Search Results - (Author, Cooperation:M. Villena)
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1Latest Papers from Table of Contents or Articles in PressI. Lazaridis ; N. Patterson ; A. Mittnik ; G. Renaud ; S. Mallick ; K. Kirsanow ; P. H. Sudmant ; J. G. Schraiber ; S. Castellano ; M. Lipson ; B. Berger ; C. Economou ; R. Bollongino ; Q. Fu ; K. I. Bos ; S. Nordenfelt ; H. Li ; C. de Filippo ; K. Prufer ; S. Sawyer ; C. Posth ; W. Haak ; F. Hallgren ; E. Fornander ; N. Rohland ; D. Delsate ; M. Francken ; J. M. Guinet ; J. Wahl ; G. Ayodo ; H. A. Babiker ; G. Bailliet ; E. Balanovska ; O. Balanovsky ; R. Barrantes ; G. Bedoya ; H. Ben-Ami ; J. Bene ; F. Berrada ; C. M. Bravi ; F. Brisighelli ; G. B. Busby ; F. Cali ; M. Churnosov ; D. E. Cole ; D. Corach ; L. Damba ; G. van Driem ; S. Dryomov ; J. M. Dugoujon ; S. A. Fedorova ; I. Gallego Romero ; M. Gubina ; M. Hammer ; B. M. Henn ; T. Hervig ; U. Hodoglugil ; A. R. Jha ; S. Karachanak-Yankova ; R. Khusainova ; E. Khusnutdinova ; R. Kittles ; T. Kivisild ; W. Klitz ; V. Kucinskas ; A. Kushniarevich ; L. Laredj ; S. Litvinov ; T. Loukidis ; R. W. Mahley ; B. Melegh ; E. Metspalu ; J. Molina ; J. Mountain ; K. Nakkalajarvi ; D. Nesheva ; T. Nyambo ; L. Osipova ; J. Parik ; F. Platonov ; O. Posukh ; V. Romano ; F. Rothhammer ; I. Rudan ; R. Ruizbakiev ; H. Sahakyan ; A. Sajantila ; A. Salas ; E. B. Starikovskaya ; A. Tarekegn ; D. Toncheva ; S. Turdikulova ; I. Uktveryte ; O. Utevska ; R. Vasquez ; M. Villena ; M. Voevoda ; C. A. Winkler ; L. Yepiskoposyan ; P. Zalloua ; T. Zemunik ; A. Cooper ; C. Capelli ; M. G. Thomas ; A. Ruiz-Linares ; S. A. Tishkoff ; L. Singh ; K. Thangaraj ; R. Villems ; D. Comas ; R. Sukernik ; M. Metspalu ; M. Meyer ; E. E. Eichler ; J. Burger ; M. Slatkin ; S. Paabo ; J. Kelso ; D. Reich ; J. Krause
Nature Publishing Group (NPG)
Published 2014Staff ViewPublication Date: 2014-09-19Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Agriculture/history/manpower ; Asia/ethnology ; Europe ; European Continental Ancestry Group/*classification/*genetics ; Genome, Human/*genetics ; History, Ancient ; Humans ; Population Dynamics ; Principal Component AnalysisPublished by: -
2Latest Papers from Table of Contents or Articles in PressD. Reich ; N. Patterson ; D. Campbell ; A. Tandon ; S. Mazieres ; N. Ray ; M. V. Parra ; W. Rojas ; C. Duque ; N. Mesa ; L. F. Garcia ; O. Triana ; S. Blair ; A. Maestre ; J. C. Dib ; C. M. Bravi ; G. Bailliet ; D. Corach ; T. Hunemeier ; M. C. Bortolini ; F. M. Salzano ; M. L. Petzl-Erler ; V. Acuna-Alonzo ; C. Aguilar-Salinas ; S. Canizales-Quinteros ; T. Tusie-Luna ; L. Riba ; M. Rodriguez-Cruz ; M. Lopez-Alarcon ; R. Coral-Vazquez ; T. Canto-Cetina ; I. Silva-Zolezzi ; J. C. Fernandez-Lopez ; A. V. Contreras ; G. Jimenez-Sanchez ; M. J. Gomez-Vazquez ; J. Molina ; A. Carracedo ; A. Salas ; C. Gallo ; G. Poletti ; D. B. Witonsky ; G. Alkorta-Aranburu ; R. I. Sukernik ; L. Osipova ; S. A. Fedorova ; R. Vasquez ; M. Villena ; C. Moreau ; R. Barrantes ; D. Pauls ; L. Excoffier ; G. Bedoya ; F. Rothhammer ; J. M. Dugoujon ; G. Larrouy ; W. Klitz ; D. Labuda ; J. Kidd ; K. Kidd ; A. Di Rienzo ; N. B. Freimer ; A. L. Price ; A. Ruiz-Linares
Nature Publishing Group (NPG)
