1,220 research outputs found
Acrometástasis por cáncer de pulmón, diagnóstico simultáneo: a propósito de un caso
Las acrometástasis son hallazgos patológicos malignos muy poco frecuentes. La importancia de
estas lesiones reside en que en ocasiones puede ser la primera manifestación de una neoplasia oculta y avanzada
y que además por sus características puede confundirse con otras patologías esqueléticas y tratarse de manera
inadecuada.
Presentamos
el
caso
de
una
acrometástasis
localizada
en
la
falange
distal
del
dedo
de
una
mano
en
un paciente que previamente no había sido diagnosticado de cáncer de pulmón.Acrometastasis
are
rare
malignant
pathological
findings.
They
can
sometimes
be
the
first
mani
-
festation
of
an
occult
and
advanced
neoplasia
and
also
they
can
be
confused
with
other
skeletal
pathologies
and
treated
inappropriately.
We
report
a
case
of
acrometastasis
to
the
distal
phalanx
of
the
finger
of
the
hand
in
a
patient
who
previously
hadn't
been
diagnosed
with
lung
cancer
Influence of family-centered goals on dividend policy in family firms: A socioemotional wealth approach
Socioemotional wealth (SEW) preservation is likely to be a key determinant for family firms to shape their dividend policy. This paper analyzes how family-centered goals captured by SEW influence on dividend policy in private family firms, exploring as well the moderating role on these relationships of family involvement in management, generational stage, and firm hazard. Results indicate a negative association between SEW preservation and both the likelihood of giving dividends and the amount of dividend paid. This negative relationship is stronger when the CEO is a family member, in early generational stages and when the firm faces greater performance hazard. The amount of dividend paid is also lower when there are family members in other top management positions beyond the CEO. Thus, the evidence provided suggests that the existing heterogeneity regarding dividend policy in the context of privately held family firms is strongly driven by differences in SEW priorities
Socioemotional wealth and financial decisions in private family SMEs
This study focuses on heterogeneity in family firms by analyzing whether the non-economic aspects that meet the family?s affective needs, or socioemotional wealth (SEW), influence debt financing. In the context of private family small and medium-sized enterprises (SMEs), our results indicate that family firms which are more concerned about preserving their SEW have lower debt levels (total and financial debt) and that CEO gender plays an important moderating role, with female CEOs strengthening the negative effect of SEW preservation on debt financing. Moreover, when family firms are managed by the first generation, the SEW effect on financial debt is even more negative. The findings are consistent with SEW being the point of reference in family SMEs? financial decisions, and highlight the importance of the CEO and family generation in charge of the firm as moderators of the relationship between SEW preservation and debt financing
Anorèxia nerviosa i pràctica d’exercici físic per perdre pes
A hores d’ara es reconeix i s’accepta que l’anorèxia nerviosa és un trastorn del comportament alimentari de naturalesa multicausal, que en els últims anys, a causa de la difusió dels mitjans de comunicació, les aportacions dels professionals, les associacions que hi lluiten en contra o els relats de les joves que han mort com a conseqüència de la malaltia, ha sensibilitzat l’opinió pública, política i comença a fer-ho amb l’educativa. La intenció amb què emprenem aquesta investigació és la d’estimar la prevalença de la població de risc per a anorèxia nerviosa en adolescents de tots dos sexes que cursen de 1r a 4t d’Educació Secundària Obligatòria, en centres docents, tant privats com a públics, i corroborar que l’exercici físic que practiquen els nostres i les nostres adolescents va encaminat, fonamentalment, a perdre pes
Anorexia nerviosa y práctica de ejercicio físico para perder peso
Actualmente se reconoce y acepta que la anorexia nerviosa es un trastorno de la conducta alimentaria de naturaleza multicausal que en los últimos años por la difusión de los medios de comunicación, las aportaciones de los profesionales, las asociaciones que luchan contra ella o los relatos de las jóvenes que han fallecido a consecuencia de la enfermedad, ha sensibilizado a la opinión pública, política y empieza a hacerlo con la educativa. La intención con la que se acomete esta investigación es la de estimar la prevalencia de la población de riesgo para anorexia nerviosa en adolescentes de ambos sexos que cursan de 1.º a 4.º de Educación Secundaria Obligatoria en centros docentes tanto privados como públicos y corroborar cómo el ejercicio físico que practican nuestros y nuestras adolescentes está encaminado fundamentalmente a perder peso
Formalized HR practices and firm performance: An empirical comparison of family and non-family firms
©2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
This document is the Accepted version of a Published Work that appeared in final form in The International Journal of Human Resource Management. To access the final edited and published work see https://doi.org/10.1080/09585192.2017.1289547The influence of the family on human resource (HR) management structures creates important
idiosyncrasies with potential implications in terms of firm performance. Based on the agency and
socioemotional wealth (SEW) perspectives, this paper examines the formalization and effectiveness
of three basic HR practices – selection, training, and compensation – in different contexts of family
and non-family firms. Using a sample of 500 Spanish companies, the results show that a higher
degree of HR formalization has a positive influence on firm performance, confirming the negative
moderating influence of family involvement on the relationship between the formalization of training
practices and the firm performance. In addition, the findings indicate that the mediating role of
selection practices in the relationship between training and firm performance is smaller in family
