377 research outputs found
Massage in the prevention and treatment of delayed onset muscle soreness: an updated systematic review
El masaje es una de las terapias más utilizadas para aliviar el dolor muscular tardÃo (DMT). El objetivo del presente estudio fue determinar la efectividad del masaje en el tratamiento del DMT, para lo cual se llevó a cabo una revisión sistemática en las bases de datos, Pubmed, Scopus, SportDiscus, Web of Science y el buscador Google académico, usando las palabras clave delayed onset muscle soreness y exercise induced muscle damage combinado con massage. Se incluyeron en el estudio 23 artÃculos en los cuales el 78% mostró disminución del DMT mientras que en el restante 22% no hubo mejoras o bien empeoró. El análisis de los estudios permite concluir que el masaje es una terapia efectiva en el tratamiento del dolor muscular tardÃo
Deaths due to oral cancer in Chile in the period 2002-2012
Indexación: Scopus; Scielo.Background: Oral cancer is the 15th most common cause of cancer death in the world. In Chile, 1% of all cancer deaths are related to oral and pharyngeal cancer. Aim: To determine mortality rates for oral cancer in Chile and its regions between 2002-2012. Material and Methods: Deaths and their causes between the years 2002-2012 were obtained from the Chilean National Statistics Institute. Crude and adjusted rates by age and sex were calculated for the country and its regions. The denominator was Chilean population on June 30, 2012 and the WHO standard population. Results: In the period studied, 1,611 individuals with a mean age of 67.6 years (63% men) died because of oral cancer. The most common location of the tumor was the tongue in 27% of cases and the parotid gland in 16%. The adjusted mortality rate in Chile was 0.85/100,000 inhabitants (1.13 and 0.58 in men and women, respectively). The regions with the highest rates were Antofagasta (1.51), Aysén (1.22) and Magallanes (1.17). Deaths among men occurred at younger ages than women. Conclusions: Mortality rates due to oral cancer in Chile are lower than abroad. The highest rates observed in some regions may be influenced by environmental factors such as arsenic contamination in Antofagasta and the lack of specialists and specialized care centers in Aysén and Magallanes. © 2018, Sociedad Medica de Santiago. All rights reserved.https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0034-98872018000400487&lng=en&nrm=iso&tlng=e
Surfing the Net with a Mini-Cam: A Low Tech Approach to International Audio-Visual Communication at St. Mary\u27s University of San Antonio
El masaje en la prevención y tratamiento del dolor muscular tardÃo: una revisión sistemática actualizada
Massage is one of the most widely used therapies for relieving delayed onset muscle soreness (DOMS). The aim of the present study was to determine the effectiveness of massage in the treatment of DOMS, for which a systematic review was carried out in the databases, Pubmed, Scopus, SportDiscus, Web of Science and the Google Scholar search engine using the words key words delayed onset muscle soreness and exercise induced muscle damage combined with massage. This study included 23 articles in which 78% showed a decrease in DOMS while in the remaining 22% there were no improvements or gotten worse. The analysis of these studies allows to conclude that massage is an effective therapy in the treatment of delayed onset muscle soreness.El masaje es una de las terapias más utilizadas para aliviar el dolor muscular tardÃo (DMT). El objetivo del presente estudio fue determinar la efectividad del masaje en el tratamiento del DMT, para lo cual se llevó a cabo una revisión sistemática en las bases de datos, Pubmed, Scopus, SportDiscus, Web of Science y el buscador Google académico, usando las palabras clave delayed onset muscle soreness y exercise induced muscle damage combinado con massage. Se incluyeron en el estudio 23 artÃculos en los cuales el 78% mostró disminución del DMT mientras que en el restante 22% no hubo mejoras o bien empeoró. El análisis de los estudios permite concluir que el masaje es una terapia efectiva en el tratamiento del dolor muscular tardÃo
Cosmic ray spectrum and anisotropies from the knee to the second knee
We consider the scenario in which the knee in the cosmic ray spectrum is due
to a change in the escape mechanism of cosmic rays from the Galaxy from one
dominated by transverse diffusion to one dominated by drifts. We show that this
scenario explains not only the changes in spectral slope at the knee and at the
second knee, but can also account for the main characteristics of the observed
energy dependent anisotropy amplitude and phase of first harmonic in the energy
range between and eV. This provides a useful handle to
distinguish this diffusion/drift model from other scenarios proposed to explain
the knee in the spectrum.Comment: 13 pages, 3 figures; revised version with minor changes. To appear in
JCA
De Novo Unbalanced Translocations in Prader-Willi and Angelman Syndrome Might Be the Reciprocal Product of inv dup(15)s.