Published 2012Staff ViewPublication Date: 2012-07-18Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Americas ; Asia ; Cluster Analysis ; Emigration and Immigration/*history/statistics & numerical data ; Gene Flow ; Genetics, Population ; History, Ancient ; Humans ; Indians, North American/*genetics/*history ; Models, Genetic ; *Phylogeny ; Polymorphism, Single Nucleotide/genetics ; SiberiaPublished by: -
3Articles: DFG German National LicensesStephen, D. ; Balayla, D. M. ; Bécares, E. ; Collings, S. E. ; Fernández-Aláez, C. ; Fernández-Aláez, M. ; Ferriol, C. ; García, P. ; Gomá, J. ; Gyllström, M. ; Hansson, L.-A. ; Hietala, J. ; Kairesalo, T. ; Miracle, M. R. ; Romo, S. ; Rueda, J. ; Ståhl-Delbanco, A. ; Svensson, M. ; Vakkilainen, K. ; Valentín, M. ; Van de Bund, W. J. ; Van Donk, E. ; Vicente, E. ; Villena, M. J. ; Moss, B.
Oxford, UK : Blackwell Science Ltd
Published 2004Staff ViewISSN: 1365-2427Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: 1. Shallow lake ecosystems are normally dominated by submerged and emergent plants. Biological stabilising mechanisms help preserve this dominance. The systems may switch to dominance by phytoplankton, however, with loss of submerged plants. This process usually takes place against a background of increasing nutrient loadings but also requires additional switch mechanisms, which damage the plants or interfere with their stabilising mechanisms.2. The extent to which the details or even major features of this general model may change with geographical location are not clear. Manipulation of the fish community (biomanipulation) has often been used to clear the water of algae and restore the aquatic plants in northerly locations, but it is again not clear whether this is equally appropriate at lower latitudes.3. Eleven parallel experiments (collectively the International Mesocosm Experiment, IME) were carried out in six lakes in Finland, Sweden, England, the Netherlands and Spain in 1998 and 1999 to investigate the between-year and large-scale spatial variation in relationships between nutrient loading and zooplanktivorous fish on submerged plant and plankton communities in shallow lakes.4. Comparability of experiments in different locations was achieved to a high degree. Cross-laboratory comparisons of chemical analyses revealed some systematic differences between laboratories. These are unlikely to lead to major misinterpretations.5. Nutrient addition, overall, had its greatest effect on water chemistry then substantial effects on phytoplankton and zooplankton. Fish addition had its major effect on zooplankton and did not systematically change the water chemistry. There was no trend in the relative importance of fish effects with latitude, but nutrient addition affected more variables with decreasing latitude.6. The relative importance of top-down and bottom-up influences on the plankton differed in different locations and between years at the same location. The outcome of the experiments in different years was more predictable with decreasing latitude and this was attributed to more variable weather at higher latitudes that created more variable starting conditions for the experiments.Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesVan De Bund, W. J. ; Romo, S. ; Villena, M. J. ; Valentín, M. ; Van Donk, E. ; Vicente, E. ; Vakkilainen, K. ; Svensson, M. ; Stephen, D. ; Ståhl-Delbanco, A. ; Rueda, J. ; Moss, B. ; Miracle, M. R. ; Kairesalo, T. ; Hansson, L.-A. ; Hietala, J. ; Gyllström, M. ; Goma, J. ; García, P. ; Fernández-Aláez, M. ; Fernández-Aláez, C. ; Ferriol, C. ; Collings, S. E. ; Bécares, E. ; Balayla, D. M.
