bluuebunny/crossref_metadata_2025 huggingface dataset:
Shakespeare, Kabbalah e a responsabilidade sobre o mistério das coisas
Authors: Ferreira Carlos Roberto Bueno , Levitan Claudio
Published: January 2017

É possível traçar um paralelo entre a técnica literária de Shakespeare e os ensinamentos do misticismo judaico conhecido como Kabbalah? Esse é o foco deste ensaio. A arte de Shakespeare permite interpretações em diversos níveis de profundidade. O homem retratado por Shakespeare é um ser atormentado e dividido entre a luta contra suas próprias paixões e a busca de um significado maior para sua existência, atrelada à reconexão com uma realidade superior. O presente trabalho tenta apontar os possíveis paralelos entre a tradição mística da Kabbalah e algumas obras da maturidade de Shakespeare, na esperança de extrair as semelhanças entre as peças do dramaturgo inglês e modo de interpretação dos textos sagrados conforme certos simbolismos da Kabbalah, relativos a uma jornada de purificação espiritual. Nesse sentido, buscamos apontar que o conteúdo místico é parte fundamental da obra shakespeariana. Contudo, não se trata de exoterismo leviano e desmedido, mas um trabalho criterioso que considera uma genuína responsabilidade sobre o mistério das coisas.
Precondicionamiento del método LDG para la ecuación vectorial de Helmholtz
Authors: Alvarado Arlin , Castillo Paul
Published: January 2017

Se presenta un estudio numérico de un precondicionador para la ecuación vectorial de Helmholtz; el cual se deriva de la técnica del Laplaciano desplazado. Se utiliza una nueva versión del método “Local Discontinuous Galerkin” (LDG) como técnica de discretización espacial. Se valida la escalabilidad del precondicionador mediante una serie de experimentos numéricos en dominios poliédricos y aproximaciones de alto orden en problemas de bajas frecuencias en el caso real.
Characteristics of GaN/Si(111) Epitaxy Grown using Al0.1Ga0.9N/AlN Composite Nucleation Layers having Different Thicknesses of AlN
Authors: Jang Seong-Hwan , Lee Seung-Jae , Seo In-Seok , Ahn Haeng-Keun , Lee Oh-Yeon , Leem Jae-Young , Lee Cheul-Ro
Published: January 2017

We have studied the effects of Al0.1Ga0.9N(150 nm)/AlN Composite Nucleation Layers (CNLs) having different thicknesses of AlN ranging from 20 to 41 nm on the growth characteristics of GaN/Si(111) epitaxy. The surface morphologies of the GaN epitaxial layers which were grown on Al0.1Ga0.9N(150nm)/AlN CNLs showed that the number of thermal etch pits and cracks was abruptly decreased with the increase of AlN thickness from 20 to 35 nm. However, the morphology of GaN epitaxy which was grown on Al0.1Ga0.9N(150 nm)/AlN CNL having AlN of 41 nm thick above 35 nm showed that the number of them was increased again. So, the GaN/Si(111) epitaxy which was grown using Al0.1Ga0.9N(150 nm)/AlN(35 nm) CNL showed the highest crystallinity having the FWHM of 1157 arcsec for the (0002) diffraction. Photoluminescence spectrum at room temperature for GaN/Si(111) epitaxy grown using Al0.1Ga0.9N(150 nm)/AlN(35 nm) CNL showed a sharp band edge emission at 364 nm, which especially doesn't have yellow luminescence related to various defects such as vacancy and dislocation. Meanwhile, the spectra at room temperature for the others showed yellow luminescence at around 580 nm except each band edge emission. Moreover, the FWHM of main exitonic peak at 10 K for the GaN/Si(111) epitaxy which was grown using Al0.1Ga0.9N(150 nm)/AlN(35 nm) CNL is the lowest value of 12.81 meV among them. It is obvious that the Al0.1Ga0.9N(150 nm)/AlN CNL having suitable thickness of AlN plays an important role in improving the crystallinity and optical properties of GaN/Si(111) heteroepitaxy without any defects such as pits and cracks over the surface by reducing the mismatch of thermal expansion coefficient and lattice constant between GaN and Si(111) comparing with AlxGa1-xN or AlN nucleation layer alone.
Preparation and Characterization of Cobalt Doped ZnO and TiO2
Authors: Yang Shaoguang , Hung Silas T. , Sung Herman H.Y. , Pakhomov A.B. , Wong C.Y.
Published: January 2017

Synthesis and characterization of transparent Co-doped ZnO and TiO2 diluted magnetic semiconductor (DMS) films are described. The films are prepared by single sputtering deposition. They are ferromagnetic at temperatures as high as 350 K. The films were characterized by X-ray diffraction (XRD), X-ray photoemission spectroscopy (XPS), X-ray fluorescence (XRF). Optical transparency was measured on UV/VIS spectrometer. The Codoped ZnO films had wurtzite structure similar to ZnO with the (002) preferential texture. Neither XRD nor XPS showed any presence of pure Co or CoO in the samples. The Co-doped TiO2 samples were amorphous, and some unoxidized Co was found in the films.
Materials issues in the layers required for integrated magneto-optical isolators
Authors: Cruz-Rivera Luis J. , Sung Sang-Yeob , Cassada Jessie , Marrero-Cruz Mariza R. , Stadler Bethanie J H
Published: January 2017

