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Search Results: 1 - 10 of 235398 matches for " CéSAR FREIRE CARVALHO "
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Still's Disease and Recurrent Complex Regional Pain Syndrome Type-I: The First Description
César Faillace,Jozélio Freire de Carvalho
Autoimmune Diseases , 2012, DOI: 10.1155/2012/842564
Abstract: Complex regional pain syndrome (CRPS) is a chronic neuropathic pain disorder characterized by neuropathic pain associated with local edema and changes suggestive of autonomic involvement such as altered sweating, skin color, and skin temperature of the affected region. CRPS was described associated with several diseases, such as trauma, psychiatric conditions, and cancer. However, no case associated with Still's disease has been previously described. In this paper, the authors describe the first case of CRPS associated with Still's disease. 1. Introduction Complex regional pain syndrome (CRPS), also known as reflex sympathetic dystrophy and causalgia, algodystrophy, Sudeck’s atrophy, hand-shoulder syndrome, neuroalgodystrophy, and posttraumatic sympathetic dystrophy, is a chronic neuropathic pain disorder characterized by autonomic findings and typically develops in an extremity after acute tissue trauma. In addition to classic neuropathic pain characteristics (intense burning pain, hyperalgesia, and allodynia), CRPS is associated with local edema and changes suggestive of autonomic involvement (altered sweating, skin color, and skin temperature in the affected region). Trophic changes to the skin, hair, and nails and altered motor function (loss of strength, decreased active range of motion, and tremors) may also occur. CRPS is subdivided to CRPS-I (reflex sympathetic dystrophy) and CRPS-II (causalgia), reflecting the absence or presence of documented nerve injury, respectively [1]. Although CRPS was first described in isolation, it can be linked to several diseases, such as trauma [1], psychiatric conditions [2], and cancer [3]. However, no case associated with Still’s disease has been previously described. Therefore, the objective of this study was to describe the first case of CRPS associated with Still’s disease. 2. Case Report A 50-year-old female began to complain in 2005 of polyarthritis of her knees, wrists, elbows, ankles, and hand metacarpophalangeal joints associated with fever, morning stiffness (for 4 hours), and evanescent rash. Laboratory results demonstrated leukocytosis, high levels of ferritin 401?ng/mL (reference value: 22–322?ng/mL), and erythrocyte sedimentation rate of 57?mm/1st hour. Antinuclear antibodies and rheumatoid factor were absent. Serologies for B and C hepatitis, HIV, HTLV 1 and 2, Epstein-Barr, rubella, toxoplasmosis, mononucleosis, rubella, and syphilis were negative. Echocardiography, liver and renal functions, myelogram, and bone marrow biopsy were also normal. A diagnosis of adult Still’s disease was performed,
Invers?o da sacarose utilizando ácido cítrico e suco de lim?o para preparo de dieta energética de Apis mellifera Linnaeus, 1758
Brighenti, Deodoro Magno;Carvalho, César Freire;Brighenti, Carla Regina Guimar?es;Carvalho, Stephan Malfitano;
Ciência e Agrotecnologia , 2011, DOI: 10.1590/S1413-70542011000200010
Abstract: in times of nectar shortage, food supplementation using "inverted sugar" obtained by sucrose hydrolysis in an acid environment by heating can be supplied to the hive, forming a glucose and fructose mixture. the acid usually used in such a reaction is the citric acid, however, due to the difficulty that small producers have to obtain the product commercially, an alternative would be to replace it with lemon juice. the objective of this work was to quantify the inversion of sucrose present in apis mellifera worker diets by employing commercial citric acid and lemon juice. a total of 21 aqueous solutions of granulated sugar at the proportion of 100 g/100 ml were prepared, placing in each one 1.0; 2.0; 3.0; 5.0; 10.0; 15.0 or 20.0 ml of the juices of the galego [citrus aurantifolia (c.) swingle], tahiti [citrus latifolia tanaka] or cravo [citrus limonia (l.) osbeck] lemon varieties. in addition to those, six other aqueous sucrose solutions were prepared by adding 0.0 (control); 0.16; 0.3; 0.5 and 0.7 g citric acid. sucrose inversion was quantified by using the somogyi-nelson method. for the cravo lemon, the lowest inversion rate was found. regarding the addition of citric acid, it was estimated that in placing 0.1 g, the inversion was of 12.2% while with 0.16 g, an inversion of 18.8% sucrose present in the solution. the maximum amount of citric acid to be added was estimated to be 0.18 g, adopting as a criterion the mean ph of 3.3 in africanized bee honey. if galego, tahiti and cravo lemon juices are used as replacements for the citric acid, the maximum added amount should be 2.1, 3.6 and 5.3 ml, respectively, for each 100 g sugar/100 ml water, at fixed ph of 3.3. considering the inversion rate and ph level recommended for the use of citric acid, tahiti lemon juice provides better results.
