bluuebunny/crossref_metadata_2025_split huggingface dataset:
APLIKASI PROBIOTIK Aeromonas sobria A3-51 UNTUK REKAYASA NUTRISI DAN IMUNOMODULASI PERIFITON PAKAN ALAMI IKAN TILAPIA
Authors: Irianto Agus , Iriyanti Ning 
Published: November 2016

Probiotik Aeromonas sobria A3-51 terbukti telah mampu menekan insiden infeksi Aeromonas hydrophila dan A. salmonicida pada berbagai jenis ikan in vitro. Aplikasi melalui pakan mengalami banyak kendala oleh sebab itu dicari metode alternatif dengan menggunakannya untuk memanipulasi komponen mikroba penyusun perifiton pakan alami ikan pada substrat bambu. Dari penelitian yang dilakukan terbukti A. sobria A3-51 mampu mempengaruhi karakter biofilm perifiton serta mikroba pada lingkungan perairan ketika dilakukan di kolam tanah. Faktor lingkungan cukup berpengaruh pada kualitas air seperti penetrasi sinar matahari, pH, dan suhu. Hasil analisis proksimat menunjukkan bahwa protein perifiton cukup tinggi mencapai 22,88%-27,90% sehingga potensial digunakan sebagai bahan pakan pengganti. Adapun dari aspek imunitas, terbukti A. sobria A3-51 mampu menghambat pertumbuhan beragam bakteri Gram-negatif patogen ikan. Ketika dilakukan pengujian secara in vitro terhadap ikan tilapia, hasil belum menunjukkan bukti bahwa perifiton mampu meningkatkan derajat imun ikan tilapia berdasarkan gambaran darah
PENGEMBANGAN BIBIT RUMPUT LAUT Gracilaria sp. HASIL KULTUR JARINGAN
Authors: Mulyaningrum Sri Redjeki Hesti , Daud Rohama 
Published: November 2016

Abstrak lengkap dapat dilihat pada Full PDF Ketersediaan bibit rumput laut untuk menunjang kegiatan budidaya yang berkelanjutan merupakan hal yang tidak dapat diabaikan. Dengan kultur jaringan, penyediaan bibit rumput laut unggul untuk kegiatan budidaya diharapkan dapat dilakukan secara kontinu. Balai Penelitian dan Pengembangan Budidaya Air Payau (BBPBAP) Maros telah mengembangkan bibit rumput laut hasil kultur jaringan. Penelitian ini bertujuan untuk memberikan informasi mengenai potensi pengembangan bibit rumput laut hasil kultur jaringan sehingga dapat digunakan dalam kegiatan budidaya.
Vegetative and reproductive tree phenology of ecological groups in a tropical dry forest in central Veracruz, Mexico
Authors: Williams-Linera Guadalupe , Alvarez-Aquino Claudia 
Published: November 2016

Background Tree phenology has been related to abiotic and biotic factors that trigger and regulate phenological patterns.
Question We investigated whether tree species classified into ecological groups of species of successional status (late-, early-successional tree species) and seed dispersal mode (anemochory, autochory, zoochory) would display different phenological patterns.
Study site and dates A tropical dry forest in eastern Mexico; November 2007 to September 2010.
Methods We monthly recorded leaf fall, leafing, flowering, and fruiting in 165 trees belonging to 16 species tagged along a trail inside a forest fragment (21 ha). Monthly precipitation and temperatures data were obtained from the nearest meteorological station. Phenological periodicity was analyzed using circular statistics.
Results Leaf fall occurred during the dry season and leafing at the beginning of the rainy season. Flowering at community level was not significantly cyclic because of differences within groups: late-successional and zoochorous species displayed a flowering peak during the rainy season, whereas the early-successional, anemochorous and autochorous species do during the dry season. Fruiting occurred over an extended period but showed a cyclic pattern: Late successional and zoochorous species fruited at the beginning of the dry season, whereas early-successional and autochorous species tend to displayed a peak of fruiting at mid-dry season and the anemochorous at the end of the dry season.
Conclusions. Vegetative phenological patterns were similar at the levels studied and were clearly related to climatic variables. However, the phenological patterns of reproduction differed within tree ecological groups and were not consistently correlated with precipitation or temperature.
Cytotoxic activity of marine sponge extracts from the sub-Antarctic Islands and the Southern Ocean
Authors: Olsen Elisabeth K. , De Cerf Christopher K. , Dziwornu Godwin A. , Puccinelli Eleonora , Ansorge Isabelle J. , Samaai Toufiek , Dingle Laura M.K. , Edkins Adrienne L. , Sunassee Suthananda N. 
Published: November 2016

