oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 187 )

2018 ( 296 )

2017 ( 257 )

2016 ( 345 )

Custom range...

Search Results: 1 - 10 of 133177 matches for " Paulo Henrique Arag?o Catunda "
All listed articles are free for downloading (OA Articles)
Page 1 /133177
Display every page Item
Influência do teor de água, da embalagem e das condi??es de armazenamento na qualidade de sementes de maracujá amarelo
Catunda, Paulo Henrique Arago;Vieira, Henrique Duarte;Silva, Roberto Ferreira da;Posse, Sheila Cristina Prucolli;
Revista Brasileira de Sementes , 2003, DOI: 10.1590/S0101-31222003000100011
Abstract: this experiment was designed to verify the influence on yellow passion fruit seed quality of 8 and 10% moisture content (wet basis), package type ( flexible aluminum pouch and paper bag) and the storage environment: laboratory room, temperature varying between 21-29oc and relative humidity between 50-80%, and two controlled conditions, 18oc/24%rh and 4oc/60%rh. the seeds placed in the different packaging were stored in the three different environments for bimonthly evaluation. the following determinations were carried out: seed moisture content, germination and the vigor determined by the accelerated aging test. the tests indicated that seeds conditioned with 10% moisture content presented a drastic reduction in germination, when placed in impermeable packaging in laboratory room conditions, while the treatment with temperature of 4oc and 60% rh showed the best results to preserve the seed viability, regardless of the type of packaging.
Brassinosteróide e substratos na aclimatiza o do abacaxizeiro ‘Imperial’ = Brassinosteroid and substrates in acclimatization of ‘Imperial’ pineapple
Paulo Henrique Arago Catunda,Claudia Sales Marinho,Mara Menezes de Assis Gomes,Almy Junior Cordeiro de Carvalho
Acta Scientiarum : Agronomy , 2008,
Abstract: O objetivo deste trabalho foi avaliar o efeito da aplica o de diferentes concentra es de um análogo de brassinosteróide (BIOBRAS – 16) e de dois substratos sobre o crescimento de mudas micropropagadas do abacaxizeiro ‘Imperial’. O experimento foi conduzido em DBC, em esquema fatorial 2 x 5 x 4, no qual foram avaliadas cincoconcentra es do BIOBRAS - 16 (0; 0,1; 0,3; 0,5 e 1 mg L-1), dois tipos de substratos e quatro épocas de amostragem (60, 90, 120 e 150 dias após transplantio). Os substratos utilizados foram o Plantmax e outro substrato obtido pela compostagem de uma mistura entre o baga o-de-cana e torta de filtro (BT). As plantulas foram transplantadas para tubetes c nicos em casa-de-vegeta o equipada com nebulizadores intermitentes. As plantas cultivadas no substrato BT e pulverizadas com 0,1 mg L-1 do BIOBRAS - 16 apresentaram maior crescimento da parte aérea, com maior número de folhas, diametro de roseta, largurade folha, massa fresca e massa seca, aos 150 dias após transplantio. Nas plantas cultivadas no substrato BT as pulveriza es com o BIOBRAS-16 a 0,1 mg L-1 proporcionaram acúmulo de matéria seca 2,8 vezes superior ao valor da testemunha cultivada no substrato Plantmax . A massa fresca e seca de raízes foram superiores no substrato Plantmax em rela o ao BT, nas últimas épocas de amostragem. This work aimed to evaluate the effects of different concentrations of a brassinoesteroid analogue (BIOBRAS-16) and two substrates on the growth of micropropagated seedlings of ‘Imperial’ pineapple. A randomized block design was used in a 2 x 5 x 4 factorial scheme, evaluating five concentrations of BIOBRAS-16 (0; 0.1; 0.3; 0.5and 1 mg L-1), two types of substrates and four sampling periods (60, 90, 120 and 150 day safter planting). The substrates used were Plantmax and another obtained from a mix of composting sugar-cane bagasse and filter cake (CC). The seedlings were transplanted tosmall conic tubes and allocated in a greenhouse equipped with an intermittent mist. The plants cultivated in CC substrate and sprayed with 0.1 mg L-1 of BIOBRAS-16 showed higher growth of shoots with greater numbers of leaves, rosette diameter, leaf width, freshand dry matter production at 150 days after planting. The plants that were cultivated on CC substrate and sprayed with BIOBRAS-16 at a 0.1 mg L-1 produced 2.8 times more dry matter than the control cultivated in Plantmax substrate. The fresh and dry matter of roots were superior in Plantmax when compared to CC at late sampling periods.