Oxford, UK : Blackwell Publishing
Published 2004Staff ViewISSN: 1365-2427Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: 1. The impacts of nutrients (phosphorus and nitrogen) and planktivorous fish on phytoplankton composition and biomass were studied in six shallow, macrophyte-dominated lakes across Europe using mesocosm experiments.2. Phytoplankton biomass was more influenced by nutrients than by densities of planktivorous fish. Nutrient addition resulted in increased algal biomass at all locations. In some experiments, a decrease was noted at the highest nutrient loadings, corresponding to added concentrations of 1 mg L−1 P and 10 mg L−1 N.3. Chlorophyll a was a more precise parameter to quantify phytoplankton biomass than algal biovolume, with lower within-treatment variability.4. Higher densities of planktivorous fish shifted phytoplankton composition toward smaller algae (GALD 〈 50 μm). High nutrient loadings selected in favour of chlorophytes and cyanobacteria, while biovolumes of diatoms and dinophytes decreased. High temperatures also may increase the contribution of cyanobacteria to total phytoplankton biovolume in shallow lakes.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesCordero Otero, R. R. ; Ubeda Iranzo, J. F. ; Briones-Perez, A. I. ; Potgieter, N. ; Villena, M. A. ; Pretorius, I. S. ; Rensburg, P. van
Oxford, UK : Blackwell Publishing Ltd
Published 2003Staff ViewISSN: 1750-3841Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionProcess Engineering, Biotechnology, Nutrition TechnologyNotes: : The β-glucosidase activities of 20 wine-related non-Saccharomyces yeasts were quantified, characterized, and assessed for their efficiency in releasing aroma-enhancing compounds during the winemaking process. Of these enzymatic activities, the β-glucosidase activity of Debaryomyces pseudopolymorphus revealed the most suitable combination of properties in terms of functionality at wine pH, resistance to wine-associated inhibitory compounds (glucose, ethanol, and sulfur dioxide), high substrate affinity, and large aglycone-substrate recognition. Its potential as a wine aroma-enhancing enzyme was confirmed by the significantly increasing concentrations of free volatiles (citronellol, nerol, and geraniol) during the fermentation of Chardonnay juice inoculated with both D. pseudopolymorphus and a widely used commercial starter culture strain of Saccharomyces cerevisiae, VIN13.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 0362-2525Keywords: Life and Medical Sciences ; Cell & Developmental BiologySource: Wiley InterScience Backfile Collection 1832-2000Topics: BiologyMedicineNotes: The splenic rudiment in sea bass (Dicentrarchus labrax) appears 18 days after hatching in the right side of the body, close to the dorsal wall of the anterior part of the intestine. It acquires its final localization after about 2 months in a middle-ventral position between the cecal part of the stomach and the first intestinal loop. The haemopoietic activity of this spleen during organogenesis varies with age. During the first 40 days only erythropoietic activity is shown, after which thrombopoiesis begins and the first lymphocytes appear. At the time that the amorphous extracellular matrix increases, some reticular, cells of the stroma undergo an active lipid synthesis, which ceases when the larvae are about 2 months old. All the above coincides with a decrease in erythropoiesis and total vascular development, although the ellipsoids and sinusoids do not present their final structure until later stages. These structural variations create microenvironmental conditions which favor modifications in the activity of the spleen. This relation between microenvironment and changes in haematopoietic organ function has also been described in mammals and birds (Metcalf and Moore [1971] Frontiers of Biology. Amsterdam: North Holland; Quesada et al. [1985] J. Submicrosc. Cytol. 17:537-540; Yassine et al. [1989] Cell Diff. Dev. 27:29-45). © 1994 Wiley-Liss, Inc.Additional Material: 26 Ill.Type of Medium: Electronic ResourceURL: