193 research outputs found
GARRYA OVATA BENTH. SUBSP. GOLDMANII (WOOTON & STANDL.) DAHLING (GARRYACEAE) AND BESCHORNERIA CALCICOLA GARCÍA-MENDOZA (AGAVACEAE): TWO NEW REPORTS FROM VERACRUZ, MEXICO.
New reports of Garrya ovata ssp. goldmanii(Wooton & Standl.) Dahling and Beschorneriacalcicola García-Mendoza are presented forthe state of Veracruz, Mexico. Both taxa werefound on karstic hills in the arid zone ofVeracruz near Tenextepec, Perote. Garryaovata ssp. goldmanii is a small shrub measuringup to 1.5 m tall, which contrasts considerablywith G. laurifolia Benth. ssp. laurifolia and G.laurifolia Benth. ssp. macrophylla alreadyregistered for Veracruz. These are shrubs ortrees from 2 to 10 m tall. Beschorneriacalcicola is a small rosettiform plant measuringup to 60 cm tall which contrasts with B.yuccoides K. Koch ssp. dekosteriana (K.Koch) García-Mendoza of Veracruz, which is alarge plant from 1 to 2.5 m tall, with large wideleaves.Se encontraron como nuevos registros paraVeracruz Garrya ovata ssp. goldmanii(Wooton & Standl.) Dahling y Beschorneriacalcicola García-Mendoza, ambas seencontraron en los cerros calizos de la zonaárida veracruzana, en los alrededores deTenextepec, Perote. Garrya ovata ssp.goldmanii es un arbusto pequeño que midehasta 1.5 m de alto, contrastandoconsiderablemente con G. laurifolia Benth. ssp.laurifolia y G. laurifolia Benth. ssp.macrophylla ya registradas de Veracruz, lascuales son arbustos o árboles de 2 a 10 m dealto. De la misma forma Beschorneriacalcicola es una planta pequeña, rosetiformeque mide hasta 60 cm de alto, en contraste conB. yuccoides K. Koch ssp. dekosteriana(K.Koch) García-Mendoza conocida paraVeracruz, que es una planta grande de 1- 2.5 mde alto, con hojas grandes y anchas
Diseño de un mini acueducto por bombeo eléctrico MABE para la comunidad las mercedes, municipio de Jalapa, departamento de nueva Segovia
Presenta el diseño de un mini acueducto por bombeo eléctrico MABE para la comunidad las mercedes, municipio de Jalapa, departamento de nueva Segovia tomando como criterio principal la viabilidad y sostenibilidad ya que quedara a cargo de la localidad
EVASPA (EVapotranspiration Assessment from SPAce) Tool: An overview
AbstractEvapotranspiration (ET) is a fundamental variable of the hydrological cycle and its estimation is required for irrigation management, water resources planning and environmental studies. Remote sensing provides spatially distributed cost-effective information for ET maps production at regional scale. We have developed EVASPA too for mapping ET from remote sensing data at spatial and temporal scales relevant to hydrological or agronomica studies.EVASPA includes several algorithms for estimating evapotranspiration and various equations for estimating the required input information (net radiation, ground heat flux, evaporative fraction…), which provides a way to assess uncertainties in the derivation of ET. The tool integrates data from various remote sensing sensors and it can be easily adapted to new sensors. To test the tool, evapotranspiration maps have been produced for the Crau-Camargue pilot site (south-eastern France), where several energy balance stations deployed in contrasted areas provide ground measurements. An overall description of the tool and first results of performance asse sment (comparison to ground data) are presented here
Malignant histiocytosis. Case report
Paciente varón de 14 años, procedente de Huancayo, que presenta un mes antes de su hospitalización intolerancia gástrica, ictericia, fiebre y síndrome linfoproliferativo. Se encontró en los exámenes de laboratorio pancitopenia severa por hemofagocitosis. El diagnóstico hematológico y anatomopatológico fue histiocitosis maligna. Se presenta este caso por ser una entidad infrecuente y una emergencia médica.Fourteen year-old male patient referred from Huancayo who presented one month gastric intolerance, jaundice, fever and a lymph proliferative syndrome. Laboratory tests revealed severe pancytopenia due to phagocytosis. Haematologic and anatomy-pathology diagnosis was human malignant histiocytosis. We present this case due to its low frequency and the emergency character of the disease
Criadero doméstico de codornices en el asentamiento humano Torres de San Borja – Moche – Trujillo – Perú
RESUMEN
La Responsabilidad Social Empresarial se
define como una contribución activa y
voluntaria para la mejora de la comunidad.
Es así que se decidió plantear varios
proyectos que pudiesen ser de utilidad y auto
sostenibles con el tiempo para los
pobladores del Asentamiento Humano Las
Torres de San Borja.
Durante el proceso de selección, escogimos
el proyecto de cornicultura debido a que
vimos como una característica que sea
viable.
Es así que después de la aprobación
necesaria en el curso de “Gestión Estratégica
de la Responsabilidad Social Empresarial”
decidimos emprender con este proyecto.
Antes de empezar la interacción con los
pobladores de Torres de San Borja,
decidimos empaparnos de la información
necesaria para poder explicarles a ellos lo
necesario para el trabajo.
Después, decidimos buscar familias
interesadas en participar en este proyecto.
Encontramos varios interesados, sin
embargo, decidimos aplicar un filtro
necesario para ejecutar este plan. Posterior,
se hizo capacitaciones a las familias
seleccionadas donde se mostraba los
requerimientos para la crianza de estas aves.
