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Sample records for blanco chirostoma humboldtianum

  1. The complete mitochondrial DNA of the endemic shortfin silverside, Chirostoma humboldtianum (Valenciennes, 1835).

    Science.gov (United States)

    Barriga-Sosa, Irene de los A; De León, Francisco J García; Del Río-Portilla, Miguel A

    2016-01-01

    The shortfin silverside Chirostoma humboldtianum, is an endemic fish from the Mesa Central of Mexico, it is considered the "ancestral" species of the "peces blancos" and plays an important role as a potential species for aquaculture. Here we sequence its mitogenome (Genbank accession number KJ921739), which has a total length of 16,447 bp, and the arrangement consist of 13 protein-coding genes, 2 ribosomal RNA (rRNA) genes and 22 transfer RNA similar to other Atheriniformes. This mitogenome will be useful for phylogenetic, population and phylogeographic studies of this and other important atherinopsid species. PMID:25185796

  2. Isolation and characterization of microsatellite loci in the Charal de Xochimilco Chirostoma humboldtianum

    OpenAIRE

    Rosa María García-Martínez; Francisco Javier García-De León; Omar Mejía; Irene de los Ángeles Barriga-Sosa

    2014-01-01

    Microsatellite loci were isolated and characterized for the endemic fish Chirostoma humboldtianum using an enrichment procedure. Eight polymorphic microsatellites were genotyped for 32 - 48 individuals from Tepuxtepec Dam, Michoacán. The number of alleles per locus ranged from 3 to 11 and the average observed and expected heterozygosities were 0.61 and 0.63, respectively. All loci deviated significantly from Hardy-Weinberg expectations, which might be related to small population sizes associa...

  3. Antibiotic and heavy metal resistance of Aeromonas hydrophila isolated from charal (Chirostoma humboldtianum, Valenciannes, 1835)

    OpenAIRE

    Gloria Luz Paniagua; Eric Monroy; Magdalena Perches; Erasmo Negrete; Octavio García; Sergio Vaca

    2006-01-01

    Antibiotic and heavy metal susceptibilities of twenty Aeromonas hydrophila strains, isolated from the gastrointestinal tract of the charal (Chirostoma humboldtianum), an autochthonous Mexican fish, were analyzed. All strains produced #946;-lactamase and were resistant to penicillin and dicloxacillin, showing single peak for minimum inhibitory concentration (MIC) distributions at 2000-4000 µg/mL and 500-1000 µg/ml, respectively. Ampicillin MIC distribution was bimodal with 20% resistant strai...

  4. Stable isotope evidence for trophic overlap of sympatric Mexican Lake Chapala silversides (Teleostei: Atherinopsidae: Chirostoma spp.

    Directory of Open Access Journals (Sweden)

    Norman Mercado-Silva

    2015-06-01

    Full Text Available We explore the trophic role that a diverse sympatric group of fishes in the genus Chirostoma play in a large, shallow lake in central Mexico, Lake Chapala. We use δ13C and δ15N stable isotope - based food web analyses to explore how they relate to other components of the Lake Chapala ecosystem. We find five Chirostoma species in top trophic levels of the Chapala food web compared to other fishes, relying on a combination of zooplankton, fish and benthic resources as energy sources. Food web metric analyses showed generally overlapping trophic niches for members of Chirostoma, especially in terms of δ13C. However, C. jordani had lower mean δ15N isotopic values than C. promelas. As a group, "pescados blancos" (C. sphyraena and C. promelas also had higher δ15N signatures than "charales" (C. consocium, C. jordani and C. labarcae reflecting greater piscivory, but these differences were not strong for all food web metrics used. Trophic overlap among species of Chirostoma in Lake Chapala raises questions about the forces that might have led to a morphologically diverse but functionally similar and monophyletic group of species.

  5. Efecto de la salinidad en la sobrevivencia de peces silvestres del género Chirostoma durante el transporte y mantenimiento en laboratorio

    OpenAIRE

    Guillermo Artemio Blancas-Arroyo; Rocío Frías-Sevilla; Eréndira De la Rosa-Pimentel; Virginia Suárez-Navarro; José Rodolfo Castro-Gómez; Javier Magaña-Morales

    2014-01-01

    Se comprobó el efecto de la salinidad en la sobrevivencia de peces silvestres del género Chirostoma, durante su transporte y aclimatación. Estos organismos son endémicos de México y conocidos como peces blancos y charales; los cuales se han caracterizado por su hipersensibilidad al manejo y su alto grado de estrés. Los modelos biológicos fueron dos especies de charales: Chirostoma jordani de Xochimilco cuenca de México y C. chapalae de Queréndaro subcuenca de Cuitzeo Michoacán. Se transportar...

  6. Blanco White and Walter Scott Blanco white y Walter Scott

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    Fernando DURÁN LÓPEZ

    2011-01-01

    Full Text Available The first edition of Ivanhoe; a romance. By the author of Waverley was published in Edinburgh in 1820. From the beginning of year 1823, José María Blanco White translated several excerpts from Ivanhoe in the numbers 1-3 of the magazine Variedades, owned by the publisher Rudolph Ackermann. in these articles and other later writings, the translator praised Scott as a model for a new way of painting history in a narrative. This paper studies his ideas on Scott’s historical novel, as well as his translation technique, compared with that of José Joaquín de Mora. En 1820 se publicó en Edimburgo la primera edición de Ivanhoe; a romance. By the author of Waverley. Desde comienzos de 1823, en los tres primeros números de su revista Variedades, promovida por el editor Rudolph Ackermann, José María Blanco White tradujo varios fragmentos de Ivanhoe entre grandes elogios. Asimismo, Blanco White tomó a Scott como modelo de referencia de una nueva manera de pintar la historia por medio de la novela en otros varios escritos críticos de años posteriores. El artículo estudia las ideas de Blanco White acerca de la novela histórica de Scott y su técnica como traductor, comparada con la de José Joaquín Mora.

  7. Dark Energy Camera for Blanco

    Energy Technology Data Exchange (ETDEWEB)

    Binder, Gary A.; /Caltech /SLAC

    2010-08-25

    In order to make accurate measurements of dark energy, a system is needed to monitor the focus and alignment of the Dark Energy Camera (DECam) to be located on the Blanco 4m Telescope for the upcoming Dark Energy Survey. One new approach under development is to fit out-of-focus star images to a point spread function from which information about the focus and tilt of the camera can be obtained. As a first test of a new algorithm using this idea, simulated star images produced from a model of DECam in the optics software Zemax were fitted. Then, real images from the Mosaic II imager currently installed on the Blanco telescope were used to investigate the algorithm's capabilities. A number of problems with the algorithm were found, and more work is needed to understand its limitations and improve its capabilities so it can reliably predict camera alignment and focus.

  8. Blanco White and Walter Scott

    Directory of Open Access Journals (Sweden)

    Fernando DURÁN LÓPEZ

    2011-01-01

    Full Text Available The first edition of Ivanhoe; a romance. By the author of Waverley was published in Edinburgh in 1820. From the beginning of year 1823, José María Blanco White translated several excerpts from Ivanhoe in the numbers 1-3 of the magazine Variedades, owned by the publisher Rudolph Ackermann. in these articles and other later writings, the translator praised Scott as a model for a new way of painting history in a narrative. This paper studies his ideas on Scott’s historical novel, as well as his translation technique, compared with that of José Joaquín de Mora.

  9. Comparación del efecto anestésico del aceite de clavo, solución salina y solución coloidal en juveniles de Chirostoma jordani (Woolman, 1894) Comparison of anaesthetic effect of clove oil, saline solution and colloidal solution in juvenile Chirostoma jordani (Woolman, 1894)

    OpenAIRE

    G. Vázquez; Castro, T.; Hernández, A.; Castro, J.; Lara, R.

    2013-01-01

    Los peces de la especie Chirostoma jordani presentan un intenso estrés durante las prácticas de manejo, dejándolos susceptibles a enfermedades y a tasas altas de mortalidad. El objetivo del presente estudio fue comparar el efecto anestésico del aceite de clavo, solución salina y una solución coloidal (Pentabiocare) en juveniles de Chirostoma jordani. Para cada tratamiento se utilizaron 18 ejemplares de C. jordani de dos meses de edad. Los tratamientos constaron en aceite de clavo (5, 8, 13 y ...

  10. Importancia de los lípidos en la reproducción y ontogenia del pez blanco de Pátzcuaro (Chirostoma estor estor)

    OpenAIRE

    Aparicio, B.

    2004-01-01

    Para producir larvas de peces con buenos rendimientos, se deben conocer los requerimientos nutricionales de la especie, particularmente en los primeros estadios larvarios. Además, se sabe que la nutrición de los reproductores influye directamente en la calidad de las larvas debido, principalmente, a la cantidad y calidad de lípidos que son transferidos desde la gónada hacia los huevos. El objetivo de este trabajo fue analizar la composición de lípidos en huevos, embriones y larvas de pez blan...

  11. Comparación del efecto anestésico del aceite de clavo, solución salina y solución coloidal en juveniles de Chirostoma jordani (Woolman, 1894)

    OpenAIRE

    G. Vázquez; Castro, T.; Hernández, A.; Castro, J.; Lara, R.

    2013-01-01

    Los peces de la especie Chirostoma jordani presentan un intenso estrés durante las prácticas de manejo, dejándolos susceptibles a enfermedades y a tasas altas de mortalidad. El objetivo del presente estudio fue comparar el efecto anestésico del aceite de clavo, solución salina y una solución coloidal (Pentabiocare) en juveniles de Chirostoma jordani. Para cada tratamiento se utilizaron 18 ejemplares de C. jordani de dos meses de edad. Los tratamientos constaron en aceite de clavo (5, 8, 13 y ...

  12. New depside from Citrus reticulata Blanco.

    Science.gov (United States)

    Phetkul, Uraiwan; Phongpaichit, Souwalak; Watanapokasin, Ramida; Mahabusarakam, Wilawan

    2014-01-01

    A new depside, named depcitrus A (1), and 31 known compounds were isolated from the peels, leaves and branch barks of Citrus reticulata Blanco. Methylation of the high polarity fractions from the branch barks and peels gave one new methylated compound named depcitrus B (14) and five known compounds. Their structures were established based on spectroscopic evidence. The antioxidant, antimicrobial and cytotoxic activities of some pure compounds were evaluated. PMID:24635118

  13. Spatial patterns of zooplanktivore Chirostoma species (Atherinopsidae during water-level fluctuation in the shallow tropical Lake Chapala, Mexico: seasonal and interannual analysis

    Directory of Open Access Journals (Sweden)

    Rodrigo Moncayo-Estrada

    2011-01-01

    Full Text Available This study addresses the influence of water-level fluctuations on fish distribution at two temporal scales: seasonal (dry and rainy and interannual (low and high volume conditions. The analysis of abundance relationships among three zooplanktivore Chirostoma species at fifteen sites in Lake Chapala, Mexico, revealed the significant influence of contrasting conditions (P=0.0002. Seasonally, segregation was more related to species dominance in the dry season and exclusively related to environmental characteristics in the rainy season. Interanually, biotic influence occurred in the shallowest and the deepest episodes of the lake. Environmental characteristics influenced species distribution when the lake reached 25% of its volume. Site, depth, temperature, and salinity were the leading factors influencing fish distribution. These results emphasize the necessity to implement different management strategies according to lake volume, particularly when a critical threshold is reached.El presente estudio describe la influencia que tiene la fluctuación del nivel del agua en la distribución de los peces a dos diferentes escalas: estacional (estiaje y lluvias e interanual (condiciones de bajo y alto volumen. El análisis de las relaciones de abundancia entre tres especies zooplanctófagas de Chirostoma en quince sitios del Lago de Chapala, México, reveló una influencia estadísticamente significativa en las condiciones contrastantes (P=0.0002. Estacionalmente, la segregación estuvo más relacionada a la dominancia de las especies en la época de estiaje y exclusivamente relacionada a las características ambientales en la época de lluvias. Interanualmente, la influencia biótica se presenta en los episodios más someros y más profundos del lago. Las características ambientales influenciaron la distribución de las especies cuando el lago alcanzó el 25% de su volumen. El sitio geográfico, profundidad, temperatura y salinidad fueron los principales

  14. DEBRIS DISKS OF MEMBERS OF THE BLANCO 1 OPEN CLUSTER

    International Nuclear Information System (INIS)

    We have used the Spitzer Space Telescope to obtain Multiband Imaging Photometer for Spitzer (MIPS) 24 μm photometry for 37 members of the ∼100 Myr old open cluster Blanco 1. For the brightest 25 of these stars (where we have 3σ uncertainties less than 15%), we find significant mid-IR excesses for eight stars, corresponding to a debris disk detection frequency of about 32%. The stars with excesses include two A stars, four F dwarfs, and two G dwarfs. The most significant linkage between 24 μm excess and any other stellar property for our Blanco 1 sample of stars is with binarity. Blanco 1 members that are photometric binaries show few or no detected 24 μm excesses whereas a quarter of the apparently single Blanco 1 members do have excesses. We have examined the MIPS data for two other clusters of similar age to Blanco 1-NGC 2547 and the Pleiades. The AFGK photometric binary star members of both of these clusters also show a much lower frequency of 24 μm excesses compared to stars that lie near the single-star main sequence. We provide a new determination of the relation between the V - K s color and K s - [24] color for main sequence photospheres based on Hyades members observed with MIPS. As a result of our analysis of the Hyades data, we identify three low mass Hyades members as candidates for having debris disks near the MIPS detection limit.

  15. New acridone from the wood of Citrus reticulata Blanco.

    Science.gov (United States)

    Phetkul, Uraiwan; Wanlaso, Nutthakran; Mahabusarakam, Wilawan; Phongpaichit, Souwalak; Carroll, Anthony R

    2013-10-01

    A new acridone, named citruscridone (1) together with five known compounds were isolated from the wood of Citrus reticulata Blanco. Their structures were established based on spectroscopic evidence. The antibacterial and antifungal activities of the wood extracts and pure compounds were evaluated. PMID:23697332

  16. Project Rio Blanco: detonation related activities. Final report

    International Nuclear Information System (INIS)

    Project Rio Blanco is described in relation to detonation, its history, execution, and results. Topics discussed include generalized site activities, emplacement well, explosive services and operations, operational safety, environmental protection program, seismic effects and damage claims, and add-on programs. (U.S.)

  17. Modification of the colony tower for the Rio Blanco detonation

    International Nuclear Information System (INIS)

    Supplemental structural bracing was designed and installed for the 180-ft-tall Colony Tower, an experimental oil shale processing retort structure, in anticipation of its lateral response to the Rio Blanco detonation. The tower is a steel structure with both horizontal and vertical diagonal bracing. Data obtained from the earlier Project Rulison detonation indicated that an evaluation study was necessary. Design criteria that would provide an adequate margin of safety were developed based on predicted Rio Blanco ground motion. The evaluation of the unmodified structure showed that several bracing members would be subjected to forces exceeding their yield strength, and some would reach a level at which failure could occur. Further analyses were made with assumed modified bracing members. A final scheme for modified vertical bracing was established and installed. After modification, the response of the tower during the Rio Blanco detonation was measured by instruments on the ground and at various locations on the tower, and no evidence of damage was discovered. The modification of the Colony Tower and the procedures used to determine these modifications show the usefulness of current ground motion and structural response prediction technology for forecasting dynamic behavior of important structures subjected to ground motion from underground nuclear explosions. (auth)

  18. Comparación del efecto anestésico del aceite de clavo, solución salina y solución coloidal en juveniles de Chirostoma jordani (Woolman, 1894 Comparison of anaesthetic effect of clove oil, saline solution and colloidal solution in juvenile Chirostoma jordani (Woolman, 1894

    Directory of Open Access Journals (Sweden)

    G Vázquez

    2013-01-01

    Full Text Available Los peces de la especie Chirostoma jordani presentan un intenso estrés durante las prácticas de manejo, dejándolos susceptibles a enfermedades y a tasas altas de mortalidad. El objetivo del presente estudio fue comparar el efecto anestésico del aceite de clavo, solución salina y una solución coloidal (Pentabiocare en juveniles de Chirostoma jordani. Para cada tratamiento se utilizaron 18 ejemplares de C. jordani de dos meses de edad. Los tratamientos constaron en aceite de clavo (5, 8, 13 y 25 µL/L, solución salina (7 g/L y solución coloidal (5 mL/L. Durante seis horas se registraron, en los peces, las fases de inducción a la anestesia y los tiempos de recuperación. Las concentraciones altas y los tiempos prolongados de exposición al aceite de clavo se asociaron a las fases profundas de la anestesia. La concentración de 25 µL/L de aceite de clavo indujo a los organismos a la fase tres y a partir de la tercer hora de exposición éstos entraron en la fase cinco, mientras que las soluciones salina y coloidal indujeron a los peces a la fase uno de sedación mostrando los lapsos más prolongados (seis horas. El tiempo de recuperación de los juveniles en la concentración de 25 µL/L de aceite de clavo se extendió a 3.006,0 ± 5,3 segundos, mientras que con solución salina y coloidal, la respuesta de los peces a la recuperación del ritmo opercular, reactividad a estímulos externos y natación activa fue entre 60 a 180 segundos. Los resultados de este experimento indicaron que la solución salina y solución coloidal mantuvieron a los juveniles de C. jordani en una sedación ligera durante un lapso de seis horas con tiempos breves de recuperación. El uso de aceite de clavo en dosis de 5 y 13 µL/L indujo a los juveniles a estados de anestesia ligera y profunda respectivamente, con una recuperación de no más de 420 segundos.The fish Chirostoma jordani undergoes intense stress during handling practices, making it susceptible to

  19. Cantharellus gallaecicus (Blanco-Dios Olariaga, comb. & stat. nov (Cantharellaceae

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    Olariaga, Ibai

    2007-12-01

    Full Text Available Cantharellus gallaecicus comb. & stat. nov. is proposed, after the examination of its holotype and additional material. Based on the characters observed in all the studied material (i.e., thinwalled hyphae of the pileipelis, minute basidiomata with white to grey pileus, and surface that turns yellow when bruised it is considered that C. gallaecicus is more closely related to C. romagnesianus than to C. cibarius.Se propone Cantharellus gallaecicus comb. & stat. nov. tras revisar su holótipo y material adicional disponible. Dado que todo el material examinado posee hifas del pileipelis de pared delgada, basidiomas pequeños con píleo de blanco a gris, y superficie que vira a amarillo al roce, se considera que C. gallaecicus es una especie más estrechamente relacionada con C. romagnesianus que con C. cibarius.

  20. DURABILIDAD DEL CEMENTO PORTLAND BLANCO ADICIONADO CON PIGMENTO AZUL ULTRAMAR

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    CAROLINA GIRALDO

    2010-01-01

    Full Text Available El pigmento Azul Ultramar (AU es un aluminosilicato polisulfurado de sodio que reacciona con el aluminato tricálcico (C3A y con el óxido de calcio (CaO del cemento Pórtland blanco en presencia de agua, generando cantidades considerables de etringita a edad temprana y en menor proporción de tobermorita. Esta etringita primaria se presenta en forma de fibras no orientadas mejorando el desempeño mecánico de los morteros, y al mismo tiempo dejando pocas cantidades de C3A disponible para la formación de etringita secundaria. En esta investigación se evalúa la durabilidad a diferentes edades de curado en morteros de cemento Portland blanco sustituidos por 0%, 10% y 20% de AU en peso, mediante pruebas de succión capilar y evaluación del cambio longitudinal de morteros expuestos a una solución de sulfato de sodio con una concentración del 5% (ASTM C1012. Los resultados evidencian una mayor resistencia a compresión y a flexión, una significativa disminución de la expansión y una reducción hasta del 800% de la absorción de agua en morteros con AU. Todo esto debido a la formación de las fases minerales adicionales (etringita primaria y tobermorita, las cuales fueron identificadas mediante microscopía electrónica de barrido (SEM.

  1. Evaluation of skin anti-aging potential of Citrus reticulata blanco peel

    OpenAIRE

    Vinita D Apraj; Nancy S Pandita

    2016-01-01

    Background: The peel of Citrus reticulata Blanco is traditionally used as tonic, stomachic, astringent, and carminative. It is also useful in skin care. Objective: To study the anti-aging potential of alcoholic extracts of C. reticulata Blanco peel using in vitro antioxidant and anti-enzyme assays. Materials and Methods: Plant extracts were obtained by Soxhlation (CR HAE- Hot Alcoholic Extract of Citrus reticulata) and maceration method (CR CAE- Cold Alcoholic Extract of Citrus reticulata). Q...

  2. El destierro infinito de Blanco White en la mirada de Juan Goytisolo

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    Durán López, Fernando

    2010-06-01

    Full Text Available In the years 1970-1972, the novelist Juan Goytisolo published several studies and translations on the work of José María Blanco White, which represent a key moment in the recovery of that forgotten writer for the modern Spanish culture. The argument made in this essay is that the consciously identifying strategy applied by Goytisolo on Blanco White, in order to define a Spanish intellectual tradition throughout the centuries, marked by exile and dissent, is in fact a deformation of the figure and thought of the writer from Seville. Blanco White’s reception in Spain, however, has been conditioned by that reading.En torno a los años 1970-1972 el novelista Juan Goytisolo publica varios estudios y traducciones sobre la obra de José María Blanco White, que suponen un momento clave en la recuperación de ese olvidado escritor para la moderna cultura española. La tesis formulada en el presente artículo es que la estrategia conscientemente identificadora que aplica Goytisolo sobre Blanco White, a fin de definir una tradición intelectual española a lo largo de los siglos marcada por el exilio y la disidencia, supone de hecho una deformación de la figura y el pensamiento del escritor sevillano. La recepción de Blanco White en España ha quedado, sin embargo, condicionada por esa lectura.

  3. Lupeol:An antioxidant triterpene in Ficus pseudopalma Blanco (Moraceae)

    Institute of Scientific and Technical Information of China (English)

    Librado A Santiago; Anna Beatriz R Mayor

    2014-01-01

    Objective: To assess the antioxidant activity of Ficus pseudopalma Blanco (Moraceae) (F. pseudopalma) and characterize the active components present in it.Methods:Column chromatography of crude ethanol leaf extract of F. pseudopalma was performed and seven fractions were obtained, labeled as F1, F2, F3, F4, F5, F6, F7. DPPH, FRAP, Griess, Fenton and superoxide radical scavenging assays were performed to assess the antioxidant ability of the fractions. Thin layer chromatography (TLC), high performance liquid chromatography and Fourier transfer infrared spectroscopy (FTIR) were performed to identify and characterize the bioactive component present in each fractions of F. pseudopalma.Results:DPPH and FRAP assay showed that F5, F6 and F7 exhibited the good proton accepting ability and reducing power as compared to the other fractions. All fractions exhibited a good nitric oxide radical scavenging activity wherein F1, F2 and F3 showed the highest inhibition. However, all of the fractions exhibited a stimulatory activity on hydroxyl and superoxide radicals. Lupeol matched one of the spots on the thin layer chromatography chromatogram of the fractions. Linear gradient high performance liquid chromatography and spiking of lupeol with the fraction revealed the presence of 5.84 mg/L lupeol in F6. Infrared spectra of the fractions revealed the presence of C-C, OH, aromatic C=C and C=O groups.Conclusions:The identified lupeol in F. pseudopalma may be responsible for the exhibited antioxidant property of the plant. Furthermore, knowing the antioxidant capability of the plant, F. pseudopalma can be developed into products which can help prevent the occurrence of oxidative stress related diseases.

  4. ZOOARQUEOLOGÍA DE LA ALDEA FORMATIVA DE PALO BLANCO (TINOGASTA, CATAMARCA, ARGENTINA / Zooarchaeology of the formative village of Palo Blanco (Tinogasta, Catamarca, Argentina

    Directory of Open Access Journals (Sweden)

    Juan Pablo Miyano

    2015-12-01

    Full Text Available En el presente trabajo se abordan los conjuntos arqueofaunísticos de la localidad arqueológica de Palo Blanco recuperados en intervenciones realizadas en la década de 1960 y en la década de 2000. Esta localidad se encuentra emplazada en el sector norte del bolsón de Fiambalá (Tinogasta, Catamarca y se compone de varios núcleos habitacionales de distribución dispersa, predominantemente rectangulares y con muros de tapia. Su ocupación no fue sincrónica y se extiende desde el siglo III al siglo X A.D. La tendencia en el aprovechamiento de recursos faunísticos identificada fundamentalmente a partir del abordaje de los conjuntos de dos núcleos habitacionales sugiere que los camélidos fueron el principal recurso de origen animal utilizado en la aldea, en donde se encontraron especies tanto domesticadas (Lama glama como silvestres (Vicugna vicugna. Además, la presencia predominante de camélidos subadultos sugiere una estrategia de pastoreo vinculada al aprovechamiento de recursos primarios como carne, médula y grasa. Los resultados a los que se arribaron permiten profundizar en el conocimiento de las actividades económicas de los grupos humanos que habitaron la aldea de Palo Blanco a lo largo del primer milenio de la era. AbstractIn this paper we approach the archaeofaunistic remains recovered during excavations of the archeological locality of Palo Blanco in the decades of 1960 and 2000. Palo Blanco is located in the north sector of the Bolsón of Fimabalá area (Tinogasta, Catamarca and it is composed of several rectangular shaped dwellings with tapia-style walls and dispersed distribution. The period of occupation of the village was between the third and tenth century A.D. although the dwellings were not inhabited synchronously. The identified tendency in the exploitation of faunal resources indicates that the camelids were the main resources. Osteometric studies show that domestic and wild camelids (Lama glama and Vicugna vicugna

  5. Blancos blandos enfatizados para clasificación máquina

    OpenAIRE

    El Jelali, Soufiane

    2011-01-01

    El modo más habitual de entrenar máquinas de clasificación es minimizar mediante búsqueda analítica una función de coste que depende de los valores de blancos y de salidas. Ello impone abandonar las salidas duras, no derivables. Además, el carácter discreto de los blancos no permite obtener buenos diseños considerando salidas lineales. De lo anterior surge la conveniencia de emplear las clásicas activaciones sigmoidales; ahora bien, su presencia no puede considerarse “natural” para cualesquie...

  6. Estimaciones in situ de la fuerza de blanco (TS) de la merluza de tres aletas

    OpenAIRE

    Lillo, S.; Bahamonde, R.; C. Cancino; J. Saavedra; Saavedra, A.; Flores, F.

    2007-01-01

    En el presente informe se entregan los resultados del proyecto FIP 2005-29, cuyo objetivo general es estimar mediante métodos in situ, la fuerza de blanco de la especie merluza de tres aletas (Micromesistius australis). El enfoque metodológico propuesto consideró dos formas para la estimación de la fuerza de blanco. El primero correspondió al método de estimación de TS in situ, en el cual las mediciones acústicas se realizan con los peces en su ambiente natural y en el que la identificación d...

  7. At the grounding of computational psychoanalysis: on the work of Ignacio Matte Blanco. : A general history of culture overview of Matte Blanco bilogic in comparison.

    OpenAIRE

    Iurato, Giuseppe

    2014-01-01

    Paper to be published in the Proceedings of the 13th IEEE International Conference on Cognitive Informatics & Cognitive Computing - IEEE ICCI*CC 2014 Special Session 4, London, August 18-20, 2014. In this paper, we wish to highlight, within the general cultural context, some possible elementary computational psychoanalysis formalizations concerning Matte Blanco's bi-logic components through certain very elementary mathematical tools and notions drawn from theoretical physics and algebra.

  8. CTIO under Victor Blanco's Directorship in the Years 1968-1977

    Science.gov (United States)

    Hesser, J. E.

    2015-05-01

    From my perspective of four decades of hindsight, diverse personal experiences in the initial years of Victor Blanco's directorship became lessons upon which I've gratefully drawn throughout my career. These years spanned a period of remarkable growth of CTIO's technical and scientific impact during exceptionally challenging times for Chile and Chileans.

  9. Detailed Ar-40/Ar-39 dating of geologic events associated with the Mantos Blancos copper deposit, northern Chile

    OpenAIRE

    Oliveros, V.; Feraud, G.; L. Aguirre; Ramirez, L.; Fornari, Michel; Palacios, C.; Parada, M.

    2008-01-01

    The Ar-40/Ar-39 geochronological method was applied to date magmatic and hydrothermal alteration events in the Mantos Blancos mining district in the Coastal Cordillera of northern Chile, allowing the distinction of two separate mineralization events. The Late Jurassic Mantos Blancos orebody, hosted in Jurassic volcanic rocks, is a magmatic-hydrothermal breccia-style Cu deposit. Two superimposed mineralization events have been recently proposed. The first event is accompanied by a phyllic hydr...

  10. May 2011 Groundwater and Surface Water Sampling at the Rio Blanco, Colorado, Site (Data Validation Package)

    Energy Technology Data Exchange (ETDEWEB)

    None

    2011-12-01

    Annual sampling was conducted at the Rio Blanco, Colorado, site for the Long-Term Hydrologic Monitoring Program May 16-17, 2011, to monitor groundwater and surface water for potential radionuclide contamination. Sampling and analyses were conducted as specified in Sampling and Analysis Plan for the U.S. Department of Energy Office of Legacy Management Sites (LMS/PRO/S04351, continually updated). A duplicate sample was collected from location Johnson Artesian WL. Samples were analyzed by the U.S. Environmental Protection Agency (EPA) Radiation&Indoor Environments National Laboratory in Las Vegas, Nevada. Samples were analyzed for gamma-emitting radionuclides by high-resolution gamma spectrometry, and for tritium using the conventional method. Tritium was not measured using the enrichment method because the EPA laboratory no longer offers that service. Results of this monitoring at the Rio Blanco site demonstrate that groundwater and surface water outside the boundaries have not been affected by project-related contaminants.

  11. May 2012 Groundwater and Surface Water Sampling at the Rio Blanco, Colorado, Site (Data Validation Package)

    Energy Technology Data Exchange (ETDEWEB)

    None

    2012-12-01

    Annual sampling was conducted at the Rio Blanco, Colorado, site for the Long-Term Hydrologic Monitoring Program May 9-10, 2012, to monitor groundwater and surface water for potential radionuclide contamination. Sampling and analyses were conducted as specified in Sampling and Analysis Plan for the U.S. Department of Energy Office of Legacy Management Sites (LMS/PRO/S04351, continually updated). A duplicate sample was collected from location Johnson Artesian WL. Samples were analyzed for gamma-emitting radionuclides by high-resolution gamma spectrometry and for tritium using the conventional and enrichment methods. Results of this monitoring at the Rio Blanco site demonstrate that groundwater and surface water outside the site boundaries have not been affected by project-related contaminants.

  12. Evaluation of skin anti-aging potential of Citrus reticulata blanco peel

    Directory of Open Access Journals (Sweden)

    Vinita D Apraj

    2016-01-01

    Abbreviation Used: ECM: Extracellular matrix, UV: Ultra violet, ROS: Reactive Oxygen Species, MMP: Matrix metalloproteinase, Chc: Clostridium histolyticum collagenase, DPPH: 2, 2-diphenyl-1-picrylhydrazyl, GC-MS: Gas Chromatography- Mass Spectroscopy, RT: Room Temperature, μg GAE/ mg: Microgram Gallic acid equivalent / milligram, W/V: Weight by Volume, μg QE/ mg: Microgram Quercetin equivalent / milligram, CR HAE: Hot Alcoholic Extract of Citrus reticulata Blanco, CR CAE: Cold Alcoholic Extract of Citrus reticulata Blanco, EC50: Half Maximal Effective Concentration, PMS NADH: Phenazine methosulfate nicotinamide adenine dinucleotide, NBT: Nitroblue tetrazolium, DMSO: Dimethyl sulfoxide, APS: Ammonium Persulphate, AAPH: 2,2 -azobis(2-amidino-propane dihydrochloride, TROLOX: (± 6-hydroxy-2,5,7,8-tetramethyl chromane-2-carboxylic acid, ORAC: Oxygen Radical Absorbance Capacity, FALGPA: N-[3-(2-Furyl acryloyl]-Leu-Gly-Pro-Ala, SANA: Succinyl-Ala-Ala-Ala-p-nitroanilide, Rf: Retardation Factor, MSD: Mass Selective Detector

  13. Project Rio Blanco definition plan. Additional formation evaluation and production testing

    International Nuclear Information System (INIS)

    Since the multiple Rio Blanco detonation three reentry wells have been drilled for test purposes: RB-E-01 (Emplacement Well); RB-AR-2 (Alternate Reentry Well); and RB-U-4 (Formation Evaluation Well). Additional testing in all these wells is now required to resolve some remaining technical questions. A plan describing the procedures, methods, responsibilities, and scheduling of the field operations is presented

  14. Light Echoes of Ancient Transients with the Blanco CTIO 4m Telescope

    CERN Document Server

    Rest, A; Welch, D L; Prieto, J L; Bianco, F B; Matheson, T; Smith, R C; Suntzeff, N B

    2015-01-01

    For over a century, light echoes have been observed around variable stars and transients. The discovery of centuries-old light echoes from supernovae in the Large Magellanic Cloud has allowed the spectroscopic characterization of these events using modern instrumentation, even in the complete absence of any visual record of those events. Here we review the pivotal role the Blanco 4m telescope played in these discoveries.

  15. 2015 Long-Term Hydrologic Monitoring Program Sampling and Analysis Results at Rio Blanco, Colorado

    Energy Technology Data Exchange (ETDEWEB)

    Findlay, Rick [Nararro Research and Engineering, Oak Ridge, TN (United States); Kautsky, Mark [US Department of Energy, Washington, DC (United States). Office of Legacy Management

    2015-12-01

    The U.S. Department of Energy (DOE) Office of Legacy Management conducted annual sampling at the Rio Blanco, Colorado, Site for the Long-Term Hydrologic Monitoring Program (LTHMP) on May 20–21, 2015. This report documents the analytical results of the Rio Blanco annual monitoring event, the trip report, and the data validation package. The groundwater and surface water monitoring samples were shipped to the GEL Group Inc. laboratories for conventional analysis of tritium and analysis of gamma-emitting radionuclides by high-resolution gamma spectrometry. A subset of water samples collected from wells near the Rio Blanco site was also sent to GEL Group Inc. for enriched tritium analysis. All requested analyses were successfully completed. Samples were collected from a total of four onsite wells, including two that are privately owned. Samples were also collected from two additional private wells at nearby locations and from nine surface water locations. Samples were analyzed for gamma-emitting radionuclides by high-resolution gamma spectrometry, and they were analyzed for tritium using the conventional method with a detection limit on the order of 400 picocuries per liter (pCi/L). Four locations (one well and three surface locations) were analyzed using the enriched tritium method, which has a detection limit on the order of 3 pCi/L. The enriched locations included the well at the Brennan Windmill and surface locations at CER-1, CER-4, and Fawn Creek 500 feet upstream.

  16. Geologic framework, hydrostratigraphy, and ichnology of the Blanco, Payton, and Rough Hollow 7.5-minute quadrangles, Blanco, Comal, Hays, and Kendall Counties, Texas

    Science.gov (United States)

    Clark, Allan K.; Golab, James A.; Morris, Robert E.

    2016-09-13

    This report presents the geologic framework, hydro­stratigraphy, and ichnology of the Trinity and Edwards Groups in the Blanco, Payton, and Rough Hollow 7.5-minute quad­rangles in Blanco, Comal, Hays, and Kendall Counties, Texas. Rocks exposed in the study area are of the Lower Cretaceous Trinity Group and lower part of the Fort Terrett Formation of the Lower Cretaceous Edwards Group. The mapped units in the study area are the Hammett Shale, Cow Creek Limestone, Hensell Sand, and Glen Rose Limestone of the Trinity Group and the lower portion of the Fort Terrett Formation of the Edwards Group. The Glen Rose Limestone is composed of the Lower and Upper Members. These Trinity Group rocks con­tain the upper and middle Trinity aquifers. The only remaining outcrops of the Edwards Group are the basal nodular member of the Fort Terrett Formation, which caps several hills in the northern portion of the study area. These rocks were deposited in an open marine to supratidal flats environment. The faulting and fracturing in the study area are part of the Balcones fault zone, an extensional system of faults that generally trends southwest to northeast in south-central Texas.The hydrostratigraphic units of the Edwards and Trinity aquifers were mapped and described using a classification system based on fabric-selective or not-fabric-selective poros­ity types. The only hydrostratigraphic unit of the Edwards aquifer present in the study area is hydrostratigraphic unit VIII. The mapped hydrostratigraphic units of the upper Trinity aquifer are (from top to bottom) the Camp Bullis, upper evaporite, fossiliferous, and lower evaporite which are interval equivalent to the Upper Member of the Glen Rose Limestone. The middle Trinity aquifer encompasses (from top to bottom) the Lower Member of the Glen Rose Limestone, the Hensell Sand Member, and the Cow Creek Limestone Member of the Pearsall Formation. The Lower Member of the Glen Rose Limestone is subdivided into six informal hydro

  17. Project Rio Blanco. Environmental surveillance summary report, Part 2, July 1973-December 1976

    Energy Technology Data Exchange (ETDEWEB)

    1976-01-01

    Project RIO BLANCO was a joint venture undertaken by the US Atomic Energy Commission (AEC) representing the federal government, and CER Geonuclear Corporation representing private industry. As originally conceived, Phase I of the project involved the simultaneous detonation of three nuclear devices in a single emplacement well, and was the third event in the AEC's Plowshare program to develop peaceful uses for nuclear devices. The main purpose of the RIO BLANCO experiment, as well as that of the other two Plowshare detonations, was to investigate the feasibility of using nuclear detonations in deep underground formations where the gas was too tightly held to be released under other known techniques. A total of approximately 9000 radiochemical analyses have been done on 4110 environmental samples pertaining to Project RIO BLANCO by the Department during the period July, 1973 through December, 1976. These include: 3186 air particulate filter samples; 54 air moisture samples; 34 sediment and soil samples; 9 compressed air samples; 44 municipal water supply samples; 122 special well samples; 622 river and stream samples; and 39 snow samples. Levels of radioactivity in the environment and salinity in the surface and well waters were determined before the detonation so that any undesirable changes caused by the detonations could be more easily identified. The collected data identify environmental levels of radioactivity for an extensive area of western Colorado. This report is prepared in two parts. Part I covers the period January 1, 1971 through June 30, 1973, including pre-shot activities and results of surveillance for the six weeks following the detonations. Part II contains the results of environmental surveillance during the periods of re-entry and production test flaring of the gas from the cavities produced by the nuclear explosions and during the period at final shutdown and abandonment of the site. 18 figs., 1 tab.

  18. May 2013 Groundwater and Surface Water Sampling at the Rio Blanco, Colorado, Site (Data Validation Package)

    Energy Technology Data Exchange (ETDEWEB)

    None

    2013-10-01

    Annual sampling was conducted at the Rio Blanco, Colorado, site for the Long-Term Hydrologic Monitoring Program May 14-16, 2013, to monitor groundwater and surface water for potential radionuclide contamination. Sampling and analyses were conducted as specified in Sampling and Analysis Plan for the U.S. Department of Energy Office of Legacy Management Sites (LMS/PRO/S04351, continually updated). A duplicate sample was collected from location CER #1 Black Sulphur. Samples were analyzed for gamma-emitting radionuclides by high-resolution gamma spectrometry and for tritium using the conventional and enrichment methods.

  19. Discrimination of Citrus reticulata Blanco and Citrus reticulata 'Chachi' by gas chromatograph-mass spectrometry based metabolomics approach.

    Science.gov (United States)

    Duan, Li; Guo, Long; Dou, Li-Li; Zhou, Chang-Lin; Xu, Feng-Guo; Zheng, Guo-Dong; Li, Ping; Liu, E-Hu

    2016-12-01

    Citri Reticulatae Pericarpium, mainly including the pericarp of Citrus reticulata Blanco and the pericarp of Citrus reticulata 'Chachi', has been consumed daily as food and dietary supplement for centuries. In this study, GC-MS based metabolomics was employed to compare comprehensively the volatile constituents in Citrus reticulata Blanco and Citrus reticulata 'Chachi'. Principal component analysis and orthogonal partial least squares discrimination analysis indicated that samples could be distinguished effectively from one another. Fifteen metabolites were finally identified for use as chemical markers in discrimination of Citri Reticulatae Pericarpium samples. The antimicrobial activity against Gram-negative and Gram-positive bacteria of the volatile oil from Citrus reticulata Blanco and Citrus reticulata 'Chachi' was investigated preliminarily. PMID:27374515

  20. Blanco White y Demoustier: sobre la traducción del poema «La vida»

    OpenAIRE

    Fernando DURÁN LÓPEZ

    2015-01-01

    Entre los poemas escritos por José María Blanco Crespo (Blanco White) en Madrid durante el periodo 1805-1808, que fueron publicados en 1943 por M. V. de Lara, se encuentra una traducción titulada «La vida», cuyo texto origen se desconocía. En este artículo se identifica dicha fuente: un poema lírico inserto en un libro de filosofía moral del escritor francés Charles-Albert Demoustier; asimismo, se explica su contexto y difusión y se comenta el proceso de traducción aplicado.

  1. Anti-fungal activity of Citrus reticulata Blanco essential oil against Penicillium italicum and Penicillium digitatum.

    Science.gov (United States)

    Tao, Nengguo; Jia, Lei; Zhou, Haien

    2014-06-15

    The chemical composition of Citrus reticulata Blanco essential oil was analysed using GC/MS. Monoterpene hydrocarbons (C10H16) constituted the majority (88.96%, w/w) of the total oil. The oils dose-dependently inhibited Penicillium italicum and Penicillium digitatum. The anti-fungal activity of the oils against P. italicum was attributed to citronellol, octanal, citral, decanal, nonanal, β-pinene, linalool, and γ-terpinene, whereas anti-fungal activity against P. digitatum is attributed to octanal, decanal, nonanal, limonene, citral, γ-terpinene, linalool, and α-terpineol. The oils altered the hyphal morphology of P. italicum and P. digitatum by causing loss of cytoplasm and distortion of the mycelia. The oils significantly altered extracellular conductivity, the release of cell constituents, and the total lipid content of P. italicum and P. digitatum. The results suggest that C. reticulata Blanco essential oils generate cytotoxicity in P. italicum and P. digitatum by disrupting cell membrane integrity and causing the leakage of cell components. PMID:24491729

  2. Mineral resource potential map of the Blanco Mountain and Black Canyon roadless areas, Inyo and Mono counties, California

    Science.gov (United States)

    Diggles, Michael F.; Blakely, Richard J.; Rains, Richard L.; Schmauch, Steven W.

    1983-01-01

    On the basis of geologic, geochemical, and geophysical investigations and a survey of mines and prospects, the mineral resource potential for gold, silver, lead, zinc, tungsten, and barite of the Blanco Mountain and Black Canyon Roadless Areas is judged to be low to moderate, except for one local area that has high potential for gold and tungsten resources.

  3. Speckle Interferometry at the Blanco and SOAR Telescopes in 2008 and 2009

    Science.gov (United States)

    Tokovinin, Andrei; Mason, Brian D.; Hartkopf, William I.

    2010-01-01

    The results of speckle interferometric measurements of binary and multiple stars conducted in 2008 and 2009 at the Blanco and Southern Astrophysical Research (SOAR) 4 m telescopes in Chile are presented. A tot al of 1898 measurements of 1189 resolved pairs or sub-systems and 394 observations of 285 un-resolved targets are listed. We resolved for the first time 48 new pairs, 21 of which are new sub-systems in close visual multiple stars. Typical internal measurement precision is 0.3 mas in both coordinates, typical companion detection capability is delta m approximately 4.2 at 0.15 degree separation. These data were obtained with a new electron-multiplication CCD camera; data processing is described in detail, including estimation of magnitude difference, observational errors, detection limits, and analysis of artifacts. We comment on some newly discovered pairs and objects of special interest.

  4. Subacute toxicity assessment of carotenoids extracted from citrus peel (Nanfengmiju, Citrus reticulata Blanco) in rats.

    Science.gov (United States)

    Xue, Feng; Li, Chen; Pan, Siyi

    2012-02-01

    The mixture of carotenoids extracted from citrus peel (Nanfengmiju, Citrus reticulata Blanco) was tested for subacute oral toxicity. In this study, dose levels of 0, 200, 500 and 2000 mg/kg body weight/day were administered by gavage to 10 Wistar rats/sex/group for 28 days. No statistically significant, dose-related effect on food consumption, food efficiency, body weight gain, clinical signs or ophthalmoscopic parameters was observed in any treatment group. Urinalysis, hematological, blood coagulation and serum biochemical examination as well as necropsy or histopathology showed that no observed adverse effect was found. These findings suggested that the No-Observed-Adverse-Effect Level for the mixture of carotenoids extracted from citrus peel was at least 2000 mg/kg body weight/day. PMID:22197624

  5. The indistrialization of Salins Peñon Blanco case lagoon Santa Maria

    Directory of Open Access Journals (Sweden)

    Xochitl Minerva Guevara Correa

    2015-01-01

    Full Text Available The Lagoon de Santa Maria is one of the twelve lagoons or salt deposits that formed part from the colonial, of a production unit known as Salinas del Peñón Blanco, the name given by its proximity to a hill, which is white in appearance; its production of salt was by solar evaporation system, brought from Europe, which was used in lakes and sea path Mexico to inland lakes in 1845 is introduced by José María Errazu this new technology understood as the systematic knowledge and components such as materials, processes, labor, the productive end, where sometimes the technology is embodied in this example as architecture. 

  6. An aerial radiological survey of the project Rio Blanco and surrounding area

    Energy Technology Data Exchange (ETDEWEB)

    Singman, L.V.

    1994-11-01

    A team from the Remote Sensing Laboratory in Las Vegas, Nevada, conducted an aerial radiation survey of the area surrounding ground zero of Project Rio Blanco in the northwestern section of Colorado in June 1993. The object of the survey was to determine if there were man-made radioisotopes on or near the surface resulting from a nuclear explosion in 1972. No indications of surface contamination were found. A search for the cesium-137 radioisotope was negative. The Minimum Detectable Activity for cesium-137 is presented for several detection probabilities. The natural terrestrial exposure rates in units of Roentgens per hour were mapped and are presented in the form of a contour map over-laid on an aerial photograph. A second team made independent ground-based measurements in four places within the survey area. The average agreement of the ground-based with aerial measurements was six percent.

  7. Efecto de tres tipos de presas vivas en la larvicultura de bagre blanco (Sorubim cuspicaudus

    Directory of Open Access Journals (Sweden)

    Martha Prieto-Guevara

    2013-11-01

    Full Text Available Objetivo. Evaluar el efecto de diferentes presas vivas en la larvicultura de bagre blanco (Sorubim cuspicaudus. Materiales y métodos. Al inicio de la alimentación exógena de Sorubim cuspicaudus, se ofreció zooplancton producido en mesocosmos (T1, zooplancton silvestre (T2 y nauplios de Artemia (T3, en concentración de 10.000 zoop/L, dos veces al día, durante seis días. Se utilizaron 18 acuarios de cinco litros de volumen útil, con densidad de 25 Larvas/L, seis réplicas por tratamiento en un diseño al azar. Se estimaron la ganancia en peso (Gp y longitud (Gl, tasa de crecimiento específico (G, sobrevivencia (S, resistencia al estrés (Re, mortalidad acumulada (Ma y mortalidad por canibalismo (Mc. Resultados. Las larvas alimentadas con mesocosmos presentaron la mayor sobrevivencia (81.3±15.9%; aunque el mejor crecimiento lo presentaron las larvas alimentadas con zooplancton silvestre (T2 las cuales presentaron la mayor mortalidad (42.0±10.7% y la menor resistencia al estrés (30.0±33.0%. El canibalismo se observó en todos los tratamientos, oscilando entre 4.0 (T2 y 14.3% (T1 sin diferencias significativas entre estos valores (p>0.05. Conclusiones. El uso de zooplancton producido bajo condiciones controladas permitió una alta sobrevivencia, adecuado desempeño y resistencia de las larvas, perfilándose como alternativa viable en la primera alimentación de bagre blanco.

  8. Evaluation of Skin Anti-aging Potential of Citrus reticulata Blanco Peel

    Science.gov (United States)

    Apraj, Vinita D.; Pandita, Nancy S.

    2016-01-01

    Background: The peel of Citrus reticulata Blanco is traditionally used as tonic, stomachic, astringent, and carminative. It is also useful in skin care. Objective: To study the anti-aging potential of alcoholic extracts of C. reticulata Blanco peel using in vitro antioxidant and anti-enzyme assays. Materials and Methods: Plant extracts were obtained by Soxhlation (CR HAE- Hot Alcoholic Extract of Citrus reticulata) and maceration method (CR CAE- Cold Alcoholic Extract of Citrus reticulata). Qualitative and quantitative phytochemical analysis was performed. Further, in vitro antioxidant, anti-enzyme, and gas chromatography-mass spectrometry (GC-MS) analyses were performed. Results: Total phenolic and flavonoid contents of CR HAE were found to be higher than CR CAE. EC50 value of CR HAE and CR CAE for 1,1-Diphenyl-2-picrylhydrazyl, Superoxide anion, and 2, 2’-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) assays were 250.33 ± 40.16 μg/ml and 254.73 ± 15.78 μg/ml, 221.27 ± 11.25 μg/ml and 354.20 ± 23.79 μg/ml, and 59.16 ± 2.17 μg/ml and 59.12 ± 6.21 μg/ml, respectively. Oxygen radical absorbance capacity values for CR HAE and CR CAE were found to be 1243 and 1063 μmoles 6-hydroxy-2,5,7,8-tetra methylchromane-2-carboxylic acid equivalent/g of substance, respectively. Anti-collagenase and anti-elastase activities were evaluated for both CR HAE and CR CAE. EC50 values of CR HAE and CR CAE for anti-collagenase and anti-elastase were 329.33 ± 6.38 μg/ml, 466.93 ± 8.04 μg/ml and 3.22 ± 0.24 mg/ml, 5.09 ± 0.30 mg/ml, respectively. CR HAE exhibited stronger anti-collagenase and anti-elastase activity than CR CAE. GC-MS analysis of CR HAE was carried out because CR HAE exhibited higher antioxidant and anti-enzyme potential than CR CAE. Conclusion: C. reticulata peel can be utilized in anti-wrinkle skin care formulations. SUMMARY Skin anti-aging potential of Citrus reticulata Blanco peel was evaluated throughIn vitro antioxidant and anti-enzyme assays

  9. Characterization of hydrology and water quality of Piceance Creek in the Alkali Flat area, Rio Blanco County, Colorado, March 2012

    Science.gov (United States)

    Thomas, Judith C.

    2015-12-07

    Previous studies by the U.S. Geological Survey identified Alkali Flat as an area of groundwater upwelling, with increases in concentrations of total dissolved solids, and streamflow loss, but additional study was needed to better characterize these observations. The U.S. Geological Survey, in cooperation with the Bureau of Land Management, White River Field Office, conducted a study to characterize the hydrology and water quality of Piceance Creek in the Alkali Flat area of Rio Blanco County, Colorado.

  10. Multielemental analysis of mineral nutrients in Nagpur Santra (Citrus reticulata Blanco) leaves by thermal neutron activation analysis

    International Nuclear Information System (INIS)

    Mn, Zn, Cu, Na, K, Fe and P have been determined in the Nagpur Santra (Citrus reticulata Blanco) leaves by thermal neutron activation analysis. The irradiated sample was dissolved in aqua regia in the presence of carriers. The β and/or γ activities of the purified elements were measured after radiochemical separations involving solvent extraction and precipitation. The values obtained for the elements are comparable to those reported in literature for Indian citrus leaves. (author)

  11. Oxidative burst inhibition, cytotoxicity and antibacterial acriquinoline alkaloids from Citrus reticulate (Blanco).

    Science.gov (United States)

    Fomani, Marie; Ngeufa Happi, Emmanuel; Nouga Bisoue, Achille; Ndom, Jean Claude; Kamdem Waffo, Alain François; Sewald, Norbert; Wansi, Jean Duplex

    2016-01-15

    Two novel acridone-quinoline alkaloids, acriquinoline A (1) and acriquinoline B (2), together with twenty-two known compounds were isolated from the methanol extract of the root of Citrus reticulata Blanco. The structures of all compounds were determined by comprehensive analyses of their 1D and 2D NMR and mass spectral (EI and ESI) data. The possible biosynthesis for the formation of above compounds is proposed, based on close examination of their structures. Compounds 1, 2, 6, 10 and 14-17 exhibited strong suppressive effect on phagocytosis response upon activation with serum opsonized zymosan in the range of IC50 0.2-10.5μM, which was tested in vitro for oxidative burst studies of whole blood. However, compounds displayed low cytotoxic activity against the human Caucasian prostate adenocarcinoma cell line PC-3, with IC50 between 30.8 and 60.5μM compared to the standard doxorubicin with IC50 0.9μM. These compounds, tested against bacteria, fungi and plant pathogen oomycetes by the paper disk agar diffusion assay, resulting in missing to low activities corresponding with MICs>1mg/mL. PMID:26711890

  12. Citrus Reticulata blanco induces apoptosis in human gastric cancer cells SNU-668.

    Science.gov (United States)

    Kim, Mi-Ja; Park, Hae Jeong; Hong, Mee Suk; Park, Hi-Joon; Kim, Min-Su; Leem, Kang-Hyun; Kim, Jeung-Beum; Kim, Youn Jung; Kim, Hye Kyung

    2005-01-01

    Citrus fruits have been known to reduce the proliferation of many cancer cells. The antiproliferative effects of Citrus reticulata Blanco (CR) extract, the immature tangerine peel, on human gastric cancer cell line SNU-668 were evaluated using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, 4,6-diamidineo-2-phenylindole staining, terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling assay, reverse transcription-polymerase chain reaction expressions of BCL-2, BAX and CASP-3 genes, caspase-3 activity, and immunocytochemistry of caspase-3. From the results of the morphological and biochemical assays, CR (50 microg/ml) increased the apoptosis of human gastric cancer cells with typical apoptotic characteristics, including morphological changes of chromatin condensation and apoptotic body formation. CR (50 microg/ml) reduced the expression of BCL-2, whereas the expression of BAX and CASP-3 was increased compared with the control group. Furthermore, caspase-3 activity and caspase-3 protein expression in the CR-treated group was significantly increased compared with that in control group. These results suggest that CR may induce the apoptosis through the caspase-3 pathway in human gastric cancer cells. PMID:15749633

  13. Forensic Hydrological Investigation of the Blanco River Flood May 2015, Wimberley, TX

    Science.gov (United States)

    Furl, C.

    2015-12-01

    A forensic hydrological investigation of a major flash flood was conducted for the Blanco River in south-central Texas. The unprecedented flood occurred during the early morning hours of May 24th leaving 12 dead in the towns of Wimberley and San Marcos. Hundreds of homes were damaged or destroyed, two reinforced concrete bridges were washed off their piers, and nearly 100 high water rescues were made the following day. The present work characterizes the meteorological setup leading to the event, describes the flood hydrology using the Gridded Surface Subsurface Hydrologic Analysis (GSSHA) model, and reports on an extensive field campaign seeking to document high water marks throughout the 1200 km2 basin. Results indicate high precipitable water values, large CAPE, and strong mid and upper level winds aided in impressive divergence over the region. This allowed for storms to continually produce heavy rainfall over the same areas. Large regions of the catchment received greater than 200 mm across the upper portion of the basin with 24 hr maximums around 330 mm. GSSHA simulations indicate good performance when compared to a stage hydrograph recorded mid-catchment. The remaining USGS gauges failed early on during the rising limb of the hydrograph. Model estimates indicate peak streamflow was approximately 5500 cms with stage values nearing 13 m as the flood wave moved through the town of Wimberley. Approximately 125 locations were examined for high water marks along the mainstem of the river using RTK GPS. Stage values ranged from 12 - 18 m.

  14. VARIATION OF THE VOLATILE CONSTITUENTS OF FRUIT PEELS OF CITRUS RETICULATA BLANCO BY PHYSICAL EFFECTS

    Directory of Open Access Journals (Sweden)

    Ali Mohammed

    2011-06-01

    Full Text Available The chemical composition of volatile oil of the fruit peels of Citrus reticulata Blanco (Rutaceae of Delhi Region has been studied under different physical factors. The oil was composed mainly monoterpenes (99.1 % constituting l-limonene (92.4 %, -terpene (2.6 % and -phellandrene (1.8 %. The volatile oil after heating at 110C for 24 hours, exposing to sunlight for 48 hours and UV light for 24 hours and after treatment with silica gel and alumina neutral for 24 hours contained the above three major components in varied amounts. -Pinene, -phellandrene, l-limonene, - terpinene and l-linalool were detected in all oil samples. -Thujene and trans--caryophyllene were produced when the oil was treated with silica gel for 24 hours. Trans-Verbenol was determined when the oil was heated at 110C for 24 hours and exposed to sunlight for 48 hours. Terpen-4-ol disappeared in all the samples except exposition to the sunlight. Cis--farnesene, present in the fruit peels in trace amount, was not detected in other oil samples after impact of physical factors.

  15. Montes blancos, baldíos y realengos: aproximación a tres tipologías tradicionales de montes públicos en la provincia de Zaragoza

    OpenAIRE

    Pérez-Soba Díez del Corral, Ignacio; Solá Martín, Miguel Ángel

    2005-01-01

    The article analyses the meaning of three terms for common land that are very common in Aragon and other parts of Spain and which correspond to obsolete legislation or traditional names, namely, "montes blancos", "baldíos" and "realengos". The term "montes blancos" has often been used as a synonym of communal land or deforested land ('moorlands'). Regarding the first of these identifications, the article concludes that, in Aragon, the "montes blancos" arise both from lands that were originall...

  16. Crescimento de frutos da tangerineira 'Poncã' (Citrus reticulata Blanco Fruit gowth of 'Ponkan' mandarin

    Directory of Open Access Journals (Sweden)

    Marlon Dutra Degli Esposti

    2008-09-01

    Full Text Available Este trabalho foi realizado com o objetivo de avaliar o desenvolvimento de frutos da tangerineira Poncã, desde o pegamento até a colheita dos frutos, em Viçosa - Minas Gerais. O desenvolvimento do fruto seguiu uma curva do tipo sigmóide simples, sendo a fase I compreendida da antese até o 85º dia após o pleno florescimento, com um período de transição na fase II, que foi até o 101º dia após o pleno florescimento. A fase II teve início logo após a fase de transição, prolongando-se até o 251º dia após o pleno florescimento. A fase III, de amadurecimento do fruto, iniciou-se no 251º dia após o pleno florescimento e prolongou-se até a colheita dos frutos, a qual foi realizada no 276º dia após o pleno florescimento.The objective of this work was to evaluate the fruit development of Ponkan mandarin (Citrus reticulata Blanco. Fruit development followed a simple sigmoid curve, with phase I extending from anthesis to the 85th day after full flowering, with a transition period to phase II that lasted up to the 101st day after full flowering. Phase II began soon after the transition phase, extending up to the 251st day after full flowering. Phase III, fruit ripening, began at the 251st day after full flowering and it was prolonged until harvest, which was carried out at the 276th day after full flowering.

  17. Project Rio Blanco - Part II: Production test data and preliminary analysis of top chimney/cavity

    International Nuclear Information System (INIS)

    The re-entry drilling established communication with the top Rio Blanco detonation region at a depth of 1704 m, or about 76 m above the top detonation centre. A total of 2.8 x 106m3(97 x 106ft3) of dry gas at standard conditions has now been produced during two separate test periods. Radioactive and chemical analysis of this gas and the modelling of the stimulated reservoir shows the following main result: (1) No permeable connection exists between the top and the middle detonation regions, since none of the tracer incorporated in the centre explosive canister was detected in the gas produced. As a consequence, results for the top detonation region only are available at this time; (2) The initial cavity radius is deduced to be 20 m(66 ft), or well within expectations; (3) Integration of the 85Kr produced indicates a yield of 34+-3kt for the top explosive; (4) Of the approximately 1000 Ci of tritium produced in the top explosion region, about 5% is incorporated in the gas phase, (5) Pressure draw-down and build-up data are best reproduced by a two-layer reservoir model showing stimulated permeabilities about 10 and 30 times original formation permeabilities, and extending to a distance of about three cavity radii from the well bore; (6) The capacity of the reservoir intercepted by the top explosive is deduced to be about 0.2 mdarcy.m(0.73 mdarcy.ft), as contrasted with pre-shot estimates ranging from 1.3 to 2.3 mdarcy.m(4.1 - 7.6 mdarcy.ft). The reason for this discrepancy is not resolved at this time. Additional subsurface investigations of the other detonation regions as well as a re-evaluation of the initial reservoir properties are in progress. (author)

  18. ESTABILIZACIÓN DEL PIGMENTO AZUL ULTRAMAR EN CEMENTO PÓRTLAND BLANCO

    Directory of Open Access Journals (Sweden)

    JUAN GUILLERMO MORALES RENDÓN

    2008-01-01

    Full Text Available Se prepararon muestras de cemento azul a partir de cemento Pórtland Blanco Tipo III, según Normas Técnicas Colombianas NTC y pigmento Azul Ultramar U-601 adicionado en un 2% en peso del cemento. El cemento se caracterizó químicamente por fluorescencia de rayos X, y físicamente mediante los ensayos típicos según las NTC. Al pigmento y al cemento se les determinaron sus coordenadas cromáticas por espectrofotometría mediante el sistema CIELAB. Se eligieron varios aditivos y adiciones (entre orgánicos, inorgánicos y minerales para ser adicionados al cemento azul en diferentes dosificaciones en peso. Tanto a las muestras de cemento azul sin aditivo como a aquellas con las diferentes dosificaciones de aditivos, se les determinaron sus características físicas de desempeño y coordenadas cromáticas a diferentes edades de curado en agua saturada con cal (1, 3, 7 y 28 días. Adicionalmente se les determinó el color en las mismas edades a especimenes curados a las condiciones ambientales del laboratorio. Se presentó decoloración total en todos aquellos cementos adicionados con aditivos orgánicos, y decoloración parcial en los cementos adicionados con algunos de los aditivos inorgánicos y ciertas adiciones minerales. Tanto los tiempos de fraguado, como las resistencias a la compresión y demás variables de desempeño experimentaron cambios significativos, en algunos casos positivos y en otros negativos, como consecuencia y efecto de las diferentes dosificaciones utilizadas de cada uno de los aditivos.

  19. Caracterización agronómica una accesión de Swinglea glutinosa (Blanco) Merr, (Rutaceae)

    OpenAIRE

    Rafael Jiménez Villasuso; Fressy Pérez Campo; Marta Rosa Hernández Zaldívar; Víctor Ramón Fuentes Fiallo; Josefa Bárbara Velazquez Palenzuela

    2015-01-01

    RESUMEN La familia Rutaceae abarca un gran número de géneros y especies. De ellos, Citrus, Poncirus y Fortunella son los géneros más explotados comercialmente a nivel mundial, sin embargo, hay otros menos abordados, como el género Swinglea que posee una sola especie: S. glutinosa (Blanco) Merr. Con el objetivo de caracterizar desde el punto de vista agronómico esta especie por su de importancia como recurso genético y posterior utilización como patrón en la producción citrícola. Se evalua...

  20. Caracterización agronómica de una accesión de Swinglea glutinosa (Blanco) Merr, (Rutaceae)

    OpenAIRE

    Rafael jiménez Villasuso; Fressy Pétrez Campo; Marta Rosa fernández Zaldívar; Víctor Ramón Fuentes Fiallo; Josefa Bárbara Velázquez Palenzuela

    2015-01-01

    La familia Rutaceae abarca un gran número de géneros y especies. De ellos, Citrus, Poncirus y Fortunella son los géneros más explotados comercialmente a nivel mundial, sin embargo, hay otros menos abordados, como el género Swinglea que posee una sola especie: S. glutinosa (Blanco) Merr. Con el objetivo de caracterizar desde el punto de vista agronómico esta especie por su de importancia como recurso genético y posterior utilización como patrón en la producción citrícola. Se evaluaron las cara...

  1. Palaeoenvironment reconstruction, volcanic evolution and geochronology of the Cerro Blanco subcomplex, Nevados de Chillan volcanic complex, Central Chile

    OpenAIRE

    Mee, Katy; Gilbert, Jennie S.; McGarvie, David W.; Naranjo, Jose A.; Pringle, Malcolm S.

    2009-01-01

    Nevados de Chillán Volcanic Complex, central Chile, has been active for at least 640 ka—a period spanning a number of glacial and interglacial periods. Geologic mapping, radiometric dating and geochemical analysis have identified six new volcanic units and produced four new 40Ar/39Ar ages for Cerro Blanco, the northern subcomplex of Nevados de Chillán volcano. Compositions range from dacite to basaltic-andesite and a new geologic map is presented. Examination of lava fracture structures on bo...

  2. A search for flares and mass ejections on young late-type stars in the open cluster Blanco-1

    OpenAIRE

    Leitzinger, M.; Odert, P.; Greimel, R.; Korhonen, H.; Guenther, E. W.; Hanslmeier, A.; H. Lammer; Khodachenko, M. L.

    2014-01-01

    We present a search for stellar activity (flares and mass ejections) in a sample of 28 stars in the young open cluster Blanco-1. We use optical spectra obtained with ESO's VIMOS multi-object spectrograph installed on the VLT. From the total observing time of $\\sim$ 5 hours, we find four H$\\alpha$ flares but no distinct indication of coronal mass ejections (CMEs) on the investigated dK-dM stars. Two flares show "dips" in their light-curves right before their impulsive phases which are similar ...

  3. Características tectónicas y tectosedimentarias del hemigraben Rincón Blanco, Cuenca Cuyana: una síntesis Tectonic and tectosedimentary characteristics of the Rincón Blanco halfgraben: a synthesis

    Directory of Open Access Journals (Sweden)

    Silvia Barredo

    2010-03-01

    Full Text Available Durante el Triásico, el margen de Gondwana se caracterizó por la presencia de cuencas extensivas de dirección noroeste. La cuenca Cuyana está compuesta por hemigrábenes donde se acumularon espesas secuencias clásticas y piroclásticas que en algunos casos alcanzaron los 3.000 m de espesor. En el caso particular de la subcuenca Rincón Blanco, uno de los depocentros más septentrionales de la cuenca, está limitado por una falla normal del tipo de crecimiento y de diseño en-échèlon en planta. La presencia de depocentros discretos a lo largo del rumbo de la misma sugiere que ésta evolucionó a través de la interacción de segmentos menores separados por una zona de transferencia o bien por la propagación de la misma a través de uno de sus extremos o tips. El relleno estuvo enmarcado por un fuerte control tectónico que le imprimió a las secuencias rasgos distintivos. Así, es posible afirmar que la arquitectura de las secuencias resulta de la geometría y de la historia del desplazamiento de la falla de borde o falla maestra. Utilizando el análisis litológico y los datos estructurales, el relleno se dividió en paquetes de secuencias genéticamente relacionadas o unidades tectonoestratigráficas separadas por discordancias regionales. Con estos conceptos fue posible reconstruir la geometría de margen activo del hemigraben Rincón Blanco y la historia de su relleno, en una región afectada por fuerte deformación compresiva andina. Además, estas herramientas conceptuales permitieron establecer preliminarmente la relación entre la Unidad Marachemill y el Grupo Rincón Blanco, históricamente consideradas como un único paquete de secuencias.The Gondwana margin contained some Triassic basins that together constitute a regionally northwest-trending extensional system. The Cuyana rift Basin is internally composed of a family of hemigrabens filled with thick piles of sedimentary clastic and epiclastic rocks that can reach more than

  4. Evaluación microbiológica y sensorial de fermentados de pozol blanco, con cacao (Theobroma cacao) y coco (Cocos nucifera)

    OpenAIRE

    Román Jiménez Vera; Nicolás González Cortés; Arturo Magaña Contreras; Alma Corona Cruz

    2010-01-01

    El pozol es una bebida de maíz que se consume en el sureste de México y en algunos países de Centroamérica. Se puede consumir recién elaborado o fermentado. Tradicionalmente se consume solo (pozol blanco), aunque también es común agregarle cacao o coco. En este trabajo se evaluaron cambios microbiológicos durante la fermentación natural a temperatura ambiental, de tres tipos de pozol: blanco, con cacao y coco. La concentración de bacterias coliformes disminuyó a partir del tercer día de ferme...

