1,054 research outputs found
CONTRIBUCIÓN DEL CAPITAL SOCIAL EN LA MICROEMPRESA RURAL
The present study research identified the level of social capital in a small enterprise and its impact in the company itself. In Latin America, the importance of this concept lies in its relevance because diverse disciplines uses it as a reference setting, today it is used not only as part of political science and sociology, but also as part of the organization theory, economics, human behavior and management. It put emphasis in the relationships among people, among organizations and not in the individuals as isolated subjects. One of its advantages is that the social capital can contribute in the analysis of the small local communities from a social perspective and economical development. Because of the nature of the data handled in this study a qualitative design was adopted, and it was used the method case study, selecting for that matter the small enterprise Koolel Kab S. de R.L. Mi. The results of the study show that the origin of enterprise was an initiative of the partners who share the same objectives. It was verified the presence of social capital, which has permitted them to access to new information, to improve its commercialization, to obtain more funds, to develop new products and improve its production and sales. Based on these, we can conclude that social capital has contributed mainly to improve aspects such as learning and knowledge generation, innovation and management processes.Social capital, small enterprise, social development, network, learning, knowledge generation and innovation., Agribusiness,
Localization of Leaks in Water Distribution Networks using Flow Readings
This paper presents a novel approach to localize single and sequential leaks based on the lumped model of a water distribution network (WDN). The principal features of such a model are: a new friction term expressed as a power-law and a suitable representation expressed only in terms of the flow rate. From the response of this model and flow rate measurements at junctions of the pipelines composing the WDN, a set of residuals1 is proposed for each pipeline. The residuals closest to zero will indicate the leak positions in the faulty pipelines. We present some simulation tests based on data from PipelineStudio® from Energy Solutions to illustrate the suitability of our method
Brain Sparing Effect on Neurodevelopment in Children with Intrauterine Growth Restriction: A Systematic Review.
Background: Fetal growth restriction (FGR) is a pregnancy complication. Multiple studies have connected FGR to poor cognitive development, behavior disorders, and academic difficulties during childhood. Brain sparing has traditionally been defined as an adaptive phenomenon in which the brain obtains the blood flow that it needs. However, this adaptive phenomenon might not have a complete protective effect. This publication aims to systematically review the consequences of brain redistribution on neurodevelopment in children who presented with placental intrauterine growth restriction. Methods: We performed a systematic review according to PRISMA guidelines. It included studies on intrauterine growth restriction or small-for-gestational-age (SGA) fetuses, which middle cerebral artery was measured, and neurodevelopment assessed during childhood. PUBMED and EMBASE databases were searched for relevant published studies. Results: Of the 526 studies reviewed, only 12 were included. Brain sparing was associated with poor cognitive function and lower scores in IQ. Cerebral redistribution was related to better executive function and better behavior at 4 years old but not at 12 years old. Conclusions: We can assume that fetal brain sparing could not be a fully protective phenomenon. We could not find clinical differences in behavioral and executive functions because the results were heterogeneous. Some cognitive abilities could be affected in FGR brain sparing fetuses
Histological Features of the Olive Seed and Presence of 7S-Type Seed Storage Proteins as Hallmarks of the Olive Fruit Development
The production of olive oil is an important economic engine in the Mediterranean area. Nowadays, olive oil is obtained mainly by mechanical processes, by using the whole fruit as the primary raw material. Although the mesocarp is the main source of lipids contributing to olive oil formation, the seed also contributes to the olive oil composition and attributes. The olive seed is also becoming an interesting emerging material itself when obtained after alternative processing of the olive fruit. Such seed is used for the production of differential oil and a unique flour among other bioactive products, with increasing uses and applications in cosmetics, nutrition, and health. However, olive seed histology has been poorly studied to date. A complete description of its anatomy is described for the first time in the present study by using the ‘Picual’ cultivar as a model to study the development of the different tissues of the olive seed from 60 to 210 days after anthesis. A deep analysis of the seed coats, endosperm storage tissue and the embryo during their development has been performed. Moreover, a panel of other olive cultivars has been used to compare the weight contribution of the different tissues to the seed, seed weight variability and the number of seeds per fruit. In addition to the histological features, accumulation of seed storage proteins of the 7S-type (β-conglutins) in the seed tissues has been assessed by both biochemical and immunocytochemical methods. These hallmarks will help to settle the basis for future studies related to the location of different metabolites along the olive seed and mesocarp development, and therefore helping to assess the appropriate ripening stage for different commercial and industrial purposes
Spanish multicenter real – life registry of retrievable vena cava filters (REFiVeC)
Background
The treatment of venous thromboembolic disease the treatment of choice is systemic anticoagulation. However, the interruption of the inferior vena cava with filters has been recommended when anticoagulation fails or there is a contraindication. Due to the rising inferior vena cava filter (IVCF) complications, physicians are encouraged to retrieve them when there is no longer recommended. In daily practice, it may be a difficult close follow-up of these patients. In this study, the primary objective was to evaluate the IVCF retrieval rate of all implanted filters in a Spanish registry. Secondary objectives were to analyze the causes of failed retrieval, procedure-related complications, and outcomes at a 12-month follow-up.
