Ionómero de vidro vs. resina composta em odontopediatria

Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária

Informe final y cuaderno de diseño. Regional Centro Oriente, municipio de Silvania, departamento de Cundinamarca.

61 hojas : ilustraciones.

Efecto de la concentración de N-NO3- en la solución nutritiva sobre la cantidad y calidad de flores de un cultivo sin suelo de gerbera

En los sistemas de cultivo sin suelo la producción tiene lugar sobre un sustrato compuesto por un material o mezcla de materiales no edáficos, generalmente con baja o casi nula disponibilidad natural de nutrientes minerales, por lo que los mismos son agregados junto con el agua de riego. El manejo nutricional debe asegurar tanto la concentración individual como un balance adecuado entre ellos, en orden de obtener alta productividad y calidad, a la vez que un ajuste fino de la fertilización contribuye a reducir el impacto ambiental. Los objetivos de esta tesis fueron: 1º) evaluar los efectos de diferentes concentraciones de N-NO3- en la solución nutritiva sobre el rendimiento de un cultivo de Gerbera jamesonii Bolus para flor de corte, 2º) analizar si el índice de área foliar (IAF) y el contenido de clorofila están asociados con tales efectos, 3º) determinar si distintas dosis de N afectan la absorción y/o acumulación de otros nutrientes. Para ello se realizaron mediciones de producción (varas florales por unidad de superficie) y calidad de flor (longitud de vara, diámetro de capítulo y vida en florero), área foliar, contenido de clorofila y de nutrientes en hoja. Se determinó consumo de agua y nutrientes a través del seguimiento del agua de riego y de drenaje. Se realizaron mediciones con un radiómetro multiespectral para determinar correlaciones entre las variables ecofisiológicas medidas y el patrón de reflectancia del cultivo. Luego de un año de cultivo, se verificaron variaciones de IAF y clorofila y se encontraron diferencias significativas en cantidad y calidad de flores en momentos puntuales en relación con la dosis de N y con la radiación y temperatura, observándose en general mejores resultados de la dosis más alta en momentos de mayor radiación y temperatura, mientras que en épocas más frías no hubo diferencias o bien estas no fueron cuantitativamente importantes. También se encontró relación entre distintas dosis de N y acumulación de P, K, Ca y Mg en hoja. La construcción de modelos a partir de sensores remotos de reflectancia permitió estimar el contenido de clorofila, de nitrógeno y el IAF. Es necesaria la validación de los mismos para poder utilizarlos como herramienta de manejo. Se concluye que un manejo nutricional óptimo debería modificar la concentración de nutrientes teniendo en cuenta las condiciones ambientales

Ajuste del cálculo de evapotranspiración del cultivo de crisantemo (Dendrathema x grandiflorum Ramat) en invernadero, para diferentes ciclos

p.99-104

Fenología de la floración en lino (Linum ussitatisimum L.)

p.7-12

Rutinas de fertilización de plantas ornamentales anuales en contenedores pequeños

p.89-98

Tizón de las flores de azalea (Rhododendrom sp.) producido por Ovulina azaleae Weiss

p.33-37

Análisis de productividad y calidad comercial en plantas de rosa para corte injertadas sobre dos nuevos patrones

p.141-146

Invernaderos florícolas en Colonia Urquiza (Partido de La Plata, Provincia de Buenos Aires) : I estructuras utilizadas

p.207-214

Pl2 resistance gene differentiates the pathogenicity in four "Plasmopara halstedii" (sunflower downy mildew) races 304, 704, 314 and 714

In order to clarify the role of Pl2 resistance gene in differentiation the pathogenicity in Plasmopara halstedii (sunflower downy mildew), analyses were carried out in four pathotypes: isolates of races 304 and 314 that do not overcome Pl2 gene, and isolates of races 704 and 714 that can overcome Pl2 gene. Based on the reaction for the P. halstedii isolates to sunflower hybrids varying only in Pl resistance genes, isolates of races 704 and 714 were more virulent than isolates of races 304 and 314. Index of aggressiveness was calculated for pathogen isolates and revealed the presence of significant differences between isolates of races 304 and 314 (more aggressive) and isolates of races 704 and 714 (less aggressive). There were morphological and genetic variations for the four P. halstedii isolates without a correlation with pathogenic diversity. The importance of the Pl2 resistance gene to differentiate the pathogenicity in sunflower downy mildew was discussed.