The development of integrated optical isolators is critical to the functional integration of optical devices and systems. This work will primarily elucidate a methodology to grow, by a semiconductor compatible process, the critical active material in monolithically integrated magneto-optical isolators; yttrium iron garnet (YIG: Y3Fe5O12). Reactive radio frequency (RF) sputtering was used to grow YIG on MgO, which is a promising buffer layer material for optical devices. The chemical, structural, optical, magneto-optical and magnetic properties of the resulting films have been studied by various techniques including energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Faraday rotation measurements and vibrating sample magnetometry (VSM). Low forward powers (lower limit of 12.3 W/cm2) grew YIG nuclei in an amorphous matrix and the number of these nuclei increased with increasing forward power. At powers exceeding 19W/cm2 film cracking occurred. The films with YIG had strong in-plane magnetizations with small coercive fields. Optical cladding layers compatible with YIG films have been grown through plasma enhanced chemical vapor deposition (PECVD) and thin film permanent magnets for biasing have been grown and optimized.
Large-area porous alumina photonic crystals via imprint method
Authors: Choi J. , Schilling J. , Nielsch K. , Hillebrand R. , Reiche M. , Wehrspohn R. B. , Gösele U.
Published: January 2017

A perfect 2D porous alumina photonic crystal with 500 nm interpore distance was fabricated on an area of 4 cm2 via imprint methods and subsequent electrochemical anodization. A 4” imprint stamp consisting of a convex pyramid array was obtained by modern VLSI processing using DUV-lithography, anisotropic etching, LPCVD Si3N4 deposition and wafer bonding. The optical properties of the porous alumina photonic crystal were measured with an infrared microscope in Г-M direction. For both polarizations, a bandgap is observed at around 1 μm for r/a = 0.42. A reflectivity of almost unity for E-polarization in the region of the bandgap is a sign of the high quality of the structure, indicating almost no scattering losses. These experimental results could be correlated very well to the bandstructure as well as reflectivity calculations assuming a dielectric constant of å = 2.0 for the anodized alumina.
Photonic Crystal Properties of SiON (n=1.56)
Authors: Aarts Igor M.P. , Heijden Rob W. v.d. , Salemink Huub W.M.
Published: January 2017

We report for the first time the use of the relatively low index material SiON (n=1.56) for photonic crystal applications. With this system it is possible to enlarge the complete TE-band gap of a 2D-photonic crystal by properly designing the unit cell filling. This may be practically realised because of the larger dimensions of photonic crystals in low index materials, which allows less stringent etch conditions when compared to traditional InP based materials. The optimal distribution of the refractive index is found by placing the displacement field in high or in low dielectric material. The structure is defined by two figures of merit, the width of the band gap and the smallest feature size, which is the key factor in etching the structure. In addition, we suggest the use of a graded-index profile to reduce out of plane scattering. This graded index profile can be realised by controlling the nitrogen flow during deposition of the SiON layer.
KONSENTRASI ION BESI DAN ION SULFAT PADA AIR BUDIDAYA UDANG DI TAMBAK TANAH SULFAT MASAM
Authors: Sutrisyani Sutrisyani , Rohani Sitti , Kurniah Kurniah
Published: January 2017

Abstrak bisa dilihat di Lampiran
DAMPAK BLOOMING ORGANISME PENYEBAB RED TIDE Noctiluca scintillans TERHADAP KEGIATAN USAHA BUDIDAYA IKAN KERAPU DI KERAMBA JARING APUNG (KJA)
Authors: Muawanah Muawanah , Triana Atri , Sari Nira , Haryono Tri
Published: January 2017

Abstrak bisa dilihat di Lampiran
Automatische Geburtsüberwachung bei primi- und pluriparen Rindern einer Kreuzungsherde aus Holstein Friesian und Fleckvieh
Authors: Dippon Matthias , Petzl Wolfram , Lange Dorothee , Zerbe Holm
Published: January 2017

Gegenstand und Ziel: Hohe Kälberverluste im perinatalen Zeitraum sind nach wie vor ein ethisches und wirtschaftliches Problem in Milchviehbetrieben. Die Verbesserung des Geburtsmanagements durch eine frequente Geburtsüberwachung kann hierbei die Überlebensraten der Kälber nachhaltig erhöhen. Ziel der Studie war, in einer Kreuzungsherde den Einfluss des Rasseanteils und der Parität auf Praktikabilität und Zuverlässigkeit eines neu entwickelten Geburtsüberwachungssystems zu evaluieren. Material und Methoden: Das Geburtsüberwachungssystem wurde bei 23 primiparen und 31 multiparen Kühen einer Kreuzungsherde aus Holstein Friesian (HF) und Fleckvieh (FV) 7 Tage vor dem errechneten Geburtstermin eingesetzt. Nach dem dritten Fehlalarm wurde der Versuch abgebrochen und als falsch positiv (FP) bewertet. Die Abhängigkeit der Versuchsabbrüche vom genetischen Anteil der Rasse HF wurde mittels Mann-Whitney-U-Test statistisch berechnet. Ergebnisse: Bei Tieren mit überwiegendem HF-Anteil (> 66%) konnte der Geburtsmelder in allen Fällen erfolgreich angewendet werden. Überwog der FV-Anteil (> 66%), kam es zu Fehlalarmen durch Senderverlust, was zu zahlreichen Versuchsabbrüchen (FP) führte (31,6%). Multipare Kühe verloren den intravaginalen Sender häufiger als primipare Kühe (29,0% vs. 8,7%). Bei 72,2% der hochtragenden Kühe mit einem Geburtsmelder trat eitriger Scheidenausfluss auf. Schlussfolgerung und klinische Relevanz: Das automatische Geburtsüberwachungssystem lässt sich bei HF-Kühen zuverlässig einsetzen. Aufgrund der hohen Anzahl an Senderverlusten kann sein Einsatz derzeit nicht bei Tieren empfohlen werden, deren genetischer FV-Anteil 66% übersteigt. Zukünftige Entwicklungen automatischer Geburtsmelder sollten unter Berücksichtigung des Rasseeinflusses erfolgen.
The study of the curing of the polyurethane coating by method of IR spectroscopy
Authors: Korshunova N. A. , Tukhvatullina R. F. , El'tsov O. S.
Published: January 2017

