Institution
University of Lleida
Education•Lleida, Spain•
About: University of Lleida is a education organization based out in Lleida, Spain. It is known for research contribution in the topics: Population & Pregnancy. The organization has 2939 authors who have published 5853 publications receiving 148417 citations. The organization is also known as: Escola Superior Politècnica & Universitat de Lleida.
Topics: Population, Pregnancy, Context (language use), Soil water, Sediment
Papers published on a yearly basis
Papers
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Paul Valéry University, Montpellier III1, University of Toulouse2, King Juan Carlos University3, Research Institute of Organic Agriculture4, University of Göttingen5, Université Paris-Saclay6, Agrocampus Ouest7, Centre national de la recherche scientifique8, Lund University9, Institut national de la recherche agronomique10, University of La Rochelle11, University of Paris12, Carleton University13, University of Montpellier14, University of Rennes15, University of Lleida16, University of Alicante17, University of Murcia18, British Trust for Ornithology19, Spanish National Research Council20
TL;DR: This study provides large-scale, multitrophic, cross-regional evidence that increasing crop heterogeneity can be an effective way to increase biodiversity in agricultural landscapes without taking land out of agricultural production.
Abstract: Agricultural landscape homogenization has detrimental effects on biodiversity and key ecosystem services. Increasing agricultural landscape heterogeneity by increasing seminatural cover can help to mitigate biodiversity loss. However, the amount of seminatural cover is generally low and difficult to increase in many intensively managed agricultural landscapes. We hypothesized that increasing the heterogeneity of the crop mosaic itself (hereafter “crop heterogeneity”) can also have positive effects on biodiversity. In 8 contrasting regions of Europe and North America, we selected 435 landscapes along independent gradients of crop diversity and mean field size. Within each landscape, we selected 3 sampling sites in 1, 2, or 3 crop types. We sampled 7 taxa (plants, bees, butterflies, hoverflies, carabids, spiders, and birds) and calculated a synthetic index of multitrophic diversity at the landscape level. Increasing crop heterogeneity was more beneficial for multitrophic diversity than increasing seminatural cover. For instance, the effect of decreasing mean field size from 5 to 2.8 ha was as strong as the effect of increasing seminatural cover from 0.5 to 11%. Decreasing mean field size benefited multitrophic diversity even in the absence of seminatural vegetation between fields. Increasing the number of crop types sampled had a positive effect on landscape-level multitrophic diversity. However, the effect of increasing crop diversity in the landscape surrounding fields sampled depended on the amount of seminatural cover. Our study provides large-scale, multitrophic, cross-regional evidence that increasing crop heterogeneity can be an effective way to increase biodiversity in agricultural landscapes without taking land out of agricultural production.
277 citations
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TL;DR: This technique could improve the efficiency of CEO in food products and a delivery system for novel applications such as active packaging.
276 citations
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TL;DR: Evaluating the overall response, and specific differences, of GN and GW to pre-anthesis temperature in wheat, barley and triticale found the highest effect was found when temperature increased during stem elongation (yield decrease: 46%), lowest when treatments were imposed during heading-antshesis (15%) and intermediate for treatments imposed during booting-antheses (27%).
273 citations
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TL;DR: In this paper, the water-holding capacity of the dietary fiber concentrates and cereals was estimated by centrifugation using an enzymatic-gravimetric method, and it was found that dietary fibre concentrates of fruits and greens had a greater affinity for water than those from cereals.
Abstract: The dietary fibre constituents of apple, pear, orange, peach, artichoke and asparagus dietary fibre concentrates and of wheat and oat bran were measured using an enzymatic-gravimetric method. In addition, the water-holding capacity of the dietary fibre concentrates and cereals was estimated by centrifugation. Dietary fibre concentrates of fruits and greens showed a high content of total dietary fibre (35–59 g/100 g), insoluble dietary fibre (21–44 g/100 g) and soluble dietary fibre (10–14 g/100 g), referred to dry matter. The soluble fraction was found to be greater dietary fibre concentrates of fruits and greens than in wheat and oat bran (3–4 g/100 g). Measurements of water-holding capacity showed that dietary fibre concentrates of fruits and greens had a greater affinity for water than those from cereals.
269 citations
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TL;DR: The physiological meaning of these findings and the effects of experimental manipulations such as dietary stress, caloric restriction, and endocrine control in relation to aging and longevity are discussed.
Abstract: Aging is a progressive and universal process originating endogenously that manifests during postmaturational life. Available comparative evidence supporting the mitochondrial free radical theory of aging consistently indicates that two basic molecular traits are associated with the rate of aging and thus with the maximum life span: the presence of low rates of mitochondrial oxygen radical production and low degrees of fatty acid unsaturation of cellular membranes in postmitotic tissues of long-lived homeothermic vertebrates in relation to those of short-lived ones. Recent research shows that steady-state levels of free radical-derived damage to mitochondrial DNA (mtDNA) and, in some cases, to proteins are lower in long- than in short-lived animals. Thus, nonenzymatic oxidative modification of tissue macromolecules is related to the rate of aging. The low degree of fatty acid unsaturation in biomembranes of long-lived animals may confer advantage by decreasing their sensitivity to lipid peroxidation. Furthermore, this may prevent lipoxidation-derived damage to other macromolecules. Taking into account the fatty acid distribution pattern, the origin of the low degree of membrane unsaturation in long-lived species seems to be the presence of species-specific desaturation pathways that determine membrane composition while an appropriate environment for membrane function is maintained. Mechanisms that prevent or decrease the generation of endogenous damage during the evolution of long-lived animals seem to be more important than trying to intercept those damaging agents or repairing the damage already inflicted. Here, the physiological meaning of these findings and the effects of experimental manipulations such as dietary stress, caloric restriction, and endocrine control in relation to aging and longevity are discussed.
262 citations
Authors
Showing all 3000 results
Name | H-index | Papers | Citations |
---|---|---|---|
Elias Campo | 135 | 761 | 85160 |
Alfonso Valencia | 106 | 542 | 55192 |
Olga Martín-Belloso | 86 | 384 | 23428 |
Paul Christou | 80 | 275 | 23130 |
Luisa F. Cabeza | 76 | 549 | 29134 |
Gustavo A. Slafer | 71 | 245 | 17364 |
Carles Muntaner | 71 | 366 | 18038 |
Reinald Pamplona | 63 | 259 | 12729 |
José Luis Araus | 62 | 226 | 14128 |
Gustavo Barja | 62 | 137 | 12309 |
Xavier Matias-Guiu | 60 | 330 | 11535 |
Mariano Domingo | 59 | 234 | 11293 |
Mariano Rodriguez | 58 | 289 | 12330 |
Sonia Marín | 58 | 239 | 10580 |
Vicente Sanchis | 58 | 269 | 11074 |