696 research outputs found
Influencia de las diferentes alturas de tacón en la marcha. Estudio goniométrico
En este estudio se ha pretendido analizar las variaciones
goniométricas en las articulaciones de la cadera,
rodilla y tobillo, caminando descalzo y con tacón de 2 y
4 centímetros de altura, en dos grupos de mujeres sin
patología y con edades comprendidas entre los 20 y 24
años: el primero acostumbradas a caminar con zapato de
tacón alto (9 casos) y el segundo acostumbrado a caminar
con calzado plano (21 casos). Para ello se ha utilizado
un sistema telemétrico de medida: «Sistema
Telemétrico Biológico de MIE Medical Rechearch
LTD». Se ha comprobado que existen diferencias
importantes en la forma individual de llevar zapato de
tacón alto, que varían con la experiencia. La máxima
flexión de cadera, que se produce en la fase de oscilación,
disminuye conforme aumenta la altura del tacón
en las personas acostumbradas al mismo, mientras que
aumenta en las no acostumbradas. La extensión máxima
de la rodilla disminuye conforme aumenta el tacón en
todas las personas estudiadas, es decir, tanto si tienen
experiencia como si no la tienen, mientras que la flexión
máxima se mantiene. A nivel del tobillo, la adaptación
al tacón se produce de forma muy dispar aunque llama
la atención la exageración de la flexión del mismo, en
las personas acostumbradas a llevar tacón, cuando caminan
descalzas
Surface and sub-surface thermal oxidation of thin ruthenium films
A mixed 2D (film) and 3D (nano-column) growth of ruthenium oxide has been experimentally observed for thermally oxidized polycrystalline ruthenium thin films. Furthermore, in situ x-ray reflectivity upon annealing allowed the detection of 2D film growth as two separate layers consisting of low density and high density oxides. Nano-columns grow at the surface of the low density oxide layer, with the growth rate being limited by diffusion of ruthenium through the formed oxide film. Simultaneously, with the growth of the columns, sub-surface high density oxide continues to grow limited by diffusion of oxygen or ruthenium through the oxide fil
LOS DESAFÍOS EN SALUD DEL MIGRANTE PARA LA ENFERMERÍA PROFESIONAL
Migration is a phenomenon that is increasing everyday; the search for better work opportunities and quality of life has lead to a massive movement of people from their homeland to new residences in different geographic regions. Both the politics of health care and the achievements of organizations dedicated to this phenomenon are still not well-known publicly.
The objective of this article is to analyze the health consequences that are raised by this phenomenon and the ways in which nursing professionals must face these, in order to deliver effective and efficient health care to the migrant patient, who in turn, needs to feel welcome in an often unknown environment.
In this article, some of Leininger´s affirmations concerning transculturality are highlighted and analyzed, leading to suggestions as to provide quality health attention to the migrant patient. The role of nursing towards the immigrant patient is also discussed, with special consideration placed on the relationship between the concepts of migration, culture, and health.La migración es un fenómeno social creciente. La búsqueda de mejores condiciones laborales y calidad de vida lleven a las personas a decidir movilizarse desde sus lugares de residencia habitual hacia zonas geográficas diferentes. Tanto las políticas de salud como los logros que han obtenido las organizaciones dedicadas a este fenómeno, son aún de poco conocimiento público.
El objetivo de este artículo es analizar las consecuencias para la salud que implica este fenómeno y las formas en que los profesionales de enfermería deben enfrentarlo, de manera de entregar un cuidado eficiente al paciente migrante, que necesita sentirse acogido en un ambiente muchas veces desconocido.
En este artículo se enfatizan algunos enunciados de Leininger acerca de la transculturalidad, que dan lugar a ciertas sugerencias para brindar una atención de calidad al paciente migrante. Se hace referencia además al rol de la enfermería hacia este tipo de población, considerando especialmente la relación existente entre migración, cultura y salud
Supercritical Fluid fractionation of mentha suaveolens: concentration of functional properties
Supercritial Antisolvent Fractionation process was optimiced for the concentration of Mentha suaveolens bioactives in two different fractions. Their composition was analysed with HPLC. The antimicrobial activity of these fractions was assayed. The SAF process fractionated M. suaveolens tincture in two enriched fractions in different bioactives concentrating those with antimicrobial activity in one of them.
