada siswa kelas 3 (8-9 tahun) terdapat 10 siswa (24%) yang mengalami kelainan refraksi, kelas 4A (9-10 tahun) terdapat 8 siswa (20%) yang mengalami kelainan refraksi, dan di kelas 4B terdapat 6 siswa (14%) yang mengalami kelainan refraksi. Kegiatan ini diharapkan dapat menumbuhkan motivasi dan kesadaran siswa dan orang tua untuk melakukan pemeriksaan rutin pada mata sejak dini.Kata Kunci : Kelainan refraksi, kesehatan mata, skrining.
Pendampingan Posyandu Lanjut Usia
Authors: R Arnis Puspitha , Nurdin Nurhaya , Saleh Umniyah 
Published: July 2019

Kota Makassar memiliki jumlah lanjut usia (lansia) terbanyak kedua di Sulawesi Selatan yaitu sebanyak 79.581 jiwa. Salah satu kelurahan di kota Makassar yaitu kelurahan Paccerakkang Kecamatan Biringkanaya terdapat 487 jiwa lansia yang tersebar di 8 RW. Sembilanpuluh persen lansia mengalami hipertensi, rheumatoid arthritis, infeksi saluran pernapasan atas, diabetes mellitus, gastritis, dan stroke, penglihatan kabur yang menyebabkan risiko jatuh, tetapi belum mendapat pelayanan kesehatan yang memadai. Selain itu, posyandu lansia di 3 RW masih bergabung dengan Posyandu balita, jumlah kunjungan lansia pun masih sangat rendah, sementara 5 RW lainnya belum memiliki Posyandu lansia. Selain itu jumlah petugas kesehatan sangat terbatas yakni hanya 1 orang. Dengan demikian, pelaksanaannya belum berfungsi optimal, bahkan tidak mampu menyentuh kebutuhan para lansia. Tujuan pendampingan Posyandu ini untuk meningkatkan kesejahteraan lansia, baik fisik maupun psikologis, melalui kegiatan Posyandu lansia yang mandiri. Metode kegiatan ini dilaksanakan dalam tiga tahap yaitu pelatihan kader kesehatan lansia, pembentukan kelompok kerja (pokja) lansia, dan pendampingan pelaksanaan Posyandu lansia sistem 5 meja. Hasil dari kegiatan ini adalah adanya peningkatan pengetahuan yang cukup tentang kesehatannya, dapat mempertahankan kebugaran dan kesehatan fisik serta kesehatan psikologisnya. Posyandu lansia ini berdampak pada peningkatan derajat kesehatan baik fisik maupun psikologis dan usia harapan hidup lansia sehingga dapat mencapai masa tua yang bahagia dan berdaya guna dalam kehidupan keluarga dan masyarakat. Kata kunci: Hidup Sehat, lanjut usia, posyandu.
Penyuluhan tentang Bahaya Merokok pada Siswa SMAN 2
Authors: Amira Iceu , H Hendrawati , Senjaya Sukma 
Published: July 2019

