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Organic practices and gender are effective strategies to provide healthy pork loin

Journal of Integrative Agriculture 2016年第3期15卷 608-617页

作者： Javier Alvarez-rodríguez Daniel Villalba Dolors Cubiló Daniel Babot Marc Tor Animal Science Department University of Lleida-Agrotecnio Center Lleida 25198 Spain

This study evaluated the influence of husbandry（organic feed and management but not free-ranging vs. conventional） and sex（barrows vs. gilts） on pork meat quality. A total of 60 Longissimus thoracis pork muscle samples from different 3-way crossbred genotypes were chosen from 3 conventional and 2 organic pig farms. Technological meat quality was measured at 24 h post-mortem and muscle fatty acid content and composition was analysed by gas chromatography. The loin from organic pigs at 24 h of retail display had lower pH, but it had no detrimental effects on drip loss. All the International Commission on Illumination colour attributes except meat lightness differed between husbandry systems. Moisture and crude protein content were lower whereas intramuscular fat content was greater in organic than in conventional pork. Total saturated fatty acid（SFA）, monounsaturated fatty acid（MUFA）, polyunsaturated fatty acid（PUFA） and PUFA n-6 contents did not differ between husbandry systems, but total PUFA n-3（mainly C18：3 n-3） were greater in organic than in conventional pork. Sex did not affect ultimate p H or meat colour attributes but barrows showed lower moisture and greater intramuscular fat than gilts. Total SFA and MUFA content were similar but all the PUFA（both n-6 and n-3） were lower in barrows than in gilts. These results suggest that some bioactive compounds from dietary origin, i.e., linolenic acid（C18：3 n-3） content from dietary vegetable oils（soybean or olive olein）, might be used to highlight the nutritive value of（not free-ranging） organic pork meat. In addition, gilts were leaner than barrows and showed a more favourable PUFA/SFA ratio.

关键词： Longissimus muscle chemical composition intramuscular fat fatty acids pigs

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Boosting hydrogen and chemicals production through ethanol electro-reforming on Pt-transition metal anodes

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Journal of Energy Chemistry 2022年第7期31卷 394-406,I0011页

作者： Alberto rodríguez-Gómez Fernando Dorado Paula Sánchez Ana Raquel de la Osa Chemical Engineering Department Faculty of Chemical Sciences and TechnologyUniversity of Castilla-La Mancha

The aim of this work is to boost the combined hydrogen and added-values compounds generation(acetaldehyde, acetic acid and ethyl acetate) through ethanol electrochemical reforming using bimetallic anodes. In particular, the influence of the secondary metal on the electrochemical performance as well as on the product distribution was studied. For that purpose, Pt X/C electrocatalysts(where X corresponds to Cu, Co, Ni and Ru) were synthesized by the modified polyol method and tested in both half-cell and proton exchange membrane(PEM) cell configurations. Characterization results showed that incorporation of Ni and Co into the Pt matrix enhances the morphological properties of the material, providing smaller crystallite sizes, higher active surface areas and hence, better dispersion when comparing to Ru and Cu-based electrocatalysts. Ethanol oxidation reaction(EOR) was evaluated by cyclic, linear voltammetry and chronopotentiometry assays. Pt Co/C and Pt Ni/C exhibited the highest electrocatalytic activity at high polarization levels, which translate into an improvement of more than 30%(up to 1050 m A cm^(-2)) in the hydrogen production and chemical yields. On the other hand, Pt Ru/C results more advantageous for a lower potential interval(<0.85 V) promoting the acetic acid production despite sacrificing ethanol conversion. Pt Cu/C presented the lowest results in both electrochemical performance and product distribution. Such differences in the electrochemical performance can be rationalized in terms of the synergistic effect between both metals(particle size distribution, grade of dispersion and hydrophilic behavior), which demonstrate that the incorporation of a different secondary metal plays an essential role in the EOR development.