Eficiência do Bacillus thuringiensis var. kurstaki (Berliner, 1915) no controle da tra?a da cera Galleria mellonella (Linnaeus, 1758) (Lepidoptera: Pyralidae)
Brighenti, Deodoro Magno;Carvalho, César Freire;Carvalho, Geraldo Andrade;Brighenti, Carla Regina G.;
Ciência e Agrotecnologia , 2005, DOI: 10.1590/S1413-70542005000100007
Abstract: this research aim at evaluating the efficiency of bacillus thruringiensis var. kurstaki (berliner) in the control of galleria mellonella (linnaeus).the experiments were conducted in the insect biology laboratory of the entomology department of the universidade federal de lavras - ufla, lavras, mg, brazil, at 28±2oc, rh 70±10% and 12-hour photophase. commercial formulation of b. thuringiensis. var. kurstaki was applied through spraying, comb soaking and also incorporated into the artificial diet fed to third instar caterpillars of the greater wax moth. application of b. thuringiensis var. kurstaki through the spraying of the combs was efficient for control, reaching levels equal or larger than 85% of mortality when 5 g/100 ml of water were utilized. in the application by soaking of the combs all the dosages tested were efficient reaching up to 100% of mortality. added to the artificial diet, the concentration with the greatest percentage of mortality was of 10 g/60 g of diet. symptoms of infection by b. thruringiensis were identified both in the caterpillars and the isolation of the bacterium through a culture of bacillus, proved to be the responsible of mortality of those insects at all the dosages of commercial formulation of b. thuringiensis var. kurstaki utilized.
Toxicidade de acaricidas a ovos e adultos de Ceraeochrysa cubana (Hagen, 1861) (Neuroptera: Chrysopidae)
Carvalho, Geraldo Andrade;Carvalho, César Freire;Ferreira, Márcio do Nascimento;
Ciência e Agrotecnologia , 2011, DOI: 10.1590/S1413-70542011000100021
Abstract: the objective of this work was to evaluate the effects of thirteen acaricides on eggs and adults of the lacewing ceraeochrysa cubana (hagen, 1861). the acaricides were sprayed using a potter's tower at the rate recommended for mite control in citrus orchard. the trials were performed in climatic chamber at 25 ± 2o c, 70 ± 10% rh and photophase of 12 hours. the egg stage showed high tolerance to the tested acaricides. carbosulfan and triazophos caused 100% adult mortality, whereas bifenthrin and fenpropathrin caused around 60%. all other acaricides, dicofol, bromopropylate, tetradifon, clofentezine, abamectin, hexythiazox, cyhexatin and fenibutatin oxide did not cause mortality of c. cubana adult. flufenoxuron reduced adult egg laying and all eggs were nonviable. according to iobc scale, the acaricides carbosulfan, triazophos and flufenoxuron were classified into class 4 = harmful; bifenthrin and fenpropathrin into class 2 = slightly toxic; and dicofol, clofentezine, abamectin, hexythiazox, cyhexatin, and fenbutatin oxide into class 1 = harmless to c. cubana. the compounds classified as first class may be recommended in programs of integrated pest management of citrus aiming at the integration between the biological and chemical control through this kind of predator.
Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions
Costa, Denilson Bezerra;Souza, Brígida;Carvalho, Geraldo Andrade;Carvalho, César Freire;
Ciência e Agrotecnologia , 2003, DOI: 10.1590/S1413-70542003000400014
Abstract: abstract - this work was designed to evaluate the residual action of the insecticides trichlorfon, triflumuron, endosulfan, fenpropathrin, chlorpirifos, tebufenozide and esfenvalerate, sprayed on cotton plants, to second-instar larvae of chrysoperla externa (hagen, 1861), under greenhouse conditions. the experimental design was completely randomized with ten replicates. three larvae were released on each plant, in the 1st, 12th and 23rd day after pesticides spray. tebufenozide and esfenvalerate were little persistent (class one), while trichlorfon, triflumuron and endosulfan were slightly persistent, decreasing the survival of c. externa larvae over 30%, up to 14 days after spray. fenpropathrin and chlorpirifos caused mortality over 30%, up to 25 days after spray, being classified as fairly persistent.