Perilaku merokok menjadi permasalahan, baik secara lingkungan maupun individu. Artinya perilaku merokok selain disebabkan faktor dari dalam diri juga disebabkan oleh lingkungan, salah satunya adalah teman sebaya yang pada tahap awal mempengaruhi untuk melakukan merokok (46%), seorang anggota keluarga bukan orang tua (23%), dan orang tua (14%). Tujuan kegiatan ini agar siswa memahami upaya pencegahan bahaya merokok, mensosialisasikan kepada sekolah dan masyarakat. Metode dari kegiatan ini untuk memberikan penyuluhan kesehatan tentang bahaya merokok, sasarannya semua siswa SMAN 2 Kabupaten Garut. Kegiatan ini dimulai dengan membuat perencanaan, pelaksanaan, evaluasi, hingga penyusunan laporan. Hasil kegiatan berdasarkan pengukuran pengetahuan melalui pre dan post test. Hasil pre test 41 % siswa tidak mengetahui mengenai bahaya merokok, 43 % tahu sebagian, dan 12 % memahaminya. Dari 15 pertanyaan jawaban yang salah, paling banyak pertanyaan berkaitan dengan bahaya merokok dan penyakit /dampak dari perokok aktif serta perokok pasif. Setelah materi di sampaikan kemudian melaksanakan post test bertujuan untuk mengetahui sejauh mana perubahan pengetahuannya siswa-siswi setelah mendapatkan materi, diikuti 159 siswa/ peserta ,dengan hasil sebagai berikut: nilai 95 sebanyak 3 orang, nilai 90 sebanyak 13 orang, dan nilai 85 sebanyak 22 orang, nilai 82 sebanyak 25 orang, nilai 80 sebanyak 22 orang , nilai 77 sebanyak 25 orang, nilai 75 sebanyak 18 orang, nilai 70 sebanyak 14 orang dan nilai 60 sebanyak 17 orang. Dilihat dari hasil post test ,tujuan tercapai , hampir 90 % siswa / siswi SMA Negeri 2 kabupaten Garut mengetahui mengenai bahaya merokok , hasil dari pre test ke post test ada kenaikan sebesar 47 %. Kata kunci: Bahaya Merokok, penyuluhan, siswa.
El trabajo doméstico: de la Rerum Novarum a la Amoris Laetitia
Authors: Hurtado Domínguez Rafael 
Published: July 2019

Resumen:En el presente estudio se explorará el tema del trabajo doméstico a la luz del Magisterio de la Iglesia Católica, el cual ha pasado de proteger explícitamente el modelo de familia tradicional constituido por el varón-proveedor y la mujer-ama de casa, a exponer de modo preferente los retos del nuevo modelo de familias con doble-sueldo. El análisis abordará las contribuciones originales de la Rerum Novarum, la Quadragesimo Anno, la Laborem Exercens y la Familiaris Consortio en relación al tema citado, para contrastarlo con los desarrollos más recientes que trajo consigo la Caritas in Veritate y principalmente la Amoris Laetitia. Palabras Clave: Salario Familiar Suficiente, Trabajo Doméstico, Amoris Laetitia, Hogar Familiar.
Effect of randomly distributed polypropylene fiber reinforcement on the shear behavior of sandy soil
Authors: Benziane Mehdi Missoum , Della Noureddine , Denine Sidali , Sert Sedat , Nouri Said 
Published: July 2019

Abstract
The inclusions of geosynthetic materials (fibers, geomembranes and geotextiles) is a new improvement technique that ensures uniformity in the soil during construction. The use of tension resisting discreet inclusions like polypropylene fibers has attracted a significant amount of attention these past years in the improvement of soil performance in a cost-efficient manner. A series of direct shear box tests were conducted on unreinforced and reinforced Chlef sand with different contents of fibers (0, 0.25, 0.5 and0.75%) in order to study the mechanical behavior of sand reinforced with polypropylene fibers. Samples were prepared at three different relative densities 30%, 50% and 80% representing loose, medium dense and dense states,respectively, and performed at normal stresses of 50, 100 and 200 kPa. The experimental results show that the mechanical characteristics are improved with the addition of polypropylene fibers. The inclusion of randomly distributed fibers has a significant effect on the shear strength and dilation of sandy soil. The increase in strength is a function of fiber content, where it has been shown that the mechanical characteristics improve with the increase in fiber content up to 0.75%, this improvement is more significant at a higher normal stress and relative density.
The geology and tectonic evolution of the northwest part of the Barberton Greenstone Belt, South Africa: A review
Authors: Anhaeusser C.R. 
Published: July 2019

