143 research outputs found
La necesaria digitalización de las pymes. Elaboración de un plan de marketing digital para quesos El molinero
Nuestra sociedad, cada vez más digitalizada y globalizada, está formada por individuos con un acceso constante a información en cualquier momento y lugar, con una mayor necesidad de interactuar y ser tenidos en cuenta. El entorno digital está caracterizado por su dinamismo y por la libertad de comunicación entre todos los miembros de la sociedad, resultando a veces un poco desbordante para las empresas si no se conocen los mecanismos y estrategias para lograr el éxito. Es por ello que existe una necesidad de dar a conocer planes, herramientas y acciones que mejoren la digitalización de las pymes y, en concreto del marketing digital. En este trabajo se ha elaborado un plan de marketing digital para una microempresa artesana y tradicional, quesos El Molinero, con el objetivo de que pueda servir de guía a otras empresas que busquen aumentar sus ventas, mejorar la notoriedad de la marca, fidelizar y atraer a mayor número de clientes.Our society, increasingly digitized and globalized, is formed by individuals with constant access to information at any time and place, with a greater need to interact and be taken into account. The digital environment is characterized by its dynamism and the freedom of communication between all members of society, sometimes proving to be a bit overwhelming for companies if they do not know the mechanisms and strategies to achieve success. That is why there is a need to publicize plans, tools and actions to improve the digitization of SMEs and, in particular, digital marketing. A digital marketing plan has been developed for a traditional artisan microenterprise, with the aim that it can serve as a guide to other companies seeking to increase sales, improve brand awareness, loyalty and attract more customers.Departamento de Organización de Empresas y Comercialización e Investigación de MercadosMáster en Administración de empresa
Muslim and Christian Women’s Perceptions of the Influence of Spirituality and Religious Beliefs on Motherhood and Child-Rearing: A Phenomenological Study
(1) Background: Spirituality is a factor that plays a role in decisions related to health and illness. When a woman becomes a mother, she undergoes physical, psychological, and social changes for which healthcare professionals must provide the necessary care. However, women may feel misunderstood and stigmatized when they carry out their religious practices and express their
spirituality related to motherhood. The aim of this study was to describe the experiences of women with Muslim and Christian religious ideologies on the influence of spirituality and religious beliefs in motherhood and child-rearing. (2) Methods: A descriptive phenomenological qualitative study with two groups of women of Islamic and Christian ideology, respectively. Three focus groups and in-depth interviews were conducted, recorded, transcribed, and analyzed with ATLAS.ti 7.0. An inductive analysis was carried out according to the Moustakas model. (3) Results: Three themes were identified: religious and cultural aspects that determine child-rearing, the influence of spirituality and family on the mother’s role, and the support received from healthcare personnel. (4) Conclusions: Spirituality and religious beliefs are manifested during motherhood and child-rearing in the form
of infant feeding, the need for their protection, or the need for support from mothers. Healthcare personnel must be able to offer culturally competent and spiritually respectful care. Patients should not be judged based on their spirituality
La conciliación : un reto para las familias de madres solas por elección
La conciliación entre la vida familiar, laboral y personal constituye en el
siglo XXI uno de los grandes retos para las familias y en especial para aquellas en las
que está al frente una madre sola. Con el objeto de conocer cómo abordan la tarea de la
conciliación las mujeres que han decidido tener un hijo o hija en solitario, realizamos
entrevistas en profundidad a 23 madres solas por elección. De ellas 16 eran adoptivas, 4
habían recurrido a la reproducción asistida y 3 tuvieron a sus criaturas de modo
biológico, a partir de una relación sin compromiso. Entre las distintas áreas exploradas
en el estudio, se efectuó un análisis cualitativo, partiendo de la Teoría Fundamentada, de
los modos en que estas madres vivían las dificultades de conciliación, así como de las
estrategias que desplegaban para facilitarla. Los resultados revelan que, para la mayoría
de estas mujeres, las tensiones de conciliación entre vida familiar y laboral constituyen
la principal fuente de estrés, aunque a la vez reconocen disponer de estrategias diversas
que la facilitan como cuidados informales y, en menor medida, cuidados formales. Así
mismo, la vida personal o bien queda prácticamente relegada o bien se reconvierte hacia
el ocio en casa
Tau aggregation
Here we revisit tau protein aggregation at primary, secondary, tertiary and quaternary structures. In addition, the presence of non-aggregated tau protein, which has been recently discovered, is also commented o
Corresponsabilidad en las tareas domésticas y de ciudad infantil en familias heteroparentales y homoparentales. Datos preliminares del proyecto Diversia