Over the past 50 years, marine invertebrates, especially sponges, have proven to be a valuable source of new and/or bioactive natural products that have the potential to be further developed as lead compounds for pharmaceutical applications. Although marine benthic invertebrate communities occurring off the coast of South Africa have been explored for their biomedicinal potential, the natural product investigation of marine sponges from the sub-Antarctic Islands in the Southern Ocean for the presence of bioactive secondary metabolites has been relatively unexplored thus far. We report here the results for the biological screening of both aqueous and organic extracts prepared from nine specimens of eight species of marine sponges, collected from around Marion Island and the Prince Edward Islands in the Southern Ocean, for their cytotoxic activity against three cancer cell lines. The results obtained through this multidisciplinary collaborative research effort by exclusively South African institutions has provided an exciting opportunity to discover cytotoxic compounds from sub-Antarctic sponges, whilst contributing to our understanding of the biodiversity and geographic distributions of these cold-water invertebrates. Therefore, we acknowledge here the various contributions of the diverse scientific disciplines that played a pivotal role in providing the necessary platform for the future natural products chemistry investigation of these marine sponges from the sub- Antarctic Islands and the Southern Ocean.

Significance:

This study will contribute to understanding the biodiversity and geographic distributions of sponges in the Southern Ocean.
This multidisciplinary project has enabled the investigation of marine sponges for the presence of cytotoxic compounds.
Further investigation will lead to the isolation and identification of cytotoxic compounds present in the active sponge extracts.
Creecias de los docentes de matemática de secundaria de la provincia de Cartago sobre evaluación en matemática
Authors: García Paulo , Blanco Randall 
Published: November 2016

<p>El presente estudio se desarrolló con el objetivo de explorar las creencias que tienen los docentes de matemática de la provincia de Cartago acerca de la evaluación de los aprendizajes, con una muestra de 107 docentes que laboran en centros educativos de secundaria de esa provincia durante el curso lectivo 2013. </p><p>Para el estudio se diseñó un cuestionario en el cual se solicitó información general del docente y algunos datos sobre su formación académica, además de escalas tipo Likert para medir sus creencias en cuanto a los instrumentos de evaluación, características y usos de la evaluación. Los datos obtenidos se analizaron utilizando la prueba de esfericidad de Bartlett y se determinó el coeficiente KMO para luego realizar un análisis de conglomerados K-medias. </p><p>A partir de los datos obtenidos se lograron clasificar los docentes en cuatro grupos según las creencias manifestadas en el instrumento: los conformes con la práctica tradicional, los que más valoran la prueba escrita pero no los análisis de confiabilidad y validez, los más conformes con el sistema y más disconformes con el sistema.</p>
New Analogies Between Electromagnetic and Gravitational Fields Through the Bel-Robinson Tensor / Nuevas analogías entre los campos electromagnético y gravitacional a través del tensor de Bel-Robinson
Authors: Velasco Angel Jose Chacon 
Published: November 2016

