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Search Results: 1 - 10 of 783 matches for " Josué;Redaelli "
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Efeito de fatores endógenos na percep??o química de Grapholita molesta(Busck) (Lepidoptera: Tortricidae) ao ferom?nio sexual
Altafini, Deisi L;Sant'Ana, Josué;Redaelli, Luiza R;
Neotropical Entomology , 2010, DOI: 10.1590/S1519-566X2010000300004
Abstract: the oriental fruit moth, grapholita molesta (busck), stands out as one of the most important pest in rosaceae orchards in brazil. during feeding, caterpillars bore into shoots, branches and fruits, impairing the commercial production. this work aimed to study the effect of endogenous factors in the chemical perception and in the species chemotactic behavior, seeking to optimize monitoring and the behavioral control of this pest. we evaluated male electroantennographical (eag) and chemotactical (olfactometry) responses to the synthetic sex pheromone in different ages, virgins or mated and fed or unfed. the eag responses of males did not differ for all evaluated factors. nevertheless, the chemotactical behavior of males seems to decrease with age, not varying as a function of mating or feeding conditions. the knowledge about the interference of these factors in g. molesta may help with the interpretation of field results, allowing the development of suitable and reliable control measures based on infochemicals for behavioral control.
Comparative anatomy of the internal reproductive organs of Grapholita molesta (Busck, 1916) (Lepidoptera: Tortricidae).
Rosana Matos de Morais,Luiza Rodrigues Redaelli,Josué Sant’Ana
Biotemas , 2009,
Abstract: In this study, the internal reproductive organs of Grapholita molesta males and females are described, illustrated and measured, considering virgin individuals of one and eight days of age and mated individuals of eight days. In females, the ovaries, lateral oviducts, common oviduct, bursa copulatrix and seminal receptacle were evaluated. The most evident alterations were observed in the ovaries, which were significantly larger in eight-day-old virgin females, and also in the bursa copulatrix of mated specimens. In males, we observed one pair of fused testes, paired vas deferens, seminal vesicles, duplex ejaculatory ducts and glands, and simplex ejaculatory duct and aedeagus. The testis of eight-day-old specimens, both virgin and mated, were significantly smaller than they were in one-day-old virgin males.
Ocorrência de Cryptoblabes gnidiella (Millière) (Lepidoptera: Pyralidae) relacionada à fenologia da videira em Bento Gon?alves, RS
Bisotto-de-Oliveira, Ricardo;Redaelli, Luiza R.;Sant'Ana, Josué;Cover, Carolina;Botton, Marcos;
Neotropical Entomology , 2007, DOI: 10.1590/S1519-566X2007000400013
Abstract: the aim of this study was to record and compare the occurrence of adults and immature stages of honeydew moth, cryptoblabes gnidiella (millière), related with grape phenology in two pinot noir (vitis vinifera) vineyards in bento gon?alves (29o10's 51o32'o), rs, during 2004-2005. fortnightly, immature stages were monitored in the clusters and grapevine branches, while the adults, in delta traps baited with synthetic sex pheromone. there were significant differences in the number of individuals in different phenologic stages of vineyards. the highest catches of honeydew moth were registered in the period of dry clusters. the permanence of dry cluster after harvest, could serve as refuge for c. gnidiella immatures between seasons.
The influence of prior experience with artificial fruits on the ovipositioning behavior of Anastrepha fraterculus (Diptera, Tephritidae)
Gregório, Patrícia L. F.;Sant'Ana, Josué;Redaelli, Luiza R.;Idalgo, Thiago D. N.;
Iheringia. Série Zoologia , 2012, DOI: 10.1590/S0073-47212012000200004
Abstract: the south american fruit fly, anastrepha fraterculus (wiedemann, 1830) (diptera, tephritidae), is a leading pest of brazilian fruit crops. this study evaluated how prior experience with artificial fruits containing peach and/or guabiroba pulp influenced the ovipositing behavior of a. fraterculus. insects 15-21 days old were exposed to four treatments: 1) experience with guabiroba, campomanesia xanthocarpa o. berg (myrtaceae); 2) experience with peach, prunus persica (l.) batsch (chimarrita cultivar; rosaceae); 3) experience with both fruits; and 4) no experience (naive). naive females and females experienced with guabiroba pulp and with both fruits (peach and guabiroba) oviposited and showed dragging and puncturing behavior on substrates containing guabiroba, but females that were only exposed to peach pulp did not show a preference for any substrate. the study shows that prior experience with substrate influences ovipositing behavior in a. fraterculus.