Atividade antioxidante de óleos essenciais de espécies de Croton do nordeste do Brasil
Morais, Selene Maia de;Catunda Júnior, Francisco Eduardo Arago;Silva, Ana Raquel Araújo da;Martins Neto, Jason Stone;Rondina, Davide;Cardoso, José Henrique Leal;
Química Nova , 2006, DOI: 10.1590/S0100-40422006000500004
Abstract: three croton species, c. zenhtneri, c. nepetaefolius and c. argyrophylloides, were collected at two different times, 6:00 and 13:00 h, their essential oils were extracted by steam distillation and analyzed by gas chromatography / mass spectrometry. the percentage yield of oil constituents changes along the day. the oils were submitted to the antioxidant test thiobarbituric acid reactive species, using bht and a-tocoferol as the reference compounds. all oils exhibited good antioxidant activities. in general, c. zenhtneri and c. argyrophylloides essential oils showed higher antioxidant activity than c. nepetaefolius.
Elementary chemical analysis in leaves infected by fumagina by X-Ray fluorescence technique
Blonski, Maria Sélia;Appoloni, Carlos Roberto;Parreira, Paulo Sérgio;Arago, Pedro Henrique Arruda;Nascimento Filho, Virgilio Franco;
Brazilian Archives of Biology and Technology , 2007, DOI: 10.1590/S1516-89132007000500013
Abstract: energy dispersion x-ray fluorescence technique (edxrf) was employed to study the effects of the fumagina disease on the elementary chemical composition of the leaves. the experimental set up consisted of a mo x-ray tube (ksubμ = 17.44 kev) with zr filter and a si (li) detector. the measurements were performed with the infected and healthy leaves of citric plants. the elements ti, mn, fe, cu and zn were quantified, with an average dl of 69, 12, 8, 4 and 4 μg.g-1 respectively. the obtained concentration for fe varied from 44 to 192 μg.g-1 in healthy leaves and from 363 to 704 μg.g-1 in infected leaves with fumagina .
O virus do mixoma no coelho do mato (Sylvilagus minenses), sua transmiss?o pelos Aedes scapularis e aegypti
Arago, Henrique Beaurepaire;
Memórias do Instituto Oswaldo Cruz , 1943, DOI: 10.1590/S0074-02761943000100010
Abstract: the brazilian wild rabbit (sylvilagus minensis) is sensible to the virus of the mixomatosis but the desease takes on it a mild character, lasts for long time and generally do not kill the animal. the tumors are generally smaller and less numerous than those of the domestic rabbit, but sometimes there were noted large and flat lesions (fig. 3). the natural infection of the wild rabbit may be quite common not only because many rabbits caught in the country were found to be immune as also because it was found among the animals caught in the country near rio, one that was infected with mixomatosis. the experimental infection of the sylvilagus may be easily obtained by cutan, subcutan or conjuntival way and also when a health wild rabbit is placed in the same cage with a sick domestic animal. it is also possible to obtain the infection of the wild and domestic rabbits by the bite of infected blood sucking insects as fleas and mosquitoes. the infected mosquito can transmit the disease 2 or 3 times til 17 days after an infective meal on a sick rabbit. the transmission is a mecanical one and only the proboscis of the insect contains the virus as it was shown by the inoculation of emulsions of the proboscis, thorax and abdomen of the mosquito. though mecanical this kind of transmission acts as an important epidemiological mean of dissemination of the deseasse and splains the suddendly outbreaks of mixomatosis in rabbits breedings where no new rabbits were introduced since very long time. the transmition of mixomatosis by fleas (slenopsylla) was at first demonstrated by us, then s. torres pointed out the capacity of culex fatigans to transmit the desease and now we have proved that aedes scapularis and aedes aegypti were also able to transmit it (foto 1 and 2). the virus of the mixomatosis (chlamidozoon mixoma) is seen on the smeavs of the tumors of the wild reabbit with the same morphology, as in the material of the domestic animal.