The results of the study of the curing process of polyurethane compositions with participation of two different catalysts by the method of IR spectroscopy are given. The time dependences of curing of polyurethane coatings from concentrations of catalysts were determined, on the basis of which the most effective catalyst was selected.
Biomimetics and its tools
Authors: Wanieck Kristina , Fayemi Pierre-Emmanuel , Maranzana Nicolas , Zollfrank Cordt , Jacobs Shoshanah
Published: January 2017

Biomimetics, as the transfer of strategies from biology to technology, is an emerging research area and has led to significant concepts over the past decades. The development of such concepts is described by the process of biomimetics, encompassing several steps. In Practice, beneficiaries of the process face challenges. Therefore, to overcome challenges and to facilitate the steps, tools have been developed in various areas, such as engineering, computing and design. However, these tools are not widely used yet. This paper presents an overview and a classification study of more than 40 tools with qualitative criteria. The criteria included, for example, the year of development, the accessibility of tools, the facilitated steps of the process or their contribution to sustainability. The classification shows that certain steps of the process and their challenges are well addressed by the tools, while other steps are not. The presented results contribute to the proposal of an improvement of the state of the art, and they build the foundation for future theoretical and practical analyses. These findings could contribute to increasing the implementation of biomimetics in various disciplines in the long term.
Ficus racemosaas corrosion inhibitor for mild steel in acid medium
Authors: Bagga Manpreet Kaur , Gadi Ranu , Singh Gurmeet
Published: January 2017

Corrosion inhibitors significantly retard the rate of attack of a corrosive medium on a metal or an alloy when they are added in small concentrations. Their effect on human health and the environment is a very important criterion to be considered when dealing with corrosion inhibitors. Plants are non-toxic, environment-friendly and rich reserves of naturally occurring organic compounds which can aid the corrosion inhibition process. The inhibition effect of Ficus racemosa (FR) leaf extract on the corrosion of mild steel in 0·5 M sulfuric acid solution was investigated by potentiodynamic polarisation and electrochemical impedance spectroscopy. The inhibition efficiency increases with an increase in the concentration of the FR leaf extract, attaining the maximum value at the highest inhibitor concentration of 2500 parts per million. The effect of temperature on the corrosion behaviour of mild steel in 0·5 M sulfuric acid with and without addition of leaf extract was studied in the temperature range of 298–328 K. A decrease in inhibition efficiency was observed with the rise in temperature. Potentiodynamic polarisation data revealed a mixed mode of inhibition. The adsorption process was found to be consistent with Langmuir adsorption isotherm.
Estudio de las dioscóreas mexicanas I. Dioscorea spiculiflora Hemsl.
Authors: Cox Don K. , Hernández-Corzo Antonio , Matuda Eizi , González-Durán José G.
Published: January 2017

Se presenta una revisión sistemática y amplificación de la descripción de la D. spiculiflora Hemsl. 2. Se da un resumen de trabajos cromosómicos efectuados con especies de las Dioseoreas mexicanas. 3. Se anota la distribución de la D. spiculiflora en México, particularmente en Chiapas. 4. Se fija el ambiente y fitosociología de la especie. 5. Se resumen la ecología específica de la Dioscorea spiculiflora Hemsley.
Las compuestas del Valle Central de México
Authors: Paray Ladislao
Published: January 2017

Descripción florística de especies
Acción antimicrobiana de algunos antibióticos extraídos de hongos superiores
Authors: Pérez-Silva Angelina
Published: January 2017

El conocimiento de substancias antagónicas producidas por organismos no data precisamente del reciente descubrimiento de la penicilina, la estreptomicina y otras, sino que se remonta al siglo XIX. En el año de 1876 Tyndal, conocido como notable físico, describe en su Optical reportment of the atmosphere in relation to the phenomena of putrefaction and infection una acción antagónica de una especie de Penicilium hacia el crecimiento de bacterias y atribuye esta acción una interferencia por el oxígeno.
Contribución al conocimiento de la vegetación del suroeste del estado de Zacatecas (República Mexicana)
Authors: Guzmán-H. Gastón , Vela-Gálvez Luciano
Published: January 2017

Se presentan los resultados botánicos de la exploración que efectuaron los autores, en colaboración con los señores Pedro Reyes Castillo, Antonio Guzmán del Proo y Urbano Cabrera Pech, en la región suroeste del Estado de Zacatecas, en el mes de septiembre de 1959. Al resumir las observaciones efectuadas, así como la identificación del material colectado, se describen cinco tipos dominantes de vegetación, a saber: 1) pradera y matorral áridos; 2 ) bosque pino-encino; 3) matorral subtropical; 4) bosque tropical deciduo y 5) encinal de transición. Se analizan someramente, desde el punto de vista geográfico y florístico, los cinco tipos de vegetación y se propone un mapa de la delimitación de las zonas vegetales. Se anexa además una lista de las plantas silvestres útiles más importantes, colectadas por los autores, anotando la sinonimia vulgar y científica.
Informe sobre la vegetación actual de un sitio arqueológico de la civilización Chalchihuites y de sus alrededores, vecino a la ciudad de Durango, República Mexicana
Authors: Hendricks Albert J.
Published: January 2017

