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Search Results: 1 - 10 of 114616 matches for " Olaf Hermann; Serr?o "
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Biological aspects of Dirphia moderata (Lepidoptera: Saturniidae) on Eucalyptus cloeziana and Psidium guajava
Pereira, Fabricio Fagundes;Felipe, Jo?o Paulo de Mello;Canevari, Glauco da Cruz;Mielke, Olaf Hermann Hendrik;Zanuncio, José Cola;Serro, José Eduardo;
Brazilian Archives of Biology and Technology , 2008, DOI: 10.1590/S1516-89132008000200017
Abstract: an egg mass of dirphia moderata bouvier was collected around a branch of eucalyptus cloeziana to register the occurrence and to study the biological aspects of this species fed with leaves of e. cloeziana or p. guajava at 25 ± 2o c, relative humidity of 60 ± 10% and photo phase of 12 h. the duration and viability of the larva stage of d. moderata was 56.01 days and 80.00% and 55.79 days and 72.5% for its caterpillars fed with the first and second host plants, respectively. the duration (days) and viability (%) of the pupae stage of this insect were 37.64 and 87.00 fed with e. cloeziana and 49.93 and 87.75 with p. guajava, respectively. the average longevity (days) was 6.79 and 8.85 for males and 10.48 and 10.09 for females with e. cloeziana and p. guajava, respectively. each female of d. moderata laid 121.71 and 112.00 eggs with an incubation period (days) of 18.14 and 17.79 and viability (%) of 75.0 and 70.0 with the first and the second hosts, respectively.
Biological and morphological characteristics of hylesia paulex (lepidoptera: saturniidae) fed with eucalyptus urophylla (myrtaceae)
Pereira,Alexandre Igor Azevedo; Zanuncio,Virginia Vinha; Lorenzon,Alexandre Sim?es; Bolognani,Hélder; Fernandes,Bianca Vique; Hendrik Mielke,Olaf Hermann; Serro,José Eduardo; Zanuncio,José Cola;
Interciencia , 2009,
Abstract: hylesia spp. (saturniidae), important moths for public health due to urticating bristles of their larvae and/or adults, are collected in different habitats with potential to defoliate plants in agriculture and forest systems. biological and morphological characteristics of hylesia paulex (dognin, 1922) (lepidoptera: saturniidae) fed with eucalyptus urophylla (myrtaceae) were studied in the laboratory. recently-emerged caterpillars of this species were separated in 10 plastic pots (500ml) with 30 of them per pot, and fed daily with fresh leaves of e. urophylla until they reached adult stage. the egg incubation period of h. paulex was 32.00 ±1.19 days with 65.32 ±14.52% viability, and the duration of the larval stage reached 67.83 ±0.84 days, with seven instars. the gregarious behavior is important to maintain a high survival rate during this stage for h. paulex. the pre-pupa and pupa stages of this insect lasted 3.87 ±0.16 and 21.67 ±0.79 days, respectively. the longevity of females of this species was longer (4.50 ±0.54 days) than that of males (2.80 ±0.44 days). the mean number of eggs per egg mass was 132.3. moths of h. paulex completed its life cycle, satisfactorily, with leaves of e. urophylla in the laboratory.
(Re)pensar o climatério feminino
Serro,Carla;
Análise Psicológica , 2008,
Abstract: this article focuses the theories about climateric. we intend to explain some concepts related to this process. we will present some explicative models, showing how this life span phase has been scientific and socially constructed. finally, some suggestions will be given to develop further research in this area.