  5. DESARROLLO TECNOLÓGICO PARA ELABORAR VINO BLANCO COMÚN EN MISIONES, CON EVALUACIÓN ECONÓMICA A ESCALA INDUSTRIAL

    OpenAIRE

    Miño Valdés, Juan Esteban

    2013-01-01

    El objetivo de este trabajo fue desarrollar una tecnología sustentable a escala industrial para elaborar vino blanco común, con uvas no viníferas cultivadas en Misiones. Este proyecto tecnológico se inició a escala laboratorio, continuó en planta piloto y proyectó a escala industrial. Se consideró como unidad productiva a 12 familias rurales con 27 ha de viñedo cada una. Las 8 etapas seguidas con metodología inductiva y deductiva fueron: La elaboración de vino blanco seco a escala laboratorio...

  6. Aspectos geológicos y geotécnicos preliminares de la fundación de la presa del Arroyo Blanco, Tandil

    OpenAIRE

    Giaconi, Luis Mario; Calvetty Amboni, Boris; Giaconi, Mario Nicolás

    2012-01-01

    El presente resumen trata sobre los aspectos geológicos y geotécnicos preliminares de la fundación de la presa A° Blanco ubicada al sur de la Ciudad de Tandil, Provincia de Buenos Aires. El propósito de la presa es contener y regular las crecientes torrenciales que recurrentemente provocan anegamientos en la ciudad ubicada aguas abajo. El área de proyecto comprende la cuenca hidrográfica del arroyo que desemboca precisamente en el denominado entubado del A° Blanco, desagüe pluvial subterráneo...

  7. Metalliferous sediment and a silica-hematite deposit within the Blanco fracture zone, Northeast Pacific

    Science.gov (United States)

    Hein, J.R.; Clague, D.A.; Koski, R.A.; Embley, R.W.; Dunham, R.E.

    2008-01-01

    A Tiburon ROV dive within the East Blanco Depression (EBD) increased the mapped extent of a known hydrothermal field by an order of magnitude. In addition, a unique opal-CT (cristobalite-tridymite)-hematite mound was discovered, and mineralized sediments and rock were collected and analyzed. Silica-hematite mounds have not previously been found on the deep ocean floor. The light-weight rock of the porous mound consists predominantly of opal-CT and hematite filaments, rods, and strands, and averages 77.8% SiO2 and 11.8% Fe2O3. The hematite and opal-CT precipitated from a low-temperature (???115?? C), strongly oxidized, silica- and iron-rich, sulfur-poor hydrothermal fluid; a bacterial mat provided the framework for precipitation. Samples collected from a volcaniclastic rock outcrop consist primarily of quartz with lesser plagioclase, smectite, pyroxene, and sulfides; SiO2 content averages 72.5%. Formation of these quartz-rich samples is best explained by cooling in an up-flow zone of silica-rich hydrothermal fluids within a low permeability system. Opal-A, opal-CT, and quartz mineralization found in different places within the EBD hydrothermal field likely reflects decreasing silica saturation and increasing temperature of the mineralizing fluid with increasing silica crystallinity. Six push cores recovered gravel, coarse sand, and mud mineralized variously by Fe or Mn oxides, silica, and sulfides. Total rare-earth element concentrations are low for both the rock and push core samples. Ce and Eu anomalies reflect high and low temperature hydrothermal components and detrital phases. A remarkable variety of types of mineralization occur within the EBD field, yet a consistent suite of elements is enriched (relative to basalt and unmineralized cores) in all samples analyzed: Ag, Au, S, Mo, Hg, As, Sb, Sr, and U; most samples are also enriched in Cu, Pb, Cd, and Zn. On the basis of these element enrichments, the EBD hydrothermal field might best be described as a base

  8. Influence of volatile constituents of fruit peels of Citrus reticulata Blanco on clinically isolated pathogenic microorganisms under In-vitro

    Institute of Scientific and Technical Information of China (English)

    Husain Shahnaz Sultana; Mohammed Ali; Bibhu Prasad Panda

    2012-01-01

    Objective: To investigate the antimicrobial activity of volatile constituents of fruit peels of Citrus reticulata Blanco on clinically isolated pathogenic microorganisms. Methods: Extraction of volatile oil was carried out by Clevenger’s apparatus. Volatile chemical components were measured by GC-MS. Antimicrobial activity was carried by Agar well diffusion assay with reference to standard fluconazole and tetracycline. Results: The chemical composition of volatile oil of the fruit peels of Citrus reticulata Blanco (Rutaceae) of Delhi Region was composed mainly monoterpenes (99.1 %) constituting l-limonene (92.4 %), γ-terpene (2.6 %) andβ-phellandrene (1.8 %). The volatile oil showed antibacterial and antifungal activities against the clinically isolated pathogenic microbial strains Escherichia coli, Staphylococcus aureus, Aspergillus flavus, Aspergillus niger, Aspergillus fumigatus and Candida albicans under in vitro condition. Conclusions: The potential antimicrobial activity of volatile oil present in fruit peels of C. reticulata can be useful for treatment of skin disorder and/or in aroma. Therapy, it can be incorporated into cosmetic formulations.

  9. Radionuclide Migration at the Rio Blanco Site, A Nuclear-stimulated Low-permeability Natural Gas Reservoir

    Energy Technology Data Exchange (ETDEWEB)

    Clay A. Cooper; Ming Ye; Jenny Chapman; Craig Shirley

    2005-10-01

    The U.S. Department of Energy and its predecessor agencies conducted a program in the 1960s and 1970s that evaluated technology for the nuclear stimulation of low-permeability gas reservoirs. The third and final project in the program, Project Rio Blanco, was conducted in Rio Blanco County, in northwestern Colorado. In this experiment, three 33-kiloton nuclear explosives were simultaneously detonated in a single emplacement well in the Mesaverde Group and Fort Union Formation, at depths of 1,780, 1,899, and 2,039 m below land surface on May 17, 1973. The objective of this work is to estimate lateral distances that tritium released from the detonations may have traveled in the subsurface and evaluate the possible effect of postulated natural-gas development on radionuclide migration. Other radionuclides were considered in the analysis, but the majority occur in relatively immobile forms (such as nuclear melt glass). Of the radionuclides present in the gas phase, tritium dominates in terms of quantity of radioactivity in the long term and contribution to possible whole body exposure. One simulation is performed for {sup 85}Kr, the second most abundant gaseous radionuclide produced after tritium.

  10. Physical Analysis of the Complex Rye (Secale cereale L.) Alt4 Aluminium (Aluminum) Tolerance Locus Using a Whole-Genome BAC Library of Rye cv. Blanco

    Science.gov (United States)

    Rye is a diploid crop species with many outstanding qualities, and is also important as a source of new traits for wheat and triticale improvement. Here we describe a BAC library of rye cv. Blanco, representing a valuable resource for rye molecular genetic studies. The library provides a 6 × genome ...

  11. Definition of a mobilizing volume of sediment in a valley interested by volcanic eruption: Rio Blanco valley (Chile)

    Science.gov (United States)

    Oss-Cazzador, Daniele; Iroumé, Andrés; Picco, Lorenzo

    2016-04-01

    Volcanic explosive activity can strongly affect the riverine environments. Deposition of tephra, pyroclastic and hyperconcentrated flows along both the valley bottom and hillslopes can radically change the environmental morphology. Accumulation and transport of pyroclastic material can increase hazards and risks for anthropic activities. The aims of this research are to evaluate and quantify the amount of erodible sediment that can be transported along a gravel bed river affected by a volcanic eruption. The Rio Blanco valley (Chile) was upset by the plinian-type eruption of Chaiten volcano in 2008. The great amount of tephra released in the initial phase and the subsequent pyroclastic flows, accumulated up to 8 m of sediment over a great portion of the Rio Blanco valley. Using aerial photographs was possible to define the extension of vegetated zones affected by the eruption. The area was interested by a high mortality of vegetation, as confirmed by field surveys. Dendrometric measurements permitted to quantify the volume of wood and observe that renewal and herbal layer are almost absent, determining low soil cohesion and easier erosion by superficial and river erosion processes. Analysis of sediment accumulation allowed quantifying the volume of sediment that can be transported downstream. The analyses were carried out considering 7 km-long a reach, from the river mouth to the confluence between Caldera creek and Rio Blanco. After the eruption, was possible to define as a total area of about 2.19 km2 was affected by tephra deposition, the 40% (0,87 km2) was eroded by flows, while 60% (1,32 km2) is still present and composed by tephra, buried large wood (LW) and dead standing trees. Considering an average high of 5 m, the potential erodible sediment is around 6,5 x 106 m3, moreover there is a potential amount of about 7,3 x 104 m3 of LW that can be transported towards mouth. These analyses can be useful to better define the management plan for the river delta. In

  12. Citrus Essential Oil of Nigeria Part IV: Volatile Constituents of Leaf Oils of Mandarins (Citrus Reticulata Blanco From Nigeria

    Directory of Open Access Journals (Sweden)

    Adeleke A. Kasali

    2010-07-01

    Full Text Available The chemical composition of hydrodistilled oils obtained from the leaves of six Citrus reticulata Blanco (mandarin cultivars grown in Nigeria were examined by GC and GC/MS, the result of their chemical composition were further submitted to cluster analysis. Fifty seven constituents were characterized accounting for 88.2 - 96.7% of the total oils. Sabinene, g -terpinene, P-cymene, d -3-carene and (E- b -ocimene were observed in great variability in all the oils. Other constituents include linalool, myrcene, terpinen-4-ol and cis-sabinenehydrate. In addition, limonene, terpinolene, b -pinene, and a -pinene were also detected in appreciable concentrations. b -sinensal and a -sinensal were isolated by preparative GC and characterized by one- and two-dimensional NMR techniques.

  13. Geomorphic change along a gravel bed river affected by volcanic eruption: Rio Blanco - Volcan Chaiten (South Chile)

    Science.gov (United States)

    Picco, Lorenzo; Ravazzolo, Diego; Ulloa, Hector; Iroumé, Andres; Aristide Lenzi, Mario

    2014-05-01

    Gravel bed rivers are environments shaped by the balance of flow, sediment regimes, large wood (LW) and vegetation. Geomorphic changes are response to fluctuations and changes of runoff and sediment supply involving mutual interactions among these factors. Typically, many natural disasters (i.e. debris flows, floods and forest fires) can affect the river basin dynamics. Explosive volcanic eruptions present, instead, the potential of exerting severe impacts as, for example, filling river valleys or changing river network patterns thanks to massive deposition of tephra and volcanic sediment all over the main channel and over the basin. These consistent impacts can strongly affect both hydrology and sediment transport dynamics, all over the river system, producing huge geomorphic changes. During the last years there has been a consistent increase in the survey technologies that permit to monitor geomorphic changes and to estimate sediment budgets through repeat topographic surveys. The calculation of differences between subsequent DEMs (difference of DEMs, DoD) is a commonly applied method to analyze and quantify these dynamics. Typically the higher uncertainty values are registered in areas with higher topographic variability and lower point density. This research was conducted along a ~ 2.2 km-long sub-reach of the Blanco River (Southern Chile), a fourth-order stream that presents a mainly rainfall regime with winter peak flows. The May 2008 Chaitén volcanic eruption strongly affected the entire Rio Blanco basin. The entire valley was highly exposed to the pyroclastic and fluvial flows, which affected directly a consistent area of evergreen forests. Extreme runoff from the upper Blanco catchment aggraded the channel and deposited up to several meters of tephra, alluvium, and LW along the entire river system. Aims of this contribution are to define and quantify the short term evolution of the Blanco River after the big eruption event and a subsequent consistent

  14. Caracterización agronómica de una accesión de Swinglea glutinosa (Blanco Merr, (Rutaceae

    Directory of Open Access Journals (Sweden)

    Rafael jiménez Villasuso

    2015-06-01

    Full Text Available La familia Rutaceae abarca un gran número de géneros y especies. De ellos, Citrus, Poncirus y Fortunella son los géneros más explotados comercialmente a nivel mundial, sin embargo, hay otros menos abordados, como el género Swinglea que posee una sola especie: S. glutinosa (Blanco Merr. Con el objetivo de caracterizar desde el punto de vista agronómico esta especie por su de importancia como recurso genético y posterior utilización como patrón en la producción citrícola. Se evaluaron las características físico-químicas de los frutos. Para ello se analizaron las variables: masa, diámetro y altura del fruto, número y masa de las semillas, sólidos solubles totales, acidez, índice de madurez, contenido de vitamina C y algunos caracteres cualitativos de la morfología del árbol como: estructura del árbol, formas del fruto, de las hojas y la semilla. Los resultados obtenidos mostraron que es un árbol rustico, adaptándose bien a nuestras condiciones, además presenta un alto número de semillas por fruto. Los resultados obtenidos mostraron que es un árbol rustico, adaptándose bien a nuestras condiciones, además presenta un alto número de semillas por fruto, lo cual es de gran importancia a la hora de seleccionar un patrón para su introducción a la práctica productiva. Agronomic characterization of an accession of Swinglea glutinosa (Blanco Merr, (Rutaceae

  15. Ojo blanco (obl : un gene marcador del grupo de ligamiento IV en Tribolium castaneum Herbst Ojo blanco (obl: un gene marcador del grupo de ligamiento IV en Tribolium castaneum Herbst

    Directory of Open Access Journals (Sweden)

    Nuñez Fernando

    1988-06-01

    Full Text Available

    Some genetic aspects of a spontaneous mutation in T. castaneum, discovered in the Department of Biology of National University of Colombia (Bogota, were studied. The mutant gene christened "ojo blanco" (obl, is recessive autosomic, of excellent viability, complete penetrance and variable expression. The gene is phenotipically characterized by a depigmentation of the compound eyes and can be observed from the larval stage. Linkage tests with marker mutants for different groups were carried out. The marker "sooty", of the linkage group IV, gave positive results. The distance was estimated from 2843 descendants obtained from backcrosses in repulsion plase and 1630 in coupling phase. This distance was worked out as 15.64 ± 0.92 units between obl ands. It was not possible to determine if obl is on the left or the right hand side of s. Nor discrepancies between sexes, neither between phases were found in the recombination frequencies for the region between the two loci of chromosome IV.

    Se estudiaron algunos aspectos genéticos de una mutación espontanea en T. casteneum, descubierta en el Departamento de Biología de la Universidad Nacional de Colombia (Bogotá. EI gene mutante llamado "ojo blanco" (obl es autosómico recesivo, de excelente viabilidad, penetrancia completa y expresividad variable. Fenotípicamente se caracteriza por una despigmentación de los ojos compuestos; puede observarse desde el estado de larva. Se le hicieron pruebas de ligamiento con marcadores para diferentes grupos. Se obtuvieron resultados positivos con el marcador "sooty" del grupo de ligamiento IV. La  distancia se calcu1ó a partir de 2.843 descendientes de retrocruzas en posición de repulsión y 1.630 descendientes de retrocruzas en posición de acoplamiento. Esta distancia fue de 15.ó4 ± 0.92 unidades entre obl ys. No se pudo determinar si obl esta a la izquierda 0 a la

  16. "Tres ataúdes blancos" de Antonio Ungar: juegos de falsedad y discursos de poder en la América Latina contemporánea

    Directory of Open Access Journals (Sweden)

    Felipe Cammaert

    2012-10-01

    Full Text Available Tres Ataúdes Blancos, novela del escritor colombiano Antonio Ungar, propone una lecturanovedosa de la realidad latinoamericana adoptando la forma de una sátira política. Esta novela escenificalos juegos de poder en Miranda, país imaginario que es una suma de los abusos del ejercicio político en elcontinente a lo largo de su historia. Para ello, elabora una profunda reflexión en torno a la falsedad y laalteridad. Tres ataúdes blancos plantea una relectura del canon latinoamericano donde la representación dela realidad política ocupa un lugar preponderante en el universo ficcional.

  17. La evaluación de los recursos hídricos en el Libro Blanco del Agua en España

    OpenAIRE

    Estrela, Teodoro; Cabezas Calvo-Rubio, Francisco; Estrada Lorenzo, Federico

    1999-01-01

    En el presente artículo se describe brevemente el modelo hidrológico distribuido utilizado en el Libro Blanco del Agua en España para la evaluación de los recursos hídricos en régimen natural. Se tiene la intención de presentar en sucesivos números de esta Revista otros instrumentos o procedimientos específicamente desarrollados para el Libro Blanco que se estima pueden presentar interés técnico o científico. El objetivo de este artículo, y de los posibles artículos posteriores, es describir ...

  18. Caracterización agronómica una accesión de Swinglea glutinosa (Blanco Merr, (Rutaceae

    Directory of Open Access Journals (Sweden)

    Rafael Jiménez Villasuso

    2015-05-01

    Full Text Available RESUMEN La familia Rutaceae abarca un gran número de géneros y especies. De ellos, Citrus, Poncirus y Fortunella son los géneros más explotados comercialmente a nivel mundial, sin embargo, hay otros menos abordados, como el género Swinglea que posee una sola especie: S. glutinosa (Blanco Merr. Con el objetivo de caracterizar desde el punto de vista agronómico esta especie por su de importancia como recurso genético y posterior utilización como patrón en la producción citrícola. Se evaluaron las características físico-químicas de los frutos. Para ello se analizaron las variables: masa, diámetro y altura del fruto, número y masa de las semillas, sólidos solubles totales, acidez, índice de madurez, contenido de vitamina C y algunos caracteres cualitativos de la morfología del árbol como: estructura del árbol, formas del fruto, de las hojas y la semilla. Los resultados obtenidos mostraron que es un árbol rustico, adaptándose bien a nuestras condiciones, además presenta un alto número de semillas por fruto. Los resultados obtenidos mostraron que es un árbol rustico, adaptándose bien a nuestras condiciones, además presenta un alto número de semillas por fruto, lo cual es de gran importancia a la hora de seleccionar un patrón para su introducción a la práctica productiva. Agronomic characterization of an accession of Swinglea glutinosa (Blanco Merr, (Rutaceae ABSTRACT The Rutaceae family includes a large number of genera and species. Of these, Citrus, Poncirus and Fortunella are the genres most worldwide exploited commercially, but there are other less discussed, such as gender Swinglea having a single species: S. glutinosa (Blanco Merr. In order to characterize from an agricultural point of view this kind of importance as their genetic resource and subsequent use as a standard in citrus production. The physicochemical characteristics of the fruits were evaluated. mass, diameter and height of fruit number and seed mass

  19. Large wood budget assessment along a gravel bed river affected by volcanic eruption: the Rio Blanco study case (Chile).

    Science.gov (United States)

    Oss-Cazzador, Daniele; Iroume, Andres; Lenzi, Mario; Picco, Lorenzo

    2016-04-01

    Wood in riverine environments exerts different functions on ecological and geomorphic settings, influencing morphological processes, and increasing risks for sensitive structures. Large wood (LW) is defined as wood material, dead or alive, larger than 10 cm in diameter and 1 m in length. Natural hazards can strongly increase the presence of LW in waterways and flood events can transport it affecting the ecosystem and landscape. This study aims to increase the knowledge of wood budget, considering the effects of two subsequent slight flood events along a sub-reach of the Rio Blanco gravel bed river , in Chilean Patagonia, strongly affected by the eruption of Chaiten volcano in 2008. The volcanic eruption affected almost 3,5 km 2 of evergreen forest on the southern (left) bank, because of primary direct effects from pyroclastic density currents and lahar-floods that caused deposition up to 8 m of reworked tephra, alluvium, and wood on floodplains and terrace along the Rio Blanco. After the eruption, there was a considerable increase of LW into the main channel: into the bankfull channel, volume exceeds 100 m 3 /ha. Field surveys were carried out in January and March 2015, before and after two slight flood events (Recurrence Intervals lower than 1 year). The pre-event phase permitted to detect and analyze the presence of LW into the study area, along a 80 m-long reach of Rio Blanco (7500 m 2 . Every LW element was manually measured and described, a numbered metal tag was installed, and the position was recorded by GPS device. In January, there was a total amount of 113 m 3 /ha, 90% accumulated in LW jams (WJ) and 10% as single logs. The LW was characterized by mean dimensions of 3,36 m height, 0,25 m diameter and 0,26 m 3 volume, respectively. The WJ are characterized by wide range of dimension: volume varies from 0,28 m 3 to 672 m 3 , length from 1,20 m to 56 m, width from 0,40 m to 8,70 m and height from 0,20 m to 3 m, respectively. After the flood events, field

  20. An improved determination of the lithium depletion boundary age of Blanco 1 and a first look on the effects of magnetic activity

    Energy Technology Data Exchange (ETDEWEB)

    Juarez, Aaron J.; Stassun, Keivan G. [Department of Physics, Fisk University, Nashville, TN 37208 (United States); Cargile, Phillip A. [Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235 (United States); James, David J., E-mail: a.juarez@vanderbilt.edu [Cerro Tololo Inter-American Observatory, Casilla 603, La Serena (Chile)

    2014-11-10

    The lithium depletion boundary (LDB) is a robust method for accurately determining the ages of young clusters, but most pre-main-sequence models used to derive LDB ages do not include the effects of magnetic activity on stellar properties. In light of this, we present results from our spectroscopic study of the very-low-mass members of the southern open cluster Blanco 1 using the Gemini-North Telescope, program IDs: GN-2009B-Q-53 and GN-2010B-Q-96. We obtained Gemini Multi-Object Spectrograph spectra at intermediate resolution for cluster candidate members with I ≈ 13-20 mag. From our sample of 43 spectra, we find 14 probable cluster members by considering proximity to the cluster sequence in an I/I – K {sub s} color-magnitude diagram, agreement with the cluster's systemic radial velocity, and magnetic activity as a youth indicator. We systematically analyze the Hα and Li features and update the LDB age of Blanco 1 to be 126{sub −14}{sup +13} Myr. Our new LDB age for Blanco 1 shows remarkable coevality with the benchmark Pleiades open cluster. Using available empirical activity corrections, we investigate the effects of magnetic activity on the LDB age of Blanco 1. Accounting for activity, we infer a corrected LDB age of 114{sub −10}{sup +9} Myr. This work demonstrates the importance of accounting for magnetic activity on LDB inferred stellar ages, suggesting the need to reinvestigate previous LDB age determinations.

  1. Soil Ecological Suitability of Pogostemon cablin (Blanco) Benth.in Guangdong Province%广东省广藿香土壤生态适宜性评价

    Institute of Scientific and Technical Information of China (English)

    郭治兴; 柴敏; 王静; 魏秀国

    2011-01-01

    [目的]分析广藿香的适宜生长区域,为确定广藿香种植产区以及合理规划生产布局提供科学依据.[方法]通过在作物环境需求数据库--Ecocrop 1 中筛选重点土壤生态环境因子作为评价指标,以地理信息系统空间分析技术为手段,对广藿香的土壤生态适宜性进行分析和评价.[结果]在珠江三角洲以及粤东粤西的沿海区域仍然存在适宜广藿香生长的农地.[结论]本方法是一种方便快捷的进行中药材道地性产地评价和选择的技术.%Objective To provide scientific evidence for the cultivation area for Pogostemon cablin (Blanco)Benth. through analyzing the appropriate producing areas of Pogostemon cablin (Blanco) Benth.. Methods With the main soil environment factors which were screened from Ecocropl database as the evaluation indexes, the soil ecological suitability of Pogostemon cablin (Blanco) Benth. in Guangdong province was analyzed and evaluated by GIS spatial analysis techniques. Results The Pearl River delta as well as the coastal areas of western and eastern Guangdong is still suitable for the growth of Pogostemon cablin (Blanco) Benth.. Conclusion The established method is convenient and efficient for the evaluation and selection of producing areas for genuine traditional Chinese medicinal material.

  2. An Improved Determination of the Lithium Depletion Boundary Age of Blanco 1 and a First Look on the Effects of Magnetic Activity

    CERN Document Server

    Juarez, Aaron J; James, David J; Stassun, Keivan G

    2014-01-01

    The Lithium Depletion Boundary (LDB) is a robust method for accurately determining the ages of young clusters, but most pre-main-sequence models used to derive LDB ages do not include the effects of magnetic activity on stellar properties. In light of this, we present results from our spectroscopic study of the very low-mass members of the southern open cluster Blanco~1 using the Gemini-North telescope, program IDs: GN-2009B-Q-53 and GN-2012B-Q-96. We obtained GMOS spectra at intermediate resolution for cluster candidate members with $I$$\\approx$13--20 mag. From our sample of 43 spectra, we find 14 probable cluster members by considering proximity to the cluster sequence in an $I/I-K\\rm_s$ color-magnitude diagram, agreement with the cluster's systemic radial velocity, and magnetic activity as a youth indicator. We systematically analyze the H$\\alpha$ and Li features and update the LDB age of Blanco~1 to be $126^{+13}_{-14}$ Myr. Our new LDB age for Blanco 1 shows remarkable coevality with the benchmark Pleiad...

  3. The growth of Neck orange (Citrus reticulata Blanco scion on seedling and cutting of trifoliate orange hybrid rootstocks

    Directory of Open Access Journals (Sweden)

    Thavorat, S.

    2003-11-01

    Full Text Available The growth of Neck orange (Citrus reticulata Blanco on seedling and cutting of trifoliate orange hybrid rootstocks was studied at the Department of Plant Science, Faculty of Natural Resources, Prince of Songkla University in order to select the appropriate rootstock. The stem cross section, growth characteristic and isozyme pattern of Neck orange scion were investigated. One-year-old seedlings and cuttings (both with 0.3-0.4 mm stem diameter of Troyer citrange, Swingle citrumelo and Neck orange were used as root stock for grafting with Neck orange scions. The diameter of upper and lower graft union, number of branches and leaves, height, root length, shoot and root dry weight and shoot: root dry weight ratio of grafted plants were measured at 24 weeks after grafting. The results showed that the structure of stem cross section of Troyer citrange and Neck orange i.e. the size of periderm, vascular bundle and pith, were similar to that of Neck orange. The vascular bundle of Swingle citrumelo was larger than that of the two rootstocks. Troyer citrange rootstock gave the best results in all growth parameters of Neck orange. The study of isozymes recorded an extra locus (Est 3 of Swingle citrumelo rootstock occurred in Neck orange at 24 and 48 weeks after grafting.

  4. Retórica del negro, blanco y rojo: razonabilidad y estética para persuadir con imagenes visuales

    Directory of Open Access Journals (Sweden)

    José Luiz Caivano

    2004-12-01

    Full Text Available Nuestra propuesta analizará cómo el uso del color puede ser un elemento privilegiado para argumentar en una imagen visual. Los valores y connotaciones atribuidos al color en el contexto de un enunciado visual funcionan como "pruebas" en razonamientos de tipo persuasivo. De este modo, el uso de figuras retóricas no es un fin en sí mismo sino el correlato visible de la argumentación que funciona como andamiaje oculto, implícito, de la persuasión. En esta oportunidad hemos elegido el rojo, el negro y el blanco por la frecuencia de su aparición, la cantidad de usos y lo nutrido de sus interpretaciones socioculturales - que incluso pueden resultar aparentemente paradójicas o contradictorias. Todos estos sentidos están latents y coexisten. Los colores son reinterpretados en correspondencia con los contextos de uso en los textos mismos (co-textos, y con los efectivos contextos sociales que los enmarcan en una situación real dada (espacio y tiempo históricos.

  5. A search for flares and mass ejections on young late-type stars in the open cluster Blanco-1

    CERN Document Server

    Leitzinger, M; Greimel, R; Korhonen, H; Guenther, E W; Hanslmeier, A; Lammer, H; Khodachenko, M L

    2014-01-01

    We present a search for stellar activity (flares and mass ejections) in a sample of 28 stars in the young open cluster Blanco-1. We use optical spectra obtained with ESO's VIMOS multi-object spectrograph installed on the VLT. From the total observing time of $\\sim$ 5 hours, we find four H$\\alpha$ flares but no distinct indication of coronal mass ejections (CMEs) on the investigated dK-dM stars. Two flares show "dips" in their light-curves right before their impulsive phases which are similar to previous discoveries in photometric light-curves of active dMe stars. We estimate an upper limit of $<$4 CMEs per day per star and discuss this result with respect to a semi- empirical estimation of the CME rate of main-sequence stars. We find that we should have detected at least one CME per star with a mass of 1-15$\\times10^{16}$ g depending on the star's X-ray luminosity, but the estimated H$\\alpha$ fluxes associated with these masses are below the detection limit of our observations. We conclude that the paramet...

  6. A search for flares and mass ejections on young late-type stars in the open cluster Blanco-1

    Science.gov (United States)

    Leitzinger, M.; Odert, P.; Greimel, R.; Korhonen, H.; Guenther, E. W.; Hanslmeier, A.; Lammer, H.; Khodachenko, M. L.

    2014-09-01

    We present a search for stellar activity (flares and mass ejections) in a sample of 28 stars in the young open cluster Blanco-1. We use optical spectra obtained with European Southern Observatory's Visible Multi-Object Spectrograph installed on the Very Large Telescope. From the total observing time of ˜5 h, we find four Hα flares but no distinct indication of coronal mass ejections (CMEs) on the investigated dK-dM stars. Two flares show `dips' in their light curves right before their impulsive phases which are similar to previous discoveries in photometric light curves of active dMe stars. We estimate an upper limit of <4 CMEs per day per star and discuss this result with respect to a empirical estimation of the CME rate of main-sequence stars. We find that we should have detected at least one CME per star with a mass of ≤ 3 × 1017 g depending on the star's X-ray luminosity, but the estimated Hα fluxes associated with these masses are below the detection limit of our observations. We conclude that the parameter which mainly influences the detection of stellar CMEs using the method of Doppler-shifted emission caused by moving plasma is not the spectral resolution/velocity but the flux/mass of the CME.

  7. 药用植物广藿香4个品种染色体数研究%Studies on Chromosome Number of Four Varieties of Pogostemon cablin (Blanco) Benth.

    Institute of Scientific and Technical Information of China (English)

    黄珊珊

    2013-01-01

    采用酶解去壁低渗法对中药广藿香(Pogostemon cablin(Blanco)Benth.)4个栽培品种的体细胞染色体进行研究.结果表明,石牌广藿香(Pogostemon cablin(Blanco) Benth.CV.shipaiensi)、湛江广藿香(Pogostemon cablin(Blanco) Benth.CV.zhanjiangensi)、高要广藿香Pogostenwn cablin(Blanco)Benth.CV.gaoyaoensi)和印尼广藿香Pogostenwn cablin (Blanco) Benth.CV.yinniensi)的染色体数均为2n=2x=64,均为二倍体,结果证实广藿香4个栽培品种染色体数一致,均为同一种植物.广藿香植物的染色体数的研究,为种的鉴定、遗传育种提供依据.

  8. Low Temperature Induced Changes in Citrate Metabolism in Ponkan (Citrus reticulata Blanco cv. Ponkan) Fruit during Maturation.

    Science.gov (United States)

    Lin, Qiong; Qian, Jing; Zhao, Chenning; Wang, Dengliang; Liu, Chunrong; Wang, Zhidong; Sun, Chongde; Chen, Kunsong

    2016-01-01

    Citrate is the most important organic acid in citrus fruit, and its concentration in fruit cells is regulated mainly by the balance between synthesis and degradation. Ponkan (Citrus reticulate Blanco cv. Ponkan) is one of the major citrus cultivars grew in China, and the fruit are picked before fully mature to avoid bad weather. Greenhouse production is widely used to prolong the maturation period and improve the quality of Ponkan fruit by maintaining adequate temperature and providing protection from adverse weather. In this research, Ponkan fruit cultivated in either a greenhouse or open field were used to investigate differences in the expression of genes related to citrate metabolism during maturation in the two environments. The citrate contents were higher in open field fruit, and were mainly correlated with expressions of CitPEPCs, CitCSs, CitAco3 and CitGAD4, which were significantly increased. In addition, the impacts of low temperature (LT) and water stress (WS) on citrate metabolism in Ponkan were investigated during fruit maturation. The citrate contents in LT fruit were significantly increased, by between 1.4-1.9 fold, compared to the control; it showed no significant difference in fruit with water stress treatment compared to the control fruit. Furthermore, the expressions of CitPEPCs, CitCSs, CitAco3 and CitGAD4 were significantly increased in response to LT treatment, but showed no significant difference in WS compared to the control fruit. Thus, it can be concluded that low temperature may be the main factor influencing citrate metabolism during maturation in Ponkan fruit. PMID:27249065

  9. Florescimento de tangerineiras 'Ponkan' (Citrus reticulata Blanco submetidas a diferentes períodos de temperatura invernal

    Directory of Open Access Journals (Sweden)

    Flávia Mara Vieira Lelis

    2008-09-01

    Full Text Available O trabalho foi desenvolvido com o objetivo de avaliar o efeito do acúmulo de temperaturas abaixo de 20° C, sobre a floração de tangerineiras 'Ponkan' (Citrus reticulata Blanco. Foi adotado o delineamento inteiramente casualizado, com seis tratamentos e quatro repetições. Os tratamentos foram formados por sete datas de transferência das mudas, mantidas a céu aberto, para a câmara de crescimento. Foram utilizadas plantas de tangerineira 'Ponkan' enxertadas sobre limoeiro 'Cravo', cultivadas em recipientes, que inicialmente foram mantidas a céu aberto. O experimento foi iniciado no dia 16-05-2007 (início do período de redução da temperatura na região e conduzido até 17-08-2005. Quinzenalmente, quatro plantas que estavam a céu aberto foram transferidas para câmara de crescimento, com temperaturas de 27°C/20°C (dia/noite, umidade relativa de 75%, fotoperíodo de 12 horas e radiação fotossinteticamente ativa de 170 µmol m-2 s-1. Foram avaliados a data do florescimento e o número total de flores de todas as plantas. Quanto maior foi o tempo de permanência das plantas a céu aberto em temperaturas inferiores a 20° C, maiores foram a antecipação do florescimento e o número de flores produzidas.

  10. 广藿香抗青枯病鉴定方法的研究%Study on Bacterial-wilt-resistance Identification Methods for Pogostemon cablin (Blanco) Benth.

    Institute of Scientific and Technical Information of China (English)

    贺红; 温雁鹰; 许仕仰; 梁志毅

    2011-01-01

    Objective To investigate the optimal concentration and inoculation procedure of crude toxin from Ralstonia solanacearum, and to establish the identification method for bacterial wilt resistance of Pogostemon cablin (Blanco) Benth. seedling, so as to lay the foundation for resistance breeding of Pogostemon cablin (Blanco)Benth.. Methods The growth curve of Ralstonia solanacearum was determined. And then we studied the effect of seedling age, crude toxin concentrations and inoculation ways for the crude toxin on the pathogenicity of Pogostemon cablin (Blanco) Benth.. Results The growth of Ralstonia solanacearum presented as the S-shaped curve, the highest concentration being 12. 46 × l08 cfu/mL. The seedling of Pogostemon cablin (Blanco) Benth. aged 100 days was optimal for the identification of bacterial wilt resistance. In the crude toxin concentration range of 0. 4 ×108 ~ 0. 6 × 108 cfu/mL, the inoculated plant showed a moderately advanced progress of bacterial wilt, which was suitable for the resistance identification. Having the advantage of shortening the experiment period, the rootsubmerging method was recommended for the resistance identification of Pogostemon cablin (Blanco) Benth..Conclusion The indoor identification method for Pogostemon cablin (Blanco) Benth. resistance to bacterial wilt has been established preliminarily.%[目的]对广藿香幼苗接种青枯茵粗毒素,观察其感病状况,建立广藿香苗期抗性鉴定方法,为广藿香抗病育种奠定基础.[方法]测定不同培养时间的青枯茵菌液浓度,绘制青枯菌的生长曲线;分别设置不同广藿香苗龄、不同浓度青枯菌制备粗毒素及不同接种方法等试验,探讨影响致病性的因素.[结果]青枯茵的生长曲线呈"S"型,青枯茵菌液浓度在稳定期最高可达12.46×108cfu/mL.对于广藿香抗青枯病的苗期鉴定,以100d左右苗龄的植株较适宜;在0.4×108~0.6×108cfu/mL浓度范围内,接种植株表现渐进的发病过

  11. Daño oxidativo en la microalga Pseudokirchneriella subcapitata expuesta a aguas receptoras de un efluente minero en del Río Blanco (V Región, Chile Oxidative demage in the microalgae Pseudokirchneriella subcapitata exposed to receiving waters of a mining effluent in the Rio Blanco (V Region, Chile

    Directory of Open Access Journals (Sweden)

    Fernanda Aránguiz

    2009-01-01

    Full Text Available In this investigation antioxidant response and toxicity of metals in receiving water effluent miner in the Blanco river in Pseudokirchneriella subcapitata was assessed. The catalase activity, lipid damage through Tbars, the growth rate of was determined. The result showed an inhibition of the growth rate of P. subcapitata which correlated with increased catalase activity and the lipid liperoxidation. These responses were correlated with the concentrations of copper and iron.

  12. Magmatismo ácido del mioceno superior-cuaternario en el área de Cerro Blanco-La Hoyada, Puna Austral

    Directory of Open Access Journals (Sweden)

    María Carolina Montero López

    2010-11-01

    Full Text Available El volcanismo de composición ácida desarrollado en la Puna Austral entre el Mioceno superior y el Holoceno está representado en el extremo oriental de la cordillera de San Buenaventura (26°25'-27°00'S y 67°25'-67°50' O por dos unidades: Ignimbrita Aguada Alumbrera y Complejo Volcánico Cerro Blanco. Hacia el norte y noroeste de esta área afloran flujos piroclásticos (Ignimbrita Rosada cuyo análisis se presenta aquí a fines comparativos. Estas rocas volcánicas apoyan sobre un basamento metamórfico de mediano a alto grado con intrusivos del Neoproterozoico-Paleozoico inferior y rocas volcánicas de composición intermedia de ca. 9-7 Ma. Las rocas estudiadas abarcan un lapso entre el Mioceno superior (Ignimbrita Aguada Alumbrera e Ignimbrita Rosada hasta el Holoceno (Complejo Volcánico Cerro Blanco, tienen afinidad calcoalcalina y son principalmente de composición riolítica. En este estudio se presentan nuevos datos de campo que permiten ordenar la estratigrafía del sector de estudio, así como resultados de geoquímica. Las ignimbritas del Mioceno Superior-Plioceno estudiadas presentan características similares a las rocas ácidas aflorantes al oeste del área de estudio, las cuales fueron relacionadas por diversos autores a un ambiente de subducción procedentes de fuentes mantélicas con altos porcentajes de contaminación cortical, mientras que el Complejo Volcánico Cerro Blanco podría estar reflejando su procedencia de la fusión directa de la corteza, si bien esta hipótesis debe ser corroborada con mayor cantidad de datos geoquímicos.

  13. Evaluación microbiológica y sensorial de fermentados de pozol blanco, con cacao (Theobroma cacao y coco (Cocos nucifera

    Directory of Open Access Journals (Sweden)

    Román Jiménez Vera

    2010-06-01

    Full Text Available El pozol es una bebida de maíz que se consume en el sureste de México y en algunos países de Centroamérica. Se puede consumir recién elaborado o fermentado. Tradicionalmente se consume solo (pozol blanco, aunque también es común agregarle cacao o coco. En este trabajo se evaluaron cambios microbiológicos durante la fermentación natural a temperatura ambiental, de tres tipos de pozol: blanco, con cacao y coco. La concentración de bacterias coliformes disminuyó a partir del tercer día de fermentación y a los 12 días se obtuvo una concentración de 2,20 log UFC/g. En las bacterias lácticas se observó el mayor crecimiento; ellas alcanzaron una concentración de 8,00 log UFC/g a los 3 días de fermentación que se mantuvo durante los 9 días siguientes. Se realizaron pruebas de nivel de agrado y preferencia con 31 jueces consumidores. La adición de ingredientes como el cacao o el coco no mejoraron el nivel de agrado entre los consumidores evaluados (p > 0,05. El pozol blanco y fresco fue el preferido (32 %. En el futuro, estos resultados pueden ser utilizados para clasificar al pozol como una bebida funcional, debido a la presencia de bacterias lácticas en concentración similar a la encontrada en el yogur.

  14. Evaluación microbiológica y sensorial de fermentados de pozol blanco, con cacao (Theobroma cacao y coco (Cocos nucifera

    Directory of Open Access Journals (Sweden)

    Román Jiménez Vera

    2010-07-01

    Full Text Available El pozol es una bebida de maíz que se consume en el sureste de México y en algunos países de Centroamérica. Se puede consumir recién elaborado o fermentado. Tradicionalmente se consume solo (pozol blanco, aunque también es común agregarle cacao o coco. En este trabajo se evaluaron cambios microbiológicos durante la fermentación natural a temperatura ambiental, de tres tipos de pozol: blanco, con cacao y coco. La concentración de bacterias coliformes disminuyó a partir del tercer día de fermentación y a los 12 días se obtuvo una concentración de 2,20 log UFC/g. En las bacterias lácticas se observó el mayor crecimiento; ellas alcanzaron una concentración de 8,00 log UFC/g a los 3 días de fermentación que se mantuvo durante los 9 días siguientes. Se realizaron pruebas de nivel de agrado y preferencia con 31 jueces consumidores. La adición de ingredientes como el cacao o el coco no mejoraron el nivel de agrado entre los consumidores evaluados (p > 0,05. El pozol blanco y fresco fue el preferido (32 %. En el futuro, estos resultados pueden ser utilizados para clasificar al pozol como una bebida funcional, debido a la presencia de bacterias lácticas en concentración similar a la encontrada en el yogur.

  15. Evaluating gyrochronology on the zero-age-main-sequence: rotation periods in the southern open cluster Blanco 1 from the Kelt-South survey

    Energy Technology Data Exchange (ETDEWEB)

    Cargile, P. A.; Pepper, J.; Siverd, R.; Stassun, K. G. [Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235 (United States); James, D. J. [Cerro Tololo Inter-American Observatory, La Serena (Chile); Kuhn, R. B., E-mail: p.cargile@vanderbilt.edu [South African Astronomical Observatory, Cape Town (South Africa)

    2014-02-10

    We report periods for 33 members of Blanco 1 as measured from Kilodegree Extremely Little Telescope-South light curves, the first reported rotation periods for this benchmark zero-age-main-sequence open cluster. The distribution of these stars spans from late-A or early-F dwarfs to mid-K with periods ranging from less than a day to ∼8 days. The rotation period distribution has a morphology similar to the coeval Pleiades cluster, suggesting the universal nature of stellar rotation distributions. Employing two different gyrochronology methods, we find an age of 146{sub −14}{sup +13} Myr for the cluster. Using the same techniques, we infer an age of 134{sub −10}{sup +9} Myr for the Pleiades measured from existing literature rotation periods. These rotation-derived ages agree with independently determined cluster ages based on the lithium depletion boundary technique. Additionally, we evaluate different gyrochronology models and quantify levels of agreement between the models and the Blanco 1/Pleiades rotation period distributions, including incorporating the rotation distributions of clusters at ages up to 1.1 Gyr. We find the Skumanich-like spin-down rate sufficiently describes the rotation evolution of stars hotter than the Sun; however, we find cooler stars rotating faster than predicted by a Skumanich law, suggesting a mass dependence in the efficiency of stellar angular momentum loss rate. Finally, we compare the Blanco 1 and Pleiades rotation period distributions to available nonlinear angular momentum evolution models. We find they require a significant mass dependence on the initial rotation rate of solar-type stars to reproduce the observed range of rotation periods at a given stellar mass and are furthermore unable to predict the observed over-density of stars along the upper envelope of the clusters' rotation distributions.

  16. EFECTO DEL ENRIQUECIMIENTO DE Artemia FRANCISCANA CON DIFERENTES PROPORCIONES DE ω-3 DHA/EPA SOBRE EL CRECIMIENTO DE JUVENILES DE PEZ BLANCO Menidia estor.

    OpenAIRE

    Hernández Téllez, Ana Rosa

    2012-01-01

    La inclusión de los ácidos grasos ω-3 DHA y EPA en el alimento, es un factor importante para lograr mejor supervivencia y crecimiento en la mayoría de los peces cultivados. Dentro del desarrollo tecnológico para el cultivo del pez blanco de Pátzcuaro Menidia estor, se desconoce el requerimiento de ácidos grasos ω-3 DHA/EPA, y el efecto que éstos tienen en el crecimiento y supervivencia de juveniles en cautiverio. En esta especie como en otras, el alimento vivo (nauplio de Artem...

  17. A propósito de la semiótica y las ciencias humanas. (Comentario al artículo de Desiderio Blanco)

    OpenAIRE

    Óscar Quezada Machiavello

    2011-01-01

    Desiderio Blanco ha presentado una ponencia al Seminario-Taller deInvestigación «Fernando Tola Mendoza» organizado por la Facultad de Letras yCiencias Humanas de la Universidad Nacional Mayor de San Marcos tituladaSemiótica y Ciencias Humanas en la que reflexiona en torno a esa relación en laperspectiva de la interdisciplinariedad. En un primer momento, da cuenta de laconfluencia de disciplinas en la que nace la semiótica moderna y explicasomeramente la...

  18. Evaluación de cultivares de ajo morado y blanco por su rendimiento agronómico e industrial en Irapuato, Guanajuato

    OpenAIRE

    Luis Pérez Moreno; Paulo Manuel García Rincón; Rafael Ramírez Malagón; José Luis Barrera Guerra

    2003-01-01

    Se evaluó el rendimiento, variables de calidad del bulbo y rendimiento industrial de cultivares de ajo (Allium sativum L.), durante los ciclos otoño-invierno 1988-1989, 1989-1990, 1991-1992 y 2001-2002, en el Instituto de Ciencias Agrícolas de la Universidad de Guanajuato. Se emplearon genotipos de color morado y blanco, con resultados variables de acuerdo con su genotipo y ciclo vegetativo. Ninguno de los cultivares precoces calificó para rendimiento de campo, calidad o rendimiento industria...

  19. Effect of juice extraction methods and processing temperature-time on juice quality of Nagpur mandarin (Citrus reticulata Blanco) during storage

    OpenAIRE

    Pareek, Sunil; Paliwal, Ravinder; Mukherjee, Subrata

    2010-01-01

    Influence of juice extraction methods and pasteurization temperature and time on quality of mandarin (Citrus reticulata Blanco) juice was studied. The experiment consisted of 65 °C pasteurization temperature with 15, 25 and 35 min holding time; 75 °C with 10, 20 and 30 min and 85 °C with 5, 10 and 15 min holding times and two types of juice extraction methods. The experiment was laid out in factorial completely randomized Design with three replications. Juice extracted with screw type juice e...

  20. Utilización de ingredientes tradicionales y nuevos productos derivados del haba de soja en piensos de lechones blancos e ibéricos: efectos sobre la fisiología digestiva y la productividad

    OpenAIRE

    Díaz Berrocoso, Julio Francisco

    2013-01-01

    Los objetivos principales de esta Tesis Doctoral fueron estudiar en 4 ensayos los efectos a) del procesado del maíz y la inclusión en los piensos de ingredientes de alta calidad como harina de pescado o fuentes de lactosa en lechones blancos b) inclusión en el pienso de diferentes productos derivados del haba de soja, con diferente contenido de proteína bruta (PB), tamaño de partícula y origen en lechones blancos e ibéricos y c) inclusión en el pienso de lechones ibéricos de ingredientes de a...

  1. Effect of pulse irrigation scheduling with hybrid station controller on fruit yield and quality of Nagpur mandarin (citrus reticulate blanco

    Directory of Open Access Journals (Sweden)

    Parameshwar Sidramappa Shirgure

    2013-01-01

    Full Text Available The hybrid station controller based automatic pulse irrigation scheduling field experiment was conducted on 10-12 years old bearing Nagpur mandarin (Citrus reticulata Blanco at National Research Center for Citrus, Nagpur during 2008-2011. The objective was to study the automatic daily irrigation scheduling as well as alternate day based on time schedule and potential evapo-transpiration through the drip irrigation. The treatments were consisted of Automatic daily irrigation daily with 60 minute interval three times (I1; Automatic irrigation daily with 90 minute interval two times (I2; Automatic irrigation at alternate day with 120 minute three times (I3; and Automatic irrigation at alternate day with 180 minute two times (I4 with six replications in Randomized Block Design. The automatic hybrid station controller E-6 (Rain Bird, USA was used for micro-irrigation schedule setting the time for each treatment based on the water need of the plant and average open pan evaporation. The various scheduling treatment timings were programmed in A, B and C programs of the hybrid station controller. The sustainable production of Nagpur mandarin is possible with drip irrigation using automatic scheduling daily or on alternate days.  The water use in October varied from 65.0-72.4 liters/day/plant and during May-June it was 133.0 - 147.7 liters/day/plant. Drip irrigation was scheduled to maintain automatically the soil moisture status above 25% (wet basis during fruit growing period. The leaf nutrient status was high with automatic alternate day drip irrigation schedule. The canopy temperature was positively influenced with automatic drip irrigation schedules.  The Nagpur mandarin fruit yield was highest (30.91 tones/ha with irrigation on alternate day 120 minutes three times, followed by irrigation scheduled with 90 minutes interval two times daily (30.11 tones/ha. Fruit weight (154.7 g, TSS (10.22 0Brix and juice percent (40.77% was found with automatic

  2. Trayectorias de crecimiento radial de especies maderables, yesquero blanco (Cariniana ianeirensis) y serebó (Schizolobium parahyba) en un bosque subhúmedo de la provincia Guarayos (Santa Cruz - Bolivia)

    NARCIS (Netherlands)

    Romero-Seas, A.; Toledo, M.; Zuidema, P.

    2015-01-01

    Dendrochronology allows to study variations in the growth of the trees. The following research questions were addressed: The growth trajectories of yesquero blanco (Cariniana ianeirensis Kunth) and serebó (Schizolobium parahyba Vell S. F. Blake) species that belong to different ecological guilds? An

  3. Ecocardiografía bidimensional normal en conejos neozelandeses blancos Normal two-dimensional echocardiography in new zewland white rabbits

    Directory of Open Access Journals (Sweden)

    P Chiaramonte

    2010-12-01

    Full Text Available Los autores describen las posiciones de las ventanas ecocardiográficas paraesternal derecha e izquierda, subxifoidea y subcostal izquierda, los aspectos anatómicos de los ecotomogramas de referencia en cada una de las ventanas estudiadas y presentan los valores medios obtenidos de los distintos accidentes e índices ecocardiográficos medidos en 38 conejos neozelandeses blancos. Los valores promedios obtenidos fueron los siguientes: espesor del septum interventricular en sístole (ESIVs: 2,9 mm ± 0,53 mm; espesor del septum interventricular en diástole (ESIVd: 4,41 mm ± 1,12 mm; diámetro sistólico del ventrículo izquierdo (DSVI: 15,76 mm ± 1,77 mm; diámetro diastólico del ventrículo izquierdo (DDVI:11,14 mm ± 1,73 mm; espesor de la pared libre del ventrículo izquierdo en sístole (EPLVId: 3,59 mm ± 0,54 mm; espesor de la pared libre del ventrículo izquierdo en diástole (EPLVIs: 4,53 mm ± 0,71 mm; fracción de acortamiento (FA%: 29,72 % ± 5,79 %; fracción de eyección (FE%: 64,09 % ± 8,61 %; diámetro aórtico a nivel de la base cardíaca (DAo: 8,87 mm ± 1,21 mm; diámetro del atrio izquierdo a nivel de la base cardíaca (DAi: 10,61 mm ± 1,28 mm; Relación atrio izquierdo y aorta en la base cardíaca (Ai:Ao: 1,21± 0,21; separación septal del punto E (SSPE: 2,18 mm ± 0,6 mm y excursión del anillo mitral (EAM: 5,61 mm ± 0,83 mm.Authors describe the position of the right and left parasternal, subxifoid and left subcostal echocardiographic windows, the anatomical aspects of the reference echotomograms of the studied windows, and present the obtained mean values of the different echocardiographic accidents and indexes in 38 New Zealand rabbits. The obtained means values were: interventricular septal thickness in systole (IVSTs: 2.95 mm ± 0.53 mm; interventricular septal thickness in diastole (IVSTd: 4.41 mm ± 1.12 mm; left ventricular systolic diameter (LVSD: 15.76 mm ± 1.77 mm; left ventricular diastolic diameter (LVDD

  4. Mineralized and Barren Tourmaline Breccia at Río Blanco-Los Bronces Copper Deposit, Central Chile

    Science.gov (United States)

    Hohf, Michael; Seifert, Thomas; Ratschbacher, Lothar; Rabbia, Osvaldo; Krause, Joachim; Haser, Sabine; Cuadra, Patricio

    2014-05-01

    The Río Blanco-Los Bronces porphyry copper-molybdenum cluster (14.8-4.3 Ma) in central Chile is one of the largest mining districts of the world with more than 200 Mt of contained Cu; almost 30% of these resources are hosted by hydrothermal breccias. These breccia complexes are tourmaline-, biotite-, chlorite-, or iron oxide-cemented and are widespread in the Paleo-Eocene and Mio-Pliocene porphyry Cu-Mo belt of the central Andes. The ongoing research project aims to understand the time-space relationships between the different breccia bodies and the multiple porphyry intrusions. For this, two cross sections in the southern part of the deposit (Sur-Sur and La Americana areas) are studied. Most interesting from the economic/genetic point of view is the intermineral breccia (tourmaline- and biotite-cemented), which have high copper grades. It is under debate whether there is a vertical mineralogical zonation of the cement of the breccia body from tourmaline-rich at the top to biotite-dominated at the bottom, or there are two superimposed breccia formation events. Textural and mineralogical observations of benches- and tunnels-outcrops, drill cores, and polished-thin sections support the first hypothesis. Our work has been focused on tourmaline chemistry due to its high resistance to alteration and weathering, which allows this mineral to retain its original isotopic signature. Preliminary results of 127 microprobe measurements of tourmaline chemistry from the early mineralized breccia (BXT) and the late barren one (BXTTO) show that all the tourmalines belong to the alkali group and the composition ranges between the dravite-schorl end members. There is a pronounced negative correlation between Fe (ferric?) and Al, probably due to exchange at the Z octahedral position. The backscatter images of tourmaline show oscillatory and sector zonings, i.e., alternating light bands/zones (high CaO, FeO, Na2O) and darker ones (enriched in Al2O3 and MgO). There is no significant

  5. Características tectónicas y tectosedimentarias del hemigraben Rincón Blanco, Cuenca Cuyana: una síntesis

    Directory of Open Access Journals (Sweden)

    Silvia Barredo

    2010-03-01

    Full Text Available Durante el Triásico, el margen de Gondwana se caracterizó por la presencia de cuencas extensivas de dirección noroeste. La cuenca Cuyana está compuesta por hemigrábenes donde se acumularon espesas secuencias clásticas y piroclásticas que en algunos casos alcanzaron los 3.000 m de espesor. En el caso particular de la subcuenca Rincón Blanco, uno de los depocentros más septentrionales de la cuenca, está limitado por una falla normal del tipo de crecimiento y de diseño en-échèlon en planta. La presencia de depocentros discretos a lo largo del rumbo de la misma sugiere que ésta evolucionó a través de la interacción de segmentos menores separados por una zona de transferencia o bien por la propagación de la misma a través de uno de sus extremos o tips. El relleno estuvo enmarcado por un fuerte control tectónico que le imprimió a las secuencias rasgos distintivos. Así, es posible afirmar que la arquitectura de las secuencias resulta de la geometría y de la historia del desplazamiento de la falla de borde o falla maestra. Utilizando el análisis litológico y los datos estructurales, el relleno se dividió en paquetes de secuencias genéticamente relacionadas o unidades tectonoestratigráficas separadas por discordancias regionales. Con estos conceptos fue posible reconstruir la geometría de margen activo del hemigraben Rincón Blanco y la historia de su relleno, en una región afectada por fuerte deformación compresiva andina. Además, estas herramientas conceptuales permitieron establecer preliminarmente la relación entre la Unidad Marachemill y el Grupo Rincón Blanco, históricamente consideradas como un único paquete de secuencias.

  6. Economic benefits analysis of Citrus reticulata Blanco cv.Ougan in mountainous region%山地无籽瓯柑栽培经济效益分析

    Institute of Scientific and Technical Information of China (English)

    徐象华; 朱国华; 颜福花

    2014-01-01

    采用技术经济分析方法,研究了山地无籽瓯柑良种栽培的成本构成和各项经济指标。结果表明:在15 a一个生产周期中,其内部收益率为34.28%,投资回收期5.82 a,每公顷净现值299240元,设计产量或价格收益率的盈亏平衡点为52.88%。在影响无籽瓯柑良种栽培经济效果的诸因素中,以销售收入变动影响最大,其次为生产成本,从现实情况分析,其市场风险和政策风险是很小的。政府在无籽瓯柑产业资金扶持政策上,应重点考虑对基地建设的资金扶持,或扩大小额贷款范围、延迟还贷时间等政策措施,促进无籽瓯柑产业的发展。%The cost composition and economic indicators of Citrus reticulata Blanco cv .Ougan in mountainous region was analyzed by technical and economic analysis method .The results showed that the internal rate of return in 15-year production cycle was 34.28%, period for recovery of investment was 5.82 years, the net present value was 299 240 yuan· hm-2 , the break-even point of planned output or earnings price ratio was 52.88%.Among the influence factors on economic benefit of cultivation of improved Citrus reticulata Blanco cv.Ougan, the effect of sales revenue was the largest , the production cost took the second place .According to market in recent years , its market risk and policy risk were quite low.In order to promote the industry development of Citrus reticulata Blanco cv.Ougan, the government should make fund policies to build orchard , enlarge scope of small-amount loans , or delay the time of repay loans and so on .

  7. Distinct Carotenoid and Flavonoid Accumulation in a Spontaneous Mutant of Ponkan (Citrus reticulata Blanco) Results in Yellowish Fruit and Enhanced Postharvest Resistance.

    Science.gov (United States)

    Luo, Tao; Xu, Kunyang; Luo, Yi; Chen, Jiajing; Sheng, Ling; Wang, Jinqiu; Han, Jingwen; Zeng, Yunliu; Xu, Juan; Chen, Jianmin; Wu, Qun; Cheng, Yunjiang; Deng, Xiuxin

    2015-09-30

    As the most important fresh fruit worldwide, citrus is often subjected to huge postharvest losses caused by abiotic and biotic stresses. As a promising strategy to reduce postharvest losses, enhancing natural defense by potential metabolism reprogramming in citrus mutants has rarely been reported. The yellowish spontaneous mutant of Ponkan (Citrus reticulata Blanco) (YP) was used to investigate the influence of metabolism reprogramming on postharvest performance. Our results show that reduced xanthophyll accumulation is the cause of yellowish coloring of YP and might be attributed to the reduced carotenoid sequestration capacity and upregulated expression of carotenoid cleavage dioxygenase genes. Constantly higher levels of polymethoxylated flavones (PMFs) during the infection and the storage stage might make significant contribution to the more strongly induced resistance against Penicillium digitatum and lower rotting rate. The present study demonstrates the feasibility of applying bud mutants to improve the postharvest performance of citrus fruits. PMID:26329679

  8. DESARROLLO TECNOLÓGICO PARA ELABORAR VINO BLANCO COMÚN EN MISIONES, CON EVALUACIÓN ECONÓMICA A ESCALA INDUSTRIAL

    Directory of Open Access Journals (Sweden)

    Miño Valdés , Juan Esteban

    2013-01-01

    Full Text Available El objetivo de este trabajo fue desarrollar una tecnología sustentable a escala industrial para elaborar vino blanco común, con uvas no viníferas cultivadas en Misiones. Este proyecto tecnológico se inició a escala laboratorio, continuó en planta piloto y proyectó a escala industrial. Se consideró como unidad productiva a 12 familias rurales con 27 ha de viñedo cada una. Las 8 etapas seguidas con metodología inductiva y deductiva fueron: La elaboración de vino blanco seco a escala laboratorio. La evaluación de las variables del proceso en las vinificaciones. El modelo matemático de la fermentación alcohólica en condiciones enológicas. La valoración de la aptitud de los vinos para el consumo humano. El establecimiento de un procedimiento tecnológico para la vinificación en planta piloto. La evaluación en planta piloto del procedimiento tecnológico establecido. El cálculo y la selección del equipamiento industrial. La estimación de los costos y la rentabilidad del proceso tecnológico industrial. Se alcanzó una tecnología para una capacidad de producción de 5.834 L (litros día-1, con indicadores económicos dinámicos cuyos valores fueron: valor actualizado neto de 6.602.666 U$D, una taza interna de retorno del 60 % para un período de recuperación de inversión a valor actualizado neto de 3 años.

  9. Polymethoxylated flavones, flavanone glycosides, carotenoids, and antioxidants in different cultivation types of tangerines ( Citrus reticulata Blanco cv. Sainampueng) from Northern Thailand.

    Science.gov (United States)

    Stuetz, Wolfgang; Prapamontol, Tippawan; Hongsibsong, Surat; Biesalski, Hans-Konrad

    2010-05-26

    Polymethoxylated flavones (PMFs) and flavanone glycosides (FGs) were analyzed in hand-pressed juice and the peeled fruit of 'Sainampueng' tangerines ( Citrus reticulata Blanco cv. Sainampueng) grown in northern Thailand. The tangerines were collected from a citrus cluster of small orchard farmers and were cultivated as either agrochemical-based (AB), agrochemical-safe (AS), or organic grown fruits. Juice samples were also measured on contents of carotenoids, ascorbic acid, and tocopherols. The peel-deriving PMFs tangeretin, nobiletin, and sinensetin were found with high concentrations in juice as a result of simple squeezing, whereas amounts of those PMFs were negligibly low in peeled tangerine fruit. In contrast, the mean concentrations of the FGs narirutin, hesperidin, and didymin were several fold higher in peeled fruit than in tangerine juice and significantly higher in organic than AS and AB tangerines. Narirutin and hesperidin in juice from organic produces as well as narirutin in juice from AS produces were significantly higher than respective mean concentrations in juice from AB produces. beta-Cryptroxanthin was the predominant carotenoid beside zeaxanthin, lutein, lycopene, and beta-carotene in tangerine juice. Ascorbic acid concentrations were not predicted by the type of cultivation, whereas alpha-tocopherol was significantly higher in juice from organic than AS produces. In summary, hand-pressed juice of C. reticulata Blanco cv. Sainampueng serves as a rich source of PMFs, FGs, carotenoids, and antioxidants: 4-5 tangerine fruits ( approximately 80 g of each fruit) giving one glass of 200 mL hand-pressed juice would provide more than 5 mg of nobiletin and tangeretin and 36 mg of hesperidin, narirutin, and didymin, as well as 30 mg of ascorbic acid, >1 mg of provitamin A active beta-cryptoxanthin, and 200 microg of alpha-tocopherol. PMID:20420369

  10. EFECTO DE LA RESTRICCIÓN ALIMENTICIA Y LA REALIMENTACIÓN SOBRE LA COMPOSICIÓN DEL MÚSCULO BLANCO DE Piaractus brachypomus

    Directory of Open Access Journals (Sweden)

    F. Y. Riaño

    2011-01-01

    Full Text Available Con el propósito de evaluar el efecto de la restricción alimenticia y la realimentación sobre la composición del músculo blanco de cachama blanca, se aplicaron dos protocolos de restricción alimenticia durante 84 días, cada uno dividido en un periodo de restricción alimenticia y un periodo de realimentación. En el primer protocolo, se aplicó una restricción alimenticia moderada (33,3%, y en el segundo, una restricción severa (50%; ambos grupos fueron comparados con un grupo control que recibió una ración alimenticia igual a la suministrada bajo condiciones de un cultivo comercial. Al finalizar el ensayo, ninguno de los tiempos de restricción alimenticia tuvo efectos significativos (p > 0,05 sobre el porcentaje de proteína del filete. Sin embargo, se observaron efectos significativos (p < 0,05 sobre los porcentajes de lípidos, cenizas y energía. Con respecto al porcentaje de cenizas musculares, se observó que la restricción alimenticia tendió a aumentar su valor, mientras que para el porcentaje de lípidos y los niveles de energía, se encontró el efecto contrario. No obstante, cuando los individuos finalizaron el periodo de realimentación, se observó un restablecimiento en los niveles de nutrientes comparados con los individuos no restringidos. En cuanto al perfil de ácidos grasos, el grupo control mostró con diferencias significativas (p < 0,05 mayor porcentaje de omega-3 (n-3. Estos resultados permiten concluir que los protocolos de alimentación aplicados estimularon, en Piaractus brachypomus, movilización de nutrientes musculares y su posterior restablecimiento, sin afectar la integridad del músculo blanco.

  11. The Blanco Cosmology Survey: Data Reduction, Calibration and Photometric Redshift Estimation to Four Distant Galaxy Clusters Discovered by the South Pole Telescope

    Science.gov (United States)

    Ngeow, Chow Choong; Mohr, J.; Zenteno, A.; Data Management, DES; BCS; SPT Collaborations

    2009-01-01

    The Blanco Cosmology Survey (BCS) is designed to enable a study of the cosmic acceleration using multiple techniques. To date, BCS has acquired Sloan griz band imaging data from 60 nights (15 nights per year from 2005 to 2008) using the Blanco 4m Telescope located at CTIO. The astronomical imaging data taken from this survey have been processed on high performance computer TeraGrid platforms at NCSA, using the automated Dark Energy Survey (DES) data management (DM) system. The DES DM system includes (1) middlewares for controlling and managing the processing jobs, and serve as an application container encapsulating the scientific codes; and (2) DES archive, which includes filesystem nodes, a relational database and a data access framework, to support the pipeline processing, data storage and scientific analyzes. Photometric solution module (PSM) were run on photometric nights to determine the zeropoints (ZP) and other photometric solutions. We remapped and coadded the images that lie within the pre-defined coadd tiles in the sky. When running the coaddition pipeline, we determined the ZP for each images using the photometric ZP from PSM, the magnitude offsets between overlapping images, and the sky brightness ratio for CCDs within a given exposure. We also applied aperture correction and color-term correction to the coadded catalogs. Satisfactory photometric and astrometric precision were achieved. These enabled initial estimation of photometric redshifts using ANNz codes, trained from 5000 galaxies with spectroscopic redshifts. RMS in the photometric redshifts ranges from 0.05 to 0.1 in sigma_z/(1+z) for redshift extended to z=1. We used the BCS data to optically confirm and estimate redshifts for four of the highest S/N galaxy clusters discovered with the South Pole Telescope using the Sunyaev-Zel'dovich Effect.

  12. Partial pressure (or fugacity) of carbon dioxide, salinity and other variables collected from Surface underway observations using Barometric pressure sensor, Carbon dioxide (CO2) gas analyzer and other instruments from RIO BLANCO in the English Channel, Mediterranean Sea and others from 2009-12-13 to 2010-12-14 (NODC Accession 0117291)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NCEI Accession 0117291 includes Surface underway data collected from RIO BLANCO in the English Channel, Mediterranean Sea, North Atlantic Ocean, South Atlantic...