En el verano de 1958, se estudió la vegetación de dos colinas, de sus alrededores y de la depresión que las conecta, que forman el sitio de una concentración de viviendas antiguas relativamente grandes de una civilización extinguida pre-hispánica, en la periferia Norte del complejo Mesoamericano del centro de México. Los arqueólogos del Museo de la Universidad del Sur de Illinois (S.I.U.) han estado investigando esta civilización, Chalchihuites, durante casi una década. El objeto de este estudio de las plantas proporcionó a los arqueólogos información suplementaria concerniente a la identificación de plantas y comunidades vegetales existentes en este lugar (Sitio Schroeder) y en el terreno circundante.
Vegetación de una corriente de lava de formación reciente, localizada en el declive meridional de la sierra de Chichinautzin
Authors: Espinosa-Garduño Judith
Published: January 2017

El pedregal que tratamos se localiza en el declive meridional de la Sierra de Chichinautzin, y constituye una manifestación más de la actividad volcánica que ha originado la Serie Basáltica Chichinautzin. Se encuentra circundada por corrientes de lava de mayor antigüedad, que muestran un estado muy avanzado de transformación, a partir de la roca ígnea original, y en ellas encontramos ya una asociación clímax de encinar con madroño. Al comparar el pedregal estudiado con otros pedregales, vemos que hay cierta relación florística entre la parte más baja del primero y la antigua corriente de lava localizada entre Cuernavaca y Tepoztlán. Con respecto al Jorullo y al Paricutín, la actividad volcánica de éstos es bastante reciente al grado de que en el último, apenas se inicia la invasión de plantas vasculares.
Notas sobre la familia Loranthaceae y el parasitismo secundario
Authors: Riba Ramón
Published: January 2017

La in vasión de Psittacanthus calyculatns (D. C.) Don., Phoradendron purpusi Trel. y Strulanthus densiflorus por las tres especies de lorantáceas mencionadas al respecto, nos hacen ver que aunque existe cierta selectividad hacia el hospedero, la presentan grupos muy reducidos, p. e. los grupos Pauciflorae y Amplectentes del género Phoradendron, que invaden coníferas y lorantáceas respectivamente, a unque en el primero de ellos esta selectividad aparente, acaso se deba a la abundancia de coníferas en los lugares de colecta, en relación con la escasez de otras especies arbóreas en los bosques de ese tipo.
A preliminary ecological study of the Alpine flora of Popocatepetl and Iztaccihuatl
Authors: Beaman John H.
Published: January 2017

At every 100-meter level between 3,700 and 4,300 meters on Popocatepetl and lztaccihuatl, five meter-square quadrats were used for determining species presence and frequency. From the resulting data several observations about the alpine flora were made. With an in crease in altitude, there was a reduction in number of species and number of individual plants present. The quadrant data clarified species distrihution patterns and showed that most species have a restricted altitudinal rango. Only two species extended from the 3,700-meter level to the 4,300-meter level. With the data obtained, it was possible to evaluate the relative importance of each of the species. Only a few species were extremely important, and a large number of species had little importance. Adjacent stands and stands at equal altitudes were compared by the community coefficient method. No two stands had the same species structure, but adjacent stands usually had a community coefficient of at least 44 percent. Stands in Pinus hartwegii forest, however, were distinctly different from those in meadows, as indicated by the low community coefficients when the two were compared. Four major phases of the alpine meadows were designated and briefly characterized. Although these phases did not have sharp boundaries, they usually could be readily recognized in the field.
La vegetación de México
Authors: Gómez-Pompa Arturo
Published: January 2017

El estado actual de los estudios mas importantes sobre la vegetación de México se presenta en forma sintética. Se utilizó como base para la clasificación de los tipos de vegetación el trabajo de Miranda y Hernández. Los principales tipos de vegetación en México y sus asociaciones características se mencionan. El trabajo se dividió en tres partes principales: a) Vegetación en zonas con clima templado o frío. b) Vegetación en zonas con clima árido o subárido. c) Vegetación en zonas con clima cálido. Algunos problemas relativos a los estudios de la vegetación en México son expresados de forma crítica.
Notas necrológicas: Maximino Martínez / Faustino Miranda
Authors: Miranda-Colín Salvador
Published: January 2017

Obituario
Fundación de la "Comisión Pro Flora Neotrópica"
Authors: CPFN -
Published: January 2017

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Faustino Miranda (1905-1964)
Authors: Gómez-Pompa Arturo
Published: January 2017

Homenaje postumo al Dr. Faustino Miranda (1905-1964)
El proyecto Index nominum genericorum
Authors: Langman Ida K. , Southwell Mary F.F.
Published: January 2017

Noticias sobre el proyecto Index nominum genericum
Literatura para las briofitas de México
Authors: Delgadillo-M. Claudio
Published: January 2017

Listado bibliográfico especializado
El itinerario y las colectas de Sesse y Mociño en México
Authors: McVaugh Rogers
Published: January 2017

Descrición
La confusión de tipificación y de nomenclatura de dos especies americanas del género Sesbania (Leguminosae): S. cavanillesii y S. drumondii
Authors: Bunting G. S. , Ingram John
Published: January 2017

1. Aeschinomene longifolia Cavanilles y Aeschynomene longifolia Gómez Ortega son sinónimos de una especie indígena de Jalisco que al presente se incluye en el género Sesbania y se denomina Sesbania cavanillesii S.Watson.2. El tipo de Aeschinomene longifolia Cav. ( =Sesbania cavanillesii) es el ejemplar Cavanilles s.n., 1795, conservado en el herbario del Instituto "Antonio José Cavanilles" en Madrid.3. Sesbania drummondii (Rydberg) Cory es una especie indígena de la llanura costera del Golfo de México; es una especie distinta de Sesbania cavanillesii.4. Daubentonia drummondii Rydb. (= S. drummondii ) queda tipificada en la colección de Drummond de Texas, anteriormente identificada con duda por Torrey y Gray como "Daubentonia longifolia.? DC".5. Todos los autores que publicaron nombres equivalentes para la especie de la llanura costera del Golfo parecen haber cometido el error de tipificar sus nombres por referencia directa a "Cav. ic. 4. p. 8. t. 315" u "Ort. dec. 9. p. 70", excepción hecha de Rydberg y Pierce.6. Pierce describió la especie de la llanura costera del Golfo como Daubentonia texana el cual se rechaza por ser un nombre superfluo.
Comentarios al tema: Orígenes, desarrollo histórico y estado actual de los herbarios en el mundo
Authors: Dorantes-López Jesús
Published: January 2017

