bluuebunny/crossref_metadata_2025 huggingface dataset:
Estado de avance de las investigaciones arqueológicas en el sitio Empalme Querandíes 1 (centro de la subregión Pampa Húmeda, Provincia de Buenos Aires)
Authors: Messineo Pablo G. , Álvarez María Clara , Dubois Cristian Favier , Steffan Pamela , Colantonio María José
Published: February 2020

El objetivo de este trabajo es presentar el estado de avance de las distintas líneas de evidencia (geoambiental, cronología, tafonomía, subsistencia y tendencias tecnológicas) obtenidas a partir de las investigaciones arqueológicas llevadas a cabo en el sitio Empalme Querandíes 1 (centro de la subregión Pampa Húmeda, provincia de Buenos Aires). Los estudios estratigráficos y tafonómicos sugieren que el contexto presenta una baja integridad y resolución, abarcando diferentes eventos de ocupación del Holoceno tardío inicial (entre ca. 3100-2000 años AP). El análisis faunístico evidencia que el guanaco, el venado de las pampas, el ñandú y cuatro especies de armadillos formaron parte de la dieta. Asimismo, los restos óseos de por lo menos las dos primeras especies fueron utilizados como materia prima para confeccionar instrumentos. Respecto del material lítico, las rocas mejor representadas son la ortocuarcita y la ftanita, observándose diferencias en los objetivos de producción y en las estrategias vinculadas con su utilización. En el caso de la cerámica, se registró la presencia de tiestos no decorados y decorados con motivos geométricos. Las distintas líneas de evidencia sugieren que parte de las ocupaciones de este sitio multicomponente estarían vinculadas con loci de actividades múltiples de campamentos base.
Arqueología de la Agricultura. Casos de estudio en la región andinda argentina
Authors: Salminci Pedro
Published: February 2020

Reseña de: Arqueología de la Agricultura. Casos de estudio en la región andinda argentina. (M. A. Korstanje y M. N. Quesada editores). Ediciones Magna, San Miguel de Tucumán.ISBN: 978-987-1726-08-0.
TAFONOMÍA DE VERTEBRADOS HOLOCÉNICOS DEL SITIO ARQUEOLÓGICO CUEVA SALAMANCA 1 EN LA PUNA SALADA ARGENTINA
Authors: Marozzi Antonela , Mondini Mariana , Pintar Elizabeth
Published: February 2020

Se presentan los resultados del análisis tafonómico de restos de vertebrados procedentes del sitio arqueológico Cueva Salamanca 1 (CS1), situado en Antofagasta de la Sierra, Catamarca, a 3665 msnm, dentro de la Puna Salada argentina. Este sitio contiene ocupaciones de cazadoresrecolectores con dataciones del Holoceno Medio. Se trabajó con una muestra de especímenes identificables (n=277) y una de especímenes no identificables (n=514) de los diferentes estratos del sitio. La conservación de los materiales analizados es buena y no se observaron sesgos tafonómicos significativos. En general predominaron los procesos naturales intra-sitio, como la acción de humedad, por sobre procesos atmosféricos como la meteorización, aunque en ningún caso implicaron daños sustanciales. La alta frecuencia de trazas antrópicas en relación con la baja incidencia de las de carnívoros sugiere que los humanos fueron el principal agente de acumulación. La información obtenida se comparó con la de otros sitios arqueológicos, y con los datos paleoecológicos y paleoambientales disponibles para la región.
UN PATRIMONIO CON VALORACIONES “DISONANTES”: EL SITIO ARQUEOLÓGICO TAMBERÍA DEL INCA (CHILECITO, LA RIOJA).
Authors: Ruarte Paula
Published: February 2020

El presente trabajo aborda las discusiones en torno a las disonancias existentes entre los distintos significados atribuidos al patrimonio por los actores que participan en su valoración. Asimismo, se ahonda en las discusiones conceptuales actuales sobre las tensiones y conflictos que suceden en relación al patrimonio y su vinculación con la identidad local. El sitio arqueológico “Tambería del Inca”, ubicado en la ciudad de Chilecito, provincia de La Rioja, plantea varios interrogantes acerca del proceso de su construcción social como referente identitario. Asimismo, brinda oportunidades para abordar las diversas atribuciones de valor que ha recibido a lo largo del siglo XX hasta la actualidad tanto desde las autoridades nacionales y provinciales, como del saber experto y principalmente de la comunidad de Chilecito. Se problematizan los alcances y limitaciones del marco legal del sitio, reflexionando sobre el contexto en el cual fueron elaborados e implementados como parte de políticas provinciales de puesta en valor.
Puntas cola de pescado de la Costa Occidental del Río Uruguay Medio, Litoral Argentino
Authors: Mujica Juan
Published: February 2020

Puntas cola de pescado de la Costa Occidental del Río Uruguay Medio, Litoral Argentino
Las Representaciones rupestres y su relación con el paisaje. Aproximación a un análisis regional regional en el sector occidental de las Sierras de Córdoba
Authors: Recalde María Andrea
Published: February 2020

Las Representaciones rupestres y su relación con el paisaje. Aproximación a un análisis regional regional en el sector occidental de las Sierras de Córdoba
Pengaruh Variasi Kecepatan Putar Dalam Metode Stir Casting Terhadap Sifat Kekerasan Al- Sic Untuk Aplikasi Blok Rem Kereta Api
Authors: Wilastari Santhi , AP Bayuseno , Nugroho Sri
Published: February 2020

