1,018 research outputs found

    The presidency of the governing boards of cooperatives in Spain: a gendered approach

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    International cooperative values and principles are guidelines that could lead cooperatives towards greater gender equality in the decision-making process. Stimulated by the interest in cooperatives and by the growing demand for advocating a faster increase in the presence of chairwomen in boardrooms, this research aims to analyse the impact of the gender of the cooperative president in some variables related to financial and employment ratios, corporate governance and other characteristics of the organization in Spain. Information about the major Spanish cooperative entities has been collected and analyzed to carry out the empirical study. We find that cooperatives with higher liquidity ratio, higher number of employees, higher percentage of female employees, higher employee costs divided by operating revenue ratio, lower indebtedness, and fewer years since the appointment of the president have a higher probability of belonging to the group of cooperatives with a board chaired by a woman. Cooperatives headed by women exhibit a higher ratio of staffing costs to operating revenues, which could indicate an increased intensity of cooperative principles and values related with the primacy of the economic welfare of workers over the economic benefits

    Barriers to innovation in Spanish rural Small and Medium-Sized Enterprises

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    In the context of globalisation, innovation has been recognized as a key driver of Europe’s national and regional economies, whether rural or not. Nevertheless, rural firms are considered less innovative than firms in urban agglomerations. Rural areas represent three-quarters of the land of the OECD countries and are home to a quarter of its population. Moreover, small and medium enterprises (SMEs) are the backbone of the economy. This paper reviews the barriers to innovation indicated throughout literature, brings out what constitutes the main barriers in rural SMEs and presents an understanding of some of the factors that determine the position of these firms in responding to new requirements. Data were collected through a questionnaire for managers of 511 SMEs in a rural area of Spain. Statistical analysis was performed with SPSS software package. The results identify key factors that hinder innovation in rural SMEs, namely those related to economic reasons, such as high costs of the innovation or the difficulty to obtain financial resources, and risk aversion issues. Specific research related to the study of innovation barriers in SMEs firms in rural areas is limited. Therefore, this paper fills this research gap by expanding the body of knowledge in the field of rural SMEs innovation and provides further evidence on this phenomenon. The results also offer relevant insights for managers and policy makers when formulating and implementing strategies to diminish innovation barriers in rural SMEs

    Generalized Arago-Fresnel laws: The EME-flow-line description

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    We study experimentally and theoretically the influence of light polarization on the interference patterns behind a diffracting grating. Different states of polarization and configurations are been considered. The experiments are analyzed in terms of electromagnetic energy (EME) flow lines, which can be eventually identified with the paths followed by photons. This gives rise to a novel trajectory interpretation of the Arago-Fresnel laws for polarized light, which we compare with interpretations based on the concept of "which-way" (or "which-slit") information.Comment: 14 pages, 6 figure

    Aqueous humor neutrophil gelatinase-associated lipocalin levels in patients with idiopathic acute anterior uveitis

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    Purpose: The purpose of this study was to evaluate the levels of neutrophil gelatinase-associated lipocalin (NGAL) in the aqueous humor in eyes with idiopathic acute anterior uveitis (AAU). Methods: A comparative control study. Aqueous humor was collected from 20 eyes of 20 patients with idiopathic AAU. The control group included 20 aqueous samples from 20 patients about to undergo cataract surgery and without any other ocular or systemic diseases. The level of NGAL was determined with a commercially available ELISA kit. Results: The concentration of NGAL in aqueous humor was markedly higher in patients with idiopathic AAU than in control subjects (Mann–Whitney U test, p<0.001). The level of NGAL was 139,197.38±183,426.36 (mean±SD) pg/ml in eyes with AAU and 3,169.96±1,595.78 pg/ml in the eyes of the control group. Conclusions: The aqueous humor NGAL level is increased in eyes with idiopathic AAU. These results imply that NGAL is associated with the regulation of inflammation in patients with AAU and could be used as a biomarker of ocular inflammation and immunomodulatory treatment response.Medicin

    Degradation of buried ice and permafrost in the Veleta cirque (Sierra Nevada, Spain) from 2006 to 2013 as a response to recent climate trends