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Herbarios, genética y fitomejoramiento
Authors: Hernández-X. Efraím
Published: January 2017

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Lycium isthmense (Solanaceae), nueva especie del Itsmo de Tehuantepec
Authors: Chiang-C. Fernando
Published: January 2017

Descripción de especie nueva
Literatura adicional para las briofitas de México
Authors: Delgadillo-M. Claudio
Published: January 2017

Nuevas publicaciones sobre el tema
The genus Machaerium (Leguminosae) in Mexico
Authors: Rudd Velva E.
Published: January 2017

Machaerium is a neotropical genus of the legume family that occurs from Mexico to Peru and Argentina, with a species in the Antilles and West Africa. Of an approximate total of 125-130 species, 14 are known from Mexico. Descriptions, geographic distribution maps in Mexico, a chart with phenological data, and a key for the identification of these 14 species are presented in this paper.
Biología de poblaciones silvestres y cultivadas de Phaseolus coccineus L: I. Relaciones planta-polinizador
Authors: Burquez Alberto , Sarukhán-K. José
Published: January 2017

Se estudia la biología floral de poblaciones silvestres y cultivadas de Phaseolus coccineus L. situadas a lo largo de un gradiente altitudinal (2,200-3,000 msnm.) que comprende variadas condiciones medioambientales, encontrándose que en las poblaciones de elevada altitud (3000 msnm), los colibríes juegan un papel determinante en la polinización de esta especie, tradicionalmente considerada como una especie melitófila típica, mientras que en condiciones de baja elevación las poblaciones se ajustan muy bien a este esquema, siendo los abejorros del género Bombus los principales polinizadores, aún cuando los colibríes parecen desempeñar un importante papel en el flujo genético entre los cultivares y las poblaciones silvestres de baja altitud. Se establecen diferencias marcadas entre poblaciones de elevada y baja altitud con base en criterios de carácter fenológico, energético, de sistemas reproductivos, de coloración y de fauna polinizadora, postulandose barreras al flujo genético entre las poblaciones de baja y elevada altitud, además de que en estas últimas el grado de cruzamiento parece ser muy alto.
Los congresos mexicanos de botánica de 1960 a 1978
Authors: Guevara Sergio , Moreno-Casasola Patricia
Published: January 2017

Se realizó un análisis del contenido de los Congresos Mexicanos de Botánica del I al VII. Se relacionó la cantidad de trabajos. por sesión y el número de autores con el desarrollo de las áreas de investigaciones correspondientes. Se comparó la actividad botánica en centros de docencia e investgiación y en instituciones del centro e interior del país. Se anotan recomendaciones para el futuro desarrollo del congreso y sus implicaciones en la comunidad botánica del país.
Región América Latina: procesos regionales entre la dependencia y la autonomía
Authors: Vaca Hernández Wendy
Published: January 2017

El espacio denominado América Latina tiene una historia particular marcada por siglos de colonialismo y colonialidad. Este último concepto implica que la estructura básica del sistema colonial no ha variado a pesar de haberse alcanzado una independencia formal. Por esta razón, el subcontinente ha fluctuado entre la dependencia y la búsqueda de autonomía. Estos ciclos sucesivos se han manifestado tanto en las configuraciones internas como en los esquemas regionales en que se ha emprendido. En este documento, se analiza la construcción y evolución de la idea de una región: América Latina y el Caribe. Para ello, se examinan los conceptos de región, regionalismo, qué implica la expresión América Latina y el Caribe, y cuáles son las transformaciones en estas ideas que han surgido a partir de las configuraciones regionales de la Unión de Naciones Suramericanas (UNASUR) y la Comunidad de Estados Latinoamericanos y Caribeños (CELAC) en tanto organismos plurales con amplios objetivos.
Bajo la sombra del guamúchil. Historias de vida de mujeres indígenas y campesinas en prisión de Rosalva Aída Hernández Castillo
Authors: Fregoso Anayanci
Published: January 2017

Reseña de Bajo la sombra del guamúchil. Historias de vida de mujeres indígenas y campesinas en prisión.
Incidencia de la seguridad comunitaria y el capital social en barrios urbanos de San José, Costa Rica
Authors: Moreira Julio Solís
Published: January 2017

Este artículo se deriva de los resultados de una investigación sobre el enfoque de seguridad comunitaria en Costa Rica y su incidencia en entornos barriales urbanos. Se busca evidenciar las relaciones existentes entre la doctrina subyacente en la prevención del delito y su incidencia en el capital social de espacios barriales urbanos, todo enmarcado en un contexto de adaptación de las políticas de seguridad, con la intención de mejorar la confianza con la ciudadanía y las comunidades. Así pues, se aborda la seguridad comunitaria a modo de sistema de acción en relación con las dinámicas de capital social que se dan en estos espacios urbanos. Se busca interrogar y evidenciar la lógica de los cursos de acción y las prácticas de prevención del delito, en la condición de que la seguridad comunitaria es una política criminal de corte preventivo que se sustenta en la necesidad de crear un control social informal y fortalecer un capital social por medio de la responsabilización de los individuos en los problemas de seguridad en la ciudad.
Topología del miedo: impactos en la percepción espacial de la seguridad en América Latina
Authors: Valenzuela-Aguilera Alfonso
Published: January 2017