Penelitian ini dilakukan untuk mengetahui tentang sifat kekerasan pada Al- SiC yang dihasilkan dari proses pengecoran dengan metode stir casting dengan variasi putaran 300, 500, dan 700 rpm dengan lama waktu pengadukan 10 menit. Pada penelitian ini Al yang digunakan adalah Al hasil limbah produksi dengan penambahan SiC sebesar 10% sebagai penguat yang dicampurkan pada saat pengecoran. Dari hasil penelitian ditemukan bahwa nilai kekerasan hasil pengecoran dengan variasi putaran masih jauh dibandingkan kekerasan besi cor karena kadar SiC sebagai penguat yang dicampurkan masih sangat sedikit hanya 10% sehingga tingkat kekerasannya juga masih sangat rendah. Tetapi bila dibandingkan dengan Al murni nilai kekerasan hasil pengecoran dengan variasi putaran berada diatas Al murni yang artinya kekerasan hasil pengecoran dengan variasi putaran lebih baik daripada kekerasan Al murni. Nilai kekerasan tertinggi terjadi pada posisi bawah sedangkan nilai kekerasan terendah terjadi pada posisi atas. Hal ini terjadi karena pada saat pengecoran ada waktu jeda antara selesainya proses pengadukan dengan waktu penuangan sehingga terjadi proses pengendapan yaitu turunnya SiC ke posisi bawah.
Karakterisasi Blok Rem Kereta Api Berbahan Al-Sic Berdasarkan Komposisi Material
Authors: Kurniawan Ipung , AP Bayuseno
Published: February 2020

Brake blocks is a vital component in the braking system of trains. Generally material brake blocks made ​​of cast iron. But the usage is still less effective than the weight and resistance to wear. Al-SiC composites with the variation of weight fraction of 5, 10 and 15% SiC is expected to address the problem as expected. Stir casting method was chosen for the process of formation of Metal Matrix Composites (MMC), which includes the characterization of microstructure and wear of materials. Wear and tear on the material tested by the method ogoshi at 2.12 kg load and a constant sliding speed 0.244 m/s for 60 seconds. Small value indicates the specific wear resistance of materials against wear is good.
Implementasi Vgm (Verified Gross Mass)
Authors: Ridwan
Published: February 2020

Keselamatan dan keamanan pelayaran merupakan suatu kajian yang harus mendapatkan perhatian yang lebih serius pada decade terakhir  ini, mengingat semakin banyaknya kasus kecelakaan kapal yang diakibatkan oleh adanya human-error. Perhitungan stabilitas kapal dengan basic jumlah dan berat dari tiap party barang yang dimuat diatas kapal adalah salahsatu factor penentu dalam menyusun stowage barang diatas kapal terutama untuk kapal-kapal cellular yang memuat barang dalam kemasan container. Karena sebagaimana diketahui bersama bahwa pada lazimnya shipper hanya memberitahukan perkiraan berat barangnya saja tanpa mencantumkan berat containernya, sedangkan dalam kenyataannya barang tersebut dimuat diatas kapal bersamaan dengan containernya, sehingga bagi shipping line data berat barang yang disampaikan oleh shipper tersebut belum akurat. Olehkarena itu melalui organisasi maritime dunia (IMO) diterbitkanlah suatu amandemen yang bersifat mandatory kepada semua shipper diwajibkan untuk menyampaikan verifikasi hasil timbang barang dengan benar termasuk berat containernya secara tertulis kepada shipping-line sebelum container tersebut dikapalkan. Bila tidak ada surat pernyataan (verifikasi) tentang berat barang dan containernya, maka shipping line dilarang untuk memuat container tersebut. Pernyataan atau verifikasi ini dikenal dengan istilah VGM (verified Gross Mass)
DESENVOLVIMENTO DE UMA PLATAFORMA PARA DISPOSITIVOS MÓVEIS PARA APROXIMAR PRODUTORES E CONSUMIDORES DE PRODUTOS ORGÂNICOS.
Authors: Filho Eduardo Santos Miguel , Souza Arley Ferreira de
Published: February 2020

Segundo o MDA (Ministério do Desenvolvimento Agrário) a produção nacional de produtos orgânicos cresce 20% ao ano e vários outros brasileiros possuem o interesse de consumir produtos orgânicos e frescos. Porém, o consumo é limitado pela baixa disponibilidade e pelo custo superior, essa despesa pode ser atribuída aos custos do intermediário, graças a maior perecibilidade dos produtos. O objetivo deste trabalho é criar um Aplicativo Web Progressivo, ou seja, um Aplicativo Web que funciona da mesma forma de um aplicativo nativo para dispositivos Android e iOS, para os produtores anunciarem os seus produtos e os consumidores localizarem e entrarem em contato com os produtores. A ideia é fomentar pessoas comuns a produzirem e anunciarem produtos naturais.
COMPRESSÃO DE MATERIAL COMPÓSITO – RESINA PARA LAMINAÇÃO (AERONÁUTICA X AUTOMOBILÍSTICA)
Authors: Gouveia Gabriel Amal Rebelo , Filho Márcio C. S. , Lugones Santiago M.
Published: February 2020

No presente trabalho foram realizados testes de compressão com o propósito de obter o comportamento e os parâmetros de compressão mais importantes de diferentes resinas para serem utilizados em simulações estruturais em diferentes contextos que envolvam efeitos de flambagem. Pretende-se gerar um banco de dados do comportamento da resina epóxi, amplamente utilizada em aeronáutica. A resina automobilística é o outro alvo do trabalho devido a seus benefícios econômicos.
IMPLANTAÇÃO DE MICRO MOBILIDADE URBANA ATRAVÉS DAS PATINETES ELÉTRICAS NO MUNICÍPIO DE SÃO JOSÉ DOS CAMPOS/SP COMO LOGÍSTICA FLEXÍVEL DE LOCOMOÇÃO
Authors: Amorim Raposo Leticia Lourenço , Moura Roque Antônio de
Published: February 2020

O aumento expressivo de veículos e a falta de infraestrutura capaz de evitar congestionamentos no trânsito urbano, forçou as cidades a adotarem estratégias e uso da micromobilidade que inclui veículos como as patinetes e bicicletas. A micromobilidade é prática, sustentável e flexível para deslocamentos em curtos trajetos urbanos, que muitas vezes são percorridos a pé ou por outro tipo de condução. Este trabalho objetiva demonstrar que a implantação das patinetes em adição as bicicletas, pode ser uma alternativa de mobilidade urbana. O método adotado inclui uma pesquisa bibliográfica, seguida de uma entrevista a 356 voluntários de ambos os sexos que responderam três perguntas distintas. Os resultados demonstraram a preferência por transportes público (50,8%), uso de patinetes como meio de locomoção (78,9 %) e que a maior parte dos entrevistados consideram a patinete como micromobilidade (45,8%).
PROJETO E FABRICAÇÃO DE UMA TORRE PARA ENSAIOS AERODINÂMICOS
Authors: Cavalcanti Vinícius Queiroz , Lugones Santiago Martin
Published: February 2020