Ultrastructure of the silk glands in three adult females of sphecid wasps of the genus Microstigmus (Hymenoptera: Pemphredoninae)
SERRO,JOSé EDUARDO;
Revista chilena de historia natural , 2005, DOI: 10.4067/S0716-078X2005000100002
Abstract: the ultrastructure of silk glands in adult females of sphecid wasps is described. individual glands are scattered in the more posterior portion of the metasoma being each gland formed by an enlarged secretory unity with one conducting canal. each secretory unit is a gland cell containing a large lumen and numerous secretory granules, which are delimited by membrane and filled with middle electron dense content of homogeneous aspect, which are exocytosed into the extra cellular lumen. cell cytoplasm is filled with rough endoplasmic reticulum, polyribosomes and golgi apparatuses profiles. the basal plasma membrane has many short infoldings and is lined by a thin basement membrane. the apical membrane is invaginated to form the boundary of the lumen, containing scattered short microvilli. the cells are mononucleated and the nucleus is pleomorphic containing disperse chromatin. the extracellular lumen is separated of the receiving canal by a convoluted sponge-like wall forming many villi, which in their tip are lined by a thin single layered cuticle. in the basal region of the villi a cuticular covering is lacking. in the conducting canal secretion acquire two different electron densities. a thin cuticle lines the lumen of conducting canal and the cell cytoplasm is scarce and the organelles are represented for few rough endoplasmic reticulum and polyribosomes. these results are discussed in relation to function and origin of silk gland in adult sphecidae
Ultrastructure of the silk glands in three adult females of sphecid wasps of the genus Microstigmus (Hymenoptera: Pemphredoninae) Ultraestructura de las glándulas de seda en hembras adultas de tres especies de avispas del género Microstigmus (Hymenoptera: Sphecidae: Pemphredoninae)
JOSé EDUARDO SERRO
Revista chilena de historia natural , 2005,
Abstract: The ultrastructure of silk glands in adult females of sphecid wasps is described. Individual glands are scattered in the more posterior portion of the metasoma being each gland formed by an enlarged secretory unity with one conducting canal. Each secretory unit is a gland cell containing a large lumen and numerous secretory granules, which are delimited by membrane and filled with middle electron dense content of homogeneous aspect, which are exocytosed into the extra cellular lumen. Cell cytoplasm is filled with rough endoplasmic reticulum, polyribosomes and Golgi apparatuses profiles. The basal plasma membrane has many short infoldings and is lined by a thin basement membrane. The apical membrane is invaginated to form the boundary of the lumen, containing scattered short microvilli. The cells are mononucleated and the nucleus is pleomorphic containing disperse chromatin. The extracellular lumen is separated of the receiving canal by a convoluted sponge-like wall forming many villi, which in their tip are lined by a thin single layered cuticle. In the basal region of the villi a cuticular covering is lacking. In the conducting canal secretion acquire two different electron densities. A thin cuticle lines the lumen of conducting canal and the cell cytoplasm is scarce and the organelles are represented for few rough endoplasmic reticulum and polyribosomes. These results are discussed in relation to function and origin of silk gland in adult Sphecidae Se describe la ultraestructura de las glándulas de la seda en tres hembras adultas de avispas Sphecidae del género Microstigmus. Las glándulas individualmente se dispersan en la porción más posterior del metasoma, y cada una de ellas está formada por una unidad secretora grande y un canal que conduce la secreción. Cada célula de la unidad secretora contiene un gran lumen y numerosos gránulos secretores, los que están delimitados por una membrana y repletos de un contenido denso a los electrones de aspecto homogéneo, el que es eliminado hacia el lumen. El citoplasma de la célula está repleto de perfiles del retículo endoplasmático granular, de polirribosomas y de aparatos de Golgi. La membrana plasmática basal presenta muchos repliegues cortos hacia el interior y está revestida por una membrana basal fina. La membrana plasmática apical está invaginada para formar el límite del lumen extracelular, lleva microvellosidades cortas y dispersas. Las células son mononucleadas y el núcleo es de forma variada y contiene cromatina dispersa. El lumen está separado del canal de recepción por una pared replegada semejant
Entrevista a Miriam Halpern Pereira: por José Vicente Serr o
José Vicente Serro
Análise Social , 2011,
Abstract:
El naturalismo sevillano en las Azores: una pintura de Vasco Pereira Lusitano
Serro, Vitor
Archivo Espa?ol de Arte , 2010,
Abstract: This is the study of an important panel painted in Seville in 1604 by Vasco Pereira Lusitano for the Jesuit College of Ponta Delgada (Azores). The style of this work falls within early Sevillian Naturalism, and the author considers its possible influence on local azorean artists. Estudio de un importante panel ejecutado en Sevilla, en 1604, por Vasco Pereira Lusitano, con destino al Colegio de los jesuitas de Ponta Delgada (Azores) y caracterización estilística de la obra en el contexto del naturalismo naciente, con consideraciones sobre la posible influencia ejercida por la llegada del retablo en los medios artísticos locales.