Results
Three hundred fifty-six vena cava filters were implanted in 355 patients. The types of filter were: Gunther Tulip (Cook Medical) 160 (44.9%), Optease (Cordis) 77 (21.6%), Celect (Cook Medical) 49 (13, 7%), Aegisy (Lifetech Scientific) 33 (9.2%), Option ELITE (Argon Medical devices) 16 (4.4%), Denali filter (BD Bard) 11 (3.08%), ALN filter (ALN) 10 (2.8%).
Removal was achieved in 274/356 (76,9%). eighty-two (23,1%) IVCF were not retrieved due to the following: 41 (11,5%) patients required ongoing filtration, 24 IVCF (6,7%) patients died before retrieval, and 17 (4,7%) impossibility of retrieval because of a tilted and embedded filter apex. There were no major complications observed.
Conclusions
The global retrieval rate of IVCF was achieved in 76.9%, and the adjusted retrieval rate was of 94.15% with no major complications. IVCF tilting was associated with failure of filter removal in less than 5% of cases. This study demonstrates that the retrieval procedure of IVCF is controlled by the clinician and not by the interventional radiologist
Ocratoxina A en plasma humano: nuevos datos de exposición en España
Se ha investigado la presencia de Ocratoxina A en plasma humano en la provincia de Granada, por medio del análisis de 83 muestras obtenidas de mujeres residentes en esa zona. El método analítico está basado en la extracción líquido-líquido, con posterior análisis por cromatografía líquida de alta resolución (HPLC) con detección de fluorescencia. Este método analítico ha sido validado obteniéndose un límite de detección de 0,21 ng/mL. Se ha detectado la presencia de ocratoxina A en un 72% de las muestras. La concentración media hallada ha sido de 0,63 ng/mL, con una desviación estándar de 0,41 ng/mL y un rango de concentraciones entre 0,11 ng/mL y 6,96 ng/mL. Estos resultados son equiparables a los encontrados previamente en otras dos zonas del norte y del centro de España, y en los países del entorno. El análisis estadístico de los datos, por medio de un test de Kruskal-Wallis (n = 70; x2 = 4,591; p = 0,597), no evidenció que existiera ninguna diferencia significativa de los niveles plasmáticos de ocratoxina A en relación con la época del año en la que fueron extraídas las muestras.