AbstractFormations on the northwestern flank of the Barberton Greenstone Belt have hosted over 85% of all the gold recovered from the ca. 3550 to 3000 Ma Barberton Supergroup since early discoveries in 1872. This sector of the greenstone belt also happens to coincide with a complex tectonic architecture resulting from successive stages of folding and faulting superimposed onto a complex lithostratigraphy. Of particular importance has been the influence of two diapiric granitoid intrusions that caused added structural complexity following their emplacement ca. 3227 to 3250 Ma. Of these the larger Kaap Valley Pluton invaded the area north of present day Barberton town causing the separation of the greenstones into a northern arm (Jamestown Schist Belt) and a southern sector which remained attached to the main greenstone belt (Moodies Hills). The ballooning pluton produced vertical as well as horizontal flattening stresses, the latter reactivating earlier high-angle faults and resulting in subhorizontal strike-slip movements, particularly along the Barbrook Fault Zone, which acted as a right-lateral strike-slip fault. Formations north of this fault were buckled, following progressive deformation in the region known as the Sheba Hills, into major synclinal folds (Eureka and Ulundi Synclines) with folded axial planes that dip steeply to the south, southeast or east. The second granitoid intrusion (Stentor Pluton), which has been extensively modified by subsequent magmatic events, caused significant flattening of greenstone belt rocks in the northeastern part of the Barberton Greenstone Belt (Three Sisters region) as well as in other areas rimming the granitic body. Combined, the two plutons produced a wide range of interference and reactivated structures particularly affecting a triangular region extending from the Jamestown Schist Belt into the area occupied by the New Consort Gold Mine and areas to the east. This paper attempts to outline, in the simplest manner, the geological and structural evolution of the main gold-producing region of the Barberton Goldfield. The principal aim is therefore to highlight the structural influence of the diapiric plutonism and the manner in which the plutons contributed significantly to the horizontal reactivation of pre-existing regional faults, which in turn, resulted in the progressive deformation of a heterogeneous lithological terrane.
Pengaruh Blended Learning Model dan Sikap Berbahasa terhadap Kemampuan Menulis Bahasa Inggris Siswa Sekolah Menegah Atas Negeri di Kota Pekanbaru
Authors: Wahyuni Sri , Etfita Fauzul 
Published: July 2019

Writing ability is one of the demands of learning English. However, writing is also the most difficult skill faced by high school students in the city of Pekanbaru. For this reason, the learning model should be appropriate in accordance with the age development and problems faced by students. Thus, the authors attempted to analyze; (1) the effect of blended learning on students’ writing ability; (2) the effectof language attitude on students’ writing ability; and (3) the effect of
blended learning model and language attitude on students’ writing ability. Referring to the problems and purposes of this study, the author used a quantitative approach namely the experimental method with factorial design. The research was conducted at SMAN 6 Pekanbaru by using a random sampling technique. To measure students' writing ability, the researchersemployed a writing test. Whereas to obtain information or collect data related to language attitude in this study, the researchers distributed questionnaires that have been tested for validity and reliability. After collecting data, researchers tested the data and hypotheses using SPSS 21. In this study, data was normally distributed and the population was homogeneous so that hypothesis testing could be continued. Based on the results of hypothesis testing, this study could be concluded that; (1) there was an effect of blended learning on students’ writing ability; (2) there was an effectof language attitude on students’ writing ability; and (3) there was no effect of blended learning model and language attitude on students’ writing ability.
Administrative and Organizational Mechanisms   for the Spatial Development of Shrinking Cities
Authors: Plisetskii E.  E. 
Published: July 2019