Una de las transformaciones más llamativas experimentada por nuestra sociedad en los últimos años, es la que está relacionada con el ámbito de la familia, principalmente en lo que se refiere a su estructura, componentes, roles que se desempeñan dentro de ella y dinámica de relaciones entre sus miembros. En el contexto del subproyecto DIVERSIA, cuyo objetivo principal es profundizar en el estudio de la conciliación de la vida laboral, familiar y personal, teniendo en cuenta la diversidad familiar, nuestro equipo se propuso analizar la corresponsabilidad de familias biparentales andaluzas. Se realizaron 40 entrevistas telefónicas: 20 a familias heteroparentales y 20 homoparentales. Los principales resultados apuntan a que existe, de forma genérica, un reparto desigual en tareas relacionadas con el cuidado de los niños y niñas (tanto en situaciones cotidianas como extraordinarias), así como en tareas domésticas. Se han encontrado diferencias entre ambos tipos de familias: así, las homoparentales comparten de un modo más igualitario el cuidado cotidiano de niños y niñas, y están más satisfechas con el reparto de tareas domésticas. Por último, el nivel de satisfacción de las personas entrevistadas con el reparto de tareas domésticas está relacionado con el número de ellas que realiza su pareja. Estos resultados van en la línea de los obtenidos en otras investigaciones, tanto nacionales como internacionales
Magnetic Resonance Imaging, texture analysis and regression techniques to non-destructively predict the quality characteristics of meat pieces
The quality of meat products is traditionally assessed by chemical or sensorial analysis, which are time consuming, need specialized technicians and destroy the products. The development of new technologies to monitor meat pieces using non-destructive methods in order to establish their quality is earning importance in the last years. An increasing number of studies have been carried out on meat pieces combining Magnetic Resonance Imaging (MRI), texture descriptors and regression techniques to predict several physico-chemical or sensorial attributes of the meat, mainly different types of pig ham and loins. In spite of the importance of the problem, the conclusions of these works are still preliminary because they only use the most classical texture descriptors and regressors instead of stronger methods, and because the methodology used to measure the performance is optimistic. In this work, we test a wide range of texture analysis techniques and regression methods using a realistic methodology to predict several physico-chemical and sensorial attributes of different meat pieces of Iberian pigs. The texture descriptors include statistical techniques, like Haralick descriptors, local binary patterns, fractal features and frequential descriptors, like Gabor or wavelet features. The regression techniques include linear regressors, neural networks, deep learning, support vector machines, regression trees, ensembles, boosting machines and random forests, among others. We developed experiments using 15 texture feature vectors, 28 regressors over 4 datasets of Iberian pig meat pieces to predict 39 physico-chemical and sensorial attributes, summarizing16,380 experiments. There is not any combination of texture vector and regressor which provides the best result for all attributes tested. Nevertheless, all these experiments provided the following conclusions: (1) the regressor performance, measured using the squared correlation (R2), is from good to excellent (above 0.5625) for 29 out of 39 attributes tested; (2) the WAPE (Weighted Absolute Percent Error) is lower than 2% for 32 out of 37 attributes; (3) the dispersion in computer predictions around the true attributes is lower or similar than the dispersion in the labeling expert’s for the majority of attributes (85%); and (4) differences between predicted and true values are not statistically significant for 29 out of 37 attributes using the Wilcoxon ranksum statistical test. We can conclude that these results provide a high reliability for an automatic system to predict the quality of meat pieces, which may operate on-line in the meat industries in the futureThe authors wish to acknowledge the funding received from the FEDER-MICCIN Infrastructure Research Project (UNEX-10-1E-402), Junta de Extremadura economic support for research group (GRU15173 and GRU15113), from the Xunta de Galicia (Centro singular de investigación de Galicia accreditation 2016–2019) and from the European Union (European Regional Development Fund — ERDF)S
Wet and dry African dust episodes over eastern Spain
The impact of the African dust on levels of atmospheric suspended particulate matter (SPM) and on wet deposition was evaluated in eastern Iberia for the period 1996–2002. An effort was made to compile both the SPM and wet episodes. To this end, the time series of levels of TSP and PM10 in Levantine air quality monitoring stations were evaluated and complemented with the computation of back trajectories, satellite images, and meteorological analysis. Wet deposition frequency was obtained from weekly collected precipitation data at a rural background station in which the African chemical signature was identified (mainly pH and Ca2+ concentrations). A number of African dust episodes (112) were identified (16 episodes per year). In 93 out of the 112 (13 episodes per year) the African dust influence caused high SPM levels. In 49 out of 112 (7 episodes per year), wet deposition was detected, and the chemistry was influenced by dust. There is a clear seasonal trend with higher frequency of dust outbreaks in May-August, with second modes in March and October. Wet events followed a different pattern, with a marked maximum in May. Except for one event, December was devoid of African air mass intrusions. On the basis of seasonal meteorological patterns affecting the Iberian Peninsula, an interpretation of the meteorological scenarios causing African dust transport over Iberia was carried out. Four scenarios were identified with a clear seasonal trend. The impact of the different dust outbreak scenarios on the levels of PM10 recorded at a rural site (Monagrega, Teruel, Spain) in the period 1996–2002 was also evaluated.This study was financed by the Spanish Ministries of the Environment and Science of Technology, project REN2001-0659