Los dramáticos incrementos en los índices delictivos y en la percepción de la inseguridad en México han impulsado el interés en decodificar la relación entre el miedo y el entorno urbano. El presente trabajo examina diferentes perspectivas epistemológicas para entender con mayor profundidad el fenómeno del miedo a la delincuencia. Con un especial énfasis en aquellas perspectivas que van más allá de los modelos racionalistas, exploramos cuestiones de representación, discursos, escalas y contextos, con la intención de explorar las narrativas locales, las representaciones culturales y los diferentes niveles de significado simbólico que contribuyen en la construcción espacial del miedo.
Acoso sexual en lugares públicos de Quito: retos para una “ciudad segura”
Authors: Morales Alfonso Liudmila , Quiroz del Pozo Nathalia , Ramírez Graciela
Published: January 2017

Las reflexiones sobre ciudad, mujeres y seguridad plantean retos para la academia, el diseño y la implementación de políticas públicas. Prevenir y atender las manifestaciones de la violencia, tan variadas como las propias relaciones de poder que encarnan, ha probado ser una tarea ardua y desafiante. El artículo analiza cómo los aspectos subjetivos del acoso sexual plantean retos para la integralidad de las políticas públicas que garantizan la seguridad de las mujeres y el ejercicio de sus derechos en la esfera pública. Se basa en las experiencias de acoso de tres mujeres, durante su tránsito por el espacio público, en Quito, una de las cinco ciudades escogidas para la iniciativa piloto de ONU Mujeres “Ciudades Seguras y Espacios Públicos Seguros”. Examina el papel de dichos aspectos subjetivos en la interacción del Protocolo de actuación en casos de violencia sexual en el sistema integrado de transporte de pasajeros de Quito y la legislación nacional, con énfasis en el Código Orgánico Integral Penal. Interacciones que plantean debates sobre las responsabilidades nacionales y locales en la política pública, el rol del Estado ante la violencia de género y el valor simbólico de delitos y contravenciones, para un entendimiento integral del problema.
Treatment of pediatric patients with lower extremity deformities using software-assisted Ortho-SUV Frame: analysis of 213 cases
Authors: Vilensky Viktor A. , Pozdeev Andrey A. , Zubairov Timur F. , Zakharyan Ekaterina A. , Pozdeev Aleksander P.
Published: January 2017

Aim. To retrospectively assess treatment outcomes of long bone deformities of the lower extremities accompanied by shortening in pediatric patients using a software-assisted Ortho-SUV Frame.Materials and methods. The accuracy of deformity correction (AC), period of deformity correction (PDC), external fixation index (EFI), and number of complications in 213 patients were retrospectively analyzed.Results. According to different parameters, AC of femur deformity correction (group 1) varied from 90% to 96%. The average length increase was 47 ± 12 mm. The average distraction duration was 38 ± 14 days. The average PDC was 8 ± 6 days for simple deformities (SDs), 14 ± 7 days for moderate deformities (MDs), and 23 ± 12 days for complex deformities (CDs). EFI was 26 ± 8 days/cm for SDs, 31 ± 6 days/cm for MDs, and 35 ± 12 days/cm for CDs. According to different parameters, AC of the lower leg deformity correction (group 2) varied from 89% to 95%. The average length increase was 52 ± 20 mm. The average distraction duration was 45 ± 18 days. PDC was 11 ± 5 days for SDs, 16 ± 9 days for MDs, and 27 ± 16 days for CDs. EFI was 32 ± 14 days/cm for SDs, 42 ± 12 days/cm for MDs, and 49 ± 8 days/cm for CDs. There were 48 (50.5%) complications in group I with the majority (71%) classified as Caton grade I and 29% as grade II. There were 62 (45%) complications in group 2, where 50% were Caton grade I and 50% were Caton grade II. There were no serious complications (Caton grade III) in either group that influenced the final functional results.Conclusion: Use of a software-assisted Ortho-SUV Frame increased the efficiency of treatment of pediatric patients with long bone deformities because of the great accuracy of deformity correction.
Clinical implications of the neurosegmental level of injury in the treatment of hip dislocation and subluxation in children with spina bifida
Authors: Baindurashvili Alexei G. , Ivanov Stanislav V. , Kenis Vladimir M.
Published: January 2017

Background. Hip dislocation and subluxation are common in children with spina bifida.Aim. To determine the influence of the neurosegmental level on surgical treatment of hip dislocation and subluxation in children with spina bifida.Materials and methods. A total of 114 pediatric patients with spina bifida and hip dislocation and subluxation were treated at The Turner Scientific and Research Institute for Children’s Orthopedics (Saint Petersburg, Russia) from 2006 to 2015. The patients were divided into two groups according the Sharrard classification of neurosegmental lesions: a study group of 62 patients who underwent hip stabilization surgery and a control group of 52 patients who did not undergo hip stabilization procedures.Results. For patients with a high neurosegmental level (thoracic and L1-L2), surgical treatment for hip dislocation and subluxation, which included most cases (72%), led to motor deterioration (retrospective study). Of 40 patients with a neurosegmental level of L3-L4 and L5-S1, motor level improved in 13 (32.5%) but deteriorated in 10 (36%) of 28 patients in the control group.Conclusion. Determination of the neurosegmental level enables the prediction of motor level and reveals indication for surgical treatment.
Near-unisons in Afro-Cuban Ensemble Drumming
Authors: Benadon Fernando
Published: January 2017