  13. A propósito de la semiótica y las ciencias humanas. (Comentario al artículo de Desiderio Blanco

    Directory of Open Access Journals (Sweden)

    Óscar Quezada Machiavello

    2011-05-01

    Full Text Available Desiderio Blanco ha presentado una ponencia al Seminario-Taller deInvestigación «Fernando Tola Mendoza» organizado por la Facultad de Letras yCiencias Humanas de la Universidad Nacional Mayor de San Marcos tituladaSemiótica y Ciencias Humanas en la que reflexiona en torno a esa relación en laperspectiva de la interdisciplinariedad. En un primer momento, da cuenta de laconfluencia de disciplinas en la que nace la semiótica moderna y explicasomeramente las dos direcciones que sigue (semiología, que se ocupa del signo; ysemiótica, que se ocupa de la significación en discurso. Asume luego la opción dela semiótica tal como es caracterizada a partir de la obra de A. J. Greimas. El métodosemiótico consiste, entonces, en observar de dos modos cómo se genera lasignificación en el discurso: sea que se trate de la significación en el discurso terminadoo, más bien, en el discurso en acto. El primer modo se vincula con la etapaestructuralista y generativa de la semiótica (que se resume del modo más económicoen el modelo del recorrido generativo. El segundo modo, sin abandonar el anterior,quiere rendir cuenta del discurso viviente, y no solamente de sus estructurasformales desprendidas de su enunciación. Desde ese momento, a los paradigmasestructural y generativo se suma el paradigma tensivo y sensible: en consecuencia,prevalecerá el punto de vista de la praxis enunciativa en cuanto que «aventaja», sinreemplazarlo, al del recorrido generativo.En un segundo momento, Blanco identifica de modo muy general los aportesde la lingüística, de las ciencias cognitivas, de las corrientes formalistas, de lafenomenología y de la filosofía. Para terminar de caracterizar la problemática de lainterdisciplinariedad, profundiza el concepto-modelo de praxis enunciativa quecondensa de modo más económico la elaboración teórica actual.Ante el pedido que se me ha hecho de comentar esa ponencia, he optado ya nopor pensar las ciencias humanas desde el

  14. Epidemiología de la enfermedad de Chagas en el municipio Andrés Eloy Blanco, Lara, Venezuela: infestación triatomínica y seroprevalencia en humanos Epidemiology of Chagas disease in Andrés Eloy Blanco, Lara, Venezuela: triatomine infestation and human seroprevalence

    Directory of Open Access Journals (Sweden)

    Claudina Rodríguez-Bonfante

    2007-05-01

    Full Text Available Se realizó un despistaje serológico y recolección de vectores en cuatro comunidades rurales del municipio Andrés Eloy Blanco, Estado Lara, Venezuela. La muestra fue escogida en forma sistemática y aleatoria basada en conglomerados familiares. Se muestrearon 869 habitantes para determinar anticuerpos anti-Trypanosoma cruzi y anti-Leishmania sp. por inmunofluorescencia indirecta, aceptando como positivo diluciones > a 1:32 para anticuerpos anti-T. cruzi no reactivos para antígenos de Leishmania sp., obteniendo una frecuencia de anticuerpos en la muestra de 6,9% (n = 60; de los cuales 46,66% son femeninos, 53,33% masculinos y 60% mayores de 40 años. Se observó que 5 (8,33% de los seropositivos eran menores de 10 años y 10 (16,66% menores de 20 años. Rhodnius prolixus y Panstrongylus geniculatus fueron los triatominos capturados, con índice de infestación de 1,9 y 10,54%, índice de colonización, del 0 y 18,18% en las viviendas infestadas e índice de infección a T. cruzi del 20 y 5,07%, respectivamente. Los resultados sugieren que existe una transmisión activa de la enfermedad de Chagas en el Municipio Andrés Eloy Blanco en las últimas dos décadas y que P. geniculatus está substituyendo a R. prolixus como vector de la enfermedad de Chagas.A seroepidemiological survey and vector captures were performed in four rural communities in Andrés Eloy Blanco, Lara State, Venezuela. Systematic random sampling was based on family clusters, with samples drawn from 869 individuals to determine anti-Trypanosoma cruzi and anti-Leishmania sp. antibodies by indirect immunofluorescence. Positive individuals were defined as > 1:32 for anti-T. cruzi antibody and non-reactive to Leishmania sp. antigen, revealing an antibody frequency of 6.9% (n = 60, of whom 46.66% were females and 53.33% males and 60% were over 39 years of age. Some 5 (8.33% seropositive individuals were under 10 years of age and 10 (16.66% under 20 years. Rhodnius prolixus and

  15. CrWSKP1, an SKP1-like Gene, Is Involved in the Self-Incompatibility Reaction of "Wuzishatangju" (Citrus reticulata Blanco).

    Science.gov (United States)

    Li, Peng; Miao, Hongxia; Ma, Yuewen; Wang, Lu; Hu, Guibing; Ye, Zixing; Zhao, Jietang; Qin, Yonghua

    2015-01-01

    Plant S-phase kinase-associated protein 1 (SKP1) genes play crucial roles in plant development and differentiation. However, the role of SKP1 in citrus is unclear. Herein, we described a novel SKP1-like gene, designated as CrWSKP1, from "Wuzishatangju" (Citrus reticulata Blanco). The cDNA sequence of CrWSKP1 is 779 base pairs (bp) and contains an open reading frame (ORF) of 477 bp. The genomic sequence of the CrWSKP1 gene is 1296 bp with two exons and one intron. CrWSKP1 has high identity with SKP1-like genes from other plant species within two conserved regions. Approximately 85% of pollen tubes of self-pollinated CrWSKP1 transgenic tobaccos became twisted at four days after self-pollination. Pollen tube numbers of self-pollinated CrWSKP1 transformants entering into ovules were significantly fewer than that of the control. Seed number of self-pollinated CrWSKP1 transformants was significantly reduced. These results suggested that the CrWSKP1 is involved in the self-incompatibility (SI) reaction of "Wuzishatangju". PMID:26370985

  16. Chilling Temperature Enhances Ouality Reduction in Postharvest 'Shatangju' ( Citrus reticulata Blanco) Fruit%冷害导致砂糖橘果实品质劣变

    Institute of Scientific and Technical Information of China (English)

    庞学群; 陈燕妮; 黄雪梅; 汪跃华; 胡位荣; 张昭其

    2008-01-01

    将砂糖橘(Citrus reticulata Blanco)果实分别置于1、3、6和9℃下贮藏,比较其贮藏效果及冷害对果实品质的影响.结果表明:砂糖橘最适贮藏温度为6℃,在1~3℃贮藏易发生冷害.冷害导致果实外观品质下降,果肉乙醛和乙醇含量累积,果肉异味,品质下降.1℃贮藏的果实呼吸速率和乙烯释放速率较6℃高,丙二醛(MDA)含量增加,丙酮酸脱羧酶(PDC)和乙醇脱氢酶(ADH)活性大幅度提高.说明在冷害温度下,砂糖橘果肉异味是由于乙醛和乙醇累积产生,而果实呼吸速率的提高与PDC和ADH活性的增加密切相关.

  17. Evaluación del crecimiento y supervivencia en larvas de camarón blanco Litopenaeus vannamei usando como fuente de alimento microalgas vivas y congeladas

    Directory of Open Access Journals (Sweden)

    Elifonso Isiordia Pérez:

    2007-05-01

    Full Text Available Resumen matraces de 1.5 litros de capacidad con 5 El objetivo del presente rabajo fue evaluar el eplicas cada tratamiento. La densidad de efecto de una dieta monoalgal a base de dos microalgas a suministrar fue de 50,000 células presentaciones Tetraselmis sp. (vivas y / mililitro. Conforme mudaban de estadio se congeladas:producto comercial: INLAND hacía conteo de organismos vivos y se media Seafarm® en la supervivencia y crecimiento longitud El mayor porcentaje de supervivencia en larvas de camarón blanco Litopenaeus y crecimiento se registró en las larvas vannamei en estadios larvales desde limentadas con Tetraselmis sp. vivas (97.3 Protozoea 1 (PZ1 a Protozoea 3 (PZ3. El ±4.6 en PZI, 94.1 ± 2.13 en PZ2 y 30.7±12.6 experimento se realizó en las instalaciones del en PZ3. Sin embargo este resultado no es Centro de Investigación en Alimentación y comparable a los obtenidos con otras especies Desarrollo (CIAD, Unidad Mazatlán Sinaloa. El de microalgas como Chaetoceros muelleri e estudio se realizó bajo condiciones controladas Isochrysis galbana. de temperatura (28°C, salinidad (35‰ y fotoperiodo (12 h luz / oscuridad. Se sembraron 150 organismos en nauplio V en

  18. Character impact odorants of Citrus Hallabong [(C. unshiu Marcov x C. sinensis Osbeck) x C. reticulata Blanco] cold-pressed peel oil.

    Science.gov (United States)

    Choi, Hyang-Sook

    2003-04-23

    The volatile components of Hallabong ([C. unshiu Marcov x C. sinensis Osbeck] x C. reticulata Blanco) cold-pressed peel oil were quantitatively and qualitatively determined by use of two internal standards with GC, GC-MS, and GC-olfactometry. According to instrumental analysis by GC and GC-MS, limonene (90.68%) was the most abundant compound, followed by sabinene (2.15%), myrcene (1.86%), and gamma-terpinene (0.88%). Flavor dilution (FD) factors of the volatile flavor components from Hallabong peel oil were determined by aroma extract dilution analysis. Furthermore, relative flavor activity was investigated by means of FD factor and weight percent. The highest FD factors were found for citronellal and citronellyl acetate, and delta-murollene showed a higher relative flavor activity. Results of sniff testing of the original oil and its oxygenated fraction revealed that citronellal, cis-beta-farnesene, and citronellyl acetate were regarded as the character impact odorants of Hallabong peel oil, and citronellal gave the most odor-active character of Hallabong aroma. PMID:12696958

  19. The Dark Energy Spectrometer (DESpec): A Multi-Fiber Spectroscopic Upgrade of the Dark Energy Camera and Survey for the Blanco Telescope

    CERN Document Server

    Abdalla, F; Bacon, D; Bridle, S; Castander, F; Colless, M; DePoy, D; Diehl, H T; Eriksen, M; Flaugher, B; Frieman, J; Gaztanaga, E; Hogan, C; Jouvel, S; Kent, S; Kirk, D; Kron, R; Kuhlmann, S; Lahav, O; Lawrence, J; Lin, H; Marriner, J; Marshall, J; Mohr, J; Nichol, R C; Sako, M; Saunders, W; Soares-Santos, M; Thomas, D; Wechsler, R; West, A; Wu, H

    2012-01-01

    We describe an initiative to build and use the Dark Energy Spectrometer (DESpec), a wide-field spectroscopic survey instrument for the Blanco 4 meter telescope at Cerro Tololo InterAmerican Observatory (CTIO) in Chile. A new system with about 4000 robotically positioned optical fibers will be interchangeable with the CCD imager of the existing Dark Energy Camera (DECam), accessing a field of view of 3.8 square degrees in a single exposure. The proposed instrument will be operated by CTIO and available for use by the astronomy community. Our collaboration proposes to use DESpec to conduct a wide, deep spectroscopic survey to study Dark Energy. In a survey of about 350 nights, the DESpec collaboration proposes to obtain spectroscopic redshifts for about 8 million galaxies over 5000 square degrees selected from the Dark Energy Survey (DES). This Dark Energy Spectroscopic Survey will advance our knowledge of cosmic expansion and structure growth significantly beyond that obtainable with imaging-only surveys. Sinc...

  20. La Preparación Física Profesional en tabaqueros de la Fábrica Serafín Sánchez Valdivia en Arroyo Blanco.

    Directory of Open Access Journals (Sweden)

    Luis Bécquer Quesada

    2009-10-01

    Full Text Available La preparación física profesional es un proceso especializado y dirigido al desarrollo de las capacidades físicas, psíquicas y de hábitos motores en los trabajadores, lo que resulta imprescindible para elevar la efectividad y la capacidad de trabajo. Para el presente trabajo se elaboró un sistema de ejercicios (contracción muscular, flexibilidad para contribuir al mejoramiento de la preparación física profesional en los tabaqueros, de la fábrica Serafín Sánchez Valdivia en Arroyo Blanco. En esta investigación se tomó una población integrada por los 39 tabaqueros de la entidad y como muestra 10 de ellos, lo que representa el (25.64%. El Objeto de estudio de esta investigación es el Proceso de Preparación para la Salud de los Tabaqueros y como métodos se utilizó el Teórico (análisis-síntesis, histórico-lógico, inductivo-deductivo y Enfoque de sistema, Empíricos: la observación, encuesta, entrevista y Validación mediante consulta a especialistas.

  1. Heat shock transcription factors expression during fruit development and under hot air stress in Ponkan (Citrus reticulata Blanco cv. Ponkan) fruit.

    Science.gov (United States)

    Lin, Qiong; Jiang, Qing; Lin, Juanying; Wang, Dengliang; Li, Shaojia; Liu, Chunrong; Sun, Chongde; Chen, Kunsong

    2015-04-01

    Heat shock transcription factors (Hsfs) play a role in plant responses to stress. Citrus is an economically important fruit whose genome has been fully sequenced. So far, no detailed characterization of the Hsf gene family is available for citrus. A genome-wide analysis was carried out in Citrus clementina to identify Hsf genes, named CcHsfs. Eighteen CcHsfs were identified and classified into three main clades (clades A, B and C) according to the structural characteristics and the phylogenetic comparison with Arabidopsis and tomato. MEME motif analysis highlighted the conserved DBD and HR-A/B domains, which were similar to Hsf protein structures in other species. Gene expression analysis in Ponkan (Citrus reticulata Blanco cv. Ponkan) fruit identified 14 Hsf genes, named CrHsf, as important candidates for a role in fruit development and ripening, and showed seven genes to be expressed in response to hot air stress. CrHsfB2a and CrHsfB5 were considered to be important regulators of citrate content and showed variation in both developmentally-related and hot air-triggered citrate degradation processes. In summary, the data obtained from this investigation provides the basis for further study to dissect Hsf function during fruit development as well as in response to heat stress and also emphasizes the potential importance of CrHsfs in regulation of citrate metabolism in citrus fruit.

  2. CrWSKP1, an SKP1-like Gene, Is Involved in the Self-Incompatibility Reaction of "Wuzishatangju" (Citrus reticulata Blanco).

    Science.gov (United States)

    Li, Peng; Miao, Hongxia; Ma, Yuewen; Wang, Lu; Hu, Guibing; Ye, Zixing; Zhao, Jietang; Qin, Yonghua

    2015-09-09

    Plant S-phase kinase-associated protein 1 (SKP1) genes play crucial roles in plant development and differentiation. However, the role of SKP1 in citrus is unclear. Herein, we described a novel SKP1-like gene, designated as CrWSKP1, from "Wuzishatangju" (Citrus reticulata Blanco). The cDNA sequence of CrWSKP1 is 779 base pairs (bp) and contains an open reading frame (ORF) of 477 bp. The genomic sequence of the CrWSKP1 gene is 1296 bp with two exons and one intron. CrWSKP1 has high identity with SKP1-like genes from other plant species within two conserved regions. Approximately 85% of pollen tubes of self-pollinated CrWSKP1 transgenic tobaccos became twisted at four days after self-pollination. Pollen tube numbers of self-pollinated CrWSKP1 transformants entering into ovules were significantly fewer than that of the control. Seed number of self-pollinated CrWSKP1 transformants was significantly reduced. These results suggested that the CrWSKP1 is involved in the self-incompatibility (SI) reaction of "Wuzishatangju".

  3. Heat shock transcription factors expression during fruit development and under hot air stress in Ponkan (Citrus reticulata Blanco cv. Ponkan) fruit.

    Science.gov (United States)

    Lin, Qiong; Jiang, Qing; Lin, Juanying; Wang, Dengliang; Li, Shaojia; Liu, Chunrong; Sun, Chongde; Chen, Kunsong

    2015-04-01

    Heat shock transcription factors (Hsfs) play a role in plant responses to stress. Citrus is an economically important fruit whose genome has been fully sequenced. So far, no detailed characterization of the Hsf gene family is available for citrus. A genome-wide analysis was carried out in Citrus clementina to identify Hsf genes, named CcHsfs. Eighteen CcHsfs were identified and classified into three main clades (clades A, B and C) according to the structural characteristics and the phylogenetic comparison with Arabidopsis and tomato. MEME motif analysis highlighted the conserved DBD and HR-A/B domains, which were similar to Hsf protein structures in other species. Gene expression analysis in Ponkan (Citrus reticulata Blanco cv. Ponkan) fruit identified 14 Hsf genes, named CrHsf, as important candidates for a role in fruit development and ripening, and showed seven genes to be expressed in response to hot air stress. CrHsfB2a and CrHsfB5 were considered to be important regulators of citrate content and showed variation in both developmentally-related and hot air-triggered citrate degradation processes. In summary, the data obtained from this investigation provides the basis for further study to dissect Hsf function during fruit development as well as in response to heat stress and also emphasizes the potential importance of CrHsfs in regulation of citrate metabolism in citrus fruit. PMID:25596345

  4. Modificaciones en la grasa del atún blanco (Thunnus alalunga debidas a la fabricación y almacenamiento de su conserva

    Directory of Open Access Journals (Sweden)

    Navarro, María P.

    1991-06-01

    Full Text Available Modifications in fatty acid composition in white tuna (Thunnus alalunga ocurring at each stage of the cannig process, boiling and sterilization in soybean oil, were studied. Boiling was performed in brine and two sterilization times (55 and 90 minutes as well as the effects of storage for one year were tested. Boiling had no effect on fatty acid composition or the n-3/n-6 ratio. However canned tuna absorbed soybean oil during sterilization, causing an increase of the percentage of C18:1, C18:2 and C18:3 and a decrease in C20:5 and C22:6. Therefore, unsaturated fatty acids to saturated fatty acids (PS/S ratio changed and the n-3/n-6 ratio declined from 7.03 to 0.59 compared with raw tuna. Due to the whole fat enrichment, canned fish showed a slight loss of PUFA (C20:5 and C22:6 and a increase of C18:1, C18:2 and C18:3. The latter effect was more marked in the preserves as a consequence of one year storage. The convenience of using for cannig an oil containing a lower amount of polyunsaturated fatty acid in order to remain the original n-3/n-6 ratio of the raw tuna is discussed.Se estudiaron los cambios que se producen en la grasa del atún blanco en cada una de las etapas que intervienen en el proceso de fabricación y almacenamiento de su conserva: cocción en salmuera y esterilización practicada en aceite de soja. Se estudiaron dos tiempos diferentes de esterilización (55 y 90 minutos y el almacenamiento por espacio de 1 año. La cocción en salmuera no afectó a la composición en ácidos grasos de los lípidos del pescado ni a la relación n-3/n-6. Sin embargo, durante la esterilización, el atún absorbió el aceite utilizado como cobertura, lo que produjo un aumento porcentual en el nivel de C18:1, C18:2, C18:3 y una disminución en C20:5 y C22:6. La relación ácidos grasos insaturados a saturados (PS/S cambió y la n-3/n-6 disminuyó desde 7,03 a 0,59 comparado con atún crudo. En el pescado en conserva, debido al enriquecimiento total

  5. Respuesta inmunomoduladora de la superóxido dismutasa en juveniles de camarón blanco (Litopenaeus vannamei expuestos a inmunoestimulantes

    Directory of Open Access Journals (Sweden)

    2005-01-01

    Full Text Available Se estudió la actividad inmunomoduladora de la manganeso superóxido dismutasa (MnSOD en juveniles de camarón blanco (Litopenaeus vannamei expuestos a diferentes inmunoestimulantes. Organismos cuyo peso varió entre 0.7 y 1.0 g fueron inmersos durante 6 h en soluciones de β-glucano, lipopolisacárido (LPS, fucoidán, y Vibrio penaeicida muerto por calor. Se determinó la actividad enzimática de la MnSOD en los organismos para evaluar si los diferentes inmunoestimulantes utilizados eran capaces de inducir actividad antioxidante. Los inmunoestimulantes probados activaron el sistema inmune de los camarones, mostrando un incremento generalizado en la respuesta antioxidante 48 h después del ensayo. El mayor incremento en la actividad de la enzima (3.2 veces superior al grupo control se registró cuando se utilizó la bacterina. Se expusieron los camarones a V. penaeicida 10 días después de la exposición a los inmunoestimulantes, obteniendo un incremento en la actividad antioxidante de los camarones expuestos previamente a β-glucano, LPS y fucoidán. La respuesta enzimática más alta se obtuvo con los organismos estimulados con β-glucano (2.5 veces superior al control. Este estudio demostró la capacidad de los juveniles de camarón para mejorar la respuesta antioxidante después de ser expuestos a inmunoestimulantes y a una bacteria patógena.

  6. Influências da Guerra Fria no discurso nacionalista argentino. O retrato dos conflictos internacionais no Semanário Nacionalista Azul y Blanco

    Directory of Open Access Journals (Sweden)

    Maria Valeria Galvan

    2014-12-01

    Full Text Available As notícias sobre as guerras internacionais desencadeadas no marco da Guerra Fria têm sido utilizadas pela discursividade nacionalista em pós do seu programa político próprio, mais vinculado ao contexto local do que ao internacional.O semanário político dos anos cinqüenta e sessenta, Azul y Blanco, virou testemunha disso. Este, embora tenha-se concentrado principalmente na política nacional, deixou filtrar em suas páginas notícias internacionais que expunham as problemáticas mais importantes da Guerra Fria nesses anos, desde uma óptica nacionalista que ia mais longe das identidades nacionais para construir um “nós” geograficamente mais amplo. Assim, apesar da maior relevância da Revolução Cubana nas páginas da revista, a situação do bloco oriental europeu e a Guerra do Vietnã foram também importantes na secção internacional. Essas notícias eram escritas por correspondentes e editores argentinos e estrangeiros. Ambos argentinos e estrangeiros tiveram posicionamentos políticos e ideológicos que ficaram comprometidos com seus respectivos cenários locais. Assim, eles contribuíram especialmente para as transformações que atravessava o discurso nacionalista local. Nesse sentido, as redefinições ideológicas e políticas do nacionalismo argentino desses anhos nutriram-se também de aqueles olhares.

  7. Insectos asociados a fenómenos de descomposición cadavérica en cerdo blanco ( Sus scrofa en el municipio de Mosquera (Cundinamarca

    Directory of Open Access Journals (Sweden)

    Ospina Fonseca María Fernanda

    2002-11-01

    Full Text Available El estudio tuvo como objeto iniciar la investigación de los insectos asociados a fenómenos dedescomposición en una zona alta, específicamente en el municipio de Mosquera (Cundina-marca. Para lograrlo se usó como biomodelo cerdo blanco (Sus scrofa por su similitud conlos humanos, éste se sacrificó y se dejó al aire libre durante ocho meses. El proceso de des-composición se dividió en cinco fases: fresco (2 días, hinchado (13 días, descomposiciónactiva (15 días, descomposición avanzada (31 días y restos secos (160 días. Durante esteperiodo se recogieron 3.539 individuos, el 86.69% pertenecientes a Diptera y el 8.36% aColeoptera. Las familias más numerosas de Diptera fueron Muscidae (62.08% y Calliphoridae(14.44%, mientras que en Coleoptera fueron Silphidae (68.58% y Staphylinidae (14.86%.Se pudo observar la participación de los géneros Calliphora, Paralucilia y Chloroprocta, estosgéneros no aparecen en zonas bajas y podrían ser propios de zonas altas. No se presentarongrupos exclusivos para cada fase del proceso, aunque la presencia y abundancia de Diptera fuemayor al inicio de la descomposición, mientras que Coleoptera (exceptuando Silphidae fuemás abundante y activo al final del proceso. La lluvia ocasionó una "regresión" en la sucesiónde insectos. El presente trabajo no constituye una herramienta de carácter legal pero es elprimer trabajo sobre entomología forense realizado en la Sabana de Bogotá y es base paratrabajos posteriores en la zona.

  8. Flujos de detritos y aluviones históricos en la cuenca del río Blanco (32°55'-33°10' y 69°10'-69°25', Mendoza

    Directory of Open Access Journals (Sweden)

    María Solange Páez

    2013-12-01

    Full Text Available La cuenca del río Blanco está sometida a un clima árido con precipitaciones medias anuales de 400 mm. Las lluvias intensas y de corta duración están concentradas en los tres meses de verano actuando frecuentemente como disparadoras de flujos de detritos y aluviones en el Cordón del Plata y generando variaciones en el caudal del río Blanco por aporte extraordinario de estos eventos. Información sobre la ocurrencia de flujos de detritos y aluviones reportados entre 1942 y 2001 en la cuenca del río Blanco fue recopilada y analizada a partir de crónicas periodísticas, datos aportados por los pobladores, registros pluviométricos de la zona y años de anomalías climáticas, tratando de establecer la precipitación mínima requerida para desestabilizar estas pendientes. Durante el período mencionado se registraron 18 flujos de detritos y aluviones, de los cuales los más importantes ocurrieron en 1960, 1967, 1970 y 1982; y produciéndose dos eventos en los años 1954, 1967, 1982 y 1993, sin embargo la intensidad de los eventos de flujos de detritos y aluviones parece incrementarse durante los años de anomalías climáticas correspondientes a la fase cálida del fenómeno ENOS "El Niño".

  9. Differences of Biological Characters Between Mingliutianju(Citrus reticuiata Blanco cv.Mingliutianju)and Chuntianju (Citrus reticuiata Blanco cv.Chuntianju)%春甜橘及其芽变品种明柳甜橘特性的比较研究

    Institute of Scientific and Technical Information of China (English)

    曾继吾; 曹水良; 姜波; 钟云; 邓贵明; 周碧容; 彭成绩; 易干军

    2012-01-01

    Mingliutianju (Citrus reticuiata Blanco cv. Mingliutianju, MT), a new cultivar selected from Chuntianju (Citrus reticuiata Blanco cv.Chuntianju, CT)through bud mutation, has been extensively cultivated in South China. Their fruits have excellent quality, and can be harvested during the last ten days of February and the middle ten days of March. In present paper, we systematically compared differences of morphological characters between CT and MT through years of efforts on both field experiments and laboratory analysis. Our results showed that CT and MT were similar to each other in phonological period and habits of bearing fruits and growth. Compared with CT, MT showed more attractive agricultural characteristics. These include more vigorous growth, higher and more stable yield, an increase of 37% in average fruit weight, more obvious stria and thicker fruit peels, and most importantly, much less preharvest cracking rates. MT and CT showed no significant difference in fruit texture, soluble solids content, total sugar and vitamin C, and dietary fiber in pulp. Total acid content, crude fiber in pulp and peels were significantly higher in MT than those in CT.%‘明柳甜橘’是从‘春甜橘’中选育出来的柑橘品种,果实品质优良,在粤东地区成熟期为2月下旬至3月中旬.本研究经过多年田间观察和分析,比较系统地分析了明柳甜橘与春甜橘形态特征,表明两者物候期、生长和结果习性相似,但明柳甜橘树势生长相对旺盛,坐果率高,平均单果重约比春甜橘大37.0%,而且果皮较厚,果面有明显柳纹,采前裂果少.果实品质方面,两者可溶解性固形物、总糖、Vc和果肉中膳食纤维含量差异不显著,但明柳甜橘的总酸含量、果肉及果皮中粗纤维含量显著高于春甜橘.

  10. Aplicação de ácido giberélico (GA3 em précolheita de tangerina ‘Poncã’ (Citrus reticulata blanco = Application of Gibberelic acid (GA3 on preharvest of ‘Ponkan’ mandarin (Citrus reticulata Blanco fruit

    Directory of Open Access Journals (Sweden)

    Júnior Cesar Modesto

    2006-01-01

    Full Text Available O experimento foi instalado em pomar comercial de tangerineira ‘Poncã’ (Citrus reticulata Blanco, enxertadas sobre tangerineira ‘Cleópatra’ (Citrus reshni Hort. ex Tan., em Pratânia, Estado de S��o Paulo, Brasil. Adotouse o delineamento experimental em blocoscasualizados com 4 repetições. Os tratamentos empregados foram: 0 (controle, 5, 10, 15 e 20 mg L1 de ácido giberélico (GA3. A aplicação dos tratamentos foi realizada com atomizador tratorizado. Na mudança de coloração dos frutos, utilizaramse 5,9 litros de solução por planta, com adição de 0,03% de surfatante não iônico com 25% de Alquil fenol poliglicoléter. As análises da qualidade dos frutos foram realizadas aos 13, 45, 75 e 111 dias após a aplicação dos tratamentos (DAT. Não se verificou influência da aplicação de GA3 na massa fresca dos frutos, no conteúdo de sólidos solúveis totais, na acidez total titulável e “ratio”. No entanto foi observado atraso na colheita de frutos, induzido pelo efeito fisiológico do ácido giberélico. The experiment was carried out in a commercial orchard of ‘Ponkan’ mandarin (Citrus reticulata Blanco, grafted on ‘Cleopatra’ mandarin (Citrus reshni Hort. ex Tan., in Pratânia, state of São Paulo, Brazil. The utilized experimental design was composed of randomized blocks of four replications. The treatments consisted of: 0 (control,5, 10, 15 and 20 mg L1 of Gibberellic acid (GA3. Atomizer equipment was utilized for the application of the treatments. Each plant received 5.9 liters of solution, in which 0.03% of nonionic surfactant with 25% of alkylphenol ethoxylate was added, in order to change fruit coloration. The analyses of fruit quality were developed on the 13th, 45th, 75th and 111th days after the application of the treatments (DAT. Results showed that the application of GA3 did not affect fruit fresh mass, total soluble solids content, total titulable acidity and ratio. However, a delay in fruit

  11. Dimorfismo sexual en la función y biogénesis mitocondriales en el tejido adiposo blanco de rata. Respuesta a una dieta hiperlipídica

    OpenAIRE

    Amengual Cladera, Emilia

    2012-01-01

    Los resultados obtenidos demuestran que la función y la biogénesis mitocondriales del tejido adiposo blanco dependen del sexo, del depósito y de la dieta ingerida, y que el dimorfismo sexual se manifiesta ya a edades tempranas. Las hormonas ováricas serían responsables, en parte, de este dimorfismo sexual, especialmente en el depósito gonadal, lo que vincula, por tanto, a los estrógenos, al mayor grado de diferenciación mitocondrial y a la expresión de adiponectina. La dieta hiperlipídica ate...

  12. Las hormonas sexuales como moduladoras de la función mitocondrial y de la síntesis de adiponectina en el tejido adiposo blanco y en el músculo esquelético de rata

    OpenAIRE

    Capllonch Amer, Gabriela

    2014-01-01

    El objetivo principal de esta tesis es caracterizar los efectos de las hormonas sexuales sobre la función mitocondrial del tejido adiposo blanco (TAB) y del músculo, y su relación con la síntesis de adiponectina. Nuestros resultados establecen el 17beta-estradiol como estimulador de la funcionalidad mitocondrial y de la síntesis de adiponectina en adipocitos y músculo, mientras que la testosterona actúa como un elemento negativo sobre los mismos procesos en los adipocitos. Asimismo, se ha est...

  13. Estructura de procesamiento unificada para la detección de señales de comunicación y navegación en presencia de ruido blanco e interferencia por acceso múltiple

    OpenAIRE

    Juan Carlos Vélez Díaz

    2005-01-01

    El propósito de este trabajo es presentar un algoritmo unificado de búsqueda y detección de señales de comunicación y navegación para ser utilizado durante la primera etapa de entrada en servicio de un módem satelital en un sistema de comunicaciones CDMA. Las características del detector y la probabilidad de detección D, teniendo en cuenta la interferencia por acceso múltiple y ruido blanco gaussiano, en una red satelital, son encontradas con la ayuda de un modelo de imitación...

  14. para la detección de señales de comunicación y navegación en presencia de ruido blanco e interferencia por acceso múltiple

    Directory of Open Access Journals (Sweden)

    Juan Carlos Vélez Díaz

    2005-01-01

    Full Text Available El propósito de este trabajo es presentar un algoritmo unificado de búsqueda y detección de señales de comunicación y navegación para ser utilizado durante la primera etapa de entrada en servicio de un módem satelital en un sistema de comunicaciones CDMA. Las características del detector y la probabilidad de detección D, teniendo en cuenta la interferencia por acceso múltiple y ruido blanco gaussiano, en una red satelital, son encontradas con la ayuda de un modelo de imitación

  15. Partial pressure (or fugacity) of carbon dioxide, salinity and other variables collected from Surface underway observations using Carbon dioxide (CO2) gas analyzer, Shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement and other instruments from the MONTE OLIVIA and Rio Blanco in the English Channel, North Atlantic Ocean and others from 2009-01-18 to 2009-12-23 (NODC Accession 0117337)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0117337 includes Surface underway, chemical, meteorological and physical data collected from MONTE OLIVIA and Rio Blanco in the English Channel,...

  16. El factor de crecimiento transformante beta como blanco terapéutico Transforming growth factor-beta as a therapeutic target

    Directory of Open Access Journals (Sweden)

    Francisco Javier Gálvez-Gastélum

    2004-08-01

    Full Text Available El factor de crecimiento transformante beta (TGF-beta es una familia de proteínas que incluye al TGF-beta, activinas y a la proteína morfogénica de hueso (BMP, por sus siglas en inglés, citocinas que son secretadas y se relacionan estructuralmente en diferentes especies de metazoarios. Los miembros de la familia del TGF-beta regulan diferentes funciones celulares como proliferación, apoptosis, diferenciación, migración, y tienen un papel clave en el desarrollo del organismo. El TGF-beta está implicado en varias patologías humanas, incluyendo desórdenes autoinmunes y vasculares, así como enfermedades fibróticas y cáncer. La activación del receptor del TGF-beta propicia su fosforilación en residuos de serina/treonina y dispara la fosforilación de proteínas efectoras intracelulares (smad, que una vez activas se translocan al núcleo para inducir la transcripción de genes blanco, y así regular procesos y funciones celulares. Se están desarrollando novedosas estrategias terapéuticas encaminadas a corregir las alteraciones presentes en patologías que involucran al TGF-beta como actor principal.Transforming growth factor-beta (TGF-beta family members include TGF-beta, activins, and bone morphogenetic proteins (BMP. These proteins are structurally related cytokines secreted in diverse Metazoans. TGF-beta family members regulate cellular functions such as proliferation, apoptosis, differentiation, and migration, and play an important role in organism development. Deregulated TGF-beta family signaling participates in various human pathologies including auto-immune diseases, vascular disorders, fibrotic disease, and cancer. Ligand-induced activation of TGF-beta family receptors with intrinsic serine/threonine kinase activity, triggers phosphorylation of the intracellular effectors of TGF-beta signaling, the Smads proteins. Once these proteins are activated they translocate into the nucleus, where they induce transcription of target

  17. Evaluación in vivo del efecto cicatrizante de un gel a base de quitosano obtenido de exoesqueleto de camarón blanco Litopenaeus vannamei

    Directory of Open Access Journals (Sweden)

    Heimy Franceline Martínez Sánchez

    2014-06-01

    Full Text Available Healing effect of a chitosan-based gel obtained from the exoskeleton of white shrimp Litopenaeus vannamei and its evaluation in vivoTítulo corto: Evaluación del quitosano como cicatrizanteResumen:  En México alrededor del 62 % de la población sufre de accidentes causantes de alteraciones en la piel como quemaduras, heridas y diabetes principalmente. Para atender esta problemática, se propone el uso de un gel de quitosano, obtenido del exoesqueleto de camarón ya que presenta actividad antimicrobiana e inmunológica acelerando la cicatrización. Se evaluó el efecto sinérgico sobre la velocidad de cicatrización, aplicándolo en heridas de 1 cm2 infringidas a 48 ratones albinos, agrupados en cuatro tratamientos; Quitosano 0.15 y 0.30 %, producto cicatrizante (Ketanserina al 2 % y blanco (testigos sin tratamiento. El tiempo para la cicatrización sin tratamiento y el producto comercial fue 14 días, teniendo el control un efecto cicatrizante del 0 %, mientras que los geles de quitosano 0.15 y 0.30 % cicatrizaron en 7 días (P> 0.05 con efecto cicatrizante del 58 % para el quitosano 0.15 y 64 % para el quitosano 0.30.Palabras clave: piel, heridas, gel, quitosano, cicatrización.Abstract: Skin problems in Mexico have steadily increased (62 % by burns, wounds and diabetes mainly. To solve this problem, chitosan can be implemented; this polysaccharide has an antimicrobial and immunology activity against bacteria and fungi, accelerating healing. Therefore, synergistic effect of chitosan gel on the rate of healing, obtained from the exoskeleton of shrimp was evaluated. This was tested by applying it 1 cm2 over inflicted wounds of 48 albino mice, of 45 days old and between 23 to 26 g of weight, during 14 days, and grouped into four treatments: 1 0.15 % chitosan 2 0.30 % chitosan, 3 commercial product 2 % Ketanserin and 4 A batch of untreated controls. The time required for healing without treatment was 14 days, and with the utilization of 0

  18. Salud pública e inestabilidad política en Venezuela durante los gobiernos de Guzmán Blanco, 1870-1888

    Directory of Open Access Journals (Sweden)

    Camacho, Cristian

    2008-12-01

    Full Text Available In this paper, we analyze how during Guzmán Blanco governmental periods epidemic cycles generated a sense of distrust and political instability. The misinterpretation form governmental authorities lead to think that oppositionists promoted the closure of ports, a halt on exchange and limitations to the access to economic resources coming from foreign trade with the purpose of obtain political benefits. To avoid oppositionists politically use epidemics cycles, governmental action were addressed to prevent rumors and to put down any political action related to this matter. Gúzman government also efficiently carried out an information policy from consular offices aimed to take advantage from up-to-date information with respect to vessels movements and their internal health situation. Moreover, a set of highly effective national and international preventative measure were adopted in order to control and manage epidemic cycles.

    En este artículo se analiza cómo durante el guzmancismo, los ciclos epidémicos ocasionaban en el gobierno un ambiente de desconfianza y tensión política, porque de manera equivocada se pensaba que eran empleados por algunos opositores para incidir en el cierre de los puertos, paralizar el intercambio, cortar el flujo de recursos económicos provenientes del comercio exterior y obtener así beneficios políticos. El gobierno se movilizaba para evitar rumores y reprimir cualquier tipo de acción política al respecto, con el fin de impedir que la oposición diera uso político a los ciclos epidémicos; también ejecutaba con eficiencia una política de información que, desde los Consulados, le permitía estar al corriente acerca del movimiento de los barcos y su situación sanitaria interna; además se desarrolló un conjunto de previsiones nacionales e internacionales altamente benéficas en el control y manejo de los períodos epidémicos.

  19. Efecto del tratamiento térmico de desestabilización en el desgaste de hierros blancos de alto cromo

    Directory of Open Access Journals (Sweden)

    Iván Morales

    2009-11-01

    Full Text Available La resistencia a la abrasión de hierros fundidos de alto cromo puede ser mejorada mediante la aplicación de tratamientos térmicos específicos que favorezcan tanto la transformación de austenita en martensita, como la precipitación de carburos secundarios. En esta investigación se estudió, mediante microscopia óptica, el efecto de la temperatura de desestabilización entre 900oC y 1050oC de una aleación 26Cr2.5C2Mo de hierro blanco. La resistencia a la abrasión fue medida en términos de la pérdida de masa durante un ensayo de desgaste abrasivo según la norma ASTM G65. La resistencia a la abrasión de las muestras mejoró al ser tratada térmicamente mediante un proceso de desestabilización a una temperatura determinada, para lo cual se optimizó el tamaño de los carburos secundarios y la dureza superficial. / The heat treatments used to improve abrasion resistance of High-Chromium white casted irons (WCI tend to ease the retained austenite/martensite transformation temperature and favor carbide precipitation within the metallic matrix. In this paper, the effect of four different destabilization heat treatment temperatures was examined for a 26Cr2.5C2Mo WCI under means of optical microscopy. The specimens were obtained under two different casting process, regular sand-casting and permanent molding. The abrasion resistance was measured as mass loss in a dry sand/rubber wheel abrasion test according to ASTM G65. The results show that the solidification speed has a direct effect on the abrasion resistance; manly due to both the eutectic carbide size and its distribution. As predicted, the abrasion resistance of both samples was maximized under certain destabilization temperature, for which carbide size and hardness was optimized.

  20. 除草剂胺磺灵(Oryzalin)诱导椪柑四倍体的研究%Study on Induction of Tetraploid Citrus reticulata Blanco cv.Ponkan Using Herbicide Oryzalin

    Institute of Scientific and Technical Information of China (English)

    何建; 冯焱; 陈克玲; 李洪雯; 关斌; 王建辉

    2011-01-01

    以椪柑枝条为外植体,建立其无菌离体快繁体系,利用除草剂Oryza1in为诱变剂进行椪柑四倍体诱变处理,研究胺磺灵Oryzalin不同浓度和不同处理时间对椪柑四倍体诱导效果的影响,结果表明:椪柑四倍体诱导的最佳处理条件为40 mg/L浓度的Oryzalin浸泡茎段2d,诱导率最高为13.3%.%A study of inducing tetraploid by treating in vitro stem segment of Citrus reticutata Blanco cv. Ponkan was carried out under different concentrations of herbicide Oryzalin solution and different treated durations. The results showed that the highest induction rate of tetraploid Citrus reticulata Blanco cv. Ponkan was 13.3 % by treatment with 40 mg/L Oryzalin solution for 2 days.

  1. CHANGE OF MITOTIC BEHAVIOR AND ULTRA STRUCTURE OF 'FUJU' (Citrus reticulata Blanco) STEM-APEX CLONES AFTER SPACE FLIGHT%航天搭载后福橘(Citrus reticulata Blanco)茎尖无性系有丝分裂行为和细胞超微结构的变化

    Institute of Scientific and Technical Information of China (English)

    吴如健; 黄镜浩; 温寿星; 蔡子坚; 罗土炎; 陈良锋; 王周文

    2011-01-01

    By using conventional squash stain technique and ultrathin sectioning technique, the effects of space flight on mitotic behavior and ultrastructure were studied in the shoot apical meristem of ‘ Fuju' ( Citrus reticulata Blanco), which had been carried by China' s seed-breeding satellite, Shijian-8. The results showed that space flight had effect on the mutagenesis of stem-apical meristem. Abnormal mitosis with various degrees had been detected in 13 mutant clones, of which mitotic aberrations in clone ‘ 08004' were significantly higher than the others. The aberration rate of numerical abnormalities of chromosomes at metaphase, lagging chromosome, micronucleus, C-spindle, S-spindle and polyarch spindle in the clone ‘08004' was 0.34%, 0.69%, 0.86%, 0.17%, 1.20% and 1.03%, respectively. The ultrastructure of mesophyll cell in most clones was unchanged, but nucleus chromatin agglutination, chloroplast thylakoid disintegrated, autophagosome appeared, cell vacuolated, plasm olysis and the formation of apoptotic body were found in the clone ‘08004’, suggesting that programmed cell death (PCD) Nevertheless, no change in the mitochondrial structure was observed until terminal phase of PCD.%福橘(Citrus reticulata Blanco)茎尖经‘实践八号'育种卫星搭栽后,经组织培养获得其再生植株,以此为材料,结合常规压片法与超薄切片技术,研究航天搭载对福橘当代无性系细胞有丝分裂行为及细胞超微结构的影响.结果表明:航天搭载对福橘茎尖具有诱变作用,所得13个诱变无性系中,有丝分裂过程存在不同程度的异常,其中‘08004'无性系植株的有丝分裂畸变率明显高于其他无性系:中期染色体数目异常畸变率为0.34%,落后染色体畸变率为0.69%,微核畸变率为0.86%;并且有丝分裂过程中纺锤体结构发生异常,可见C-形(0.17%)或S-形纺锤体(1.20%),细胞发生多极分裂(1.03%).绝大多数航天搭载当代无性系

  2. PROPAGACIÓN POR ESTACAS JUVENILES DEL BALSO BLANCO (Heliocarpus americanus L. Sin. H. popayanensis UTILIZANDO PROPAGADORES DE SUBIRRIGACIÓN PROPAGATION OF WHITE BALSUM (Heliocarpus americanus L. Sin. H. popayanensis CUTTINGS USING NONMIST PROPAGATORS

    Directory of Open Access Journals (Sweden)

    Carolina Vásquez Restrepo

    2006-12-01

    Full Text Available El mercado mundial de edulcorantes orgánicos es una oportunidad para la panela, producto básico de la canasta familiar que representa ingresos importantes para la población rural colombiana. El balso blanco (Heliocarpus americanus L. Sin. H. popayanensis Hook & Arn. es la especie más usada en procesos de clarificación de la panela en Antioquia y las zonas cañeras húmedas colombianas. Pero la extracción de la corteza de árboles obtenidos de la regeneración natural comienza a ser insostenible, por el daño causado a los individuos y la presión creciente a este recurso. La prohibición del uso de sustancias químicas en procesos de clarificación de panela ha aumentado la demanda de la corteza del balso blanco. En este trabajo se estimó el enraizamiento de estacas juveniles de balso blanco, por propagadores de subirrigación. Se realizaron dos experimentos, utilizando ácido anaftalenacético (ANA. En el primero se evaluó el efecto del transporte, cicatrizante y sustrato sobre el enraizamiento de las estacas de balso blanco. El mejor medio de transporte fue en cristales de hidrogel para mantener la humedad de las estacas, sin utilizar cicatrizante y sembrándolas en el sustrato tierra (55 % de enraizamiento. En el segundo se analizó la influencia de la intensidad lumínica y el área foliar en el porcentaje de enraizamiento de las estacas. El más alto enraizamiento se obtuvo con el tratamiento de doble sombra y un área foliar de 20 cm² (25 % de enraizamiento. Aunque los mejores resultados indican un relativo éxito en el uso de medios de enraizamiento, es una primera aproximación para propagar esta especie que necesita ser protegida.The world market of organic edulcorants is an opportunity for “panela”, a basic domestic consumption product that provides important income to rural population. White balsum (Heliocarpus americanus L. Sin. H. popayanensis Hook & Arn. is the most used species in the panela clarification processes in

  3. PathRunner多功能检测车正"驶入"中国——访美国PSI(Pathway Services Inc)公司董事长Rudy Blanco

    Institute of Scientific and Technical Information of China (English)

    尚正强

    2007-01-01

    @@ 记者:PathRunner多功能道路检测车是第一次进入中国市场,您对中国道路检测市场有什么看法? Rudy Blanco:据了解,截止到2006年,中国高速公路通车里程已达4.53万公里,这是一个了不起的成就.随着高速公路通车里程的不断增多,中国道路养护的里程也在逐年增加,道路养护、维修的任务也越来越重,这为全世界道路养护设备生产厂家和养护施工承包商提供了许多拓展业务的机会.

  4. 桐花树多酚氧化酶同源基因片段的克隆及序列分析%Cloning and sequence analysis of polyphenol oxidase homologous gene from Aegiceras corniculatum (L.) Blanco

    Institute of Scientific and Technical Information of China (English)

    王芳; 董乐; 戴聪杰; 林娈; 欧巧慧

    2009-01-01

    以桐花树(Aegiceras corniculatum (L.) Blanco)叶为材料, 采用同源PCR克隆策略, 扩增桐花树多酚氧化酶(Polyphenol Oxidase, PPO)铜结合区之间的cDNA序列.该序列长度597 bp (Genbank accession No. GQ404509), 编码了一段由199 个氨基酸残基组成的多酚氧化酶保守区片段.桐花树PPO保守区片段具有PPO铜结合区A(CuA)的特征信号序列Hnswl.FFpFHRyyLyffE.同源比对表明, 该序列与GenBank上其他已有的植物多酚氧化酶氨基酸序列的同源性都在65%以上.

  5. Alterações químicas, físicas e físico-químicas da tangerina 'ponkan' (Citrus reticulata Blanco durante o armazenamento refrigerado Chemical, physical and physical-chemical changes on tangerina 'ponkan' (Citrus reticulata Blanco under refrigerated storage

    Directory of Open Access Journals (Sweden)

    Adriana Aparecida Souza Vale

    2006-08-01

    Full Text Available O objetivo proposto neste trabalho foi o de avaliar as alterações químicas, físicas e físico-químicas da tangerina 'Ponkan' (citrus reticulata Blanco durante o armazenamento refrigerado a 5 ± 2° C e umidade relativa de 85 ± 3% por um período de 28 dias, em dois estádios de maturação (frutos coletados no início da safra; com a casca mais verde e frutos coletados no final da safra com a casca amarela. Os frutos foram coletados com pedúnculo, ao acaso de um pomar comercial com sete anos de idade, localizado no município de Perdões, região Sul do Estado de Minas Gerais. Foram realizadas duas colheitas, uma no mês de Abril quando os frutos estavam com a casca verde, mas já estavam aptos para o consumo; e outra mais no final da safra no mês de Julho quando os frutos já estavam com a casca bem amarela. Os frutos coletados foram levados ao Laboratório de Bioquímica da Universidade Federal de Lavras, onde foram selecionados 100 (cem frutos de tamanho uniforme e com ausência de injúrias a cada colheita, estes foram lavados com uma solução de hipoclorito de sódio a 1%, protocolados, pesados, medidos e realizadas as leituras de cor. Os frutos foram então armazenados em refrigerador a 5 ± 2° C e umidade relativa de 85 ± 3% por um período de 28 dias, e as análises foram realizadas nos frutos e no suco dos frutos aos 0, 7 14, 21 e 28 dias de armazenamento. O delineamento experimental utilizado foi o inteiramente casualizado com 5 repetições de 4 frutos . Os resultados mostraram que quase todas as análises realizadas apresentaram variações significativas. A perda de massa, os diâmetros transversais e longitudinais apresentaram diminuições significativas com os dias de armazenamento refrigerado. Os açúcares também tiveram variações significativas com tendência de aumento com os dias de armazenamento.O pH não apresentou variações significativas. Os teores de Vitamina C não apresentaram varia

  6. FRONTERAS DIFUSAS Y ACTORES SOCIALES MESTIZOS: DEBATES CONCEPTUALES Y DESARROLLOS ANALÍTICOS EN TORNO A LOS ESPACIOS DE FRONTERA Y SUS VINCULACIONES CON LOS INDIOS-BLANCOS EN LA REGIÓN DEL CHACO DURANTE LA SEGUNDA MITAD DEL SIGLO XIX

    Directory of Open Access Journals (Sweden)

    Julio César Spota

    2010-12-01

    Full Text Available En la frontera establecida entre el Estado argentino y las distintas parcialidades aborígenes de la región del Chaco durante la segunda parte del siglo XIX, se configuraron identidades étnicas mestizas que escapaban a la simple esquematización de blancos e indios, civilizados y salvajes. La praxis histórica de los actores sociales como los indios-blancos (soldados desertores, criminales fugitivos de la ley, perseguidos y refugiados políticos y comerciantes que fueron incorporados dentro de los grupos indígenas proporciona un espacio privilegiado de reflexión antropológica poco explorado hasta el momento. En el presente artículo nos proponemos determinar las causas históricas que motivaron la migración de los criollos y recuperar la perspectiva de los actores sociales que protagonizaron los hechos estudiados.

  7. Rapid Polar Wander in North America During the Early Cambrian: Paleomagnetic and Magnetostratigraphic Constraints from the Peurto Blanco Volcanics from Caborca, and the Tapeats Sandstone of the Grand Canyon.

    Science.gov (United States)

    Kirschvink, J. L.; Elston, D. P.; Petterson, R.; Hagadorn, J. W.; Raub, T. D.; Evans, D. A.; Rose, E. C.; Weiss, B. P.; Barr, T. D.

    2006-12-01

    We report paleomagnetic directions from a volcaniclastic unit in the Early Cambrian Puerto Blanco Formation near Caborca in Sonora, Mexico, and from a restudy of the Tapeats Sandstone in the Grand Canyon, Arizona. Volcaniclastics in Caborca are found above carbonates of La Cienega Formation, which bear the Ediacaran index fossil Cloudina, and are overlain by siliciclastics bearing the Early Cambrian fossil Treptichnus pedum. Thin basaltic flows within the sequence show evidence of early oxidation of magnetite to hematite yielding a strong and stable remnant magnetization, and characteristic NRM directions obtained during progressive alternating field and thermal demagnetization from the units fall in two antipodal easterly westerly groups with moderate inclination. Volcanic clasts from the Puerto Blanco Formation show statistically random dispersion of components carried both by magnetite and by hematite, indicating multiple episodes of erosion and redeposition, and provide a positive conglomerate test. After correction for offset by the Sonora/Mojave megashear in Mesozoic time, these data imply a North magnetic pole at ~21º S latitude, 142º E longitude, suggesting that North America was at moderate southerly latitudes during the first part of Early Cambrian time. In contrast, near-equatorial paleolatitude is indicated for the earliest Middle Cambrian Tapeats Sandstone in the Grand Canyon and vicinity. Our extensive dm-resolution magnetostratigraphic study of this unit, involving stable data from about 250 samples from 7 sections, confirms an earlier report of Elston & Bressler (1977) which demonstrated a low-latitude, two-polarity characteristic remanence with stratigraphically-bounded polarity reversals. We provide positive reversal and conglomerate tests for this characteristic magnetization. The paleogeographic shift toward the equator during the last portion of Early Cambrian time helps account for the earlier appearance and higher abundance of carbonate

  8. Study on nutrient status of soil and leaf for Citrus reticulata Blanco cv. Shatangju demonstration orchard%沙糖桔示范园土壤及植株叶片营养状况分析

    Institute of Scientific and Technical Information of China (English)

    黄建昌; 李娟; 肖艳; 赵春香; 徐国锦; 韩群鑫; 伦天养

    2010-01-01

    对沙糖桔(Citrus reticulata Blanco cv. Shatangju)示范园表层土壤和沙糖桔植株叶片营养状况进行了分析.结果表明,示范园土壤pH值为3.98~5.32,有机质平均含量为17.3 g/kg,低于最适值;有效氮(N)、磷(P)平均含量分别为86.88和19.20 mg/kg,与正常值比较处于适宜水平;有效钾(K)平均含量为63.55 mg/kg,表现为缺乏;中量与微量元素中有效硼(B)、镁(Mg)、钙(Ca)、锌(Zn)含量呈不同程度的缺乏;有效铜(Cu)、锰(Mn)含量适宜,而有效铁(Fe)含量高量或过量.沙糖桔植株叶片含磷量及含氮量处于比较适宜水平,而钾营养则严重缺乏.叶片中量元素Mg、Ca和微量元素Zn、B含量缺乏,Mn、Cu含量适宜,Fe含量则高出适宜范围.

  9. NFLUENCE OF SOME REGULATORY MEASURES ON THREE HORMONES IN MANDARIN ( CITRUS RETICULATA BLANCO)%几种调控措施对宽皮柑桔3种激素含量的影响

    Institute of Scientific and Technical Information of China (English)

    周俊辉

    2005-01-01

    试验以15 a生本地早(Citrus reticulata Blanco)为材料,研究了5种调控措施对柑桔树叶片和芽的3种激素含量的影响.结果表明:叶片作测定对象时只有GA1/3的趋势明显,在iPAs和ABA上反映的信息是凌乱的,而芽子则能很好地反映出3种激素的水平和动态.在抑花措施中,GA3处理显著地提高了GA1/3含量,显著地降低了iPAs特别是ABA的含量;6-BA处理提高了iPAs含量,降低了ABA的含量;促花措施中,环割和PP333处理均降低了GA1/3含量,提高了iPAs和ABA的含量,PDJ-B处理在程度上不及前2者.

  10. Manuel Grijalvo, Un Obispo Burgales en Filipinas. By Roberto Blanco Andrés. Burgos: Publicaciones de la Excma. Diputación de Burgos, 2011. 88 pages, plates.

    Directory of Open Access Journals (Sweden)

    Grace Liza Y. Concepcion

    2012-12-01

    Full Text Available This brief biography is one among many published works by RobertoBlanco Andrés, a Spanish historian who specializes in the history of religious orders in the Philippines, particularly the Augustinians. The aim of the present work is simple. It is to recount Fray Manuel Grijalvo’s life as a religious priest who occupied key positions in the Augustinian Order and in the Philippine church as bishop of Nueva Caceres (now Naga in the first half of the 19th century, at a time when both the Order and the church in the Philippines were undergoing transition. This succinct narration of an Augustinian bishop’s lifeopens a window through which one can appreciate Philippine history in the 19th century. Although brief, the summary of Grijalvo’s years in the Philippines, spent in Manila and Nueva Caceres, gives a relatively complete view of the challenges that the Catholic Church was facing in this era, both within the Augustinian Order and in the Diocese of Nueva Caceres. This is so because Grijalvo was an Augustinian missionary who also occupied key posts as parish priest in Batangas towns (1814 -1818 and in Pasig (1833 -1839 and 1831-1847. He was also procurator and prior of the Order between 1818 and 1832. In1848, he was appointed bishop of Nueva Caceres, a post he occupied until his death in 1861. His life, therefore, encapsulates the struggles and challenges of the Philippine Catholic Church and the Spanish colonial government.

  11. Comparative Proteomic Analysis in Peels of Chuntianju (Citrus reticuiata Blanco) and Its Mutant%‘春甜橘’及其突变体果皮差异相关蛋白质组分析

    Institute of Scientific and Technical Information of China (English)

    曾继吾; 邓贵明; 高长玉; 姜波; 钟云; 钟广炎; 易干军

    2015-01-01

    【目的】柑橘自然芽变材料是柑橘育种的重要来源。‘明柳甜橘’(Citrus reticuiataBlanco cv.Mingliutianju,MP)是从‘春甜橘’(C. reticuiataBlanco cv.Chuntianju,CP)中选育出的自然芽变品种。分析‘春甜橘’与其自然芽变‘明柳甜橘’果皮差异蛋白质,探讨导致两品种形态差异的原因。【方法】以花后12周和23周的‘明柳甜橘’和‘春甜橘’果皮为材料,采用双向电泳技术(Two-dimensional gel electrophoresis,2-DE)分离获得野生型与突变型差异表达蛋白点,利用MALDI-TOF-MS质谱鉴定技术分析相关差异蛋白质,并进行功能注释和生物信息学分析。【结果】将提取的果皮总蛋白质经双向电泳后,分别采用硝酸银和考马斯亮蓝染色法进行蛋白质凝胶染色,均获得了清晰的2-DE电泳图。2-DE图谱经ImageMaster 2D软件分析表明,硝酸银染色法能检测到约1200个蛋白点,考马斯亮蓝染色法能检测到约500个蛋白质点,从中各选取20个变化丰度2倍以上且重复性好的蛋白点进行MALDI-TOF-MS质谱鉴定和数据库检索分析,共有33个蛋白质有功能注释,其中17个蛋白质在‘明柳甜橘’果皮中表达上调,16个表达下调。按照33个差异蛋白质的功能,可将其分为11类,它们分别参与糖类/能量代谢、胁迫/防御反应、核酸代谢、氨基酸代谢、转录、氮代谢、脂肪酸代谢、蛋白修饰与降解以及未知类。利用KOBAS(KEGG Orthology-Based Annotation System)在线功能分析平台对33个差异表达蛋白质进行信号通路分析,其中18个差异蛋白质有KO注释,共涉及31条信号通路,按照P值大小排列,类黄酮生物合成过程位居第一,说明该信号通路最有可能参与春甜橘芽变形成过程。【结论】综合分析‘春甜橘’和‘明柳甜橘’基因水平及蛋白质水平的差异,推测可能是由参与类黄酮生

  12. 砂糖橘精油化学组成及对指状青霉的抑菌活性%Chemical Composition and Antifungal Activity against Penicillium digitatum of Essential Oil from C.reticulate Blanco

    Institute of Scientific and Technical Information of China (English)

    杨彦松

    2013-01-01

    采用水蒸气蒸馏法提取砂糖橘(Citrus reticulate Blanco)果皮精油,并用GC-MS对其成分进行分析,共鉴定出17种成分,主要包括柠檬烯(77.99%)、β-月桂烯(3.74%)、β-水芹烯(2.78%)、罗勒烯(2.64%)、β-芳樟醇(2.35%)、α-蒎烯(1.60%)、正辛醇(1.54%)、癸醛(1.24%)、4-松油醇(1.10%)和4-十一烯(1.04%)等.测定不同添加量(0.16、0.31、0.63、1.25、2.50、5.00、10.00μL/mL)砂糖橘精油对指状青霉孢子萌发和菌丝体生长的作用.结果表明:低添加量(< 2.5μL/mL)砂糖橘精油对指状青霉孢子萌发无影响甚至有促进作用,对指状青霉菌丝体生长有轻微的抑制;而高添加量(10μL/mL)则显著抑制孢子萌发和菌丝体生长(P<0.05).本实验表明砂糖橘精油在防治指状青霉具有一定作用.

  13. GC-MS法分析鸡皮果叶挥发油的化学成分%Analysis on Chemical Components of the Essential Oil from the Leaves of Clausena anisum-alens(Blanco.)Merr by GC-MS

    Institute of Scientific and Technical Information of China (English)

    苏秀芳

    2008-01-01

    [目的]为了分析鸡皮果叶[Clausena anisum-alens(Blanco.)Merr]挥发油的化学成分.[方法]用水蒸汽蒸馏法提取鸡皮果叶挥发油,用毛细管气相色谱-质谱(GC-MS)获得其总离子流图,对各个色谱峰进行了定性,并用面积归一化法获得各化合物的相对质量分数.[结果]共鉴定了20个化合物,占总挥发油质量的99.12%.主要成分为:4-甲氧基6-(2-丙烯基)-1,3-苯并二恶唑(28.97%),(+)-4-蒈烯(24.84%),大根香叶烯B(11.41%),十六烷酸(4.82%),1,2,3-三甲氧基5-(2-丙烯基)-苯(3.84%),斯巴醇(3.19%),1-二十二碳烯(2.82%),石竹烯(2.79%),1-甲基咪唑-5-甲醛(2.75%).[结论]揭示了鸡皮果叶的药理作用,为综合开发利用鸡皮果植物提供了科学依据.

  14. Análisis y restitución infográfica del espacio de la escalera principal del castillo de Vélez Blanco (Almería

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    Motos Díaz, Ismael

    2015-09-01

    Full Text Available The aim of this project was to analyze and restore the architectural space of the main staircase of the castle of Vélez using Rendering (a process of generating an image from a model by means of computer programs in order to recreate the spatial, light and material qualities of the original room. Virtually the only intact structures that remain in the building are the walls. Therefore, the main focus of this research was the identification and creation of a virtual reconstruction of all the architectural elements that initially formed part of the main staircase space. The author has carried out a historical study and has made a three-dimensional survey of the current state of the remains of the staircase along with the pieces of marble from this room that have been preserved but disassembled in other areas of the castle.El objetivo de este trabajo es analizar y restituir mediante modelos infográficos el espacio de la escalera principal del castillo de Vélez Blanco con el fin de recrear las cualidades espaciales, lumínicas y materiales originales de este ámbito. Si de la estancia primitiva se conserva poco más que el perímetro murario que lo acota, esta investigación identifica y reconstruye virtualmente cada una de las partes y elementos que la conformaban a partir del estudio histórico-documental y el levantamiento tridimensional del estado actual de la sala y de las piezas de la escalera que aún se conservan desmontadas en otras dependencias del castillo.

  15. Ante el traspaso de dos decanos muy relevantes de la Facultad de Derecho de Málaga (Antonio Pérez de la Cruz Blanco y Alejandro Rodríguez Carrión

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    Manuel J. Peláez

    2013-03-01

    Full Text Available Tratamos de hacernos eco en las presentes líneas de dos Decanos de la Facultad de Derecho de la Universidad de Málaga, fallecidos en circunstancias diversas en el año 2009, que marcaron de forma extraordinaria la evolución de dicha Facultad. El primero, Antonio Pérez de la Cruz Blanco, catedrático de Derecho mercantil, y el segundo Alejandro Rodríguez Carrión, catedrático de Derecho internacional público y Relaciones internacionales, que estuvo al frente del decanato durante cuatro periodos, de desigual extensión y espaciados en el tiempo los dos primeros de los segundos. El actual decano de la Facultad de Derecho, Juan José Hinojosa, con buen criterio, ha deseado homenajear a ambos, pero lamentablemente solo al segundo se le han organizado actos de momento en la Facultad de Derecho de Málaga. A Pérez de la Cruz se le ha tributado un homenaje en la Facultad de Derecho de la Universidad de Alcalá de Henares y se ha publicado una miscelánea de trabajos en su homenaje. A Rodríguez Carrión llevamos tres años y diez meses insistiendo que se le organice una miscelánea en dos volúmenes recogiendo trabajos científicos de su área de conocimiento en el primero y de Varia Iuridica en el segundo. De momento nada se ha avanzado al respecto de lo que me alcance la noticia.

  16. Modelo de identificación y caracterización de tramos de carreteras sin accidentes (tramos blancos. Aplicación a la red de autopistas de peaje españolas

    Directory of Open Access Journals (Sweden)

    de la Peña-González, E.

    2015-12-01

    Full Text Available The traditional approach to infrastructural safety follows the consideration of mitigation tools, such as the identification and management of black spots or road sections with high accident concentration, or preventing tools, as road safety audits and inspections. A complement to these tools is presented in this paper, from a new perspective: the consideration of road sections where, under similar conditions and similar risk exposure, there are no accidents (white road sections. A model has been calibrated to the Spanish toll motorways network, identifying the specific geometric parameters and traffic characteristics which have the highest influence in the occurrence of white sections with sufficient length, without accidents during a significant period of time: heavy vehicles traffic volume, with of the road section and speed.El planteamiento tradicional de análisis de la accidentalidad en carretera pasa por la consideración de herramientas paliativas, como son la identificación y gestión de los puntos negros o tramos de concentración de accidentes, o preventivas, como las auditorías o inspecciones de seguridad vial. En este artículo se presenta un complemento a estas herramientas, desde una perspectiva novedosa: la consideración de los tramos donde, bajo unas condiciones similares a las de otros tramos y una similar exposición al riesgo, no se producen accidentes (tramos blancos. Se resume el modelo que se ha calibrado para las autopistas de peaje españolas, identificando los parámetros específicos de la geometría de la vía y del tráfico que más influencia tienen en el hecho de que en algunos tramos de suficiente longitud, no se produzcan accidentes durante un periodo significativo de tiempo: el tráfico de pesados, al ancho de calzada y la velocidad de circulación.

  17. The Heritage of Freudian Theoretical and Clinical Constructs in Contemporary Psychoanalytical Practice: Epistemological Conjectures and Clinical Refutations. The significance of the Menninger Clinic in the validation of psychoanalysis in international mental health practice inherent to the contributions of Lacan, Fairbairn, Matte-Blanco, Bion, Grotstein & Kernberg

    OpenAIRE

    Peres Dias, Carlos

    2013-01-01

    This Thesis aims to present an overview of the development to this point of psychoanalysis as a discipline –both as a theory of the mind (Freud, Lacan, Fairbairn, Bion, Matte-Blanco, Grotstein, Kernberg: theoretical prolegomena; Laplanche’s ‘secondary discourse’) and a treatment of the disorders of the mind [Freud’s clinical text such as “Dora’s Case”, my own clinical cases, and the ‘Menninger Psychotherapy Research Project’ (MPRP): practical constructs; Laplanche’s ‘primary discourse’)] – an...

  18. Estudio dosimétrico de márgenes internos, a través de simulación de tratamiento de blancos bajo movimiento respiratorio / Dosimetric study of internal margins, through simulation of treatment of targets under respiratory movement

    OpenAIRE

    Martínez Téllez, Robinson

    2009-01-01

    Cuando se realizan tratamientos de radioterapia en zonas del cuerpo bajo la influencia del movimiento respiratorio, es necesario añadir un margen al volumen blanco clínico (CTV) para tener en cuenta los desplazamientos que este pudiera tener. En general, el margen adicionado, permite que el CTV se encuentre en todo momento dentro del haz de radiación, de tal forma que en algunos momentos del ciclo respiratorio será irradiada una gran cantidad de tejido normal. En este trabajo, se demuestra a ...