Optimization of the image acquisition procedure in low-field MRI for non-destructive analysis of loin using predictive models
The use of low-field magnetic resonance imaging (LF-MRI) scanners has increased in recent years. The low economic cost in comparison to high-field (HF-MRI) scanners and the ease of maintenance make this type of scanner the best choice for nonmedical purposes. However, LF-MRI scanners produce low-quality images, which encourages the identification of optimization procedures to generate the best possible images. In this paper, optimization of the image acquisition procedure for an LF-MRI scanner is presented, and predictive models are developed. The MRI acquisition procedure was optimized to determine the physicochemical characteristics of pork loin in a nondestructive way using MRI, feature extraction algorithms and data processing methods. The most critical parameters (relaxation times, repetition time, and echo time) of the LF-MRI scanner were optimized, presenting a procedure that could be easily reproduced in other environments or for other purposes. In addition, two feature extraction algorithms (gray level co-occurrence matrix (GLCM) and one point fractal texture algorithm (OPFTA)) were evaluated. The optimization procedure was validated by using several evaluation metrics, achieving reliable and accurate results (r > 0.85; weighted absolute percentage error (WAPE) lower than 0.1%; root mean square error of prediction (RMSEP) lower than 0.1%; true standard deviation (TSTD) lower than 2; and mean absolute error (MAE) lower than 2). These results support the high degree of feasibility and accuracy of the optimized procedure of LF-MRI acquisition. No other papers present a procedure to optimize the image acquisition process in LF-MRI. Eventually, the optimization procedure could be applied to other LF-MRI systems
Zero-Field SMM Behavior Triggered by Magnetic Exchange Interactions and a Collinear Arrangement of Local Anisotropy Axes in a Linear Co3 II Complex
A new linear trinuclear Co(II)3 complex with a formula of [{Co(μ-L)}2Co] has been prepared by self-assembly of Co(II) ions and the N3O3-tripodal Schiff base ligand H3L, which is obtained from the condensation of 1,1,1-tris(aminomethyl)ethane and salicylaldehyde. Single X-ray diffraction shows that this compound is centrosymmetric with triple-phenolate bridging groups connecting neighboring Co(II) ions, leading to a paddle-wheel-like structure with a pseudo-C3 axis lying in the Co−Co−Co direction. The Co(II) ions at both ends of the Co(II)3 molecule exhibit distorted trigonal prismatic CoN3O3 geometry, whereas the Co(II) at the middle presents an elongated trigonal antiprismatic CoO6 geometry. The combined analysis of the magnetic data and theoretical calculations reveal strong easy-axis agnetic anisotropy for both types of Co(II) ions (|D| values higher than 115 cm−1) with the local anisotropic axes lying on the pseudo-C3 axis of the molecule. The magnetic exchange interaction between the middle and ends Co(II) ions, extracted by using either a Hamiltonian accounting for the isotropic magnetic coupling and ZFS or the Lines’ model, was found to be medium to strong and antiferromagnetic in nature, whereas the interaction between the external Co(II) ions is weak antiferromagnetic. Interestingly, the compound exhibits slow relaxation of magnetization and open hysteresis at zero field and therefore SMM behavior. The significant magnetic exchange coupling found for [{Co(μ-L)}2Co] is mainly responsible for the quenching of QTM, which combined with the easy-axis local anisotropy of the CoII ions and the ollinearity of their local anisotropy axes with the pseudo-C3 axis favors the observation of SMM behavior at zero field
Accelerated amyloid deposition, neurofibrillary degeneration and neuronal loss in double mutant APP/tau transgenic mice
Even though the idea that amyloid β peptide accumulation is the primary event in the pathogenesis of Alzheimer's disease has become the leading hypothesis, the causal link between aberrant amyloid precursor protein processing and tau alterations in this type of dementia remains controversial. We further investigated the role of β-amyloid production/deposition in tau pathology and neuronal cell death in the mouse brain by crossing Tg2576 and VLW lines expressing human mutant amyloid precursor protein and human mutant tau, respectively. The resulting double transgenic mice showed enhanced amyloid deposition accompanied by neurofibrillary degeneration and overt neuronal loss in selectively vulnerable brain limbic areas. These findings challenge the idea that tau pathology in Alzheimer's disease is merely a downstream effect of amyloid production/deposition and suggest that reciprocal interactions between β-amyloid and tau alterations may take place in vivo.This project was funded in part by EC grant DIADEM QRLT-2000-026362, SAF2004-07802 and UTE project CIM
- …