Análise sensorial sob o enfoque da decis?o fuzzy
Lanzillotti, Regina Serro;Lanzillotti, Haydée Serro;
Revista de Nutri??o , 1999, DOI: 10.1590/S1415-52731999000200004
Abstract: this study is an attempt to apply "fuzzy logic" in the decision-making process in sensorial analysis as a way to validate a faster method to evaluate foods and food preparations, specially in collective food. fuzzy logic permits to work with ambiguity, opening a perspective of quantity alternative structure that replaces the aristotle's law of excluding enviromment by the bertrand russel's logic, where an ambiguous affirmative can have values between 0 and 1.this subjective logic, based on a natural language, is mapped by "fuzzy sets". it started by four hypotheses in verify the applicability of fuzzy logic to making decision to accept products in hedonistic tests. this study used data file from an application of sensorial tests with consumers, men and women, with ages varying from 18 to 55 years old; 48 tested banana skin jam and 50, watermelon inner skin candy. fuzzy logic was applied to test four hypotheses. findings have permitted to use fuzzy logic rather than alternative classic analyses. while anova and manova are used in statistical tests for interaction among attributes, fuzzy logic maps the sensation of "pleasure/displeasure" making decision by the convergence of pertinence functions by holistic means.
Bibliotheca Alexandrina
Eliane Serro Alves Mey
Revista Digital de Biblioteconomia e Ciência da Informa??o , 2004,
Abstract: A Biblioteca de Alexandria, durante seis séculos, foi o centro cultural do mundo. Reuniu sábios, das mais diferentes procedências, que nela desenvolveram trabalhos e pesquisas de importancia fundamental para o conhecimento. Bibliotecários eruditos tornaram acessível ao mundo ocidental obras de toda origem. Calímaco criou uma forma de organiza o do conhecimento registrado, cuja influência perpassou outras bibliotecas antigas e bibliotecas medievais, chegando até nossos dias. A etimologia de palavras utilizadas na Antigüidade explica seu uso contemporaneo na representa o bibliográfica. A destrui o da antiga Biblioteca se reveste de lendas, de origens diversas, inclusive aquelas historicamente preconceituosas. Conclui-se com um relato sumário sobre a revivescência e as principais características da nova Bibliotheca Alexandrina, estabelecendo um paralelo entre a antiga Biblioteca e a nova, como símbolos de conhecimento e coexistência entre diferentes seres humanos e suas perspectivas.
Modeling the Calvin-Benson cycle
Jiri Jablonsky, Hermann Bauwe, Olaf Wolkenhauer
BMC Systems Biology , 2011, DOI: 10.1186/1752-0509-5-185
Abstract: Our analysis reveals serious problems with a range of models that are publicly available and widely used. The problems include the irreproducibility of the published results or significant differences between the equations in the published description of the model and model itself in the supplementary material. In addition to and based on the discussion of existing models, we furthermore analyzed approaches in PGA sink implementation and confirmed a weak relationship between the level of its regulation and efficiency of PGA export, in contrast to significant changes in the content of metabolic pool within the Calvin-Benson cycle.In our study we show that the existing models that have been investigated are not suitable for reuse without substantial modifications. We furthermore show that the minor adjacent pathways of the carbon metabolism, neglected in all kinetic models of Calvin-Benson cycle, cannot be substituted without consequences in the mass production dynamics. We further show that photorespiration or at least its first step (O2 fixation) has to be implemented in the model if this model is aimed for analyses out of the steady state.The Calvin-Benson cycle is a central part of the carbon metabolism in oxygenic photosynthesis, involving 11 different enzymes that catalyze 13 reactions [1]. The cycle is an open system, connected to light photosynthetic reactions, CO2 fixation and other parts of carbon metabolism (Figure 1), e.g., starch and sucrose synthesis. It is this complexity that motivates the use of mathematical modeling to unravel the dynamic regulation that underlies experimental observations of the Calvin-Benson cycle.There are two common approaches used in modeling the Calvin-Benson cycle: kinetic modeling, e.g., [2,3] and stoichiometric modeling, e.g., [4-6]. Kinetic modeling requires to obtain/have available kinetic properties of the enzymes involved. These are mostly known if one assumes conservative kinetic parameters among the species with severa
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