  19. The Black-White Achievement Gap Revisited Revisitando la brecha en el rendimiento de estudiantes negros y blancos Revisitando a defasagem de rendimento academico dos estudantes negros e brancos

    Directory of Open Access Journals (Sweden)

    Henry Braun

    2010-09-01

    Full Text Available This study examines trends in Black student achievement and in the Black-White achievement gap over the period 2000 to 2007, employing data from ten states drawn from the NAEP Grade 8 mathematics assessments. Results are obtained for three levels of aggregation: the state, school poverty stratum within the state, and schools within poverty stratum. In addition, information on the ten states’ education policies for the period 1998 to 2005 was compiled. States relative ranks on the overall strength of their reform efforts were compared to their relative ranks with respect to their success in improving Black student achievement and in reducing the Black- White achievement gap. This study constitutes an extension of earlier work that considered the same issues for the period 1992 to 2000 and, thus, offers a unique comparison between the pre-NCLB era and the present one. Although the ten states certainly differed in their outcomes, the general picture at all three levels of aggregation is quite clear: The achievement gaps are substantial and the introduction of federally mandated high stakes test-based accountability through No Child Left Behind has had a very modest impact on the rates of improvement for Black students and on the pace of reductions in the achievement gaps between Black students and White students. Moreover, there was only a weak association between states’ policy rankings and their rankings related to test results. It appears there is a need for both fresh thinking on education reform and a more concerted effort to collect comprehensive longitudinal information on states' education policies.
    Este estudio examina las tendencias en el rendimiento académico de estudiantes negros y la brecha en el rendimiento de los estudiantes negros y blancos en el período 2000 a 2007, utilizando datos de las evaluaciones NAEP de Matemáticas para el octavo grado en diez estados. Se obtuvieron resultados para tres niveles de agregacio

  20. 椪柑精油及其主要抑茵组分对菌核青霉的抑制作用%The Inhibitory Effect of Essential Oil from Citrus reticulate Blanco and Their Main Pure Compounds on Penicillium

    Institute of Scientific and Technical Information of China (English)

    王华; 陶能国; 王长锋; 凡凤

    2012-01-01

    The essential oil of C.Reticulate Blanco was extracted by hydro-distillation and analyzed by GC-MS.Forty six components were identified.The major components were limonene (57.67% ) ,followed by (3-linalool (5.36% ) ,2-carene (4.47% ) ,β-pinene (4.31% ) ,γ-terpinene (4.08% ) ,α-pinene (3.27% ) ,Cyclobutane,1,2-bis ( 1-methylethenyl) -( 2.87%) ,(3-myrcene (2.77%),a-thujene (2.40%),(3-phellandrene (2.24% ) ,decanal( 1.80% ) and citronellal (1.49% ) etc.The effects of C.Reticulate essential oil and pure compounds in varying concentrations on the growth of Penicillium sclerotiorum by poisoned food technique and liquid culture were also elucidated. Results showed that C. Reticulate essential oil has significantinhibitory effect on the growth of P.Sclerotiorum in varying concentrations,with the increasing concentration positively correlated with inhibitory efficiency,and 20μl/ml of the essential oil can inhibit the growth of P.Sclerotiorum absolutely.Results by poisoned food technique showed that the antifungal activity of the essential oil at a concentration of 20μl/ml became weaker with time progressed.The study of seven pure compounds against P.Sclerotiorum by poisoned food technique indicated that the growth of this strain was effectively inhibited by 0.04μl/ml citral and 1.07μl/ml β-linalool,while no obvious inhibition effect was observed by the remaining pure compounds.The present study suggested that the significant inhibitory effect of Ponkan essential oil on the growth of P. Sclerotiorum could be attributed a lot to citral and β-linalool in it.%采用水蒸气蒸馏法提取椪柑(Citrus reticulate Blanco)果皮精油,并用GC-MS对其成分进行分析,共鉴定出46种成分,主要包括柠檬烯(57.67%)、β-芳樟醇(5.36%)、2-蒈烯(4.47%)、β-蒎稀(4.31%)、γ-松油烯(4.08%)、α-蒎烯(3.27%)、1,2-二异丙烯基环丁烷(2.87%)、β-月桂烯(2.77%)、α-侧柏烯(2.40%)、β-水芹烯(2.24%)、癸醛(1.80

  1. Andares negros, caminos blancos (Lea Geler

    Directory of Open Access Journals (Sweden)

    Nicolás Fernández Bravo

    2011-01-01

    Full Text Available En cierta época, la antropología social se pensaba a sí misma como una disciplina capaz de “rescatar” las culturas olvidadas o en vías de desaparición y así “dar voz a los sin voz”. De este modo, muchas etnografías se construyeron (y aún hoy lo hacen implícitamente sobre esta premisa, cuya trampa radica en la imposibilidad de una tarea semejante.

  2. E-learning en Blanco y Negro

    OpenAIRE

    Martínez Aldanondo, Javier

    2006-01-01

    En este artículo el autor aborda fundamentalmente las razones por las que aún no ha habido un éxito rotundo del e-learning, y que serían las siguientes: Una primera revolución que es un cambio relacionado con Aprender con Tecnología. La mayor parte de la gente no entiende muy bien para que sirve un ordenador. Saben manejarlo pero no saben que cosas se pueden hacer, más allá de escribir o leer. Una segunda revolución que es Aprender Haciendo, implica un cambio drástico de metodología, de prota...

  3. 广藿香辐射诱变筛选抗病突变体的研究%Selection of Bacterial-wilt-resistance Mutants of Pogostemon cablin (Blanco) Benth.by Radiation Mutation

    Institute of Scientific and Technical Information of China (English)

    贺红; 许仕仰; 吴立蓉; 张燕玲

    2012-01-01

    Objective To select the bacterial-wilt-resistance mutants of Pogostemon cablin (Blanco) Benth. By 60Co γ ray radiation mutation, so as to lay a foundation for disease-resistance breeding. Methods The effects of 60Co γ ray radiation on plant regeneration from the explants of Pogostemon cablin were studied. The explants from regenerated plants after radiation mutation were cultured in the media supplemented with crude toxin extracted from Ralstonia solanacearum, and then the mutants resistant to bacterial wilt in Pogostemon cablin were selected. Results The crude toxins extracted from 1.34×108 cfu/mL and 2.48×108 cfu/mL R. Solanacearum were suitable for screening resistant shoots and resistant plant respectively. Survival rate and regenerated ability of the explants irradiated by 60Co γ ray were decreased with the increase of radiation dose. The radiation dose of 40 Gy and 60 Gy was suitable for mutation breeding. After 60Co γ ray radiation mutation combined with in vitro selection, 24 resistant plants were obtained. Conclusion A proper method for selection of the bacterial-wilt-resistance mutants of Pogostemon cablin has been established, which will supply valuable germplasm for disease-resistance breeding of Pogostemon cablin.%[目的]将辐射诱变与离体选择相结合,筛选广藿香抗青枯病突变体,为广藿香抗病育种奠定基础.[方法]观察60Coγ射线辐射对广藿香离体再生的影响;以辐射诱变的广藿香为材料,以青枯菌粗毒素为选择压力,筛选抗青枯病植株.[结果]在进行抗性芽及抗性植株筛选中,分别以1.34×108 cfu(菌落形成单位)/mL及2.48×108 cfu/mL青枯菌制备的粗毒素作为选择压力,可能筛选到抗性的材料.60Co γ射线辐射对广藿香离体再生有明显的影响,随着辐射剂量的增加,外植体存活率及再生芽的能力显著下降.最终选取剂量为40 Gy和60 Gy进行辐射诱变,结合离体培养筛选抗病突变体,获得了24株抗性植株.[

  4. Patagifer lamothei n. sp. (Digenea: Echinostomatidae: Nephrostominae from the white ibis Eudocimus albus (Threskiornithidae from Texas, USA Patagifer lamothei n. sp. (Digenea: Echinostomatidae: Nephrostominae del ibis blanco Eudocimus albus (Threkiornithidae de Texas, EUA

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    Norman O. Dronen

    2008-08-01

    Full Text Available During a study of the endohelminths of wading birds from the Texas Gulf coast, 12 specimens of an undescribed species of Patagifer Dietz, 1909 (Echinostomatidae: Nephrostominae were collected from 2 of 8 white ibis, Eudocimus albus (Linnaeus (Threskiornithidae, from the Galveston and Brazos County areas of Texas, USA. Patagifer lamothei n. sp. can be distinguished from P. bilobus (Rudolphi, 1819, P. brygooi Richard, 1964, P. consimilis Dietz, 1909, and P. fraternus Johnston, 1917, where the testes are close together (contiguous to nearly contiguous, the ovary is close to the anterior testis (a distance that is less than the length of the ovary, and the posttesticular space is less extensive, by having the testes separated from each other by a distance approximately equal to or greater than the length of the ovary, the ovary positioned about the length or longer of the ovary from the anterior testis, and by having a more extensive posttesticular space. In addition, the ovary of the new species is located just ahead of midbody rather than being at midbody, as is seen in P. bilobus, P. fraternus, and P. vioscai Lumsden, 1962, or below midbody, as is the case in P. brygooi and P. consimilis. The new species is most like P. simarai Nigam, 1944 in the similar distance between testes, position of the ovary, and the posttesticular space (30-36% of the body length. The new species differs from P. simarai by having a smaller body size, a smaller oral sucker and pharynx, a smaller acetabulum, ovary, testes, cirrus sac, and smaller spines on the margin of the collar, but larger corner spines, and the ovary of the new species is located immediately anterior to the midbody, while in P. simarai it is located well ahead of the midbody.En un estudio de endohelmintos de aves de los humedales de la costa de Texas, se recolectaron 12 ejemplares de una especie no descrita de Patagifer Dietz, 1909 (Echinostomatidae: Nephrostominae en 2 ibis blancos de 8 examinados

  5. Mineral Elements Determination in Citrus reticulata Blanco cv.‘shiyueju’ by ICP-AES%ICP-AES 法测定砂糖橘中的矿质元素含量

    Institute of Scientific and Technical Information of China (English)

    李云仙; 刘祥义; 徐娟; 雷然

    2016-01-01

    The contents of 14 elements such as Cu, Fe, Zn, Mn, Na, K, Ca, Mg and P were studied by ICP-AES with microwave digestion in Citrus reticulata Blanco cv.‘shiyueju’, and the results showed that, the contents of K, Ca, Mg, P were higher inpeel and pulp.The content of K in the pulp were very high, reached 9 082.23 ug/g, while the content of Na were very low, with only 80.45 ug/g.The Cr elements were not detected in fruit peel and pulp.Sr was not detected in the flesh, but its content was 10.24 ug/g in the peel.The content of B, Ca, Mg, Fe, Mn, Si, Zn in peel were higher than that in the flesh.The relative standard deviations and recov-eries of all elements determined with ICP-AES were between 0.18%~4.77%and 95.15%~106.1%respective-ly.The combination of microwave digestion with the ICP-AES showed that this technolgy has better precision and accuracy .%以市售广西砂糖橘为材料,采用微波消解法处理样品,以电感耦合等离子体发射光谱仪( ICP-AES )检测砂糖橘中Cu、 Fe、 Zn、 Mn、 Na、 K、 Ca、 Mg、 P等14种矿质元素的含量,结果表明,砂糖橘果皮和果肉中K、Ca、 Mg、 P等元素的含量较高;果肉中K含量尤其高,达到9082畅23 ug/g,而Na含量则很低,果肉中仅含80畅45 ug/g,元素Cr在果皮和果肉中均未检出; Sr在果肉中未检出,在果皮中含量为10畅24 ug/g;在砂糖橘果皮中B、 Ca、 Mg、 Fe、 Mn、 Si、 Zn 7种元素含量均高于果肉。加标回收率实验表明,各元素的相对标准偏差( RSD)为0畅18%~4畅77%,各元素的回收率在95畅15%~106畅1%之间,说明该方法测定广西砂糖橘中矿质元素具有较好的精密度和准确度。

  6. 青枯菌侵染广藿香的组织病理学研究%Histopathological Study of Pogostemon cablin (Blanco) Benth.Infected with Ralstonia solanacearum

    Institute of Scientific and Technical Information of China (English)

    徐燃; 贺红; 邓素坚; 李润美; 杨玉秀; 邓志成; 金华

    2013-01-01

    [目的]探讨青枯菌对广藿香的入侵过程及侵染后寄主植物的组织病理学特征.[方法]以青枯菌HX6为供试菌株,分别对伤根及不伤根的广藿香试管苗进行侵染试验.通过扫描电镜观察青枯菌从广藿香根部入侵的过程,并采用光学显微镜观察青枯菌侵染后广藿香的组织病理学变化.[结果]青枯菌侵染前期,伤根的植株比不伤根的植株发病更严重;侵染后期,两者的病情指数均为100.电镜观察发现侵染24 h后,青枯菌及其胞外分泌物在广藿香根部出现;48 h时后,在茎部导管出现.青枯菌入侵造成植株茎部导管离析、扭曲及破裂,随之,叶表皮组织也逐渐破坏,植株死亡.[结论]青枯菌对广藿香具有强的亲和性,侵染速度快,青枯菌及其胞外致毒素能直接破坏寄主维管组织,使得水分运输受阻,造成植株枯萎死亡.%Objective To investigate Ralstonia solanacearum infection process in Pogostemon cablin ( Blanco) Benth. and to observe the histopathological changes of the infected plants. Methods The test-tube plantlets of Pogostemon cablin were used as host plants, and Ralstonia solanacearum HX6 was used as infecting strain. Invasion and colonization of R. solanacearum from the root of host plants were observed under scanning electronic microscope ( SEM) , and changes of the stem vessel and leaf abaxial epidermis of infected plants were observed via optical microscopy. Results At the prophase of infection, the disease developed faster in the plants with wound root than in the plants without wound root. With the prolongation of infection time, all the plants with or without wound root showed wilting, the disease index being 100. Under SEM, the bacteria and their extracellular secretion occurred in root section at hour 24 after inoculation, and in the vessel of stems at hour 48 after inoculation. Observation of infected tissues by optical microscopy indicated that the stem vessels seperated

  7. Desempeño reproductivo de dos líneas de reproductores de camarón blanco Litopenaeus vannamei introducidos en Cuba - Reproductive behaviour of broodstocks from lines of white shrimp Litopenaeus vannamei introducing in Cuba

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    Lic. Missael Guerra

    2010-07-01

    Full Text Available ResumenUno de los mayores problemas en los laboratorios de producción depostlarvas es el “inbreeding”, el que puede afectar las características reproductivas de los animales y tener un impacto negativo en la producción. En este trabajo se evaluaron los registros reproductivos de los progenitores de dos introducciones (I1 e I3 de camarón blanco Litopenaeus vannamei provenientes del mismo lugar mantenidos en ciclo de producción cerrado. Para el estudio se tomaron los resultados del número de hembras maduras diarias (Mad/día; Porciento de cópula (% Cop y nauplios por desove (Nau/Des. Todos estos indicadores fueron comparados entre meses y entre introducciones. El número de hembras maduras fue el único que mostró una distribución normal variando de 119 a 178 y de 43 a 70 para cada una de las introducciones respectivamente. Se observó que existen diferencias significativas entre los meses en todos para los indicadores. Se observó un comportamiento similar de loscaracteres reproductivos, el segundo y tercer mes fueron los mejoresdurante el período de producción. No existieron diferencias significativas en el porciento de cópula ni en el número de nauplios por desoves, pero en el número de hembras maduras si hubo diferencias mostrando valores de 160 para I1 y de 62 para I3; esto probablemente se debe a problemas de manejo, el número de animales que se encontraban en la nave o a condiciones ambientales. Estos parámetros son muy importantes para la diferenciación genética entre líneas, además de ser muy útiles en un posible tratamiento de loci cuantitativo (QTL, por sus siglas en ingles que permitan mejoras los caracteres reproductivos y así obtener reproductores más eficientes.SummaryOne of the major concerns in hatcheries is inbreeding, which can affect fitness-related traits, and may have a significant negative impact on production. We present the analysis of reproductive records for broodstocks from two different

  8. Extracción, Caracterización Parcial y Termoestabilidad de la Enzima Transglutaminasa en Surimi, en Músculo Blanco de Jurel y en Miofibrillas de Carne de Vacuno Extraction, Partial Characterization and Thermostability of Transglutaminase of Surimi and Jack Mackerel White Muscle and for Myofibrils of Bovine Meat

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    Emilia M Curotto

    2007-01-01

    Full Text Available El objetivo de esta investigación fue determinar la presencia de transglutaminasa en los extractos de surimi, músculo blanco de jurel (Trachurus murphyi y en miofibrillas de carne de vacuno. Esto, con el fin de evaluar su termoestabilidad y los parámetros cinéticos más relevantes para proyectar la utilización de estos tejidos en la industria de nuevos productos alimentarios. Las actividades de transglutaminasa fueron 4.7 x 10-3, 13.0 x 10-3 y 53.0 x 10-3 UI/g tejido para surimi, músculo blanco de jurel y carne de vacuno, respectivamente. Se caracterizó parcialmente la transglutaminasa en miofibrillas, encontrándose valores de pH óptimo de 6.5 y 40º C de temperatura. Se postula la existencia de dos transglutaminasas en el músculo blanco de jurel, con valores óptimos de pH de 5.4 y 7.6, temperaturas de 50 y 60º C y concentraciones de calcio de 10 y 40 mM. Para surimi los valores encontrados son semejantes a los de músculo blanco de jurel. Se realizaron pruebas de termoestabiliad, obteniéndose valores de las constantes de inestabilidad entre 3.3 x10-3 y 0.4 h-1 a las distintas temperaturas de preincubación. Los valores de las energías de activación de la inactivación se encuentra entre 12.46 y 39.37 KJ mol-1 ºK-1.The objective of this research was to carry out the extraction and characterization of surimi and jack mackerel white muscle (Trachurus murphyi and of bovine meat and to determine the thermostability of transglutaminase. Kinetics parameters and thermostability are more relevant to project the utility of this tissue in new food products development. The activities of this enzyme were of 4.7 x 10-3, 13.0 x 10-3 y 53.0 x 10-3 UI/g tissue for surimi and white muscle of jack mackerel, and meat of bovine respectively. It characterized transglutaminase of bovine meat, finding values of optimal pH of 6.5 and 40º C of temperature. The existence of two transglutaminases was postulated in the white muscle of jack mackerel, with

  9. FRONTERAS DIFUSAS Y ACTORES SOCIALES MESTIZOS: DEBATES CONCEPTUALES Y DESARROLLOS ANALÍTICOS EN TORNO A LOS ESPACIOS DE FRONTERA Y SUS VINCULACIONES CON LOS INDIOS-BLANCOS EN LA REGIÓN DEL CHACO DURANTE LA SEGUNDA MITAD DEL SIGLO XIX

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    Julio César Spota

    2010-12-01

    Full Text Available ABSTRACT: In the frontier drawn between the Argentine State and the different aborigine groups of the Chaco region during the second half of the XIX century, different half-breed social identities that escape simple dichotomies between whites and Indians, civilized people and savage people were formed. The historical practice of considering social actors as white Indians (deserting soldiers, fugitive criminals, political exiles and refugees, as well asmerchants who were incorporated to the Indian groups provides a privileged space for anthropological observation which has been relatively little explored until now. This paper investigates the historical reasons that motivated the migration of Creoles and recovers the perspective of social actors who took a leading role in the facts studied.RESUMEN: En la frontera establecida entre el Estado argentino y las distintas parcialidades aborígenes de la región del Chaco durante la segunda parte del siglo XIX, se configuraron identidades étnicas mestizas que escapaban a la simple esquematización de blancos e indios, civilizados y salvajes. La praxis histórica de los actores sociales como los indios-blancos (soldados desertores, criminales fugitivos de la ley, perseguidos y refugiados políticos ycomerciantes que fueron incorporados dentro de los grupos indígenas proporciona un espacio privilegiado de reflexión antropológica poco explorado hasta el momento. En el presente artículo nos proponemos determinar las causas históricas que motivaron la migración de loscriollos y recuperar la perspectiva de los actores sociales que protagonizaron los hechos estudiados.

  10. Modelos nulos en interacciones biológicas, una propuesta: depredación en chirostoma riojai-zooplancton

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    Octavio M. Vilchis

    2000-01-01

    Full Text Available Se muestra una propuesta de construcción rápida y confiable de los modelos, a partir de una prueba de bondad de ajuste y una de "G" con el fin de apreciar diferencias significativas. Se analiza un estudio de caso que presenta un patrón ecológico (depredación conocido, entre un pez y sus presas.

  11. Insetos Sugadores (Sternorrhyncha em Cultivo Orgânico de Tangerina cv. Poncã (Citrus reticulata Blanco: Diversidade, Constância, Freqüência e Flutuação Populacional

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    William Costa Rodrigues

    2009-08-01

    Full Text Available O objetivo do trabalho foi estudar a diversidade, constância, freqüência e a flutuação populacional de insetos sugadores da subordem Sternorrhyncha associados à tangerina cv. Poncã sob o sistema de cultivo orgânico. Os levantamentos foram realizados entre outubro de 2002 e outubro de 2003. Dentre os aleirodídeos, Aleurothrixus floccosus Maskell destacou-se dos demais, com média populacional igual a 74,06%. Aleurotrachelus cruzi Cassino obteve média de 52,6%. Entre as cochonilhas destacaram-se Selenaspidus articulatus (Morgan (23,96% e Pinnaspis aspidistrae (Signoret (19,38%. O psilídeo Diaphorina citri Kuwayama obteve média de 52,6%, sendo a segunda espécie com maior média. Os pulgões Toxoptera citricida (Kirkaldy e Toxoptera aurantii (Boyer, somente ocorreram em período de brotação e floração, com média populacional de 7,6% e 6,25%, respectivamente. Quanto à diversidade das espécies o período com maior diversidade, ocorreu na 1ª quinzena de setembro de 2003 (H’= 0,964, coincidindo com a menor dominância (D= 0,200, e menor diversidade na 1º quinzena de maio de 2003 (H’= 0,657 e maior dominância (D= 0,522. As espécies constantes foram: A. floccosus (100%, A. cruzi (96%, Coccus viridis (Green (100%, P. aspidistrae (100% e D. citri (100%. As espécies mais freqüentes foram: A. floccosus (30,79% e D. citri (21,87%. Os resultados sugerem que as espécies verificadas possuem a dinâmica populacional em parte influenciada pela competição interespecífica, pois quando há um aumento populacional dos aleirodídeos, há um decréscimo da população das cochonilhas e vice-versa, além dos fatores ambientais, a predação e o parasitismo.Sucker Insects (Sternorrhyncha in Organic Cropping of Tangerine cv. Ponkan (Citrus reticulata Blanco: Diversity, Constancy, Frequency and Populational FluctuationAbstract. The aim of this work was to study the diversity, constancy, frequency and the population fluctuation of the sucker

  12. Evaluación de la actividad enzimática y contenido de proteína en larvas de camarón blanco Litopenaeus vannamei alimentadas con diferentes dietas (Evaluation of the enzymatic activity and protein content in larvae of white shrimp Litopenaeus vannamei fed with different diets

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    Isiordia-Pérez E

    2007-08-01

    Full Text Available El alimento vivo para el cultivo de camarón requiere especial atención. Los alimentos comúnmente empleados en esta industria, se han seleccionado principalmente por la facilidad de su cultivo más que por sus propiedades nutricionales. El presente trabajo compara el uso de copépodos (Tisbe monozota vivos y muertos y una dieta microligada y microparticulada como alternativa alimenticia de nauplios de Artemia para larvas de camarón evaluando la actividad enzimática y contenido de proteínas de las misma. El estudio se realizó en estadios larvales de camarón blanco Litopenaeus vannamei bajo condiciones controladas de temperatura (28°C, salinidad (35‰ y fotoperiodo (12 h luz / 12h oscuridad. En ambos experimentos el mayor contenido proteico se obtuvo en larvas alimentadas con la dieta experimental y con Artemia viva. a diferencia de la actividad enzimática que fue mayor al utilizar copépodos tanto vivos como muertos. Los resultados demostraron que no hay diferencia significativa en contenido proteico y en actividad de tripsina al usar copépodos (vivos o muertos y nauplios de Artemia , y sugieren a la dieta experimental como buena fuente alternativa en los primeros estadios larvales de camarón blanco L. vannamei The live food for the shrimp culture requires special attention. The food commonly used in this industry, have been selected mainly for the feasibility of their culture rather than their nutritional properties. This present work include alive and dead copepods (Tisbe monozota and a microparticulate microbound diet as alternative live food to Artemia nauplii for shrimp larvae, evaluating their enzymatic activity and protein content. The study was made with larval stages of white shrimp Litopenaeus vannamei under control culture conditions: temperature (28°C, salinity (35% and photoperiodo (12 h light/12h dark. In both experiments the higher protein content was obtained in larvae fed with the microdiet and Artemia nauplii

  13. Registro de pecarí de labios blancos (Tayassu pecari en la región de la laguna de Términos, Campeche, México White lipped pecaries (Tayassu pecari recorded in the area of Términos Lagoon Campeche, México

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    Mircea G. Hidalgo-Mihart

    2012-09-01

    Full Text Available Se registró fotográficamente al menos un grupo de pecaries de labios blancos (Tayassu pecari en la Selva La Montaña, al suroeste del área de Protección de Flora y Fauna Silvestre Laguna de Términos, Campeche, México. El registro se realizó utilizando trampas cámara. La presencia de esta especie muestra la importancia que tiene la región Selva La Montaña para la conservación de la biodiversidad, especialmente para las especies protegidas.We report at least one group of white lipped peccaries (Tayassu pecari in Selva La Montaña located in the southwestern portion of the Términos Lagoon Flora and Fauna Protection Area, Campeche, Mexico. The record was obtained using camera traps. The presence of this species in the area shows the importance of the region for biodiversity conservation, particularly for protected species.

  14. El foro virtual como estrategia de aprendizaje en la asignatura biología del 5to año del liceo bolivariano “santa bolívar” del distrito escolar n°12, municipio Andrés Eloy Blanco del Estado Barinas, Venezuela

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    Juan de Jesús Alvarado Ortiz

    2012-02-01

    Full Text Available La presente investigación tuvo como objetivo proponer el foro virtual como estrategia de aprendizaje en la asignatura Biología, (específicamente en el tema de Ingeniería Genética, del 5to año del Liceo Bolivariano “Santa Bolívar”, del Municipio Andrés Eloy Blanco del Estado Barinas. Esta es una investigación binacional, construida con el esfuerzo de dos instituciones: el Liceo Bolivariano “Santa Bolívar” (Venezuela y el Instituto Tecnológico de Comitán (México. Se fundamentó sobre la base de la teoría constructivista. La investigación se orientó por el método aplicable a los Proyectos Factibles, el cual se estructuró tres fases: diagnóstico, diseño y factibilidad de la propuesta.

  15. Evaluación de patogenicidad de aislamientos nativos de hongos entomopatógenos sobre el gusano blanco de la papa, Premnotrypes vorax (Hustache Pathogenicity evaluation of native isolates of entomopathogenic fungí against andean weevil, Premnotrypes vorax (Hustache

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    Pinto Lucía

    2001-12-01

    Full Text Available

    El objetivo de este trabajo fue la evaluación de la capacidad patogénica de aislamientos nativos de los hongos entomopatógenos Beauveria bassiana y Metarhizium anisopliae, obtenidos de áreas naturales y de papa almacenada, sobre adultos del gusano blanco de la papa, Premnotrypes vorax (Hustache (COLEOPTERA: Curculionidae, insecto plaga de gran importancia en el cultivo de la papa en Colombia y otros países andinos. La evaluación fue realizada mediante bioensayos en condiciones de laboratorio, utilizando insectos adultos obtenidos en cría y capturados en campo. Se presentan datos sobre el establecimiento del pie de cría. Para la evaluación de la patogenicidad, se evaluó la mortalidad expresada por los aislamientos en relación con el tiempo, estimándose el tiempo letal cincuenta,TL50, y el tiempo letal noventa, TL90, y para dos de los aislamientos fue evaluada la mortalidad en relación con la concentración del inoculo, estimada mediante la concentración letal media, CL50. En todos los casos se presentaron porcentajes de mortalidad mayores del 45%. Se observaron diferencias en la mortalidad de los insectos dependiendo de su origen. De acuerdo con los resultados obtenidos el aislamiento de Beauveria bassiana 9770, aislado de larva de Premnotrypes vorax (TL50:4.7 días - 9.8 días; TL90: 14.1 días - 20.8 días; CL50:7.03 x 10Determinación de Periodos Fisiológicos en la Maduración y Calidad del Aceite de Piñón Blanco (Jatropha curcas L. Determination of Physiological Periods in the Maturation and Quality Oil of Physic nut (Jatropha curcas L.

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    Richer Garay

    2012-01-01

    Full Text Available El objetivo de este trabajo fue determinar el momento óptimo de cosecha de los frutos y los parámetros de calidad del aceite de piñón blanco (Jatropha curcas L, adecuados para la producción de biodiesel. El trabajo fue desarrollado en la Parcela Experimental El Porvenir del Instituto Nacional de Innovación Agraria del Perú. Se evaluó las características físicas de los frutos y de las semillas y las características químicas del aceite. Los frutos de piñón utilizados fueron seleccionados al inicio del fructificación. El estado de maduración R2 tuvo una duración de 29 ±1.8 horas, el estado R3 de 12 ± 1.6 horas, el estado R4 27 ± 1.7 horas y finalmente R5 de 24 ± 1.0 horas. El análisis químico mostró que las semillas de piñón contienen en el estado fisiológico R4 un 51.5% de grasa, mientras que el índice de acidez más elevado se encontró en el R6 con 3.01 mgKOH/g aceite. Los frutos de piñón se pueden cosechar en los estados fisiológicos R3, R4 y R5 por contar con elevado contenido de aceite y bajo índice de acidez.The objective of this work was to determine the optimum time for fruit harvest and the quality parameters of physic nuts (Jatropha curcas L suitable for the production of biodiesel. This work was developed in the experimental station El Porvenir of Instituto Nacional de Innovación Agraria in Perú. The physical characteristics of the fruits and seeds and the chemical characteristics of the oil were evaluated. The fruits used were selected at the beginning of fruiting. The R2 maturation status lasted 29 ±1.8 hours, the state R3 12 ± 1.6 hours, the state R4 27 ± 1.7 hours and finally R5 24 ± 1.0 hours. Chemical analysis showed that the seeds of physic nuts contain 51.5% fat at the physiological state R4 while the highest acidity was found in the R6 with 1.3 mg KOH/g oil. The fruit of physic nuts can be harvested during the physiological states R3, R4 and R5 to have high oil content and low acidity.

  16. Culture of white shrimp (Litopenaeus vannamei Boone, 1931 with zero water exchange and no food addition: an eco-friendly approach Cultivo de camarón blanco (Litopenaeus vannamei Boone, 1931 sin recambio de agua y sin adición de alimento formulado: un sistema amigable con el ambiente

    Directory of Open Access Journals (Sweden)

    Juan Manuel Audelo-Naranjo

    2012-07-01

    Full Text Available Juveniles (3.5 ± 0.3 g of the white shrimp Litopenaeus vannamei were grown during 40 days with no water exchanges, no food addition and four initial densities (25, 50, 75 and 100 g m-3, corresponding to between 8 and 32 shrimp m-2, to determine growth rates, which could be achieved using the periphyton growing on artificial substrates as the only food source. The experimental culture units were 12 polyethylene 1 m³ cylindrical tanks with 4.8 m² of total submerged surface (bottom and walls, provided with 7.2 m² of artificial substrate (Aquamats™. There were no significant differences in the ammonia and nitrite concentrations determined in the four treatments (0.17-0.19 and 0.10-0.11 mg L-1, respectively, which remained below the respective levels of concern for shrimp cultures. Mean survival was similar, and ranged from close to 91 to 97%, whereas there were significant differences in mean individual weight, which ranged from 11.9-10.6 g shrimp-1 for the two low initial densities (25 y 50 g m-3, to 8.3-7.7 g shrimp-1 for the other treatments. However, because of the high survival and of the higher initial density, the best biomass yield was with 100 g m-3. The final nitrogen contents of sediment and water were lower than the initial values, and between 36 and 60% of the difference was converted into shrimp biomass.Durante 40 días se cultivaron juveniles de camarón blanco Litopenaeus vannamei con un peso individual de 3,5 ± 0,3 g y biomasas iniciales de 25, 50, 75 y 100 g m-3 (equivalente a 8-32 ind m-2, sin cambios de agua y adición de alimento, para determinar la tasa de crecimiento usando como única fuente de alimentación el perifiton desarrollado en sustratos artificiales. Se utilizaron estanques cilíndricos de polietileno de 1 m³ con tres réplicas por tratamiento, con una superficie de 4,8 m² (paredes y fondo y 7,1 m² de sustrato artificial (Aquamats™. No se encontraron diferencias significativas entre las concentraciones

  17. Effects of exogenous hydrogen peroxide on growth and physiological index of Citrus reticulata Blanco cv.Dahonggan leaves under low temperature stress%外源H2 O2对低温胁迫下大红柑生长及叶片生理指标的影响

    Institute of Scientific and Technical Information of China (English)

    蒋景龙; 沈季雪; 徐卫平; 田雲; 李丽

    2016-01-01

    以陕西汉中地区栽培的柑橘品种大红柑秋梢为试材,采用Hoagland营养液培养方法,研究了外源过氧化氢(H2O2)对低温(4℃)胁迫下大红柑叶片生长状况及生理指标的影响,筛选缓解柑橘低温伤害的最佳H2 O2处理浓度,并探讨外源H2 O2处理对柑橘耐寒能力的影响机制。结果显示,随低温胁迫时间的延长,大红柑叶片卷曲和叶片细胞膜伤害程度逐渐加重。0.1和1.0 mmol· L-1 H2 O2处理均能缓解低温胁迫引起的大红柑叶片卷曲和萎蔫,但1.0 mmol· L-1 H2 O2比0.1 mmol· L-1 H2 O2缓解低温胁迫对大红柑的伤害效果更为显著。1.0 mmol· L-1 H2 O2显著降低叶片中相对电导率( REC)和丙二醛( MDA)含量的升高,减轻叶片细胞中超氧阴离子(O.-2)和内源H2O2含量的积累,提高超氧化物歧化酶(SOD)和过氧化氢酶(CAT)的活性,从而降低低温对柑橘叶片细胞膜的伤害。较高浓度的外源H2 O2不仅未起到缓解作用,反而产生了一定的毒害作用。%Fall shoot of citrus (Citrus reticulata Blanco cv.Dahonggan) planted in Hanzhong City, Shaanxi Prov-ince , were cultured in Hoagland hydroponic solution and were used as experimental materials .The effects of different concentrations of H 2 O2 treatments on growth and physiological indexes of Dahonggan leaves under low temperature stress (4℃) were studied, in order to select the optimum concentration of H 2 O2 and to investigate the role of exoge-nous H2 O2 in alleviating chilling injury of citrus to cold .It was shown that the degree of curl and cell membrane dam-age of Dahonggan leaf gradually increased with the extension of low temperature stress time .Both 0.1 and 1.0 mmol· L-1 H2 O2 could ease leaves curling and wilting in Dahonggan caused by low temperature stress ;however , the effect of 1.0 mmol· L-1 H2 O2 was more significant than the concentration of 0.1 mmol· L-1 on alleviating

  18. Cuestión de alteridades: la aciaga vida del Tupã guaraní en la literatura de los "blancos" y en la vital versión oral de los mbyá Uma questão de alteridades: a infortunada vida do Tupã guarani na literatura dos brancos e na vital versão oral dos mbyá The Question of Alterity: the Bitter Life of the Guaraní Tupã According to the White Man's Literature and to the Mbyá's Lively Oral Version

    Directory of Open Access Journals (Sweden)

    Irma Ruiz

    2009-12-01

    Full Text Available Durante siglos, parte del mundo letrado estuvo atento a las opiniones de los blancos sobre el pensamiento y las acciones de los guaraní ; eran tiempos exclusivos de la antropología sobre el Otro. En la actualidad, se pretende dar cuenta también de la antropología del Otro sobre nosotros. A fin de mostrar ambas caras, en este artículo se confrontan voces autorizadas de blancos que escribieron sobre los guaraní , con otras de los mbyá-guaraní que hablaron sobre su cultura y la de los blancos. El eje escogido es la figura de Tupã , de cuyo nombre se apropiaron los evangelizadores coloniales para construir su discurso monoteísta. En este juego de alteridades, se analiza primero la infausta "vida literaria" del personaje para luego oír voces de los aún damnificados por ese hecho histórico. Esta confrontación, además de revelar inconsistencias prejuiciosas en algunos escritos y estrategias guaraní para proteger su politeísmo, permite apreciar la magnitud de la violencia simbólica ínsita en la evangelización.Durante séculos, parte do mundo letrado esteve atento às opiniões dos brancos sobre o pensamento e as ações dos guarani; eram tempos exclusivos da antropologia sobre o Outro. No presente, pretende-se dar conta também da antropologia do Outro sobre nós mesmos. Com o objetivo de mostrar essas duas faces, confrontam-se neste artigo vozes autorizadas de brancos que escreveram sobre os guarani com vozes outras dos mbyá-guarani que falaram sobre a sua cultura e a dos brancos. O eixo escolhido é a figura do Tupã, nome que foi apropriado pelos evangelizadores coloniais para construírem seu discurso monoteísta. Em este jogo de alteridades, será analisada, primeiro, a desventurada "vida literária" da personagem, para depois ouvir vozes dos ainda danificados por aquele fato histórico. Este confronto, além de revelar inconsistências preconceituosas em alguns escritos e estratégias guarani protegendo o seu polite

  19. [Pharmacognostic studies on the peel of Citrus reticulata Blanco cv. zhangshuensis and Citrus reticulata Blanco Var. kinokuni (Tanaka) H. H. Hu produced in Jiangxi].

    Science.gov (United States)

    Fang, C S; Wang, A S

    1989-10-01

    Pharmacognostical studies on the peel of Citrus reticulata cv. zhangshuensis and Citrus reticulata var. kinokuni have been carried out in comparison with four crude drugs of Chenpi. Information on the research of resources of these two drugs is provided. PMID:2597317

  1. Every feature a delicacy——Blanco technology%餐饮设备之流行风——解读德国BLANCO

    Institute of Scientific and Technical Information of China (English)

    洪玺

    2006-01-01

    随着人类社会的进步,“餐饮”不再是单纯满足人们的生存需要,而成为了一门学问.一种艺术。为了顺应这一潮流.餐饮业同仁不惜巨资进行装潢.只求营造情调高雅,舒适宜人的就餐环境。经济的持续稳定发展给我国餐饮业带来了巨大的发展空间.海内外的商业人士.投资者.旅游者纷纷来到中国.这给我国餐饮提出了更高的要求,众所周知.高效优质的厨房设备是提供高品质食物的重要保障.因此,选择合适的厨房配套设施及食物供给设备成了大家共同关心的问题。

  2. Cytotoxic activity of crude extracts and fractions from Premna odorata (Blanco), Artocarpus camansi (Blanco) and Gliricidia sepium (Jacq.) against selected human cancer cell lines

    Institute of Scientific and Technical Information of China (English)

    Ourlad Alzeus G Tantengco; Sonia D Jacinto

    2015-01-01

    Objective: To evaluate the cytotoxic activities of Premna odorata (P. odorata) leaves and bark, Artocarpus camansi (A. camansi) and Gliricidia sepium against selected human cancer cell lines by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Methods: The crude extracts of P. odorata, A. camansi and Gliricidia sepium were subjected to liquid–liquid partitioning by using hexane and ethyl acetate to separate compounds based on their polarity. The fractions were tested for their cytotoxic activity against human colon cancer cell line (HCT116), breast cancer cell line (MCF-7), lung adenocarcinoma cell line (A549) and Chinese hamster ovary cell line (AA8) by using MTT assay. Results: Based on the standard values of toxicity set by the study of Suffness and Pezzuto, P. odorata leaves and P. odorata bark hexane fractions and A. camansi leaves were all considered highly cytotoxic against the selected human cancer cell lines. P. odorata bark hexane extract exhibited the highest selectivity index for HCT116, MCF-7 and A549 cancer cell lines. Conclusions: The results obtained indicated that P. odorata leaves and bark and A. camansi leaves have excellent cytotoxic activity and warrant further studies to isolate novel compounds for chemotherapeutic use.

  3. Cytotoxic activity of crude extracts and fractions from Premna odorata(Blanco),Artocarpus camansi(Blanco) and Gliricidia sepium(Jacq.) against selected human cancer cell lines

    Institute of Scientific and Technical Information of China (English)

    Ourlad; Alzeus; G.Tantengco; Sonia; D.Jacinto

    2015-01-01

    Objective:To evaluate the cytotoxic activities of Premna odorata(P.odorata)leaves and bark,Artocarpus camansi(A.camansi)and Gliricidia sepium against selected human cancer cell lines by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT)assay.Methods:The crude extracts of P.odorata,A.camansi and Gliricidia sepium were subjected to liquid–liquid partitioning by using hexane and ethyl acetate to separate compounds based on their polarity.The fractions were tested for their cytotoxic activity against human colon cancer cell line(HCT116),breast cancer cell line(MCF-7),lung adenocarcinoma cell line(A549)and Chinese hamster ovary cell line(AA8)by using MTT assay.Results:Based on the standard values of toxicity set by the study of Suffness and Pezzuto,P.odorata leaves and P.odorata bark hexane fractions and A.camansi leaves were all considered highly cytotoxic against the selected human cancer cell lines.P.odorata bark hexane extract exhibited the highest selectivity index for HCT116,MCF-7 and A549 cancer cell lines.Conclusions:The results obtained indicated that P.odorata leaves and bark and A.camansi leaves have excellent cytotoxic activity and warrant further studies to isolate novel compounds for chemotherapeutic use.

  4. Phenolic compositions and antioxidant capacities of Chinese wild mandarin (Citrus reticulata Blanco) fruits.

    Science.gov (United States)

    Zhang, Yuanmei; Sun, Yujing; Xi, Wanpeng; Shen, Yan; Qiao, Liping; Zhong, Liezhou; Ye, Xingqian; Zhou, Zhiqin

    2014-02-15

    As one of the most important centres of origin for the genus Citrus L., China is rich in wild mandarin germplasm. In this study, phenolic compounds in the peels of 14 wild mandarin genotypes native to China were determined and their antioxidant capacities were evaluated using DPPH, FRAP, ABTS and ORAC methods. We found that Nieduyeju had the highest total phenol content (51.14 mg/g DW), and Wulongsuanju had the highest total flavonoid content (20.66 mg/g DW). Hesperidin, the dominant flavonoid, was observed to be highest in Guangxihongpisuanju (55.98 mg/g DW). Ferulic acid was the most abundant phenolic acid analyzed, and Nieduyeju (7780.17 μg/g DW) and Guangxihongpisuanju (13,607.19 μg/g DW) had the highest contents of extractable and bound phenolic acid, respectively. Antioxidant potency composite (APC) index showed obvious variations ranging from 58.84 to 98.89 in the studied wild mandarins, among them, Nieduyeju had the highest APC index. Overall, Guangxihongpisuanju, Nieduyeju, Cupigoushigan and Daoxianyeju contained more phenolics and exhibited higher antioxidant capacities than the mandarin cultivars Satsuma and Ponkan. PMID:24128530

  5. GERENCIA AVANZADA: UN BLANCO CADA VEZ MÁS MÓVIL

    Directory of Open Access Journals (Sweden)

    Luis Armando Gutiérrez Larrisgoitia

    2005-11-01

    Full Text Available El artículo desarrolla la prospectiva de las herramientas y modas gerenciales más conspicuas de los últimos cincuenta años, para luego caracterizar cualitativamente dichas prácticas según su impacto alrededor de tres dominios principales de la acción gerencial: la información, la tecnología, los recursos humanos, y sus combinaciones; el análisis subsiguiente permite hacer inferencias sobre cuánto de la “gerencia avanzada” es proactivo y cuanto es reactivo. El objetivo es hacer un pronóstico sobre las características que compartirán muchas prácticas gerenciales en el S.XXI, a partir de los atributos que las distingan, y del grado de congruencia con los entornos que exhiban.

  6. ¿El retorno de los elefantes blancos? África, deuda y pobreza

    OpenAIRE

    Artur Colom Jaén

    2003-01-01

    El objetivo de este artículo es analizar las nuevas conceptualizaciones de lucha contra la pobreza surgidas recientemente, al amparo de la iniciativa de condonación de la deuda para los países más pobres, impulsada por el Banco Mundial y el Fondo Monetario Internacional. Desde mediados de los años 90, ambas instituciones vienen operando un cambio de estrategia en el sentido apuntado, vinculando la condonación de deuda (Iniciativa PPAE), con la elaboración e implementación de programas integra...

  7. Solid targets for production of radioisotopes with cyclotron; Blancos solidos para produccion de radioisotopos con ciclotron

    Energy Technology Data Exchange (ETDEWEB)

    Paredes G, L.; Balcazar G, M. [Instituto Nacional de Investigaciones Nucleares, Direccion de Investigacion Tecnologica, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    1999-07-01

    The design of targets for production of radioisotopes and radiopharmaceuticals of cyclotron to medical applications requires a detailed analysis of several variables such as: cyclotron operation conditions, choice of used materials as target and their physicochemical characteristics, activity calculation, the yielding of each radioisotope by irradiation, the competition of nuclear reactions in function of the projectiles energy and the collision processes amongst others. The objective of this work is to determine the equations for the calculation for yielding of solid targets at the end of the proton irradiation. (Author)

  8. Filtración estabilizante en vinos blancos: una alternativa a la bentonita

    OpenAIRE

    López Bonillo, Francisco; Achaerandio Puente, María Isabel; Ferrando, Montserrat; Güell, Carme; Labbé, Mariela; E. Lira; Pandolfi, E.; Pashova, V.; Salazar González, Fernando Noé

    2013-01-01

    La obra recoge los trabajos cientificos presentados a la 27ª reunión anual del grupo de trabajo de experimentación en viticultura y enología, que con el apoyo del Ministerio de Agricultura, Alimentación y Medio Ambiente, se reunió durante los días 8,9 y 10 de mayo de 2012, en el Segurde-Boqueixon (A Coruña). A la reunión asistieron 32 técnicos e investigadores de 14 centros e institutos. Se presentaron un total de 19 comunicaciones, 13 de viticultura, 6 de enología y una sobre la viticultura ...

  9. Itinerari d’esilio, nel nome del Padre. Desde los blancos manicomios di Margarita Mateo Palmer

    Directory of Open Access Journals (Sweden)

    Laura Scarabelli

    2014-06-01

    Full Text Available These are the signs that mark Margarita Mateo Palmer’s novel. This writing from the asylum challenges the preludes to immobility evoked by a place of order and restraint, thus enabling the emergence of a series of paths, which manage to shake the broken identity of the protagonist, Gelsomina, and of her time. Those intersections allow reflection on the contemporary Cuban condition, bent by the twilight of the revolutionary ideals, and at the same time to wonder about the human condition, savaged by the centripetal drive of consumerism and disposable worldviews, which are increasingly prone to wipe out any desiring tension in favour of magical objects of pleasure, hollow and ephemeral pret a porter [1] simulacra.This paper aims to analyse the narrative structure of the novel by means of the tools offered by Massimo Recalcati’s interpretation of Lacan’s psychoanalysis. Particular attention will be devoted to the interplay between the protagonists, who embody clinical figures and also symbolise different dimensions of contemporary Cuban experience. [1] This reading of the twilight of ideologies and of the vaporization of the Name of the Father is indebted to Massimo Recalcati’s thought (2010; 2011.

  10. Evaluación del riesgo ambiental de carbofurano en bioensayos con organismos no blanco

    Directory of Open Access Journals (Sweden)

    José Alberto Iannacone

    2011-06-01

    Full Text Available El carbofurano es uno de los plaguicidas más empleado en la agricultura peruana. El objetivo de este trabajo fue evaluar el riesgo ambiental del carbofurano en bioensayos de toxicidad, sobre once especies no destinatarias. La siguiente secuencia relativa de mayor a menor cocientes de riesgo (CR del carbofurano para los 19 puntos finales de efecto en once especies fue encontrada: Daphnia magna (mortalidad > Lemna minor (inhibición de formación de las hojas > Paracheirodon innesi (nado extraño = P. innesi (incremento del movimiento opercular > Chironomus calligraphus (mortalidad > L. minor (necrosis > P. innesi (mortalidad > L. minor (clorosis > Tetrapygus niger (inhibición de la fecundación > Coturnix japonica (mortalidad > Oncorhynchus mykiss (incremento de coloración > Ceraeochrysa cincta (no eclosión de huevos > O. mykiss (mortalidad con oxígeno > O. mykiss (mortalidad sin oxígeno > Trichogramma pretiosum (mortalidad > C. cincta (mortalidad > T. pretiosum (no emergencia de adultos > Trichogramma pintoi (mortalidad > Beauveria bassiana (inhibición del crecimiento. Los cocientes de riesgo (CR indicaron en todos los casos un alto riesgo del carbofurano principalmente en el ambiente acuático en comparación con el terrestre.Carbofuran is one of the most employed pesticides in Peruvian agriculture. This research aimed to evaluate the risk assessment in bioassays of carbofuran on eleven non-target species. The following relative sequence in decreasing ecotoxicity order in terms of RQ (Risk quotient to carbofuran to 19 end points on 11 species was found: Daphnia magna (mortality > Lemna minor (inhibition of new fronds > Paracheirodon innesi (strange swim = P. innesi (increase of opercula movement > Chironomus calligraphus (mortality > L. minor (necrosis > P. innesi (mortality > L. minor (chlorosis > Tetrapygus niger (inhibition of fertilization> Coturnix japonica (mortality > Oncorhynchus mykiss (increase of coloration > Ceraeochrysa cincta (not hatch of eggs > O. mykiss (mortality without oxygen > O. mykiss (mortality with oxygen > Trichogramma pretiosum (mortality > C. cincta (mortality > T. pretiosum (not emergence of adults > Trichogramma pintoi (mortality > Beauveria bassiana (inhibition of growth. Risk quotient (RQ indicated that carbofuran is highly risky mainly to aquatic environment than terrestrial.

  11. Influence of Application Time of Paclobutrazol on Growth Retardation in Ponkan (Citrus reticulata Blanco cv. Yoshida)

    OpenAIRE

    マター, メベロ; 冨永, 茂人; トミナガ, シゲト; Mataa, Mebelo; Tominaga, Shigeto

    1998-01-01

    Paclobutrazol, a gibberellic acid biosynthesis inhibitor was sprayed at 840ppm during three growth stages ; firstly when the spring shoot length was about 0.5cm, secondly when it was between 1.0 and 2.0cm and thirdly when it was over 2.0cm, a non-sprayed tretment was used as a control. Non-structural carbohydrates as well as vegetative and reproductive growth were monitored. Early application of growth retardant reduced shoot growth and leaf area by 50% and 12% respectively. Initially, the ap...

  12. Mecanismos moleculares de resistencia a las enfermedades vesiculares virales del ganado criollo colombiano blanco orejinegro (BON

    Directory of Open Access Journals (Sweden)

    Jorge Eliécer Ossa Londoño

    2001-04-01

    Full Text Available

    En Colombia circulan dos virus que producen enfermedad vesicular en bovinos: Fiebre Aftosa (VFA y Estomatitis Vesicular (VEV. El genoma de estos es ssRNA, el cual durante la replicación da lugar a dsRNA, que es el más potente inductor de interferón (IFN tipo I. El IFN activa tres rutas antivirales: 2-5 oligoadenilatosintetasa (2-5A, Proteina-kinasa dependiente de dsRNA (PKR y proteína Mx; las dos primeras inducen apoptosis (1,2. Hemos demostrado, in vitro, que en bovinos BON existe polimorfismo fenotípico en resistencia/susceptibilidad al VFA y al VEV. También se demostró asociación entre producción de IFN y resistencia in vitro al VFA (3, y polimorfismo en la expresión celular de integrina αV3, que es uno de los receptores utilizados por este virus. Este estudio pretende determinar el(los mecanismo(s molecular(es responsables de la resistencia/susceptibilidad, in vitro, al VFA y al VEV con énfasis en IFN, apoptosis y receptores celulares

  13. Indios y blancos en la ciudad minera: Cerro de Pasco en el siglo XIX1

    OpenAIRE

    Contreras, Carlos

    2014-01-01

    En este artículo se presenta una descripción de las condiciones de vida, materiales y culturales en Cerro de Pasco durante el siglo pasado, cuando era una de las principales ciudades de la sierra peruana, tanto en lo económico como en lo demográfico.El autor discute las características de la estructura social de Cerro de Pasco, recalcando la yuxtaposición de elementos económicos y étnico-culturales y el tipo de relaciones sociales prevalecientes. Luego describe las características y condicion...

  14. Transferencias condicionadas e igualdad de género: ¿blancos, negros o grises?

    NARCIS (Netherlands)

    K. Voorend (Koen); J.M. Franzoni

    2008-01-01

    textabstract¿En qué medida las transferencias condicionadas (TMC), programas “estrella” de la nueva generación de la política social latinoamericana, inhiben o promueven mayores grados de igualdad de género? Usando un instrumento teórico-empírico novedoso, y a partir de fuentes primarias y secundari

  15. El relato de las noticias sobre delito de cuello blanco. La criminalidad de etiqueta

    Directory of Open Access Journals (Sweden)

    Flavia Ivana Ragagnin

    2005-01-01

    Full Text Available A partir de las teorías de la comunicación, estudios sobre periodismo, la sociología jurídica, la criminología crítica y las teorías del etiquetamiento, la autora revela cómo desde el relato de los medios de comunicación el tratamiento de la información del delito en la clase social alta es diferente con respecto a la criminalidad común. La violencia simbólica que se sustrae del relato es indicio de esta diferenciación y se torna peligrosa para las instituciones democráticas al normalizar la violencia anómica, la ineficacia judicial y la impunidad.

  16. 75 FR 39275 - Notice of Realty Action: Recreation and Public Purposes Act Classification; Rio Blanco County...

    Science.gov (United States)

    2010-07-08

    .... SUMMARY: The Bureau of Land Management (BLM) has examined and found suitable for classification for lease... regarding the proposed lease/conveyance or classification on or before August 23, 2010. ADDRESSES: Comments... classification for lease and subsequent conveyance under the provisions of the R&PP Act, as amended, (43...

  17. Ajo Blanco 会所里的美味寻访

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    上海的会所众多,会所中的各式餐厅也数不胜数,在追求美食体验的同时,食客们更是希望追求精神的享受,在浦东新区云山路1988号Vizcaya会所里就有一家远离尘嚣的餐厅,能令你放松心情,尽享美食。

  18. 基于Logistic模型研究南丰蜜橘(Citrus reticulata Blanco)果实的生长动态%A Study on Growth Dynamic of Nanfeng Tangerine(Citrus reticulata Blanco) Fruit Based on Logistic Model

    Institute of Scientific and Technical Information of China (English)

    徐回林; 陈金印; 辜青青; 喻晓强; 曾涛

    2010-01-01

    应用Origin软件对南丰蜜橘果实生长动态进行Logistic曲线拟合,并对拟合结果进行分析和验证.结果表明,南丰蜜橘单果重与果实发育时间可以用Logistic曲线方程拟合,南丰蜜橘各品(株)系果实单果重的Logistic曲线方程相关系数大于0.95,并呈显著水平;南丰蜜橘小果系SS-28和小果系97-1的Logistic曲线方程的预测值与实测值的相关系数分别为0.9033和0.9444,并呈显著水平,标准误差分别为4.5063和3.2684.Logistic曲线能较好地反映南丰蜜橘果实的生长动态.

  19. Nondestructive quality assessment of shogun mandarin fruits (Citrus reticulata Blanco cv. Shogun using compton scattering of gamma-ray technique

    Directory of Open Access Journals (Sweden)

    Punnary, K.

    2005-12-01

    Full Text Available Compton scattering of gamma radiation was applied for nondestructive testing of the shogun mandarin fruits with good quality defined as no dry sack or dry fibrous structures inside. In principle, the scattering deviated angles to the left and right of a gamma ray that penetrates through a homogeneous fibrous structure meat of any orange fruit should be equal. The source Cs-137, with an initial gamma ray activity of 9.25 mCi, placed in a 7 cm thick lead shielding, was radiated through a 10 mm diameter collimator onto any single fruit to be tested. A NaI(Tl-detector, oriented perpendicular to both left and right of theincoming beam, was placed 5 cm from the fruit. Results showed that the net count rate of the scattering beam between the left and right counting for good-quality shogun mandarin with proper tissue for consumption was less than 85 counts per minute (average 83 cpm, whereas shogun mandarin with dry sack, which were unfit for consumption, had twice that rate or more (average 175 cpm.

  20. Studies on �Kinnow� (Citrus reticulata Blanco. Decline in Relation to Soil-Plant Nutritional Status

    Directory of Open Access Journals (Sweden)

    Parveen KUMAR

    2011-08-01

    Full Text Available �Kinnow� decline was studied in relation to soil plant nutritional status under semi arid condition of Hisar (India. There were no differences between the soil pH, electrical conductivity and calcium carbonate of healthy and declining trees. The soil under the healthy trees had significantly higher organic carbon (0.46% than that under declining trees (0.35%. The nutrients viz., N, P, Zn, Cu, Mn and Fe in the soil under healthy and declining trees did not differ significantly except K. Leaf N, Zn, Cu, Mn and Fe were significantly more in the healthy trees. The deficiency of N, P, Zn and Mn in the leaves of both categories of trees could be attributed to low contents of these nutrients in the soil under healthy and declining trees. Growth, yield and fruit quality were better in healthy trees as compared to declining trees. The yield on kg per tree basis in declining trees reduced (8.43 kg/tree as compared to that in healthy trees (20.74 kg/tree. Low organic carbon, soil N, Zn and Mn content could be associated with the declining problem of �Kinnow�.

  1. The use of random amplified polymorphic DNA to evaluate the genetic variability of Ponkan mandarin (Citrus reticulata Blanco accessions

    Directory of Open Access Journals (Sweden)

    Coletta Filho Helvécio Della

    2000-01-01

    Full Text Available RAPD analysis of 19 Ponkan mandarin accessions was performed using 25 random primers. Of 112 amplification products selected, only 32 were polymorphic across five accessions. The absence of genetic variability among the other 14 accessions suggested that they were either clonal propagations with different local names, or that they had undetectable genetic variability, such as point mutations which cannot be detected by RAPD.

  2. In vivo Induction of Tetraploid in Tangerine Citrus Plants (Citrus reticulata Blanco) with the Use of Colchicine.

    Science.gov (United States)

    Surson, Suntaree; Sitthaphanit, Suphasit; Wongma, Nattapong

    2015-01-01

    This in vivo experiment was carried out at Sakhon Nakhon Rajabhat University, Sakhon Nakhon Province, Thailand during March-October 2013. The study aims to search for some possibilities in inducing a large number of tetraploid sets of chromosomes in tangerine citrus seedlings with the use of colchicine chemical. A Randomized Complete Block Design (RCBD) with four replications was used. Seeds of tangerine citrus were treated with colchicine solutions. The experiment consisted of seven treatments, i.e., T1 with 0.0% colchicine (control), T2 with 0.2% colchicine solution and submerged for 12 h, T3 with 0.2% colchicine solution and submerged for 24 h, T4 with 0.4% colchicine solution and submerged for 12 h, T5 with 0.4% colchicine solution and submerged for 24 h, T6 with 0.8% colchicine solution and submerged for 12 h, T7 with 0.8% colchicine solution and submerged for 24 h. The experiment was conducted for 91 days. The results showed that colchicine compound severely and significantly affected germination of tangerine citrus seeds. Colchicine of 0.2% in the solution with seeds submerged for 24 h gave the highest percentages of tetraploid chromosomes in seedlings of tangerine citrus (63.64%). Colchicine significantly affected seed germination, plant height, stomata density and leaf index of the tangerine citrus seeds and seedlings. Colchicine had no significant effect on poly-embryos, mono-embryos, leaf number, leaf area, leaf weight, leaf length and stomata length of the tangerine citrus seedlings. PMID:26353415

  3. Zinc stress induces physiological, ultra-structural and biochemical changes in mandarin orange (Citrus reticulata Blanco) seedlings.

    Science.gov (United States)

    Subba, Pratap; Mukhopadhyay, Mainaak; Mahato, Suresh Kumar; Bhutia, Karma Diki; Mondal, Tapan Kumar; Ghosh, Swapan Kumar

    2014-10-01

    Zinc (Zn) is an essential micronutrient for higher plants; yet, at higher concentrations it is toxic. In order to explore the effect of Zn stress on growth, biochemical, physiological and ultra-structural changes, 1 year old mandarin plants were grown under various Zn concentrations (1, 2, 3, 4, 5, 10 15 and 20 mM) for 14 weeks. The biomass of the plants increased with increasing Zn concentrations and finally declined under excess Zn concentration but the prime increase was observed at 4 and 5 mM Zn. Zn stress reduced the photosynthetic rate, stomatal conductance, and transpiration along with reduction of chlorophyll a, chlorophyll b, and carotenoids content in leaf. Superoxide anion, malondialdehyde, hydrogen peroxide and electrolyte leakage were elevated in Zn stressed plants. The activities of ascorbate peroxidase (EC 1.11.1.11), catalase (EC 1.11.1.6), superoxide dismutase (EC 1.15.1.1) and peroxidase (EC 1.11.1.7) enzymes were increased in both Zn-deficient and Zn-excess plants. Therefore it is suggested that antioxidant defense system did not sufficiently protect the plants under rigorous Zn stress which was also corroborated by the alteration in cell ultrastructure as revealed by transmission electron microscopy. PMID:25320469

  4. Digital Gene Expression Analysis of Ponkan Mandarin (Citrus reticulata Blanco) in Response to Asia Citrus Psyllid-Vectored Huanglongbing Infection.

    Science.gov (United States)

    Zhong, Yun; Cheng, Chunzhen; Jiang, Bo; Jiang, Nonghui; Zhang, Yongyan; Hu, Minlun; Zhong, Guangyan

    2016-01-01

    Citrus Huanglongbing (HLB), the most destructive citrus disease, can be transmitted by psyllids and diseased budwoods. Although the final symptoms of the two main HLB transmission ways were similar and hard to distinguish, the host responses might be different. In this study, the global gene changes in leaves of ponkan (Citrus reticulata) mandarin trees following psyllid-transmission of HLB were analyzed at the early symptomatic stage (13 weeks post inoculation, wpi) and late symptomatic stage (26 wpi) using digital gene expression (DGE) profiling. At 13 wpi, 2452 genes were downregulated while only 604 genes were upregulated in HLB infected ponkan leaves but no pathway enrichment was identified. Gene function analysis showed impairment in defense at the early stage of infection. At late stage of 26 wpi, however, differentially expressed genes (DEGs) involved in carbohydrate metabolism, plant defense, hormone signaling, secondary metabolism, transcription regulation were overwhelmingly upregulated, indicating that the defense reactions were eventually activated. The results indicated that HLB bacterial infection significantly influenced ponkan gene expression, and a delayed response of the host to the fast growing bacteria might be responsible for its failure in fighting against the bacteria. PMID:27384559

  5. Tolerance of the trifoliate citrus hybrid US-897 (Citrus reticulata Blanco x Poncirus trifoliata L. Raf.) to Huanglongbing

    Science.gov (United States)

    Huanglongbing (HLB) is a destructive disease of citrus in most citrus-producing countries worldwide. The disease, presumably caused by phloem-limited bacteria of the genus Candidatus Liberibacter, affects all known citrus species and citrus relatives with little known resistance. Typical disease s...

  6. Use of an infrared thermometer for assessment of plant water stress in neck orange (Citrus reticulata Blanco

    Directory of Open Access Journals (Sweden)

    Sayan Sdoodee

    2006-11-01

    Full Text Available In general, water stress causes stomatal closure in citrus, and this leads to higher leaf temperature. Recently, it has been reported that infrared thermometry technique can be used for detecting stomatal closure indirectly to assess plant water stress. Therefore, it was proposed to apply to neck orange. An experiment was arranged as a completely randomized design. There were 3 treatments of watering levels: 1 wellwatering (W1, 2 3-day interval watering (W2, and 3 6-day interval watering (W3 with 6 replicates. Eighteen 2-year-old trees of neck orange were used, and each tree was grown in a container (0.4 m3 filled with mixed media of soil, compost and sand (1:1:1. During 18 days of the experimental period, it was found that leaf water potential and stomatal conductance of the plants in W2 and W3 treatments decreased with the progress of water stress. There was high correlation (r2 = 0.71** between leaf water potential and stomatal conductance as a linear regression (Y = 0.0044X-1.8635. Canopy temperature (Tc and air temperature (Ta of each tree were measured by an infrared thermometer, and Tc-Ta was assessed. At the end of the experimental period, it was found that Tc-Ta was significantly highest in the W3 treatment (3.5ºC followed by the of W2 treatment (2ºC, while it was lowest in the W1 treatment (1ºC. The relationship between Tc-Ta and stomatal conductance was high as polynomial (Y = 0.0002X2 0.0572X+3.9878, r2 = 0.70**. This indicated that stomatal closure or decreasing stomatal conductance caused increasing of Tc-Ta in the leaves. Hence, it suggests that infrared thermometer is a convenient device for the assessment of plant water stress in neck orange.

  7. Conservación de la biodiversidad en sistemas silvopastoriles de Matiguás y Rio Blanco (Matagalpa, Nicaragua

    Directory of Open Access Journals (Sweden)

    A. M. Pérez

    2006-01-01

    Full Text Available Con el fin de estudiar la relación entre uso del suelo y diferentes componentes de la biodiversidad de aves moluscos y plantas, se seleccionaron 12 usos de suelo en 41 fincas, 28 en Bulbul y 13 en Paiwas (Matagalpa, Nicaragua. Para el monitoreo de la vegetación se establecieron 10 parcelas en cada uso de suelo, siempre que fue posible, donde se estudió el número de árboles, densidad de tallos y arbustos, perfiles de altura del follaje, altura promedio del dosel, porcentaje de cobertura del dosel y cobertura del suelo. Para el estudio de las aves se realizaron puntos de conteo en todas las fincas seleccionadas. Para el estudio de los moluscos se muestreó en el 50% de las parcelas de vegetación y aves. Se realizaron 3 campañas de muestreo para el estudio de las aves, 2 para los moluscos y 1 para la vegetación. Se han identificado un total de 170 especies de plantas, 180 especies de aves y 56 especies de moluscos. Se ha concluido el estudio de la estructura de la vegetación y las comunidades de aves, y se ha muestreado en 113 parcelas distribuidas en 12 tipos de usos de suelo y 41 fincas, así como 10 parcelas en el Cerro Quirragua para un total de 123 parcelas. Los valores más altos de riqueza de especies en plantas, se encontraron en el bosque primario del Cerro Quirragua (S=46 y en los bosques riparios (S=43. En aves, se encontraron en los bosques riparios (S=74 y en bosques secundarios intervenidos (S=72. En moluscos, en bosques primarios (S=35, seguidos por los Tacotales (S=28. Los valores más altos de biodiversidad para plantas se encontraron en el bBosque primario de Quirragua (H´=3,34 y en los bosques riparios (H´=3,12. Para aves, en bosques riparios (H´=3,92 y bosques secundarios intervenidos (H´=3,86. Para moluscos, los bosques primarios (H’=2,93 y los bosques riparios (H’=2,46.

  8. Creación de una bodega de vinos blancos y tintos Premium en D.O.Ca. Rioja

    OpenAIRE

    Muga-Palacín, Isaac

    2014-01-01

    Este plan de negocio demuestra que es factible crear una bodega en D.O. Calificada Rioja de tamaño reducido y la elaboración de productos de calidad aprovechando el patrimonio vitícola del que disponemos, el amplio conocimiento del sector y conocimientos técnicos. Éstos nos llevan a crear un modelo de negocio sostenible y viable aprovechando un nicho de mercado poco explotado y que ofrece unos productos que son demandados y apreciados por los amantes del buen vino. La clave de este proyect...