AbstractBased on the 3+1 formalism for the formulation of an arbitrary reference frame and using the concept of electric and magnetic Weyl’s tensors, profound analogies between gravitational and electromagnetic field, its invariants, and specifically, among the energy-momentum field tensor in electromagnetic theory and Bel-Robinson’s (BR) or “super-energy” tensor in gravitation are established and discussed. In order to do that, original expressions for Weyl’s and BR’s tensors in terms of quasi-electric and quasi-magnetic fields were obtained. Furthermore, some theoretical consequences on the implications of the development of those analogies are outlined within the context of the yet to be directly proven experimental reality of gravitational waves. ResumenBasados en el formalism 3+1, con el cual es posible formular un sistema de referencia arbitrario en laTeoría General de la Relatividad TGR, establecemos profundas analogías entre los campos gravitacionaly electromagnético. Para lograrlo se obtuvieron nuevas expresiones para los invariantes gravitacionales y del tensor de Bel Robinson a través de los campos de los tensores cuasi-eléctricos y cuasi-magnéticos de Weyl en gravitación. Adicionalmente, son brevemente discutidas algunas implicaciones teóricas de estas analogías en el contexto de la aún no verificada realidad experimental de las ondas gravitacionales.
Morphological Characterization of Selenicereus megalanthus (K. Schum. ex Vaupel) Moran in the Province of Lengupá / Morphological Characterization of Selenicereus megalanthus (K. Schum. ex Vaupel) Moran in the Province of Lengupá
Authors: Morillo Coronado Ana Cruz 
Published: November 2016

AbstractThe yellow pitahaya, Selenicereus megalanthus (K. Schum. ex Vaupel) Moran, is considered an exotic fruit and is an essential product for the horticulture sector with significant demand mainly due to its flavor, appearance, quality, and nutrapharmaceutical properties. In addition, it has marketing potential, both domestically and internationally. Boyacá has pioneered the domestic production of pitahaya, which is why the present study aimed to identify the genetic variability that exists in the municipalities that produce it in the province of Lengupá with a morphological characterization of 25 materials using 27 descriptors, of which 18 were quantitative and 9 were qualitative, for the phylloclades and fruits. A principal components analysis was used to determine the principal morphological characteristics that allowed for differentiation of the materials: rib width (RW), height of the undulations between successive areolas in a rib (UH), fruit length (FL), fruit width (FWI), length of the longest apex bract (LAB), equatorial bract length (LEB), fruit weight (FW), peel weight (PW), pulp/peel ratio (PPR), soluble solids (SS), fruit shape (FS). The heirarchical cluster analysis resulted in four groups that corresponded to where the materials were collected. The genetic diversity of these materials was higher than that reported in other studies of the yellow pitahaya in this country, but it is necessay to create alternatives for increasing this diversity and effeciaently using it in conservation and breeding programs. ResumenLa pitahaya amarilla, Selenicereus megalanthus (K. Schum. ex Vaupel) Moran, es un frutal exótico, con un interesante potencial de mercado tanto a nivel nacional como internacional. El objetivo de este trabajo fue identificar la variabilidad genética existente en los municipios productores de la provincia de Lengupá, para lo cual se realizó la caracterización morfológica en 25 materiales genéticos, usando 27 descriptores de los cuales 18 eran caracteres cuantitativos y 9 cualitativos para filocladodios y frutos. El análisis de componentes principales determinó que los principales caracteres morfológicos discriminantes de variabilidad son: ancho de las costillas (ANC), altura de las ondulaciones entre aréolas sucesivas en una costilla (ALON), largo defruto (LFR), ancho del fruto (AFR9, longitud de la bráctea más larga del ápice (LBA), longitud de brácteas ecuatoriales (LBE), peso del fruto (PFR), peso de la cáscara (PCA), relación cáscara/pulpa RCP, sólidos solubles SS, forma del fruto (FFR). El análisis de conglomerados jerárquicos permitió la formación de cuatro grupos de acuerdo con el sitio donde fueron colectados los materiales genéticos. Existe diversidad genética en la pitahaya amarilla la cual debe ser utilizada en programas de mejoramiento genético
Análisis de propulsión iónica en condensadores asimétricos / Analysis of Ion Propulsion in Asymmetric Capacitors
Authors: Cubides Alfonso Fredy Yamith , Lancheros Quiroga David Leonardo , Chacón Cardona Cesar Alexander 
Published: November 2016

