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Institution

University of Córdoba (Spain)

EducationCordova, Spain
About: University of Córdoba (Spain) is a education organization based out in Cordova, Spain. It is known for research contribution in the topics: Population & Catalysis. The organization has 12006 authors who have published 22998 publications receiving 537842 citations. The organization is also known as: University of Córdoba (Spain) & Universidad de Córdoba.


Papers
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Journal ArticleDOI
TL;DR: A review of the studies with the highest impact on the field, pointing out what is already broadly recognized and raising concern about issues which still need more attention and showing that most of the highly cited papers come from Northern Europe and Northern America.

138 citations

Journal ArticleDOI
TL;DR: In this paper, the influence of mineralogy and soil management on the maximum P adsorption capacity (P max ), remaining P (P rem ), and maximum desorbable P ( β ) in a Rhodic Paleudult, the Rhodic Hapludox and a Humic Haus, all from southern Brazil, was assessed.
Abstract: Phosphorus added to soil is only partly available to crops because it is sorbed to some extent by various soil components. The aim of this study was to assess the influence of mineralogy and soil management (either conventional tillage, CT, or no-tillage, NT) on the maximum P adsorption capacity (P max ), remaining P (P rem ), and maximum desorbable P ( β ) in a Rhodic Paleudult, a Rhodic Hapludox and a Humic Hapludox, all from southern Brazil. P max was estimated from the Langmuir equation describing the sorption curve for soil samples and β from a first-order kinetic equation describing successive P extraction with an anion-exchange resin following incubation of the soils with an amount of P equivalent to 30% of P max (P added ). P max and P rem were significantly correlated with the content of iron oxides (mainly in goethite, Gt). P max was lower under NT than under CT in the Rhodic Paleudult and Rhodic Hapludox. On the other hand, P rem was lower under CT than under NT, and exhibited significant differences between the 0–5 and 5–10 cm layers under NT. Parameter β peaked in the soil with the highest P max but the β /P added ratio was highest in the Rhodic Paleudult, which was the soil with the lowest content in iron oxides. These results suggest that the soil with the highest P max and Gt content (viz., the Humic Hapludox) supplies plants with P at a lower rate than the other two despite its high P desorption potential.

138 citations

Journal ArticleDOI
26 Oct 2015-Nature
TL;DR: It is shown that directed growth of the soil-inhabiting plant pathogen Fusarium oxysporum towards the roots of the host tomato (Solanum lycopersicum) is triggered by the catalytic activity of secreted class III peroxidases, a family of haem-containing enzymes present in all land plants.
Abstract: For more than a century, fungal pathogens and symbionts have been known to orient hyphal growth towards chemical stimuli from the host plant. However, the nature of the plant signals as well as the mechanisms underlying the chemotropic response have remained elusive. Here we show that directed growth of the soil-inhabiting plant pathogen Fusarium oxysporum towards the roots of the host tomato (Solanum lycopersicum) is triggered by the catalytic activity of secreted class III peroxidases, a family of haem-containing enzymes present in all land plants. The chemotropic response requires conserved elements of the fungal cell integrity mitogen-activated protein kinase (MAPK) cascade and the seven-pass transmembrane protein Ste2, a functional homologue of the Saccharomyces cerevisiae sex pheromone α receptor. We further show that directed hyphal growth of F. oxysporum towards nutrient sources such as sugars and amino acids is governed by a functionally distinct MAPK cascade. These results reveal a potentially conserved chemotropic mechanism in root-colonizing fungi, and suggest a new function for the fungal pheromone-sensing machinery in locating plant hosts in a complex environment such as the soil.

138 citations

Journal ArticleDOI
TL;DR: In this paper, the authors argue that the political values of the general public form a coherent system and that the source of coherence in political values can be found in the basic personal values (e.g., security, achievement, benevolence, hedonism).
Abstract: Do the political values of the general public form a coherent system? What might be the source of coherence? We view political values as expressions, in the political domain, of more basic personal values. Basic personal values (e.g., security, achievement, benevolence, hedonism) are organized on a circular continuum that reflects their conflicting and compatible motivations. We theorize that this circular motivational structure also gives coherence to political values. We assess this theorizing with data from 15 countries, using eight core political values (e.g., free enterprise, law and order) and ten basic personal values. We specify the underlying basic values expected to promote or oppose each political value. We offer different hypotheses for the 12 non-communist and three post-communist countries studied, where the political context suggests different meanings of a basic or political value. Correlation and regression analyses support almost all hypotheses. Moreover, basic values account for substantially more variance in political values than age, gender, education, and income. Multidimensional scaling analyses demonstrate graphically how the circular motivational continuum of basic personal values structures relations among core political values. This study strengthens the assumption that individual differences in basic personal values play a critical role in political thought.

138 citations

Journal ArticleDOI
TL;DR: The impact of diabetes on the reproductive axis of female T1D patients treated with modern insulin therapy is reviewed, with special attention to the mechanisms by which diabetes disrupts hypothalamic-pituitary-ovarian function.
Abstract: Background The functional reproductive alterations seen in women with type 1 diabetes (T1D) have changed as therapy has improved. Historically, patients with T1D and insufficient metabolic control exhibited a high prevalence of amenorrhea, hypogonadism and infertility. This paper reviews the impact of diabetes on the reproductive axis of female T1D patients treated with modern insulin therapy, with special attention to the mechanisms by which diabetes disrupts hypothalamic-pituitary-ovarian function, as documented mainly by animal model studies. Methods A comprehensive MEDLINE search of articles published from 1966 to 2012 was performed. Animal model studies on experimental diabetes and human studies on T1D were examined and cross-referenced with terms that referred to different aspects of the gonadotropic axis, gonadotrophins and gonadal steroids. Results Recent studies have shown that women with T1D still display delayed puberty and menarche, menstrual irregularities (especially oligomenorrhoea), mild hyperandrogenism, polycystic ovarian syndrome, fewer live born children and possibly earlier menopause. Animal models have helped us to decipher the underlying basis of these conditions and have highlighted the variable contributions of defective leptin, insulin and kisspeptin signalling to the mechanisms of perturbed reproduction in T1D. Conclusions Despite improvements in insulin therapy, T1D patients still suffer many reproductive problems that warrant specific diagnoses and therapeutic management. Similar to other states of metabolic stress, T1D represents a challenge to the correct functioning of the reproductive axis.

138 citations


Authors

Showing all 12089 results

NameH-indexPapersCitations
Jose M. Ordovas123102470978
Liang Cheng116177965520
Pedro W. Crous11580951925
Munther A. Khamashta10962350205
Luis Serrano10545242515
Raymond Vanholder10384140861
Carlos Dieguez10154536404
David G. Bostwick9940331638
Leon V. Kochian9526631301
Abhay Ashtekar9436637508
Néstor Armesto9336926848
Manuel Hidalgo9253841330
Rafael de Cabo9131735020
Harald Mischak9044527472
Manuel Tena-Sempere8735123100
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202333
2022133
20211,640
20201,619
20191,517
20181,348