  9. VizieR Online Data Catalog: Runaway carbon stars of Blanco & McCarthy field 37 (Loup+, 2003)

    Science.gov (United States)

    Loup, C.; Delmotte, N.; Egret, D.; Cioni, M.-R.; Genova, F.

    2008-07-01

    We have been recently faced with the problem of cross-identifying stars recorded in historical catalogues with those extracted from recent fully digitized surveys (such as DENIS and 2MASS). Positions mentioned in the old catalogues are frequently of poor precision, but are generally accompanied by finding charts where the interesting objects are flagged. Those finding charts are sometimes our only link with the accumulated knowledge of past literature. While checking the identification of some of these objects in several catalogues, we had the surprise to discover a number of discrepancies in recent works.The main reason for these discrepancies was generally the blind application of the smallest difference in position as the criterion to identify sources from one historical catalogue to those in more recent surveys. In this paper we give examples of such mis-identifications, and show how we were able to find and correct them.We present modern procedures to discover and solve cross-identification problems, such as loading digitized images of the sky through the Aladin service at CDS, and overlaying entries from historical catalogues and modern surveys. We conclude that the use of good finding charts still remains the ultimate (though time-consuming) tool to ascertain cross-identifications in difficult cases. (2 data files).

  10. Measurement of carbon deposit at to irradiate a target; Medicion del deposito de carbon al irradiar un blanco

    Energy Technology Data Exchange (ETDEWEB)

    Rosales M, P.; Aguilera R, E. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    2004-07-01

    Backscattering data obtained when bombarding a thin target of {sup 12} C deposited on a thick substrate of Ta are analyzed, with a ion beam of {sup 12} C for high fluences and different energy between 9.85 and 13 MeV. A variation in the thickness of the target is observed and is found its correlation with the fluence in the target. (Author)

  11. Digital Gene Expression Analysis of Ponkan Mandarin (Citrus reticulata Blanco in Response to Asia Citrus Psyllid-Vectored Huanglongbing Infection

    Directory of Open Access Journals (Sweden)

    Yun Zhong

    2016-07-01

    Full Text Available Citrus Huanglongbing (HLB, the most destructive citrus disease, can be transmitted by psyllids and diseased budwoods. Although the final symptoms of the two main HLB transmission ways were similar and hard to distinguish, the host responses might be different. In this study, the global gene changes in leaves of ponkan (Citrus reticulata mandarin trees following psyllid-transmission of HLB were analyzed at the early symptomatic stage (13 weeks post inoculation, wpi and late symptomatic stage (26 wpi using digital gene expression (DGE profiling. At 13 wpi, 2452 genes were downregulated while only 604 genes were upregulated in HLB infected ponkan leaves but no pathway enrichment was identified. Gene function analysis showed impairment in defense at the early stage of infection. At late stage of 26 wpi, however, differentially expressed genes (DEGs involved in carbohydrate metabolism, plant defense, hormone signaling, secondary metabolism, transcription regulation were overwhelmingly upregulated, indicating that the defense reactions were eventually activated. The results indicated that HLB bacterial infection significantly influenced ponkan gene expression, and a delayed response of the host to the fast growing bacteria might be responsible for its failure in fighting against the bacteria.

  12. Arte rupestre paleolítico en el yacimiento solutrense de La Cueva de Ambrosio (Vélez-Blanco, Almeria

    Directory of Open Access Journals (Sweden)

    Ripoll Lopez, Sergio

    1994-12-01

    Full Text Available In the solutrean site o[ La Cueva de Ambrosio several engraved and painted figures dated on the Upper palaeolithic, have been found during the field works of[ 1992 and 1994. In the panel I we have identified an excellent representation of a horse, a bird, one bovidae and another protome of a horse. Below this surface there are many red ochre wallpaintings covered by a calcitic path and for the time being we are unable to give any interpretation for it. In the second panel we have discovered one splendid red painted horse, two more engraved horses and a little head of one other black painted horse. There are many engraved lines and pictural rests that must be studied in the future. The exceptionality of this discovery is that we can interrelate perfectly these rock art paintings with the archaeological levels clearly defined chronologically and culturally (ca. 16000 B.P., Upper Solutrean and Final Solutrean from the same site.

    En el yacimiento solutrense de La Cueva de Ambrosio se han encontrado durante las campañas de 1992 y 1994 un conjunto de representaciones artísticas parietales pintadas y grabadas del Paleolítico Superior. Entre los grabados del panel I, se ha descifrado una excelente silueta de caballo, una representación de ave, unos protomos de bóvido y de caballo, así como otros trazos todavía no interpretados. En la parte inferior del panel existen pinturas, poco visibles a causa de una colada calcítica y de momento no es posible interpretar ninguna representación figurativa. En el panel II se han identificado un espléndido caballo pintado en ocre rojo, otros dos caballos grabados, un protomos de caballo pintado en negro y gran cantidad de líneas incisas en trazo múltiple, así como otros restos pictóricos todavía por identificar. La excepcionalidad del hallazgo reside en el hecho de poder interrelacionar perfectamente estas muestras de arte con los niveles arqueológicos claramente definidos desde el punto de vista cultural y cronoestratigráfico (ca. 16000 B.P. Solutrense Superior y Solutrense Superior Evolucionado del mismo yacimiento.

  13. Efecto de Debaryomyces hansenii en la respuesta antioxidante de juveniles de camarón blanco Litopenaeus vannamei

    Directory of Open Access Journals (Sweden)

    María Pacheco M.

    2012-04-01

    Full Text Available Objetivo. Determinar la respuesta antioxidante [actividad de superóxido dismutasa (SOD y catalasa (CAT] así como la cuenta total de hemocitos (CTH y el contenido de proteínas (CP en camarones (Litopenaeus vannamei expuestos a diferentes dosis y cepas de la levadura Debaryomyces hansenii (DH5, DH6, LL1, y un inmunoestimulante comercial (LAM. Materiales y métodos. Las levaduras fueron cultivadas y suministradas diariamente en concentraciones diferentes (104 – 106 UFC/mL directamente a los tanques de cultivo de los camarones (8 ± 0.2 g mientras que LAM fue aplicado una vez a la semana (0.5 mg/L. Los organismos fueron mantenidos bajo condiciones de laboratorio (28°C, 35%, 80% de recambio diario de agua, dieta comercial para camarón ad libitum. Los tratamientos fueron distribuidos por duplicado y los resultados evaluados a los 15 días con un análisis de varianza y una prueba de Tukey. Resultados. Se registró un CTH significativo (p<0.05 en los tratamientos con DH6 y LL1 (106 UFC/mL comparada con el control, mientras que las cepas DH5 y DH6 revelaron un incremento significativo (p<0.05 de CP con la dosis de 104 UFC/mL. Los camarones tratados con LAM incrementaron significativamente (p<0.05 los valores de SOD y CAT. Conclusiones. Los resultados obtenidos demuestran que D. hansenii incrementa la respuesta antioxidante y CTH en camarones.

  14. Alternativas tecnológicas para el procesamiento del camarón blanco (Litopenaeus schmitti) cultivado en Cuba.

    OpenAIRE

    Flores Gutiérrez, E.R.

    2001-01-01

    El cultivo del camarón se ha presentado como una alternativa de producción de este crustáceo ante los altos costos de las faenas de pesca provocados por los altos precios del combustible y los bajos rendimientos de las capturas ante el agotamiento del recurso. En el presente trabajo se presentan varias tecnologías de procesamiento del camarón susceptibles de ser aplicadas para su comercialización, así como una alternativa de organización del proceso de manipulació...

  15. CARACTERIZACIÓN BOVINOMÉTRICA DE HEMBRAS CEBÚ Y CRUCES CON BLANCO OREJINEGRO, ROMOSINUANO Y ANGUS.

    OpenAIRE

    Juan Fernando Medina.

    2005-01-01

    Con el objetivo de caracterizar y determinar algunos factores que podrían ser de gran utilidad a la hora de tomar decisiones en una empresa ganadera, se consideraron mediciones cuantitativas como la alzada y amplitud de isquiones, y cualitativas como la condición corporal, ángulo de anca, aplomos, ubre y pezones. Se realizaron análisis de varianza para las variables en cada estado fisiológico (hembras de levante, vacas paridas, vacas paridas preñadas, vacas horras y vacas horras preñadas) y s...

  16. Where Does It Take You? Using the Poetry of Paz, Pacheco, Guitierrez, Blanco, and Deltoro as Models.

    Science.gov (United States)

    Nye, Naomi Shihab

    1997-01-01

    Notes the importance of noticing details and the precious, weird little details of neighborhoods. Uses poetry by Latin American poets to teach children and adults how to write their own poetry. Starts with basic techniques--talking, reading, discussing, and notetaking. (PA)

  17. On the usefulness of finding charts Or the runaway carbon stars of the Blanco & McCarthy field 37

    CERN Document Server

    Loup, C; Egret, D; Cioni, M R; Genova, F

    2003-01-01

    We have been recently faced with the problem of cross--identifying stars recorded in historical catalogues with those extracted from recent fully digitized surveys (such as DENIS and 2MASS). Positions mentioned in the old catalogues are frequently of poor precision, but are generally accompanied by finding charts where the interesting objects are flagged. Those finding charts are sometimes our only link with the accumulated knowledge of past literature. While checking the identification of some of these objects in several catalogues, we had the surprise to discover a number of discrepancies in recent works.The main reason for these discrepancies was generally the blind application of the smallest difference in position as the criterion to identify sources from one historical catalogue to those in more recent surveys. In this paper we give examples of such misidentifications, and show how we were able to find and correct them.We present modern procedures to discover and solve cross--identification problems, su...

  18. Pemanfaatan Limbah Kulit Jeruk Keprok (Citrus Reticulata Blanco syn) Sebagai Bahan Penguat Nanokertas Selulosa Bakteri Dari Air Kelapa

    OpenAIRE

    Ichwani, Reisya

    2014-01-01

    Bacterial cellulose (BC) nanofibres combined with cellulose of orange peels organic waste (OP) have been used for the providing nanopaper. BC pellicle that has been crushed by home blender and combined with cellulose of orange peels in various concentration. The content of cellulose in bacterial cellulose pellicle is 4,53 % in nanosized and the cellulose content in the orange peels is 5,63 % in microsized. After preparing in sheet, the characterization has been done including m...

  19. Los Wichís Matacos, una cultura aborigen del Gran Chaco argentino: fotografías en blanco y negro de una cultura condenada

    OpenAIRE

    Juárez, Marta

    2006-01-01

    Este artículo describe determinadas circunstancias históricas y ofrece datos etnográficos sobre el pueblo indígena Wichí o Mataco, que habita en la región de Salta, Argentina. Incorpora fotografías antiguas de sus gentes. This paper describes some historical background and ethnographical data of the Wichi or Mataco people, who live in the Salta region in Argentina. Antique pictures are also included.

  20. CARACTERÍSTICAS DO FRUTO DA VARIEDADE SPAN AMERICANA (Citrus reticulata Blanco: UMA TANGERINA DO TIPO 'PONCÃ' DE MATURAÇÃO PRECOCE

    Directory of Open Access Journals (Sweden)

    PIO ROSE MARY

    2001-01-01

    Full Text Available A tangerina-'Poncã' é bastante apreciada pelo consumidor brasileiro. No Estado de São Paulo, a maturação de seus frutos ocorre nos meses de abril a agosto. Com o mercado ávido por frutas de mesa e agravado pelo problema da ocorrência da clorose variegada dos citros (CVC, que afeta principalmente as variedades de laranjas-doces, tem havido um aumento considerável no plantio dessa variedade. Dessa forma, um excesso de produção, num mesmo período, faz com que os preços caiam, desestimulando assim os produtores. O Centro de Citricultura Sylvio Moreira (CCSM vem buscando outras alternativas no sentido de obter, durante o ano todo, esse tipo de tangerina. Assim sendo, foram realizados estudos de caracterização de frutos, em diversas épocas do ano, com o acompanhamento dos níveis de maturação, envolvendo acessos do Banco de Germoplasma do CCSM. Dentre as variedades estudadas, quanto à precocidade e qualidade dos frutos, destacou-se a Span Americana. A tangerina-'Poncã' tem seu período de maturação para as condições edafoclimáticas do CCSM, nos meses de maio e junho. Já a variedade Span Americana, que apresenta frutos similares à 'Poncã' tradicional, tem maturação bastante precoce, podendo ser iniciada a sua colheita no mês de março.

  1. Isolation, screening, characterization, and selection of superior rhizobacterial strains as bioinoculants for seedling emergence and growth promotion of Mandarin orange (Citrus reticulata Blanco).

    Science.gov (United States)

    Thokchom, Elizabeth; Kalita, Mohan Chandra; Talukdar, Narayan Chandra

    2014-02-01

    Mandarin orange (MO) is an important fruit crop of tropical and subtropical regions of the world. A total of 217 morphologically distinct rhizobacteria from MO orchards in 3 states of northeastern India were isolated and analyzed for 4 plant-growth-promoting (PGP) attributes: nitrogen fixation, production of indole acetic acid like substances, solubilization of phosphate, and ability to antagonize pathogenic fungi. Isolates were ranked based on in-vitro-assayed PGP attributes, and 10 superior isolates were selected to test their effect on seedling emergence and seedling growth in a completely randomized pot experiment. These 10 isolates increased seedling emergence over a noninoculated control within 45 days after sowing. Five isolates, namely RCE1, RCE2, RCE3, RCE5, and RCE7, significantly increased shoot length, shoot dry biomass, and root dry biomass of 120-day-old seedlings over the noninoculated control. The beneficial effects of 4 selected strains, namely Enterobacter hormaechei RCE-1, Enterobacter asburiae RCE-2, Enterobacter ludwigii RCE-5, and Klebsiella pneumoniae RCE-7, on growth of the seedlings were visible up to 1 year after their transfer to 8 kg capacity pots. These strains were superior both in terms of in-vitro-assayed PGP attributes and of their beneficial effect in low phosphorus soil and, thus, may be promising bioinoculants for promoting early emergence and growth of MO seedlings. PMID:24498985

  2. ELABORAÇÃO DE LICOR DE CASCA DE TANGERINA (Citrus reticulata Blanco, VARIEDADE PONKAN, COM DIFERENTES CONCENTRAÇÕES DE CASCA E TEMPOS DE PROCESSAMENTO

    Directory of Open Access Journals (Sweden)

    Elizabeth Luiza de ALMEIDA

    2012-04-01

    Full Text Available No presente trabalho objetivou-se elaborar e avaliar as características físico-químicas e aceitabilidade de licores de casca de tangerina, variedade Ponkan, com graduação alcoólica de 18ºGL e teor de açúcar de 350g.L-1, produzidos com diferentes concentrações de casca e tempos de processamento. Os tratamentos testados foram: 250g de casca e 7 dias de processamento, 250g de casca e 14 dias de processamento, 500g de casca e 7 dias de processamento e 500g de casca e 14 dias de processamento. Nos licores as análises realizadas foram: teor alcoólico, densidade, pH, sólidos solúveis, acidez titulável e teste de aceitabilidade. Na análise estatística o delineamento experimental utilizado foi o inteiramente casualizado (DIC, em esquema fatorial 2 x 2 com o uso do teste de Tukey na comparação das mé- dias dos tratamentos a 1 e 5% de probabilidade. Para o teste de aceitabilidade também foi aplicado o teste de Tukey a 1 e 5% de probabilidade. Nas análises foram utilizadas 6 repetições. Para o teste de aceitabilidade foram utilizados 100 provadores não treinados. O licor correspondente ao tratamento com 500g de casca e 14 dias de processamento, foi o que apresentou melhor comportamento quanto às suas características físico-químicas avaliadas. Todos os licores tiveram boa aceitação sensorial, obtendo médias acima de 7 (gostei regularmente. O licor preparado com a maior concentração de casca e maior tempo de processamento (500g de casca e 14 dias de processamento foi um dos mais aceitos quanto à cor, aroma e textura, embora o mesmo não tenha ocorrido com o quesito sabor.

  3. Vías de reparación del ADN: nuevos blancos en la terapia contra el cáncer

    OpenAIRE

    José Díaz Chávez; Guadalupe Domínguez Gómez

    2010-01-01

    La quimiorresistencia y radiorresistencia de las células cancerosas son los principales obstáculos en el tratamiento y manejo del cáncer. Un importante mecanismo que permite el desarrollo de resistencia a la terapia es que las células cancerosas reconocen el daño al ADN inducido por agentes quimioterapéuticos y por la radiación ionizante y lo reparan mediante la activación de diversas vías de reparación de ADN. Por tanto, inhibidores de vías específicas de reparación del ADN podrían aumentar ...

  4. 柑橘种果皮挥发油成分化学型分析%Analyses on the Chemotype of Peel Oils from Citrus Reticulata Blanco

    Institute of Scientific and Technical Information of China (English)

    王坚

    2012-01-01

    现有的研究成果表明不同柑橘种果皮挥发油成分属于 3 类化学型:Limonene(柠檬烯)、Limonene/γ-Terpinene(柠檬烯/γ-萜品烯)与 Limonene/Linalool(柠檬烯/芳樟醇)型.首次提出Limonene/Linalool 化学型,目前只有大红袍红橘1个变种属于这一型.

  5. Fenotipificación de la resistencia a la infección por el virus de la fiebre aftosa en ganado blanco orejinegro (BON

    Directory of Open Access Journals (Sweden)

    Jorge Eliécer Ossa Londoño

    2000-02-01

    Full Text Available

    El virus de la fiebre aftosa (VFA es un picornavirus del género aftovirus que afecta artiodáctilos provocándoles fiebre y vesículas en mucosas de cavidad oral, piel de pezones y banda coronaria de los cascos. En Colombia circulan los serotipos A y O y la infección es de reporte obligatorio. El ganado criollo BON, que actualmente alcanza una población de 2866 ejemplares, según campesinos y ganaderos, es relativamente resistente a esta infección. El objetivo de esta investigación fue determinar la resistencia in vitro del ganado BON al VFA, serotipos A24-Cruzeiro y O1-Campus, para contribuir a la caracterización inmunogenética de esta raza criolla colombiana y aportar elementos para su conservación y propagación.

    Se realizó un estudio experimental, para éste se tomaron biopsias de oreja de 60 ejemplares BON, de las que se obtuvieron cultivos primarios de fibroblastos de piel, en los que se evalúo la magnitud de replicación de ambos virus por un ensayo de dilución limitante y se determinó la dosis infectante 50% del cultivo celular (DICC50%. Una vez halladas las DICC50% para los cultivos primarios de fibroblastos de BON y para el control de células susceptibles BHK-21, se determinó el índice de infecciosidad (I.I y se clasificaron los fenotipos in vitro en tres grupos:

     

    Se encontró que existe polimorfismo fenotípico en la resistencia del ganado BON al VFA in-vitro; el 93.2% de los animales resultaron resistentes o medianamente resistentes al serotipo A24- Cruzeiro, mientras que solo el 56% lo es para el serotipo O1-campus. Las diferencias entre grupos pueden ser debidas a mecanismos mediados por interferón, lo cual sería válido para ambos serotipos, o a la ausencia relativa de la integrina aV - b3 que es el único receptor para el serotipo A. En el caso del virus O, la mayor susceptibilidad encontrada podría explicarse por el hecho de que este serotipo in vitro puede utilizar además de la integrina, el heparán sulfato, para la penetración a la célula. Con el fin de determinar si la resistencia es debida a la producción de interferón tipo I o a la ausencia relativa de la integrina aV - b3 , actualmente se están cuantificando la cantidad de interferón inducida ante la infección con VFA y la cantidad de integrina expresada en cultivos primarios de fibroblastos derivados de animales resistentes y susceptibles.

  6. Más allá del blanco y negro. Estudio histórico de fotografías coloreadas y su conservación

    Directory of Open Access Journals (Sweden)

    Enara Artetxe Sánchez

    2010-08-01

    Full Text Available La gran mayoría de las colecciones fotográficas antiguas poseen copias coloreadas a mano. El estudio de dichas imágenes y su intervención han sido objeto de estudio en dos proyectos de investigación avalados por el MEC y la UPV/EHU que han sido llevados a cabo por investigadores y profesores de la Universidad del País Vasco. Dichos proyectos han evaluado el efecto de los tratamientos más comunes de conservación-restauración de papel tanto sobre los procedimientos pictóricos seleccionados (acuarelas y óleos como sobre los componentes de la imagen fotográfica en papeles salados, albúminas y copias a la gelatina de revelado químico. Además, este trabajo ha dado como resultado una tesis doctoral presentada en el Departamento de Pintura de la UPV/EHU en el 2009.

  7. Análisis proteomico de la subunidad LSL1 de la lectina del Camaron Blanco del Golfo de Mexico Litopenaeus setiferus

    Directory of Open Access Journals (Sweden)

    Alpuche-Osorno, Ja,b.Pereyra, Ma.,Vazquez, Lc., Agundis, Ca., Rosas, Cd., Zenteno, Ea. a

    2005-02-01

    Full Text Available Se purificó por filtración en Sephacryl S-300 una subunidad de 84 kDa de la lectina de L. setiferus (LsL1, específica para azucares N-acetilados. Por dicroísmo circular se encontró que LsL1 contiene en su estructura secundaria 49% de hojas plegadas beta y 6.9% de alfa hélices. La secuencia de aminoácidos de la subunidad LsL1 se determinó por MALDI-TOF a partir de péptidos trípticos. Comparando los valores con la base de datos NCBInr (Swiss-Prot 2003/08/06, esta subunidad mostró 23% de similitud con el precursor hemocianina, proteína responsable de la respiración en crustáceos, que a su vez ha sido relacionada con la generación de péptidos de defensa; al alinear el péptido con otras proteínas involucradas con la defensa en crustáceos muestran una similitud del 80% con hemocianina, y profenoloxidasa, por lo que podemos asumir que las lectinas de esta especie participan en procesos de defensa. By filtration in a column of Sephacryll S-300 was purified a subunit of 84 kDa of the lectina of L. setiferus (LsL1, specific for N-acetilated sugars. By Circular dicroism we found that LsL1 in its secondary structure contains 49% of sheet beta and 6.9% of alfa helix. The sequence of amino acids of the subunit LsL1 were assayed from triptic peptides by MALDI-TOF and they had a rank of mass from 768.36 to 3379.76 m/z. Comparing these data with relative values obtained of the database NCBInr (Swiss-Prot 2003/08/06, this protein showed 23% of homology with a precursor of the responsible protein for the respiration in crustaceans, the one that besides has related to the generation of defense peptides. Alignments with other proteins related to mechanisms of defense in crustaceans indicate a homology of the 80% with similar proteins to the hemocyanin, and the profenoloxidase. We can assume that functionally lectinas of this species participate actively in processes of defense.

  8. Transferencias condicionadas, regímenes de bienestar e igualdad de género: ¿blancos, negros o grises?

    NARCIS (Netherlands)

    K. Voorend (Koen); J.M. Franzoni

    2008-01-01

    textabstractLas transferencias monetarias condicionadas, programas “estrella” de la nueva política latinoamericana, ¿favorecen o atentan contra la igualdad de género? ¿Qué tanto los programas de transferencias condicionadas promueven mayores grados de igualdad como lo argumentan sus defensores? ¿Es

  9. Volatile profiles in cold-pressed peel oil from Korean and Japanese Shiranui (Citrus unshiu Marcov. x C. sinensis Osbeck x C. reticulata Blanco).

    Science.gov (United States)

    Song, Hee Sun; Lan Phi, Nguyen Thi; Park, Yeon-Hee; Sawamura, Masayoshi

    2006-03-01

    A comparison of the volatile profiles between Korean and Japanese Shiranui cold-pressed peel oil was performed by GC and GC-MS. Limonene was the most abundant in the Japanese (91.8%) and Korean (86.4%) oil. Alcohols accounted for 1.8% in the Korean oil, and 0.2% in the Japanese oil, in which the respective linalool levels were 1.2% and 0.1%. The level of aldehydes was also higher in the Korean oil (1.6%) than in the Japanese oil (0.7%). PMID:16556996

  10. Fruit splitting occurrence of Shogun mandarin (Citrus reticulata Blanco cv. Shogun in southern Thailand and alleviation by calcium and boron sprays

    Directory of Open Access Journals (Sweden)

    Chiarawipa, R.

    2005-07-01

    Full Text Available Fruit splitting is a serious problem of Shogun mandarin in southern Thailand. To alleviate this impact, the applications of calcium and boron by spraying were investigated. An experiment was established in a farmer orchard (at Amphur Sadao, Songkhla province where four-year plants were grown at 6 m x 6 m spacing. The experiment was arranged as a completely randomized design, and 16 trees were used. There were 4 treatments (1. control or water spray, 2. 1% CaCl2 spray or C treatment, 3. 0.8% boric acid spray or B treatment and 4. 1% CaCl2+ 0.8% boric acid spray or C+B treatment with 4 replicates. The application was started at 4 months after fruit-setting, the sprays were done at 1 month intervals. It was found that the occurrence of fruit-splitting started at 3 months after fruit-setting, and there were 4 causes of fruit-splitting: 1. scab (28.33%, 2. sun scald (11.11%, 3. sun burn (7.78% and 4. no primary peel damage (52.78%. Various patterns of fruit splitting were found: vertical, horizontal, oblique and informal shape. The treatments of calcium and boron sprays did not affect on fruit growth or fruit size compared with the control, but they significantly enhanced fruit firmness, total soluble solid (TSS and total acidity (TA. The treatments of C, B, and C + B can reduce the percentages of fruit splitting to 5.56, 8.89 and 6.67%, respectively, and they were significantly different from that of the control (52.22%. It is suggested that calcium and boron sprays can alleviate fruit splitting in Shogun mandarin, and fruit quality is also enhanced.

  11. Evaluación de variedades de maíz blanco en la región Brunca de Costa Rica: experimentación campesina

    Directory of Open Access Journals (Sweden)

    Sayra Mungu\\u00EDa

    2002-01-01

    Full Text Available En dos comunidades de la región Brunca se evaluaron durante la época de "veranera" (set 1999 - feb 2000, diversos materiales genéticos de maíz incluyendo variedades locales y mejoradas. Esta actividad fue realizada por los Comités de Experimentaci ón de las Asociaciones de Productores de Veracruz de Pejibaye (seis productores y de Concepción de Pilas (cuatro productores, con el apoyo de la Escuela de Ciencias Agrarias de la Universidad Nacional, el Instituto para el Desarrollo y la Acción Social, y la colaboración del Ministerio de Agricultura y Ganadería. En Veracruz, se evaluaron el hí- brido Cargill 343, la variedad mejorada Diamantes 8843 y tres variedades locales denominadas Godo, Mena y Elizondo; las parcelas fueron establecidas por los agricultores basándose en un peso de semilla uniforme (0,5 kg. No hubo diferencias significativas para la producción de grano, entre los materiales evaluados.

  12. Tense and Aspect in Mandarin Chinese and Spanish: Contrasts Manifested in the Mandarin Translation of Javier Marias' Corazón Tan Blanco

    Science.gov (United States)

    Hung, Yu-Ju

    2016-01-01

    Mandarin Chinese and Spanish are both considered aspect languages for the simple reason that they both mark grammatical aspect morphologically: the former attaches a particle expressing only aspectual meaning to the root of a verb, while the latter attaches a suffix expressing both aspectual and tense meaning to the root of a verb. Since tense…

  13. Model of two temperatures of the laser evaporation of solid targets; Modelo de dos temperaturas de la evaporacion laser de blancos solidos

    Energy Technology Data Exchange (ETDEWEB)

    Tolentino E, P. [Facultad de Ciencias Fisico Matematicas, BUAP, Puebla (Mexico); Gutierrez T, C.; Camps C, E. [ININ, 52750 La Marquesa, Estado de Mexico (Mexico)

    2007-07-01

    The energy transmission in the evaporation process of a solid target by a laser pulse by means of the model of two temperatures which consists on two equations of heat conduction coupled by means of an electron-phonon coupling factor that means the energy transfer rate between the electrons and the net is described. This electron-phonon coupling factor is calculated for the particular case of the graphite, the obtaining of the analytic solutions in a space dimension of the system of non linear partial differential equations is shown considering two forms of the laser pulse (gaussian and delta function) and the electron temperature distributions of temperature and of the net are analyzed. (Author)

  14. Caracterización bovinométrica de hembras cebú y cruces con blanco orejinegro, romosinuano y angus.

    Directory of Open Access Journals (Sweden)

    Juan Fernando Medina.

    2005-05-01

    Full Text Available Con el objetivo de caracterizar y determinar algunos factores que podrían ser de gran utilidad a la hora detomar decisiones en una empresa ganadera, se consideraron mediciones cuantitativas como la alzada yamplitud de isquiones, y cualitativas como la condición corporal, ángulo de anca, aplomos, ubre y pezones.Se realizaron análisis de varianza para las variables en cada estado fisiológico (hembras de levante, vacasparidas, vacas paridas preñadas, vacas horras y vacas horras preñadas y se consideraron los efectos de laedad del animal (regresión lineal y cuadrática y grupo genético del animal. Las hembras jóvenes (9 a 12meses tuvieron un peso promedio de 172.0 Kg., y las vacas adultas un promedio de peso entre 415 a 445Kg. En el peso, el efecto de grupo genético, fue altamente significativo en las vacas horras, donde losgrupos genéticos con mayor peso fueron el Cebú y cruce BON x Cebú. Para los otros estados fisiológicosno se encontraron diferencias estadísticas. Para las hembras de levante, las BxC/CxB (n= 100 presentaronmenor condición corporal frente a los CCO/BRH (n= 28, RxC/CxR (n= 50 y 3/4Cx1/4A (n= 15. En lasvacas horras el grupo genético CCO/BRH (n= 328 fue el que presentó la mejor condición corporal. Lasvacas horras preñadas mostraron diferencias entre los grupos genéticos CCO/BRH (n= 273 y AxC/CxA(n= 332. En las vacas paridas, el grupo genético 3/4Cx1/4A (n= 91 obtuvo un promedio superior a losotros grupos analizados. El grupo genético 3/4Cx1/4A presenta los mejores registros en cuanto a cualidadesfísicas en las vacas adultas, lo que confirma su potencial productivo para las zonas groecológicas similaresa las del presente estudio.

  15. Evaluación in vivo del efecto cicatrizante de un gel a base de quitosano obtenido de exoesqueleto de camarón blanco litopenaeus vannamei

    OpenAIRE

    Heimy Franceline Martínez Sánchez; Amada Yerén Escobedo Lozano; Evaristo Méndez-Gómez; Alfredo Emmanuel Vázquez; Manuel de Jesús Sol Hernández; Anahí Elizabeth Osuna Lizárraga

    2014-01-01

    Healing effect of a chitosan-based gel obtained from the exoskeleton of white shrimp Litopenaeus vannamei and its evaluation in vivoTítulo corto: Evaluación del quitosano como cicatrizanteResumen:  En México alrededor del 62 % de la población sufre de accidentes causantes de alteraciones en la piel como quemaduras, heridas y diabetes principalmente. Para atender esta problemática, se propone el uso de un gel de quitosano, obtenido del exoesqueleto de camarón ya que presenta actividad antimicr...

  16. Obtention of differential sections in nuclear reactions using a thick target; Obtencion de secciones diferenciales en reacciones nucleares usando un blanco grueso

    Energy Technology Data Exchange (ETDEWEB)

    Chavez R, R

    2000-07-01

    The nuclear reaction analysis (NRA) technique is used mainly for detecting the presence and concentration of light elements of great importance such as: carbon, nitrogen and oxygen. This work has the objective to obtain the differential sections of {sup 16} O and {sup 14} N starting from the irradiation with deuterons of TiSrO{sub 3} samples, of AIN and AIN{sub 2} at energies of 2000 KeV and 1800 KeV respectively. The present work have four chapters; chapter 1 is focused to the physical aspects which takes part in the NRA technique. The technical requirements as well as the necessary equipment for developing the techniques are described in the chapter 2. In chapter 3 it is described the algorithm developed for to obtain the differential sections starting from experimental data, and finally, in chapter 4 are given the results and conclusions. (Author)

  17. Respuesta inmune y expresión de genes en el camarón blanco (Litopenaeus vannamei inducida por inmunoestimulantes microbianos

    Directory of Open Access Journals (Sweden)

    Antonio Luna-González

    2013-11-01

    Full Text Available Se realizó un bioensayo de 26 días para evaluar el efecto inmunoestimulante de bacterias ácido lácticas y levaduras (MI, adicionadas en el alimento, en Litopenaeus vannamei. Los tratamientos del bioensayo se realizaron por triplicado: I dieta control (Camaronina®; II MI en alimento, diario; III MI en alimento, cada tres días y; IV MI en alimento, cada seis días. Los camarones sólo eran libres de WSSV. Para el estudio del sistema inmune se hizo un conteo total de hemocitos, se determinó bioquímicamente la concentración de anión superóxido, y la actividad de la fenoloxidasa. También se estudió la expresión semicuantitativa de seis genes del sistema inmune, utilizando la técnica de RT-PCR. No hubo aumento significativo en el crecimiento y la supervivencia, el conteo total de hemocitos, la concentración de la proteína total en plasma y hemocitos, y la concentración del anión superóxido. La actividad de la fenoloxidasa en plasma en el tratamiento IV fue significativamente mayor que en los tratamientos I, II y III. La fenoloxidasa del SLH (proFO en el tratamiento IV fue significativamente mayor que en los tratamientos I y III. La MI provocó una sobreexpresión significativa de los genes que codifican para la profenoloxidasa (tratamiento IV, lisozima (tratamiento III y transglutaminasa (tratamiento II, con respecto a los animales no tratados (control. La mezcla de inmunoestimulantes microbianos puede aumentar la resistencia de L. vannamei contra patógenos en los cultivos.

  18. Comparación productiva de vacas holstein y F1 blanco orejinero (BON x holstein 1. producción y calidad de la leche.

    OpenAIRE

    Quijano Bernal Jorge H.; Montoya Serna Camilo

    2000-01-01

    Se estimaron los porcentajes de heterosis para la producción de leche, duración de la lactancia y calidad de la leche ( porcentaje de grasa y proteína), en vacas Holstein y F1 (BON x HOLSTEIN) del Centro Paysandú, propiedad de la Universidad Nacional de Colombia, situado en el corregimiento Santa Elena, municipio de Medellín, a 2600 m.s.n.m., con temperatura promedio de 12,5C, correspondiendo a la formación bosque muy húmedo montano bajo (bmh-MB). La producción de leche fue afectada si...

  19. Pre-Harvest Dropped Kinnow (Citrus reticulata Blanco) Waste Management through the Extraction of Naringin and Pectin from their Peels using Indigenous Resin

    Science.gov (United States)

    Laxmi Deepak Bhatlu, M.; Katiyar, Prashant; Singh, Satya Vir; Verma, Ashok Kumar

    2016-09-01

    About 10-20 % kinnow fruits are dropped in preharvest stage which are waste and are problem to farmer as these create nuisance by rotting and insect rearing ground. The peels of these dropped fruits as well as peels from kinnow processing may be good source of naringin and pectin. Naringin is used in pharmaseutics while pectin is used in food industry. For recovery of naringin and pectn, peels of preharvest dropped kinnow fruits were boiled in water. The extract was passed through macroporus polymeric adsorbent resin Indion PA 800, naringin was adsorbed on it. The adsorbed naringin was desorbed with ethanol. This solution was passed through membrane filter and filtrate was evaporated to obtain naringin. The extract remaining after adsorption of naringin was used to recover pectin using acid extraction method. The recovery of naringin and pectin was about 52 and 58 % respectively. The naringin finally obtained had 91-93 % purity.

  20. Plant growth, Leaf Nutrient status, fruit yield and quality of Nagpur mandarin (Citrus reticulate Blanco as influenced by potassium (K fertigation with four potash fertilizer sources

    Directory of Open Access Journals (Sweden)

    Parameshwar Sidramappa Shirgure

    2013-04-01

    Full Text Available To investigate the effect of different potassium (K fertilizers applied through fertigation system during three different seasons on yield and quality behaviors of 14-16 years Nagpur mandarin an experiment was conducted at National Research Centre for Citrus, Nagpur during 2009-2012. The Nagpur mandarin plants requires potassium which, when applied in different amounts during the flower bud initiation to before fruit maturity can affect the yield and quality of fruit as well. The treatments in experiment consisted of; T1 - fertigation with potassium chloride [KCL], T2- fertigation with potassium nitrate [KNO3], T3- fertigation with potassium sulphate [K2SO4] and T4- fertigation with mono potassium phosphate [KH2PO4] @ 150 g K2O/plant. The recommended fertigation dose was 500:150:150 (N:P:K and given through these treatments along with various fertilizers combination of urea of phosphate, urea, and P2O5 acid. Nitrogen elemnet was given from October to January month and N, P and K all were given from February to June month. Each fertigation treatment was given at 15 days interval and fruit yield and quality were measured at harvest. Results showed the highest response of the fruit yield (31.13 t/ha with treatment mono potassium phosphate followed by in fertigation with potassium nitrate (29.4 t/ha. The total soluble solids was highest (10.49 0Brix in K fertigation with mono potassium phosphate followed by fertigation with potassium sulphate (10.48 0Brix. Highest juice content (38.76 % and low acidity (0.77 % was found in K fertigation with mono potassium phosphate. The highest TSS to acidity ratio (sweetness indicator was observed in Mono potassium Phosphate (13.6 followed by Potassium sulphate (13.1.

  1. Papel de la proteína desacoplante UCP2 en el estrés oxidativo provocado por la metformina en el adipocito blanco

    OpenAIRE

    Anedda, Andrea

    2010-01-01

    A pesar de que la comprensión de la función biológica de la UCP2 en la célula ha constituido un amplio campo de estudio desde su descubrimiento, su papel en la célula no ha sido demostrado aún con claridad. En estos últimos años se ha puesto de manifiesto que la UCP2 estaría implicada en limitar la producción de especies reactivas del oxígeno y, por tanto, podría proteger frente al estrés oxidativo. En este trabajo de tesis se ha intentado determinar el papel de la UCP2 en el metabolismo ener...

  2. Early Performance of Duong Mandarin (Citrus reticulata Blanco on Three Rootstock under Acid Sulfate Soil Fields at Mekong Delta of Vietnam

    Directory of Open Access Journals (Sweden)

    Khoe Thi Le

    2016-01-01

    Full Text Available Abstract About 1.6 billion hectare area of acid sulfate soils is at Mekong Delta of Vietnam, and Duong mandarin fruits are valued for the fresh market due to the easy peeling, attractive flavor, and health and nutritional properties; thereby, the investigation on early performance of Duong mandarin on three rootstock under acid sulfate soil fields (pH below 4 at Mekong Delta of Vietnam was undertaken from 2009 to 2012 for determination of the most promising scion stock combination of Duong mandarin, which introduced to growers for expanding citrus production to increase in income of farmers, and helping to use the sustainable and efficient land resource at acid sulfate soil region of Mekong Delta. Primary results showed that Duong mandarin grafted on Mat orange, Tau lemon and Carrizo citrange were significant differenence in vegetative parameters, fruit yield and quality. It proved that Duong mandarin trees grafted on Tau lemon were better growth and development on acid sulfate soil fields with below 4 pH in soil and water suspension of 1:2.5 ratio as compared to those grafted on Mat orange and Carrizo citrange rootstocks; whereby, that induced trees with 171.48 cm height, 6.65 m3 canopy volume and 51.84 mm trunk diameter, 1.08 scion/ stock ratio in third year after growing. Moreover, Duong mandarin trees grafted on Tau lemon were with spreading growth performance. In regarding to fruit yield and quality, Duong mandarin trees grafted on Tau lemon produced highest fruit yield of 9.21 kg per tree per year in third year after planting, and fruit with 115.30g weight, 8.85 brix juice, thinner and somewhat easy peel rind. 

  3. Genotipicación de la resistencia natural del ganado blanco orejinegro “BON” a la Salmonella dublin SL 2260

    Directory of Open Access Journals (Sweden)

    Jorge Eliécer Ossa Londoño

    2000-02-01

    Full Text Available Uno de los factores que controla la resistencia a microorganismos intracelulares como Salmonella y Brucella, es el producto del gen Nramp (proteína del macrófago asociada a resistencia natural; esta proteína, en la fase temprana de la infección, controla la capacidad de replicación de estas bacterias en los macrófagos. Recientemente se identificó asociación entre un alelo de 175 pb de un microsatélite (STR, ligado a Nramp, con la resistencia a microorganismos intracelulares en bovinos; adicionalmente, se han identificado otros tres alelos (177, 179 y 181 pb asociados con susceptibilidad. En la especie bovina, la Salmonella Dublín sirve como modelo para estudiar la resistencia natural a otras bacterias intracelulares como la Brucella abortus, ya que se ha demostrado que macrófagos derivados de bovinos resistentes controlan eficientemente el crecimiento de ambas bacterias. En Colombia, se ha propuesto que el ganado criollo “BON” presenta una marcada resistencia a enfermedades infecciosas, entre ellas la brucellosis. El objetivo de esta investigación fue determinar el genotipo y el fenotipo de la resistencia del ganado BON a la Salmonella Dublín SL 2260, para contribuir a la caracterización inmunogenética de la resistencia natural de este ganado a las infecciones microbianas. En este trabajo sé han analizado 80 bovinos de la raza “BON”, 18 holstein y 4 cebú: se extrajo ADN a partir de sangre periférica, se amplificó el STR ligado al Nramp, a través de la técnica de reacción en cadena de la polimerasa (PCR; el producto fue sometido a un análisis de polimorfismos conformacionales de cadena sencilla (SSCP, utilizando un gel de polyacrilamida al 6% en condiciones no reductoras. De acuerdo a la movilidad electroforética de los amplicones, y comparándola con un patrón ya definido de resistencia, se han tipificado los diferentes animales. De los 80 animales “BON”, 79 (98.75% fueron homocigóticos para el alelo de resistencia (R y solo un animal resulto ser heterocigótico; además, todos los animales de la raza holstein analizados portan el alelo de resistencia. En contraste todos los bovinos cebú presentaron alelos diferentes al alelo de resistencia ya reportado. En muestras que representen las poblaciones R y S se determinará el fenotipo, realizando un ensayo bactericida in vitro, para luego buscar asociación entre genotipos y fenotipos; esta asociación ofrece la posibilidad de seleccionar y hacer cruces con los animales naturalmente resistentes, para contribuir al desarrollo de nuevas estrategias en el control de estos patógenos, y en la caracterización y preservación del ganado criollo colombiano.

  4. Tissue Culture and Regeneration of Citrus Reticulata Blanco var.Kinokuni(Takana)H.H.Hu%南丰蜜橘组织培养及植株再生

    Institute of Scientific and Technical Information of China (English)

    张杨军; 涂艺声; 刘洁; 张志强

    2010-01-01

    以南丰蜜橘种子无菌苗的子叶、上胚轴、茎端、下胚轴为材料,在不同激素配比的MS基本培养基上进行外植体筛选和诱导不定芽分化、继代及生根培养,确定了诱导植株再生的最佳外植体和最适条件:(1)诱导不定芽分化最好外植体为上胚轴,不定芽分化率达90%;(2)继代培养中最适激素配比为MS+0.8 mg/L 6-BA+0.1 mg/L NAA十0.5 mg/L D-泛酸钙;(3)生根最适合培养基为MS/2+0.1 mg/L NAA.

  5. "¡Políticos de guante blanco!": La variedad de las transgresiones electorales en el Caribe colombiano a principios del siglo XX

    Directory of Open Access Journals (Sweden)

    Jaime Álvarez Llanos

    2010-01-01

    Full Text Available Este artículo explica algunas tendencias en los comportamientos electorales de los dirigentes, activistas y electores de la región Caribe colombiana a principios del siglo XX, a partir de 1905 y hasta 1930. Se trata de identificar, constatar y tipificar la frecuencia y la variedad de de prácticas que alteraban las leyes electorales y denotaban la ausencia de una cultura política democrática, incidiendo de manera determinante en los resultados de los procesos electorales. El escenario estudiado corresponde a localidades que conformaban la región y el período abordado atañe a las tres primeras décadas del siglo pasado. Además de las fuentes secundarias, se recurrió a fuentes primarias básicas, como la prensa local de la época y los telegramas sobre asuntos electorales que enviaban los actores políticos de la región al Ministerio de Gobierno y que reposan en el Archivo General de la Nación. (AGN.

  6. Indução do florescimento e crescimento de tangerineira 'Poncã' (Citrus reticulata Blanco em função da irrigação e da aplicação de paclobutrazol Flowering induction and vegetative development of 'Ponkan' mandarin (Citrus reticulata Blanco by irrigation and paclobutrazol application

    Directory of Open Access Journals (Sweden)

    Carlos Henrique dos Santos

    2004-04-01

    Full Text Available O experimento foi conduzido na Faculdade de Ciências Agronômicas - UNESP/Câmpus de Botucatu (SP, com o objetivo de avaliar o florescimento fora de época e o crescimento vegetativo da tangerineira 'Poncã'. Nesse contexto, adotou-se o delineamento estatístico em blocos casualizados, em parcelas subdivididas, com duas repetições, na instalação do ensaio. Os dois tratamentos de -0,03 e -0,05 MPa, como potenciais mínimos da água no solo, constituíram as parcelas e as quatro doses de paclobutrazol: 0; 4; 8 e 12 g por planta, nas subparcelas. No segundo ano de pesquisa, foram mantidas as mesmas parcelas e foram aplicadas nas plantas das subparcelas as doses de 0; 500; 1000 e 2000 mg l-1 de paclobutrazol, via foliar. Cada parcela foi constituída de 16 plantas, sendo oito destinadas à avaliação. Utilizou-se, em ambas as combinações, de um tratamento sem irrigação (-0,07 MPa e sem aplicação de paclobutrazol, como testemunha. Foram avaliados parâmetros, como a altura, diâmetro médio, volume e área de projeção da copa e condutância estomática para caracterizar a resposta das plantas aos tratamentos empregados. Concluiu-se que a aplicação do paclobutrazol e a variação do potencial da água no solo não proporcionaram a indução do florescimento fora de época das tangerineiras, e que os níveis de paclobutrazol influenciaram no desenvolvimento das plantas.The aim of this research was to study the flowering out of season in no induction conditions and the vegetative development of 'Ponkan' mandarin by irrigation and paclobutrazol application. The experiment was carried out at the Faculty of Agricultural Sciences - UNESP/Botucatu, State of São Paulo. The treatments followed a randomized blocks experimental design, being distributed in split-splots, and two replications. Each experimental unit was represented per 16 plants, being 8 destined for the evaluations. The treatments consisted of two soil water potential, -0,03 e -0,05 MPa that constituted the main experimental unit and the paclobutrazol levels that represented the sub units. In the second year of the experiment the units were maintained and it was applied the paclobutrazol: 0; 500; 1000 e 2000 mg L-1, by foliar application, in the plants of the sub units. Both treatments was compared with the treatments without irrigation (control plants: -0,07MPa and whitout paclobutrazol application plants. It was evaluated the following parameters: height, scion diameter medium, scion projection area, scion volume and stomatic condutance showing the plant's response to treatments. It was concluded that the paclobutrazol application and the irrigation did not influence the plant's flowering out of season and that the paclobutrazol levels influenced the growth of 'Ponkan' mandarin plants.

  7. Tratamento hidrotérmico na mortalidade de larvas de Ceratitis capitata (Weidmann, 1824 (Diptera: Tephritidae em tangerina (Citrus reticulata Blanco = Effect of hydrothermal treatment on the mortality of fruit fly (Ceratitis capitata Weidmann, 1824 (Diptera: Tephritidae larvae in tangerine fruit (Citrus reticulata Blanco

    Directory of Open Access Journals (Sweden)

    Edson Batista Lopes

    2008-12-01

    Full Text Available O objetivo dessa pesquisa foi avaliar a eficiência do tratamento hidrotérmico no controle de larvas de C. capitata em frutos de tangerina para fins quarentenários. Tangerinas da variedade ‘Dancy’ infestadas por larvas de Ceratitis capitata foram submetidas aostratamentos hidrotérmicos de 46±1°C e 50±1°C, em diferentes tempos de exposição. Para a temperatura de 46±1°C foram utilizados nove períodos de exposição: 0, 5, 10, 15, 20, 25, 30, 35 e 40 min. Na temperatura de 50±1°C, utilizaram-se sete tempos de exposição: 0, 5,10, 15, 20, 25 e 30 min., sendo o tempo (0 infestado e sem tratamento para as duas temperaturas. Cada tratamento foi composto de cinco repetições com dois frutos. Frutos maduros e semi-maduros infestados foram imersos em água quente, visando quantificar ototal de larvas vivas e mortas, sendo que, um grupo de frutos foi mantido sem imersão como controle. Os índices quarentenários, na temperatura de 46±1°C foram atingidos aos 32,0 e 35,3 min. para frutos maduros e semi-maduros, respectivamente. Na temperatura de50±1°C, os índices quarentenários foram atingidos aos 20,8 e 21,7 minutos para os frutos maduros e semi-maduros, respectivamente. A mortalidade das larvas de C. capitata foi crescente com o aumento da temperatura e o tempo de exposição.This research aimed to evaluate the efficiency of hydrothermaltreatment in the control of C. capitata larvae in tangerine fruit for quarantine safety. Tangerines fruits infested by larvae of Mediterranean fruit fly Ceratitis capitata were submitted to hydrothermal treatment at 46±1°C and 50±1°C for different exposure times. The fruits were selected in two maturity stages (ripe and semi-ripe and immersed in hot water. For temperature at 46±1°C, nine exposure times were used: 0, 5, 10, 15, 20, 25, 30, 35 and 40 minutes. The same procedure was used for temperature at 50±1°C, where the exposure times were: 0, 5, 10, 15, 20, 25 and 30 minutes. Infested fruits immersed in hot water were evaluated aiming to quantify the total of live and dead larvae, with one groupwas kept as control and not immersed. Quarantine safety using treatment with hot water at 46±1°C was reached at 32.0 and 35.3 minutes for ripe and semi-ripe fruits, respectively. At 50±1°C, quarantine safety was reached at 20.8 and 21.7 minutes for ripe and semi-ripe fruits, respectively. C. capitata mortality increased with the rise in temperature and exposure time.

  8. Spinitectus osorioi (Nematoda: Cystidicolidae) in the Mexican endemic fish Atherinella alvarezi (Atherinopsidae) from the Atlantic River drainage system in Chiapas, Southern Mexico

    OpenAIRE

    František Moravec; Guillermo Salgado-Maldonado; Juan M Caspeta-Mandujano

    2010-01-01

    Specimens of Spinitectus osorioi Choudhury and Pérez-Ponce de León, an intestinal nematode species previously considered to be specific to Chirostoma spp and endemic to some lakes in the Pacific drainage in Michoacán, were collected from the freshwater fish Atherinella alvarezi (Díaz-Pardo) (Atherinopsidae) of the Michol River near Palenque, Chiapas, Southern Mexico, which belongs to the Atlantic drainage system. Studies using light and scanning electron microscopy revealed some taxonomically...

  9. Trophic interactions among sympatric zooplanktivorous fish species in volume change conditions in a large, shallow, tropical lake

    OpenAIRE

    Rodrigo Moncayo-Estrada; Owen T. Lind; Carlos Escalera-Gallardo

    2011-01-01

    Significant reductions in the water volume of shallow lakes impose a restriction on species segregation promoting more interactions in the trophic relationships. The diets of three closely related zooplanktivorous silversides belonging to the Atherinopsidae species flock of lake Chapala , Mexico, were analyzed at two sites (Chirostoma jordani, C. labarcae, and C. consocium). Diets were described in critical shallow (August 2000) and volume recovery conditions (August 2005). Diets included mai...

  10. Obituaries and biographical notes

    NARCIS (Netherlands)

    NN,

    1989-01-01

    BECCARI, Odoardo (1843-1920) For a reprint of his Wanderings, see Bibliography. BLANCO, Francisco Manuel (1778/1780-1845) Another specimen labeled ‘Blanco’ by Blume has turned up at the Rijksherbarium. It may be regarded at least as the lectotype of Mocanera guiso Blanco, now Shorea guiso (Blanco) B

  11. 7 CFR 319.56-38 - Citrus from Chile.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 5 2010-01-01 2010-01-01 false Citrus from Chile. 319.56-38 Section 319.56-38... from Chile. Clementines (Citrus reticulata Blanco var. Clementine), mandarins (Citrus reticulata Blanco), and tangerines (Citrus reticulata Blanco) may be imported into the United States from Chile,...

  12. Evolución en la segmentación de la escritura : El uso de los espacios en blanco en textos de niños que inician su alfabetización

    OpenAIRE

    Alegría Ugarte, Marta Inés

    2014-01-01

    Desde una perspectiva psicogenética y psicolingüística se han realizado estudios que han permitido caracterizar los tipos de segmentaciones no convencionales que niños y adultos hacen y vislumbrar criterios que podrían guiar sus reflexiones sobre qué se mantiene unido y qué se separa en la escritura. Igualmente, en la historia y la lingüística se ha avanzado en la comprensión del proceso de construcción de la segmentación en palabras en la evolución histórica de la escritura alfabética y en l...

  13. Interação entre Formigas e Aleirodídeos (Sternorrhyncha, Aleyrodidae em Cultivo Orgânico de Tangerina cv. Poncã (Citrus reticulata Blanco

    Directory of Open Access Journals (Sweden)

    William Rodrigues

    2011-11-01

    Abstract. The whiteflies are tending by ants, which give protection and dispersion make the control of those suckers more difficult. The interaction ant-Sternorrhyncha occurs, mainly due to the production of a sugared material named honeydew. The aim of the study as realized sampling, diversity study, frequency, constancy and dominance of the ant’s whiteflies tending species in night and day period. The sampling were conducted from October 2002 to October 2003. The species of whiteflies detected were Aleurothrixus floccosus Maskell, Aleurotrachelus cruzi Cassino, Singhiella citrifolii (Morgan and Paraleyrodes bondari Peracchi. The study concluded that 12 species of ants were associated with A. floccossus, 4 species with A. cruzi and 3 species with P. bondari. Associations between ants and S. citrifolli where not observed. Among the species of ants associated with whiteflies, those ones associated with A. floccosus presented the major diversity (0.743 and the minor dominance (0.3194 and equitability J (0.6882. Brachymyrmex sp. was the most frequent species (31.94% and also the most constant. P. bondari showed a diversity of 0.477, the dominance of 0.3333 and the equitability J 1. To A. cruzi, the diversity was of 0.422, dominance of 0.6098 e equitability J of 0.7013. This species of whiteflies show a dominance of the species Crematogaster sp. 1, with the frequency of 60.98% although it was secondary. The close relationship between A. floccosus and 12 ants demonstrates a preference for the excrements (honeydew of the whiteflies, for the quantity as well as for the quality of the honeydew.

  14. "Carnauba Citrus"果蜡与"仙亮"果蜡对芦柑保鲜效应的比较%The Comparison of the Influence of "Carnauba Citrus" and "Xianliang" on the Storage of Ponkan (C. reticulata Blanco)

    Institute of Scientific and Technical Information of China (English)

    蓝炎阳

    2010-01-01

    研究了室温条件下澳大利亚果蜡"Carnauba Citrus"与美国"仙亮"果蜡对芦柑保鲜效应的差异,结果表明:2种果蜡均能减少芦柑维生素C和总酸的损耗,降低果实的失重率,但对总可溶性固形物和总糖的影响都不明显;除此之外,"Carnauba Citrus"比"仙亮"更能保持果实外观品质及风味,可有效延长保鲜时间.

  15. Influence of the size of the white volume and the time of acquisition in the segmentation of PET; Influencia del tamano del volumen blanco y del teimpo de adquisicion en la segmentacion de imagenes PET mediante valor umbral

    Energy Technology Data Exchange (ETDEWEB)

    Castro Tejero, P.; Rodriguez Alfonso, B.; Nunez Martin, L.; Mucientes Rasilla, J.; Huerga Cabrerizo, C.

    2013-07-01

    The objective of this study is to determine the influence of the resolution of the equipment on the threshold value required to determine the volume of a series of objects of known size stuffed with FDG. Secondly, are analyzed the repercussion that the time of acquisition on the threshold and obtained contours obtained. (Author)

  16. 广东标准与中国药典陈皮炮制品中橙皮苷含量的比较%Quality comparison of Citrus reticulata Blanco processed according to Guangdong standard and Chinese Pharmacopeia

    Institute of Scientific and Technical Information of China (English)

    王蕾; 郭丽冰

    2007-01-01

    目的 以橙皮苷为指标比较广东标准陈皮炮制品与药典标准炮制的陈皮的质量差异.方法 高效液相色谱法,色谱条件:Diamonsil C18(250 mm×4.6 mm,5 μm)为色谱柱,流动相为甲醇-水(体积比40:60),流速为1.0 mL/min,柱温为25 ℃,检测波长为284.1 nm,进样量为10 μL.结果 广东标准陈皮炮制品中的橙皮苷含量平均值为4.276%,药典标准炮制陈皮的橙皮苷含量平均值为4.257%,两种方法 差异无显著性意义.结论 广东标准陈皮炮制品的质量与药典标准炮制品水平持平.

  17. 纤维素酶提取湘西椪柑皮中总黄酮的工艺优化研究%Extraction of Total Flavonoids from the Peel of 'Ponkan' Mandarin (Citrus reticulata Blanco) by Optimized Cellulase Hydrolysis

    Institute of Scientific and Technical Information of China (English)

    欧阳辉; 余佶; 张永康

    2010-01-01

    采用响应面法对纤维素酶提取椪柑皮中总黄酮的工艺进行优化.结果表明,酶法提取椪柑皮总黄酮的最铑佳工艺条件为酶用量120U/mL、酶解温度52℃、酶解时间140min、酶解pH4.35,总黄酮得率可达1.85%.

  18. Longitud a la primera madurez, ciclo reproductivo y crecimiento del camarón blanco (Penaeus occidentalis, decapoda:penaeidae) en la parte interna del Golfo de Nicoya, Costa Rica.

    OpenAIRE

    José Palacios Villegas; Mauricio Vargas Barquero

    2016-01-01

    En este trabajo se estudiaron algunos aspectos biológicos de la población de Penaeus occidentalis de la parte interna del Golfo de Nicoya. La relación de sexos en la población, hembra : macho = 1,4 : 1, resultó ser estadísticamente diferente del esperado 1 : 1. La dominancia numérica de las hembras es mucho más marcada conforme se incrementa la talla. La longitud al 50% de madurez se estimó para las hembras en 150 mm longitud total, en tanto que para los machos no fue posible la estimación de...

  19. Aluyori, nueva variedad de frijol blanco (alubia para Sinaloa y el Bajío, México Aluyori, a new dry bean white seeded cultivar (alubia for Sinaloa and El Bajío, Mexico

    Directory of Open Access Journals (Sweden)

    Rafael Atanasio Salinas Pérez

    2010-12-01

    Full Text Available Se describe una nueva variedad de frijol, 'Aluyori'. Esta es la primera variedad de tipo alubia grande desarrollada en México. Aluyori es una variedad de ciclo intermedio de hábito de crecimiento determinado tipo I, de grano grande adecuado para el mercado internacional, con más de 50 g en 100 semillas. Aluyori se adapta a condiciones de riego en los estados de Sinaloa y Sonora donde ha mostrado un potencial de rendimiento de 3 t ha-1 y resistencia a enfermedades. Bajo condiciones de riego Aluyori ha resultado superior en rendimiento a las variedades de tipo Azufrado que comandan el mercado en Sinaloa, a Azufrado Higuera en 18% y a Azufrado Regional 87 en 22%, equivalente a 363 y 430 kg ha-1, respectivamente. Las características culinarias de la variedad Aluyori son similares a las de la principal variedad de grano amarillo, Azufrado Higuera.A new white seeded dry bean cultivar is described, 'Aluyori'. This is the first white kidney type cultivar developed and released in Mexico. Aluyori is a type I growth habit intermediate cycle cultivar, large seeded, suited for the national and international market, its seed weight is above 50 g per 100 seeds. Aluyori is adapted to irrigation conditions in States of Sinaloa and Sonora, as well as El Bajío in Central Mexico where has shown high yield potential of 3 t ha-1 and disease resistance, mostly rust elicited by the fungus. Under irrigation at Sinaloa, Aluyori proved to be superior than leading cultivars in the yellow market class, Azufrado Higuera by 18% and Azufrado Regional 87 by 22%, equivalent to 363 kg ha-1 in relationship to the former and 430 kg ha-1 to the second. The culinary characteristics of Aluyori are similar to those in the leading yellow class cv. Azufrado Higuera.

  20. La Economía y la Administración Pública. De la teoría a la práctica sondeando el presupuesto participativo en Othón P. Blanco, Quintana Roo

    OpenAIRE

    Ken Rodríguez, Crucita; Cruz Martínez, Margely

    2015-01-01

    Participatory municipal budget is an instrument of the new public management that incorporates citizen´s participation. With the use of this instrument, transparency and public accountability at all government levels are improved. It also ensures greater efficiency and effectiveness of public spending on the needs of the population. The study of participatory budget makes necessary a review of economic science and public administration. This combination makes it interesting. To implement part...

  1. Measurement of resonances in {sup 12} C + {sup 4} He through inverse kinematics with thick targets; Medicion de resonancias en {sup 12} C + {sup 4} He mediante cinematica inversa con blancos gruesos

    Energy Technology Data Exchange (ETDEWEB)

    Aguilera, E.F.; Lizcano, D.; Martinez Q, E.; Fernandez, M.C.; Murillo, G. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico); Goldberg, V. [Cyclotron Institute, Texas A and M University, College Station, TX 77843 (United States); Skorodumov, B.B.; Rogachev, G. [Physics Department, University of Notre Dame, IN 46556 (United States)

    2003-07-01

    The excitation function of elastic scattering for the system {sup 12} C + {sup 4} He to energy from 0.5 to 3.5 MeV in the center of mass system (c.m.) was measured. We use a gassy thick target and the technique of inverse kinematics which allows to make measurements at 180 degrees in c.m. Using the R matrix theory those was deduced parameters of the resonances and the results were compared with measurements reported in the literature made with other techniques. (Author)

  2. El alma en venta: Apuntes para un debate teórico sobre el trabajo de cuello blanco en empresas multinacionales Souls on Sale: Notes for a Theoretical Debate about White Collar work in Multinacional Enterprises

    Directory of Open Access Journals (Sweden)

    Diego Szlechter

    2011-06-01

    Full Text Available La Segunda Guerra mundial provoca la desaparición de viejos estilos de vida en el mundo occidental. Una de las causas de este fenómeno se compone de drásticos cambios en la estructura ocupacional de occidente, especialmente en EEUU, que resultaron en una nueva clase media de administradores surgidos de los college devenidos muchos de ellos gerentes de las grandes corporaciones. La emergencia de los gerentes como asalariados pone en cuestión la idea de una clase asalariada homogénea al estilo marxista debido a la expansión de actores tales como burócratas, profesionales, que no se agotan en una explicación dualista o dicotómica de la sociedad. Los estudios acerca del trabajo gerencial se enmarcan dentro de los debates acerca de la transición del llamado "fordismo" hacia el "posfordismo" o de producción en masa a la producción flexible. Estas discusiones suelen soslayar o relegar a un papel secundario la cuestión de las transformaciones en la identidad y la subjetividad dentro del espacio de trabajo. Sostenemos en este trabajo que el espacio laboral ocupa un rol fundamental en la conformación de la identidad. Este supuesto se opone a los pronósticos más optimistas del llamado posfordismo que consideran que la esfera extralaboral es la que imprime su sello sobre el mundo del trabajo. La intención de este artículo es indagar, por un lado, cómo abordan las Ciencias Sociales en general y los debates sobre las Clases Medias, la Sociología del Trabajo y la Sociología de las Organizaciones en particular, la cuestión del trabajo gerencial y por otro, qué aportes realiza la bibliografía en este campo para intentar esclarecer qué tipo de subjetividad propician las empresas para con sus mandos gerenciales y qué implicancias conlleva en la práctica laboral concreta de éstos. Es así como se presentarán 3 debates fundamentales que han surcado el camino para acercarnos a dilucidar esta cuestión: la discusión sobre calificación y competencias, la perspectiva de la cultura laboral y, por último, la teoría del capital humano.Second World War caused the disappearing of older life styles in western world. One of the reasons of this phenomen relies on drastic changes in the occupational structure in western world, especially in the US, which result in a new middle class of managers that emerged from colleges who became big bosses in corporate America. Those salaried managers questioned the idea of a homogeneous salaried class in the Marxist way due to the expansion of players such as bureaucrats, professionals, who doesn´t deplete in a dualist or dichotomist explanation of society. Labor studies about managers are framed into the debates around the transition from fordism to posfordism or from mass production to lean production. These discussions used to relegate to a secondary roll the issue of the transformations in the identity and subjectivity at work. We stress in this article that work engage a fundamental roll in the configuration of identity. This postulation opposes to most optimistic forecasts of the so called posfordism, which regard the world outside work as one that outweighs world of labor. The intention of this article is to inquire, on one side, the way Social Sciences in general and the debates around Middle Classes, Sociology of Work and Organizational Sociology in particular, the issue of managerial work and on the other side, which contributions make bibliography in this field in order to clear up what kind of subjectivity corporations promote to their middle management and what implications carry on their everyday work. Therefore, we introduce 3 fundamental debates who have plowed the road to try to elucidate this issue: the debate about qualification and competences, the labor culture perspective and human capital theory.

  3. Dinâmica Populacional de Pulgão Preto dos Citros (Sternorrhyncha em Cultivo Orgânico de Tangerina (Citrus reticulata Blanco em Seropédica-RJ

    Directory of Open Access Journals (Sweden)

    William Rodrigues

    2010-07-01

    Abstract. The aphid Toxoptera citricida (Kyrkaldy (Sternorrhyncha is a potential vector of citrus virus tristeza, consider an important pest of the orchard. Was realized bimonthly monitoring between October 2002 and October 2003, with aim of study the populational dynamic this aphid, included predators ant ant-tending, in organic cropping of tangerine cv Ponkan, Fazendinha Agroecológica, Seropédica, RJ. The faunistic analysis of the ant-tending and predators, were realized across Shanon-Wiener (H' and Simpson (D diversity index's, Berger-Parker dominance (d and equitability J (e. The predators considered efficient in the populational reduction of brown citrus aphid (BCA, was Cycloneda sanguinea (L., Azya luteipes Mulsant and Pseudodorus clavatus (Fabr., although has been registered eight predators attacking BCA colonies. Verified that C. sangiunea obtained the biggest populational peak, following P. clavatus and A. luteipes. The predators diversity and equitability was considered high (H'= 0.7979; D =0.9638; e= 0.8836. Tending BCA, was registered Brachymyrmex sp., Camponotus rufipes (Fabricius Camponotus atriceps (Fabricius, Camponotus crassus (Mayr, Camponotus clypeatus (Mayr; Crematogaster sp., Solenospis sp., Ectatomma brunneum (Fabricius and Pseudomyrmex termitarius (Fr. Smith. Ant-tending was considered medium to H' value (0.6585 and high to D value (0.9012. The equitability was considered medium too (e =0.69. T. citricida populational dynamic is influenced to foliar shoot following predation and ant-tending. These two end factors are antagonist due to protection offer to ants at BCA.

  4. Teor e composição do óleo essencial de patchouli (Pogostemon cablin (Blanco) Benth.) após diferentes tempos de secagem em estufa e temperatura ambiente

    OpenAIRE

    R. C. STORCK; C. Deschamps

    2015-01-01

    RESUMOPatchouli é uma espécie aromática pertencente à família Lamiaceae que possui óleo essencial com alto valor comercial devido à aplicação nas indústrias de higiene, cosméticos e perfumarias. Considerando as características voláteis e estruturas de armazenamento em diferentes órgãos das plantas aromáticas, a determinação de métodos de secagem é de extrema importância e pode afetar tanto o rendimento como a composição do óleo essencial. Este trabalho teve como objetivo principal avaliar o t...