关键词： Ethanol electrochemical reforming Bimetallic anodic electrocatalysts PEM cell High current performance Hydrogen Chemicals production

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The Limit Case of a Domination Property

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Acta Mathematica Sinica,English Series 2012年第3期28卷 463-468页

作者： Magdalena LEMANSKA Juan A. rodríGUEZ-VELZQUEZ Ismael G. YERO Department of Technical Physics and Applied Mathematics Gdańsk University of Technology Departament d’Enginyeria Informàtica i Matemàtiques Universitat Rovira i Virgili Departament d'Enginyeria Informàtica i Matemàtiques Universitat Rovira i Virgili

The domination number γ,（G） of a connected graph G of order n is bounded below by

关键词： Dominating set domination number

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Natural durability of wood of ten native species from northeastern Mexico

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Forestry Studies in China 2013年第2期15卷 160-166页

作者： Artemio CARRILLO Rahim FOROUGHBACHK Verónica BUSTAMANTE Christian WEHENKEL humberto GONZáLEZ Universidad Autónoma de Nuevo León (UANL) Facultad de Ciencias ForestalesCarr. Nal. No. 85 Km 145. 66700 041. Linares Nuevo León México Universidad Autónoma de Nuevo León (UANL) Facultad de Ciencias Biológicas San Nicolás de los GarzaNuevo León 66451 México Instituto de Silvicultura e Industria de la Madera Universidad Juárez del Estado de DurangoKm 5.5 Carretera Mazatlán 34120 Durango México

Thorn scrub vegetation in Mexico is distributed over 50 million ha, where native tree species are the source of forage, timber, firewood and charcoal. Research describing wood durability of species from this vegetation type has not been fully determined, nor classified according to international standards. Thus, the aim of this study was to determine and classify the natural durability of ten woody species. Their natural durability was determined according to the European Pre-Norm 807, the loss of dynamic modulus of elasticity （MOEdyo）（MPa） was determined and wood mass loss （g） after being exposed to Trametes versicolor and Coniophora puteana fungi. Wood durability was classified accord- ing to the European Norm 350-1. Highly significant differences （p 〈 0.001） were found between the durability of woody species. The more durable species with lower MOEdyn lost were Condalia hooked （57.5% ± 0.6%）, Havardia pallens （58.2% ± 0.4%） and Acacia schaffneri （58.9% ±6.3%）. Species with lower mass loss after exposed to Coniophora puteana were Ebenopsis ebano （6.3% ±1.9%）, Condalia hooked （8.6% ±2.3%） and Cordia boissieri （11.8% ±2.3%）. E. ebano （7.1% ±2.4%）, Condalia hooked （8.2% ± 2.5%） and Cordia boissieri （11.5% ± 3.1%） showed the lower mass lost after exposed to T. versicolor. According to European Norm 350-1, three woody species were classified as very durable and durable species.

关键词： native species natural durability dynamic modulus of elasticity mass loss

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Suitability and limitations of mesenchymal stem cells to elucidate human bone illness

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World Journal of Stem Cells 2019年第9期11卷 578-593页

作者： Izaskun Mitxitorena Arantza Infante Blanca Gener Clara I rodríguez Stem Cells and Cell Therapy Laboratory Biocruces Bizkaia Health Research InstituteCruces University HospitalBarakaldo 48903BizkaiaSpain Service of Genetics Biocruces Bizkaia Health Research InstituteCruces University HospitalBarakaldo 48903BizkaiaSpain Centre for Biomedical Network Research on Rare Diseases Instituto de Salud Carlos IIIMadrid 28005Spain

Functional impairment of mesenchymal stem cells(MSCs),osteoblast progenitor cells,has been proposed to be a pathological mechanism contributing to bone disorders,such as osteoporosis(the most common bone disease)and other rare inherited skeletal *** bone loss can be caused not only by an enhanced bone resorption activity but also by hampered osteogenic differentiation of *** majority of the current treatment options counteract bone loss,and therefore bone fragility by blocking bone *** socalled antiresorptive treatments,in spite of being effective at reducing fracture risk,cannot be administered for extended periods due to security ***,there is a real need to develop osteoanabolic therapies to promote bone *** MSCs emerge as a suitable tool to study the etiology of bone disorders at the cellular level as well as to be used for cell therapy purposes for bone *** review will focus on the most relevant findings using human MSCs as an in vitro cell model to unravel pathological bone mechanisms and the application and outcomes of human MSCs in cell therapy clinical trials for bone disease.

