1,760 research outputs found
Carmen , a yellow canary melon breeding line resistant to Podosphaera xanthii, Aphis gossypii, and Cucurbit Yellow Stunting Disorder Virus
No full textThis research was supported by the Spanish Ministry of Economy and Competitivity co-funded with FEDER (AGL-2008-05687-C02-1, AGL 2011-29516-C02-02, AGL2014-53398-C02-1-R and AGL2014-53398-C2-2-R) and by Generalitat Valenciana through Prometeo Excellence Program (PROMETEO/2017/078).Palomares-Rius, F.; Garcés-Claver, A.; Picó Sirvent, MB.; Esteras Gómez, C.; Yuste-Lisbona, F.; Gómez-Guillamón, M. (2018). Carmen , a yellow canary melon breeding line resistant to Podosphaera xanthii, Aphis gossypii, and Cucurbit Yellow Stunting Disorder Virus. HortScience. 53(7):1072-1075. https://doi.org/10.21273/HORTSCI13013-18S1072107553
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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Combined effects of herbicides and rust fungi on Rumex obtusifolius
No full textEcologia de les comunitats de quironòmids en rius mediterranis de referència / Ecology of Chironomidae Communities in Mediterranean Reference Streams
No full text[cat] Aquest treball aborda l'ecologia de les comunitats d'un dels grups de macroinvertebrats bentònics més diversos i abundants dels nostres rius, els quironòmids. El principal objectiu d'aquesta tesi ha estat estudiar l'estructura de les comunitats de quironòmids en rius mediterranis en condicions de referència, amb la finalitat d'augmentar el coneixement de la biodiversitat dels ecosistemes aquàtics mediterranis. Estudiar les condicions de referència es un dels prerequisits per avaluar l'estat ecològic dels rius i implementar en un futur els programes de gestió adequats seguint les directrius de la Directiva Marc de l'Aigua. Per realitzar els objectius de la tesi s'ha aplicat un protocol de mostreig estandarditzat derivat del projecte GUADALMED, en el qual juntament amb els mostrejos de les comunitats de macroinvertebrats s'han analitzat variables físiques i químiques juntament amb les característiques del bosc de ribera i de l'hàbitat aquàtic per cada punt de mostreig. Un total de 227 taxons de quironòmids han estat identificats utilitzant exclusivament larves, a diferents escales espacials (regions mediterrànies, rius i macrohàbitats) i escales temporals (primavera i estiu). A escala regional s'ha estudiat l' estructura de les comunitats de quironòmids en tres regions mediterrànies del món: la conca mediterrània, Xile i el sud-oest d'Austràlia. S'han trobat diferències de riquesa i composició taxonòmica a causa de processos històrics i de la heterogeneïtat de factors ambientals locals. A més a més en cadascuna de les regions estudiades s'han estudiat les distribucions d'abundàncies de les espècies de quironòmids presenten diferents patrons. S'han estudiat quins són els principals factors ambientals que determinen els patrons de distribució de les comunitats de quironòmids en rius mediterranis de referència a la conca mediterrània de la Península Ibèrica. La zonació longitudinal (altitud, àrea de conca, temperatura...), juntament amb la heterogeneïtat temporal són els principals gradients que afecten les variacions en l'estructura de les comunitats de quironòmids. A més a més s'ha quantificat la importància de diferents grups de variables ambientals a diferents escales: locals, regionals i geogràfiques, i es conclou que les variables locals son les que contribueixen de manera més important a la proporció de variança explicada. S'han determinat els requeriments ecològics (òptims i toleràncies de les variables ambientals d'estudi) per les espècies de quironòmids presents en aquesta zona. La variabilitat temporal (diferències primavera-estiu) és baixa en les comunitats de quironòmids de les capçaleres silíciques, mentre que en altres grups de rius com els petits rius calcaris, presenten variacions estacionals importants. Finalment, s'ha estudiat la correspondència entre les comunitats biològiques i els ecotipus fluvials establerts a la regió mediterrània ibèrica segons les directrius de la Directiva Marc de l'Aigua. S'han definit un total de cinc ecotipus fluvials utilitzant una combinació de variables hidrològiques, geològiques, morfològiques i climàtiques: (1) rius temporals, (2) trams mitjos evaporítics-calcàris, (3) capçaleres silíciques, (4) capçaleres calcàries i (5) trams mitjos-baixos. La tipologia obtinguda es va validar amb les comunitats de quironòmids (al nivell taxonòmic més baix possible d'espècie o gènere) i també amb les comunitats de macroinvertebrats (al nivell taxonòmic de família). Els nostres resultats mostren que una tipologia de rius basada amb les comunitats de macroinvertebrats i/o de quironòmids identifica diferents tipus de rius que en alguns casos coincideixen amb la tipologia ambiental però en d'altres no. Conseqüentment per establir les comunitats de referència en rius mediterranis la metodologia més correcta seria la utilització directa de les comunitats biològiques.