New records of interesting xenophytes in the Iberian Peninsula. V

As a continuation of previous research on the naturalization of non-native vascular plants in the Iberian Peninsula new chorological data are presented for 16 xenophytes recorded between 2010 and 2014, mostly in the provinces of Huelva and Barcelona (Spain) and in the Algarve and Estremadura (Portugal). For each taxon details about distribution, habitats occupied, previous records, degree of naturalization, etc. are provided. Lachenalia bulbifera and Cyperus albostriatus are probably reported for the first time in the wild in Europe, as are Gamochaeta filaginea, and Dysphania anthelmintica and Oenothera lindheimeri for Portugal and Spain respectively. Cosmos bipinnatus is cited as a novelty for the Algarve (Portugal). Newly reported or confirmed for the province of Huelva are: Amaranthus hypochondriacus, Epilobium brachycarpum, Nephrolepis cordifolia, Ficus microcarpa, Tamarix parviflora and Tamarix ramosissima, while Atriplex semibaccata, Chloris truncata, and Elymus elongatus subsp. ponticus are new for Barcelona. Finally, Passiflora caerulea is a novelty for both Barcelona and Huelva provinces.

Validations of high-rank syntaxa in Potamogetonetea and Scheuchzerio-Caricetea fuscae

This paper presents the validation of five syntaxonomic concepts –two orders (Callitricho hamulatae-Ranunculetalia aquatilis, Zannichellietalia pedicellatae) and three alliances (Ranunculion aquatilis, Nelumbion nuciferae and Caricion viridulo-trinervis).

Validations and descriptions of European syntaxa of vegetation dominated by lichens, bryophytes and algae

Fourty-two high-rank syntaxa and seven associations of the thallophyte system of syntaxa are either described as new or validated in this paper. Among those, there are the following nine classes: Aspicilietea candidae, Caulerpetea racemosae, Desmococcetea olivacei, Entophysalidetea deustae, Gloeocapsetea sanguineae, Mesotaenietea berggrenii, Naviculetea gregariae, Porpidietea zeoroidis, Roccelletea phycopsis. Eleven orders and ten alliances as well as three associations are described or validated: the Aspicilietalia verruculosae (incl. Aspicilion mashiginensis and Teloschistion contortuplicati), the Caulerpetalia racemosae (incl. Caulerpion racemosae), the Desmococcetalia olivacei (incl. Desmococcion olivacei), the Dirinetalia massiliensis, the Fucetalia vesiculosi (incl. Ascophyllion nodosi), the Gloeocapsetalia sanguineae, the Lecideetalia confluescentis (incl. Lecideion confluescentis), the Mesotaenietalia berggrenii (incl. Mesotaenion berggrenii, Mesotaenietum berggrenii and Chloromonadetum nivalis), the Naviculetalia gregariae (incl. Oscillatorion limosae and Oscillatorietum limosae), the Porpidietalia zeoroidis (incl. Porpidion zeoroidis), and the Roccelletalia fuciformis (incl. Paralecanographion grumulosae). Further, five orders, seven alliances and four associations, classified in known classes, were described as well. These include: the Bacidinetalia phacodis, the Agonimion octosporae and the Dendrographetalia decolorantis (all in the Arthonio radiatae-Lecidelletea elaeochromae), the Staurothelion solventis (in the Aspicilietea lacustris), the Pediastro duplicis-Scenedesmion quadricaudae and the Pediastro duplicis-Scenedesmetum quadricaudae (both in the Asterionelletea formosae), the Peccanion coralloidis and the Peltuletalia euplocae (both in the Collematetea cristati), the Laminarion hyperboreae, the Saccorhizo polyschidi-Laminarietum and the Alario esculenti-Himanthalietum elongatae (all in the Cystoseiretea crinitae), the Delesserietalia sanguinei, the Delesserion sanguinei and the Delesserietum sanguineae (all in the Lithophylletea soluti), as well as the the Rinodino confragosae-Rusavskietalia elegantis and the Rhizocarpo geographici-Rusavskion elegantis (both in the Rhizocarpetea geographici).

The Afroporteña press and Afro-Argentine’s thought in the late nineteenth century

The journalistic boom that occurred in Argentina from the second half of the nineteenth century saw the emergence of an active afroporteña press that defend the interests of the black community. This paper, in addition to reviewing the history of the Afro-Argentines newspapers, emphasizes the role played by the elite of African descent in the promotion of modernity among his brothers, while exploring the possible bases for an identity in the ideas spread.

Determining factors of the innovative behavior of cooperatives: an analysis of the case of Castilla y León

Cooperatives have a long historical experience in the Spanish economy and have demonstrated their ability to compete against traditional firms in the market. To maintain this capability, while taking advantage of the competitive advantages associated with their idiosyncrasies as social economy enterprises, they should take into consideration that the economy is increasingly globalized and increasingly knowledge-based, especially with regards to technological content. As a consequence, the innovative capacity appears to be a key aspect in order to be able to challenge competitors. This article characterizes the innovative behavior of cooperatives in the region of Castile and Leon and analyses the internal and external factors affecting their innovative performance, based on data from a survey of 581 cooperatives. The results of the empirical analysis, which is performed by multivariate binary logistic regression on various types of innovation, lead us to identify the size of the organizations, the existence of planning, the R & D activities and the human capital as the main determining factors.