Finalmente, se les hizo entrega de cuarenta y
dos aves (42) y cuatro (4) jaulas a las
familias seleccionadas, donde ellas también
firmaron un acta de compromiso en las
cuales se comprometían a hacer cuidado de
estas aves y poner el 100% de su apoyo
para que este plan sea un apoyo extra a sus
actividades. Asimismo, se ha realizado dos
inspecciones en los días siguientes donde se
verificó el cuidado y alimentación de las aves
así como si se presentó algún problema con
estas.ABSTRACT
Business Social Responsibility is defined as
an active and voluntary contribution to get an
improvement for the community. By having
this knowledge, it was decided to present
various projects that could be useful and selfsustainable
during the time for the
Asentamiento Humano Torres de San Borja’s
settlers.
During the selection process, we chose the
corniculture project because we saw that it
would be accesible for us in order our
capacities.
Then, after we got the “Gestión Estratégica
de la Responsabilidad Social” class’s
learning we decided to launch this project.
Before we started to interact with the locals,
we decided to get some necessary
information for explain what we need from
them to make this happen.
After that, we looked for families that were
interested to participate in this project. We
found a lot of interested families, however we
decided to apply a filter to execute this plan in
the best way. Then, we made sessions to
train the families and where it showed what
they needed to raise this birds.
Finally, we gave them forty two birds and four
cages to the selected families. Also, they
signed a contract in which they compromised
to take care of this animals and give all the
energy necessary to made this project
became reality
IgG Anti-ghrelin Immune Complexes Are Increased in Rheumatoid Arthritis Patients Under Biologic Therapy and Are Related to Clinical and Metabolic Markers
Rheumatoid arthritis (RA) is a systemic autoimmune disease associated with increased risk of cardiovascular disease and metabolic alterations. The mechanisms underlying these alterations remain unclear. Ghrelin is a gastrointestinal hormone with potent effects on food intake, body weight, metabolism, and immune response. Recent studies reported the presence of anti-ghrelin autoantibodies in healthy subjects and the levels and affinity of these autoantibodies were altered in anorectic and obese individuals. In this cross-sectional study we analyzed anti-ghrelin autoantibodies in RA patients and evaluated its relationship with clinical, body-composition and metabolic parameters. Clinical measurements of RA patients included the disease activity score-28 (DAS-28), inflammatory biomarkers, autoantibodies (RF and anti-CCP), body composition, glucose and lipid profile. Serum ghrelin levels were measured by enzyme-linked immunosorbent assay (ELISA). Free and total anti-ghrelin autoantibodies quantification (IgG and IgA isotypes) was performed by in-house ELISA. RA patients had lower IgG anti-ghrelin autoantibodies levels and higher immune complexes percentage (IgG+ghrelin) compared to the control group, while the IgA anti-ghrelin autoantibodies showed no significant differences. In the bivariate analysis, the percentage of IgG anti-ghrelin immune complexes positively correlated with BMI and ghrelin whereas in the multivariate regression model, the variables associated were DAS-28, body weight, visceral fat, LDL-C and TG (R2 = 0.72). The percentage of IgA anti-ghrelin immune complexes positively correlated with RF and anti-CCP and the multivariate regression model showed an association with RF and body fat percentage (R2 = 0.22). Our study shows an increased percentage of IgG anti-ghrelin immune complexes in RA patients despite ghrelin levels were similar in both groups, suggesting an increase in the affinity of these autoantibodies toward ghrelin. The associations found in the multiple regression analysis for anti-ghrelin immune complexes support the previously reported functions of these natural autoantibodies as carriers and modulators of the stability and physiological effect of the hormone. However, in RA both the disease activity and the RF appear to influence the formation of these anti-ghrelin immune complexes
Measurement of the gluon fragmentation function and a comparison of the scaling violation in gluon and quarks jets
The fragmentation functions of quarks and gluons are measured in various three-jet topologies in Z decays from the full data set collected with the Delphi detector at the Z resonance between 1992 and 1995. The results at different values of transverse momentum-like scales are compared. A parameterization of the quark and gluon fragmentation functions at a fixed reference scale is given. The quark and gluon fragmentation functions show the predicted pattern of scaling violations. The scaling violation for quark jets as a function of a transverse momentum-like scale is in a good agreement with that observed in lower energy e+e− annihilation experiments. For gluon jets it appears to be significantly stronger. The scale dependences of the gluon and quark fragmentation functions agree with the prediction of the DGLAP evolution equations from which the colour factor ratio CA/CF is measured to be: CACF=2.26±0.09stat.±0.06sys.±0.12clus.,scale
Search for composite and exotic fermions at LEP2
A search for unstable heavy fermions with the DELPHI detector at LEP is reported. Sequential and non-canonical leptons, as well as excited leptons and quarks, are considered. The data analysed correspond to an integrated luminosity of about 48 pb^{-1} at an e^+e^- centre-of-mass energy of 183 GeV and about 20 pb^{-1} equally shared between the centre-of-mass energies of 172 GeV and 161 GeV. The search for pair-produced new leptons establishes 95% confidence level mass limits in the region between 70 GeV/c^2 and 90 GeV/c^2, depending on the channel. The search for singly produced excited leptons and quarks establishes upper limits on the ratio of the coupling of the excited fermion
Search for promptly produced heavy quarkonium states in hadronic Z decays
A search has been made for direct production of heavy quarkonium states in more than 3 million hadronicZ 0 decays in the 1991¿1994 DELPHI data. PromptJ/ψ, ψ(2S) andΓ candidates have been searched for through their leptonic decay modes using criteria based on the kinematics and decay vertex positions. New upper limits are set at the 90% confidence level forBr(Z 0→(Qq)X)/Br(Z 0→ hadrons) for various strong production mechanisms ofJ/ψ andΓ; these range down to 0.9×10−4. The limits are set in the presence of a small excess (∼1% statistical probability of a background fluctuation) in the sum of candidates from promptJ/ψ, ψ(2S),γ(1S),γ(2S) andγ(3S) relative to the estimated background
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