ResumenEn este artículo se presenta una nueva metodología para el estudio del comportamiento en condensadoresasimétricos del fenómeno de levitación electromagnética, sometido a altas tensiones (AC y DC).Se realizaron modelos experimentales para un análisis cinemático, simulaciones para observar el campo eléctrico y magnético, y por último se hicieron estudios de termografía de los condensadores asimétricos, con el ﬁn de realizar un análisis cuantitativo y cualitativo del fenómeno de levitación electromagnética, comparando el comportamiento que se presenta con cada tipo de señal (AC y DC). Como resultado el condensador asimétrico sometido a 30 kV en corriente directa, presentó una levitación Estable en comparación con la señal en corriente alterna. AbstractThis paper shows a new methodology for the study of the behaviour of asymmetrical capacitors subjected to high voltage (AC and DC).Experimental models for a kinematic analysis and simulations to observe the electric and magnetic field are shown. Additionally, in order to conduct a quantitative and qualitative analysis of the electromagnetic levitation phenomenon, thermography studies were performed by comparing the behaviours resulted from each signal type (AC and DC). The results showed the asymmetric capacitor connected to 30 kV in direct current presented a stable levitation in comparison with the AC current signal.
Predicción de la capacidad calorífica molal aparente y concentración micelar crítica (cmc) en soluciones acuosas de amonio cuaternario en función de temperatura (283.15 a 298.15) K. / Prediction of Molal Apparent Heat Capacity and Critical Micellar Concentration (cmc) of Aqueous Solutions of Quaternary Ammonium Salts at Temperature (283.15 to 298.15) K.
Authors: Amado Gonzalez Eliseo 
Published: November 2016

ResumenEl objetivo de la investigación es predecir la capacidad calorífica molal aparente () de las soluciones de líquidos iónicos de amonio cuaternario de Bu4NBr, sec-Bu4 NBr, iso-Bu4NBr, BuEt3NBr y Bu2Et2NBr mediante la ecuación de Pitzer modificada en función de temperatura (283.15 a 298.15) K en el rango de concentración (0.09 a 1.1) m. Se calculan las funciones para la capacidad calorífica mediante la metodología de superficie de respuesta. La concentración micelar crítica para las sales es calculada alrededor de (0.4 a 0.45) m a 298.15 K mediante el modelo de Desnoyers. Se encuentra que los números de agregación para la solvatación (n) varían entre 11 a 16 a 298. 15 K. Se proponen las relaciones estequiométricas de solvatación para cada sal. AbstractThe aim of the research is to predict the apparent heat capacity (Cfp) of aqueous solutions of quaternary ammonium liquid ionics of Bu4NBr, sec-Bu4NBr, iso-Bu4NBr, and Bu2Et2NBr BuEt3NBr by Pitzer equation modified depending on temperature (283.15 to 298.15) K at concentration range (0.09 to 1.1) m. The functions of the heat capacity are calculated by surface response methodology. The critical micelle concentration for salts was found around (0.4 to 0.45) 298.15 K m by Desnoyers model. The numbers of aggregation for solvation (n) ranging from 11-16 to 298. 15 K. The stoichiometric ratios of solvation for each salt are proposed.
Polêmica discursiva nas manifestações anti e pró governo Dilma Rousseff
Authors: Silva Edvania Gomes da , Silva Alessandra Souza 
Published: November 2016