Effects of pesticides on eggs of Chrysoperla externa (Neuroptera: Chrysopidae) and consequences on subsequent development Efectos de los plaguicidas en huevos de Chrysoperla externa (Neuroptera: Chrysopidae) y las consecuencias sobre su desarrollo
Revista Colombiana de Entomología , 2012,
Abstract: The effects of six pesticides applied to the coffee crop on eggs and their consequences on the subsequent developmental stages of Chrysoperla externa (Neuroptera: Chrysopidae) were evaluated under laboratory conditions. The pesticides and water (control) were sprayed on eggs using a Potter's tower. After spraying, forty eggs per treatment were individualized in glass tubes and maintained in a climatic chamber, in order to evaluate immature development of this predator. The treatments showed significant differences for egg viability and survival of first-instar larvae. Chlorpyrifos, sulphur and copper oxichlorate reduced the treated egg viability, whereas both sulphur and betacyfluthrin reduced the survival of first-instar larvae. Endosulphan and azociclotin reduced the daily oviposition of this green lacewing species. The harmless products (Class 1, E < 30%), can be recommended for use in integrated pest management programs in coffee crops, in order to preserve this predator. Los efectos de seis plaguicidas aplicados al cultivo de café sobre los huevos y etapas de desarrollo posteriores de Chrysoperla externa (Neuroptera: Chrysopidae), fueron evaluados bajo condiciones de laboratorio. Los plaguicidas y el agua (control) fueron aplicados en los huevos usando una torre de Potter. Después de la aplicación, cuarenta huevos por tratamiento fueron individualizados en tubos de vidrio y mantenidos en cámara bioclimática, con el objetivo de verificar las posibles anormalidades en el desarrollo de este depredador. Los tratamientos mostraron diferencias significativas para la viabilidad de los huevos y la supervivencia del primer instar larval. Chlorpyrifos, azufre y oxicloruro de cobre redujeron la viabilidad de los huevos tratados, mientras que el azufre y el betacyfluthrin redujeron la supervivencia del primer instar larval. Endosulfán y azociclotin redujo la oviposición diaria de esta especie crisopa. Los productos inocuos (Clase 1, E < 30%), pueden recomendarse para su uso en programas integrados de manejo de plagas en los cultivos de café, a fin de preservar este depredador.
Survival analysis applied to the development of Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) on fungicide-contaminated cucumber plants (Cucumis sativus L.) Análise de sobrevivência aplicada ao desenvolvimento do pulg o Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) em plantas de pepino (Cucumis sativus L.) contaminadas com fungicidas
Ronelza Rodrigues da Costa Zaché,Geraldo Andrade Carvalho,Marcelo ?ngelo Cirillo,César Freire Carvalho
Semina : Ciências Agrárias , 2011,
Abstract: It was aimed to evaluate the influence of fungicides utilized in cucumber on the development of the aphid Aphis gossypii Glover under greenhouse conditions. The experimental design was completely randomized with four treatments and 45 replicates, being each plot consisting of a first instar nymph coming from an apterous female in early reproductive period. The fungicides utilized and their respective dosages at g i.a.L-1 were 800 PM sulphur (1.6), 800 PM mancozeb (1.6) and 840 PM copper oxichloride (1.5). The control was made up of water only. The products did not influence the median time of life in each instar and the nymphal stage, being respectively 1 and 4 days. Copper oxychloride and mancozeb increased the median time of life in days and the total life cycle of the adult stage of this species. Objetivou-se avaliar a influência de fungicidas utilizados em cultura de pepino sobre o desenvolvimento do pulg o Aphis gossypii Glover, em condi es de casa-de-vegeta o. O delineamento experimental foi inteiramente ao acaso com quatro tratamentos e 45 repeti es, sendo cada parcela composta por uma ninfa de primeiro ínstar, proveniente de uma fêmea áptera no início do período reprodutivo. Os fungicidas utilizados e suas respectivas dosagens em g i.a.L-1, foram enxofre 800 PM (1,6), mancozebe 800 PM (1,6) e oxicloreto de cobre 840 PM (1,5). A testemunha foi composta somente por água. Todos os produtos avaliados n o influenciaram a dura o e viabilidade ninfal. Oxicloreto de cobre causou aumento da dura o do ciclo biológico total desse afídeo. Houve efeito da aplica o do enxofre e do oxicloreto de cobre sobre seu período reprodutivo, tornando-o 1,7 vezes menor e maior, respectivamente. Oxicloreto de cobre provocou aumento de 2,15 vezes na produ o total de ninfas.