  5. Efecto de la salinidad sobre la fisiología energética del camarón blanco Litopenaeus vannamei (Boone) Effect of salinity on physiological energetics of white shrimp Litopenaeus vannamei (Boone)

    OpenAIRE

    Gustavo Valdez; Fernando Díaz; Ana Denisse Re; Elizabeth Sierra

    2008-01-01

    Se determinó el balance energético en juveniles de Litopenaeus vannamei, aclimatados a la salinidad como hiperosmóticos (20 ups), isosmóticos (26 ups), o hiposmóticos (32 ups). Además, se calculó la razón atómica O:N. La tasa de ingestión, el consumo de oxígeno, la excreción de amonio y el campo de crecimiento fueron afectados significativamente (p < 0.05) cuando los organismos fueron aclimatados a 20, 26 y 32 ups. La mayor cantidad de energía ingerida contenida en el alimento se determinó en...

  6. Longitud a la primera madurez, ciclo reproductivo y crecimiento del camarón blanco (Penaeus occidentalis, decapoda:penaeidae en la parte interna del Golfo de Nicoya, Costa Rica.

    Directory of Open Access Journals (Sweden)

    José Palacios Villegas

    2016-03-01

    Full Text Available En este trabajo se estudiaron algunos aspectos biológicos de la población de Penaeus occidentalis de la parte interna del Golfo de Nicoya. La relación de sexos en la población, hembra : macho = 1,4 : 1, resultó ser estadísticamente diferente del esperado 1 : 1. La dominancia numérica de las hembras es mucho más marcada conforme se incrementa la talla. La longitud al 50% de madurez se estimó para las hembras en 150 mm longitud total, en tanto que para los machos no fue posible la estimación debido al poco número de individuos inmaduros en la muestra. El seguimiento del ciclo reproductivo deja apreciar un período de mayor actividad (desove durante Junio hasta Agosto para las hembras, en tanto que los machos tienden a permanecer activos durante todo el año sin mostrar “picos” claros de actividad. El reclutamiento de individuos jóvenes a la pesquería parece concentrarse durante los meses de Noviembre a Diciembre. La tasa de crecimiento es mayor para las hembras que para los machos durante todo su ciclo vital, por lo que alcanzan tallas mayores.

  7. 椪柑上胚轴离体培养与植株再生研究初报%Study on In Vitro Culture and Plant Regeneration in Citrus Reticulata Blanco Epicotyl

    Institute of Scientific and Technical Information of China (English)

    鲁旭东; 刘华英; 萧浪涛

    2006-01-01

    椪柑无菌苗上胚轴为实验材料进行离体培养,研究了不同种类的激素及其组合对椪柑上胚轴出芽及再生芽生根的影响.结果表明:在MT+6-BA2mg/L培养基上,上胚轴垂直接种时,出芽率可达100%.在MT培养基上单独使用ABA0.2 mg/L、GA30.4 mg/L或GA30.4 mg/L+6-BA2 mg/L对芽再生均有一定的抑制作用,但ABA0.2 mg/L+6-BA2 mg/L则对芽再生有一定的促进作用.1/2MT+NAA0.5 mg/L对再生芽生根效果最好,生根率为87.5%.

  8. Obtaining of Ponkan(Citrus reticulata Blanco)Tetraploid by Culturing Embryos of Mature Seeds%椪柑成熟种子胚培养获得四倍体植株

    Institute of Scientific and Technical Information of China (English)

    洪柳; 刘永忠; 邓秀新

    2005-01-01

    通过组培方法从374粒椪柑种子培养中获得449株小苗.利用流式细胞仪进行染色体倍性分析,发现其中7株小苗为四倍体植株.采用13对SSR引物分析表明这7株四倍体植株均来自珠心细胞,为同源四倍体.这些四倍体的获得为下一步培育三倍体无核品种奠定了基础.

  9. Efecto de la salinidad sobre la fisiología energética del camarón blanco Litopenaeus vannamei (Boone Effect of salinity on physiological energetics of white shrimp Litopenaeus vannamei (Boone

    Directory of Open Access Journals (Sweden)

    Gustavo Valdez

    2008-08-01

    Full Text Available Se determinó el balance energético en juveniles de Litopenaeus vannamei, aclimatados a la salinidad como hiperosmóticos (20 ups, isosmóticos (26 ups, o hiposmóticos (32 ups. Además, se calculó la razón atómica O:N. La tasa de ingestión, el consumo de oxígeno, la excreción de amonio y el campo de crecimiento fueron afectados significativamente (p 0.05 en los camarones expuestos a las tres salinidades. Para optimizar las condiciones de cultivo de Litopenaeus vannamei se recomienda mantener a los juveniles en la salinidad para la cual es isosmótico (26 ups, evitando el estrés ambiental, lo que desde el punto de vista fisiológico se canaliza en una mayor cantidad de energía hacia el campo de crecimiento.The energy balance was determined with in Litopenaeus vannamei, juveniles acclimated to salinity where they were hyperosmotic (20 ups, isosmotic (26 ups, and hypo-osmotic (32 ups. Also O:N atomic ratio was calculated. The ingestion rate, oxygen consumption, ammonium excretion and scope for growth were affected significantly (p 0.05 in the shrimps exposed to the three salinities. We recommend maintaining Litopenaeus vannamei juveniles at the salinity level which is isosmotic (26 ups, where they are free of environmental stress, these conditions for white shrimp juveniles would enhance production in the cultivation of this species.

  10. Estudio de la floración, fructificación y producción de dos variedades de naranja, citrus sinensis L. Oesbeck, y dos de mandarina, Citrus reticulata blanco, en condiciones climáticas de Palmira, Valle del Cauca Analysis of flowering, fruitfulness, and production in two varieties of orange Citrus sinensis L. Oesbeck, and two varieties of tangerine Citrus reticulata blanco, in Palmira, the Cauca Valley

    Directory of Open Access Journals (Sweden)

    Escobar T. William

    1992-12-01

    Full Text Available

    En el trabajo realizado en el Instituto Colombiano Agropecuario en Palmira, Valle del Cauca, se emplearon 12 árboles cítricos de nueve años, injertados sobre mandarina Cleopatra y pertenecientes a dos variedades de naranja: (Nativa del Chocó y Pera del Río y dos de mandarina (Dancy y Wamurco. Se evaluó el desarrollo floral, tomando dos árboles por variedad, la época e intensidad de la floración y fructificación, el porcentaje de cuajamiento, el desarrollo del fruto y el porcentaje de frutos caídos. Se realizó además un estudio de maduración y calidad del fruto. Los períodos de máxima floración ocurrieron a intervalos de 15 - 30 días después de lluvias intensas. El porcentaje de cuajamiento presenta diferencias entre variedades y entre árboles de una misma variedad, lo mismo que el desarrollo y caída de frutos. El punto de madurez fisiológica medido por la relación de sólidos solubles/acidez, muestra la precocidad de la naranja sobre la mandarina. El potencial productivo, dado por la relación entre la fructificación y la cosecha, presenta diferencias acentuadas entre variedades y fluctua entre 9.2 y 44.6%.

    This work was made at the Instituto Colombiano Agropecuario, Palmira in the Cauca Valley. Twelve citric trees nine years old were used grafted with Cleopatra tangerine belonging to two oranges varieties: Nativa del  Chocó and Pera del Río and two tangerine varieties: Dancy and Wamurco. Flowering development was evaluated taking two trees per variety, epoch and intensity of flowering and fruitation, thicken percentage, fruit's development, fruits falled percentage. In addition, maduration and quality studies was made. Definite periods of highest flowering occurs in intervals of 15 to 30 days after intensity rainy day epoch. The thicken percentage of flowers and fruits, fruit's falled and fruit's development show differences among varieties and among trees of a single variety. The physiological maturity point measured by rate soluble solids/acidity, shows precocity of orange's varieties. About productive potential given by rate between fructifying and harvest are shown differences among varieties, fluctuantig between 9.2 and 44/6%.

  11. Intracellular protein degradation: from a vague idea through the lysosome and the ubiquitin-proteasome system and onto human diseases and drug targeting La degradación intracelular de proteínas: Desde una vaga idea, a través del lisosoma y el sistema ubiquitina-proteosoma a las enfermedades humanas y el blanco de las drogas

    Directory of Open Access Journals (Sweden)

    Aaron Ciechanover

    2010-04-01

    Full Text Available Between the 1950s and 1980s, scientists were focusing mostly on how the genetic code is transcribed to RNA and translated to proteins, but how proteins are degraded has remained a neglected research area. With the discovery of the lysosome by Christian de Duve it was assumed that cellular proteins are degraded within this organelle. Yet, several independent lines of experimental evidence strongly suggested that intracellular proteolysis is largely non-lysosomal, but the mechanisms involved remained obscure. The discovery of the ubiquitin-proteasome system resolved the enigma. We now recognize that degradation of intracellular proteins is involved in regulation of a broad array of cellular processes, such as cell cycle and division, regulation of transcription factors, and assurance of the cellular quality control. Not surprisingly, aberrations in the system have been implicated in the pathogenesis of human disease, such as malignancies and neurodegenerative disorders, which led subsequently to an increasing effort to develop mechanism-based drugs.Entre los años 1950 y 1980 los científicos focalizaron sus estudios sobre la forma en que el código genético es transcripto al ARN y traducido a las proteínas, dejando de lado la forma en que éstas se degradan. Con el descubrimiento de los lisosomas por Christian de Duve se asumió que las proteínas se degradaban en el interior de esa organela. Sin embargo, varias líneas de trabajo independientes sugerían fuertemente que la proteólisis intracelular era en su mayor parte no lisosómica, aunque se desconocían sus mecanismos. El descubrimiento del sistema ubiquitina-proteosoma resolvió el enigma. Ahora sabemos que la degradación intracelular de proteínas participa en la regulación de un amplio espectro de procesos celulares como la división y el ciclo celular, la regulación de los factores de transcripción y el control de la calidad celular. No es sorpresa entonces que las aberraciones del sistema estén relacionadas con la patogénesis de enfermedades humanas como tumores y desórdenes neurodegenerativos, lo que llevó luego a un esfuerzo para desarrollar drogas basadas en este mecanismo.

  12. AB-8大孔吸附树脂精制芦柑皮总黄酮及黄酮类化合物的分离%Purification of Total Flavonoids Extracted from Ponkan (Citrus reticulata Blanco cv.Ponkan) Peel by AB-8 Macroporous Adsorption Resin and Separation of Flavonoid Constituents

    Institute of Scientific and Technical Information of China (English)

    骆党委; 叶静; 黄雅燕; 肖美添

    2014-01-01

    目的:研究AB-8大孔吸附树脂精制芦柑皮总黄酮的工艺条件及芦柑皮黄酮类化合物的分离纯化.方法:采用AB-8大孔吸附树脂动态法精制芦柑皮总黄酮,考察上样液总黄酮质量浓度、pH值、上样流速、洗脱液乙醇体积分数对吸附解吸性能的影响;然后将精制的芦柑皮总黄酮经硅胶柱层析、半制备高效液相等技术进行分离纯化,并根据理化性质和波谱数据鉴定化学结构.结果:AB-8大孔树脂精制芦柑皮总黄酮的最佳工艺条件为上样液总黄酮质量浓度3.03 mg/mL、上样液pH 3.0、上样流速3.0 BV/h、洗脱液乙醇体积分数为90%,最优条件下可使芦柑皮总黄酮的纯度从17.8%提高到63.1%;此外,从精制的芦柑皮黄酮中分离到8个黄酮类化合物,分别鉴定为:橘皮素、川陈皮素、4 ',5,7,8-四甲氧基黄酮、5-去甲基-橘皮素、橙黄酮、橙浸膏、柚皮苷、橙皮苷.结论:AB-8大孔树脂能很好地富集纯化芦柑皮总黄酮,该法简单、可行;从精制的芦柑皮黄酮中分离到8个黄酮类化合物,其中,4',5,7,8-四甲氧基黄酮、5-去甲基-橘皮素、橙浸膏、柚皮苷、橙皮苷首次从芦柑皮中分得.

  13. X-ray generation by the interaction of laser pulses of GW and high repetition rate, with solid targets of Al, Cu, Cd and Au; Generacion de rayos X por interaccion de pulsos laser de GW y alta tasa de repeticion, con blancos solidos de Al, Cu, Cd, Au

    Energy Technology Data Exchange (ETDEWEB)

    Fonseca Cuenca, C.; Rodriguez Entem, D.; Mendez Valverde, C.; Roso Franco, L.; Fernandez Gonzalez, F.

    2011-07-01

    In the present study we characterized the Bremsstrahlung radiation and X-ray emission associated with the radiation emitted during the interaction of laser pulses incident on solid targets of different material and discusses the radiation risk generated by the nature of this interaction.

  14. 不同贮藏温度对贡柑采后生理和贮藏品质的影响%Influences of Different Storage Temperatures on Post-harvest Physiology and Storage Quality of Citrus reticulata Blanco var.Gonggan

    Institute of Scientific and Technical Information of China (English)

    柳建良; 陆益明; 张晚风; 吴宇峰; 朱湛光; 姚金明; 李健强

    2008-01-01

    [目的]探讨低温和冰温在贡柑果实成熟中的生理作用.[方法]以7年生德庆贡柑果树为试验材料,研究3种贮藏温度对贡柑采后生理和贮藏品质的影响.[结果]采后德庆贡柑在不同温度条件下果实呼吸作用呈现不同的变化方式,常温(14~24℃)条件下呼吸强度与环境温度高低有关;低温[(4±1)℃]和冰温[(-1±0.5)℃]条件下诱导产生呼吸高峰,且与乙烯释放量的变化有密切的关系.贡柑果实不同温度条件下贮藏25 d,可溶性固形物(TSS)含量从11%下降至近10%,处理间没有显著差异;可滴定酸含量由0.045 g/L下降至0.032~0.038g/L间,处理间差异显著.[结论]低温条件下德庆贡柑果实品质保持较好,常温条件下果实出现异味,冰温条件下果实出现结冰沙现象.

  15. Growth and metabolic responses of whiteleg shrimp Litopenaeus vannamei and Nile tilapia Oreochromis niloticus in polyculture fed with potential probiotic microorganisms on different schedules: Crecimiento y respuesta metabólica del camarón blanco Litopenaeus vannamei y tilapia del Nilo Oreochromis niloticus en policultivo alimentado con microorganismos probióticos potenciales en diferentes frecuencias

    Directory of Open Access Journals (Sweden)

    Juan P Apún-Molina

    2015-07-01

    Full Text Available Probiotics and co-culture of shrimp and tilapia are two strategies to improve yield and eco-efficiency of both species. However, only few studies have analyzed the combination of these two strategies. This study analyzes the effect of a mixture of potential probiotics supplied in the diet at different frequencies in a system of shrimp (10 m-2 and tilapia (5 m-2 in a trial lasting 84 days. The probiotics mixture was composed of four lactic acid bacteria and one yeast strain that were supplied either daily, every 5 days, or every 10 days in the diet and compared with a control without any supply of probiotics. At the end of the experiment, blood chemistry and hematology of shrimp and tilapia were analyzed as an index of physiological condition. Water quality did not differ between treatments. The final weight, feed conversion ratio, and yield of shrimp were significantly higher with daily supply of probiotics compared to shrimp that did not receive probiotics supply, with intermediate values for treatments with probiotics supply every 5 or 10 days. However, level of supplementation every 5 days could be considered as optimal because no significant differences with daily supply were observed for any variable, whereas the supply each 10 days resulted in a significantly lower yield. Significantly higher final weight, feed conversion ratio, and yield of tilapia occurred with daily supplements. Blood cholesterol in tilapia significantly decreased with increasing frequency of probiotics supplementation. These results indicate that probiotics supplements for shrimp and tilapia cultivated simultaneously improved yields and physiological condition.

  16. Optimización del procedimiento del cálculo del alimento en estanques de engorde para la eficiencia del cultivo del camarón blanco Litopenaeus vannamei en Cuba (Optimization of the procedure of calculating the fattening food in

    Directory of Open Access Journals (Sweden)

    Jiménez Cabrera, Redney

    2011-04-01

    Full Text Available ResumenLa alimentación es una práctica de manejo importante si se considera su costoelevado y su efecto nocivo en el ecosistema del estanque. El método másutilizado para alimentar camarones en cultivos es por voleo y la dosis dealimento proporcionada por este método, se determina por tablas dealimentación.SummaryFood is an important management practice considering its high cost and itsharmful impact on the ecosystem of the pond. The method used to feed shrimpcrop is broadcast and the dose of food provided by this method is determinedby feeding tables.

  17. Pautas para la interacción entre la investigación y la extensión en la pesquería del camarón blanco (Penaeus spp. en el Golfo de Nicoya, Costa Rica (ING

    Directory of Open Access Journals (Sweden)

    José Angel Palacios

    2016-03-01

    Full Text Available A work guide is proposed to facilitate the coordination of research and social work in order to establish a link between researches, fishermen and those who execute the ordination policies of marine resources. The ultimate goal is to make research results available to the fisheries resource users. When these results are made accessible to the fishermen they will be able to develop an integral knowledge of the fisheries, from the biological aspects to the actual level of exploitation and ordination policies. In this way, a better under-standing of the exploited population will be obtained and future corrections on renovation rate of the resource and the exploitation rate will have a scientific base and will lead to biological sustainability.

  18. Ausencia de correlación entre las cifras tensionales, el daño de órgano blanco y la presencia de retinopatía en el modelo animal de hipertensión con L-NAME: ¿Son necesarios nuevos modelos animales en hipertensión arterial?

    Directory of Open Access Journals (Sweden)

    Jorge Hernán Ramírez

    2006-12-01

    Full Text Available La comunidad científica nacional e internacional utiliza ampliamente modelos animales de hipertensión para el estudio de posibles fármacos antihipertensivos. Sin embargo, algunas de las complicaciones de la hipertensión arterial no se expresan por completo en los modelos animales. En este artículo se presenta la falta de correlación de las cifras tensionales con la retinopatía, en el modelo de ratas hipertensas por L-NAME. Además, plantea interrogantes con respecto al desarrollo de nuevos modelos animales de hipertensión, mejor correlacionados con la hipertensión humana y que permitan predecir con mayor certeza los efectos de un medicamento antihipertensivo en los seres humanos.

  19. Ausencia de correlación entre las cifras tensionales, el daño de órgano blanco y la presencia de retinopatía en el modelo animal de hipertensión con L-NAME: ¿Son necesarios nuevos modelos animales en hipertensión arterial?.

    Directory of Open Access Journals (Sweden)

    Jorge Hernán Ramírez

    2009-11-01

    Full Text Available La comunidad científica nacional e internacional utiliza ampliamente modelos animales de hipertensión para el estudio de posibles fármacos antihipertensivos. Sin embargo, algunas de las complicaciones de la hipertensión arterial no se expresan por completo en los modelos animales. En este artículo se presenta la falta de correlación de las cifras tensionales con la retinopatía, en el modelo de ratas hipertensas por L-NAME. Además, plantea interrogantes con respecto al desarrollo de nuevos modelos animales de hipertensión, mejor correlacionados con la hipertensión humana y que permitan predecir con mayor certeza los efectos de un medicamento antihipertensivo en los seres humanos.

  20. Fabrication of targets for transmutation of americium : synthesis of inertial matrix by sol-gel method. Procedure study on the infiltration of a radioactive solutions; Fabricacion de blancos para la transmutacion de americio: sintesis de matrices inertes por el metodo sol-gel. Estudio del procedimiento de infiltracion de disoluciones radiactivas

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez Carretero, A. [Universidad Complutense de Madrid (Spain)

    2002-07-01

    Transmutation and incineration are innovative options in the management and disposal of fission products and actinides. nevertheless, the fabrication of targets for transmutation and incineration of actinides and fission products require a reconsideration of conventional processes (mechanical blending) and the development of new procedures compatible with the high activity of these materials. This work presents th R and D of a new fabrication method called INRAM (Infiltration of Radioactive Materials) based on the infiltration of an actinide solution in a porous non radiotoxic material in the form of a pellet (up to 12% An), or beads (up to 40% An) produced by sol-gel. The first method have been used for the fabrication of spinel (MgAl{sub 2}O{sub 4}) targets containing 11% Am, which have been irradiated in HFR-Petten (358.4 full power days). Post-test burn-up calculations showed that at the end of the irradiation the initial Am-241 concentration was reduced to 4%. The fraction of the initial americum atoms that have been fissioned is 28%. The main advantage of the INRAM method is that matrices with low or zero activity can be fabricated and formed into the required shape in an unshielded facility. This method offers other advantages over conventional ones, such as the active wastes are reduced, is easy to automate, adoptable to telemanipulation and dust free, which facilitate operator intervention and minimise radiation exposure to the personal. In addition, the infiltrant needs only be present in liquid form, i. e. it could be transferred directly from the reprocessing plant for fabrication into targets without conversion into-solid form. In order to optimise the infiltration process in depth investigations of all important process parameters, e. g. infiltration kinetics and metal (pu, Am) concentration in the feed solution, and also on extensive study or powder metallurgy parameters for the preparation of high quality fuel pellets with a high density, have been made. In addition a new and unexpected phase formed by the reaction of americium with spinel during the high temperature synthesis process has been identified. This new phase could provide a unique menas to stabilise Am in one particular oxidation state. (Author)

  1. Effect of raising earthworm in root-zone on nutrition and root growth of Ponkan mandarin(Citrus reticulata Blanco)%根区饲养蚯蚓对椪柑树体营养和根系生长的影响

    Institute of Scientific and Technical Information of China (English)

    潘介春; 姜建初; 段敏; 薛进军

    2008-01-01

    以4年生椪柑为试验材料,研究根区饲养蚯蚓对椪柑树体营养和根系生长的影响.试验设4个处理,分别是穴施牛粪、穴施牛粪并接种蚯蚓、根系输液和对照.研究结果表明:穴施牛粪并接种蚯蚓很好地诱导了椪柑根系的生长,其诱导的根量比穴施牛粪和对照的分别高出100.62%和126.27%;穴施牛粪并接种蚯蚓处理的椪柑根系吸收和累积的氮、磷、钾元素分别比对照的高出21.13%、35.44%和76.31%;穴施牛粪并接种蚯蚓明显提高植株叶片的氮、磷、钾营养水平和叶绿素含量,在改善植株矿质营养状况方面优于穴施牛粪处理和根系输液处理.根系输液处理能在短时间内明显增加植株叶片营养含量.

  2. Ausencia de correlación entre las cifras tensionales, el daño de órgano blanco y la presencia de retinopatía en el modelo animal de hipertensión con L-NAME: ¿Son necesarios nuevos modelos animales en hipertensión arterial?

    OpenAIRE

    Jorge Hernán Ramírez; Mauricio Palacios; Hugo Hernán Ocampo; Claudia Zuluaga; Oscar Gutiérrez

    2006-01-01

    La comunidad científica nacional e internacional utiliza ampliamente modelos animales de hipertensión para el estudio de posibles fármacos antihipertensivos. Sin embargo, algunas de las complicaciones de la hipertensión arterial no se expresan por completo en los modelos animales. En este artículo se presenta la falta de correlación de las cifras tensionales con la retinopatía, en el modelo de ratas hipertensas por L-NAME. Además, plantea interrogantes con respecto al desarrollo de nuevos mod...

  3. Complexities in pyroxene compositions derived from absorption band centers: Examples from Apollo samples, HED meteorites, synthetic pure pyroxenes, and remote sensing data

    Science.gov (United States)

    Moriarty, D. P.; Pieters, C. M.

    2016-02-01

    We reexamine the relationship between pyroxene composition and near-infrared absorption bands, integrating measurements of diverse natural and synthetic samples. We test an algorithm (PLC) involving a two-part linear continuum removal and parabolic fits to the 1 and 2 μm bands—a computationally simple approach which can easily be automated and applied to remote sensing data. Employing a suite of synthetic pure pyroxenes, the PLC technique is shown to derive similar band centers to the modified Gaussian model. PLC analyses are extended to natural pyroxene-bearing materials, including (1) bulk lunar basalts and pyroxene separates, (2) diverse lunar soils, and (3) HED meteorites. For natural pyroxenes, the relationship between composition and absorption band center differs from that of synthetic pyroxenes. These differences arise from complexities inherent in natural materials such as exsolution, zoning, mixing, and space weathering. For these reasons, band center measurements of natural pyroxene-bearing materials are compositionally nonunique and could represent three distinct scenarios (1) pyroxene with a narrow compositional range, (2) complexly zoned pyroxene grains, or (3) a mixture of multiple pyroxene (or nonpyroxene) components. Therefore, a universal quantitative relationship between band centers and pyroxene composition cannot be uniquely derived for natural pyroxene-bearing materials without additional geologic context. Nevertheless, useful relative relationships between composition and band center persist in most cases. These relationships are used to interpret M3 data from the Humboldtianum Basin. Four distinct compositional units are identified (1) Mare Humboldtianum basalts, (2) distinct outer basalts, (3) low-Ca pyroxene-bearing materials, and (4) feldspathic materials.

  4. Diseño de detectores robustos en aplicaciones radar

    OpenAIRE

    Mata Moya, David Anastasio de la

    2012-01-01

    El problema de la detección automática de blancos radar puede ser formulado como un test de hipótesis binaria, en el que el sistema tiene que decir a favor de la hipótesis alternativa H1 (blanco presente) o de la hipótesis nula H0 (blanco ausente). El criterio de Neyman-Pearson, NP, es el más extendido en aplicaciones radar. Este detector trata de maximizar la probabilidad de detección, PD, manteniendo la probabilidad de falsa alarma, PFA, igual o inferior a un valor determinado. Cuando las f...

  5. 药用植物广藿香的品种分类探讨%THE CLASSIFICATION OF CULTIVAS OF POGOSTEMON CABLIN CULTIVATED IN GUANGDONG PROVINCE OF CHINA

    Institute of Scientific and Technical Information of China (English)

    徐颂军; 王晓峰; 徐祥浩; 徐鸿华; 李薇; 徐良; 邓辅唐; 赵婷

    2003-01-01

    根据栽培在广东省3个地区的广藿香Pogostemon cablin(Blanco)Benth.的形态特征,药材特性和采用超薄等电聚焦电泳技术得出的蛋白质电泳图谱,把广东省栽培的广藿香分为3个栽培品种( cultivas),即(1)石牌广藿香 (P.cablin (Blanco) Benth. cv. shipaiensis),(2)高要广藿香(P.cablin (Blanco) Benth. cv. gaoyaoensis),(3) 湛江广藿香 (P. cablin (Blanco) Benth. cv. zhanjiangensis).

  6. 77 FR 59004 - Membership of the Senior Executive Service Standing Performance Review Boards

    Science.gov (United States)

    2012-09-25

    .... MITCHELL, MARY M ASSISTANT DIRECTOR, INDUSTRIES, EDUCATION AND VOCATIONAL TRAINING DIVISION. MARBERRY.... CHRISTOPHER DIRECTOR, COMMERCIAL LITIGATION BRANCH. LETTER, DOUGLAS DIRECTOR, APPELLATE STAFF. STERN, MARK B... OF STAFF. BLANCO, KENNETH A DEPUTY ASSISTANT ATTORNEY GENERAL. BROWN, MARY PATRICE DEPUTY...

  7. FINDING THE SOMETHING IN NOTHING.

    Science.gov (United States)

    Robbins, Michael

    2016-07-01

    Formless Infinity: Clinical Explorations of Matte Blanco and Bion. By Riccardo Lombardi. Translated by Karen Christenfeld, Gina Atkinson, Andrea Sabbadini, and Philip Slotkin. London/New York: Routledge, 2016. 282 pp.

  8. Ama a tu cliente como a ti mismo

    OpenAIRE

    Núñez-DelaPeña, Francisco J.

    1993-01-01

    Texto sobre el libro “El nuevo escenario. La cultura de calidad y productividad en las empresas” de Carlos Rodríguez Combeller. Se incluye obra visual de Cornelio García, reproducida en blanco y negro.

  9. Safe eating during cancer treatment

    Science.gov (United States)

    ... eating safely; Immunosuppression - eating safely; Low white blood cell count - eating safely; Neutropenia - eating safely ... as queso blanco fresco and cotija). Fruits and vegetables: Wash all raw fruits, vegetables, and fresh herbs ...

  10. Spinitectus osorioi (Nematoda: Cystidicolidae in the Mexican endemic fish Atherinella alvarezi (Atherinopsidae from the Atlantic River drainage system in Chiapas, Southern Mexico

    Directory of Open Access Journals (Sweden)

    František Moravec

    2010-02-01

    Full Text Available Specimens of Spinitectus osorioi Choudhury and Pérez-Ponce de León, an intestinal nematode species previously considered to be specific to Chirostoma spp and endemic to some lakes in the Pacific drainage in Michoacán, were collected from the freshwater fish Atherinella alvarezi (Díaz-Pardo (Atherinopsidae of the Michol River near Palenque, Chiapas, Southern Mexico, which belongs to the Atlantic drainage system. Studies using light and scanning electron microscopy revealed some taxonomically important, previously unreported or erroneously reported features of S. osorioi, such as the location of the vulva, the actual number and distribution of postanal papillae and phasmids and the presence of a short median cuticular ridge anterior to the cloacal opening (in addition to two long subventral ridges. The recorded somewhat shorter spicules (420-465 and 105-111 μm and mostly smaller eggs (33-36 × 18-20 μm as compared to the original species description may be due to a different type of host, geographical region or generally smaller body measurements of these specimens. These biometrical differences are considered to be within the limits of the intraspecific variability of S. osorioi. A key to species of Spinitectus parasitizing freshwater fishes in Mexico is provided.

  11. Ultrametric Model of Mind, I: Review

    CERN Document Server

    Murtagh, Fionn

    2012-01-01

    We mathematically model Ignacio Matte Blanco's principles of {\\em symmetric} and {\\em asymmetric being} through use of an ultrametric topology. We use for this the highly regarded 1975 book of this Chilean psychiatrist and pyschoanalyst (born 1908, died 1995). Such an ultrametric model corresponds to hierarchical clustering in the empirical data, e.g. text. We show how an ultrametric topology can be used as a mathematical model for the structure of the logic that reflects or expresses Matte Blanco's symmetric being, and hence of the reasoning and thought processes involved in conscious reasoning or in reasoning that is lacking, perhaps entirely, in consciousness or awareness of itself. In a companion paper we study how symmetric (in the sense of Matte Blanco's) reasoning can be demarcated in a context of symmetric and asymmetric reasoning provided by narrative text.

  12. Daño a los hepatocitos por lectina inhibible por D-Galactosa/N-Acetil D-Galactosamina de Entamoeba Histolytica

    OpenAIRE

    Judith Pacheco Yépez; Adrián Rondán Zárate; Mineko Shibayama; Víctor Tsutsumi; Rafael Campos Rodríguez

    2006-01-01

    La lectina de Entamoeba Histolytica se ha involucrado de manera importante en la patogenia de la amibiasis y se cree que participa en la adherencia de los trofozoítos a las células blanco. Además, se describe que la lectina puede dañar directamente a las células blanco. Por otro lado, el papel de los anticuerpos en la inmunidad protectora es controversial. En el presente estudio nosotros analizamos si la lectina se une a la superficie de los hepatocitos y los daña directamente;...

  13. Efecto del Color de Trampa en la Captura de Frankliniella occidentalis (Thysanoptera: thripidae) en Pimiento (Capsicum annuum L.) Effect of Trap Color on Catches of Frankliniella occidentalis (Thysanoptera: thripidae) in Sweet Peppers (Capsicum annum L.)

    OpenAIRE

    Patricia Larraín S; Francisco Varela U; Carlos Quiroz E.; Fernando Graña S

    2006-01-01

    Se realizaron experimentos para determinar la preferencia de color de trips (Frankliniella occidentalis Pergande) en cultivos de pimiento (Capsicum annum L.), en las localidades de Cerrillos de Tamaya (30° lat. S.; 71°16’ long. O) y Pan de Azúcar (29°55’ lat. S; 71°14’ long, O) de la IV Región de Chile. En diseño de bloques completos al azar, se compararon trampas de pegamento azul, blanco, blanco-azul y amarillo.Los resultados mostraron que F. occidentalis fue la especie predominante en el c...

  14. Estabilidad del color del Agregado Trióxido Mineral

    OpenAIRE

    Vallés Rodríguez, Marta

    2014-01-01

    El agregado trióxido mineral (MTA) es un material restaurador utilizado en endodoncia. Según su lugar de colocación, su color será importante en el resultado estético final del diente restaurado. El MTA está comercializado en color blanco para estas indicaciones estéticas, sin embargo se ha observado que a veces cambia de color. En este estudio hemos observado que el MTA blanco se oscurece cuando simultáneamente está en un ambiente sin oxígeno y recibe una fuente de luz. Llegamos a la hipó...

  15. 尖锋时刻

    Institute of Scientific and Technical Information of China (English)

    林岸枫

    2007-01-01

    劳尔的名字用西班牙文拼写为"Raúl Gonzalez Blanco",但很多球迷却认为应该写作"Raúl Siempre Blanco",此语意为"永远的皇马人"。但几乎所有人都知道出生在一个狂热支持马德里竞技队家庭的劳尔,在15岁那年走进伯纳乌球场承受了多大的压力。

  16. MOVIMIENTO DE POLEN ENTRE MAÍCES NATIVOS DE YUCATÁN Y MANTENIMIENTO DE DIVERSIDAD GENÉTICA

    OpenAIRE

    Jaime Canul-Ku; Porfirio Ramírez-Vallejo; Fernando Castillo-González; José Luis Chávez-Servia; Manuel Livera-Muñoz; Luis Manuel Arias-Reyes

    2012-01-01

    En Yucatán, México, el cultivo de diferentes poblaciones nativas de maíz en el sistema milpa favorece el intercambio de polen. Para evaluar la relación entre el flujo de polen y la dinámica de diversidad genética en 2005 y 2006, una población de grano blanco y otra amarilla de tipo Xmejen-nal y Xnuc-nal, se asociaron con calabaza. La variedad de grano amarillo fue sembrada alrededor del blanco. Se cosecharon 540 mazorcas en 8 direcciones, de la periferia al centro, el porcentaje de grano amar...

  17. Compilación de leyes y códigos éticos relacionados con la bioinformática. La bioética

    OpenAIRE

    RITA GERTRUDES, CARLOS

    2015-01-01

    El Libro Blanco de la Bioética y Bioinformática que se presenta tiene por objetivo primordial la formulación de un conjunto de propuestas elaboradas a partir de un análisis de la realidad de nuestro sistema y orientadas a dar respuesta a los retos futuros con una perspectiva de medio y largo plazo. Para la elaboración de este Libro blanco se han involucrado de forma activa tanto pacientes y profesionales de la salud, como áreas departamentales y asociaciones externas. Este proceso particip...

  18. A 3-year sensory fruit quality study in a group of new tangerine hybrids

    Science.gov (United States)

    Florida tangerine (Citrus reticulata Blanco) production accounts for 40-50 % of the US production, and is the third largest of all citrus fruit, following oranges and grapefruits. A number of tangerine selections from the University of Florida Citrus Research and Education Center (CREC) breeding pro...

  19. 'US Early Pride', a very low-seeded, early-maturing mandarin hybrid

    Science.gov (United States)

    ‘US Early Pride’ is an irradiation-induced, very low-seeded mutant of the ‘Fallglo’ mandarin hybrid [‘Bower’ (Citrus reticulata Blanco x (C. paradisi Macf. X C. reticulata) x Temple’]. Mature ‘Fallglo’ budwood was irradiated in 1991 using 3 kRAD units of gamma irradiation from a Cobalt-60 source in ...

  20. Fine QTL mapping of mandarin (Citrus reticulata) fruit characters using high-throughput SNP markers

    Science.gov (United States)

    Seedlessness, flavor, and color are top priorities for mandarin (Citrus reticulata Blanco) cultivar improvement. Given long juvenility, large tree size, and high breeding cost, marker-assisted selection (MAS) may be an expeditious and economical approach to these challenges. The objectives of this s...

  1. The Palaearctic species of the genus Diachasmimorpha Viereck (Hymenoptera: Braconidae: Opiinae)

    NARCIS (Netherlands)

    Achterberg, van C.

    1999-01-01

    Two new species of the genus Diachasmimorpha Viereck, 1913 (Braconidae: Opiinae) are described: D. feijeni spec. nov. from Bhutan (reared from Bactrocera minax (Enderlein) (Diptera: Tephritidae) in fruits of Citrus reticulata Blanco (mandarin)) and D. budrysi spec. nov. from Far East Russia. A key t

  2. Gas chromatography-olfactometry analyses of volatiles produced by ‘Fallglo’ and ‘US Early Pride’ mandarins

    Science.gov (United States)

    ‘Fallglo’ is a popular tangerine (Citrus reticulata Blanco) cultivar with high eating quality. However, ‘Fallglo’ may contain as many as 30-40 seeds per fruit. ‘US Early Pride’ is a seedless mutation of ‘Fallglo’ with similar quality attributes. The objective of the current study was to determine i...

  3. Evaluation of aroma volatiles in a population of tangerine hybrids

    Science.gov (United States)

    Florida tangerine (Citrus reticulata Blanco) production accounts for over 50 % of the US production, and is the third largest of all citrus fruit, following oranges and grapefruits. The tangerine fruit is well known for its pleasant aroma, flavor and ease of consumption. This study evaluated the aro...

  4. 76 FR 25406 - Additional Designations, Foreign Narcotics Kingpin Designation Act

    Science.gov (United States)

    2011-05-04

    .... 702, Providencia, Guadalajara, Jalisco C.P. 44630, Mexico; Avenida Lomas del Bosque No. 2700-42..., Mexico; Paseo de los Tilos No. 1344 A, Col. Rancho Blanco, Guadalajara, Jalisco C.P. 44890, Mexico; Folio... Colimilla Km. 6, Colonia San Gaspar, Tonala, Jalisco C.P. 45404, Mexico; Zona Metropolitana,...

  5. Motores Térmicos para Ingeniería Mecánica

    OpenAIRE

    Guardiola, Carlos; Ruiz, Santiago; Pla, Benjamín; Blanco-Rodríguez, David

    2014-01-01

    Apuntes de Motores Térmicos para Ingeniería Mecánica Guardiola, C.; Ruiz, S.; Pla, B.; Blanco-Rodríguez, D. (2014). Motores Térmicos para Ingeniería Mecánica. Editorial Universitat Politècnica de València. http://hdl.handle.net/10251/37261.

  6. Las capacidades y las potencialidades humanas, ¿son posibles en la época del hombre virtual?

    OpenAIRE

    Becerra, Aída

    2000-01-01

    Se analizan las nociones que aluden a características humanas, desde la psicología humanista, revisando la aportación de autores como Abraham Maslow, Viktor Frankl, Rollo May y Carl Rogers. Se incluye la reproducción en blanco y negro de obra del artista plástico Samuel Meléndrez.

  7. Revision of the genus Cleistanthus (Euphorbiaceae) in the Philippines

    NARCIS (Netherlands)

    Dressler, Stefan

    1999-01-01

    The Philippine species of the euphorbiaceous genus Cleistanthus are revised. Sixteen species are recognised for this archipelago of which two are recorded from there for the first time. The oldest available combination from the Philippines [C. orgyalis (Blanco) Merr.] remains obscure and three colle

  8. Oxypregnane-oligoglycosides from the Stems of Stephanotis mucronata (Asclepiadaceae)

    Institute of Scientific and Technical Information of China (English)

    Ru Song ZHANG; Yi Ping YE; Xiao Yu LI; Xiao Ying ZHANG

    2005-01-01

    Four new oxypregnane-oligoglycosides, mucronatosides A (1), B (2), C (3), and D (4),together with one known stephanoside E (5) were isolated from the stems of Stephanotis mucronata (Blanco) Merr.. Their chemical structures were determined on the basis of chemical and extensive spectroscopic methods including one-dimensional and two-dimensional NMR.

  9. Wat komt bovenaan de lijst van Google?

    NARCIS (Netherlands)

    Litvak, Nelly

    2006-01-01

    In 1998 presenteerden de PhD-studenten Sergey Brin en Larry Page uit Stanford het artikel ‘The anatomy of a Large-Scale Hypertextual Web Search Engine’ op het zevende World-Wide-Web-congres in Brisbane, Australië. Zij beschreven de Web-zoekmachine Google, waarvan de blanco bladzijde tegenwoordig zo

  10. Disminuyen en los Estados Unidos las infecciones por VPH.

    Science.gov (United States)

    La infección por los tipos del virus del papiloma humano (VPH) en el blanco de la vacuna cuadrivalente se redujo en casi dos tercios en las adolescentes desde que se recomendó la vacunación en los Estados Unidos.

  11. 75 FR 54696 - Unblocking of Specially Designated Nationals and Blocked Persons Pursuant to Executive Order 12978

    Science.gov (United States)

    2010-09-08

    ...) (``IEEPA''), issued Executive Order 12978 (60 FR 54579, October 24, 1995) (the ``Order''). In the Order..., Colombia; c/o DROGAS LA REBAJA BARRANQUILLA S.A., Barranquilla, Colombia; c/o BLANCO PHARMA S.A., Bogota, Colombia; c/o DROGAS LA REBAJA PRINCIPAL S.A., Bogota, Colombia; c/o DROGAS LA REBAJA CALI S.A.,...

  12. Ressenyes

    OpenAIRE

    Farré i Coma, Jordi

    1998-01-01

    Obra ressenyada: Víctor SAMPEDRO BLANCO, Moviments socials: entre la lògica i les formes periodístiques. Movimientos sociales: debates sin mordaza. Desobediencia civil y servicio militar (1970-1996). Madrid: Centro de Estudios Constitucionales, 1997.

  13. Eventos de Agosto (August Events).

    Science.gov (United States)

    Toro, Leonor; Pla, Myrna

    Written in Spanish, this booklet contains brief information on seven August events celebrated by Puerto Ricans: Herbert Hoover's birthdate (August 10); Acta del Seguro Social (Social Security Act, August 14); Julian E. Blanco (August 14), Enmienda 19 Sufragia de la Mujer (Amendment 19, Women's Suffrage, August 26); Benjamin Harrison (August 20);…

  14. 40 CFR 86.007-30 - Certification.

    Science.gov (United States)

    2010-07-01

    ... Grand Gunnison Hinsdale Huerfano Jackson Jefferson Kit Carson Lake La Plata Larimer Las Animas Lincoln Mesa Mineral Moffat Montezuma Montrose Morgan Otero Ouray Park Pitkin Pueblo Rio Blanco Rio Grande... Alamos Luna McKinley Mora Otero Rio Arriba Roosevelt Sandoval San Juan San Miguel Santa Fe Sierra...

  15. 40 CFR 86.094-30 - Certification.

    Science.gov (United States)

    2010-07-01

    ... Grand Gunnison Hinsdale Huerfano Jackson Jefferson Kit Carson Lake La Plata Larimer Las Animas Lincoln Mesa Mineral Moffat Montezuma Montrose Morgan Otero Ouray Park Pitkin Pueblo Rio Blanco Rio Grande... Alamos Luna McKinley Mora Otero Rio Arriba Roosevelt Sandoval San Juan San Miguel Santa Fe Sierra...

  16. 77 FR 43414 - Bureau of Political-Military Affairs; Statutory Debarment Under the Arms Export Control Act and...

    Science.gov (United States)

    2012-07-24

    ... Florida; Case No. 1:10-60331-CR-SEITZ-1; November, 1938. (4) Jorge Blanco-Castillo; September 20, 2011; U... California; Case No. SACR 08-00322-CJC; December, 1954. (11) Santos Isidro de la Paz; May 11, 2012; U.S.... (24) Octavio Ibarra-Sanchez; February 22, 2012; U.S. District Court, Southern District of Texas;...

  17. Toxicity and repellency of essential oils to Zabrotes subfasciatus (Boheman) (Coleoptera, Chrysomelidae, Bruchinae) in Phaseolus vulgaris L Toxicidade e repelência de óleos essenciais a Zabrotes subfasciatus (Boheman) (Coleoptera, Chrysomelidae, Bruchinae) em grãos de Phaseolus vulgaris L

    OpenAIRE

    Solange Maria de França; José Vargas de Oliveira; Alberto Belo Esteves Filho; Cynara Moura de Oliveira

    2012-01-01

    The effects of tangerine (Phaseolus vulgaris Blanco), lemon (Citrus medica limonum Lush), pear orange (Citrus sinensis L. Osbeck), red copaiba (Copaifera langsdorffii Desf.), rosemary (Baccharis dracunculifolia De Candole), Eucalyptus (Eucalyptus globulus Labillardière and E. citriodora Hook), lemongrass (Cymbopogon citratus Stapf.) and citronella (Cimbopogon nardus Linnaeus) oils at several concentrations on Zabrotes subfasciatus (Boheman) were studied. In toxicity tests, grains of Phaseolus...

  18. El toloache y sus parientes

    OpenAIRE

    Hernández, Francisco, 1517-1587

    1997-01-01

    Texto de divulgación sobre el toloache, una planta solanácea, pariente de la mandrágora, el beleño y la belladona, que producen alteraciones temporales de la conducta y en dosis excesivas puede causar la muerte. Se incluye obra del pintor Dale Kaplan, reproducida en blanco y negro.

  19. El hombre democrático según Aristoteles

    Directory of Open Access Journals (Sweden)

    Julio Barreiro

    2015-10-01

    Full Text Available "El conocimiento del blanco que, como arqueros, tenemos que buscar para nuestra vida, pertenece en última instancia. a la política"ARISTÓTELESContenido; Etica y política. La democracia según Aristóteles. De la polis a la politeia  

  20. Pulmonary hemodynamic profile in chronic obstructive pulmonary disease [Corrigendum

    OpenAIRE

    Portillo, Karina

    2015-01-01

    Portillo K, Torralba Y, Blanco I, et al. International Journal of Chronic Obstructive Pulmonary Disease. 2015;10:1313–1320. On page 1319, Acknowledgments section, missing acknowledgment, need to add: This work was performed as part of the doctoral program in Internal Medicine at the Universitat Autónoma de Barcelona.Read the original article

  1. Pulmonary hemodynamic profile in chronic obstructive pulmonary disease [Corrigendum

    OpenAIRE

    Portillo K; Torralba Y; Blanco I; Burgos F; Rodriguez-Roisin R; Rios J; Roca J.; Barberà JA

    2015-01-01

    Portillo K, Torralba Y, Blanco I, et al. International Journal of Chronic Obstructive Pulmonary Disease. 2015;10:1313–1320. On page 1319, Acknowledgments section, missing acknowledgment, need to add: This work was performed as part of the doctoral program in Internal Medicine at the Universitat Autónoma de Barcelona.Read the original article

  2. Eracing the Simple Certainty of Difference: A Psychoanalytic Contribution.

    Science.gov (United States)

    Lombardi, Karen L.

    2002-01-01

    Asserts that racism, classism, and sexism are fostered not only through material conditions but also through the privileging of difference common to Western intellectual thought. Turns to the unconscious of psychoanalytic theory, especially the theories of Melanie Klein and Ignacio Matter Blanco, recommending an alternative discourse on race,…

  3. Immunomodulating Steroidal Glycosides from the Roots of Stephanotis Mucronata

    Institute of Scientific and Technical Information of China (English)

    YeYi-ping; LiXiao-yu; SunHong-Xiang; ChenFeng-yang; PanYuan-jian

    2005-01-01

    1 Introduction The plants beonging to the Asclepiadaceae family are reported to be rich in pregnane and cardiac glycosides.In recent years, the pregnanes and their glycosides hale been shown to possess antitumor, antiepilepsy, and antifertility activities. The dried roots of Stephanotis mncronata(BLANCO) Meer.

  4. Sümbiotismi võimalus / Jüri Talvet

    Index Scriptorium Estoniae

    Talvet, Jüri, 1945-

    2004-01-01

    Postmodernistliku kirjandusteaduse ja kirjanduse kriisist. Ka kolmest postmodernistlikust romaanist: Tõnu Õnnepalu "Hind" (1995), Ene Mihkelsoni "Ahasveeruse uni" (2001) ja Javier MarÍase "Coraz̤n tan blanco" (1992, eesti k. "Nii valge süda", 2002). Vastukajad: Toomes, Tarvo, Looming, nr. 7, lk. 1117-1118 ; Vaher, Berk. Papagoi ja koolibri, Vihik, 2004, nr. 7, lk. 2

  5. Trophic interactions among sympatric zooplanktivorous fish species in volume change conditions in a large, shallow, tropical lake

    Directory of Open Access Journals (Sweden)

    Rodrigo Moncayo-Estrada

    2011-03-01

    Full Text Available Significant reductions in the water volume of shallow lakes impose a restriction on species segregation promoting more interactions in the trophic relationships. The diets of three closely related zooplanktivorous silversides belonging to the Atherinopsidae species flock of lake Chapala , Mexico, were analyzed at two sites (Chirostoma jordani, C. labarcae, and C. consocium. Diets were described in critical shallow (August 2000 and volume recovery conditions (August 2005. Diets included mainly cladocerans (Bosmina, Ceriodaphnia, and Daphnia and copepods (Cyclops. A significant difference in diets was detected when comparing years (MRPP analysis, A = 0.22, p La reducción significativa en el volumen de agua de los lagos someros impone una restricción en la segregación de las especies y promueve una mayor interacción en las relaciones tróficas. Se analizó la dieta de tres especies cercanamente emparentadas de zooplanctívoros pertenecientes al flock de Aterinópsidos del lago de Chapala en dos sitios (Chirostoma jordani, C. labarcae y C. consocium. Las dieta fue descrita en una condición somera crítica (Agosto 2000 y en una condición de recuperación del lago (Agosto 2005. En la dieta se incluyen principalmente cladóceros (Bosmina, Ceriodaphnia y Daphnia y copépodos (Cyclops. Se detectó una diferencia significativa en la dieta cuando se comparan los años (análisis MRPP, A = 0.22, p < 0.0001 y los sitios en los diferentes años (análisis MRPP, A = 0.17, p = 0.004. De acuerdo a los valores promedio de amplitud de nicho, las especies fueron clasificadas como especialistas y consumidores intermediarios. En condiciones someras, el pequeño intervalo de la amplitud de nicho (1.72 a 3.64 y los altos valores del traslape de nicho (D = 0.64, L = 8.62 indicaron un alto potencial para una interacción explotativa inter-específica. Cuando el lago se recupera en su volumen, un incremento en el intervalo de amplitud de nicho (1.04 a 4.96 y los

  6. Lunar Impact Basins: Stratigraphy, Sequence and Ages from Superposed Impact Crater Populations Measured from Lunar Orbiter Laser Altimeter (LOLA) Data

    Science.gov (United States)

    Fassett, C. I.; Head, J. W.; Kadish, S. J.; Mazarico, E.; Neumann, G. A.; Smith, D. E.; Zuber, M. T.

    2012-01-01

    Impact basin formation is a fundamental process in the evolution of the Moon and records the history of impactors in the early solar system. In order to assess the stratigraphy, sequence, and ages of impact basins and the impactor population as a function of time, we have used topography from the Lunar Orbiter Laser Altimeter (LOLA) on the Lunar Reconnaissance Orbiter (LRO) to measure the superposed impact crater size-frequency distributions for 30 lunar basins (D = 300 km). These data generally support the widely used Wilhelms sequence of lunar basins, although we find significantly higher densities of superposed craters on many lunar basins than derived by Wilhelms (50% higher densities). Our data also provide new insight into the timing of the transition between distinct crater populations characteristic of ancient and young lunar terrains. The transition from a lunar impact flux dominated by Population 1 to Population 2 occurred before the mid-Nectarian. This is before the end of the period of rapid cratering, and potentially before the end of the hypothesized Late Heavy Bombardment. LOLA-derived crater densities also suggest that many Pre-Nectarian basins, such as South Pole-Aitken, have been cratered to saturation equilibrium. Finally, both crater counts and stratigraphic observations based on LOLA data are applicable to specific basin stratigraphic problems of interest; for example, using these data, we suggest that Serenitatis is older than Nectaris, and Humboldtianum is younger than Crisium. Sample return missions to specific basins can anchor these measurements to a Pre-Imbrian absolute chronology.

  7. Estimación del número de reproducibilidad basal para la leishmaniasis tegumentar americana en dos localidades del nordeste de la Provincia de Salta, Argentina Estimation of the basic reproducibility number for American tegumentary leishmaniasis in two sitesin northeastern Salta Province, Argentina

    Directory of Open Access Journals (Sweden)

    Juan Carlos Rosales

    2007-11-01

    Full Text Available Un modelo matemático determinístico del tipo SIR para tres hospedadores es aplicado para analizar el proceso de transmisión de la leishmaniasis tegumentar americana, en las localidades Río Blanco y paraje Las Carmelitas, ubicadas en el Nordeste de la Provincia de Salta, Argentina, del mismo se deriva la expresión para el número de reproducibilidad basal Ro. Se implementa el modelo en ambiente MATLAB, en base a datos de las zonas endémicas se realizan simulaciones y se obtienen estimaciones numéricas de Ro. Para el caso de Río Blanco hemos obtenido el valor Ro = 4,689, mientras que para el paraje Las Carmelitas se obtuvo Ro = 1,948. Estudiando numéricamente el modelo también se estima la fuerza de infección, obteniendo para las localidades mencionadas 0,239 y 0,171 (unidad 1/año, respectivamente. Las simulaciones muestran que en la localidad de Río Blanco la fase endémica resulta más sostenida que la fase inter-epidémica presentada en el paraje Las Carmelitas. Las estimaciones obtenidas para estos parámetros epidemiológicos indican donde las instituciones del Ministerio de Salud Pública de la Provincia y de la Nación tendrán más dificultad para el control y la erradicación de la enfermedad.A SIR-type deterministic mathematical model for three hosts is applied to analyze the transmission process for American tegumentary leishmaniasis in Río Blanco and Las Carmelitas, located in northeastern Salta Province, Argentina, and to derive the expression for the baseline reproducibility number Ro. The model is implemented in the MATLAB environment, and based on data from endemic areas, simulations are performed and numerical estimations of Ro are obtained. Río Blanco shows Ro = 4.689 and Las Carmelitas Ro = 1.948. By studying the model numerically, we also estimate the force of infection, namely 0.239 and 0.171 (unit 1/year, respectively. The simulations show that in Río Blanco, the endemic phase was more sustained than the inter

  8. Light Curves of 213 Type Ia Supernovae from the ESSENCE Survey

    CERN Document Server

    Narayan, Gautham; Tucker, Brad E; Foley, Ryan J; Wood-Vasey, W Michael; Challis, Peter; Stubbs, Christopher W; Kirshner, Robert P; Aguilera, Claudio; Becker, Andrew C; Blondin, Stephane; Clocchiatti, Alejandro; Covarrubias, Ricardo; Damke, Guillermo; Davis, Tamara M; Filippenko, Alexei V; Ganeshalingam, Mohan; Garg, Arti; Garnavich, Peter M; Hicken, Malcolm; Jha, Saurabh W; Krisciunas, Kevin; Leibundgut, Bruno; Li, Weidong; Matheson, Thomas; Miknaitis, Gajus; Pignata, Guiliano; Prieto, Jose Luis; Riess, Adam G; Schmidt, Brian P; Silverman, Jeffrey M; Smith, R Chris; Sollerman, Jesper; Spyromilio, Jason; Suntzeff, Nicholas B; Tonry, John L; Zenteno, Alfredo

    2016-01-01

    The ESSENCE survey discovered 213 Type Ia supernovae at redshifts 0.1 < z < 0.81 between 2002 and 2008. We present their R and I-band photometry, measured from images obtained using the MOSAIC II camera at the CTIO 4 m Blanco telescope, along with rapid-response spectroscopy for each object. We use our spectroscopic follow-up observations to determine an accurate, quantitative classification and a precise redshift. Through an extensive calibration program we have improved the precision of the CTIO Blanco natural photometric system. We use several empirical metrics to measure our internal photometric consistency and our absolute calibration of the survey. We assess the effect of various potential sources of systematic bias on our measured fluxes, and we estimate that the dominant term in the systematic error budget from the photometric calibration on our absolute fluxes is ~1%.

  9. Involvement of ethylene in chlorophyll degradation in peel of citrus fruits.

    Science.gov (United States)

    Purvis, A C; Barmore, C R

    1981-10-01

    The effect of ethylene on chlorophyll degradation in the peel of Robinson tangerine (X Citrus reticulata Blanco) and calamondin (X Citrofortunellamitis [Blanco] Ingram and Moore) fruits was studied. The chlorophyll degrading system in the peel of these two citrus species was not self-sustaining but required ethylene to function. Chlorophyll degradation ceased immediately when fruit were removed from ethylene and held in ethylene-free air at 0.2 atmospheric pressure. However, at atmospheric pressure, chlorophyll degradation continued for 24 hours in the absence of exogenous ethylene. Although chlorophyllase levels were negatively correlated with chlorophyll content in the peel (r = -0.981; P citrus studied, but its primary role is not solely for the induction of chlorophyllase activity. PMID:16662012

  10. Noé, Schreber e a maldição do pacto

    Directory of Open Access Journals (Sweden)

    William F. Pinar

    2008-01-01

    Full Text Available El artículo describe a un libro que fue elaborado para profesores, un texto sinóptico resumiendo y yuxtaponiendo pesquisas que posibilitan a los profesores complicar la conversación curricular en la cual ellos y sus alumnos están empeñados. Reconstruye la escena primaria, recordando el pacto entre Jehová y los israelíes en el Viejo Testamento y argumentando que el racismo blanco se relaciona en ese pacto, que envuelve la represión del deseo sexual entre padre e hijo y la proyección de la diferencia sexual para los “Otros”. Las razones para la reconstrucción de esa escena sobre la raza en Occidente son curriculares. Ella tiene como objetivo, que los profesores puedan entender las formas continuas y mutantes del racismo blanco.

  11. Spectrally and angularly selective photothermal and photovoltaic converters under one-sun illumination

    International Nuclear Information System (INIS)

    The efficiency of both photothermal and photovoltaic (PV) converters may be increased if their emittance is strongly forward-peaked. This technology was recently proposed for photothermal converters by Blanco et al (2004 Solar Energy 76 683). Ideal angularly and spectrally selective surfaces were defined in this paper. Optimization procedures for appropriately defined spectral and angular quantities were developed to maximize solar energy conversion efficiency. The optimization procedure for photothermal conversion is similar but formally simpler than that used by Blanco et al. The optimization procedure and the results shown here for PV conversion are new. The potential of the proposed technology to increase conversion efficiency is more important in the case of photothermal conversion (maximum possible increase of efficiency is about 0.3) than in the case of PV conversion (possible increase is about 0.1). This potential is weakly dependent on the irreversibilities inside both types of solar converters

  12. Non-Gaussianity of Racetrack Inflation Models

    Institute of Scientific and Technical Information of China (English)

    SUN Cheng-Yi; ZHANG De-Hai

    2007-01-01

    In this paper, we use the result in [C.Y. Sun and D.H. Zhang, arXiv:astro-ph/0510709] to calculate the non-Gaussianity of the racetrack models in[J.J. Blanco-Pillado, et al., JHEP 0411 (2004) 063; arXiv:hep-th/0406230]and [J.J. Blanco-Pillado, et al., arXiv:hep-th/0603129]. The two models give different non-Gaussianities. Both of them are reasonable. However, we find that, for multi-field inflationary models with the non-trivial metric of the field space,the condition of the slow-roll cannot guarantee small non-Gaussianities.

  13. Libros recibidos

    OpenAIRE

    2014-01-01

    ARELLANO, Ignacio. El arte de hacer comedias. Estudios sobre teatro del Siglo de Oro. Madrid, Biblioteca nueva, 2011. 331 p. (ISBN: 978-84-9940-245-1.)BLANCO, Mercedes. Góngora heroico. Las «Soledades» y la tradición épica. Madrid, Centro de Estudios Europa Hispánica, 2012. 443 p. (ISBN: 978-84-15245-22-3; Confluencias.)BLANCO, Mercedes. Góngora o la invención de una lengua. [León], Universidad de León, Área de Publicaciones, 2012. 518 p. (ISBN: 978-84-9773-613-8; Anejo III de Lectura y Signo...

  14. Light Curves of 213 Type Ia Supernovae from the ESSENCE Survey

    Science.gov (United States)

    Narayan, G.; Rest, A.; Tucker, B. E.; Foley, R. J.; Wood-Vasey, W. M.; Challis, P.; Stubbs, C.; Kirshner, R. P.; Aguilera, C.; Becker, A. C.; Blondin, S.; Clocchiatti, A.; Covarrubias, R.; Damke, G.; Davis, T. M.; Filippenko, A. V.; Ganeshalingam, M.; Garg, A.; Garnavich, P. M.; Hicken, M.; Jha, S. W.; Krisciunas, K.; Leibundgut, B.; Li, W.; Matheson, T.; Miknaitis, G.; Pignata, G.; Prieto, J. L.; Riess, A. G.; Schmidt, B. P.; Silverman, J. M.; Smith, R. C.; Sollerman, J.; Spyromilio, J.; Suntzeff, N. B.; Tonry, J. L.; Zenteno, A.

    2016-05-01

    The ESSENCE survey discovered 213 Type Ia supernovae at redshifts 0.1\\lt z\\lt 0.81 between 2002 and 2008. We present their R- and I-band photometry, measured from images obtained using the MOSAIC II camera at the CTIO Blanco, along with rapid-response spectroscopy for each object. We use our spectroscopic follow-up observations to determine an accurate, quantitative classification, and precise redshift. Through an extensive calibration program we have improved the precision of the CTIO Blanco natural photometric system. We use several empirical metrics to measure our internal photometric consistency and our absolute calibration of the survey. We assess the effect of various potential sources of systematic bias on our measured fluxes, and estimate the dominant term in the systematic error budget from the photometric calibration on our absolute fluxes is ˜1%.

  15. Unemployment and Mental Health among Mexican Immigrants and other Population Groups in the United States

    Directory of Open Access Journals (Sweden)

    Maritza CAICEDO

    2016-01-01

    Full Text Available Analizamos el impacto del desempleo en la salud mental de los inmigrantes mexicanos, comparando a éstos con los mexicanos nacidos en Estados Unidos, con otros hispanos, y con los nativos blancos y afroamericanos, con base en las National Health Interview Surveys de 1999 y 2009. Destacan las bajas prevalencias de tensiones sicológicas en los inmigrantes mexicanos. A pesar del aumento de las tasas de desempleo, los problemas de salud mental se mantuvieron estables; sin embargo, nuestros resultados sugieren un fuerte efecto negativo del desempleo sobre la salud mental. Efectos de la composición de los grupos ayudan a explicarlo. El impacto del desempleo sobre la salud mental aumenta considerablemente entre los blancos nativos, mientras en los grupos con más des - ventajas socioeconómicas, los afroamericanos y los hispanos, se mantuvo sin cambios.

  16. Bases moleculares y celulares del efecto antineoplásico del péptido CIGB-300 en células derivadas de tumores sólidos

    OpenAIRE

    Perera Negrin, Yasser

    2012-01-01

    El CIGB-300 es un péptido sintético seleccionado por su capacidad de inhibir la fosforilación catalizada por la enzima CK2 a través de la interacción con el sitio fosfoaceptor. Evidencias preliminares sugieren que el CIGB-300 es capaz de inhibir la proliferación celular y que retarda el crecimiento tumoral en un modelo singénico de cáncer. Sin embargo, la identidad del(los) blanco(s) molecular(es), y los efectos de la inhibición de su fosforilación sobre la célula tumoral no han sido caracter...

  17. Persistent blooms of surf diatoms along the pacific coast U. S. A. I. physical characteristics of the coastal region in relation to the distribution and abundance of the species

    Energy Technology Data Exchange (ETDEWEB)

    Garver, J.L.; Lewin, J.

    1981-01-01

    The surf diatom populations at thirteen beaches along the Oregon and Washington coast were studied from June 1977 through August 1978. Chaetoceros armatum T. West and Asterionella socialis Lewin and Norris, the two species responsible for the blooms, were present in the surf along beaches between Point Grenville, Washington, and Cape Blanco, Oregon. On the basis of the cell densities of these two species, the beaches were arranged into four distinct groups. Discriminant analysis showed that the four groups could also be completely separated by three discriminant functions composed of four physical variables: offshore bottomslope, per cent chlorite, per cent montmorillonite and beach length. The absence of surf diatoms at two beaches south of Cape Blanco can probably be explained by the unsuitable physical conditions along the coast south of the Cape.

  18. 橘核不同炮制品镇痛作用研究

    Institute of Scientific and Technical Information of China (English)

    高扣宝

    2001-01-01

    @@ 1 实验材料 橘核购自南京市药材公司.经鉴定为芸香科植物橘Citrus reticulata Blanco 的干燥成熟种子.昆明种小白鼠,体重18~22g,由南京中医药大学实验动物中心提供.

  19. Chemical composition and anti-inflammatory effects of essential oil from Hallabong flower

    OpenAIRE

    Kim, Min-Jin; Yang, Kyong-Wol; Kim, Sang Suk; Park, Suk Man; Park, Kyung Jin; Kim, Kwang Sik; Choi, Young Hun; Cho, Kwang Keun; Lee, Nam Ho; Hyun, Chang-Gu

    2013-01-01

    A number of essential oils derived from plants are claimed to have several medicinal functions, including anti-cancer and anti-inflammation effects. However, the chemical composition and biological activities of flower-derived components have not been sufficiently characterized. Therefore, we investigated the composition of essential oils from Hallabong flower [(Citrus unshiu Marcov × Citrus sinensis Osbeck) × Citrus reticulata Blanco] and their anti-inflammatory effects. Hydro-dist ...

  20. Genome-wide Expression Profiling in Ponkan Infected by Candidatus Liberibacter asiaticus

    OpenAIRE

    Jiang, Bo; Zhong, Yun; Cheng, Chunzhen; Zeng, Jiwu; ZHONG, Guangyan; Yi, Ganjun

    2014-01-01

    Huanglongbing (HLB) is an economical and destructive disease of citrus in South China, such as in Guangdong, Guangxi that is caused by the bacterium Candidatus Liberibacter asiaticus. The interaction at mRNA level between pathogen and citrus (Ponkan, Citrus reticulata Blanco ) was primarily researched by Digital Gene Expression Tag Profiling. Ponkan leaves at 13 weeks and 26 weeks after HLB inoculation were used for analysis. The numbers of up-regulated genes were increased from 37% in 13 wpi...

  1. Changes in free and bound fractions of aroma compounds of four Vitis vinifera cultivars at the last ripening stages

    OpenAIRE

    Vilanova, Mar; Genisheva, Zlatina Asenova; Bescansa, Lorenzo; Masa, Antón; Oliveira, J. M.

    2012-01-01

    The volatile composition of white Agudelo, Blanco lexitimo, Godello and red Serradelo cultivars (NW Spain) harvested at two different stages of ripening have been evaluated. C6-compounds, alcohols, volatile fatty acids, monoterpenes, C13-norisoprenoids, volatile phenols and carbonyl compounds were identified and quantified in free and glycosidically bound forms by gas chromatography–mass spectrometry (GC–MS). The total volatile concentration showed a significant increase between the two ri...

  2. Growth and proximate composition of the Chaetoceros calcitrans f. pumilus under different temperature, salinity and carbon dioxide levels

    Digital Repository Service at National Institute of Oceanography (India)

    Raghavan, G.; Haridevi, C.K.; Gopinathan, C.P.