No presente trabalho foi realizada a fabricação de uma estrutura de baixo custo para fins de aquisição de dados úteis de validação de cálculos e estruturação de relatórios da equipe Megazord AeroDesign, representante da Faculdade de Tecnologia Professor Jessen Vidal de São Jose dos Campos. A partir de seis metros de barras de aço metalon, foi projetada a melhor disposição de material para resistir esforços e a melhor solução de montagem e desmontagem para posterior logística e armazenamento. Foi realizado também, uma análise estrutural da torre a fim de validar o seu desempenho desde o ponto de vista de segurança.
Pengelolaan Keuangan Bumdes Sambimulyo di Kawasan Geoheritage â€œTebing Breksiâ€ Yogyakarta
Authors: Wiratna Sujarweni Veronika , Laut Mertha Jaya I Made
Published: February 2020

Keberadaan BUMDes diharapkan dapat meningkatkan taraf hidup masyarakat desa sekitar. Untuk itu, perlu dilakukan manajemen yang baik dalam pengelolaan keuangannya. Sedangkan, para pengurus BUMDesSambimulyo mayoritas masih belum terlalu paham dengan Akuntansi. Oleh sebab itu, pengabdi menawarkanpelatihan pembuatan laporan keuangan untuk pertanggungjawaban keuangan BUMDes beserta bukupengelolaan keuangan BUMDes sebagai pedoman pengurus BUMDes. Setelah kegiatan selesai dilaksanakan,para peserta pengelola usaha BumDes Sambimulyo Desa Sambirejo memiliki kemampuan menyusun laporandan pengelolaan keuangan usahanya. Pengurus BUMDes Sambimulyo Desa Sambirejo juga dapat menyusunlaporan keuangan secara baik dan benar serta dapat dipertanggungjawabkan. Pengabdi juga membuat bukutentang pengelolaan keuangan BUMDes.Â
Pemanfaatan Lahan Sempit Sebagai Tempat Budidaya Ikan Lele Organik Di Kampung Palangpang Kecamatan Ciemas
Authors: Suryaman Suryaman
Published: February 2020

Peningkatan kesejahteraan masyarakat bukan tanggung jawab pemerintah semata, akan tetapidiperlukan partisipasi aktif dari masyarakat khususnya kalangan akademisi. Pengabdian ini dilaksanakandengan tujuan untuk membantu mencari alternatif tambahan penghasilan warga kampung Palangpang, yang mayoritas penduduknya berprofesi sebagai nelayan dan petani. Meskipun kampung ini berada didekat pantai dan perekonomian masyarakatnya tergantung dari hasil laut, akan tetapi sebagai masyarakatada yang tertarik untuk mempelajari budi daya ikan air tawar seperti lele sebagai usaha mencaritambahan pendapatan keluarga. Pemanfaatan pekarangan penduduk untuk membudidayakan lele dengan menggunakan kolamterpal bulat, pemberian pelatihan dan pendampingan tentang pengaturan air kolam, pemilihan benih lele,pemilihan pakan, pengelolaan air, dan pemasaran walaupun belum signifikan tetapi telah membantuperekonomian sebagian masyarakat di kampung Palangpang. Panen dilakukan setelah masa pemeliharaan3 bulan, dan berdasarkan perhitungan rata-rata pendapatan sehari-hari menunjukkan peningkatan dari yang asalnya Rp.30.000,- menjadi Rp. 35.000,-. Kesimpulannya, bahwa budidaya ikan lele dapat menjadisalah satu alternatif peningkatan kesejahteraan warga melalui pemanfaatan lahan pekarangan.Â
Pengawasan DPRD DIY Terhadap Pemerintah Daerah Dalam Penggunaan Dana Keistimewaan
Authors: Saputra Yulianta
Published: February 2020

Penelitian ini bertujuan untuk mengkaji dan menganalisis pengawasan yang dilakukan DPRD DIY terhadap Pemerintah Daerah dalam penggunaan Dana Keistimewaan beserta tindak lanjut yang dilakukan DPRD DIY dalam pelaksanaan pengawasan tersebut. .Selain itu, penelitian ini juga bertujuan untuk mengkaji dan menganalisis faktor-faktor yang menghambat DPRD DIY dalam melaksanaan pengawasan terhadap Pemerintah Daerah dalam penggunaan Dana Keistimewaan dan upaya-upaya yang dilakukan untuk mengatasi hambatan tersebut. Penelitian ini adalah penelitian hukum normatif empiris, yaitu penelitian hukum normatif yang ditunjang dengan penelitian hukum empiris. Data dalam penelitian ini meliputi data primer dan data sekunder, yang terdiri dari bahan hukum primer, bahan hukum sekunder, dan bahan hukum tersier. Data yang diperoleh kemudian diolah secara kualitatif dan dianalisis secara deskriptif preskriptif. Hasil dari penelitian ini menunjukkan pelaksanaan pengawasan yang dilakukan oleh DPRD DIY terhadap Pemerintah Daerah dalam kaitannya dengan penggunaan Dana Keistimewaan masih belum bisa dilaksanakan secara optimal. Hal ini karena DPRD DIY kurang mengetahui informasi seputar Dana Keistimewaan yang akan diawasi. Di samping itu, tindak lanjut dari pelaksanaan pengawasan DPRD DIY tersebut juga belum signifikan sebabnya DPRD DIY tidak berani menggunakan hak interpelasinya. Pengawasan yang dilakukan oleh DPRD DIY masih menemui hambatan seperti aspek regulasi, hambatan internal, dan mekanisme penyampaian informasi seputar Dana Keistimewaan oleh pemerintah daerah yang masih kurang. Dalam mengatasi hambatan-hambatan tersebut juga diikuti dengan meningkatkan sikap disiplin, taat pada tata tertib dan kode etik serta melakukan komunikasi secara lebih intensif dengan pemerintah daerah.
PENGARUH DOSIS NITROGEN DAN PUPUK KANDANG SAPI FERMENTASI TERHADAP PERTUMBUHAN DAN HASIL SAWI (Brassica juncea L.)
Authors: Suarsana Made , Wahyuni Putu Sri , Ariawan Kadek Dody
Published: February 2020