关键词： Mesenchymal stem cells Bone illness Osteoporosis Osteogenesis Osteoanabolic therapies In vitro cell models Cell therapy

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Macrofaunal communities of threatened subtidal maёrl seabeds on Tenerife (Canary Islands, north-east Atlantic Ocean) in summer

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Acta Oceanologica Sinica 2012年第1期31卷 98-105页

作者： rodrigo Riera Juan Domingo Delgado Myriam rodríguez Óscar Monterroso Eva Ramos Centro de Investigaciones Medioambientales del Atlántico(CIMA SL) C/Arzobispo Elías Yanes Área de Ecología Departamento de Sistemas FísicosQuímicos y Naturales.Facultad de Ciencias ExperimentalesUniversidad Pablo de Olavide

This study contributes with the first data on physical and taxonomical structure of macrofaunal assemblages of maerl beds from the Canary Islands. Maerl beds and Cymodocea nodosa meadows of the Canary Islands are considered biodiversity hot-spots in terms of taxonomic and functional biodiversity with a broad geographical and depth ranges. The authors have studied the structure of the macrofaunal assemblages on different habitat types （Cymodocea, Caulerpa, sabellid field, garden eel and maerl beds）. Samples were taken at a range of depths between 14 and 46 m. Correlations were performed among abiotic variables （granulometry, organic matter, nitrogen and phosphates） and the most abundant taxa. Similarity analysis was performed to explore the patchiness of seabeds at a local scale. Significant differences were found in macrofaunal assemblages among seabed types, with highest abundances and lowest biodiversity in sabellid fields, where the sabellid Bispira viola dominated. The polychaetes Aponuphis bilineata and Chone filicauda and the mollusc Turritella brochii were the most abundant taxa on maerl beds. The mosaic of granulometric conditions would explain the associated macroinfaunal community structure and contribute to the creation of diversity on these relatively well preserved seabeds at a local scale.

关键词： Macrofauna Polychaetes Amphipods Molluscs soft-bottoms subtidal Tenerife Canary Islands

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Coping with drought? The hidden microhabitat selection and underground movements of amphisbaenians under summer drought conditions

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Current Zoology 2024年第5期70卷 647-658页

作者： JoséMartín Gonzalo rodríguez-Ruiz JoséJavier Cuervo Departamento de Ecología Evolutiva Museo Nacional de Ciencias NaturalesCSICMadridSpain

Habitat selection is a dynamic process that depends on many environmental variables that can vary with weather *** is important because,within a context of global change,extreme weather events,such as severe droughts,are predicted to become more *** examined the patterns of microhabitat selection and underground movements(using PIT-tag telemetry)of a strictly fossorial reptile,the North African checkboard amphisbaenian Trogonophis wiegmanni,during the summer drought *** aimed to test whether changes in strategies of habitat use and movements could allow this amphisbaenian to cope with unfavorable *** found that during the summer drought period,*** did not use the microhabitats in relationship to their availability,but particularly selected sites with high abundance of rocks but also areas under a high cover of bushes,where environmental conditions were more *** also found,using PIT-tag telemetry,that the numbers of *** individuals located under rocks and their activity(number of days with movements)decreased largely in ***,the animals were not entirely inactive,but,especially males were active below the ground under bushes and made some relatively long underground hidden movements between favorable areas.