Working with an original corpus of Afro-Cuban drumming recordings shared by Andrew McGraw, I examine the nature and extent of non-simultaneous attacks between ensemble players. Quantitative analyses of ~30,000 drum onset times in four- and five-player performances reveal that these non-simultaneities, or near-unisons, are widespread and often sizeable. Their frequency and magnitude depend on selection style, measurement method used, location of the analysis window within the bar cycle, and instruments involved. I show that near-unisons result (in part) from the layering of 'idiosyncratically' timed ostinatos, and that the effect can be achieved by layering not only different timing contours but also equivalent contours that are slightly displaced with respect to each other. I also show that near-unison configurations can be either consistent or variable, so that certain leader-follower associations remain stable from cycle to cycle while others vary more freely. Beyond pairwise associations, I explore rhythmic density via the notion of onset clusters: groups of closely spaced attacks produced by up to five different players.
MCFlow: A Digital Corpus of Rap Transcriptions
Authors: Condit-Schultz Nathaniel
Published: January 2017

This paper describes a new digital corpus of rap transcriptions known as the Musical Corpus of Flow (MCFlow). MCFlow currently contains transcriptions of verses from 124 popular rap songs, performed by 86 different rappers, containing a total of 374 verses, and consisting of 5,803 measures of music. MCFlow transcriptions contain rhythmic information, encoded in musical durations, as well as prosodic information, syntactic information, and phonetic information, including the identification of rhymes. In the second part of the paper, preliminary analyses of the corpus are presented, describing the "norms" of several important features of rap deliveries. These features include speed, rhyme density, metric position of stressed syllables, metric position of rhymes, phrase length, and the metric position of phrases. Several historical trends are identified, including an increase in rhyme density and phrase variability between 1980 and 2000. In each analysis, variance between different performers is compared to variance between songs. It is found that there is generally more variability between songs than between performers.
Two Corpus-Based Approaches to Rap Flow
Authors: Gran Jacob J
Published: January 2017

This commentary compares and contrasts the two articles within this issue that describe a corpus-based approach to rap music (Condit-Schultz, 2016; Ohriner 2016). Beyond their technical differences, these studies mutually converge on the concept of "flow" as a window into the technical problems of analyzing rap music, and the results of the two studies complement one another. The comparison of these essays allows a unique insight into the methodological alternatives available within corpus-based research. I also attempt to briefly contextualize these essays within the history of the field, and to outline what I believe their significance to be as contributions to the musicology of rap music.
Suggestions for Future Corpus-Based Text Painting Analyses: A Response to Strykowski
Authors: Sapp Craig
Published: January 2017

This commentary provides multiple suggestions for future research on text painting that have been inspired by Strykowski's (2016) quantitative analysis of height-related musical imagery. For example, musical features such as meter, harmony, and position may be incorporated to expand the scope of the research. The commentary concludes by referencing two additional corpora that may further benefit the quantitative study of text painting, namely, repertories that contain a dearth of word-painting, and an upcoming digital repository of Tasso-based madrigals.
The War of the Romantics: An Alternate Hypothesis Using nPVI for the Quantitative Anthropology of Music
Authors: VanHandel Leigh
Published: January 2017

This response offers an alternate interpretation for the data described in Joseph Daniele's 2016 article "A tool for the quantitative anthropology of music: Use of the nPVI equation to analyze rhythmic variability within long-term historical patterns in music." I examine Daniele's argument that there is an overall rising trend in rhythmic variability in German composition from 1600-1950, and offer an alternate, historically informed explanation based on the re-examination of the data. The rising trend does not appear to be consistent throughout time, and rather than being the result of the waning influence of Italian music on German music, I suggest an alternative hypothesis concerning documented differences between late 19th century German composers and their compositional styles.
Sampling and Features: A Commentary on Condit-Schultz (2016)
Authors: Ohriner Mitchell
Published: January 2017

In this commentary, I highlight some of the novel contributions of Nathaniel Condit-Schultz's "MCFlow: A Digital Corpus of Rap Transcriptions" and discuss issues of rhyme definition, sampling and corpus construction, feature representation, and historical narratives.
On the Interrelationship Between Global and Public Health and a Healthy Environment: A Discussion with Professor Linda Selvey
Authors: Storz Maximilian Andreas , Heymann Eric P
Published: January 2017

ABSTRACTDr. Linda Selvey is currently associate professor in the School of Public Health at Curtin University in Perth, Australia. She is not only a renowned Public Health physician but also has a PhD in Immunology. Her remarkable career includes projects and campaigns around the globe, encompassing countries such as Australia, Nepal, India, the Philippines and Liberia [1,2]. More recently, she was involved in the response to the Ebola epidemic and worked for the World Health Organization as a Field Coordinator for the Montserrado County in Liberia [3].In the early 1980s she became an active environmentalist and is particularly passionate about climate change and its health implica­tions. She has been involved in many environmental campaigns and between 2009 and 2011 she was CEO of Greenpeace Australia Pa­cific. Based on her huge experience in both global (and public) health and medicine, she often emphasizes on the strong links between environmentalism and health advocacy. These are going to be discussed in the interview below, including useful advice for medical students interested in global and public health.RÉSUMÉDre Linda Selvey travaille actuellement comme professeure agrégée au sein de l’École de santé publique de l’Université Curtin à Perth, en Australie. Détentrice d’un doctorat en immunologie, son travail en santé publique se distingue par de nombreux projets interna­tionaux l’ayant menée dans divers pays, y compris l’Australie, le Népal, l’Inde et les Philippines. Elle a également récemment participé aux efforts de contrôle et d’éradication de l’Ebola au Liberia en tant que coordinatrice sur le terrain pour l’Organisation mondiale de la Santé [1-3].Depuis les années 1980, Dre Selvey a une passion pour le changement climatique et ses effets parfois délétères sur l’homme et la santé publique. Cet intérêt s’est traduit entre autres par plusieurs campagnes pour l’environnement, allant jusqu’à siéger comme PDG de Greenpeace pour la région Australie Pacifique. S’établissant sur de longues années d’expérience, Dre Selvey préconise aujourd’hui une surveillance étroite entre la santé publique et l’environnement. C’est avec cela en tête que nous nous sommes entretenues avec Dre Selvey. Cet entretien comprend entre autres des recommandations pour les étudiants en médecine qui s’intéressent à la santé publique.
Acute cerebellar ataxia in a 3-year-old Bengali girl: a novel presentation of scrub typhus in pediatric age group
Authors: Ghosh Aniruddha , Sharma Saurav , Choudhury Jaydeep
Published: January 2017