Tujuan penelitian adalah untuk mengetahui pengaruh dosis pupuk nitrogen, pemberian pupuk kandang sapi yang difermentasi dengan pupuk hayati “Biota Max ” dan interaksinya terhadap pertumbuhan dan hasil sawi. Percobaan ini telah dilakukan di Banjar Dinas Gambuh, Desa Selat, Kecamatan Sukasada, Kabupaten Buleleng, dengan ketinggian tempat ± 300 m dari atas permukaan laut pada bulan Mei sampai dengan Juli 2013. Percobaan dilakukan dengan Rancangan Acak Kelompok (RAK) faktorial dengan dua faktor. Faktor pertama, pemberian dosis pupuk nitrogen (N), yaitu N0: Tanpa pupuk N 0 kg.ha-1 atau 0 kg.petak-1, N1: Dengan pupuk N pada dosis 45 kg.ha-1atau 9 g.petak-1, N2: Dengan pupuk N pada dosis 90 kg.ha-1 atau 18 g.petak-1Dengan pupuk N pada dosis 135 kg.ha-1atau 27 g.petak-1. Faktor kedua adalah pemberian pupuk kandang sapi yang difermentasi dengan pupuk hayati Biota MaxTM(P) dengan tiga tingkat perlakuan, yaitu P0: Tanpa pupuk kandang sapi, P1: Pemberian pupuk kandang sapi tanpa pupuk hayati Biota< MaxTM, dan P2: Pemberian pupuk kandang sapi yang difermentasi dengan pupuk hayati Biota MaxTM. Dengan demikian terdapat 12 perlakuan kombinasi masing-masing perlakuan diulang tiga kali. Hasil percobaan menjukkan, berat kering oven tajuk terbaik diberikan pada dosis pupuk nitrogen 90 kg.ha-1 (N2), yaitu seberat 7,56 g, berbeda sangat nyata (p<0,01). Hubungan antara dosis pupuk nitrogen dan berat kering oven tajuk menunjukan hubungan kuadratik, yaitu Ŷ =-0.0003x2+ 0.0474x + 5.1382, dengan R2= 0.6563. Pemberian pupuk kandang sapi yang difermentasi dengan pupuk hayati “Biota MaxTM (P2), memberikan berat kering oven tajuk terberat yaitu 7,95 g, berbeda sangat nyata (p<0,01) atau secara nyata lebih berat 48,67% dibandingkan dengan berat kering oven tajuk terendah dengan tanpa pemberian pupuk kandang sapi (P0). Interaksi antara kedua perlakuan berpengaruh nyata (p<0,05) terhadap pertumbuhan dan hasil sawi
PENGARUH LAMA PERENDAMAN DAN KONSENTRASI ATONIK TERHADAP PERKECAMBAHAN BENIH JATI (Tectona grandis L.)
Authors: Srilaba Nyoman , Purba Jhon Hardy , Arsana I Ketut Ngurah
Published: February 2020

Penelitian ini bertujuan untuk mengetahui pengaruh lama perendaman dan konsentrasi atonik serta interaksinya terhadap perkecambahan benih jati. Penelitian ini menggunakan rancangan acak kelompok terdiri dari 2 faktor yaitu lama perendaman (6 hari, 9 hari, dan 12 hari) serta konsentrasi atonik (0 ml/l larutan, 0,5 ml/l larutan, 1 ml/l larutan dan 1,5 ml/l larutan). Variabel yang diamati meliputi benih mulai berkecambah, akhir perkecambahan, lama perkecambahan, benih tidak berkecambah, benih rusah, benih berkecambah, kecepatan tumbuh kecambah, kecambah tumbuh dan tinggi kecambah umur 60 hari. Hasil penelitian menunjukkan lama perendaman berpengaruh sangat nyata terhadap benih mulai berkecambah, benih tidak berkecambah, benih rusak, benih berkecambah, kecepatan tumbuh kecambah, kecambah yang tumbuh dan tinggi kecambah umur 60 hari.  Sedangkan terhadap variabel yang lain berpengaruh tidak nyata.  Lama perendaman benih selama 9 hari menunjukkan hasil yang terbaik terhadap benih mulai berkecambah yang tercepat yaitu 5 hst, benih yang tidak berkecambah terkecil yaitu 12,33%, benih berkecambah terbanyak yaitu 28,83%, kecepatan tumbuh kecambah yaitu 2,57% per etmal dan kecambah yang tumbuh yaitu 23%.  Tetapi pada variabel tinggi kecambah umur 60 hari, lama perendaman selama 12 hari memberikan hasil yang paling tinggi yaitu 14,56 cm. Konsentrasi atonik berpengaruh sangat nyata terhadap benih rusak dan benih berkecambah dan berpengaruh nyata terhadap benih mulai berkecambah, benih tidak berkecambah, kecepatan tumbuh kecambah, kecambah yang tumbuh dan tinggi kecambah umur 60 hari.  Sedangkan terhadap variabel yang lain berpengaruh tidak nyata.  Konsentrasi atonik 1,5 ml/l menunjukkan hasil benih rusak terendah yaitu 12,67%, benih berkecambah tertinggi yaitu 26%. Interaksi antara lama perendaman selama 9 hari dan konsentrasi atonik 1,5 ml/l larutan menunjukkan hasil terbaik dibandingkan dengan interaksi lainnya.
PENGARUH KONSENTRASI GIBERELIN DAN JUMLAH BUAH TERHADAP PERTUMBUHAN DAN HASIL MELON (Cucumis melo Linn.)
Authors: Purba Jhon Hardy , Suwardike Putu , Suwarjata I Gede
Published: February 2020

Penelitian yang bertujuan untuk mengetahui pengaruh konsentrasei giberelin dan jumlah buah terhadap pertumbuhan dan hasil melon dilaksanakan bulan Juli-September 2017 di Desa Tejakula, Kabupaten Buleleng dengan ketinggian 25 meter dari atas permukaan laut. Penelitian lapang ini menggunakan Rancangan Acak Kelompok (RAK), terdiri atas dua faktor yang disusun secara faktorial. Faktor pertama adalah konsentrasi Giberelin (GA3) (G) dengan 4 taraf yaitu konsentrasi giberelin 0,00 g.l-1 air (G0), konsentrasi giberelin 0,03 g.l-1 air (G1), konsentrasi giberelin 0,06 g.l-1 air (G2), konsentrasi giberelin 0,09 g.l-1 air (G3). Faktor kedua adalah perlakuan jumlah buah (B) dengan tiga taraf yaitu pemeliharaan satu buah pada satu batang pokok per tanaman (B1), pemeliharaan dua buah pada satu batang pokok per tanaman (B2), dan  pemeliharaan dua buah pada dua batang pokok per tanaman (B3). Pemberian giberelin berpengaruh tidak nyata terhadap hasil melon. Perlakuan jumlah buah berpengaruh nyata terhadap berat kering oven buah per tanaman. Perlakuan jumlah buah berpengaruh tidak nyata terhadap pertumbuhan tanaman. Perlakuan kombinasi pemberian giberelin dengan jumlah buah berpengaruh sangat nyata terhadap berat kering oven buah per tanaman.
THE ANALYSIS OF MULTI-APARTMENT HOUSE RENOVATION IN PRIENAI
Authors: Matačiūnas Justas , Migilinskas Darius
Published: February 2020

Seeing as an opportunity to save energy in the housing sector, while improving the country’s image,
social life and comfort, the majority of countries around the world are trying to promote and contribute to the renovation
of housing, and more specifically to the renovation of apartment buildings. States are developing housing energy-saving
programs that are quite complex and involve public authorities, investors, contractors, designers, technicians and residents.
It is important that the home renovation program is comprehensive, clear and appealing to homeowners, and depends on the success
of the renovation and the extent of the apartment renovation in the country. This article will conduct a multicriteria analysis
of the results of the renovation work on five apartment buildings at J. Brundzos St. in Prienai, verify the accuracy of the investment
projects, the actual amount of energy saved and the residents views on the renovation process.
GROWTH on S190814bv: Deep Synoptic Limits on the Optical/Near-infrared Counterpart to a Neutron Star–Black Hole Merger
Authors: Andreoni Igor , Goldstein Daniel A. , Kasliwal Mansi M. , Nugent Peter E. , Zhou Rongpu , Newman Jeffrey A. , Bulla Mattia , Foucart Francois , Hotokezaka Kenta , Nakar Ehud , Nissanke Samaya , Raaijmakers Geert , Bloom Joshua S. , De Kishalay , Jencson Jacob E. , Ward Charlotte , Ahumada Tomás , Anand Shreya , Buckley David A. H. , Caballero-García Maria D. , Castro-Tirado Alberto J. , Copperwheat Christopher M. , Coughlin Michael W. , Cenko S. Bradley , Gromadzki Mariusz , Hu Youdong , Karambelkar Viraj R. , Perley Daniel A. , Sharma Yashvi , Valeev Azamat F. , Cook David O. , Fremling U. Christoffer , Kumar Harsh , Taggart Kirsty , Bagdasaryan Ashot , Cooke Jeff , Dahiwale Aishwarya , Dhawan Suhail , Dobie Dougal , Gatkine Pradip , Golkhou V. Zach , Goobar Ariel , Chaves Andreas Guerra , Hankins Matthew , Kaplan David L. , Kong Albert K. H. , Kool Erik C. , Mohite Siddharth , Sollerman Jesper , Tzanidakis Anastasios , Webb Sara , Zhang Keming
Published: February 2020

On 2019 August 14, the Advanced LIGO and Virgo interferometers detected the high-significance gravitational wave (GW) signal S190814bv. The GW data indicated that the event resulted from a neutron star–black hole (NSBH) merger, or potentially a low-mass binary BH merger. Due to the low false-alarm rate and the precise localization (23 deg2 at 90%), S190814bv presented the community with the best opportunity yet to directly observe an optical/near-infrared counterpart to an NSBH merger. To search for potential counterparts, the GROWTH Collaboration performed real-time image subtraction on six nights of public Dark Energy Camera images acquired in the 3 weeks following the merger, covering >98% of the localization probability. Using a worldwide network of follow-up facilities, we systematically undertook spectroscopy and imaging of optical counterpart candidates. Combining these data with a photometric redshift catalog, we ruled out each candidate as the counterpart to S190814bv and placed deep, uniform limits on the optical emission associated with S190814bv. For the nearest consistent GW distance, radiative transfer simulations of NSBH mergers constrain the ejecta mass of S190814bv to be M
ej < 0.04 M
⊙ at polar viewing angles, or M
ej < 0.03 M
⊙ if the opacity is κ < 2 cm2g−1. Assuming a tidal deformability for the NS at the high end of the range compatible with GW170817 results, our limits would constrain the BH spin component aligned with the orbital momentum to be χ < 0.7 for mass ratios Q < 6, with weaker constraints for more compact NSs.
Radial Velocity Photon Limits for the Dwarf Stars of Spectral Classes F–M
Authors: Reiners Ansgar , Zechmeister Mathias
Published: February 2020