A o de produtos fitossanitários utilizados em cafeeiros sobre pupas e adultos de Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae)
Silva Rogério Ant?nio,Carvalho Geraldo Andrade,Carvalho César Freire,Reis Paulo Rebelles
Ciência Rural , 2006,
Abstract: Avaliou-se a a o de produtos fitossanitários usados em cafeeiros sobre pupas e adultos de Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae). Os bioensaios foram conduzidos no Departamento de Entomologia da Universidade Federal de Lavras - UFLA, Lavras, MG, Brasil. Os tratamentos avaliados, em g i.a.L-1 de água, foram: 1- endosulfan (Thiodan 350 CE - 1,75), 2- chlorpyrifos (Lorsban 480 CE -1,2), 3- betacyfluthrin (Turbo 50 CE - 0,013), 4- enxofre (Kumulus 800 PM - 4,0), 5- azocyclotin (Peropal 250 PM - 0,31), 6- oxicloreto de cobre (Cuprogarb 500 PM - 5,0) e 7- Testemunha (água). As pulveriza es foram realizadas diretamente sobre pupas e adultos do crisopídeo por meio de torre de Potter. As pupas foram colocadas em tubos de vidro e os adultos em gaiolas de PVC, e mantidos em sala climatizada a 25 ? 2degreesC, UR de 70 ? 10% e fotofase de 12 horas. O delineamento experimental foi inteiramente casualizado, com sete tratamentos e dez repeti es, sendo cada parcela formada por quatro pupas ou um casal de C. externa. Os produtos foram distribuídos nas quatro classes de toxicidade conforme escala estabelecida pela IOBC. O chlorpyrifos mostrou-se levemente nocivo para pupas (classe 2, 30?E?79%), e os demais produtos foram inócuos (classe 1, E<30%). O endosulfan, enxofre, azocyclotin e oxicloreto de cobre foram inócuos em adultos, enquanto o betacyfluthrin foi moderadamente nocivo (classe 3, 80?E?99%) e o chlorpyrifos foi nocivo (classe 4, E>99%). Os produtos testados à base de endosulfan, enxofre, azocyclotin e oxicloreto de cobre podem ser recomendados em programas de manejo de pragas do cafeeiro em associa o com C. externa, em fun o da baixa toxidade apresentada por esses compostos ao predador.
Bioatividade do Bacillus thuringiensis var. kurstaki (Berliner, 1915) para adultos de Apis mellifera Linnaeus, 1758 (Hymenoptera: Apidae)
Brighenti, Deodoro Magno;Carvalho, César Freire;Carvalho, Geraldo Andrade;Brighenti, Carla Regina G.;Carvalho, Stephan Malfitano;
Ciência e Agrotecnologia , 2007, DOI: 10.1590/S1413-70542007000200003
Abstract: the effects of bacillus thuringiensis var. kurstaki (berliner) on adults of apis mellifera linnaeus were evaluated. the bioassays were carried out under controlled conditions at 25±2oc, rh 70±10% and 12-h photophase. adults of a. mellifera were exposed to the commercial product dipel? pm. the following methods were used: direct spraying; supplying bt with honey aqueous solution; and by a candy paste added to bt. b. thuringiensis caused mortality on a. mellifera adults, independent of the method used, except at 0.25 g of bt/100 ml added to the honey aqueous solution. b. thuringiensis added to the candy paste showed cl50 and cl90 of 0.325 g and 2.127 g of the product to 60 g of candy paste, respectively. dipel? pm added to the honey aqueous solution showed cl50 and cl90 of 1.403 g and 7.759 g of b. thuringiensis/100 ml, respectively. infection symptoms by b. thuringiensis were identified on bees adult and by isolation of this bacterium, the toxicity of b. thuringiensis on a. mellifera was confirmed.
Aspectos da biologia de Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) em quatro cultivares dealgodoeiro, em laboratório
Pessoa, Luis Gustavo Amorim;Souza, Brígida;Carvalho, César Freire;Silva, Marlene Gon?alves;
Ciência e Agrotecnologia , 2004, DOI: 10.1590/S1413-70542004000600003
Abstract: it was aimed to study some biological aspects of aphis gossypii glover fed on cotton cultivars allen, ipeaco-sl 21-61131, jpm 781-88-3 and auburn sm 310 in experiments conducted at 25 ± 2oc, 60 ± 10% of rh and 12-hour photophase in a completely randomized design. adult females obtained after the last ecdysis were mantained on leaf disks of those cultivars for 24 hours and from the produced nymphs, one was chosen at random for the conduction of the experiment. the density and the sorts of trichomes on each cultivar were evaluated. the cultivar jpm 781-88-3 enabled the best development of the aphid with a daily production of 4.2 ± 0.1 nymphs/female and a total of 69.2 ± 2.1. on the cultivar ipeaco-sl 22-61131, a lenghtening of the nymphal stage and reduced fecundity took place with a daily mean of 3.0 ± 0.3 nymphs/female and a whole of 54.9 ± 2.2 nymphs/female. the cultivar auburn sm 310 affected the biological cycle of this aphid, reducing its duration. as regards the sorts of trichome, star-shaped non-glandular and glandular structures were identified, with the predominance of the first type. the highest densities of non-glandular trichomes were found on the cultivars allen and ipeaco-sl 21-61131 while the glandular ones occurred in a greater number on the cultivars jpm 781-88-3 and allen. on auburn sm 310 no sort of trichom was found.
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