than in non-family firm
LEAD ACCUMULATION AND SUBCELULAR DISTRIBUTION IN THE SCALLOP AEQUIPECTEN OPERCULARIS
The scallop Aequipecten opercularis accumulates high concentrations of lead
(Pb) in its tissues, what has led to the ban of its extraction in the Ría de Vigo (Galicia,
Spain) for feeding purposes. The Ría de Vigo presents higher levels of Pb than other
industrialized Galician Rías, mainly due to a ceramic factory that was operating in the
inner part of the Ría from 1961 to 2001 (Álvarez-Iglesias et al., 2003). This study aims at
testing the dynamics of bioaccumulation of Pb in this species, its tissue distribution and the
subcellular partitioning Pb, with the aim of enhancing our understanding of the
mechanisms that provoke the high Pb levels reached in its tissues. Scallops originating
from a clean area were exposed in cages in two places in the Ría de Vigo (one harbour and
a less impacted location) and 10 individuals were collected every month over a three
months period. The bioaccumulation of Pb and other metals was studied including its
distribution in several tissues: gills, digestive gland, kidney, muscle, gonad and rest. The
results showed that scallops accumulated similar levels of Pb in both locations, and that
about 76% of the Pb was found in the kidney. Subcellular partitioning of kidney samples
additionally showed that around a 60-70% of Pb in the kidneys was included in metal rich
granules, indicating that this is probably the reason of the high levels of Pb observed in this
species, as occurs for other bivalves (Darriba and Sánchez-Marín, 2013). Concerning other
metals analysed, it was observed that Zn was also mainly accumulated in the kidney, while
Cd content was highest in the digestive gland. Cu and Ni were preferentially accumulated
in the digestive gland or kidney, depending on the location, and As was mainly found in
the muscle. Results will be discussed on the basis of metal pollution in both locations and
according to detoxification strategies used by scallops
Prácticas de recursos humanos en la empresa familiar: profesionalización y efecto sobre el desempeño
La influencia de la familia en las estructuras de gestión del capital humano de la empresa crea un marco único y diferente, con importantes implicaciones en términos de eficiencia. En este trabajo se examina la orientación de las principales prácticas de recursos humanos –selección, formación y retribución- y sus efectos sobre el desempeño organizativo en función de la presencia de la familia en la propiedad y dirección del negocio. Utilizando una muestra de 500 empresas españolas, los resultados indican que en las empresas de dirección familiar se aplican unas prácticas de recursos humanos menos formalizadas y profesionalizadas que en las empresas familiares de dirección externa. Asimismo, se comprueba una contribución de las prácticas de recursos humanos a través de la selección que se encuentra moderada negativamente por el carácter familiar. 
Comparación entre la respuesta de la actividad muscular lumbar en plataforma vibratoria y en ejercicio clásico de squat isométrico en 30º y 60º. (A comparison of the lumbar muscle activity responsein 30º and 60º isometric squat between whole-body vibration and a classic exercise).
<p align="justify">Whole-body vibration (WBV) has improved as a variety of exercises, so it is necessary know muscles responses to the vibration stimulus.The aim of this work was to study and to compare the change in muscle activation in the lumbar area and lower body between the whole-body vibration exercise and classic strength exercises in isometric squat.23 subjects were exposed to six different loads in one of each exercise mode: vibration or classic strength. Both exercises were performed at 30º and 60º semi-squat position. Muscle activity of the lower body and lumbar area was measured using surface electromyography activity (EMG).The results showed that the response of lumbar area in WBV was lower than in the classic strength exercise at the same value of lower body sEMG. Lumbar sEMG was highest for the classic exercise. Moreover, during 30º squat sEMG was higher than during 60ºsquat.</p>Resumen<p align="justify">El aumento del uso de la plataforma vibratoria como forma de realizar ejercicio conlleva la necesidad de conocer las respuestas musculares al estímulo de la misma.El objetivo de este trabajo ha sido estudiar y comparar la respuesta de la activación muscular de la zona lumbar y del tren inferior en el trabajo de plataforma vibratoria con el trabajo clásico de fuerza en un squat isométrico.23 sujetos fueron sometidos a 6 condiciones de vibración y a 6 de un trabajo clásico de pesas. Se analizó la sEMG del tren inferior y de la zona lumbar en un trabajo isométrico de un squat con flexión de 30º y 60º de rodilla.Los resultados muestran que para un mismo valor de sEMG del tren inferior, los valores de sEMG de la zona lumbar son menores en el ejercicio vibratorio. Existiendo en el trabajo de pesas una mayor exigencia en la zona lumbar. Además, con una flexión de 30º la activación muscular es mayor en todas las condiciones. (p<0,05)</p
Tumor desmoide extraabdominal en rodilla: a propósito de un caso
Los tumores desmoides o fibromatosis agresiva son neoplasias de partes blandas muy poco frecuentes.
Son localmente agresivos y recurrentes, aunque carecen de potencial metastásico. La forma extraabdominal
es la más infrecuente y asienta habitualmente sobre la cintura pélvica o escapular. Presentamos el caso de
una paciente a la que se le diagnosticó un tumor desmoide extraabdominal en la rodilla izquierda que se manifestó
inicialmente como una tumoración dolorosa.Desmoid tumours or aggressive fibromatosis are rare neoplasm of soft tissues. They are locally
aggressive and recurrent, although they have no metastatic potential. The extra-abdominal appearance is the less
common and tumors are frequently located around pelvic or scapular vicinity. We report a case of a patient who
suffered an extra-abdominal desmoid tumor in her left knee that arose as a painful bump
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