Percep??o química e visual de Anastrepha fraterculus (Diptera, Tephritidae) em laboratório
Gregorio, Patrícia L. F.;Sant'Ana, Josué;Redaelli, Luiza R.;
Iheringia. Série Zoologia , 2010, DOI: 10.1590/S0073-47212010000200007
Abstract: the south american fruit fly anastrepha fraterculus (wiedemann, 1830) is one of the greatest threats to the fruit growing industry in brazil. during the feeding process, the larvae build galleries within the fruit, altering the flavor and damaging its production and commercialization. the present work had as its objective to study the factors involved in the choice of the host by a. fraterculus. electroantennographic responses of the males and females to the ethanolic extracts of the fruits of the peach tree - prunus persica, cultivar chimarrita (rosaceae), surinam cherry tree - eugenia uniflora (myrtaceae), guabirobeira tree - campomanesia xanthocarpa (myrtaceae) and brazilian guava tree - psidium cattleianum (myrtaceae) were considered. also recorded was the influence of the color (yellow, green and red) and the composition of the substratum of oviposition (pulps of brazilian guava, guabiroba, surinam cherry and peaches) in the fecundity. electroantennographic responses of the females were distinct to the extracts of the unripe and ripe guabiroba, ripe brazilian guava and unripe surinam cherry. in antennae of the males, the greatest depolarization average was registered in the responses to the extracts of ripe and unripe guabiroba, ripe and unripe brazilian guava and unripe surinam cherry. electrophysiologic responses did not differ statistically between the sexes for all the treatments. the colors of the substratum of oviposition did not affect the fecundity. the females ovipositioned more on the substratum containing pulp of peaches and of guabiroba, when compared to the respective controls.
Effects of aging and polygamy on the reproductive performance of Grapholita molesta (Lepidoptera: Tortricidae)
de Morais,Rosana M; Sant? Ana,Josué; R. Redaelli,Luiza; Lorscheiter,Rafael;
Revista Colombiana de Entomología , 2011,
Abstract: males and females of grapholita molesta (lep., tortricidae) are polygamous. in order to evaluate the effects of polyandry and polygyny in the reproductive performance of this species, newly-emerged adults were submitted to either of two treatments: monogamous couples together until death or males and females receiving virgin partners one or three days old every day until death. the fecundity and fertility of all females were evaluated daily. mean fecundity was similar in both monogamic and poliandric females; however, females paired with one day old males presented the lowest mean fertility. similarly, fecundity and fertility means were significantly lower in females paired with polygynic males, in comparison to monogamic females. a negative correlation was found between male age and the number of copulated females. males presented the highest number of copulations between three and eight days of age. oviposition patterns were similar in the polyandric and in the monogamic groups, with the highest number of fertile eggs being observed after day three of initial pairing. females of g. molesta do not need to copulate with additional virgin males to enhance their fertility rates. after their third day of life, males are able to copulate with a high number of females, keeping themselves fertile for a long period.
Responses of Anastrepha fraterculus (Diptera: Tephritidae) to pesticides used in organic fruit production Respuestas de Anastrepha fraterculus (Diptera: Tephritidae) a plaguicidas utilizados en la producción orgánica de frutas
Ricardo Bisotto-de-Oliveira,Luiza Rodrigues Redaelli,Josué Sant’ Ana
Revista Colombiana de Entomología , 2012,
Abstract: The South American fruit fly, Anastrepha fraterculus (Diptera: Tephritidae), is an economically important pest of fruit production in Southern Brazil. In organically managed orchards the species has traditionally been controlled with oils, plant extracts, and solutions such as pyroligneous extract and lime sulfur. The objectives of this study were to examine the possible deterrent effect of pesticides with the highest electroantennographic bioactivity on fruit flies and to assess their effects on the viability of pupae in treated fruits. Antennae were exposed to pyroligneous extract (BioPirol7M , 0.4%), lime sulfur solution (SulFertilizantes, 1%), neem (Organic Neem , 0.5%), and rotenone (Rotenat , 0.6%), taking into account fly sex, age and reproductive status. Pupal viability was assessed for larvae reared in papaya (Carica papaya var. Calyman) and guava (Psidium guajava var. Paluma) fruits treated with the pesticides that generated the strongest electrophysiological responses. The bioactivity of A. fraterculus antennae was highest when stimulated with pyroligneous extract and lime sulfur solution, for young and mated flies. Neither substance inhibited oviposition and larval development in treated fruits, a result that has important implications for A. fraterculus management in organic systems. La mosca sudamericana, Anastrepha fraterculus (Diptera: Tephritidae), es una plaga de importancia económica en la producción de frutas en el sur de Brasil. En huertos bajo manejo orgánico la especie se controla tradicionalmente con aceites, extractos vegetales y soluciones como el extracto pirole oso y sulfuro de cal. Los objetivos de este estudio fueron evaluar el posible efecto disuasivo de los plaguicidas que presentan la más alta bioactividad electroantenográficas en moscas de la fruta y evaluar sus efectos sobre la viabilidad de las pupas en frutas tratadas. Las antenas fueron expuestas al extracto pirole oso (BioPirol 7M , 0,4%), solución de sulfuro de cal (SulFertilizantes, 1%), Nim (Organic Neem ; 0,5%) y rotenona (Rotenat , 0,6%), teniendo en cuenta el sexo de la mosca, la edad y el estado reproductivo. La viabilidad de las pupas fue evaluada en larvas criadas en frutas de papaya (Carica papaya var. Calyman) y guayaba (Psidium guajava var. Paluma) tratadas con los plaguicidas que generaron las respuestas electrofisiológicas más fuertes. La bioactividad de las antenas de A. fraterculus fue mayor cuando fueron estimuladas con extracto pirole oso y la solución de sulfuro de cal, para moscas jóvenes y apareadas. Ninguna de estas sustancias inhibió la ovipo
