2,964 research outputs found
A multidimensional approach to the resilience in older adults despite COVID-19.
Researchers have mainly focused on aging risk factors and COVID-19 consequences. However, older adults have
proved their ability to overcome adversities along their life. Resilience is a protective variable that dampens the
impact of stress. Based on MacLeod’s et al. (2016) approach, we aimed to analyze the relationship between older
adults’ resilience and COVID-19 related-stressors as well as their physical, mental, and social characteristics. Eight
hundred eighty-nine people aged 60 and over participated in this study. Older participants, women, having better
perceived health and not losing a loved one because of the virus were associated with more resilience. Moreover,
higher levels of gratitude, personal growth, life purpose and lower levels of depression were associated with greater
scores in resilience. This study offers a change of perspective in which aging is perceived from a positive viewpoint by
focusing on easily accessible resources that may help older adults to cope with adverse situations.post-print913 K
Intra-abdominal pressure and its relationship with markers of congestion in patients admitted for acute decompensated heart failure
Systemic congestion is one of the mechanisms involved in acute decompensated heart failure (ADHF). Increased intra-abdominal pressure (IAP), elicited by abdominal congestion, has been related to acute kidney injury and prognosis. Nonetheless, the link between diuretic response, surrogate markers of congestion and renal function remains poorly understood. We measured IAP in 43 patients from a non-interventional, exploratory, prospective, single center study carried out in patients admitted for ADHF. IAP was measured with a calibrated electronic manometer through a catheter inserted in the bladder. Normal IAP was defined as 12 mmHg at 72 h. In patients with ADHF, higher IAP at admission is associated with poorer baseline renal function and impaired diuretic response. The persistence of IAP at 72 h above 12 mmHg associates to longer length of hospital stay and higher 1-year all-cause mortality
Vector magnetic hysteresis of hard superconductors
Critical state problems which incorporate more than one component for the
magnetization vector of hard superconductors are investigated. The theory is
based on the minimization of a cost functional
which weighs the changes of the magnetic field vector within the sample. We
show that Bean's simplest prescription of choosing the correct sign for the
critical current density in one dimensional problems is just a particular
case of finding the components of the vector . is
determined by minimizing under the constraint , with a bounded set. Upon the selection of
different sets we discuss existing crossed field measurements and
predict new observable features. It is shown that a complex behavior in the
magnetization curves may be controlled by a single external parameter, i.e.:
the maximum value of the applied magnetic field .Comment: 10 pages, 9 figures, accepted in Phys. Rev.
Short-term effect of heat waves on hospital admissions in Madrid: Analysis by gender and comparision with previous findings
Global warming affects health through multiple exposures and
pathways, in and is turn deeply influenced by climate change. Every
year, several million deaths are caused by environmental factors,
many of which are aggravated by climate change or its drivers
(WHO, 2016). The adverse effects of climate change on health are
varied, complex and far-reaching. Essentially, climate change acts
as a multiplier for global health threats, compounding many of the
health issues communities already face. Disproportionately affect
the health of vulnerable groups and people in lower income
countries, thus exacerbating inequalities and gender differences
(Watts et al., 2018)
Critical state theory for nonparallel flux line lattices in type-II superconductors
Coarse-grained flux density profiles in type-II superconductors with
non-parallel vortex configurations are obtained by a proposed phenomenological
least action principle. We introduce a functional , which is minimized
under a constraint of the kind belongs to for the current density
vector, where is a bounded set. This generalizes the concept of
critical current density introduced by C. P. Bean for parallel vortex
configurations. In particular, we choose the isotropic case ( is a
circle), for which the field penetration profiles are derived when a
changing external excitation is applied. Faraday's law, and the principle of
minimum entropy production rate for stationary thermodynamic processes dictate
the evolution of the system. Calculations based on the model can reproduce the
physical phenomena of flux transport and consumption, and the striking effect
of magnetization collapse in crossed field measurements.Comment: The compiled TeX document length is 10 pages. Two figures (one page
each) are also included The paper is accepted for publication in Phys. Rev.