The problem of population decline, economic activity decrease and deterioration of investment attractiveness has become topical on the agenda of sustainable development of industrial or single-industry cities in most developed countries (uSA, Eu, Australia) during the last century. New urban trends are increasing of the economic efficiency of urban areas usage, encouraging restrain of the population, including youth and employable people, and attracting new ones through the creation of required jobs and the formation of comfortable living conditions. All of these demanded the mechanisms and tools development for the social and economic development of cities. world experience has accumulated various approaches to the transformation of shrinking cities — economic and financial instruments supporting the development and provision of partnership of key stakeholders of cities, integrated urban development programs, tools for optimizing the spatial and territorial structure of cities, etc. The paper analyzes the existing practices of application of administrative and organizational mechanisms for the spatial development of shrinking cities in the united States, Britain, Germany, Spain and Australia. Based on the analysis, key conclusions are drawn about the factors that divide the trajectories from decline to the cities restoration. The practical significance of the conclusions lies in the possibility of using them in the development of strategies and programs for the russian cities development that are experiencing a tendency towards a contraction of economic and territorial space.
Análise dos Efeitos da Expansão Urbana de Manaus-AM Sobre Parâmetros Ambientais Através de Imagens de Satélite (Analysis of the Urban Expansion Effects of Manaus-AM on Environmental Parameters through Satellite Images)
Authors: Santos Carlos Antonio Costa dos , Lima Jeane Rafaele Araújo 
Published: July 2019

O estudo tem como objetivo principal estimar os fluxos de energia à superfície e analisar a evolução das possíveis ilhas de calor urbano na região metropolitana de Manaus-AM, comparando o ano 1990 e 2011 e relacionando a retirada da cobertura vegetal com a intensidade desse fenômeno, utilizando técnicas de sensoriamento remoto. Para a realização deste estudo foram utilizadas imagens do satélite Landsat 5-TM, dados meteorológicos oriundos do INMET e aplicado o algoritmo SEBAL para obtenção dos componentes do balanço de energia à superfície. Observou-se que o sensoriamento remoto se apresenta como ferramenta promissora no estudo da dinâmica das cidades, assim como, dos efeitos da expansão urbana nos fluxos de energia entre a superfície e a atmosfera e, que a substituição de superfícies vegetadas por materiais utilizados nas áreas urbanas resultam em redução da energia utilizada no processo de evaporação e aumento da energia para aquecimento do ar e do solo, ocasionando aumento das temperaturas. AbstractThe main objective of this study was to estimate the surface energy fluxes and to analyze the evolution of the possible rban heat islands in the metropolitan area of Manaus-AM, comparing the years 1990 and 2011 and relating the retreat of the vegetable covering with the intensity of that phenomenon by using remote sensing techniques. This study used images from Landsat 5-TM satellite, as well as, meteorological data originated from INMET and applied the algorithm SEBAL for obtaining of the components of the energy balance. The remote sensing technique is a promising tool in thestudy of the dynamics of the cities, as well as, of the effects of the urban expansion in the energy fluxes between the surface and the atmosphere. The change of vegetated surfaces by materials used in the urban areas results in a reduction of the energy used in the evaporative process and increase the energy for heating of air and soil, causing increase of the temperatures.
Análisis del benchmarking como herramienta de apoyo para la toma de decisiones de las empresas
Authors: Avegno Muñoz Linda Samantha , Santillán Párraga Hasly Anais , Sisa Guzmán Diana Elizabeth , Encalada Tenorio Georgina Janeth 
Published: July 2019

En el presente artículo se expone el benchmarking como una herramienta de apoyo para la toma de decisiones, para realizar el análisis correspondiente se utilizaron datos obtenidos de libros, y ejemplares facilitados por instituciones que utilizaron el benchmarking. El método aplicado para este estudio fue el método inductivo, los resultados que obtuvimos nos demostraron que el benchmarking proporciona grandes beneficios para las entidades en general y permite un desarrollo adecuado del proceso de toma de decisiones, en conclusión el benchmarking es una herramienta muy eficiente para la toma de decisiones.
Análisis comparativos de los estados financieros de la empresa Holcim S.A.
Authors: Chacón Ponce Lissette Andreina , Valle Carrasco Karen Estefanía , Ocampo Muñoz Érika Silvana , Suárez López Sergio Cristóbal 
Published: July 2019

La finalidad de este estudio comparativo consistió en exponer el análisis de los estados financieros de la empresa Holcim Ecuador S.A, en base a la necesidad de dar a conocer el origen y un poco de historia acerca de cómo fue creada la empresa, que cambios tuvo, en que año llego a nuestro país, entre otras cosas; Se detalla de manera general como se ha dado la evolución de la organización durante el periodo de los últimos 5 años y cuáles fueron los factores que provocaron dicha evolución, se demostrara mediante las técnicas que se utilizan para los análisis financieros como son los rateos financieros, que son de suma importancia como: el ROA, ROE y margen de utilidad, mediante estas razones mencionadas se puede dar a conocer cuál es la situación que atraviesa la empresa en estos momentos y poder tomar decisiones de forma inmediata; también se explica detalladamente como obtener dichos resultados.
ANALISIS GERAK RAMBAT LERENG DAN UPAYA PERBAIKAN KESTABILANNYA
Authors: Wisyanto Wisyanto 
Published: July 2019

Indonesia dengan proses alamnya yang dinamis telah membuat wilayahnya memiliki beragam morphologi. Morfologi terjal, lapisan batuan, jenis tanah dan tingginya curah hujan dalam hal ini Banjarnegara, Jawa Tengah telah menjadikan wilayahnya rentan terhadap gerakan tanah. Gerakan tanah tidak hanya dapat menimbulkan korban jiwa, tetapi juga dapat merusak banyak fasilitas umum secara berulang. Hal ini juga terjadi pada ruas jalan pada jalan yang menghubungkan Kota Banjarnegara dengan PLTA Tulis. Penulis tertarik dengan fenomena ini dan mencoba melakukan kajian kestabilan lereng selama 3 bulan (September sampai Desember). Kajian dilakukan melalui pengamatan beberapa patok pantau untuk mengetahui pola gerak lerengnya. Dengan mengetahui arah da kecepatan pergerakan lereng, ditambah dengan informasi jenis batuan, tanah, topografi detail dan tutupan tumbuhannya, penulis dapat menentukan beberapa upaya yang dapat dilakukan untuk meningkatkan kestabilan lereng disekitar ruas jalan.
Determination of Some Pomological Features of Bilberries (Vaccinium myrtillus L.) Native to Sarıkamış (Kars), Turkey
Authors: AKIN Melekşen , PERAL EYDURAN Sadiye , GAZİOĞLU ŞENSOY Ruhan İlknur , EYDURAN Ecevit 
Published: July 2019

This study
was carried out to evaluate some physical and chemical properties of wild
bilberry fruits collected from Sarıkamış forest of Kars province in Eastern
Anatolia Region of Turkey. For this purpose, berry width, berry length, berry
weight, pH, titratable acidity content (TAC), soluble solid content (SSC),
taste, aroma, L*, a*, and b* color values were
measured based on 4 replications of 20 fruit samples each from 20 plant
genotypes. The results were interpreted on average values. Average values for
width, length, weight, pH, TAC, SSC, taste, aroma and L*, a*, b* color values of berries were found
as: 9.12 mm, 8.02 mm, 5.08 g, 2.22, 2.70%, 7.41%, 2.95, 3.00, 14.88, 1.72 and
0.06, respectively. Range values for the corresponding characteristics were
determined as: 7.55 to 10.37 mm, 6.95 to 9.80 mm, 3.00 to 7.00 g, 2.04 to 2.60
%, 2.40 to 3.00 %, 6.00 to 8.50, 2.00 to 4.00, 13.24 to 16.30, 1.004 to 3.04
and -1.98 to 3.87, respectively (There is no aroma interval between these
values). The current research is a preliminary evaluation for some physical and
chemical characteristics of wild bilberries native to Sarıkamış district.
Consequently, more detailed studies should be conducted on further physical and
chemical characteristics of bilberries for breeding purposes and to gain
baseline knowledge on the flora of Turkey.