Superprocesses as models for information dissemination in the Future Internet
Future Internet will be composed by a tremendous number of potentially
interconnected people and devices, offering a variety of services, applications
and communication opportunities. In particular, short-range wireless
communications, which are available on almost all portable devices, will enable
the formation of the largest cloud of interconnected, smart computing devices
mankind has ever dreamed about: the Proximate Internet. In this paper, we
consider superprocesses, more specifically super Brownian motion, as a suitable
mathematical model to analyse a basic problem of information dissemination
arising in the context of Proximate Internet. The proposed model provides a
promising analytical framework to both study theoretical properties related to
the information dissemination process and to devise efficient and reliable
simulation schemes for very large systems
Orientational pinning and transverse voltage: Simulations and experiments in square Josephson junction arrays
We study the dependence of the transport properties of square Josephson
Junctions arrays with the direction of the applied dc current, both
experimentally and numerically. We present computational simulations of
current-voltage curves at finite temperatures for a single vortex in the array
(), and experimental measurements in
arrays under a low magnetic field corresponding to . We find that
the transverse voltage vanishes only in the directions of maximum symmetry of
the square lattice: the [10] and [01] direction (parallel bias) and the [11]
direction (diagonal bias). For orientations different than the symmetry
directions, we find a finite transverse voltage which depends strongly on the
angle of the current. We find that vortex motion is pinned in the [10]
direction (), meaning that the voltage response is insensitive to small
changes in the orientation of the current near . We call this
phenomenon orientational pinning. This leads to a finite transverse critical
current for a bias at and to a transverse voltage for a bias at
. On the other hand, for diagonal bias in the [11] direction the
behavior is highly unstable against small variations of , leading to a
rapid change from zero transverse voltage to a large transverse voltage within
a few degrees. This last behavior is in good agreement with our measurements in
arrays with a quasi-diagonal current drive.Comment: 9 pages, 9 figure
Comparative study of an Eden model for the irreversible growth of spins and the equilibrium Ising model
The Magnetic Eden Model (MEM) with ferromagnetic interactions between
nearest-neighbor spins is studied in dimensional rectangular geometries
for . In the MEM, magnetic clusters are grown by adding spins at the
boundaries of the clusters. The orientation of the added spins depends on both
the energetic interaction with already deposited spins and the temperature,
through a Boltzmann factor. A numerical Monte Carlo investigation of the MEM
has been performed and the results of the simulations have been analyzed using
finite-size scaling arguments. As in the case of the Ising model, the MEM in is non-critical (only exhibits an ordered phase at ). In
the MEM exhibits an order-disorder transition of second-order at a finite
temperature. Such transition has been characterized in detail and the relevant
critical exponents have been determined. These exponents are in agreement
(within error bars) with those of the Ising model in 2 dimensions. Further
similarities between both models have been found by evaluating the probability
distribution of the order parameter, the magnetization and the susceptibility.
Results obtained by means of extensive computer simulations allow us to put
forward a conjecture which establishes a nontrivial correspondence between the
MEM for the irreversible growth of spins and the equilibrium Ising model. This
conjecture is certainly a theoretical challenge and its confirmation will
contribute to the development of a framework for the study of irreversible
growth processes.Comment: 21 pages, 11 figure
Homobivalent Lamellarin-Like Schiff Bases: In Vitro Evaluation of Their Cancer Cell Cytotoxicity and Multitargeting Anti-Alzheimer's Disease Potential
Marine alkaloids belonging to the lamellarins family, which incorporate a 5,6-dihydro-1-phenylpyrrolo[2,1-a]isoquinoline (DHPPIQ) moiety, possess various biological activities, spanning from antiviral and antibiotic activities to cytotoxicity against tumor cells and the reversal of multidrug resistance. Expanding a series of previously reported imino adducts of DHPPIQ 2-carbaldehyde, novel aliphatic and aromatic Schiff bases were synthesized and evaluated herein for their cytotoxicity in five diverse tumor cell lines. Most of the newly synthesized compounds were found noncytotoxic in the low micromolar range (<30 μM). Based on a Multi-fingerprint Similarity Search aLgorithm (MuSSeL), mainly conceived for making protein drug target prediction, some DHPPIQ derivatives, especially bis-DHPPIQ Schiff bases linked by a phenylene bridge, were prioritized as potential hits addressing Alzheimer's disease-related target proteins, such as cholinesterases (ChEs) and monoamine oxidases (MAOs). In agreement with MuSSeL predictions, homobivalent para-phenylene DHPPIQ Schiff base 14 exhibited a noncompetitive/mixed inhibition of human acetylcholinesterase (AChE) with Ki in the low micromolar range (4.69 μM). Interestingly, besides a certain inhibition of MAO A (50% inhibition of the cell population growth (IC50) = 12 μM), the bis-DHPPIQ 14 showed a good inhibitory activity on self-induced β-amyloid (Aβ)1-40 aggregation (IC50 = 13 μM), which resulted 3.5-fold stronger than the respective mono-DHPPIQ Schiff base 9
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