Let
Functional valoration of physical activity program in older adults with musculoskeletal disorders
Efecto de la adicción de extracto de vino tinto en la conservación de hamburguesas de cordero enriquecidas en ácidos grasos omega-3
Red wine is a great source of polyphenols compounds, which exert a high antioxidant capacity. The effect of red wine extract (EV) on the oxidative stability of lamb patties in terms of metmyoglobin (MetMb) formation, lipid oxidation, protein oxidation, and the stability of docosahexaenoic fatty acid (DHA) was investigated. Ground lamb meat enriched in ω3 fatty acids was divided into four treatments. Three treatments were supplemented with 3 doses of EV being 50 (EV1), 100 (EV2) and 200 (EV3) mg GAE/kg meat and, the last one, without antioxidant supplementation, was kept as control (C). The lamb patties were stored under MAP (70% O2/30% CO2) during 9 days. There was an interaction between treatment (L) and storage period (PC) for MetMb proportion (p<0.001) and DHA content (p<0.01). Groups EV2 and EV3 showed less MetMb proportion and higher DHA content at the end of storage period in comparison to groups EV1 and C. Lipid and protein oxidation was affected by storage period (p<0.001), increasing in all treatments.El vino tinto es una gran fuente de compuestos polifenólicos que presentan una gran capacidad antioxidante. El objetivo de este estudio fue evaluar el efecto de la adición de extracto de vino (EV) en la estabilidad oxidativa de hamburguesas de cordero, estudiando la formación de metamioglobina (MetMb), la oxidación lipídica, la oxidación proteica y el contenido en ácido docosahexaenoico (DHA). Se realizaron 4 lotes de carne picada de cordero, todos enriquecidos en ácidos grasos ω3. A tres lotes se les adicionó EV para obtener una concentración final de 50 (EV1), 100 (EV2) y 200 (EV3) mg GAE/kg de carne y el último lote, sin antioxidantes, se mantuvo como control (C). Las hamburguesas se conservaron en MAP (70% O2/30% CO2) durante 9 días. Se observó una interacción entre el lote (L) y el periodo de conservación (PC) para la proporción de MetMb (p<0,001) y el contenido en DHA (p<0,01). Los lotes EV2 y EV3 presentaron menor proporción de MetMb y mayor contenido en DHA que los lotes EV1 y C. La oxidación lipídica y proteica estuvo afectada por el periodo de conservación (p<0,001) aumentando en todos los tratamientos
Fine-root turnover rates of European forests revisited: an analysis of data from sequential coring and ingrowth cores
Background and Aims: Forest trees directly contribute to carbon cycling in forest soils through the turnover of their fine roots. In this study we aimed to calculate root turnover rates of common European forest tree species and to compare them with most frequently published values. Methods: We compiled available European data and applied various turnover rate calculation methods to the resulting database. We used Decision Matrix and Maximum-Minimum formula as suggested in the literature. Results: Mean turnover rates obtained by the combination of sequential coring and Decision Matrix were 0.86yr−1 for Fagus sylvatica and 0.88yr−1 for Picea abies when maximum biomass data were used for the calculation, and 1.11yr−1 for both species when mean biomass data were used. Using mean biomass rather than maximum resulted in about 30% higher values of root turnover. Using the Decision Matrix to calculate turnover rate doubled the rates when compared to the Maximum-Minimum formula. The Decision Matrix, however, makes use of more input information than the Maximum-Minimum formula. Conclusions: We propose that calculations using the Decision Matrix with mean biomass give the most reliable estimates of root turnover rates in European forests and should preferentially be used in models and C reportin
Interleukin-1 receptor associated kinase 1/4 and bromodomain and extra-terminal inhibitions converge on NF-κB blockade and display synergistic antitumoral activity in activated B-cell subset of diffuse large B-cell lymphoma with <i>MYD88</i> L265P mutation
- …