Efeitos da corrida em esteira em músculos sóleos de ratos encurtados por imobiliza??o
Natali, Luiz Henrique;Silva, Taciane Stein da;Ciena, Adriano Policam;Padoin, Maristela Jorge;Alves, éder Paulo Belato;Arago, Fernando Amancio;Bertolini, Gladson Ricardo Flor;
Revista Brasileira de Medicina do Esporte , 2008, DOI: 10.1590/S1517-86922008000600003
Abstract: the aim of this work was to compare weight and length adaptations of the soleus muscle of male wistar rats as well as estimation of the total number of serial sarcomere and mean sarcomere length, when they are submitted to remobilization on treadmill. 18 wistar male rats were used and divided in the three following groups: cg - left soleus (ls) muscle immobilized and remobilized free in the cage; g10 - ls muscle immobilized and remobilized in speed of 10 m/min on treadmill; and g12 - ls muscle immobilized and remobilized in speed of 12 m/min. the right muscles (rs) of each animal were used for comparison. the results showed the following variations, muscular weigh: cg -22.35% (p = 0.0089), g10 -12.52% (p = 0.0623), g12 -12.07%, (p = 0.0004); muscle length: cg -5.47% (p = 0.0120), g10 -3.31% (p = 0.2868), g12 0.41% (p = 0.8987); estimation of number of serial sarcomere: cg -15.42% (p = 0.0047), g10 -10.87% (p = 0.0193), g12 -4.97 (p = 0.2409); sarcomere length: cg 11.16%, (p = 0.0142), g10 9.31% (p = 0.1270), g12 5.58% (p = 0.1327). it was concluded that g12 presented the best effectiveness after immobilization period since it presented greater similarity with the non-immobilized soleus.
Sistema de informa??o dos núcleos de aten??o integral na saúde da família - SINAI
Véras, Mirella Maria Soares;Quinderé, Paulo Henrique Dias;Ferreira, Luciano Parente;Arago, Jeovania Maria Goersch Andrade;Coelho, Maria Abigail Aguiar Arruda;
Saúde e Sociedade , 2007, DOI: 10.1590/S0104-12902007000100015
Abstract: the city of sobral, state of ceará, brazil, introduced, in the year 2000, multi-professional teams in the family health program psf. these teams aimed to potentialize the actions of psf and to guarantee the integrality of care in promotion, prevention, assistance and rehabilitation. one of the difficulties encountered in the work process of these categories was the absence of an information system that registered the activities executed by the teams. understanding that information represents an important space for health development and production, a group was formed to elaborate a machine and software for the information system. this group was composed of professionals from the municipal health department, from the municipality's computer sector and interns of the family health school. the instrument that was created contains patient profiles, register of activities and of procedures, as well as notifiable complaints that were being defined. after the creation of the instrument, the software was developed. the operational system used was linux, php language, postgresql database, and it is accommodated on an apache web server. the system was called sinai at the beginning and provides important data for the development of indicators by various professionals, guaranteeing the production of epidemical information necessary for the process of control, evaluation and planning of team actions.
Leishmaniose tegumentar e sua transmiss?o pelos phlebotomos
Arago, Henrique de Beaurepaire;
Memórias do Instituto Oswaldo Cruz , 1927, DOI: 10.1590/S0074-02761927000200001
Abstract: from all that has been ascertained up to now, it would seem that the transmission of tegumentary leishmaniosis scarried out by different species of psychodids amongst them phlebotomus papaiasii, phlebotomus intermedius and phlebotomus argentipes. the epidemiollogy, the geographic superpoition between the area in which these insects exist and the area in which the disease is found, together with the results of the attempt to 'ransmit experimentally the disease by phlebotomi, all speak very much in favour of this. phlebotomi must not only transmit tegumentary leishmaniosis, but also indian kala-azar, as is demonstrated by experiment made up to date and very probably they are the transmitters, as yet unproven, of leishmaniosis infantum. it is always possible for a very active focus of tegumentary leshmaniosis to arise in a zone in which phlebotomi are plentiful, as happened in aguas ferreas, at the end of the valley of larangeiras and well within the town of rio de janeiro. facts observed in aguas ferreas 'entirely exclude the idea that leishmanias might be normally harboured by phlebotomi. other blood-sucking invertebrates (mosquitos, flies, ticks, bugs etc.) up to now accused of possibly transmitting tegumentary leihmaniosis do not appear to be able to do this. besides dogs, no other animal is proved to be able to act as a reservoir of the virus of tegumentary leishmaniosis and it is altogether unlikely that lizards should be able to act as such.