Neste artigo, analisamosdiscursos materializados na mídia escrita acerca das manifestações anti e pró Governo Dilma Rousseff/PT/Lula, observando a existência de uma polêmica discursiva entre dois posicionamentos, ambos vinculados ao campo político. Trata-se, mais especificamente, de verificar o funcionamento das palavras impeachment e golpe, cujo efeito de sentido vai sendo construído de acordo com os lugares ideológicos de cada grupo. Na análise, recorremos aos pressupostos teóricos de Michel Pechêux, principalmente ao conceito de discurso,e à noção de polêmica discursiva, cunhada por Dominique Maingueneau, ambos autores vinculados à Escola Francesa de Análise de Discurso. Os resultados mostraramque a polêmica entre os anti e os pró Dilma/PT/Lula se fundamenta na forma como o campo político partidário se apropria de conceitos do campo filosófico, como o de bom senso, o de honestidade, e o de justiça.
Pengaruh Readiness dan Self-Confidence terhadap Penguasaan Geometri Transformasi Mahasiswa Pendidikan Matematika Universitas Muhammadiyah Purworejo
Authors: Astuti Erni Puji , Kurniasih Nila , Nugraheni Puji 
Published: November 2016

Penelitian kuantitatif ini bertujuan untuk mengetahui adanya pengaruh positif dan signifikan antara readiness, self-confidence, serta readiness dan self-confidence secara bersama-sama terhadap penguasaan mahasiswa pada mata kuliah Geometri Transformasi. Populasi penelitian adalah mahasiswa program studi pendidikan matematika yang mengambil mata kuliah Geometri Transformasi. Sampel diambil 25% dari populasi. Pengumpulan data menggunakan kuesioner untuk mengukur readiness dan self-confidence dan dokumentasi untuk memperoleh data penguasaan mahasiswa. Analisis data menggunakan analisis regresi dan analisis korelasi. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang positif dan signifikan antara readiness, self-confidence, serta readiness dan self-confidence secara bersama-sama terhadap penguasaan mahasiswa pada mata kuliah Geometri Transformasi
Cell salvage and revision metal on metal total hip replacements
Authors: Coventry Ruthra , Cranfield Karen , Ashcroft George Patrick 
Published: November 2016

SummaryMetal on metal hip implants can result in unsafe levels of metal ions (cobalt and chromium) both locally and systemically. Intraoperative cell salvage is becoming a standard of care in revisional hip surgery, however in these circumstances where metal on metal hip implants are present, it may not be safe to use.
Lower extremity bruising in an infant with coarctation of the aorta after nasal dexmedetomidine
Authors: Miller Jeff , Shaw Elizabeth 
Published: November 2016

SummaryA 4‐month‐old, 6.7kg, male with 22q11.2 microduplication, coarctation of the aorta, aortic arch hypoplasia, and bicuspid aortic valve underwent aortic arch advancement as a neonate. He presented for follow‐up transthoracic echocardiography under sedation. Following administration of 2.2 μg.kg‐1 nasal dexmedetomidine he became very fussy and both feet became hyperaemic and swollen in a “stocking” distribution. Bilateral residual bruising occurred. There were no long‐term sequelae.
A novel fault diagnosis approach of gearbox using an embedded sensor fixed gear body
Authors: Ning Shaohui , Han Zhennan , Wang Zhijian , Wu Xuefeng 
Published: November 2016

The vibration signals measured from the surface of a gearbox are complex, nonlinear and non-stationary. This paper presents a novel test approach for tooth root crack fault diagnosis of a spur gearbox using an embedded piezoelectric accelerometer. This enhances the ability to extract useful fault information and provide early fault detection in gear transmission systems. The proposed method uses two piezoelectric accelerometers embedded symmetrically on the gear body, which effectively shortens the transmission path of the vibration signals stimulated by a gear fault. The proposed approach is tested by analyzing experimental data from a healthy gear system and systems with cracked gear faults. In order to extract the weak fault information from the experimental data, minimum entropy deconvolution (MED) is first used to eliminate noise from the vibration signals, and then the cyclic autocorrelation function is used to extract the frequency components. The results suggest that the proposed approach can effectively detect 2 mm and 4 mm crack faults, while traditional methods can only detect 4 mm crack faults.
Legume Nodulating Bacterium, Achromobacter xylosoxidans Found in Tropical Shrub Agroecosystem, Sumatera, Indonesia
Authors: Wedhastri Sri , Fardhani Dinar Mindrati , Kabirun Siti , Widada Jaka , Widianto Donny , Evizal Rusdi , Prijambada Irfan Dwidya 
Published: November 2016