关键词： arid environments fossoriality habitat selection movement ecology Trogonophis wiegmanni weather conditions

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Comparative efficiency analysis of different nonlinear modelling strategies to simulate the biaxial response of RC columns

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Earthquake Engineering and Engineering Vibration 2012年第4期11卷 553-566页

作者： Hugo rodrigues humberto Varum António Arêde Aníbal Costa University of Aveiro Civil Engineering Department Faculty of Natural Sciences Engineering and Technology-Oporto Lusophone University Civil Engineering Department Faculty of Engineering University of Porto

The performance of different nonlinear modelling strategies to simulate the response of RC columns subjected to axial load combined with cyclic biaxial horizontal loading is compared. The models studied are classified into two categories according to the nonlinearity distribution assumed in the elements： lumped-plasticity and distributed inelasticity. For this study, results of tests on 24 columns subjected to cyclic uniaxial and biaxial lateral displacements were numerically reproduced. The analyses show that the global envelope response is satisfactorily represented with the three modelling strategies, but significant differences were found in the strength degradation for higher drift demands and energy dissipation.

关键词： RC columns non-linear behaviour biaxial bending fibre modelling

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Generating oligodendroglia from adult mesenchymal cells for transplantation:cell reprogramming or direct lineage conversion?

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Neural Regeneration Research 2023年第7期18卷 1493-1494页

作者： Jorge Pascual-Guerra JoséA.rodríguez-Navarro Carlos L.Paíno Service of Neurobiology-Research Ramón y Cajal University Hospital-IRYCISMadridSpain Department of Cellular Biology Complutense UniversityMadridSpain

Cell replacement therapy has long been proposed as a treatment for the damaged nervous *** of the most challenging aspects of such a strategy,however,is finding sources of donor cells for *** neural cells are rarely an option as every cell in the nervous system has a defined function that would be lost if that cell was to be *** possibility would be sourcing precursor or differentiated cells from fetal tissues;however,aside from ethical issues,heterologous cells are at risk of immunological rejection in the long *** improvements over the past 15 years have led to the possibility that autologous non-neural cells could be used for cell transplantation through their conversion into neural derivatives.

关键词： neural programming removed

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Basic and clinical aspects of osteoporosis in inflammatory bowel disease

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World Journal of Gastroenterology 2007年第46期13卷 6156-6165页

作者： Lorena rodríguez-Bores JosuéBarahona-Garrido Jesús K Yamamoto-Furusho IBD Clinic Department of GastroenterologyInstituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán.Vasco de Quiroga 15 colonia Sección ⅩⅥTlalpanCP 14000México

Low bone mineral density and the increased risk of fracture in gastrointestinal diseases have a multifactorial pathogenesis. Inflammatory bowel disease （IBD） has been associated with an increased risk of osteoporosis and osteopenia and epidemiologic studies have reported an increased prevalence of low bone mass in patients with IBD. Certainly, genetics play an important role, along with other factors such as systemic inflammation, malnutrition, hypogonadism, glucocorticoid therapy in IBD and other lifestyle factors. At a molecular level the proinflammatory cytokines that contribute to the intestinal immune response in IBD are known to enhance bone resorption. There are genes influencing osteoblast function and it is likely that LRP5 may be involved in the skeletal development. Also the identification of vitamin D receptors （VDRs） and some of its polymorphisms have led to consider the possible relationships between them and some autoimmune diseases and may be involved in the pathogenesis through the exertion of its immunomodulatory effects during inflammation. Trying to explain the physiopathology we have found that there is increasing evidence for the integration between systemic inflammation and bone loss likely mediated via receptor for activated nuclear factor kappa-B （RANK）, RANK-ligand, and osteoprotegerin, proteins that can affect both osteoclastogenesis and T-cell activation. Although glucocorticoids can reduce mucosal and systemic inflammation, they have intrinsic qualities that negatively impact on bone mass. It is still controversial if all IBD patients should be screened, especially in patients with preexisting risk factors for bone disease. Available methods to measure BMD include single energy x-ray absorptiometry, DXA, quantitative computed tomography （QCT）, radiographic absorptiometry, and *** is the establish method to determine BMD, and routinely is measured in the hip and the lumbar spine. There are several treatments options that have

关键词： Inflammatory bowel disease Osteoporosis

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