    & Garland1994). Its culture is an important activity, which in£uences the nutritional value of aquatic herbivores (Whyte, Bourne & Hodgson 1989) as well as the economic aspects of their culture (Coutteau & Sorgeloos1992). Very few investigations... to in£uence the nutritional value of micro algae, such as cell wall digestibility (Epifanio, Valenti & Turk 1981), cell size and bio- chemical composition (Fernandez-Reiriz, Perez- Camacho,Ferreiro,Blanco,Planas,Campos&Labarta 1989).However...

  3. Carbohydrate levels in the leaves and production consistency of the Ponkan tangerine when thinned out with Ethephon Teores de carboidratos nas folhas e regularidade da produção de tangerineira 'Ponkan' raleadas com Ethephon

    OpenAIRE

    Rodrigo Amato Moreira; José Darlan Ramos; Maria do Céu Monteiro da Cruz; Lílian Araújo Pantoja; Alexandre Soares dos Santos

    2013-01-01

    Management practices that maintain carbohydrate reserves in tangerines are necessary in order to ensure good yields. This experiment was carried out with the object of evaluating the levels of carbohydrates in the leaves, and consistency in the production of the Ponkan tangerine (Citrus reticulata Blanco) when subjected to chemical thinning with five concentrations of Ethephon for three consecutive years. The Ponkan tangerine evaluated had been grafted onto Rangpur lime (Citrus limonia Osbeck...

  4. El centenario de Piaget y Vygotsky en Ginebra

    OpenAIRE

    Mejía-Arauz, Rebeca

    1997-01-01

    Se comenta y analiza el II Congreso Internacional de Investigación Sociocultural realizado en 1996, que tuvo como objetivos, ademas de conmemorar y rendir homenaje a Jean Piaget y Lev Vygotsky, contribuir a reformular las ciencias sociales y humanas alrededor de una perspectiva sociocultural, en contraste con los paradigmas de las neurociencias, y proporcionar un foro para la discusión y desarrollo del enfoque sociocultural. Se incluye obra del pintor Dale Kaplan reproducida en blanco y negro.

  5. Auto-motivación como factor de la competência emocional

    OpenAIRE

    Veiga-Branco, Augusta

    2011-01-01

    El estudio acede a los comportamientos y actitudes que identifican la Auto- Motivación como variable de competencia emocional (CE) del profesorado. Partiendo del constructo de la inteligencia emocional (Goleman, 1995, 1999), se ha desarohado un Estudio cuantitativo y cualitativo. Método: El primero, sobre las respuestas de una muestra de 464 profesores a la "Escala Veiga Blanco de CE". E el segundo, el cualitativo,, donde emerge una "teoría fundamentada" partiendo de los dis...

  6. La deserción universitaria

    OpenAIRE

    Rugarcía, Armando

    1993-01-01

    Se trata la deserción escolar entendida en un sentido amplio y referida al contexto universitario. Se exponen datos sobre la renuncia de estudiantes en universidades públicas mexicanas y se realiza un desglose de posibles razones y causas por las cuales se deserta. Finalmente, se presentan algunas alternativas para paliar esta problemática. Se incluye obra visual de Cornelio García, reproducida en blanco y negro.

  7. Nature and Use of 100 Major Surinamese Commercial Timbers(Ⅱ)%苏里南主要商用材100种材性和用途(二)

    Institute of Scientific and Technical Information of China (English)

    陈旭东; 章海飞

    2007-01-01

    @@ 5 光毛药树Goupia glabra 卫矛科Celastraceae 毛药树属Goupia 异名:G.tomentosa,G.paraensis 国际贸易名:Cupiuba,Kabukalli,Kopi 产地名:苏里南:Kopie/Goupi;圭亚那:Kabukalli/Goupi;法属圭亚那:Goupi;巴西:Cupiuba/Cachaceiro;委内瑞拉:Congrio blanco/Panaguero

  8. El alma negra del caribe colombiano

    Directory of Open Access Journals (Sweden)

    Cristian Manuel Olivero

    2014-02-01

    Full Text Available Cuando se habla del caribe y de la America Latina, en general suele recurrirse a la formula que dice que somos una mezcla de blancos indios y negros.  otros lugares comunes aparecen enseguida para relacionar lo que se llama el legado europeo, con el idioma, la religion, la economia, la politica lo que en algun gran politico de oficio colombiano llamo lo fundamental al tiempo en la contribucion.

  9. Informe de nuevas variedades LORITA: NUEVO GENOTIPO DE Spathoglottis plicata BLUME (ORCHIDACEAE) OBTENIDO POR MODIFICACIONES OCURRIDAS DURANTE EL CULTIVO In Vitro

    OpenAIRE

    L. Suárez; María M. Hernández; Regla M. Lara

    2009-01-01

    Se muestran las principales características de un nuevo genotipo de orquídea terrestre producido en Cuba por modificaciones ocurridas durante el cultivo in vitro de semillas de Spathoglottis plicata var. Rosa. Lorita presenta sépalos y pétalos de color blanco, principal característica que lo distingue del genotipo donante. Esta nueva especie contribuirá al embellecimiento del entorno y constituye un valioso aporte a la agricultura ornamental cubana.

  10. Desarrollo cognoscitivo y educación

    OpenAIRE

    Ray-Bazán, Antonio

    1992-01-01

    En el marco de la crítica situación de la educación en México, se presenta el enfoque del desarrollo cognoscitivo, y se abunda en aspectos como la mediación; la autorregulación y metacognición; el pensamiento crítico y creativo, y la zona de desarrollo próximo. Se incluyen dos dibujos de Martha Pacheco, reproducidos en blanco y negro.

  11. Esclerosis lateral amiotrófica: ¿es el astrocito la célula primariamente dañada?

    OpenAIRE

    Roberto E. Sica

    2013-01-01

    La esclerosis lateral amiotrófica (ELA) es considerada una enfermedad primaria de las motoneuronas. Ninguno de los procesos que conforman su patogenia ha probado ser su causa. Tampoco pudo demostrarse que factores ambientales la originen. Las neuronas mueren por apoptosis, hecho que abre la posibilidad de que ello sea debido a cambios en su ambiente, sin que constituyan el blanco directo de la noxa que ocasiona la enfermedad. El examen del medio que circunda a las motoneuronas encuentra a los...

  12. Salida de campo a Laguna de Duero (Valladolid) el 14 de junio de 1953 y notas de Riaza (Segovia) de Arturo

    OpenAIRE

    Valverde Gómez, José Antonio, 1926-2003

    2008-01-01

    Salida de campo a Laguna de Duero (Valladolid) el 14 de junio de 1953 y notas de Arturo (de apellidos desconocidos), de Riaza (Segovia), en las que se incluyen las siguientes aves: Buitre (Gyps o Aegypius), Coccothraustes coccothraustes (Picogordo), Luscinia sp. (Ruiseñor), Neophron percnopterus (Alimoche común, también conocido como Buitre blanco), Pyrrhocorax pyrrhocorax (Chova piquirroja) y "Trychodoma". Field trip to Laguna de Duero (Valladolid) the 14th of June of 1953 and notes of Ar...

  13. Cuestiones y problemas de la educación intercultural en Gran Bretaña

    Directory of Open Access Journals (Sweden)

    Jagdish Gundara

    1996-01-01

    Full Text Available El articulo intenta desarrollar los principales problemas de la Educacion Intercultural tal y como se manifiestan en el contexto ingles. Se ponen de manifiesto las contradicciones internas de la Educación Intercultural britanica y se denuncia su inclcctividad tanto para reducir la conducta discriminatoria de los alumnos y profesorcs blancos como para perfeccionar los talentos educativos de algunos grupos de estudiantes pertenecientes a la minoría.

  14. Educación y nuevas tecnologías. Presentación

    OpenAIRE

    Corrales-Díaz, Carlos

    1997-01-01

    Presentación del tema central de la revista, "Educación y nuevas tecnologías", integrado por trabajos multidisciplinarios que estudian y registran los problemas, las lagunas y los retos que la incorporación de nuevas tecnologías origina en las instituciones educativas. Se incluye la reproducción en blanco y negro de obra del artista plástico Waldo Saavedra.

  15. Cuestión de alteridades: la aciaga vida del Tupã guaraní en la literatura de los “blancos” y en la vital versión oral de los mbyá

    Directory of Open Access Journals (Sweden)

    Irma Ruiz

    2009-12-01

    Full Text Available Durante siglos, parte del mundo letrado estuvo atento a las opiniones de los blancos sobre el pensamiento y las acciones de los guaraní ; eran tiempos exclusivos de la antropología sobre el Otro. En la actualidad, se pretende dar cuenta también de la antropología del Otro sobre nosotros. A fin de mostrar ambas caras, en este artículo se confrontan voces autorizadas de blancos que escribieron sobre los guaraní , con otras de los mbyá-guaraní que hablaron sobre su cultura y la de los blancos. El eje escogido es la figura de Tupã , de cuyo nombre se apropiaron los evangelizadores coloniales para construir su discurso monoteísta. En este juego de alteridades, se analiza primero la infausta “vida literaria” del personaje para luego oír voces de los aún damnificados por ese hecho histórico. Esta confrontación, además de revelar inconsistencias prejuiciosas en algunos escritos y estrategias guaraní para proteger su politeísmo, permite apreciar la magnitud de la violencia simbólica ínsita en la evangelización. Palabras clave: Alteridad, Guaraní, Mbyá, Cosmología, Tupã

  16. 椪柑无核优系的细胞学研究%Cytological mechanisms of the elite seedless Ponkan accessions

    Institute of Scientific and Technical Information of China (English)

    张雅菁; 程玉芳; 伊华林

    2016-01-01

    以椪柑无核优系(Citrus reticulate Blanco)及其母本江西靖安有核椪柑(C.reticulate Blanco)、鄂柑1号(C.reticulate Blanco)为材料,从花粉形态、授粉亲和性和合子胚发育等方面研究优系无核机制.结果表明:无核优系花粉母细胞减数分裂异常比例显著高于其母本,花粉粒形态和小孢子母细胞的解剖学结构与母本有明显不同;无核优系自花授粉后的花粉管可以正常抵达花柱基部,自交亲和;无核优系胚胎早期败育,授粉后3周是败育主要时期;无核优系自花或异花授粉都不会产生种籽.无核优系果实无核的主要原因是胚胎早期败育.

  17. Paleoclimatological revision of climate evolution in Spain since the middle pleistocene from travertine and speleothems studies; Aportaciones al conociiento de la evolucion paleoclimatica y paleoambiental en la pensinsula iberica durante los dos ultimos millones de anos a partir del estudio de travertinos y espeleotemas

    Energy Technology Data Exchange (ETDEWEB)

    Torres, T.; Barettino, D.; Canoira, L.; Cobo, R.; Garcia-Cortes, A.; Grun, R.; Hoyos, M.; Julia, R.; Llamas, R.

    1996-10-01

    This paper deals on the main results of the Project: ``Paleoclimatological revision since the Middle Pleistocene from geochronological and isotope analysis of spanish travertine`` (CEC-F12W-CT91-0075 ``Paleoclimatological revision of climate evolution in the Western Mediterranean Region, evaluation of altered scenarios). Four travertine deposition areas and a karstic zone were selected according to their geographical signification. Travertine deposits areas were: Priego and Rio Blanco: fluvial travertine; Banyoles and Rio Blanco: lacustrine deposits; Tolox: Alluvial fan deposits. The Cueva del Reguerillo was the karstic area selected. In spite of travertine and speleothems are warm climate indicators, important paleoenvironmental and palaeoclimatological data were obtained, which are in short: Through geomorphology and dating (palaeomagnetism, U/Th, Electro spin resonance and amino acid racemization analysis) the fluvial history of Priego, Rio Blanco and el Reguerillo cave, where a neotectonic and palaeosismicity phenomena were also dated. The oldest ESR dating method age obtained was of 950ka; and the oldest Priego deposits AARD dated were 750 ka old. Through dating, sedimentology, stable isotope analysis and palinology some aspects of climatic evolution of the Iberian Peninsula were determined. A net correlation found between palinology and stable isotope ratios in the Banyoles lake drill hole, allowed to validate the results. Some cualitative data on fluvial and karstic systems water input were determined also.

  18. Infinite sets and double binds.

    Science.gov (United States)

    Arden, M

    1984-01-01

    There have been many attempts to bring psychoanalytical theory up to date. This paper approaches the problem by discussing the work of Gregory Bateson and Ignacio Matte-Blanco, with particular reference to the use made by these authors of Russell's theory of logical types. Bateson's theory of the double bind and Matte-Blanco's bilogic are both based on concepts of logical typing. It is argued that the two theories can be linked by the idea that neurotic symptoms are based on category errors in thinking. Clinical material is presented from the analysis of a middle-aged woman. The intention is to demonstrate that the process of making interpretations can be thought of as revealing errors in thinking. Changes in the patient's inner world are then seen to be the result of clarifying childhood experiences based on category errors. Matte-Blanco's theory of bilogic and infinite experiences is a re-evaluation of the place of the primary process in mental life. It is suggested that a combination of bilogic and double bind theory provides a possibility of reformulating psychoanalytical theory.

  19. Spatial analysis of the impacts of the Chaitén volcano eruption (Chile) in three fluvial systems

    Science.gov (United States)

    Ulloa, H.; Iroumé, A.; Picco, L.; Mohr, C. H.; Mazzorana, B.; Lenzi, M. A.; Mao, L.

    2016-08-01

    The eruption of the Chaitén volcano in May 2008 generated morphological and ecological disturbances in adjacent river basins, and the magnitude of these disturbances depended on the type of dominant volcanic process affecting each of them. The aim of this study is to analyse the morphological changes in different periods in river segments of the Blanco, El Amarillo and Rayas river basins located near the Chaitén volcano. These basins suffered disturbances of different intensity and spatial distribution caused by tephra fall, dome collapses and pyroclastic density currents that damaged hillslope forests, widened channels and destroyed island and floodplain vegetation. Changes continued to occur in the fluvial systems in the years following the eruption, as a consequence of the geomorphic processes indirectly induced by the eruption. Channel changes were analyzed by comparing remote images of pre and post-eruption conditions. Two periods were considered: the first from 2008 to 2009-2010 associated with the explosive and effusive phases of the eruption and the second that correspond to the post-eruption stage from 2009-2010 to 2013. Following the first phases channel segments widened 91% (38 m/yr), 6% (7 m/yr) and 7% (22 m/yr) for Blanco, Rayas and El Amarillo Rivers, respectively, compared to pre-eruption condition. In the second period, channel segments additionally widened 42% (8 m/yr), 2% (2 m/yr) and 5% (4 m/yr) for Blanco, Rayas and El Amarillo Rivers, respectively. In the Blanco River 62 and 82% of the islands disappeared in the first and second period, respectively, which is 6-8 times higher than in the El Amarillo approximately twice the Rayas. Sinuosity increased after the eruption only in the Blanco River but the three study channels showed a high braiding intensity mainly during the first post-eruption period. The major disturbances occurred during the eruptive and effusive phases of Chaitén volcano, and the intensity of these disturbances reflects the

  20. The region of the Piedra Berroqueña: A potencial Global Heritage Stone Province.

    Science.gov (United States)

    Freire-Lista, David Martin; Fort, Rafael

    2015-04-01

    The Piedra Berroqueña region occupies an area of approximately 4000 km2 in the Sierra de Guadarrama, Spanish Central System, the centre of the Iberian Peninsula. This region has provided most of the building granites used in Madrid and surrounding provinces. Traditional methods of cutting and carving stone have been preserved and it is easy to locate historic quarries in its landscape in addition to mechanized quarries with large reserves of this dimension stone that is exported worldwide in the form of blocks or slabs with different finishes. The Piedra Berroqueña has been used as a building stone since before the Romans. Petrophysical and durability characteristics have allowed to endure monuments as representative as The Royal Monastery of San Lorenzo del Escorial (1563-1584), del Sol Gate (1857-1862), Royal Palace (1738-1764), Alcalá Gate (1770-1778) or Prado Museum (1785-1808) in Madrid, Spain. Also the Piedra Berroqueña is part of most residential buildings and streets of this city, as well as modern buildings around the world, such as airport terminals in Athens, Cork, the British consulate in Hong Kong and headquarters of banks in Jakarta, among others. Piedra Berroqueña province is presented in this abstract, which has many granite quarries with common characteristics such as their grey tones and the presence of darker enclaves "Gabarros or negrones". In the Piedra Berroqueña province four main types of granite can be distinguish: Peraluminous granites; with biotite and occasional cordierite, whose most representative historic quarries are in Alpedrete, Colmenar Viejo, El Boalo, El Berrocal and Collado Mediano. Biotite granites with occasional amphibole are present in historic quarries in El Berrueco, Lozoyuela-Navas-Sieteiglesias and Pelayo de la Presa, among others. Currently exploited in Valdemanco and La Cabrera and marketed under the commercial names of Aurora Blanco, Blanco Berrocal, Crema Champagne, Blanco Castilla, Crema Cabrera, Blanco Perla

  1. ARBOREAL VEGETATION ASPECTS ON A SEASONAL STEPPE SAVANNA REMAINING, IN BARRA DO QUARAÍ, RS STATE, BRAZIL

    Directory of Open Access Journals (Sweden)

    Luciano Farinha Watzlawick

    2014-03-01

    Full Text Available http://dx.doi.org/10.5902/1980509813320The purpose of this study was to evaluate the floristic composition, the horizontal and vertical structures, as well as the spatial distribution patterns of the tree component in a Steppe Savanna Park located at ‘Parque do Espinilho’, in Barra do Quaraí, Rio Grande do Sul state, Brazil. Floristic composition and phyto-sociological analysis were carried out in a four (04 ha permanent plot (40 000 m², where all individuals which circumference (C was ≥ 15.7 cm, measured 30 cm from the ground, were sampled and had their circumference and total height measured. A mean of 145 individuals/ha was found, distributed in 11 species, 10 genera and eight (08 families, with basal area of 4.06 m²/ha. The Shannon Diversity Index (H’ for the tree vegetation was 1.86, and the species with the highest importance values were Prosopis nigra (25.86%, Aspidosperma quebracho-blanco (24.57%, Prosopis affinis (24.30% and Vachellia caven (10.51%, representing 85.26% of the total. The tree vegetation has two strata, the lower one with 93.3% of the trees and the upper one with only 6.7% of total. The species Aspidosperma quebrachoblancodominated with 70.0% of trees in this stratum. Regarding the spatial distribution pattern of thespecies, Aspidosperma quebracho-blanco presented a grouped tendency, whereas the other ones weregrouped. The savannah steppe park studied is mainly characterized by the occurrence of Aspidospermaquebracho-blanco, Prosopis nigra, Prosopis affinis and Vachellia caven, constituting a unique combinationof species in Brazil, presenting question of rarity in terms of species composition and structure.

  2. Timing and duration of hydrothermal activity at the Los Bronces porphyry cluster: an update

    Science.gov (United States)

    Deckart, K.; Silva, W.; Spröhnle, C.; Vela, I.

    2014-06-01

    New geochronological data from the Los Bronces cluster of the Río Blanco-Los Bronces mega-porphyry Cu-Mo district establish a wide range of magmatism, hydrothermal alteration, and mineralization ages, both in terms of areal extent and time. The northern El Plomo and southernmost Los Piches exploration areas contain the oldest barren porphyritic intrusions with U-Pb ages of 10.8 ± 0.1 Ma and 13.4 ± 0.1 Ma, respectively. A hypabyssal barren intrusion adjacent northwesterly to the main pit area yields a slightly younger age of 10.2 ± 0.3 Ma (San Manuel sector, U-Pb), whereas in the Los Bronces (LB) open-pit area, the present day mineral extraction zone, porphyries range from 8.49 to 6.02 Ma (U-Pb). Hydrothermal biotite and sericite ages are up to 0.5 Ma younger but consistent with the cooling of the corresponding intrusion events of each area. Two quartz-molybdenite B-type veins from the LB open pit have Re-Os molybdenite ages of 5.65 ± 0.03 Ma and 5.35 ± 0.03 Ma consistent with published data for the contiguous Río Blanco cluster. The San Manuel exploration area within the Los Bronces cluster, located about 1.5-2 km southeast of the open-pit extraction zone, shows both the oldest hydrothermal biotite (7.70 ± 0.07 Ma; 40Ar/39Ar) and breccia cement molybdenite ages (8.36 ± 0.06 Ma; Re-Os) registered in the entire Río Blanco-Los Bronces district. These are also older than those reported from the El Teniente porphyry Cu(-Mo) deposit, suggesting that mineralization in the late Miocene to early Pliocene porphyry belt of Central Chile commenced 2 Ma before the previously accepted age of 6.3 Ma.

  3. Characterization of DECam focal plane detectors

    Energy Technology Data Exchange (ETDEWEB)

    Diehl, H.Thomas; Angstadt, Robert; Campa, Julia; Cease, Herman; Derylo, Greg; Emes, John H.; Estrada, Juan; Kibik, Donna; Flaugher, Brenna L.; Holland, Steve E.; Jonas, Michelle; /Fermilab /Madrid, CIEMAT /LBL, Berkeley /Argonne /Pennsylvania U.

    2008-06-01

    DECam is a 520 Mpix, 3 square-deg FOV imager being built for the Blanco 4m Telescope at CTIO. This facility instrument will be used for the 'Dark Energy Survey' of the southern galactic cap. DECam has chosen 250 ?m thick CCDs, developed at LBNL, with good QE in the near IR for the focal plane. In this work we present the characterization of these detectors done by the DES team, and compare it to the DECam technical requirements. The results demonstrate that the detectors satisfy the needs for instrument.

  4. Genetic similarity of citrus fresh fruit market cultivars Similaridade genética de cultivares de citros de mesa

    Directory of Open Access Journals (Sweden)

    Roberto Pedroso de Oliveira

    2005-08-01

    Full Text Available The objective of this work was to assess the genetic similarity of the following citrus fresh fruit market seedless cultivars: Lane Late, Navelate, Navelina and Salustiana sweet oranges (Citrus sinensis (L. Osbeck, Clemenules and Marisol mandarins (C. reticulata Blanco and Okitsu satsuma mandarin (C. unshiu Marcovitch, and the hybrids Nova [C. clementina x (C. paradisi x C. tangerina] and Ortanique (tangor probably derived from C. sinensis (L. Osbeck x C. reticulata Blanco, utilizing isoenzymatic markers. Electrophoresis analysis of proteins extracted from leaf tissues was utilized to detect polymorphisms at ten isoenzymatic systems. Out of 30 alleles, 16 were polymorphic. The Jaccard coefficient was utilized to estimate the genetic similarity between the cultivars and the unweigthed pair-group method using an arithmetic average (UPGMA was used to obtain the phenogram (NTSYS 1.7. The cultivars showed high genetic similarity (>72.5%, and were classified in five main groups: sweet oranges, 'Clemenules' and 'Marisol' mandarins, 'Nova', 'Ortanique', and 'Okitsu' satsuma mandarin.O objetivo deste trabalho foi estudar a similaridade genética das seguintes cultivares sem sementes de citros de mesa: laranjas Lane Late, Navelate, Navelina e Salustiana (Citrus sinensis (L. Osbeck, tangerinas Clemenules e Marisol (C. reticulata Blanco, satsuma Okitsu (C. unshiu Marcovitch e híbridos Nova [C. clementina x (C. paradisi x C. tangerina] e Ortanique (tangor provavelmente entre C. sinensis (L. Osbeck e C. reticulata Blanco, por intermédio de marcadores isoenzimáticos. O polimorfismo foi detectado por eletroforese de proteínas extraídas de tecido foliar em 10 sistemas isoenzimáticos. Foram obtidos 30 alelos, sendo 16 polimórficos. O coeficiente de Jaccard foi utilizado para estimar a similaridade genética entre as cultivares e o método UPGMA para gerar o fenograma por meio do NTSYS 1,7. As cultivares apresentaram elevada similaridade genética (>72,5% e

  5. 莽山野生宽皮柑橘分类研究

    Institute of Scientific and Technical Information of China (English)

    李润唐; 张映南; 陈梦龙; 蒋开军

    2009-01-01

    植物学、胞粉学、同工酶分析、核型分析、花粉外壁特征、气孔特征、分子标记观察的结果表明,莽山野柑比莽山野橘原始,柑与橘应各自具有种的地位.建议采用Citrus nobilis Lour作为柑的学名,以莽山野柑为模式标本;橘的学名为 Citrus reticulata Blanco,以莽山野橘作模式标本.

  6. Mecanismo de falla de los tubos del sobrecalentador de una caldera acuotubular

    OpenAIRE

    Coronado Marín, John Jairo

    2010-01-01

    En este artículo se investigaron las causas de las fallas presentadas por fisuración longitudinal a partir de la superficie externa en los tubos del sobrecalentador de una caldera acuotubular. La superficie externa de los tubos presentó una capa de color blanco-rojizo que presentó cadenas parafínicas: C-H, grupos funcionales: C-O, N-H y compuestos de azufre, esta capa frágil impide la transferencia de calor, causando un aumento de temperatura del tubo. La falla se presentó por termofluencia d...

  7. The Genome Sequence of an Isolate of Indian Citrus Ringspot Virus Infecting the Sweet Orange in India

    OpenAIRE

    K, Prabha; Baranwal, V.K.

    2012-01-01

    Whole-genome sequencing of an isolate of Mandarivirus infecting the sweet orange [Citrus sinensis (L) Blanco] in the western part of India (Pune) was done. The single-stranded positive-sense RNA genome of Indian citrus ringspot virus (ICRSV) Pune has 7,560 nucleotides (nt), excluding a poly(A) tail, comprised of 27.98% (2,115 nt) A, 32.12% (2,428 nt) C, 19.68% (1,488 nt) G, and 20.22% (1,529 nt) T residues. The genome, organized into six open reading frames (ORFs), shares 97.7% sequence ident...

  8. Colonial historiography and foundation of the classical pro-independence thesis in Uruguay

    Directory of Open Access Journals (Sweden)

    Tomás Sansón Corbo

    2012-11-01

    Full Text Available Canonical authors of the Uruguayan historiography have identified a set of social, political and geographical factors in the colonial period, that, in their opinion, have caused feelings of autonomist character in the inhabitants of Banda Oriental, that later would turn into pro-independence sentiments. This interpretation, known as the classic pro-independence thesis, had among its most prominent representatives: Francisco Bauzá, Pablo Blanco Acevedo and Juan Pivel Devoto. In this article we intend to analyze the main works of these historians in order to identify in their works, the original characters of Uruguayan official history

  9. The Multiwavelength Survey by Yale-Chile (MUSYC): Wide K-band Imaging, Photometric Catalogs, Clustering and Physical Properties of Galaxies at z~2

    CERN Document Server

    Blanc, Guillermo A; Barrientos, L Felipe; Aguirre, Paula; Francke, Harold; Taylor, Edward N; Quadri, Ryan; Marchesini, Danilo; Infante, Leopoldo; Gawiser, Eric; Hall, Patrick B; Willis, Jon P; Herrera, David; Maza, José

    2008-01-01

    We present K-band imaging of two ~30'x30' fields covered by the MUSYC Wide NIR Survey. The 1030 and 1255 fields were imaged with ISPI on the 4m Blanco telescope at CTIO to a 5 sigma point-source limiting depth of K~20 (Vega). Combining this data with the MUSYC Optical UBVRIz imaging, we created multi-band K-selected source catalogs for both fields. These catalogs, together with the MUSYC K-band catalog of the ECDF-S field, were used to select K1L* galaxies.

  10. Book Reviews

    OpenAIRE

    Christien Klaufus, Book Review Editor

    2016-01-01

    The Improbable Conquest: Sixteenth Century Letters from the Rio de la Plata, por Pablo García Loaeza y Victoria L. Garrett, 2015; reseñado por Judith Farberman Urban Space as Heritage in Late Colonial Cuba: Classicism and Dissonance on the Plaza de Armas of Havana: 1754-1828, by Paul Niell, 2015; reviewed by Joseph L. Scarpaci El Jefe Político. Un dominio negociando en el mundo rural del Estado de México. 1856-1911, por Romana Falcón, 2015; reseñado por Raymond Buve Miedo negro, poder blanco ...

  11. EFECTO DE Tropaeolum tuberosum FRENTE A LA HIPERPLASIA PROSTÁTICA BENIGNA INDUCIDA EN RATAS HOLTZMAN

    OpenAIRE

    Gioliana Aire-Artezano; Roma Charaja-Vildoso; Helen De La Cruz-Santiago; Beatriz Guillermo-Sánchez; María Gutarra-Vela; Pamela Huamaní-Charagua; Gricel Jesús Chilquillo; Minorka Nicho-Póvez; Madelaine Ochoa-Gago; Rosa Pari-Ñaña

    2013-01-01

    Objetivo: Evaluar el efecto de Tropaeolum tuberosum(mashua) frente a la Hiperplasia Prostática Benigna (HPB) y compararlo con finasterida. Métodos: Estudio experimental completo. Se emplearon 30 ratas Holtzman macho de 12 semanas de edad, aleatorizadas y divididas en seis gru- pos: grupo blanco; grupo testosterona; grupo finasterida (0.33mg/kg/rata); y tres grupos dosis, dosis 1 (300mg/kg/rata), dosis 2 (500mg/kg/rata) y dosis 3 (800mg/kg/rata) tratados con Tropaeolum tuberosum. Se realizó un...

  12. La inútil añoranza de la normalidad

    Directory of Open Access Journals (Sweden)

    Margarita Valencia

    2014-02-01

    Full Text Available Litchis de Madagascar. Aquiles Cuervo. Editorial Elfin de la noche. Buenos Aires, 2011, 91 págs. El ruido de las cosas al caer. Juan Gabriel Vásquez. Premio Alfaguara de novela 2011. Alfaguara. Bogotá. 2011, 259 págs. Tres ataúdes blancos. Antonio Ungar. Premio Herralde de Novela. Editorial Anagrama. Barcelona. 2010, 259 págs. Suicídame. Andrés Arias. Ediciones B. Bogotá, 2010, 261 págs. C.M. no récord. Juan Álvarez. Alfaguara. Bogotá, 2010, 262 págs.

  13. Las computadoras inteligentes

    OpenAIRE

    Lara-Rojo, Fernando

    1991-01-01

    Se habla de la inteligencia artificial como un campo de la ciencia de computación que tiene por objetivo construir computadoras capaces de hacerse cargo de tareas para cuya realización se supone que es necesario contar con cierto grado de “inteligencia”. Se explora el panorama tecnológico y de investigación, y se plantean algunas de las dificultades a enfrentar. Incluye obra fotográfica de Durruty de alba, Rigo Moreno y Pablo Araiza, reproducida en blanco y negro.

  14. PREPARATIVE ISOLATION AND PURIFICATION OF FIVE FLAVONOIDS FROM POGOSTEMON CABLIN BENTH BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY AND PREPARATIVE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY

    OpenAIRE

    Li, Kang; Zhang, Hongwu; Xie, Huichun; Liang, Yong; Wang, Xiaohong; Ito, Yoichiro

    2011-01-01

    High-speed countercurrent chromatography (HSCCC) and preparative high-performance liquid chromatography (prep-HPLC) were successively used for the separation of pogostone and four flavonoids from Pogostemon cablin (Blanco) Benth. An efficient HSCCC separation was achieved on a two-phase solvent system composed of n-hexane–ethyl acetate–methanol–water (11:5:11:5, v/v/v/v). Three well-separated peaks were obtained in the HSCCC chromatogram. The first and the second fractions each contained two ...

  15. Diversidade de moscas-das-frutas em pomares de citros no município de Araruama, RJ Diversity of fruit flies in citrus groves in the municipality of Araruama, RJ

    OpenAIRE

    Jorge Ferreira de Souza; Silvana Aparecida da Silva Souza; Elen de Lima Aguiar-Menezes; Fernando Antônio Abrantes Ferrara; Stenilson Araújo Nascimento; William Costa Rodrigues; Paulo César Rodrigues Cassino

    2008-01-01

    O objetivo deste estudo foi determinar as espécies de Tephritidae e Lonchaeidae (Diptera: Tephritoidea) de ocorrência em pomares de laranja doce (Citrus sinensis Osbeck) e tangerina (Citrus reticulata Blanco), no município de Araruama, RJ, durante o período de dezembro de 2002 a novembro de 2003. Os espécimes foram coletados em armadilhas McPhail contendo solução aquosa de proteína hidrolisada a 5% e em amostras de frutos de seis variedades de citros. Nas armadilhas, o total de 2.543 adultos ...

  16. Desarrollo y validación de un inmunoensayo para la detección de la leptina caprina

    OpenAIRE

    J Campuzano-Granados; AJ Vallecillo-Maza; M Sierra-García; E Rodríguez-Fores; C Parada-Colin; Espitia, C; G Perera-Marín; IE Candanosa-Aranda

    2015-01-01

    La leptina es una hormona proteica sintetizada y secretada por los adipocitos blancos, que controla varios procesos metabólicos, balance energético, fertilidad, inflamación y angiogénesis. Este estudio muestra el desarrollo y validación de un sistema de inmunodiagnóstico (ELISA) usando la leptina de cabra recombinante generada en Escherichia coli, a partir de esta se generó su correspondiente anticuerpo policlonal en conejos. Previo al desarrollo del sistema se demostró por inmunohistoquímica...

  17. La reacción inflamatoria en la fisiopatogenia de la obesidad

    OpenAIRE

    Ma Victoria Domínguez García; Gerardo Gabriel Huitrón Bravo; Anaí A. Mendoza López

    2012-01-01

    La obesidad se caracteriza por inflamación crónica. Entre los biomarcadores de inflamación encontramos las citocinas producidas por los adipocitos y los macrófagos: TNF - a, IL - 6, leptina, adiponectina y resistina. La relación adipocito-macrófago impacta la respuesta inflamatoria observada en la obesidad, la cual tiene una relación directa con la cantidad de macrófagos acumulados en el tejido adiposo blanco, que contribuye a la producción de mediadores de la inflamación. En este documento s...

  18. Bibliografía

    OpenAIRE

    2013-01-01

    Aceves Lozano, Jorge E. (1985), “Formas de organización económica del sector campesino en Monte Blanco, Veracruz”, Seminario sobre la historia de la agricultura en la región central del estado de Veracruz, Xalapa, Laboratorio de Investigación y Desarrollo regiónal, inireb. Adams, Richard N. (1983), Energiay estructura. Una teoría del poder social, México, fce. Aguilera Reyes, Shamara (2004), “Desarrollo, población y uso de los recursos naturales en el Valle de Uxpanapa”, tesis de licenciatura...

  19. Papel de las células madre oncogénicas en la resistencia terapéutica de tumores de mama

    OpenAIRE

    Marco A. Velasco Velázquez; Marisol de la Fuente Granada

    2009-01-01

    Las células madre oncogénicas constituyen una subpoblación de células tumorales que tienen la capacidad de auto-renovarse y de generar tumores heterogéneos en animales de experimentación. Estudios recientes han demostrado que las células madres oncogénicas juegan un papel central en la tumorigénesis, la progresión tumoral y la sensibilidad al tratamiento, lo que las convierte en blancos muy prometedores para el desarrollo de nuevas terapias antineoplásicas. En el caso particular del cáncer de...

  20. Sistema de rastreo tridimensional de micro-partículas : aplicación en el rastreo de espermatozoides al nado libre /

    OpenAIRE

    Pimentel Cabrera, Jaime Arturo

    2013-01-01

     tesis que para obtener el grado de Doctorado en Ciencia e Ingeniería de la Computación, presenta Jaime Arturo Pimentel Cabrera ; tutor principal de tesis Gabriel Isaac Corkidi Blanco. 120 páginas : ilustraciones. Doctorado en Ciencia e Ingeniería de la Computación Universidad Nacional Autónoma de México, 2013 Posgrado en Ciencia e Ingeniería de la Computación

  1. Doble fantasía: forma y color en la arquitectura : La Plata, 1955-1965

    OpenAIRE

    Gandolfi, Fernando; Gentile, Eduardo César

    2005-01-01

    Durante la segunda postguerra, temporalmente desplazada la arquitectura europea como principal referente y bajo el influjo de las imágenes del american way of life difundidas a través de distintos medios desde los EEUU, se intentó en Argentina la construcción de una nueva modernidad arquitectónica. Su supuesto carácter de punto de inflexión entre el racionalismo blanco emergente en los '30 y el ecléctico experimentalismo que se extendió desde mediados de la década de 1960 hasta finales de los...

  2. Texturas, inclusiones fluidas e isótopos estables envetas tensionales cuarzo-auríferas de cizallas paleozoicas, Sierras Pampeanas Orientales

    Directory of Open Access Journals (Sweden)

    Diana Mutti

    2009-06-01

    Full Text Available En las Sierras Pampeanasafloran prominentes zonas de cizalla famatinianas con deformación dúctil adúctil frágil y edad ordovícica tardía - silúrica. Estas cizallas fueronreactivadas durante el Devónico - Carbonífero inferior por la sobreimposiciónde la orogenia achaliana, en un ambiente reológico dúctil - frágil, que en suetapa final evolucionó al campo frágil. Sincrónicamente, y con posterioridad almagmatismo devónico achaliano, se desarrollaron en las cizallas sistemas devetas tensionales, rellenas con cuarzo blanco1, blanco a gristraslúcido2, gris3 y calcedónico4, conmineralización de oro, óxidos de W - Fe - Bi y sulfuros de metales base. En lossistemas de vetas, la depositación de oro predominó en el estadio3, enel cual precipitaron también los sulfuros de metales base (< 15 % envolumen, dispuestos en cadena y diseminaciones dentro de un agregadomicrogranoso de cuarzo gris. Esta variedad de cuarzo se depositó en venillas ybandas, vinculadas con sitios de deformación en el cuarzo blanco lechoso y gristraslúcido, y determinó texturas laminadas, en ribbon y brechosa,principalmente. Este trabajo se focaliza en el estudio del cuarzo gris3,mediante estudios meso y microestructurales, termobarométricos a partir deinclusiones fluidas e isotópicos de δ18O, complementándose condatos provenientes de las variedades de cuarzo blanco1, calcedónico4y rocas metamórficas e ígneas del basamento. Los resultados señalan laexistencia de inclusiones bifásicas y trifásicas, temperaturas dehomogeneización en torno a ~ 278°C, bajas salinidades (< 5,22 %e.p. NaCleq,subpresión de fluidos (Pint < Pconf, y fluidos hidrotermales derivados defuentes magmáticas y/o metamórficas. Las condiciones de formación para elestadio3, son consistentes con un proceso de deformación,neomineralización y relleno de fracturas tensionales, en condiciones reológicasfrágiles e interacción de los fluidos con las rocas del basamento, durante

  3. Desarrollo de un simulador de un SAR para misiones espaciales

    OpenAIRE

    Flores de la Cruz, Adrián

    2014-01-01

    El descubrimiento, de los sistemas SAR (Synthetic Aperture Radar o Radares de apertura sintética), lógicamente, tuvo lugar con posterioridad al desarrollo y operación de sistemas básicos de radar más sencillos como fueron los terrestres (para detección de blancos en movimiento) y los embarcados en aeronaves (para mapeo del terreno). En la actualidad, los modernos sistemas radar (tipo SAR), ya son embarcados en satélites (artificiales) para aplicaciones de observación, tanto de la Tierra co...

  4. Evaluación genética de cruzamientos de ganado Brahman para características de crecimiento y medidas de ultrasonido en la microrregión del Sur del Cesar / Genetic evaluation of Brahman cattle crossbreds for growth and ultrasound-measured traits in the microregion of Southern Cesar

    OpenAIRE

    Martínez Niño, Carlos Alberto

    2011-01-01

    En el presente estudio se obtuvieron estimadores de efectos de raza, heterosis, componentes de (co)varianza, parámetros genéticos y predicciones de valores genéticos para pesajes y medidas ultrasónicas de canal (repetidas en el tiempo) en una población multirracial bovina. La población se obtuvo mediante el apareamiento aleatorio de 37 toros de 9 razas (Brahman Gris, Brahman Rojo, Guzerat, Blanco Orejinegro, Romosinuano, Simmental, Braunvieh, Normando y Limousin) con hembras Br...

  5. Diferencias en el perfil psicológico y en la conducta alimentaria de madres de mujeres con y sin trastornos alimentarios /

    OpenAIRE

    Vazquez Velazquez, Veronica

    2012-01-01

     tesis que para obtener el grado de Doctorado en Psicología, presenta Verónica Vázquez Velázquez ; tutores principales de tesis Lucy María Reidl Martínez, Gilda Libia Gómez Pérez Mitré, Juan Pablo Méndez Blanco, Martha Kaufer Horwitz, Teresita de Jesús Saucedo Molina177 páginas : ilustracionesDoctorado en Psicología Universidad Nacional Autónoma de México, 2012 Programa de Posgrado en Psicología

  6. Mirar madres: Adriana Lestido: espacios, rostros, afectos

    OpenAIRE

    Nora Domínguez

    2010-01-01

    Este trabajo analiza parte de la obra de la fotógrafa argentina Adriana Lestido, cuya producción iniciada en los años 90 explora espacios institucionales y familiares de lo materno. Sus trabajos con mujeres presas, madres adolescentes o sobre las relaciones entre madres e hijas apuntan a una resignificación de estos vínculos a través de imágenes en blanco y negro que funcionan como centros de irradiación estética y afectiva. Por medio de los recursos de desaparición y acercamiento, separación...

  7. Los efectos nocivos del cigarrillo en la mujer

    OpenAIRE

    Morales Cañedo, Carmen Regina

    1996-01-01

    A la mujer se le atribuye un papel ejemplar y educativo en la familia y la sociedad, razón por la cual su conducta adquiere especial importancia. Desafortunadamente, se está convirtiendo en el blanco de la publicidad del cigarrillo. Por ello cada uno de nosotras(os) tiene el deber de contribuir en la disminución del tabaquismo a nivel mundial, tanto en hombres como en mujeres. Anteriormente el único motivo serio de preocupación para la mujer fumadora era el cáncer de pulmón. En la actualidad,...

  8. Soberanía

    OpenAIRE

    Turegano Mansilla, Maria Isabel

    2013-01-01

    El concepto de soberanía siempre se ha vinculado con el contexto en el que surgió para dar cuenta de la idea de poder en la realidad político-jurídica moderna. Su asociación con un modelo de actuación pública territorializada, autointeresada y autosuficiente lo han convertido en un instrumento de posiciones proteccionistas e identitarias y blanco de las críticas internacionalistas y pluralistas. Pero el concepto no ha tenido un contenido estable y ha sido reinterpretado constan...

  9. Diagnóstico comparativo del test TIDA con otros test de detección de anomalías de la visión del color en una población infantil

    OpenAIRE

    Rubio Serna, José Manuel

    2013-01-01

    La percepción del color enriquece nuestra experiencia visual y nos permite distinguir objetos y escenas que de otra forma no podríamos distinguir con claridad. Una misma imagen nos parecería absolutamente distinta si la percibiésemos en blanco y negro en vez de hacerlo en color. Por tanto, la percepción del color es importante para nuestra vida, pero no imprescindible, como queda patente por el hecho de que aproximadamente el diez por ciento de la población masculina padece alguna forma de di...

  10. Studies on the differentiation inducers of myeloid leukemic cells from Citrus species.

    Science.gov (United States)

    Sugiyama, S; Umehara, K; Kuroyanagi, M; Ueno, A; Taki, T

    1993-04-01

    An attempt was made to isolate differentiation inducers from Aurantii Nobilis Pericarpium and the fruit peel of Citrus reticulata Blanco (Rutaceae). Twenty-seven kinds of flavones, including five new flavones, were isolated after repeated chromatography from methanol extracts of these plants and their structures were established, from their physicochemical data, to be highly methoxylated flavones. Each compound, except for two flavone glucosides, showed the differentiation inducing activity toward mouse myeloid leukemia cells (M1), and the cells came to have phagocytic activity. Furthermore, differentiation inducing activity was tested using human acute promyelocytic leukemia cell line (HL-60). PMID:8508474

  11. 中外运古巴机车项目发运仪式在津举行

    Institute of Scientific and Technical Information of China (English)

    高于萍

    2005-01-01

    近日.由中外运承运的古巴机车项目发运仪式在天津新港港口隆重举行.古巴驻中国ALBERTO BLANCO SILVA公使一行.中国家用电器进出口公司中国北车集团北京二七机车厂.中国外运的相美领导出席了此次机车的发运仪式.

  12. 陈皮中挥发性成分的超声雾化顶空单滴微萃取

    Institute of Scientific and Technical Information of China (English)

    张慧慧; 王璐; 李雪源; 王英华

    2009-01-01

    @@ 陈皮为常用传统中药之一,为芸香科植物橘(Citrus reliculata Blanco)及其栽培变种的干燥成熟果皮,具有理气健脾,燥湿化痰作用~([1]).陈皮挥发油成分主要产生其药理作用,挥发油的主要成分具有抗氧化性,可做为功能性因子加入到食品中,制成具有抗自由基的功能性食品.

  13. 大事记

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    <正>1977年6月27日,在马德里南部工人区比亚危拉地,已有3个孩子的佩德罗再得一子,继哥哥佩德洛·冈萨雷斯·布兰科、大姐玛丽莎·冈萨雷斯·布兰科、二姐阿莱罕德拉·冈萨雷斯·布兰科之后,取名劳尔·冈萨雷斯·布兰科(Raul Gonzalez Blanco)。

  14. Distributions, Problems and Their Management Countermeasures of Vatica mangachapoi Forest Ecosystem in Hainan%海南青梅林生态系统的分布规律、存在问题与管理对策

    Institute of Scientific and Technical Information of China (English)

    陈伟; 蒋菊生; 兰国玉

    2006-01-01

    青梅(Vatica mangachapoi Blanco),是亚洲热带雨林的典型树种,也是海南岛热带雨林的优势种,它在海南热带雨林生态系统中地位及其重要.作者论述了海南青梅林生态系统的类型和分布,分析了海南青梅林目前存在的问题,并提出了管理对策.

  15. 古巴驻华大使白诗德谈古巴经济模式更新

    Institute of Scientific and Technical Information of China (English)

    刘维广

    2011-01-01

    2011年11月15日,古巴驻华大使白诗德( Alberto Jesús Blanco Silva)先生访问中国社会科学院拉丁美洲研究所,并作了题为"古巴经济模式更新"的学术报告,拉美所所长郑秉文、副所长吴白乙和王立峰以及拉美所科研人员共约20余位学者参加了座谈.

  16. 柚皮苷在口腔护理用品中的应用研究

    Institute of Scientific and Technical Information of China (English)

    覃青云; 卢凯玲; 许静; 韦宝韩; 黄晓燕

    2009-01-01

    柚皮苷是广泛存在于芸香科柑橘属(Citrusreticulata Blanco)类水果中的一种双氢黄酮类化合物,具有抗癌、抑茵、抑酶、抗氧化等生理活性.本文从消炎、止血及毒理方面的药理实验,进行了柚皮苷在口腔护理用品中的应用研究.

  17. 陈皮有效成分在呼吸系统中的作用研究

    Institute of Scientific and Technical Information of China (English)

    文高艳; 周贤梅

    2011-01-01

    @@ 陈皮来源于芸香料植物橘(Citrus reticulate Blanco)及其栽培变种的成熟果皮,具有"理气健脾,燥湿化痰"的功效,主要用于治疗消化系统和呼吸系统疾病,为食管、胃十二指肠等消化道疾病最常用的药物,主要含挥发油、黄酮类及生物碱等成分.

  18. Reseñas de Libros

    OpenAIRE

    Daniel Alcalde Güelfo; Mª Candelaria Fuentes Navarro; Karl J. Trybus; Flavia Pascariello; Alfonso Pinilla García; David Molina Rabadán; Jan Nelis; José Joaquín Fernández Alles; Antonio J. Piqueres Díez

    2009-01-01

    Achcar, Gilbert, El choque de barbaries, terrorismo y desorden mundial. Barcelona, Icaria-Antrazyt, 2007, 197 pp.Páginas 213-214Daniel Alcalde GüelfoDel Arco Blanco, Miguel Ángel, Hambre de Siglos. Mundo rural y apoyos sociales del franquismo en Andalucía Oriental (1936-1951). Granada, Comares Historia, 2007, 513 pp.Páginas 214-217Mª Candelaria Fuentes NavarroBen-Ghiat, Ruth; Fuller, Mia (eds.), Italian Colonialism. New York, Palgrave MacMillan, 2005, 266 pp.Páginas 217-219Karl J. TrybusBlack...

  19. Sujeto y comunidad; voz, isla y muerte en la narrativa cubana del siglo XXI

    OpenAIRE

    Timmer, Nanne

    2015-01-01

    Este artículo explora cómo dos novelas cubanas de 2010 y 2012 tratan el tema del sujeto y de la comunidad. En Desde los blancos manicomios, de Margarita Mateo y en Días de entrenamiento, de Ahmel Echevarría se repiensa la comunidad y se imagina un futuro atravesando los temas de la muerte, el yo, y la isla. La tensión entre sujeto y símbolo nacional es crucial en estas narrativas, y a través de ella se articula la búsqueda de voz, vida y cuerpo en visiones contemporáneas sobre la singularidad...

  20. La ingeniería biomédica

    OpenAIRE

    Luengas, Pablo

    1991-01-01

    En el marco del primer Congreso Nacional de Ingeniería Biomédica que se llevó a cabo en Guadalajara en noviembre de 1991, se explica brevemente qué es la ingeniería biomédica, sus orígenes y su desarrollo en el campo profesional. De igual forma, se dan los antecedentes de esta ingeniería dentro del ITESO. Incluye obra fotográfica de Durruty de Alba, reproducida en blanco y negro.

  1. The largest holocene eruption of the Central Andes found

    OpenAIRE

    Fernandez-Turiel, J. L.; J. Saavedra; Perez-Torrado, J. F.; Rodriguez-Gonzalez, A.; Carracedo, Juan Carlos; Osterrieth, M.; Carrizo, J. I.; Esteban, G.

    2013-01-01

    We present new data and interpretation about a major eruption -spreading 110 km3 ashes over 440.000 km2- long thought to have occurred around 4200 years ago in the Cerro Blanco Volcanic Complex (CBVC) in NW Argentina. This eruption may be the biggest during the past five millennia in the Central Volcanic Zone of the Andes, and possibly one of the largest Holocene eruptions in the world. The environmental effects of this voluminous eruption are still noticeable, as evidenced by the high conte...

  2. Genetic polymorphisms and racial groups in the population of Pinar del Rio province (Cuba

    Directory of Open Access Journals (Sweden)

    Díaz Narváez, Víctor P.

    2002-01-01

    Full Text Available Se estudió el polimorfismo genético de 13 marcadores genéticos en tres grupos raciales (blancos, mulatos y negros en la provincia de Pinar del Río (Cuba. Se encontraron diferencias fenotípicas en 8 de los 13 marcadores estudiados. Las diferencias de las frecuencias alélicas encontradas en los marcadores fueron altamente significativas entre los grupos raciales examinados. Los loci estudiados permitieron mostrar claras diferencias de un grupo racial respecto de los otros. Los hallazgos obtenidos permiten confirmar la hipótesis de que la población estudiada no es homogénea.

  3. La importancia del desarrollo de la formación docente en la reforma curricular del proceso de descentralización educativa en Venezuela

    OpenAIRE

    María Valbuena; Roselia Morillo; Doris Salas de Molina

    2004-01-01

    El presente artículo plantea una reflexión teórica acerca del desarrollo de la formación docente y la descentralización en Venezuela, abarcando desde el gobierno de Guzmán Blanco en 1870 hasta el 2000, a través de distintos decretos y resoluciones que destacan la importancia de la formación docente como elemento esencial para la transformación del sistema educativo con un alto nivel de calidad y equidad social empleando la descentralización como una estrategia que conlleve a la formación del ...

  4. Siguiendo sus pasos: Explorando el activismo sociopolítico de los puertorriqueños en Nueva York desde una perspectiva Afrocéntrica.

    OpenAIRE

    Milagros Denis-Rosario

    2013-01-01

    Muchos estudios destacan que los puertorriqueños no encajan en la definición racial americana de "negro o blanco", y que debido a esta "singularidad" la experiencia racial puertorriqueña se debe medir de manera diferente. Este trabajo evalúa las actividades de puertorriqueños negros que llegaron y establecieron en Nueva York y quienes a pesar de enfrentar problemas de adaptación, racismo y pobreza persistente, forjaron una identidad la cual resuena con la experiencia y perspectiva de Arturo S...

  5. Estudio de las funciones biológicas de S-Resistina.

    OpenAIRE

    Rodríguez Pérez, María

    2014-01-01

    S-resistina es una isoforma no secretada de resistina generada por splicing alternativo en tejido adiposo blanco de ratas Wistar que presenta localización preferentemente nuclear. Al analizar la presencia de esta isoforma en diferentes tejidos, comprobamos que se expresa igualmente de forma abundante en hipotálamo. Con el fin de estudiar las funciones biológicas de s-resistina en este trabajo se plantearon dos estrategias diferentes. Por un lado, se llevaron a cabo experimentos in vitro,...

  6. Aspectos farmacológicos en el manejo reproductivo de la perra. Revisión bibliográfica

    OpenAIRE

    J. Echeverría

    2005-01-01

    La fisiología de la reproducción ha experimentado en los últimos años grandes adelantos. La profundización en el conocimiento de los mecanismos íntimos de acción de las hormonas sexuales, desde su llegada al tejido blanco hasta el desencadenamiento de la serie de eventos moleculares que configuran una respuesta efectiva, ha dado por resultado un mejor acercamiento en lo que respecta a diferentes aspectos terapéuticos. Por su naturaleza, el estudio de la reproducción requiere un entendimiento ...

  7. Hipogonadismo masculino: Causas, genética, diagnóstico y tratamiento

    OpenAIRE

    William Jubiz; Eduardo Antonio Cruz

    2007-01-01

    El hipogonadismo masculino representa una disminución de la función testicular, con una baja producción de testosterona e infertilidad. El hipogonadismo puede deberse a un problema intrínseco de los testículos (primario), a una falla del eje hipotálamo-hipófisis (secundario) o a una respuesta disminuida o ausente de los órganos blanco a los andrógenos (resistencia androgénica). Los síntomas del hipogonadismo incluyen la caída del vello corporal, disminución de la función sexual y cambios en l...

  8. Auto y heteroestereotipo étnico en estudiantes preuniversitarios de Lima Metropolitana

    Directory of Open Access Journals (Sweden)

    Carmen Zornoza

    1986-12-01

    Full Text Available La autora revisa algunas de las investigaciones hechas en el Perú acerca de la influencia de factores étnicos. Luego expone los resultados de una investigación acerca de auto y hetero estereotipos en grupos raciales diferentes.  Queda demostrado que el auto estereotipo de los blancos es más alto que el de los mestizos y que el hetero estereotipo de estos últimos es más alto que el de los primeros.

  9. El concepto de personas jurídicas penalmente responsables

    OpenAIRE

    Miras Marín, Norberto

    2010-01-01

    La entrada en vigor de la Ley Orgánica 5/2010, de 22 de Junio reformó el Código Penal introduciendo la responsabilidad penal de las personas jurídicas. Este estudio trata exhaustivamente, como concepto penal en blanco, el concepto de persona jurídica, y discute la idoneidad de la utilización de la persona jurídica por parte del legislador como entidad colectiva penalmente responsable. Así, eneste artículo se muestra como el Common Law y la ley austriaca sobre responsabilidad de las agrupacion...

  10. ¿Buenas razones para quemar libros? Un estudio exploratorio sobre la quema de bibliotecas barriales en Francia

    Directory of Open Access Journals (Sweden)

    Denis Merklen

    2010-07-01

    Full Text Available El trabajo se concentra en la conflictividad social de jovenes de sectores populares en las afueras de París. El texto analiza la quema de bibliotecas en los suburbios parisinos tratando de aportar claves para la comprensión de los hechos. Tratando de iluminar, por un lado, por qué un disturbio anti-policial tiene como blanco las bibliotecas populares y por otro, como esas acciones constituyen un choque político cultural de diferentes sectores sociales, alrededor de los diferentes usos de bienes culturales.

  11. Estudio del mecanismo de opacificación de un recubrimiento cerámico

    OpenAIRE

    Cardona Restrepo, Lorena

    2013-01-01

    Resumen: Un engobe es un recubrimiento cerámico que se aplica comúnmente sobre las baldosas y precede la aplicación del esmalte. Los engobes deben ser opacos y blancos con el fin de uniformar y con frecuencia, cubrir el tono del soporte arcilloso. Comprender el fenómeno de la opacidad en estos recubrimientos implica considerar la interacción de la luz con las partículas que se encuentran inmersas en la matriz. En el presente trabajo se estudió el mecanismo de opacificación en un engobe a la l...

  12. Capítulo 1. Historias

    OpenAIRE

    Combès, Isabelle

    2015-01-01

    Nunca podremos comprender el “hecho” que sucedió “realmente” o las condiciones que han sido las de la “verdadera” vida de tal época, porque nos aproximamos a ellos a través de una pantalla deformante: las “fuentes” que hablan. (....) El punto de vista sobre el pasado, la manipulación de la memoria por todos aquellos que se consagran sucesivamente a narrar el pasado, nunca es inocente (Duby, 1988: 77-78) La batalla de Kuruyuki, que enfrentó por última vez a chiriguanos y blancos en el Chaco bo...

  13. Respuesta neuronal a la lesión selectiva de células diana en el mamífero adulto

    OpenAIRE

    Rodríguez de la Cruz, Rosa María

    1992-01-01

    Los objetivos del presente trabajo se resumen en los puntos siguientes: a) Elegir un sistema de proyección sobre su blanco neuronal altamente específico. Las neuronas internucleares del núcleo del motor ocular externo constituyeron un buen modelo para cubrir este objetivo. Estas neuronas proyectan extensivamente sobre las motoneuronas del recto interno, en el núcleo del motor ocular común contralateral. Sólo una proporción pequeña (30%) de las neuronas internucleares emiten colaterales hacia...

  14. Satisfacción del paciente de cirugía mayor ambulatoria con los ciudadanos anestésicos perioperatorios en relación con el miedo

    OpenAIRE

    Baraza Saz, María Aurora

    2010-01-01

    Eliminadas las páginas en blanco del pdf Programa de doctorado: Avances en medicina interna. El objetivo principal de esta investigación es comprobar la relación entre ansiedad y miedo a la anestesia en pacientes sometidos a colecistectomía laparoscópica en régimen ambulatorio. Mediante un diseño prospectivo simple, se analizó el perfil de ansiedad y miedo a la anestesia en las fases pre- y post-anestésica, en 2 grupos de pacientes. Grupo experimental (n=148), pacientes quirúrgicos ...

  15. Participación sociocultural y desarrollo del pensamiento

    OpenAIRE

    Mejía-Arauz, Rebeca

    1997-01-01

    El artículo presenta una recopilación de experiencias de estudio e investigación de la participación sociocultural como medio de desarrollo de procesos de pensamiento. El trabajo se fundamenta en una perspectiva de investigación de la dinámica sociocultural cognoscitiva, que trata de evidenciar la relación estrecha entre los procesos socioculturales cotidianos y el desarrollo de procesos cognoscitivos para incidir en ellos. Se incluye obra del pintor Dale Kaplan reproducida en blanco y negro....

  16. Análisis econométrico de la efectividad del Tercer Programa Europeo de Seguridad Vial (ERSAP)

    OpenAIRE

    Castillo Manzano, José I.; Castro Nuño, Mercedes; Fageda, Xavier, 1975-

    2013-01-01

    El Libro Blanco Europeo publicado en 2001 (titulado “La hora de la verdad”), y su desarrollo en el Tercer Programa de Acción Europeo de Seguridad Vial (ERSAP) (2003-2010), representan claramente un punto de inflexión en la historia de la Política Europea Común de Seguridad Vial. Por primera vez, se incluían objetivos cuantitativos y medibles en términos de siniestralidad vial. Tras un análisis de los principales aspectos de esta política de la UE, se ha aplicado la metodología de Datos de Pan...

  17. De encuentros especulares, sueños y visiones en A demanda do Santo Graal gallegoportuguesa: algunas consideraciones

    Directory of Open Access Journals (Sweden)

    Contreras Martín, Antonio

    2010-12-01

    Full Text Available The purpose of this paper is to analise the ‘specular encounters’, the dreams and the visions in A Demanda do Santo Graal, focusing especially on Erec, Galahad, Perceval and Elayne the White, and to offer an interpretation of these.El propósito del presente trabajo es el análisis de los ‘encuentros especulares’, los sueños y las visiones de A Demanda do Santo Graal, centrados, especialmente, en Erec, Galaz, Perceval y Helaín el Blanco, y ofrecer de ellos una interpretación.

  18. Modificación del esqueleto peptídico de fragmentos de la proteína msp-1 del plasmodium falciparum: síntesis en fase sólida de pseudopéptidos amida reducida

    OpenAIRE

    José Manuel Lozano; Luz Mary Salazar; Carlos Parra; Nubia Barrera; Fanny Guzmán; José Libardo Torres Castellanos; Manuel Elkin Patarroyo

    2008-01-01

    Los estadios asexuales sanguíneos del Plasmodium falciparum constituyen un blanco natural para el desarrollo de vacunas antimaláricas debido a la gran cantidad de antígenos expresados en su superficie que están implicados en el proceso de invasión del parásito a glóbulos rojos, desencadenando la enfermedaden el hospedero humano. Uno de estos antígenos es la proteína de superficie del merozoito MSP-1, una glicoproteína de 19...

  19. Modificación del esqueleto peptídico de fragmentos de la proteína msp-1 del

    OpenAIRE

    José Manuel Lozano; Luz Mary Salazar; Carlos Parra; Nubia Barrera; Fanny Guzmán; José Libardo Torres-castellanos; Manuel Elkín Patarroyo

    2010-01-01

    Los estadios asexuales sanguíneos del Plasmodium falciparum constituyen un blanco natural para el desarrollo de vacunas antimaláricas debido a la gran cantidad de antígenos expresados en su superficie que están implicados en el proceso de invasión del parásito a glóbulos rojos, desencadenando la enfermedad en el hospedero humano. Uno de estos antígenos es la proteína de superficie del merozoito MSP-I, una glicoproteína de 195 kDa en su forma madura. Recientemente se identificaron los pé...

  20. The Outer Envelopes of Globular Clusters. I. NGC 7089 (M2)

    OpenAIRE

    Kuzma, P. B.; Da Costa, G. S.; Mackey, A. D.; Roderick, T. A.

    2016-01-01

    We present the results of a wide-field imaging survey of the periphery of the Milky Way globular cluster NGC 7089 (M2). Data were obtained with MegaCam on the Magellan Clay Telescope, and the Dark Energy Camera on the Blanco Telescope. We find that M2 is embedded in a diffuse stellar envelope extending to a radial distance of at least $\\sim 60^{\\prime}$ ($\\sim 210$ pc) -- five times the nominal tidal radius of the cluster. The envelope appears nearly circular in shape, has a radial density de...

  1. Petroglyphs Peintures rupestres

    Directory of Open Access Journals (Sweden)

    Catharine Savage Brosman

    2007-01-01

    Full Text Available EnglishThey are not merely symbols—rather, thingsthemselves, their soul, their very essence carvedinto the stone, because the world was seenas an embodiment, its being heldin effigy: a parrot poised for flight,the canyon of Penasco Blanco, sunincised in radiance on the wall, with moonand star, nine-pointed, on an overhang;and one presiding hand, an astral print—the artist’s signature, the holy signof how the universe and men engagedtogether in their sacred motions, yearrevolving after year—th...

  2. Aprovechamiento hidráulico de la fuente principal de la comunidad de aguas del Maimón : proyecto de viabilidad técnica y económica

    OpenAIRE

    Campuzano Bolarín, Fernando

    2011-01-01

    El principal objetivo consiste en desarrollar los estudios necesarios para llevar a cabo el aprovechamiento microhidraúlico real del cauce de un arroyo de origen subterráneo ubicado en la Solana de la montaña Maimón en Vélez Blanco (Almería), para ello se realizará un proyecto de viabilidad técnica y otro proyecto de viabilidad económico. El primero, el proyecto técnico tiene como principal objetivo determinar la mejor alternativa técnica posible de entre las que se plantará...

  3. Lichenometric Dating of Little Ice Age Moraines in the Cordillera Vilcabamba, Southern Peruvian Andes

    Science.gov (United States)

    Taggart, J. R.; Licciardi, J. M.

    2008-12-01

    Lateral and end moraines deposited by two valley glaciers were mapped on the south side of Nevado Tucarhuay (5910 m asl) and on the east side of Nevado Salcantay (6271 m asl) in the Cordillera Vilcabamba in the southern Peruvian Andes (~13°S latitude). The geomorphic expression of outer and inner moraine sequences in these two drainages mimics that of a previously studied pair of moraines in the upper Rio Blanco valley on the south side of Nevado Salcantay. Cosmogenic 10Be surface exposure dating has yielded ages of 9.0 ± 0.3 ka and 195 ± 24 years, respectively, for these outer and inner Rio Blanco moraines. In all three valleys, prominent outer moraines occur ~3-5 km from headwalls and inner moraine ridges are found ~2.5-3 km from headwalls. Recessional moraines found exclusively on the east side of Salcantay indicate multiple early- to late-Holocene glacier pauses, rather than continuous retreat, prior to the latest Holocene glacier readvance. Diameters of the lichen Rhizocarpon subgenus Rhizocarpon were measured on moraine boulders from the inner moraines in all three valleys. Lichen diameters on the two undated inner moraines are consistent with diameters on the inner 10Be-dated Rio Blanco moraine, which signifies similar lichenometric ages and supports synchronous glacier culminations in all three drainages during the Little Ice Age. The new lichen measurements and age estimates provide a critical link between previous lichen studies in the Cordillera Blanca to the north and in the Cordillera Real to the south, thereby increasing spatial coverage of terrestrial paleoclimate information. Moreover, the extensive lichen measurements gathered on the inner 10Be-dated Rio Blanco moraine define a new control point for the Rhizocarpon subgenus Rhizocarpon growth curve in the tropical Peruvian- Bolivian Andes, which will increase the accuracy of lichenometric age estimates in this region. 10Be exposure dating of the inner moraines in adjacent valleys is underway

  4. Carcinoma Celular Escamoso (CCE) felino

    OpenAIRE

    Roque Lagarde

    2008-01-01

    INTRODUCCIÓNEl plano nasal blanco del felino es asiento frecuente del Carcinoma Celular Escamoso (CCE). Generalmente se produce a continuación de una dermatitis actínica recidivante estacional.Su incidencia es mayor en las regiones de clima templado y en felinos que tienen por costumbre “asolearse”crónicamente y durante períodos prolongados durante los meses del verano.Las radiaciones solares no ionizantes ultravioletas (UVB) son más intensas y penetrantes a través de las capas superficiales ...

  5. An InSAR-based survey of volcanic deformation in the central Andes

    Science.gov (United States)

    Pritchard, M. E.; Simons, M.

    2004-02-01

    We extend an earlier interferometric synthetic aperture radar (InSAR) survey covering about 900 remote volcanos of the central Andes (14°-27°S) between the years 1992 and 2002. Our survey reveals broad (10s of km), roughly axisymmetric deformation at 4 volcanic centers: two stratovolcanoes are inflating (Uturuncu, Bolivia, and Hualca Hualca, Peru); another source of inflation on the border between Chile and Argentina is not obviously associated with a volcanic edifice (here called Lazufre); and a caldera (Cerro Blanco, also called Robledo) in northwest Argentina is subsiding. We explore the range of source depths and volumes allowed by our observations, using spherical, ellipsoidal and crack-like source geometries. We further examine the effects of local topography upon the deformation field and invert for a spherical point-source in both elastic half-space and layered-space crustal models. We use a global search algorithm, with gradient search methods used to further constrain best-fitting models. Inferred source depths are model-dependent, with differences in the assumed source geometry generating a larger range of accepted depths than variations in elastic structure. Source depths relative to sea level are: 8-18 km at Hualca Hualca; 12-25 km for Uturuncu; 5-13 km for Lazufre, and 5-10 km at Cerro Blanco. Deformation at all four volcanoes seems to be time-dependent, and only Uturuncu and Cerro Blanco were deforming during the entire time period of observation. Inflation at Hualca Hualca stopped in 1997, perhaps related to a large eruption of nearby Sabancaya volcano in May 1997, although there is no obvious relation between the rate of deformation and the eruptions of Sabancaya. We do not observe any deformation associated with eruptions of Lascar, Chile, at 16 other volcanoes that had recent small eruptions or fumarolic activity, or associated with a short-lived thermal anomaly at Chiliques volcano. We posit a hydrothermal system at Cerro Blanco to explain the

  6. Objetos de tipo espectral temprano en la vecindad de estrellas Wolf-Rayet

    Science.gov (United States)

    Collado, A.; Gamen, R.; Barbá, R.