[eng] The main objective of this thesis has been to study the structure of Chironomidae assemblages in Mediterranean reference streams. The study of freshwater biodiversity in reference conditions is a prerequisite for the implementation of effective management programs according to Water Framework Directive. To achieve that, a standardized sampling protocol for macroinvertebrate studies established in GUADALMED project has been followed. A total of 227 chironomid taxa have been identified using exclusively larvae at different spacial (Mediterranean regions, streams and macrohabitats) and temporal scales (spring and summer). At regional scale it has been studied the chironomid community structure in three Mediterranean regions around the world: South-Western Australia, Central Chile and Mediterranean Basin. Differences of taxonomical composition and richness were found among regions, mainly due to historical factors and also to local environmental constraints. Moreover, analysis of species abundances distributions showed distinctive patterns in each region. Main environmental factors that determine distribution patterns of Chironomidae communities from Spanish Mediterranean rivers have been analyzed. Variation in the assemblage structure of chironomids was primarily explained by longitudinal zonation (altitude, catchment area, temperature.) together with temporal heterogeneity (explained mainly by hydrological parameters). Moreover, in order to study ecological requirements of Chironomidae species in the study zone, optimums and tolerances to main environmental variables have been obtained for all species. Seasonal changes in the composition of Chironomidae communities have been analyzed. For instance, different biological communities from siliceous headwaters have not been detected among seasons, whereas small calcareous streams have significantly different biological communities between spring and summer. Finally, concordance among biological communities and fluvial ecotypes, established in Spanish Mediterranean region according to the guidelines of Water Framework Directive, has been analyzed. A total of five ecotypes have been defined. These ecotypes have been validated with Chironomidae assemblages (at the lowest taxonomical level) and also with macroinvertebrate assemblages (at family level). Our results show that correspondence of ecotypes with biological communities (macroinvertebrates and chironomids) mismatches in some cases. For this reason, in order to establish reference communities in Mediterranean streams, a classification based on biological data should be more appropriated than an environmental top-down classification
Roughness Induced Boundary Layer Transition in Incompressible Flow
No full textThe fluid dynamics process leading to laminar-turbulent transition behind an isolated roughness element is investigated in the incompressible regime using particle image velocimetry. The study covers the effect of roughness size and geometry on the promotion of transition. The measurement domain covers a large streamwise range from the near wake to the onset of the turbulent regime. Planar PIV measurements reveal the basic flow pattern and the turbulent structure of the flow characterizing by the velocity fluctuation statistics (RMS of the streamwise and wall-normal velocity component and Reynolds shear stress). The high Reynolds shear stress level reaching the region near the wall in the downstream area indicates the onset of turbulent boundary layer
Keterampilan Hukum, Panduan untuk Mahasiswa, Akademisi dan Praktisi
No full textSkills book for Indonesian students and lawyers in Indonesian, based on the skills method of the Faculty of Law of Maastricht University. Each chapter has been written by a different author, but the overall structure is based on the structure of Vaardigheden voor juristen
Fenton-like degradation enhancement of methylene blue dye with magnetic heating induction
No full textWe studied the adsorption/degradation process of methylene blue in a Fenton like process using iron oxide nanoparticles as a source of Fe2+ ions, where the nanoparticles were prepared via a facile electrochemical synthesis method. The degradation kinetics were studied using 2 g L−1 of catalyst and 100 ppm of pollutant at pH 3.5. The influence of temperature on this process was evaluated using two different setups: conventional heating in a thermostatic bath and selective heating using an alternating magnetic field. The magnetic induction heating process led to a greater degradation of the pollutant compared with the thermostatic bath. In addition, the optimal concentration of Fe2+ in solution was evaluated in a Fenton homogeneous process to achieve the same degradation efficiency when using a nanoparticle-assisted Fenton-like process. A concentration of 0.5 ppm Fe2+ in solution yielded the same degradation achieved by using 2 g L−1 of iron oxide nanoparticles. The kinetic analysis fit the pseudo-first-order kinetics and indicated a linear increase in the apparent rate constant with increasing temperature. The activation energy of the degradation process obtained by fitting the Arrhenius equation was 58 kJ mol−1This research was funded by the Spanish Ministry of Economy and Competitiveness under project PGC2018-095642-B-I00 . E. Mazario acknowledges financial support from Comunidad Autónoma de Madrid for the project SI1/PJI/2019-00366 . F.L Rivera acknowledges financial support for grant n° 709903 from the National Council of Science and Technology of Mexico (CONACYT). F.J Palomares acknowledges financial support from Consejo Superior de Investigaciones Científicas (CSIC) by the grant 2019AEP150 linked to project MAT2016-80394-R financed by the Spanish Research Agency (AEI)
Goda Karte
No full textStamoed certificate which reads; Edmonton Latvian Society Imanta. F.J. Baker1.0 Imanta, 1.1.1 Historyof Imanta in Albert
Agglomeration in suspension: A study of mechanisms and kinetics
No full textMechanical, Maritime and Materials Engineerin
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