The determination of extrasolar planet masses with the radial velocity (RV) technique requires spectroscopic Doppler information from the planet’s host star, which varies with stellar brightness and temperature. We analyze the Doppler information in spectra from dwarfs of spectral types F–M utilizing empirical information from HARPS and CARMENES data and model spectra. We revisit the question of whether optical or near-infrared instruments are more efficient for RV observations in low-mass stars, and we come to the conclusion that an optical setup (BVR bands) is more efficient than a near-infrared one (YJHK) in dwarf stars hotter than 3200 K. We publish a catalog of 46,480 well-studied F–M dwarfs in the solar neighborhood, and we compare its distribution to more than 1 million stars from Gaia DR2. For all stars, we estimate the RV photon noise achievable in typical observations under the assumption of no activity jitter and slow rotation. We find that with an ESPRESSO-like instrument at an 8 m telescope, a photon noise limit of 10 cm s−1 or lower can be reached in more than 280 stars in a 5 minute observation. At 4 m telescopes, a photon noise limit of 1 m s−1 can be reached in a 10 minute exposure in approximately 10,000 predominantly Sun-like stars with a HARPS-like (optical) instrument. The same applies to ∼3000 stars for a red optical setup that covers the R and I bands and ∼700 stars for a near-infrared instrument. For the latter two, many of the targets are nearby M dwarfs. Finally, we identify targets in which Earth-mass planets within the liquid water habitable zone can cause RV amplitudes comparable to the RV photon noise. Assuming the same exposure times as above, we find that an ESPRESSO-like instrument can reach this limit for 1 M
⊕ planets in more than 1000 stars. The optical, red optical, and near-infrared configurations reach the limit for 2 M
⊕ planets in approximately 500, 700, and 200 stars, respectively. An online tool is provided to estimate the RV photon noise as a function of stellar temperature and brightness and wavelength coverage.
Superhydrogenated Polycyclic Aromatic Hydrocarbon Molecules: Vibrational Spectra in the Infrared
Authors: Yang X. J. , Li Aigen , Glaser R.
Published: February 2020

Superhydrogenated polycyclic aromatic hydrocarbons (PAHs) may be present in H-rich and ultraviolet-poor benign regions. The addition of excess H atoms to PAHs converts the aromatic bonds into aliphatic bonds, the strongest of which falls near 3.4 μm. Therefore, superhydrogenated PAHs are often hypothesized to be a carrier of the 3.4 μm emission feature that typically accompanies the stronger 3.3 μm aromatic C–H stretching feature. To assess this hypothesis, we use density function theory to compute the infrared (IR) vibrational spectra of superhydrogenated PAHs and their ions of various sizes (ranging from benzene and naphthalene to perylene and coronene) and of various degrees of hydrogenation. For each molecule, we derive the intrinsic oscillator strengths of the 3.3 μm aromatic C–H stretch (

) and the 3.4 μm aliphatic C–H stretch (

). By comparing the computationally derived mean ratio of

with the mean ratio of the observed intensities

, we find that the degree of superhydrogenation—the fraction of carbon atoms attached with extra hydrogen atoms—is only ∼2.2% for neutral PAHs, which predominantly emit the 3.3 and 3.4 μm features. We also determine for each molecule the intrinsic band strengths of the 6.2 μm aromatic C–C stretch (

) and the 6.85 μm aliphatic C–H deformation (

). We derive the degree of superhydrogenation from the mean ratio of the observed intensities

and

for neutrals and

for cations to be ≲3.1% for neutrals and ≲8.6% for cations. We conclude that astrophysical PAHs are primarily aromatic and are only marginally superhydrogenated.
Cytoprotective Activity of Ethylacetate Fraction of Picria fel-terrae Lour. Herbs
Authors: Satria Denny , Silalahi Jansen , Haro Ginda , Ilyas Syafruddin , Hasibuan Poppy Anjelisa Zaitun
Published: February 2020

AIM: Free radicals produce from metabolism or enviromental which interact continously with biological system. Picria fel-terrae Lour. herbs have been used as antioxidant and treat various diseases. The aim of this study was to evaluate cytoprotective activity of ethylacetate fraction (EAF) of Picria fel-terrae Lour. herbs.
METHODS: Cytoprotective activity were determined by MTT asay and flow cytometry assay on Vero cells which induced with H2O2 0.8 mM.
RESULTS: EAF at 100 µg/mL were showed highest viability (88.83 ± 2.90%) and ROS expression (66.75%) on Vero cells.
CONCLUSION: EAF of Picria fel-terrae Lour. herbs have cytoprotective activity.
Aménagements de la montagne et gestion de l’eau dans les hautes vallées savoyardes
Authors: Mouthon Fabrice , Meilleur Brien A. , Bimet Anne-Marie
Published: February 2020

L’irrigation traditionnelle en milieu de montagne a fait l’objet de nombreux travaux, notamment dans les Alpes suisses et italiennes ainsi que dans les Pyrénées. Par contraste, les Alpes françaises n’ont donné lieu qu’à des enquêtes déjà anciennes et passablement dispersées. Depuis 2011 , une petite équipe s’est donné pour tâche de réparer cette lacune. Cette contribution se focalise sur la période médiévale en reprenant une partie de ces travaux déjà publiés tout en y ajoutant des données nouvelles. Dans les Alpes françaises du Nord, l’irrigation des prés et prairies se limite pour l’essentiel aux vallées de la Maurienne et de la Tarentaise. Elle est documentée depuis la fin du xiii e   siècle. Les sources médiévales donnent à voir un réseau de canaux déjà en place mais en nette expansion au cours du dernier siècle médiéval. D’abord monopole des seigneurs de ban, l’eau des torrents et les canaux qui la transportent deviennent, à mesure que les communautés montagnardes s’affirment, un bien commun, à l’image des bois et des alpages. Enjeu de nombreux conflits intercommunautaires, cette ressource n’est pas uniquement gérée par les communautés d’habitants, mais plus directement par des syndicats de propriétaires de prés, les consortages, qui prennent en charge la construction des canaux, l’entretien, la police et la répartition des tours d’arrosage.
Following the Phoenician example: western Mediterranean colonization by Spirobranchus cf. tetraceros (Annelida: Serpulidae)
Authors: Palero Ferran , Torrado Hector , Perry Orly , Kupriyanova Elena , Ulman Aylin , Genis-Armero Rebeca , Ten Hove Harry A. , Capaccioni-Azzati Romana
Published: February 2020