    We are carrying out a spectroscopic monitoring of faint and poor-studied Galactic Wolf-Rayet stars in order to detect new binary systems. Since most of these systems are not related to known clusters or OB associations, a study of the stellar surrounding population is being done. These objects were chosen according to their IR colors in the 2MASS Catalogue and re- sulted in the discovery of several objects with early spectral types. The observations were performed in 2007 and 2008 with the 4-m telescope V. Blanco of the Inter-American Observatory of Cerro Tololo, Chile. FULL TEXT IN SPANISH

  7. Sources

    OpenAIRE

    2015-01-01

    Sources Fondation Pablo Iglesias. Alcala de Henares. Sections : Archives privées de Manuel ArijaArchives extérieuresArchives FNJS de EspañaPrensa Archives Générales de l’Administration. Alcala de Henares. Sections : Opposition au franquismeSig. 653 Sig TOP 82/68.103-68.602.Índice de las cartas colectivas, Relaciones, Cartas al Ministro de Información de Marzo de 1965. c.662. Sources cinématographiques Filmothèque Nationale d’Espagne.NO.DO. N° 1157C. 08/03/1965.aguirre Javier, Blanco vertical....

  8. Preparation and characterization of wood-polymer composites obtained by gamma irradiation

    International Nuclear Information System (INIS)

    The present work studies the improvement of the physical properties wood-polymer composites obtained by means of infiltration in vacuum of styrene-polyester, methyl methacrylate, and their mixtures. The polymerization was done by gamma radiation and microwaves. Capirona, Oje Blanco and Cumala woods, were used in this study. The polymerization by microwaves depends on the working power. High power produces bubbles, deformation and fractures of the obtained polymer. The minimum dose to provoke the polymerization by gamma radiation is 14 kGy. The wood-polymer composites show low water absorption in comparison with the non-treated wood. (author)

  9. Enfermedad pulmonar por amianto en trabajadores de acería

    OpenAIRE

    2013-01-01

    Las enfermedades relacionadas al amianto se producen por la inhalación de fibras de asbestos en su variedad crisotilo o amianto blanco. A pesar de que en la Argentina la prohibición data del año 2003, existen numerosas industrias donde se sigue trabajando con este mineral, entre ellas las metalúrgicas y acerías. Actualmente se conoce la alta patogenicidad de este material, por lo que en muchos países existen programas de seguimiento de los trabajadores expuestos. Se describen las característi...

  10. Efectos subletales de la lambda-cialotrina sobre Eisenia fetida (Annelida, Oligochaeta, Lumbricidae) Sublethal effects of lambda-cyhalothrin on Eisenia fetida (Annelida, Oligochaeta, Lumbricidae)

    OpenAIRE

    Tamara Ricardo; Maria Inés Maitre; Alba Rut Rodríguez

    2010-01-01

    El uso intensivo de agroquímicos provoca efectos dañinos sobre la fauna no blanco. Dentro de la misma, los oligoquetos contribuyen a mantener la estructura y fertilidad del suelo. La lambda-cialotrina es uno de los insecticidas piretroides más utilizados en la Argentina, pero son escasos los datos existentes acerca de su toxicidad sobre oligoquetos. Los objetivos de este trabajo fueron evaluar mediante bioensayos de toxicidad crónica los efectos de lambda-cialotrina (producto comercial al 5%)...

  11. La promoción de tecnologías de información y comunicación (TIC) en el marco de las políticas publicas de ciencia, tecnología e innovación en Argentina

    OpenAIRE

    Guido, Luciana

    2012-01-01

    Tecnología elaborados en Argentina como principal instrumento de gestión de la política pública sectorial durante la última década. En la segunda, se indagan los siguientes documentos elaborados desde el Ministerio Nacional de Ciencia, Tecnología e Innovación Productiva (Mincyt): el Plan Estratégico Nacional de Ciencia, Tecnología e Innovación“Bicentenario” (2006-2010) y el Libro Blanco de Prospectiva TIC Proyecto 2020. Paralelamente se exploran los principales mecanismos que tiene el esta...

  12. Un corpus para la historia del español en Nicaragua: edición de documentos oficiales del siglo XVIII (1704-1756)

    OpenAIRE

    José Luis RAMÍREZ LUENGO

    2011-01-01

    La historia lingüística de Nicaragua constituye todavía un auténtico hueco en blanco en la reconstrucción diacrónica del español americano. El presente trabajo pretende facilitar un primer corpus documental filológicamente fiable que contribuya al estudio del español nicara-güense del siglo XVIII. Se lleva a cabo aquí la edición de un conjunto de 22 documentos, en general breves y todos ellos hoy depositados en el Archivo General de Indias (Sevilla), escritos en los principales centros coloni...

  13. Afrolatinoamericanas... una experiencia de subversión estereotípica en el museo de la mujer de Buenos Aires

    OpenAIRE

    Lea Geler

    2012-01-01

    En este trabajo me centraré en la perfomance teatral Afrolatinoamericanas..., realizada en el Museo de la Mujer de Buenos Aires a finales del año 2010 por un grupo de teatro dedicado a la tematización de la afrodescendencia en la Argentina, un país que hasta hoy día sigue considerándose blanco-europeo y que sostiene que la población de descendientes de esclavizados/as africanos/as ha desaparecido. El análisis de la puesta en escena de dicha obra, en conjunto con el de fuentes históricas, perm...

  14. La Dea Roma de Segóbriga

    Directory of Open Access Journals (Sweden)

    Martín ALMAGRO-GORBEA

    2009-12-01

    Full Text Available Una hermosa escultura romana a la que hemos creído podríamos llamar desde ahora la «Dea Roma de Segóbriga», realizada en mármol blanco. Ahora ofrece una acusada pátina de color hueso. Mide 1,95 m. de altura, 0,69 de anchura máxima y 0,54 de grueso en su parte más voluminosa. Se conserva en el Museo de Cuenca.

  15. Gas Chromatography–Olfactometry Analyses of Volatiles Produced by ‘Fallglo’ and ‘US Early Pride’ Tangerines

    OpenAIRE

    Leclair, Clotilde; Plotto, Anne; McCollum, Greg; Bai, Jinhe; Biotteau, Alice; Baldwin, Elizabeth A.; Reyes-De-Corcuera, José; Chervin, Christian

    2012-01-01

    ‘Fallglo’ is a popular tangerine (Citrus reticulata Blanco) cultivar with high eating quality. However, ‘Fallglo’ may contain as many as 30–40 seeds per fruit. ‘US Early Pride’ is a seedless mutation of ‘Fallglo’ with similar quality attributes. The objective of the current study was to determine if ‘Fallglo’ and ‘US Early Pride’ fruit differed in the composition or quantity of aroma-active volatiles produced over time. Fruit were harvested bi-weekly from October to December. Juice was carefu...

  16. U’wa: visión y testamento

    OpenAIRE

    Shita, Asociación de autoridades tradicionales U'wa Werjain

    2012-01-01

    El texto es un manifiesto de las autoridades tradicionales U'wa Werjain Shita, en las que reafirman sus principios y convicciones, y denuncian las malas prácticas y mala conciencia del hombre blanco. Afirman su decisión de defender su Tierra, y proclaman que con cada especie que desaparece y con cada pueblo originario que se extingue, la comunidad humana se empequeñece. Ce texte est un manifeste des autorités traditionnelles U’wa Werjain Shita dans lequel elles réaffirment leurs principes ...

  17. Ficha de valoración ocupacional para trabajadores en Incapacidad Temporal (IT) en el País Vasco: valoración de requerimientos del trabajo en pacientes en IT o al alta

    OpenAIRE

    Juan Goiria Ormazábal

    2014-01-01

    Como dice el Libro Blanco sobre vigilancia de la salud, es una actividad propia del ámbito de la medicina del trabajo. Sin embargo, es imprescindible la interdisciplinariedad, puesto que, para llevar adelante esta vigilancia, deberán conocerse las condiciones y riesgos en el trabajo y, a su vez, aportará información capital para la planificación preventiva. La definición de la vigilancia contiene la idea del seguimiento continuo. En este sentido los Servicios de Prevención deben coordinar int...

  18. Papel del Mn (II) como regulador del metabolismo del nitrógeno inorgánico en Azotobacter

    OpenAIRE

    Ruiz Pérez, María Teresa

    1989-01-01

    En este trabajo hemos estudiado el efecto que diversos metales divalentes, especialmente manganeso, ejercen sobre la asimilación de nitrato y la fijación de nitrógeno en Azotobacter chrococcum, un área de investigación que no gabía sido abordad ... a hasta ahora. Los resultados que se describen sugieren que el Mn (II) puede actuar como una señal regulatoria del metabolismo nitrogenado, siendo la glutamina sintetasa su blanco de acción.La hipótesis de trabajo formuladas para explicar estos res...

  19. La Inquisición de Cartagena de Indias o de cómo se inventa una bruja en el siglo XVII

    OpenAIRE

    Ceballos Gómez, Diana Luz

    2001-01-01

    Se pueden distinguir tres grandes momentos en las acusaciones por brujería y hechicería en el Nuevo Reino de Granada. El primero, desde el arribo de los españoles hasta 1650-1680, coincide con las grandes "cazas de brujas" y los movimientos de Reforma y Contrarreforma en Europa. Predomina, sobre todo ante el Tribunal del Santo Oficio a partir de su creación, la acusación de brujería sobre las demás y en mayor medida en cabeza de los negros y de los blancos. Los indios serán acusados predomina...

  20. LA SEPARACIÓN ENTRE PALABRAS EN LA ESCRITURA DE NIÑOS QUE INICIAN LA ESCOLARIDAD PRIMARIA

    OpenAIRE

    MAIRA QUEREJETA; TELMA PIACENTE; BÁRBARA GUERRERO ORTIZ-HERNÁN; ELDA ALICIA ALVA CANTO

    2013-01-01

    En la escritura convencional de oraciones y de textos, las palabras están separadas por espacios en blanco. Sin embargo, en los inicios de la alfabetización suelen observarse hiposegmentaciones e hipersegmentaciones entre palabras. Las investigaciones sobre el tema son escasas, limitándose a registrar su aparición, sin llegar a establecer todos los tipos de uniones o separaciones. En función de ello, a partir de un diseño descriptivo transeccional correlacional, el propósito de este trabajo f...

  1. El retorno del anarquismo. Violencia y protesta pública en el México actual

    OpenAIRE

    Illades, Carlos

    2014-01-01

    Dentro del contexto de violencia generalizada que se vive en México, no ha tenido la debida atención el resurgimiento de formas de acción directa realizadas por grupos que se asumen anarquistas, los cuales se fueron conformando durante la última década, aunque de 2011 para acá han mostrado un mayor activismo. Este texto trata de mostrar cuáles son sus reivindicaciones fundamentales y cómo conciben la acción política, qué métodos de lucha emplean, cuáles son los blancos privilegia...

  2. Modelización de las propiedades radiativas e interacción de láseres ultraintensos con la materia

    OpenAIRE

    García de La Varga, Alberto

    2014-01-01

    Desde el año 2004 el código ARWEN ha sido utilizado con éxito para simular y diseñar experimentos relacionados con blancos para fusión por confinamiento inercial [146], astrofísica de laboratorio [145], plasmas como amplificadores de láseres de rayos X [107] o plasmas creados por láser para la medición de espectros de transmisión. Para la realización de estas simulaciones es necesario, además de métodos de alto orden precisos y que presenten buenas propiedades conservativas, conocer ciertas p...

  3. Desenvolvimento vegetativo, produção e qualidade de frutos da tangerina 'Fremont' sobre quatro porta-enxertos Growth, yield and fruit quality of 'Fremont' mandarin on four rootstocks

    Directory of Open Access Journals (Sweden)

    Erick Espinoza Núñez

    2007-08-01

    Full Text Available Com o objetivo de avaliar o desenvolvimento vegetativo, produção e qualidade de frutos da tangerina 'Fremont' (C. clementina Hort. ex Tan. X C. reticulata Blanco sobre os porta-enxertos limão 'Cravo' (C. limonia Osbeck, citrumelo 'Swingle' (P. trifoliata Raf. x C. paradisi Macf., tangerina 'Cleópatra' (Citrus reshni Hort. ex Tan. e tangelo 'Orlando' (C. reticulata Blanco x C. paradisi Macf., foi instalado um experimento em Bebedouro-SP, em 1997. Embora diferenças na produção tenham sido registradas em função dos porta-enxertos, nos anos de 2003 a 2005, a produção acumulada nas safras de 2000 a 2006 não revelou influência dos mesmos. Os valores do índice de alternância de produção e eficiência de produção não foram influenciados pelos porta-enxertos. O teor de sólidos solúveis, bem como acidez total foram superiores nos frutos das plantas enxertadas sobre citrumelo 'Swingle' e tangerina 'Cleópatra'. Os valores de volume da copa e diâmetro do tronco foram superiores nas árvores sobre tangelo 'Orlando' e tangerina 'Cleópatra'.An experiment was installed in Bebedouro, SP, Brazil in 1997, with the aim of evaluate the effect of the rootstocks 'Rangpur' lime (C. limonia Osbeck, 'Swingle' citrumelo (P. trifoliata Raf. x C. paradisi Macf., 'Cleopatra' mandarin (Citrus reshni Hort. ex Tan. and 'Orlando' tangelo (C. reticulata Blanco x C. paradisi Macf. on plant growth, yield and fruit quality of 'Fremont' mandarin (C. clementina Hort. ex Tan. X C. reticulata Blanco. Despite that differences in yield have been registered related to the rootstocks between 2003 to 2005; cumulative yield from 2000 to 2006 seasons was not affected by the rootstock. Alternate bearing index and yield efficiency values were not influenced by the rootstocks. Fruits from trees on 'Swingle' citrumelo and 'Cleópatra' mandarin had higher values of total soluble solids concentration and total acids. Trunk diameter and canopy volume values were higher in

  4. Estudio etnobotánico, arquitectura foliar y anatomía vegetativa de Agastache mexicana ssp. mexicana y A. mexicana ssp. xolocotziana Etnobotany, leaf architecture, and vegetative anatomy of Agastache mexicana ssp. mexicana and A. mexicana ssp. xolocotziana

    OpenAIRE

    Magali A. Santillán-Ramírez; Ma. Edith López-Villafranco; Silvia Aguilar-Rodríguez; Abigail Aguilar-Contreras

    2008-01-01

    El presente trabajo incluye información etnobotánica, así como la arquitectura foliar y anatomía vegetativa de Agastache mexicana ssp. mexicana (toronjil morado) y A. mexicana ssp. xolocotziana (toronjil blanco), con la finalidad de que sean incluidas en la Farmacopea Herbolaria de los Estados Unidos Mexicanos (FHEUM) y que sus caracteres anatómicos se utilicen para validar la identidad del material vegetal en el control de calidad. El registro de la información etnobotánica se efectuó por me...

  5. Género, edad y pobreza como determinantes de vulnerabilidad y adaptación ante desastres: El impacto del huracán Karl en La Antigua, Veracruz.

    OpenAIRE

    Sosa Capistrán, Dulce María

    2014-01-01

    En el presente trabajo se describen las experiencias de dos localidades impactadas por el huracán Karl en septiembre de 2010. El objetivo de la investigación es analizar la respuesta institucional e identificar las condiciones de vulnerabilidad y acciones de respuesta ante el huracán Karl considerando diferencias de género, edad y pobreza entre la población de la localidad de Nicolás Blanco y la colonia de desplazados (as) Huitzilapan del municipio de La Antigua, Veracruz. Se utilizó una meto...

  6. Nuclear analytical techniques in Cuban Sugar Industry

    International Nuclear Information System (INIS)

    This paper is a review concerning the applications of Nuclear Analytical Techniques in the Cuban sugar industry. The most complete elemental composition of final molasses (34 elements ) and natural zeolites (38) this last one employed as an auxiliary agent in sugar technological processes has been performed by means of Instrumental Neutron Activation Analysis (INAA) and X-Ray Fluorescence Analysis (XRFA). The trace elements sugar cane soil plant relationship and elemental composition of different types of Cuban sugar (rawr, blanco directo and refine) were also studied. As a result, valuable information referred to the possibilities of using these products in animal and human foodstuff so as in other applications are given

  7. REFLEXIONES SOBRE EL IMPACTO SOCIOECONÓMICO DEL CULTIVO DE MAÍZ EN SINALOA

    OpenAIRE

    Leobardo Gerardo-Montoya; Adolfo Dagoberto Armenta-Bojorquez

    2010-01-01

    Para los productores en Sinaloa no ha sido fácil mantener la rentabilidad de sembrar maíz blanco, ya que el Gobierno Federal ha postergado medidas de apoyo económico. Sin embargo, una fortaleza es que este tipo de maíz es el principal alimento de los Mexicanos, por lo que tienen la mayor producción a nivel mundial. La demanda de maíz crece por lo menos 1 millón de ton anuales en el país, mientras que la oferta se restringe en el mundo como consecuencia de su uso para producir etanol. Por esta...

  8. Variabilidad de la presión arterial mediante el uso de amlodipino utilizando monitoreo ambulatorio de la presión arterial

    OpenAIRE

    José Z. Parra Carrillo; Irma Carolina Bonilla Rosales; Gabriela Ileana Ponce Martínez; Salvador Fonseca Reyes; Rodolfo Parra Michel; Elva Wendoline Rojo Contreras

    2001-01-01

    Distintos estudios han demostrado que el dañohipertensivo a órganos blanco correlaciona conla variabilidad de la presión arterial (PA), expresada como variabilidad absoluta o coeficientede variación, en especial, con la variabilidad dePA sistólica (PAS).Se estudiaron 27 pacientes, los cuales recibieron placebo por 4 semanas, después unadosis inicial de amlodipino 5 mg/día, por 4 semanas. En los que no se obtuvo PA diastólica90 mmHg, la dosis se incrementó a 10 mg/día.Después del tratamiento ...

  9. Crescimento e alterações anatômicas e bioquímicas de Patchouli em função do regime hídrico e bioestimulantes

    OpenAIRE

    Storck, Rafaellen Caroline

    2013-01-01

    Resumo: Pogostemon cablin (Blanco) Benth., popularmente conhecido como patchouli, é uma espécie aromática pertencente a família Lamiaceae. Sua utilização por parte de indútrias de higiene e perfumaria se deve ao óleo essencial que este possui, o qual apresenta atividades farmacológicas, além de conferir capacidade de fixação à pele e aroma amadeirado às composições a base deste. As propriedades do óleo essencial de patchouli estão fortemente relacionadas à presença de seus constituintes major...

  10. Sucedáneo del café a partir de algarroba (prosopis alba griseb).

    OpenAIRE

    PROKOPIUK, DANTE BASILIO

    2008-01-01

    Prosopis alba Griseb (algarrobo blanco) es una leguminosa arbórea que crece naturalmente en el Chaco argentino. Los frutos o algarrobas son dulces y tienen un apreciable valor proteico, por ello son utilizadas en la alimentación humana y animal, principalmente secas y molidas o en forma de extractos acuosos. El objetivo de este trabajo de tesis doctoral fue desarrollar un sucedáneo de café a partir de la algarroba de Prosopis alba Griseb. Para ello, se tostaron las algarrobas a seis temperatu...

  11. Bioatividade de diversos pós de origem vegetal em relação A Sitophilus zeamais Mots. (Coleoptera: Curculionidae) Bioactivity of powders from some plants on Sitophilus zeamais Mots. (Coleoptera: Curculionidae)

    OpenAIRE

    Sérgio de Oliveira Procópio; José Djair Vendramim; José Ivo Ribeiro Júnior; José Barbosa dos Santos

    2003-01-01

    Foram avaliadas, em condições de laboratório, a repelência, sobrevivência e emergência de adultos de Sitophilus zeamais em grãos de milho tratados com pós de Azadirachta indica A. Juss (frutos), Capsicum frutescens L. (frutos e folhas, separadamente), Chenopodium ambrosioides L. (folhas, flores e frutos, conjuntamente), Eucalyptus citriodora Hook (folhas), Melia azedarach Blanco (folhas) e Ricinus communis L. (folhas). As plantas que provocaram repelência foram E. citriodora e C. frutescens (...

  12. Dwarf galaxies in the Antlia Cluster: First results

    CERN Document Server

    Castelli, A V S; Cellone, S A; Richtler, T; Dirsch, B; Infante, L; Aruta, C; Gómez, M

    2006-01-01

    We present the first results of a project aimed to study the galaxy population of the Antlia cluster, the third nearest galaxy cluster after Virgo and Fornax. The observations for the Antlia project consist of Washington wide-field images taken with the MOSAIC camera mounted at the prime focus of the CTIO 4-m Blanco telescope. Our preliminary results correspond to the identification and classification of dwarf galaxies in the central cluster region, extending the list of Ferguson & Sandage (1990). The final aim of our project is to study the luminosity function, morphology and structural parameters of dwarf galaxies in the Antlia cluster with a more complete sample.

  13. A new species of Goniothalamus (Annonaceae from Palawan, and a new nomenclatural combination in the genus from Fiji

    Directory of Open Access Journals (Sweden)

    Chin Cheung Tang

    2013-12-01

    Full Text Available A new species, Goniothalamus palawanensis C.C.Tang & R.M.K.Saunders, sp. nov. (Annonaceae, is described from Palawan, Philippines. Goniothalamus palawanensis is most closely related to G. amuyon (Blanco Merr., but differs in its shorter inner petals, hairy ovaries, and funnel-shaped stigmas. A new nomenclatural combination, G.angustifolius (A.C.Sm. B.Xue & R.M.K.Saunders, comb. nov., is furthermore validated to reflect the phylogenetic affinities of a Fijian species previously assigned to Polyalthia.

  14. Modificaciones tecnológicas para mejorar la seguridad y calidad del jamón curado

    OpenAIRE

    Sánchez Molinero, Filiberto

    2004-01-01

    Se introdujeron varias modificaciones tecnológicas en la elaboración habitual del jamón curado español de cerdo blanco para mejorar su seguridad y calidad, así como para investigar la contribución relativa de los diversos procesos implicados en la calidad sensorial.Las modificaciones introducidas en cada uno de 3 experimentos (a, b, c) fueron: a) inoculación de un cultivo iniciador (CI) en la superficie del producto y el envasado del jamón al vacío durante la etapa de reposo (EV); b) aplicaci...

  15. Time-varying contributions by the corporate bond and CDS markets to credit risk price discovery

    OpenAIRE

    Dötz, Niko

    2007-01-01

    This paper looks at the dynamic price relationship between spreads in the corporate bond market and credit default swaps (CDS). It picks up where Blanco et al (2005) leave off but is focused on European credit markets. The study is based on companies listed in the iTraxx CDS index and thus on new data on a more liquid CDS market. Unlike previous studies, which look at price formation in a time-invariant context, the contributions of both markets to price discovery are analysed in a timevarian...

  16. Salida de campo por Aguilar de Campoo (Palencia) entre el 3 y el 10 de abril de 1954

    OpenAIRE

    Valverde Gómez, José Antonio, 1926-2003

    2008-01-01

    Salida de campo por Aguilar de Campoo, en Palencia, entre el 3 y el 10 de abril de 1954, de la que se anotaron observaciones sobre las siguientes aves: "Buitre grande" (probablemente, Aegypius monachus, el Buitre negro), Ciconia sp. (Cigüeña), Neophron percnopterus (Alimoche común, también conocido como Buitre blanco) y Saxicola torquata (Tarabilla común). Field trip through Aguilar de Campoo, at Palencia, between the 3rd and the 10th of April of 1954, of which there were noted observatio...

  17. Modelos en desarrollo de terapias derivadas de biotecnologia

    OpenAIRE

    Jaimes Monroy, Gustavo

    2008-01-01

    El objetivo de la terapia génica para el tratamiento del cáncer es eliminar las células tumorales preservando el tejido normal. Diversas estrategias para llevar acabo este objetivo han demostrado resultados promisorios en el laboratorio, incluyendo moléculas que pueden tener blancos específicamente predeterminados en secuencias en el ADN y el ARNm; estas secuencias proporcionan un medio para modular la función de genes endógenos. Diferentes tipos de moléculas: inductores de hélices triples, o...

  18. Agentes Biológicos en el tratamiento de la Artritis Reumatoide

    Directory of Open Access Journals (Sweden)

    José Francisco Díaz-Coto

    2011-02-01

    Full Text Available El mayor conocimiento inmuno-patológico de la artritis reumatoide permitió mediante una sofisticada tecnología molecular elaborar antagonistas contra blancos específicos en diversos pasos de la inmuno patogenia de la enfermedad. Existe una amplia evidencia sobre la eficacia, tolerabilidad y seguridad de estos agentes en diferentes escenarios clínicos de la artritis reumatoide. La introducción de estos agentes biológicos en el arsenal terapéutico de la artritis reumatoide ha marcado un hito en su evolución y pronóstico artritis reumatoide.

  19. ¿Buenas razones para quemar libros? Un estudio exploratorio sobre la quema de bibliotecas barriales en Francia

    OpenAIRE

    Denis Merklen

    2010-01-01

    El trabajo se concentra en la conflictividad social de jovenes de sectores populares en las afueras de París. El texto analiza la quema de bibliotecas en los suburbios parisinos tratando de aportar claves para la comprensión de los hechos. Tratando de iluminar, por un lado, por qué un disturbio anti-policial tiene como blanco las bibliotecas populares y por otro, como esas acciones constituyen un choque político cultural de diferentes sectores socia...

  20. Efecto protector de Helianthus annuus (girasol) sobre el infarto de miocardio en conejos Nueva Zelanda

    OpenAIRE

    Edith Guardia-Espinoza; Gianina Liseth del Carmen Herrera-Hurtado; Saúl Garrido-Jacobi; Danitza Cárdenas-Peralta; Christian Martínez-Romero; Pedro Hernández-Figueroa; Mary Condori-Calizaya; Juan La Barrera-Llacchua; Miguel Flores-Ángeles

    2015-01-01

    Objetivos. Determinar el efecto protector del aceite de Helianthus annuus (Girasol) sobre el infarto de miocardio inducido con epinefrina en conejos Nueva Zelanda. Materiales y métodos. Los conejos fueron asignados aleatoriamente en cinco grupos (n= 8 por grupo): blanco, control negativo, experimental 1 (10 mg/kg), experimental 2 (20 mg/kg) y experimental 3 (40 mg/kg). Los grupos experimentales 1, 2 y 3 recibieron aceite de Helianthus annuus durante dos semanas. La epinefrina (2 mg/Kg) se adm...

  1. Moluscos gasterópodos como bioindicadores en el Archipiélago canario: de procesos naturales a causas antropogénicas

    OpenAIRE

    Ramírez Cañada, Rubén

    2010-01-01

    Se han eliminado páginas en blanco Este estudio presenta la utilización de diferentes especies de moluscos gasterópodos como bioindicadores en el Archipiélago Canario. Su principal objetivo es la obtención de una herramienta que proporcione información de manera rápida y fiable sobre la calidad del medio ambiente y sobre el estado de conservación de los ecosistemas naturales. Concretamente, se seleccionaron seis especies de moluscos gasterópodos ampliamente extendidos en la ...

  2. Iglesia en Hoorn, Holanda

    Directory of Open Access Journals (Sweden)

    Van Oerle-Schrama-Bos, Arquitectos

    1968-02-01

    Full Text Available This church has room for 862 persons and has been designed in accordance with the most recent liturgical practice. The basic constructional elements are reinforced concrete, and untreated or white painted brick. The inner design seeks mainly to achieve a diaphanous and luminous environment.Tiene una capacidad de 862 asientos, y ha sido realizada de acuerdo con los más modernos principios litúrgicos. Los elementos fundamentales de construcción han sido el hormigón armado y el ladrillo visto, en su color o pintado de blanco. En su interior se ha atendido primordialmente a conseguir un ambiente claro y luminoso.

  3. Experiencia de trabajo en una asociación de apoyo extracurricular a alumnos de altas capacidades

    OpenAIRE

    Tomás Tomás, Jorge

    2015-01-01

    Treball final de Màster Universitari en Professor/a d'Educació Secundària Obligatòria i Batxillerat, Formació Professional i Ensenyaments d'Idiomes. Codi: SAP129. Curs acadèmic 2014-2015 Como paso final del Máster Universitario en Profesorado de Educación Secundaria Obligatoria y Bachiller, Formación Profesional y Enseñanza de Idiomas plasmamos en negro sobre blanco la esencia vivida en una Asociación de apoyo extracurricular para alumnos con Altas Capacidades con la reaIización del presen...

  4. La comunidad indecible: etnia y nación en la novela indigenista Latinoamericana

    OpenAIRE

    Ramón Máiz

    2005-01-01

    El artículo aborda las dificultades de la novela indigenista de la construcción de la comunidad indígena como mundo aparte y el Indio mismo como sujeto estético y literario autónomo. En primer lugar, la heterogeneidad derivada de que la narrativa indigenista no resulte escrita por sus protagonistas ni en su lengua. En segundo lugar, la creación de una comunidad indígena literaria como totalidad homogénea en su interior y netamente diferenciada del mundo blanco/mestizo, tropieza no solo con la...

  5. Chagas y SIDA, la importancia del diagnóstico precoz

    OpenAIRE

    Sergio R. Auger; Rubén Storino; Miguel De Rosa; Oscar Caravello; González, María I.; Edgardo Botaro; Liliana Bonelli; Oscar Rossini

    2005-01-01

    Objetivos: Evaluar las vías de contagio, la reactivación y la evolución de la enfermedad de Chagas en pacientes con HIV. Material y métodos Se incorporaron pacientes internados con SIDA y Chagas reactivo. Se evaluaron la epidemiología, la adicción a drogas, la reactivación de la enfermedad de Chagas y el órgano blanco más afectado, la demora del inicio de tratamiento antiparasitario y la evolución posterior. Se realizaron serologías, estudios parasitológicos en sangre y líquido cefalorraq...

  6. Velocidad de descomposición de la hojarasca en diferentes sustratos de manglar en San Andrés Isla, Caribe colombiano

    OpenAIRE

    Mancera P. José Ernesto; Medina Calderón Jairo; Sierra Rozo Omar Alfonso; Santos-Martínez Adriana

    2007-01-01

    La degradación de la hojarasca de manglar fue estudiada en diferentes sustratos de tres humedales de manglar
    en San Andrés isla, Caribe colombiano. Las tasas de descomposición de Rhizophora mangle (mangle rojo),
    Laguncularia racemosa (mangle blanco) y Avicennia germinans (mangle negro) fueron medidas en bolsas tipo
    malla. Algunas bolsas fueron dispuestas bajo el suelo, otras sumergidas en el agua, y otras sobre la superficie
    del suelo. Dos humedales...

  7. Formación Ciénaga Larga del Tontal: nomen novum para la Formación Casa de Piedra, Carbonífero, Precordillera de San Juan

    OpenAIRE

    S. Barredo; E. G. Ottone

    2003-01-01

    En el faldeo occidental de la sierra del Tontal y al este de la región de Rincón Blanco, Precordillera de San Juan, afloran sedimentitas de edad carbonífera originalmente denominadas Formación Casa de Piedra. Este nombre no es válido pues ha sido utilizado previamente en otra unidad de edad triásica. Se propone entonces para estas rocas el nombre de Formación Ciénaga Larga del Tontal, nomen novum. Estudios palinológicos, junto con el mapeo detallado y el análisis estructural de esta unidad ha...

  8. Formación Ciénaga Larga del Tontal: nomen novum para la Formación Casa de Piedra, Carbonífero, Precordillera de San Juan The Ciénaga Larga del Tontal Formation: nomen novum for the Casa de Piedra Formation, Carboniferous, Precordillera de San Juan

    OpenAIRE

    S. Barredo; E. G. Ottone

    2003-01-01

    En el faldeo occidental de la sierra del Tontal y al este de la región de Rincón Blanco, Precordillera de San Juan, afloran sedimentitas de edad carbonífera originalmente denominadas Formación Casa de Piedra. Este nombre no es válido pues ha sido utilizado previamente en otra unidad de edad triásica. Se propone entonces para estas rocas el nombre de Formación Ciénaga Larga del Tontal, nomen novum. Estudios palinológicos, junto con el mapeo detallado y el análisis estructural de esta unidad ha...

  9. Comportamiento de los virus de crustáceos de declaración obligatoria de la OIE en Litopeneaeus vannamei de cultivo en Cuba en el período 2003-2009

    OpenAIRE

    Artiles, A.; Rubio, M; Gonzalez, E.; Laria, R; Silveira, R.

    2011-01-01

    Uno de los principales problemas del cultivo del camarón blanco del Pacífico, Litopeneaeus vannamei, es la susceptibilidad de esta especie a diversas enfermedades virales, que pueden conducir a grandes mortalidades y/o pérdidas económicas. En este trabajo se reportan los resultados obtenidos en la ejecución de los muestreos periódicos y chequeos de cuarentenas correspondientes al programa de vigilancia, desde la primera introducción de esta especie en Cuba en 2003 hasta el 2009. P...

  10. Arte y medio ambiente: la naturaleza como experiencia artística

    OpenAIRE

    José Luis Lozano Jiménez

    2010-01-01

    La naturaleza y, en consecuencia, los espacios naturales han impulsado a los artistas a desarrollar un cierto tipo de proyectos artísticos que nacen de la interpretación de aquélla como material de creación plástica y como fuente de experiencia estética. La presente noticia resume las experiencias recogidas en la coordinación de los talleres que impartieron los artistas Ricardo Calero y Miguel Ángel Blanco en el curso-taller sobre intervenciones artísticas contemporáneas Arte y Medio Ambiente...

  11. Aproximación al estudio del sistema cognoscitivo de la alimentación páez

    OpenAIRE

    Esther Sánchez de Guzmán

    2010-01-01

    El medio ambiente constituye para los Páez el escenario dentro del cual han de ser interpretadas las nociones fundamentales construidas a partir de su diario vivir con la naturaleza. Para el blanco la naturaleza es dominada, lo cual crea una mentalidad bien diferente a la de los indígenas, a quienes la naturaleza marca pautas que determinan comportamientos. Sin embargo todos atribuyen al sol, los animales, las plantas, el aire, el agua... ciertas características que permiten un estado de conf...

  12. Foucault reflejado en una política deportiva municipal de Las Flores

    OpenAIRE

    Del Giovannino, Maria Belén

    2009-01-01

    Este trabajo tiene como finalidad analizar las Olimpiadas Juveniles Florenses desde la categoría de Biopoder de Foucault, ver como detrás de un discurso de hacer una olimpiada para las horas de asueto de los jóvenes y con el fin de fomentar la vida sana, la amistada, la solidaridad entre otras cosas más, esta política municipal es utilizadas como formas de sometimiento y control de la juventud, tomando al cuerpo como blanco de poder, para mejorar la salud y al nivel social cambiar los hábitos...

  13. Familial hemiplegic migraine with prolonged global aura: follow-up findings of subtraction ictal SPECT co-registered to MRI (SISCOM).

    Science.gov (United States)

    Arias-Rivas, Susana; Rodríguez-Yañez, Manuel; Cortés, Julia; Pardo-Parrado, María; Aguiar, Pablo; Leira, Rogelio; Castillo, José; Blanco, Miguel

    2012-10-01

    All authors contributed equally to this work. Susana Arias-Rivas wrote the main paper. Manuel Rodriguez-Yáñez investigated the supplementary data. Julia Cortés and Pablo Aguiar performed the nuclear image studies and analysed and described the neuroimaging results. María Pardo, Rogelio Leira and Jose Castillo jointly conceived the study, followed the patient and prepared the manuscript. Miguel Blanco discussed the results. All authors discussed the results and implications and commented on the manuscript at all stages.

  14. Optimization of the Integrated Guidance and Control for a Dual Aerodynamic Control Missile

    OpenAIRE

    Ibarrondo Hernández, Francisco de Borja

    2015-01-01

    Las futuras misiones para misiles aire-aire operando dentro de la atmósfera requieren la interceptación de blancos a mayores velocidades y más maniobrables, incluyendo los esperados vehículos aéreos de combate no tripulados. La intercepción tiene que lograrse desde cualquier ángulo de lanzamiento. Una de las principales discusiones en la tecnología de misiles en la actualidad es cómo satisfacer estos nuevos requisitos incrementando la capacidad de maniobra del misil y en paralelo, a través de...

  15. El salvaje interior en el imaginario europeo

    OpenAIRE

    Pedraza, Pilar

    2005-01-01

    Antes del descubrimiento de otros continentes y del enfrentamiento con otras razas, hay en la imaginación europea un salvaje blanco que se caracteriza por vivir en solitario y no estar sujeto a norma ni constituir una sociedad. No es un bárbaro, que sí pertenece a una civilización, aunque inferior a la de quien le denomina así. En la Edad Moderna el salvaje u hombre silvestre se transforma en hombre lobo o bien en freak exhibido en la plaza pública o el circo. La época contemporánea ha encerr...

  16. Estudio arqueométrico de cuentas de vidrio procedentes de la necrópolis de Numancia (siglo II a.C.)

    OpenAIRE

    García Heras, Manuel; Villegas Broncano, María Ángeles; Alfredo JIMENO MARTÍNEZ; Rincón López, Jesús María

    2003-01-01

    [ES] La reciente excavación de la necrópolis celtibérica de Numancia (Garray, Soria) ha permitido recuperar un conjunto de cuentas de vidrio del siglo Ha.C. Las cuentas,junto conotros objetos de metaly cerámica, formaban parte de las ofrendas depositadas con el difunto, siendo de tipología anular y coloreadas en azul oscuro,ambar y blanco semitransparente. Este trabajo presenta los resultados obtenidos en la caracterización química y microestructural de una muestra rep...

  17. Comparación del desempeño de paneles no entrenados pertenecientes a diferentes zonas productoras del queso fresco “cuajada” en Oaxaca, México

    OpenAIRE

    Rodrigo Santiago Cabrera; Emmanuel de Jesús Ramírez Rivera; Lorena Guadalupe Ramón Canul; José Manuel Juárez Barrientos; Juan Cristóbal Hernández Arzaba; María Hernández Cervantes; Juliana López Velázquez; Tania Gómez Alvarado

    2011-01-01

    Se realizó un estudio donde se comparó el desempeño de paneles no entrenados pertenecientes a cuatro zonas productoras del queso fresco “cuajada” (San Pedro Comitancillo, Santo Domingo Ingenio, Asunción Ixtaltepec y Juchitán de Zaragoza) para la evaluación de ocho características sensoriales (color blanco, textura granulosa al tacto, suave al tacto, olor a cuajo, salado, grumoso en boca, suave en boca, aroma a suero). La habilidad discriminatoria así como la confiabilidad y el acuerdo en el u...

  18. Variabilidad morfológica, patogénica y susceptibilidad a fungicidas de Rhizoctonia solani aislado de rizósfera de Vitis vinifera var. perlette seedless

    OpenAIRE

    Amparo Meza-Moller; Martín Esqueda; Alfonso Gardea; Martín Tiznado; Gil Virgen-Calleros

    2007-01-01

    Se estudió la variabilidad morfológica, reacción de anastomosis, patogenicidad y susceptibilidad a fungicidas de Rhizoctonia solani aislado de la rizósfera de Vitis vinifera var. perlette seedless plantada a pie franco en Sonora, México. El hongo se aisló mediante el método de tamizado en húmedo y la siembra en agar-agua 2 %. Se obtuvieron 122 cepas, las cuales presentaron hifas con 3 a 9 núcleos por célula, de 3 a 8 µm de diámetro y de color blanco sucio a moreno oscuro. Los aislamientos cor...

  19. Field measurement of relative ground displacement

    International Nuclear Information System (INIS)

    Protection of existing structures is a major requirement during underground nuclear blasts detonated as part of the Plowshare Program. Instrumental arrays to record ground motion are routinely established prior to blasts. These provide data on particle motions during the event but do not provide direct information concerning ground strains and relative displacements which may effect bridges, buildings, irrigation channels and other structures with large plan dimension. An experimental technique which was hastily developed and deployed to measure relative displacements during the Rio Blanco event of May 17, 1973 is described. The work was performed in anticipation of the Project Wagon Wheel in an area of Wyoming with many concrete lined irrigation channels

  20. Confrontación y trascendencia. La crisis de la mitad de la vida

    OpenAIRE

    Verduzco, Max; Sierra, Gabriela

    1993-01-01

    Se realiza un análisis sobre la crisis de la mitad de la vida, teniendo como objetivo el provocar una reflexión sobre la propia vida como un proceso cambiante que puede desembocar en la autorrealización. Se señalan las etapas de vida de acuerdo a distintas perspectivas, y se hace una descripción de esta crisis como una confrontación con el inconsciente que lleva a la madurez y a la aceptación. Se incluye obra visual de Cornelio García, reproducida en blanco y negro.

  1. Analysis of Major Carotenoid Composition and Its Content of Citrus Fruit

    Institute of Scientific and Technical Information of China (English)

    TAO Jun; ZHANG Shang-long; ZHANG Liang-cheng; XU Jian-guo; LIU Chun-rong

    2003-01-01

    a-carotene, β-carotene, lycopene, β-cryptoxanthin, zeaxanthin and lutein content of fruits in53 citrus cultivars were determined using HPLC. In both peel and pulp of citrus fruit, the major carotenoidswere lutein, zeaxanthin and β-cryptoxanthin. β-carotene content was relatively low and extremely low was theamount of or-carotene. Among the 53 cultivars tested, lycopene was detected only in pulp of Cara Cara navelorange. Carotenoid content in both peel and pulp of citrus fruit was the highest in Citrus reticulata Blanco andlowest in Citrus grandis Osbeck. Consequently, as far as the health protection value is considered, fruit ofCitrus reticulata Blanco ranks probably higher than other citrus fruits. In fruit of most Citrus retieulatavarities, β-cryptoxanthin was the main carotenoid component in pulp and its amount approximated that of lu-tein in peel. Content of lutein, zeaxanthin and β-cryptoxanthin in peel was about 2.5 - 15 times that in pulp onthe basis of fresh weight. Thus peel was inferred to be the principal location for the carotenoid stock in citrus fruit.

  2. Rapid screening and identification of target constituents using full scan-parent ions list-dynamic exclusion acquisition coupled to diagnostic product ions analysis on a hybrid LTQ-Orbitrap mass spectrometer.

    Science.gov (United States)

    Zhang, Jia-Yu; Wang, Zi-Jian; Zhang, Qian; Wang, Fang; Ma, Qun; Lin, Zhao-Zhou; Lu, Jian-Qiu; Qiao, Yan-Jiang

    2014-06-01

    A highly sensitive and effective strategy for rapid screening and identification of target constituents has been developed using full scan-parent ions list-dynamic exclusion (FS-PIL-DE) acquisition coupled to diagnostic product ions (DPIs) analysis on a hybrid LTQ-Orbitrap mass spectrometer. The FS-PIL-DE was adopted as a survey scan to trigger the MS/MS acquisition of all the predictable constituents contained in traditional Chinese medicines. Additionally, DPIs analysis can provide a criterion to judge the target constituents detected into certain chemical families. Results from analyzing polymethoxylated flavonoids (PMFs) in the leaves of Citrus reticulata Blanco demonstrated that FS-PIL-DE was capable of targeting a greater number of constituents than FS, FS-PIL and FS-DE, thereby increasing the coverage of constituent screening. As a result, 135 PMFs including 81 polymethoxyflavones, 54 polymethoxyflavanones or polymethoxychalcones were identified preliminarily. And this was the first time to systematically report the presence of PMFs in the leaves of Citrus reticulata Blanco, especially for polymethoxylated flavanones and chalcones, most of which were new compounds. The results indicated that the developed FS-PIL-DE coupled to DPIs analysis methodology could be employed as a rapid, effective technique to screen and identify target constituents from TCMs extracts and other organic matter mixtures whose compounds contained can also be classified into families based on the common carbon skeletons. PMID:24767453

  3. Microchemical identification of macael white marble in some spanish monuments

    Directory of Open Access Journals (Sweden)

    Bello, M. A.

    1992-03-01

    Full Text Available The white marble from Macael quarries (Almería, Spain has been identified in some monuments of the Southern of Spain; the use of other white marble types has also been confirmed. The microchemical identification has been carried out by means a previously described graphical method (Bello and Martín,1991. Fourteen trace elements have been analyzed from both quarry and building material samples by using atomic absorption and flame emission spectrometry in order to apply the enrichment diagrams for trace elements (EDTE for identification purposes.

    Ha sido confirmado el empleo del mármol blanco procedente de las canteras de Macael (Almería en varios monumentos del Sur de España; también se ha constatado el empleo de otros tipos de mármol blanco. La identificación del mármol de Macael mediante técnicas microquícas ha sido realizada mediante un método gráfico propuesto por los autores (1. Han sido analizados catorce elementos traza en las muestras de cantera y de los edificios mediante espectrofotometría de absorción atómica y de emisión de llama, al objeto de construir los diagramas de enriquecimiento de elementos traza (EDTE, con fines de identificación.

  4. Re-grouping stars based on the chemical tagging technique: A case study of M67 and IC4651

    CERN Document Server

    Blanco-Cuaresma, S

    2016-01-01

    The chemical tagging technique proposed by Freeman & Bland-Hawthorn (2002) is based on the idea that stars formed from the same molecular cloud should share the same chemical signature. Thus, using only the chemical composition of stars we should be able to re-group the ones that once belonged to the same stellar aggregate. In Blanco-Cuaresma et al. (2015), we tested the technique on open cluster stars using iSpec (Blanco-Cuaresma et al. 2014a), we demonstrated their chemical homogeneity but we found that the 14 studied elements lead to chemical signatures too similar to reliably distinguish stars from different clusters. This represents a challenge to the technique and a new question was open: Could the inclusion of other elements help to better distinguish stars from different aggregates? With an updated and improved version of iSpec, we derived abundances for 28 elements using spectra from HARPS, UVES and NARVAL archives for the open clusters M67 and IC4651, and we found that the chemical signatures of...

  5. Actividad leishmanicida de los extractos metanólicos de cuatro ecotipos de Lepidium peruvianum, Chacón (Brassicaceae

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    Libertad Alzamora

    2013-05-01

    Full Text Available El tratamiento clásico de la leishmaniosis cutánea consiste en la inyección de 15-20 ampollas de Glucantine lo que ocasiona efectos secundarios, este hecho justifica la búsqueda de nuevos medicamentos motivando la presente investigación. El objetivo fue evaluar in vitro la actividad leishmanicida de los extractos metanólicos (EM de los ecotipos blanco, rojo, morado y negro de Lepidium peruvianum, Chacón (también conocida como Lepidium meyenii Walp., sobre el crecimiento de Leishmania braziliensis peruviana. Los promastigotes alcanzaron la fase de crecimiento exponencial al quinto día de cultivo a 27 ºC en el medio bifásico Columbia, suplementado con 15% de sangre desfibrinada de carnero, en ese momento se enfrentaron, por separado, con los EM a concentraciones de 50, 100, 200 y 400 μg/ml. Los recuentos se hicieron diariamente con cámara Neubauer. La máxima disminución de promastigotes se produjo al segundo día de enfrentamiento para el ecotipo morado (17,41% de viabilidad empleando 400 μg/ml. El efecto leishmanicida estaría relacionado con los alcaloides imidazólicos presentes en el EM. Se concluye que al segundo día de enfrentamiento con el EM, el ecotipo morado presenta la mayor actividad leishmanicida seguido del ecotipo blanco.

  6. Evaluación de características físicas y texturales de pandebono

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    Julián Alfredo López-Tenorio

    2012-07-01

    Full Text Available El pandebono es un producto libre de gluten típico de Colombia, elaborado principalmente con almidón agrio de yuca, queso y agua o leche. El queso es fundamental en su formulación, ya que le imparte al producto sus propiedades sensoriales y texturales características. En el estudio se evaluaron estas propiedades en pandebonos elaborados con dos tipos de quesos: costeño y blanco. Se realizaron análisis de perfil de textura, firmeza, fractura de la corteza y determinaciones de peso, volumen y densidad mediante un análisis de varianza de una sola vía. Para evaluar el sabor general se hizo una prueba sensorial de diferenciación de tipo triangular. La firmeza fue mayor en pandebono elaborado con queso costeño debido a que la miga fue más uniforme; mientras que la fractura de la corteza fue mayor en pandebono elaborado con queso blanco, reflejando un espesor de corteza mayor. En el análisis de perfil de textura no se encontraron diferencias significativas. Los pesos y los volúmenes fueron menores en pandebono elaborado con queso costeño, pero la densidad fue mayor. El sabor fue diferente, principalmente por las propiedades del queso costeño, el cual tiene un salado característico.

  7. Emisiones de gases desde el fondo del lago Nahuel Huapi, Patagonia

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    Pablo H Vigliano

    2011-12-01

    Full Text Available Emisiones de gas en el brazo Rincón del lago Nahuel Huapi, Patagonia, son descriptas y caracterizadas en función del análisis de señales blancos ecoicos que migran desde el fondo hacia la superficie. Dichos blancos identificados como burbujas de gas, provienen en apariencia de dos fuentes distintas. Una de las señales resulta consistente con emanaciones de gases de múltiples fuentes de emisión, las cuales conforman un campo sumergido que se extiende entre los 30 y 100 m de profundidad. La otra consistente en el surgimiento de burbujas, arrastre de fluidos restos orgánicos resuspendidos y sedimentos de fondo en zonas litorales someras. Para ambos casos se analiza el posible origen de las emisiones en relación con condiciones geológicas asociadas a procesos volcánicos locales y/o a procesos biológicos.

  8. Stellar variability in low-extinction regions towards the Galactic Bulge

    CERN Document Server

    Dominici, T P; Medina-Tanco, G A; Teixeira, R G; Benevides-Soares, P

    1999-01-01

    Intensive monitoring of low-extinction windows towards the galactic bulge has provided in the last years valuable information for studies about the dynamics, kinematics and formation history of this part of the galaxy, mainly by characterizing the bulge stellar populations (Paczy\\'nski, 1996). Since 1997, we have been conducting an intensive photometric-astrometric survey of the galactic bulge, with the monitoring of about 120000 stars in 12 windows uniformly distributed in galactic latitude and longitude (Blanco & Terndrup, 1989 e Blanco, 1988) never before submitted to this kind of survey. For this purpose, we have used the IAG/USP CCD Meridian Circle of the Abrahão de Moraes Observatory. The main objective of this work is the identification and classification of variable objects. In this work we present the set up and development of the necessary tools for a project like this and the posterior analysis of our data. We briefly describe the construction of a program to organize and detect variables amon...

  9. Nuevo pavimento de opus sectile hallado en Pollentia (Alcudia, Mallorca

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    Cau Ontiveros, Miguel Ángel

    2013-12-01

    Full Text Available This contribution presents the discovery of a black and white opus sectile in the forum of the Roman and late antique city of Pollentia (Alcudia, Mallorca. The pavement, associated to a building still under investigation, presents a simple geometric pattern combining black hexagons and white equilateral triangles that draw six-pointed stars. The scarce archaeological material found in the preparation of the mosaic suggests a terminus post quem of the 1st century A.D. for its construction. This pavement is the only example of opus sectile documented in situ in Pollentia and the only one from recent archaeological excavations in this city.Esta contribución recoge el hallazgo de un mosaico de opus sectile bícromo, en blanco y negro, descubierto en el foro de la ciudad romana y tardoantigua de Pollentia (Alcudia, Mallorca. El pavimento, asociado a un edificio aún en proceso de investigación, presenta un esquema geométrico sencillo, combinando hexágonos negros y triángulos equiláteros blancos que dibujan estrellas de seis puntas. El escaso material recuperado en la preparación del mosaico sugiere un terminus post quem del siglo I d.C. para su construcción. El pavimento constituye, el primer caso de opus sectile documentado in situ en Pollentia y el único ejemplo procedente de excavaciones recientes en la ciudad.

  10. José Joaquín de Mora, protestante ante la muerte / José Joaquín de Mora, Protestant Before Death

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    Alberto Zazo Esteban

    2016-04-01

    Full Text Available ¿Fue protestante José Joaquín de Mora? Quienes lo afirman asumen, quizá por semejanza con el caso de Blanco White, que Mora abandonó el catolicismo durante su primer exilio londinense. Apoyándose en sus propios textos, este artículo sostiene que la conversión no se produjo hasta la década de los cincuenta, cuando el autor contaba ya setenta años. Solo entonces se acumulan indicios como su presencia en los himnarios protestantes o la publicación anónima de un tratado anti-católico en 1855, cuya más que probable autoría desaconseja seguir dudando del reformismo de Mora. / Was José Joaquín de Mora a Protestant? Perhaps due to the similarities with Blanco White’s situation, those who believe in Mora’s conversion maintain that Mora abandoned Catholicism during his first exile inLondon. With Mora’s own texts as backing evidence, this article states that Mora’s conversion did not take place till the 1850’s, when Mora was already 70 years old. It is only then that enough signs, such as his likely authorship of an anti-Catholic tract published anonymously in 1855 or his presence in Protestant hymnals, lead us to consider Mora’s conversion as a reality.

  11. Paleomagnetism of Permian and Triassic rock, central Chilean Andes

    Science.gov (United States)

    Forsythe, Randall D.; Kent, Dennis V.; Mpodozis, Constantino; Davidson, John

    The first paleomagnetic data from Permian and Triassic formations west of the Andean divide are presented. Four formations of Permian or Triassic age in the central Chilean Andes have been investigated: two are located in the coastal ranges, and two are in the main cordillera. Of the formations in the main cordillera (Pastos Blancos and Matahuaico formations), only the Pastos Blancos Formation has yielded characteristic directions. While a fold test is absent, magnetizations are most likely secondary and yield pre-tilt corrected concordant inclinations, but yield declinations discordant 30° clockwise in comparison to the South American apparent polar wander path. Both formations from the coastal ranges (Cifuncho and Pichidangui formations) yielded stable directions. Postfolding magnetizations in the Cifuncho Formation also show declinations discordant 30° clockwise and concordant inclinations. The Pichidangui Formation has two stable components: one of postfolding age is concordant to apparent polar wander path data, and one of probable prefolding (Late Triassic) age is concordant in declination, but discordant in inclination. Further work is needed to better define the prefolding magnetizations in the Pichidangui Formation, but at present these preliminary results are the first paleomagnetic signs of displaced terranes along the Pacific margin of Chile. If correct, the results suggest that the Pichidangui Formation was some 15° of latitude farther south during the Late Triassic and had likely moved northward to its present latitudinal position with respect to cratonic South America by Middle to Late Jurassic.

  12. Bird conservation would complement landslide prevention in the Central Andes of Colombia

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    Natalia Ocampo-Peñuela

    2015-02-01

    Full Text Available Conservation and restoration priorities often focus on separate ecosystem problems. Inspired by the November 11th (2011 landslide event near Manizales, and the current poor results of Colombia’s Article 111 of Law 99 of 1993 as a conservation measure in this country, we set out to prioritize conservation and restoration areas where landslide prevention would complement bird conservation in the Central Andes. This area is one of the most biodiverse places on Earth, but also one of the most threatened. Using the case of the Rio Blanco Reserve, near Manizales, we identified areas for conservation where endemic and small-range bird diversity was high, and where landslide risk was also high. We further prioritized restoration areas by overlapping these conservation priorities with a forest cover map. Restoring forests in bare areas of high landslide risk and important bird diversity yields benefits for both biodiversity and people. We developed a simple landslide susceptibility model using slope, forest cover, aspect, and stream proximity. Using publicly available bird range maps, refined by elevation, we mapped concentrations of endemic and small-range bird species. We identified 1.54 km2 of potential restoration areas in the Rio Blanco Reserve, and 886 km2 in the Central Andes region. By prioritizing these areas, we facilitate the application of Article 111 which requires local and regional governments to invest in land purchases for the conservation of watersheds.

  13. Bloque de apartamentos, en Peñíscola, España

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    Marzo Fernández, Luis

    1967-07-01

    Full Text Available The first completed block, which is the first phase of a partial general scheme, contains flats with one, two and three bedroms, and floor areas of 62, 94 and 155 m2. Much importance has been attached to the design and distribution of terraces. Externally, the materials used are offwhite bricks, natural white stone and wood in its own colours. This provides a general colour pattern that harmonises well with the environment. The indoor surfaces have also been studied most carefully, all of which contributes to provide a general impression of quality and style that becomes easily evident.En el bloque concluido —primera fase de un Plan Parcial—, se distribuyen apartamentos de uno, dos y tres dormitorios, con superficies construidas de 62, 94 y 155 m2, respectivamente, habiéndose concedido mucha importancia a la zona de terrazas. Al exterior, los materiales empleados han sido: ladrillo blanco pajizo, piedra natural de color blanco y madera en su color, logrando una tonalidad acorde con todos los colores ambientes del lugar. También los interiores han sido extraordinariamente cuidados, todo lo cual contribuye a conseguir una armonía y un estilo de calidad, fácilmente apreciables.

  14. The genome sequence of an isolate of Indian citrus ringspot virus infecting the sweet orange in India.

    Science.gov (United States)

    K, Prabha; Baranwal, V K

    2012-11-01

    Whole-genome sequencing of an isolate of Mandarivirus infecting the sweet orange [Citrus sinensis (L) Blanco] in the western part of India (Pune) was done. The single-stranded positive-sense RNA genome of Indian citrus ringspot virus (ICRSV) Pune has 7,560 nucleotides (nt), excluding a poly(A) tail, comprised of 27.98% (2,115 nt) A, 32.12% (2,428 nt) C, 19.68% (1,488 nt) G, and 20.22% (1,529 nt) T residues. The genome, organized into six open reading frames (ORFs), shares 97.7% sequence identity with the complete genome of the ICRSV K1 isolate (AF406744.1) infecting the kinnow (Citrus reticulate Blanco, a hybrid between King and Willow mandarins) in north India. The ICRSV Pune genome formed a complex secondary structure with a large number of unpaired cytosine-rich regions, and recombination analysis highlighted potential recombination in the ICRSV genome.

  15. Formación Ciénaga Larga del Tontal: nomen novum para la Formación Casa de Piedra, Carbonífero, Precordillera de San Juan The Ciénaga Larga del Tontal Formation: nomen novum for the Casa de Piedra Formation, Carboniferous, Precordillera de San Juan

    Directory of Open Access Journals (Sweden)

    S. Barredo

    2003-06-01

    Full Text Available En el faldeo occidental de la sierra del Tontal y al este de la región de Rincón Blanco, Precordillera de San Juan, afloran sedimentitas de edad carbonífera originalmente denominadas Formación Casa de Piedra. Este nombre no es válido pues ha sido utilizado previamente en otra unidad de edad triásica. Se propone entonces para estas rocas el nombre de Formación Ciénaga Larga del Tontal, nomen novum. Estudios palinológicos, junto con el mapeo detallado y el análisis estructural de esta unidad han permitido corroborar parcialmente la edad y establecer con claridad la extensión areal de los afloramientos.A series of Carboniferous sedimentary rocks, initially named Casa de Piedra Formation crop out along the western slope of Sierra del Tontal, east of the Rincón Blanco area. That name is invalid because it was formerly used to identify a Triassic unit. We propose here to rename this Carboniferous rocks as Ciénaga Larga del Tontal Formation, nomem novum Palynological studies, together with a detailed mapping and structural analysis of the sedimentary succession permit confirmation, in part, the age of the sequence, and establish the areal extent of its development.

  16. The NOAO KOSMOS Data Handling System

    CERN Document Server

    Seaman, Rob

    2015-01-01

    KOSMOS and COSMOS are twin high-efficiency imaging spectrographs that have been deployed as NOAO facility instruments for the Mayall 4-meter telescope on Kitt Peak in Arizona and for the Blanco telescope on Cerro Tololo in Chile, respectively. The NOAO Data Handling System (DHS) has seen aggressive use over several years at both the Blanco and Mayall telescopes with NEWFIRM (the NOAO Extremely Wide-Field Infrared Imager) and the Mosaic-1.1 wide-field optical imager. Both of these instruments also rely on the Monsoon array controller and related software, and on instrument-specific versions of the NOAO Observation Control System (NOCS). NOCS, Monsoon and DHS are thus a well-tested software suite that was adopted by the KOSMOS project. This document describes the specifics of the KOSMOS implementation of DHS, in particular in support of the original two-amplifier e2v 2Kx4K CCD detectors with which the instruments were commissioned. The emphasis will be on the general layout of the DHS software components and th...

  17. Arte y medio ambiente: la naturaleza como experiencia artística

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    José Luis Lozano Jiménez

    2010-07-01

    Full Text Available La naturaleza y, en consecuencia, los espacios naturales han impulsado a los artistas a desarrollar un cierto tipo de proyectos artísticos que nacen de la interpretación de aquélla como material de creación plástica y como fuente de experiencia estética. La presente noticia resume las experiencias recogidas en la coordinación de los talleres que impartieron los artistas Ricardo Calero y Miguel Ángel Blanco en el curso-taller sobre intervenciones artísticas contemporáneas Arte y Medio Ambiente, que se desarrolló en el Palacio del Almirante de Granada del 1 al 11 de septiembre de 2009, dentro del Curso de Verano del Centro Mediterráneo de la Universidad de Granada.The nature and, therefore, natural areas have prompted artists to develop a certain kind of artistic projects arising from the interpretation of it as material for artistic creation and a source of aesthetic experience. This paper summarizes the experience in coordinating the workshops taught by artists Ricardo Calero and Miguel Angel Blanco in the course-workshop on contemporary artistic interventions Arte y Medio Ambiente, held at the Palacio del Almirante de Granada from 1 to September 11, 2009, in the Summer Course of the Centro Mediterráneo at the University of Granada.

  18. El obispo que estuvo a punto de ser procesado. Antonio Palenzuela y la «cárcel concordataria» de Zamora

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    Martín de Santa Olalla Saludes, Pablo

    2009-06-01

    Full Text Available The present article is centred in one of the conflicts less known about relations Catholic Church-Spanish State after Council Vatican II: the one who could be called «case Palenzuela», a matter of possible indictment that never went so far as to take place because of the events in spanish politics (the change in Presidency of Government, when Carlos Arias Navarro relieved murdered Admiral Carrero Blanco, betting for a line of dialogue opened with the Holy See (fastly frustrated by facts like «case Añoveros» that, in any case, never went so far as to obtain fruits of authentic trascendency.El presente artículo se centra en uno de los conflictos menos conocidos de las relaciones Iglesia-Estado en el Posconcilio: el que podríamos llamar caso Palenzuela, un asunto de posible enjuiciamiento que nunca llegó a producirse por el devenir de la política española, que conllevó un cambio en el Gobierno (Carlos Arias Navarro en lugar del fallecido Almirante Carrero Blanco en el que se apostó por una línea de diálogo abierto con la Santa Sede (rápidamente frustrada por hechos como el caso Añoveros que, sin embargo, nunca llegó a obtener frutos de auténtica trascendencia.

  19. 扁柑种质资源亲缘关系的ISSR分析%ISSR Analysis of Citrus reticulata Bianco cv.Bian Gan Germplasm Resources

    Institute of Scientific and Technical Information of China (English)

    郭丽英; 黄桂香; 何新华; 张树伟; 李峰; 陈虎

    2011-01-01

    为了准确了解广西扁柑资源现状、类型、分类地位及亲缘关系,从而更好地开发利用,本试验对35份柑橘资源,其中包括21份广西扁柑资源、2份越南柑资源及12份近缘的其它柑橘属资源进行ISSR-PCR分析.结果显示:10条引物共扩增出134条DNA片段,其中108条具有多态性,比率为81%.用UPCMA软件进行聚类分析,35份柑橘资源的遗传系数在0.64~1.00之间,在遗传系数为0.80处将35份材料划分为5类,其中所有扁柑类资源均和桠柑、南丰蜜桔聚在一类,初步证明扁柑类资源的分类地位应属于宽皮柑橘类的桔类.各扁柑资源间的相似系数在0.90以上,亲缘关系较近.%This study aimed at accurately understanding of resource status and types, taxonomic status and genetic relationship of Guangxi Citrus reticulata Blanco cv. Bian Gan, thus promoting its utilization. Thirty-five accessions of Citrus germplasm,including 21 Guangxi Citrus reticulata Blanco cv. Bian Gan species, 2 Vietnam samples and 12 closely related varieties were analysed by using inter-simple sequence repeat (ISSR) and the results showed that 134 fragments of DNA were amplified with 10 primers by using 1SSR-PCR, among which 108 (81%) fragments were polymorphic. The genetic distance was analyzed, and a tree diagram constructed by using UPGMA algorithm. The genetic similarity coefficients among the accessions were calculated with NTSYS-pc2.10e software and the values were between 0.64 and 1.00. The 35 materials could be clustered into 5 groups at the similarity coefficient level of 0.80, all Citrus reticulata Blanco cv. Bian Gan samples had the greatest genetic similarity with Ponkan and Nanfeng mandarin, indicating that Citrus reticulata Blanco cv. Bian Gan was mandarin. Citrus reticulata Blanco CV.Bian Gan had a near relationship because of a high index which was above 0.90.

  20. 朱红橘及其突变体牛肉红金橘的AFLP分析%Identification of Zhuhongju and Its Variant Line by AFLP Analysis

    Institute of Scientific and Technical Information of China (English)

    彭志军; 陈守一; 蔡永强; 李金强; 郭文武

    2011-01-01

    为弄清朱红橘红色突变体牛肉红金橘遗传的真实性,利用AFLP分子标记技术对朱红橘(Citrus reticulata Blanco)及其实生变异体牛肉红金橘进行了遗传鉴定.结果表明:从120对EcoRI/MseⅠ酶切引物中筛选出具有多态性的引物7对(MCO5E04,MCO4E01,MC04E02,MC04E03,MC04E04,MC04E06,MCO5E02);对朱红橘及其突变体牛肉红金橘进行AFLP扩增,共扩增出648条带,其中,72条具有多态性,多态性比例占11.11%;应用NTSYSpc 2.1软件统计分析,品种(系)间的遗传距离为0.0215853.牛肉红金橘与朱红橘在DNA水平上确实存在差异,牛肉红金橘为遗传上稳定的变异体,具有成为新的红肉品种的遗传基础,可作为新型材料加以保护和利用.%AFLP technique was used to determine DNA polymorphiam of Zhuhongju and its variant line Niurou Hongjinju ( Citrus reticulata Blanco) to study the genetie diversity of Zhuhongju ( Citrus neticulata Blanco) and its red variant line. The results showed that seven primer pairs( MC05-E04 .MCO4-E01 , MC04-E02 . MC04-E03 . MC04-E04 , MC04-E06 , MC05 -E02 ) were selected out of 120 pairs of primer combinations and 648 polymorphism bands were amplified , 72 of which were polymorphic. Ratio of polymorphic hands was 11. 11 % . The genetic diatance between ZhuhongjU and its variant line was 0. 0215853 by NTSYSpe 2. 1 cluster analysis. Niurouhongjinju was different with Zhuhongju at DNA level and was a genetically stable variant which had got genetic basis to be seleted as a new cultivar and thould be protected and utilized as a new material.