Legume nodulating bacteria (LNB), known also as rhizobia, are soil bacteria, which are able to form rootnodules and fi x nitrogen in the leguminous plants. The LNB availability in the soil depends on the type ofagroecosystem, where plant grows. In this study, we isolated LNB from the shrub agroecosystem in Sumatera,Indonesia, and obtained four selected bacterial strains. Among them, the isolate UGM48a formed root nodulein Macroptilium atropurpureum and showed highest number of nitrogenase activity. UGM48a also contains nifHand nodA genes. An analysis of the PCR-amplifi ed 16S rDNA and BLASTn analysis showed that UGM48adisplayed 96% similarity with Achromobacter xylosoxidans. In addition, UGM48a were successfully nodulatedGlycine max (L.) merr var. wilis. This is the fi rst report detecting A. xylosoxidans as nodule-forming species forGlycine max possesing the positive copy of nodA gene. Keywords : Legume Nodulating Bacteria, shrub agroecosystem, Achromobacter xylosoxidans, nodA, Glycine max
THE IMPLEMENTATION OF REMOTE SENSING AND GEOGRAPHICAL INFORMATION SYSTEM (GIS) IN RUBBER PLANTATION
Authors: Nugroho Priyo Adi 
Published: November 2016

Sistem informasi Geografis (SIG) merupakan suatu komponen yang terdiri dari perangkat keras, perangkat lunak, data geografi dan sumberdaya manusia yang bekerja bersama secara efektif untuk memasukan, menyimpan, memperbaiki, memperbaharui, mengelola, memanipulasi, mengintegrasikan, menganalisis dan menampilkan data dalam suatu informasi berbasis geografi. Teknologi SIG memungkinkan dukungan kegiatan bidang perkebunan karet secara efektif dan efisien. Terdapat beberapa keunggulan pada teknik penginderaan jauh antara lain (1) perekaman berulang, (2) faktual, dan (3) format berbentuk digital. Melihat penggunaannya di bidang lain yang cukup luas, maka pada bidang perkebunan karet berpeluang untuk diaplikasikan,antara lain untuk keperluan digitalisasi peta analog, penentuan luasan areal hiaten, penentuan tindakan kultur teknis pada berbagai kondisi topografi dan penapisan sebaran Penyakit Jamur Akar Putih (JAP) dan status hara daun.
JUVENILITAS SUMBER MATA OKULASI DAN PENGELOLAAN KEBUN ENTRES
Authors: Siagian Nurhawaty 
Published: November 2016

Target produktivitas tanaman karet nasional pada tahun 2025 adalah 1200-1500 kg karet kering/ha/tahun. Target tersebut hanya akan tercapai jika 85% dari total areal karet di Indonesia telah menggunakan klon unggul terbaru dengan kualitas bahan tanam (batang atas dan batang bawah yang prima). Beberapa hal yang perlu diperhatikan dalam pengelolaan kebun entres untuk memperoleh bahan tanam karet yang prima adalah: 1) kebun entres menggunakan bahan tanam okulasi yang batang bawahnya masih muda dan batang atasnya sesuai klon anjuran; 2) kebun entres dapat dipertahankan maksimal sampai umur 10 tahun, baru kemudian dilakukan peremajaan. Umur kebun entres yang paling ideal adalah ≤ 5 tahun; 3) pemangkasan terhadap kebun entres yang belum dimanfaatkan kayu okulasinya harus selalu dilakukan setiap tahun; 4) cabang entres yang baik digunakan sebagai sumber mata okulasi adalah cabang primer dan sekunder yang diambil dari kebun entres;5) pada okulasi batang bawah berumur 6-12 bulan, jenis mata okulasi yang dianjurkan adalah mata daun (mata prima); 6) pemurnian klon di kebun entres harus tetap dilakukan maksimal setiap 3 tahun dan 7) kebun entres dipelihara sesuai anjuran.