A newly established population of the fouling polychaete Spirobranchus cf. tetraceros is reported from the western Mediterranean (Valencia Port). Despite previous intensive surveys, this is the first record for the taxon in the Iberian Peninsula. Molecular analyses revealed that S. cf. tetraceros from Valencia are genetically identical to specimens from Heraklion, Crete, but different from those collected in the Red Sea and S. tetraceros sensu stricto from the type locality in Australia. Mediterranean and Red Sea S. cf. tetraceros form a well-supported monophyletic clade but are clearly distinct from New South Wales specimens of S. tetraceros. Our new molecular evidence supports the hypothesis that S. tetraceros is not a global invader of Australian origin but rather a large species complex in need of a comprehensive worldwide revision. These results highlight the importance of integrative taxonomic research for species with reported global distributions because these taxa may include cryptic invaders. An illustrated morphological account of the Valencia and Heraklion specimens and a taxonomic key for Spirobranchus species in the Mediterranean Sea are provided.
Globalization
Authors: Prabhakar Akhilesh Chandra , Erokhin Vasilii
Published: February 2020

The chapter focuses on contemporary globalization and emerging regional cooperation initiatives in the context of economic development. The authors analyze the trends of the current globalization (new protectionism) and conflicts/contradictions between various forces involved in global economic integration. The chapter also investigates the trends, status, issues, and impacts of the de-linking project of the South initiatives (which can be seen in the forms of various regional blocks). It also provides a comprehensive treatment of the subject and recommends new perspectives on the potential developmental effects of regional cooperation and the implications of regional integration for global economic development.
The Role of Science, Technology, and the Individual on the Way of Software Systems Since 1968
Authors: Altan Zeynep
Published: February 2020

The NATO conference held in Garmisch in 1968 was on the future of the computer and software world, and it presented the process of realization of what has been talked about in those dates to the present day. This chapter also examines the development of software systems since 1968, depending on the technological developments. The contribution of mathematics and physics to the development of information systems was explained in chronological order by comparing the possibilities of yesterday and today. Complementary contributions of science and technology have been evaluated in the evolutionary and revolutionary developments ranging from the definition of information theory in 1948 to teleportation. It can clearly be seen that discrete mathematics directly affects the improvements in computer science. This review study clearly shows that it would not be possible to talk about digital transformation and quantum computation if the discoveries of Shannon, Turing and Neumann, and the studies of other scientists before them did not exist.
Software Architecture Patterns in Big Data
Authors: Ayvaz Serkan , Salman Yucel Batu
Published: February 2020

Traditional monolithic systems are composed of software components that are tightly coupled and composed into one unit. Monolithic systems have scalability issues as all components of the entire system need to be compiled and deployed even for simple modifications. In this chapter, the evolution of the software systems used in big data from monolithic systems to service-oriented architectures was explored. More specifically, the challenges and strengths of implementing service-oriented architectures of microservices and serverless computing were investigated in detail. Moreover, the advantages of migrating to service-oriented architectures and the patterns of migration were discussed.
A New Spread Spectrum Based Approach for Ensuring Energy Efficiency and Security in Wireless Sensor Networks
Authors: Rouissi Nejla , Gharsellaoui Hamza , Bouamama Sadok
Published: February 2020

Wireless sensor networks (WSNs) play a central role in the Internet of Things (IoT). It consists of small-size sensor nodes connected to the internet through gateways providing content rich information. So, the traffic transmission between sensor nodes over radio links requires highly bandwidth and needs to ensure the reliability of the data. Therefore, providing safe communications of sensor data over wireless communication channel plays an essential role. Thus, the important issue on wireless sensor networks is to find an optimal schema that ensuring energy efficiency together with the security. In contrast, implementing traditional cryptographic algorithms is not very well suited for WSNs nodes. In this article, a novel combination of spread spectrum into watermarking scheme is presented. This watermarking schema based on direct-frequency-time spread spectrum secures data communication against jamming and falsification to ensure data integrity and increases resistance to interference at the same time ensures the energy efficiency.
A Cross-Layer Fault Tolerant Protocol with Recovery Mechanism for Clustered Sensor Networks
Authors: Djebaili Yasmine , Bilami Azeddine
Published: February 2020

This article describes how fault tolerance is an essential issue for many WSN (Wireless Sensor Network) applications such as wildlife monitoring, battlefield surveillance and health monitoring. It represents a great challenge for researchers regarding to the characteristics of sensor nodes which are prone to failures due essentially to their limited resources. Faults may occur, not only when sensor nodes exhaust their energy, but also when the congestion phenomenon emerges, because of a high traffic in the network and limited storage capacity of the sensor nodes. In order to support fault tolerance in WSNs, the authors propose a new scheme which incorporates a link quality estimation algorithm and a congestion detection mechanism to enable nodes that present high quality links to be chosen for routing in a non-congested area in case of faults. Evaluations through simulations under NS2 show that our proposed protocol tolerates faults with a minimum cost relatively to HEEP protocol and improves network's performances comparatively to other fault tolerant protocols such as EF-LEACH.
HDAC High-Dimensional Data Aggregation Control Algorithm for Big Data in Wireless Sensor Networks
Authors: Sun Zeyu , Ji Xiaohui
Published: February 2020

The process of high-dimensional data is a hot research area in data mining technology. Due to sparsity of the high-dimensional data, there is significant difference between the high-dimensional space and the low-dimensional space, especially in terms of the data process. Many sophisticated algorithms of low-dimensional space cannot achieve the expected effect, even cannot be used in the high-dimensional space. Thus, this paper proposes a High-dimensional Data Aggregation Control Algorithm for Big Data (HDAC). The algorithm uses information to eliminate the dimension not matching with the specified requirements. Then it uses the principal components method to analyze the rest dimension. Thus, the simplest method is used to reduce the calculation of dimensionality reduction as can as it possible. In the process of data aggregation, the self-adaptive data aggregation mechanism is used to reduce the phenomenon of network delay. Finally, the simulation shows that the algorithm can improve the performance of node energy-consumption, rate of the data post-back and the data delay.
E-VEDGE
Authors: Debbarma Mira Rani , Bhowmik Sangita Rani , Majumder Abhishek
Published: February 2020