Effects of aging and polygamy on the reproductive performance of Grapholita molesta (Lepidoptera: Tortricidae) Efectos de la edad y poligamia en el desempe o reproductivo de Grapholita molesta (Lepidoptera: Tortricidae)
Rosana M de Morais,Josué Sant’ Ana,Luiza R. Redaelli,Rafael Lorscheiter
Revista Colombiana de Entomología , 2011,
Abstract: Males and females of Grapholita molesta (Lep., Tortricidae) are polygamous. In order to evaluate the effects of polyandry and polygyny in the reproductive performance of this species, newly-emerged adults were submitted to either of two treatments: monogamous couples together until death or males and females receiving virgin partners one or three days old every day until death. The fecundity and fertility of all females were evaluated daily. Mean fecundity was similar in both monogamic and poliandric females; however, females paired with one day old males presented the lowest mean fertility. Similarly, fecundity and fertility means were significantly lower in females paired with polygynic males, in comparison to monogamic females. A negative correlation was found between male age and the number of copulated females. Males presented the highest number of copulations between three and eight days of age. Oviposition patterns were similar in the polyandric and in the monogamic groups, with the highest number of fertile eggs being observed after day three of initial pairing. Females of G. molesta do not need to copulate with additional virgin males to enhance their fertility rates. After their third day of life, males are able to copulate with a high number of females, keeping themselves fertile for a long period. Machos y hembras de Grapholita molesta (Lep., Tortricidae) son polígamos. Para evaluar los efectos de la poliandria y poliginia en el desempe o reproductivo de esta especie, adultos recién emergidos fueron sometidos a uno de dos tratamientos: parejas monógamas que permanecieron juntas hasta la muerte o machos y hembras que recibieron compa eros vírgenes de uno o tres días de edad, todos los días, hasta la muerte. La fecundidad y fertilidad de todas las hembras fueron evaluadas diariamente. La fecundidad media fue semejante en ambas, en hembras monógamas y poliandras; sin embargo, las hembras apareadas con machos de un día de edad presentaron la menor fertilidad media. Del mismo modo, la fecundidad y fertilidad media fueron significativamente menores en las hembras apareadas con machos poliginicos, en comparación con las hembras monógamas. Se encontró una correlación negativa entre la edad del macho y el número de hembras que copularon. Los machos presentaron el mayor número de cópulas entre tres y ocho días de edad. Los patrones de oviposición fueron similares en los grupos poliandros y monógamos, con el mayor números de huevos fértiles observados en el tercer día después del apareamiento inicial. Las hembras de G. molesta no necesitan copular con
Condizioni materiali ed effetti concreti del pensiero
Enrico Redaelli
Nóema , 2011,
Abstract: L’autore tesse un dialogo tra le svariate istanze emerse dagli altri saggi qui raccolti, rimettendo via via in prospettiva quei problemi all’interno di una originale rilettura della proposta “etica” variamente elaborata dalle voci più avanzate dell’ermeneutica contemporanea: fare filosofia dopo Nietzsche significa esibire il limite e la volontà di verità a partire da cui parla la filosofia stessa; ma esibire quel limite non è più un gesto “veritativo” quanto un atto “politico”: non è un nuovo sapere né un ironico non sapere, ma un fare; non un’esercitazione alla morte ma una messa in opera della vita. L’autore tesse un dialogo tra le svariate istanze emerse dagli altri saggi qui raccolti, rimettendo via via in prospettiva quei problemi all’interno di una originale rilettura della proposta “etica” variamente elaborata dalle voci più avanzate dell’ermeneutica contemporanea: fare filosofia dopo Nietzsche significa esibire il limite e la volontà di verità a partire da cui parla la filosofia stessa; ma esibire quel limite non è più un gesto “veritativo” quanto un atto “politico”: non è un nuovo sapere né un ironico non sapere, ma un fare; non un’esercitazione alla morte ma una messa in opera della vita.
The Need for a Family Policy That Fosters Family as an Institution  [PDF]
Josu Ahedo Ruiz
Sociology Mind (SM) , 2015, DOI: 10.4236/sm.2015.51001
Abstract: The 20th anniversary of the international year of the family has led to the General Assembly of the United Nations to ask for a review of family policies adopted by each country to achieve three objectives: eradication of poverty, full employment and social integration. However, an X-ray of the situation of the family according to the data provided by The Word Family Map (2013) says that it has decreased the rate of birth and marriage, while it has increased the cohabitation and births in other than the traditional family forms such as single-parent families. This article advocates the need to institutionalize family policies focused on promoting a family culture to achieve the replacement birth rate. In addition, the current trends reveal that the future family models require the women integration in the working world and therefore family policies should focus on supporting a model that includes working women, as Sweden has been adopting since 1984. At the same time, family policies should solve the risk of new trends which leads to poverty situations that affects children development. Therefore, it is also necessary to determine measures to improve the understanding of a working family life.
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