Estos resultados constituyen una prueba más de la exposición generalizada de la población española a esta micotoxina, si bien el valor de la ingesta diaria de ocratoxina A calculado a partir de la concentración media hallada en el presente estudio, es muy inferior al máximo recomendado por el Comité de expertos sobre aditivos alimentarios de la Organización Mundial de la Salud
p38γ/δ activation alters cardiac electrical activity and predisposes to ventricular arrhythmia
We gratefully acknowledge L. Sen-Martín, J. Alegre-Cebollada
(CNIC, Madrid) and L. Carrier (University Medical Center HamburgEppendorf and DZHK, Hamburg) for the cMyBP3-C KO cardiac tissue; D. Roiz-Valle and C. López-Otín (IUOPA; Universidad de Oviedo,
Oviedo) for the LmnaG609G/G609G cardiac tissue; and R. J. Davis for the
MKK6 KO mice. We thank G. Giovinazzo and the CNIC Pluripotent
Cell Technology Unit (CNIC, Madrid) for the hiPSCs. We thank
S. Bartlett and F. Chanut (CNIC, Madrid) for English editing, and
R. R. Mondragon (University of Michigan, Ann Arbor) for technical
support. We are grateful to R. J. Davis (University of Massachusetts
Chan Medical School, Worcester), A. Padmanabhan (University
of California, San Francisco) and M. Costa and C. López-Otín
(IUOPA; Universidad de Oviedo, Oviedo) for critical reading of
the manuscript. We thank the staf at the CNIC Genomics and
Bioinformatics Units for technical support and help with data analysis
and A. C. Silva for help with figure editing and design. This work was
funded by a CNIC Intramural Project Severo Ochoa (Expediente 12-
2016 IGP) to G.S. and J.J. G.S. is supported by the following projects:
PMP21/00057 IMPACT-2021, funded by the Instituto de Salud Carlos
III (ISCIII), and PDC2021-121147-I00 and PID2019-104399RB-I00,
funded by MCIN/AEI/10.13039/501100011033—all funded by the
European Union (FEDER/FSE); ‘Una manera de hacer Europa’/‘El
FSE invierte en tu futuro’/Next Generation EU and co-funded by the
European Union/Plan de Recuperación, Transformación y Resiliencia
(PRTR). R.R.B. is a fellow of the FPU Program (FPU17/03847).
B.G.T. was a fellow of the FPI Severo Ochoa CNIC Program
(SVP‐2013‐067639) and an American Heart Association Postdoctoral
Fellow (18POST34080175). The following grants provided
additional funding: Instituto de Salud Carlos III, PDC2021-121147-I00
Convocatoria: Proyectos Prueba de Concepto 2021 Ministerio de
Ciencia e Innovación and PID2022-138525OB-I00 Ministerio de
Ciencia e Innovación; US National Heart, Lung, and Blood Institute
(R01 grant HL122352); Fondos FEDER, Madrid, Spain, and Fundación
Bancaria ‘La Caixa (project HR19/52160013) to J.J.; American
Heart Association Postdoctoral Fellowship 14POST17820005 to
D.P.B.; and MICINN PGC2018-097019-B-I00, ISCIII-SGEFI/ERDF
(PRB3-IPT17/0019, ProteoRed), the Fundació Marató TV3 (grant
122/C/2015) and ‘la Caixa’ Banking Foundation (project code HR17-
00247) to J.V. The CNIC is supported by the Instituto de Salud Carlos
III (ISCIII), the Ministerio de Ciencia e Innovación (MCIN) and the Pro
CNIC Foundation and is a Severo Ochoa Center of Excellence (grant
CEX2020-001041-S, funded by MICIN/AEI/10.13039/501100011033).S
Current Advances Research in Nutraceutical Compounds of Legumes, Pseudocereals and Cereals
The increase of the Western-type diet and life-style, with high content of highly processed fats, salt and sugar, as well as sedentary life, is directly linked to an increasing incidence of chronic diseases such as diabetes and obesity, cancer, cardiovascular diseases or stroke, and inflammatory-related diseases, which are a great challenge in global health and are usually associated with negative effects of globalization: rapid urbanization, diet and increased sedentary life worldwide. This has brought new interest and increased research into plant-based diets. In this context, the implementation in the diet of legumes, cereals and pseudo-cereals, due to their nutraceutical properties, which is interesting as well as advisable. These foods, in addition of having a high nutritional value themselves, have synergistic properties as part of a balanced diet. For example, most legumes are rich in lysine which is scarce in cereals, and these are rich in sulphur amino acids, such as methionine, while these amino acids are scarce in legumes and are of great importance for the central nervous system development. These foods or part of a food, due to their qualities, and that they provide health benefits can be classified as nutraceuticals. In addition, due to their health benefits beyond nutritional properties, can be classified as functional foods, promoting prevention and treatment for the above mentioned diseases, among others. This double function is due mainly to the proteins and the presence of various secondary metabolites and bioactive compounds in these foods of plant (grain and seed) origin. Last discovered knowledge and research features will be described in the present book chapter