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    The Veleta cirque is located at the foot of the Veleta peak, one of the highest summits of the Sierra Nevada National Park (southern Spain). This cirque was the source of a glacier valley during the Quaternary cold periods. During the Little Ice Age it sheltered a small glacier, the most southerly in Europe, about which we have possessed written records since the 17th century. This glacier still had ice residues until the mid-20th century. This ice is no longer visible, but a residue persists along with discontinuous permafrost trapped under strata of rock blocks that make up an incipient rock glacier. From 2006 to 2013, this rock glacier was monitored by measurement of the temperature of the active layer, the degree of snow cover on the ground, movements of the body of the rock glacier and geophysical prospection inside it. The results show that the relict ice and trapped permafrost have been steadily declining. The processes that explain this degradation occur in chain, starting from the external radiation that affects the ground in summer, which is when the temperatures are higher. In effect, when this radiation steadily melts the snow on the ground, the thermal expansive wave advances into the heart of the active layer, reaching the ceiling of the frozen mass, which it then degrades and melts. In this entire linked process, the circulation of meltwaters fulfils a highly significant function, as they act as heat transmitters. The complementary nature of these processes explains the subsidence and continuous changes in the entire clastic pack and the melting of the frozen ceiling on which it rests. This happens in summer in just a few weeks. All these events, in particular the geomorphological ones, take place on the Sierra Nevada peaks within certain climate conditions that are at present unfavourable to the maintenance of snow on the ground in summer. These conditions could be related to recent variations in the climate, starting in the mid-19th century and most markedly since the second half of the 20th century. The work and results highlight the climate sensitivity of the peaks of the Sierra Nevada to the effect of climate change and its impact on the dynamics of ecosystems, which is a benchmark for evaluating the current evolution of landscapes of Mediterranean high mountains.We are grateful to the research projects 018/2007 of the Autonomous Organisation of National Parks and CSO2012-30681 from the Ministry of Economy and Competition

    Climatic Feedbacks and Desertification: The Mediterranean Model

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    Abstract Mesometeorological information obtained in several research projects in southern Europe has been used to analyze perceived changes in the western Mediterranean summer storm regime. A procedure was developed to disaggregate daily precipitation data into three main components: frontal precipitation, summer storms, and Mediterranean cyclogenesis. Working hypotheses were derived on the likely processes involved. The results indicate that the precipitation regime in this Mediterranean region is very sensitive to variations in surface airmass temperature and moisture. Land-use perturbations that accumulated over historical time and greatly accelerated in the last 30 yr may have induced changes from an open, monsoon-type regime with frequent summer storms over the mountains inland to one dominated by closed vertical recirculations where feedback mechanisms favor the loss of storms over the coastal mountains and additional heating of the sea surface temperature during summer. This, in turn, favors Mediterranean cyclogenesis and torrential rains in autumn–winter. Because these intense rains and floods can occur anywhere in the basin, perturbations to the hydrological cycle in any part of the basin can propagate to the whole basin and adjacent regions. Furthermore, present levels of air pollutants can produce greenhouse heating, amplifying the perturbations and pushing the system over critical threshold levels. The questions raised are relevant for the new European Union (EU) water policies in southern Europe and for other regions dominated by monsoon-type weather systems

    Are there differences in acute phase inflammation markers regarding the type of heart failure?

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    This study aimed to determine if there are differences in inflammatory markers in the acute phase between systolic heart failure and heart failure with preserved systolic function. One hundred and thirty-one patients with acute heart failure were recruited consecutively. At admission, plasma fibrinogen, C-reactive protein, sialic acid, von Willebrand factor, vascular endothelial growth factor, interleukin-6 and NTproBNP were all evaluated. If the ejection fraction was 45% or over patients were included in the HF-PSF group; the remaining patients were included in the SHF group. The HF-PSF patients were older (72±10 vs 63±12 years, P<0.001), presented a higher rate of atrial fibrillation (56.1 vs 21.3%, P<0.001), and had a lower rate of hemoglobin (12.2±2 vs 13.3±2.1 g/dL, P<0.01). No significant differences were observed in the inflammation markers analyzed among SHF and HF-PSF groups. In the acute phase of heart failure there is a marked elevation of inflammatory markers but there are no differences in the inflammatory markers analyzed between the two different types of heart failure
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