El proceso de Fraccionamiento Supercrítico Antidisolvente fue optimizado para la concentrar bioactivos de Mentha suaveolens en dos diferentes fracciones. Su composición fue analizada con HPLC. La actividad antimicrobiana de estas fracciones fue ensayada. El proceso supercrítico permitió fraccionar la tintura de esta planta en 2 fracciones enrriqueciendolas en diferentes bioactivos y concentrando en uno de ellos los compuestos con actividad antimicrobiana.
 
Supercritical Fluid fractionation of mentha suaveolens: concentration of functional properties
Supercritial Antisolvent Fractionation process was optimiced for the concentration of Mentha suaveolens bioactives in two different fractions. Their composition was analysed with HPLC. The antimicrobial activity of these fractions was assayed. The SAF process fractionated M. suaveolens tincture in two enriched fractions in different bioactives concentrating those with antimicrobial activity in one of them.
El proceso de Fraccionamiento Supercrítico Antidisolvente fue optimizado para la concentrar bioactivos de Mentha suaveolens en dos diferentes fracciones. Su composición fue analizada con HPLC. La actividad antimicrobiana de estas fracciones fue ensayada. El proceso supercrítico permitió fraccionar la tintura de esta planta en 2 fracciones enrriqueciendolas en diferentes bioactivos y concentrando en uno de ellos los compuestos con actividad antimicrobiana.
 
From Construction Workers to Architects: Developing Scientific Research Capacity in Low-Income Countries
Solving global health challenges in a sustainable manner depends on explicitly addressing scientific capacity-building needs, as well as establishing long-term, meaningful partnerships with colleagues in the developing world
Comet Machholz (C/2004 Q2): morphological structures in the inner coma and rotation parameters
Extensive observations of comet C/2004 Q2 (Machholz) were carried out between
August 2004 and May 2005. The images obtained were used to investigate the
comet's inner coma features at resolutions between 350 and 1500 km/pixel. A
photometric analysis of the dust outflowing from the comet's nucleus and the
study of the motion of the morphological structures in the inner coma indicated
that the rotation period of the nucleus was most likely around 0.74 days. A
thorough investigation of the inner coma morphology allowed us to observe two
main active sources on the comet's nucleus, at a latitude of +85{\deg} \pm
5{\deg} and +45{\deg} \pm 5{\deg}, respectively. Further sources have been
observed, but their activity ran out quite rapidly over time; the most relevant
was at latcom. = 25{\deg} \pm 5{\deg}. Graphic simulations of the geometrical
conditions of observation of the inner coma were compared with the images and
used to determine a pole orientation at RA=95{\deg} \pm 5{\deg}, Dec=+35{\deg}
\pm 5{\deg}. The comet's spin axis was lying nearly on the plane of the sky
during the first decade of December 2004.Comment: 29 pages, 8 figures, 3 table
Precision on leptonic mixing parameters at future neutrino oscillation experiments
We perform a comparison of the different future neutrino oscillation
experiments based on the achievable precision in the determination of the
fundamental parameters theta_{13} and the CP phase, delta, assuming that
theta_{13} is in the range indicated by the recent Daya Bay measurement. We
study the non-trivial dependence of the error on delta on its true value. When
matter effects are small, the largest error is found at the points where CP
violation is maximal, and the smallest at the CP conserving points. The
situation is different when matter effects are sizable. As a result of this
effect, the comparison of the physics reach of different experiments on the
basis of the CP discovery potential, as usually done, can be misleading. We
have compared various proposed super-beam, beta-beam and neutrino factory
setups on the basis of the relative precision of theta_{13} and the error on
delta. Neutrino factories, both high-energy or low-energy, outperform
alternative beam technologies. An ultimate precision on theta_{13} below 3% and
an error on delta of < 7^{\circ} at 1 sigma (1 d.o.f.) can be obtained at a
neutrino factory.Comment: Minor changes, matches version accepted in JHEP. 30 pages, 9 figure
Color Octet Contribution to J/psi Photoproduction Asymmetries
We investigate photoproduction asymmetries in the framework of the
NRQCD factorization approach. It is shown that the color octet contribution
leads to large uncertainties in the predicted asymmetries which rules out the
possibility to precisely measure the gluon polarization in the nucleon through
this final state. For small values of the color octet parameters being
compatible with photoproduction data it appears possible that a
measurement of asymmetries could provide a new test for the NRQCD
factorization approach, on one hand, or a measurement of the polarized gluon
distribution from low inelasticity events , on the otherComment: 12 pages, LaTeX, with 6 figs. Final version published in Phys.Rev.
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