Observa??es sobre os Ixodideos da Republica Argentina
Arago, Henrique de Beaurepaire;
Memórias do Instituto Oswaldo Cruz , 1935, DOI: 10.1590/S0074-02761935000900011
Abstract: ixodidae of the argentine republic are studied by the author based on 71 lots of material, sent by prof. salvador mazza, comprising 13 different species, two of which are found in argentine territory: haemaphysalis kochi arag. and amblyomma parvitarsum nn. the author admits the existence in argentina of 23 species of ixodidae, but such number may still increase along with the development of the studies on the subject. in this paper, the ornithodoros classified by barbará and dios as ornithodoros turicata, is sunk by the author in synonymy with o. rostratus arag. not merely on the strength of the material at his disposal, but also by the plates published by the argentine authors. the following species are also placed in synonymy: amblyomma altiplanum dios, 1917 (= amblyomma parvitarsum nn., 1899), amblyomma concolor, nn., 1899 (=amblyomma auriculare conil, 1877) amblyomma furcula donitz, 1907 (= amblyomma neumani ribaga, 1902). in the author's opinion amblyomma striatum c. l. koch, 1844 and amblyomma fossum nn. are distinct species, so that the same amblyomma ovale for both should no longer subsist as l. c. robinson proposes. the author, moreover, shows his doubts upon the existence in argentine of aponomma laeve, nn., 1899 and dermacentor triangulus nn., 1899, as they have not been seen any more and in south-america no representatives of the genera aponomma and dermacentor are known.
Ixodidas brasileiros e de alguns paizes limitrophes
Arago, Henrique de Beaurepaire;
Memórias do Instituto Oswaldo Cruz , 1936, DOI: 10.1590/S0074-02761936000400004
Abstract: the knowledge of the ixodidae becomes every day, more and more important owing to the fact of the increasing number of diseases of man and animals they can transmit. in brasil besides transmitting treponemosis, piroplasmosis and anaplasmosis to several domestic animals, the ticks are also responsible fo the transmission of the brazilian rocky mountain spotted fever (a. cajennense and amblyomma striatum) and they can also harbour the virus of the yellow fever and even to transmit it in laboratory experiments (a. cajennense, o. rostratus). the brazilian fauna of ticks is a small one and has no more than 45 well-established species belonging to the genus argas, ornithodoros, ixodes, haemaphysalis, rhipicephalus, boophilus, amblyomma and spaelaeorhynchus. the genus amblyomma is the best represented one, with 67% of all species of ticks known in brazil. one of the most important species in the amblyomma cajennense owing to its abundance and its wide parasitism in many vertebrates: reptiles, birds and mammals, incluing man, who is much attacked by the larva, the nymph and the adult of this species. the other ticks who attack the man are the amblyomma brasiliense (the pecari tick), in the forests, and the ornithodoros, especially the species. o. rostratus and brasiliensis. other species can bite the man, but only occasionally, like amblyomma fossum, striatum, oblongogutatum etc. argas persicus, rhipicephalus sanguineus and boophilus are very important species not only as parasites but specially because they transmit several diseases to animals. some of the ticks of the brazilian wild animals are now also parasites of the domestic ones and vice-versa. arga persicus var. dissimilis is very common among the poultry and transmits the treponema anserinum (gallinarum). boophilus microplus is very abundant on our domestic and wild ruminants (bos, cervus, mazama etc.) and can also ben found on horse, dogs, felis onca, felis concolor etc., and it transmits to cattle piroplasmosis a
Page 1 /133177
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.