Scrub typhus is known to cause local and systemic vasculitic response in almost all the systems of the body. In central nervous system it most commonly causes meningitis and encephalitis although several other atypical presentations have been documented. We present a case of a 3 years old child presenting with fever and isolated acute cerebellitis. Serum showed IgM antibodies to scrub typhus by ELISA. MRI scan of brain also corroborated with clinical findings. Patient showed rapid response to doxycycline therapy.
Incidence of nosocomial infection in the pediatric intensive care unit of a teaching hospital delivering tertiary level care
Authors: Ahirrao Varsha Suresh , Mauskar Anupama , T. Ravi
Published: January 2017

Background: Nosocomial infections are generally a chain of events whereby a source or reservoir of microorganisms is transmitted by some method to a susceptible host. The organisms causing infections can come from either the patient’s own endogenous flora or from external sources including hospital staff, equipment or even food, water, walls, floor, and some other surfaces.Methods: Children in age group of one month to twelve years are admitted to our PICU. All the patients admitted in PICU with PICU stay of more than 48 hours were daily monitored for fever or any other symptoms or sign suggestive of any infection. The patients who developed the same 48 hours after admission, which was not present at the time of admission, were included. Centers for Disease Control and Prevention definitions of nosocomial infections, as described later, are used as criteria for diagnosis of infections.Results: During study period, 466 patients were admitted to PICU with their PICU stay for more than 48 hours. Out of 466 patients, 35 patients had 49 episodes of nosocomial infections. Nosocomial incidence rate = 10.51 per 100 admissions. Nosocomial infection incidence density = 19.37 per 1000 patient days.Conclusions: In patients with nosocomial infection, the mean PICU stay was 17.31 days and mean hospital stay was 23.95 days.
Evaluation of serum uric acid in acute ischaemic stroke
Authors: Kaur Inderjeet , Khurana Ashok , Sachdev Jasmine Kaur , Mohan Gurinder
Published: January 2017

Background: The role of serum uric acid as a risk factor for acute ischaemic stroke is controversial and there is little information about it. Present study was done to estimate serum uric acid levels in patients of acute ischaemic stroke and to assess its risk factor potential.Methods: It was a prospective case control study carried out in the department of Medicine at Sri Guru Ramdas Institute of Medical Sciences and Research, Vallah, Sri Amritsar, Punjab, India from January 2015 to July 2016. 50 cases of acute ischaemic stroke were enrolled and were compared with same number of age and sex matched healthy controls. Serum uric acid levels were measured in cases (within 24 hours of stroke evolution). Glasgow coma scale (GCS) score was calculated for cases at time of admission. The results were statistically analysed.Results: Mean serum uric acid level in cases was 6.15±1.91mg/dl whereas it was 5.1±1.4 mg/dl in controls. The difference of serum uric acid levels between cases and controls was statistically significant (p = 0.0054). Patients with poor GCS had higher mean serum uric acid levels as compared to patients with mild or moderate GCS score which was statistically significant(p = 0.0426).Conclusions: Serum uric acid can be used as a marker for increased risk of stroke. Furthermore, serum uric acid can also be used for risk stratification after stroke.
Analysis of information characteristics of a dynamic displacement doppler transducer signal
Authors: Danilin A. I. , Gretskov A. A.
Published: January 2017

The article discusses the main features of the analysis of the Doppler transducer output signal that allow conducting experiments to determine the parameters of the oscillation of rotating elements of power units. A Doppler discrete- phase method that has fewer restrictions as compared to the classical discrete-phase method is presented. The theoretical rationale for the formation of the Doppler transducer output signal in the case of its non-contact interaction with the surface of the object under control (characteristic information sections of the output signal are considered) is presented. An analysis of the output waveform near its extreme values in the presence and absence of vibration of the controlled object is carried out using the waveforms obtained in conducting the pilot study as an example. Distinctive features of the output signal due to the rotation of the rotor and the vibrational motion of the surface of the blade controlled are discussed.
Ion source of DMS-01 scientific equipment for «AIST no 2» small spacecraft
Authors: Semkin N. D. , Piyakov I. V. , Rodina M. A. , Rodin D. V.
Published: January 2017

The main requirements imposed upon ion sources for on-board time-of-flight mass spectrometers are considered in the paper. An approximate formula to calculate the ionization cross section of an analyte substance is given. The dependence of the probability of analyte ionization for the selected ion source design is shown. Several deigns of ion sources are proposed that provide the required width of the zone of ionization by selecting source parameters. A design of the ion source providing increased reliability and lifetime of the unit is selected for the use in scientific equipment DMS-01 installed aboard small spacecraft AIST number 2. The results of a laboratory experiment on the operation of this design of the source are presented. The data obtained confirm the applicability of the Lotz-Drevins approximation formula to determine the probability of ionization of atoms or molecules of an analyte in the chosen design of the ion source.