Pluripotency factors regulate the onset of Hox cluster activation in the early embryo
Pluripotent cells are a transient population of the mammalian embryo dependent on transcription factors, such as OCT4 and NANOG, which maintain pluripotency while suppressing lineage specification. However, these factors are also expressed during early phases of differentiation, and their role in the transition from pluripotency to lineage specification is largely unknown. We found that pluripotency factors play a dual role in regulating key lineage specifiers, initially repressing their expression and later being required for their proper activation. We show that Oct4 is necessary for activation of HoxB genes during differentiation of embryonic stem cells and in the embryo. In addition, we show that the HoxB cluster is coordinately regulated by OCT4 binding sites located at the 3′ end of the cluster. Our results show that core pluripotency factors are not limited to maintaining the precommitted epiblast but are also necessary for the proper deployment of subsequent developmental programs
p38γ and p38δ regulate postnatal cardiac metabolism through glycogen synthase 1
During the first weeks of postnatal heart development, cardiomyocytes undergo a major adaptive metabolic shift from glycolytic energy production to fatty acid oxidation. This metabolic change is contemporaneous to the up-regulation and activation of the p38γ and p38δ stress-activated protein kinases in the heart. We demonstrate that p38γ/δ contribute to the early postnatal cardiac metabolic switch through inhibitory phosphorylation of glycogen synthase 1 (GYS1) and glycogen metabolism inactivation. Premature induction of p38γ/δ activation in cardiomyocytes of newborn mice results in an early GYS1 phosphorylation and inhibition of cardiac glycogen production, triggering an early metabolic shift that induces a deficit in cardiomyocyte fuel supply, leading to whole-body metabolic deregulation and maladaptive cardiac pathogenesis. Notably, the adverse effects of forced premature cardiac p38γ/δ activation in neonate mice are prevented by maternal diet supplementation of fatty acids during pregnancy and lactation. These results suggest that diet interventions have a potential for treating human cardiac genetic diseases that affect heart metabolism.G.S. is a YIP EMBO member. B.G.T. was a fellow of the FPI Severo Ochoa CNIC program (SVP-2013-067639) and currently is funded by the AHA-CHF (AHA award number: 818798). V.M.R. is a FPI fellow (BES-2014-069332) and A.M.S. is a fellow of the FPI Severo Ochoa CNIC program (BES-2016-077635). This work was funded by the following grants: to G.S.: funding from the EFSD/Lilly European Diabetes Research Programme Dr Sabio, from Spanish Ministry of Science, Innovation and Universities (MINECO-FEDER SAF2016-79126-R and PID2019-104399RB-I00), Comunidad de Madrid (IMMUNOTHERCAN-CM S2010/BMD-2326 and B2017/BMD-3733) and Fundación Jesús Serra; to P.A.: Ayudas para apoyar grupos de investigación del sistema Universitario Vasco (IT971-16 to P.A.), MCIU/AEI/FEDER, funding from Spanish Ministry of Science, Innovation and Universities (RTI2018-095134-B-100); Excellence Network Grant from MICIU/AEI (SAF2016-81975-REDT and 2018-PN188) to PA and GS; to J.V.: funding from Spanish Ministry of Science, Innovation and Universities (PGC2018-097019-B-I00), the Instituto de Salud Carlos III (Fondo de Investigación Sanitaria grant PRB3 (PT17/0019/0003- ISCIII-SGEFI / ERDF, ProteoRed), and “la Caixa” Banking Foundation (project code HR17-00247); to J.P.B.: funding from Spanish Ministry of Science, Innovation and Universities (PID2019-105699RB-I00, RED2018‐102576‐T) and Escalera de Excelencia (CLU-2017-03); to J.A.E.: funding from Spanish Ministry of Science, Innovation and Universities MINECO (RED2018-102576-T, RTI2018-099357-B-I00), CIBERFES (CB16/10/00282), and HFSP (RGP0016/2018). RAP (XPC/BBV1602 and MIN/RYC1102). The CNIC is supported by the Ministry of Science, Innovation and Universities and the Pro CNIC Foundation, and is a Severo Ochoa Center of Excellence (SEV-2015-0505). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript
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