Hole minimization in wireless sensor networks is a critical issue. In the presence of obstacles, the issue becomes much more challenging. In this article, a hole minimization technique named enhanced VEDGE (E-VEDGE) has been proposed. The scheme uses both the Voronoi polygon and Delaunay triangulation so that it can work efficiently in presence of obstacle. The proposed scheme, along with two other existing schemes namely: VEDGE and the Delaunay Triangulation-Score (DT-Score) has been simulated. Simulation results show that while the proposed E-VEDGE provides a maximum coverage of 95% to 96.8%, VEDGE and DT-Score provide maximum coverage of 89% to 92.5% and 86% to 87%, respectively.
Localization of Data Sets in Distributed Database Systems Using Slope-Based Vertical Fragmentation
Authors: Mishra Ashish Ranjan , Badal Neelendra
Published: February 2020

This chapter explains an algorithm that can perform vertical partitioning of database tables dynamically on distributed database systems. After vertical partitioning, a new algorithm is developed to allocate that fragments to the proper sites. To accomplish this, three major tasks are performed in this chapter. The first task is to develop a partitioning algorithm, which can partition the relation in such a way that it would perform better than most of the existing algorithms. The second task is to allocate the fragments to the appropriate sites where allocating the fragments will incur low communication cost with respect to other sites. The third task is to monitor the change in frequency of queries at different sites as well as same site. If the change in frequency of queries at different sites as well as the same site exceeds the threshold, the re-partitioning and re-allocation are performed.
Improving Occupants Comfort Through Qualitative Indoor Environments
Authors: Hafiz Dalia
Published: February 2020

Daylight is one key aspect to enhance the sense of place and influence the personal interpretation and impression that last long after leaving the place. However, visual discomfort and glare can distract architects from achieving the most of daylighting. To better achieve visual comfort in daylit space time and space dynamics of the daylight condition, the representation and re-imagining of these dynamics need to be considered. This chapter explored a selected case study that was used for application: a daylit museum located in Washington DC Metropolitan was examined for visual discomfort problems. Since museums are typically carefully lit because of the sensitivity of exhibits, this case study evaluated the daylighting condition in a museum using a series of illuminance field measurements, simulations, and views experienced by occupants along a circulation path through the space. The case study also aimed at understanding how small design changes can affect visual comfort as a tactic for case studies. A collaborative design effort was used in different stages of the case study.
Loss Circulation Prevention during Drilling Operation - Risk Analysis Approach and its Implications
Authors: Okoro Emeka Emmanuel , Okafor Ikechukwu S. , Igwilo Kevin Chinwuba , Orodu Kale B. , Dosunmu Adewale
Published: February 2020

Drilling engineers and operators are stuck with challenges associated with loss circulation of drilling fluids in wellbores during drilling operation. At such times, a clear and careful decision is required in order to minimize cost or save resources that would have been lost in the bid to remedy the situation. This then informs the need to deploy reliable tools that will inform useful decisions as drawn from a thorough risk-analysis coined from the information gathered from the formation characteristics and operating pressure. In this study, a real-time statistic based approach was adopted in carrying out risk-evaluation of loss circulation events in a wellbore. Based on the expected opportunity loss analysis, it is often non-negotiable to consider other options when the analytical solution suggests that the well should be “abandoned”. For the decision tree, at the decision node, D1, the expected loss of the seal off zone option is $161.25, the expected loss of the drill ahead option is $19.2 and the expected loss of the abandon option is $13.2. Since the expected loss of the abandon option is less than the expected value of both the seal off and the drill ahead option, it is recommended to abandon the well. Furthermore, the risk analysis proved to be a veritable tool considering the cost implications of other options; and can also serve as basis for automated decision-making.
Efficient Heuristics for Total Completion Time and Maximum Lateness Bicriteria Scheduling Problems
Authors: Akande Saheed
Published: February 2020

This paper considers the bicriteria scheduling problem of minimizing the total completion time and maximum lateness with zero release dates. The problem is NP hard, though Early Due Date (EDD) and Shortest Processing Time (SPT) rules yielded optimal solutions for maximum lateness and total completion time, respectively if each criterion were to be considered singly. Thus, the values of each of the criteria for the two proposed heuristics; SII and PI were compared to the optimal solution of the sub problems. Results of computational experiment on job sizes varies from 5-100 jobs showed that the two proposed solution methods yielded results not significantly different from the optimal. This is because the two heuristic yielded results not significantly from the optimal sub-problems for the two performance measures at 95% significant level.
Evolutionary Insights into the State-of-the-Art Passive Thermal Control Systems for Thermodynamic Stability of Smallsats
Authors: Walimbe Pratik , Padekar Shubham
Published: February 2020

‘Smallsats,’ originated in the 1990s and popularized again since 2005, is a newly emerging miniaturized form of conventional satellites. Characterized by low mass (usually under 500 kg) and compact dimensions, Smallsats are one of the most sought-after forms of satellites, thanks to the ease offered by the lightweight. However, this privilege brings with itself the significant impediments such as excessive heat generation arising from the compact stature during peak hours of operation, external heat load as a result of radiation. These heat loads manifest themselves as the direct solar flux, earth’s albedo, and earth’s infrared radiation. Sudden temperature drop within the eclipse region results in the permanent-equipmental damage of the electronic circuitry involved, the direct consequence of which is the out-of-tolerance performance of the satellite. Thermal Control Systems (TCS) is the most plausible solution in this regard whose chief objective in any spacecraft or a satellite is to maintain all the subsystems along with the payload components within the stipulated temperature limits for each mission phase. This paper presents the passive thermal control systems (PTCS) in cube-sats. Starting with the discussion of the thermal environment, typical concepts like albedo, earth IR are shed light on. Subsequent discussions follow the study of thermal surface finishes and multi-layer insulations (MLI). Finally, the applications of phase-change materials (PCM) in thermal control systems of cube-sats are introduced. The constant trade-offs between the optimal thermal finish and the overall performance, arising due to incurrence of contamination during synthesis, SLI-MLI thickness and cost associated with increasing thickness and the phase-change materials (PCM’s) and their compatibility, have always been at the pin-point of the research. The widespread importance of thermal control systems is attributed to its ability to ensure the meetings of the gradient requirements, a parameter playing a crucial role in spacecraft dynamics.