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Search Results: 1 - 10 of 737519 matches for " M.S.R.;PARRA "
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EFEITO DA TEMPERATURA NO PARASITISMO DE Trichogramma pretiosum Riley, 1879 SOBRE OVOS DE Sitotroga cerealella (Olivier, 1819)
Scientia Agricola , 1998, DOI: 10.1590/S0103-90161998000200009
Abstract: the effect of temperature was evaluated on egg parasitization of the angoumois grain moth, sitotroga cerealella (olivier, 1819), by trichogramma pretiosum riley, 1879 as a basis for mass production of t. pretiosum or biological control of s. cerealella in stored corn t. pretiosum parasitization was studied under six constant temperatures (18, 20, 22, 25, 30, and 32°c) and was evaluated through the counting number of darkened eggs (parasitization characteristic) and the number of emerged parasitoids. the highest temperatures were the best for t. pretiosum parasitization. at 30°c, 97.6% of the females were effective on parasitization with an average of 18.8 s. cerealella eggs per female during the first 48 h period and a high parasitoid emergence (88.5%).
EFEITO DA TEMPERATURA NO PARASITISMO DE Trichogramma pretiosum Riley, 1879 SOBRE OVOS DE Sitotroga cerealella (Olivier, 1819)
Scientia Agricola , 1998,
Abstract: Avaliou-se o efeito da temperatura no parasitismo de Trichogramma pretiosum Riley, 1879 sobre ovos de Sitotroga cerealella (Olivier, 1819), para sua utiliza o em cria es massais e/ou para o controle biológico desta tra a de gr os armazenados. Os parasitóides foram mantidos sob as temperaturas de 18, 20, 22, 25, 30 e 32°C, durante 48 horas, com umidade relativa de 60±10% e fotofase de 14 horas, em todas as condi es. O parasitismo foi avaliado pela contagem do número de ovos pretos (característica do parasitismo) e pelo número de parasitóides emergidos. As altas temperaturas foram favoráveis ao desempenho de T. pretiosum que, a 30°C teve 97,6% das fêmeas parasitando, com uma média de 18,8 ovos parasitados em 48 horas e com uma viabilidade de 88,5%.
Design and Verification of Serial Peripheral Interface using OVM
Archana Ramesh R,M.S.R.Sekhar
International Journal of Electronics Communication and Computer Technology , 2012,
Abstract: The main objective of the work is to design SPI Master Core using Verilog and verify the code using Open Verification Methodology. Serial Peripheral Interface (SPI) is an interface that facilitates the transfer of synchronous serial data, which is engineer’s favorite for its convenience and saving system resource. SPI (Serial Peripheral Interface) is a synchronous serial data link that operates in full duplex mode. It communicates in master/slave mode where the master device initiates the data frame. Multiple slave devices are allowed with individual slave select line .Serial Peripheral Interface of symmetrical structure can be synthesized using Xilinx 12.3, and then can be simulated using Questasim 10.0b. It is a popular interface used for connecting peripherals to each other and to microprocessors.
Replacement of Sesame Oil Cake by Duckweed (Lemna minor) in Broiler Diet
M.U. Ahammad,M.S.R. Swapon,T. Yeasmin,M.S. Rahman
Pakistan Journal of Biological Sciences , 2003,
Abstract: An experiment was conducted with 120, seven-day old Vencobb commercial broiler chick feeding ad libitum upto 42 days of age on 4 different iso-nitrogenous and iso-energetic diet formulated by replacing dietary sesame oil cake (SOC) by duckweed (DW) to have its effect on performance of broilers. Live weight, feed conversion and profitability increased when sesame oil cake was partially replaced by duck weed. Complete SOC replaced diet significantly reduced live weight gain, feed intake, feed conversion and profitability, as compared with partial replacement of SOC by duckweed and SOC based control diet. Partial replacement of SOC by DW did not affect survivability of broiler. So it might be concluded that replacement of costly SOC partially by cheaper unconventional DW in broiler diet resulted in increased profitability. Therefore, cheaper duckweed could be practiced in formulating economic balanced diet for broiler.
Ocorrência e danos de Hybolabus amazonicus Voss e Hybolabus columbinus (Erichson) (Coleoptera: Attelabidae) em castanheira, na Regi?o Amaz?nica
Garcia, Marcos V.B.;Ronchi-Teles, Beatriz;Andreazze, Ricardo;Pamplona, Ana M.S.R.;
Anais da Sociedade Entomológica do Brasil , 1997, DOI: 10.1590/S0301-80591997000100031
Abstract: the occurrence of hybolabus amazonicus voss and hybolabus columbinus (erickson) damaging leaves of the brazil nut (bertholietia excelsa, lecythidaceae) is reported. adults fed on the surface of the leaves causing damage, and females cut and rolled the young leaves for nest construction. injuries were more visible in young plants than in old ones.
Antibiogram and Plasmid Profile Analysis of Isolated Poultry Salmonella of Bangladesh
M.F.R. Khan,M.B. Rahman,M.S.R. Khan,K.H.M.N.H. Nazir
Pakistan Journal of Biological Sciences , 2005,
Abstract: Antibiogram study and plasmid profile analyses were conducted to find out the correlation of the recently isolated Salmonella organisms of Bangladesh. Antibiogram study revealed that the isolates were highly sensitive to Ciprofloxacin, Cephalexin and Kanamycin. In the plasmid profile analysis it was observed that out of 4 isolates of Mymensingh district (M1 to M4), 3 isolates showed 3 plasmid bands in each and 1 isolate showed 4 plasmid bands. The estimated size of the plasmid bands of M1, M2, M3 and M4 were (33.5, 24.50, 4.0, 3.0); (33.5, 3.0, 1.0); (33.5, 3.0, 1.0) and (5.0, 4.0, 1.8) kb, respectively. On the other hand among the isolates of Feni district (F1 to F9), 6 isolates (F4, F5, F6, F7, F8 and F9) showed 5 number of plasmid bands in each and the estimated plasmid band size were same (33.5, 5.0, 4.0, 2.0, 1.8). The plasmid bands of other 3 isolates (F1, F2 and F 3) were found to be different and the estimated size were recorded as 4 (33.5, 5.0, 1.6, 1.5); 3 (33.5, 1.6, 1.5) and 1 (0.7), respectively. Among the isolates of Dhaka district (D1 to D11); no plasmid band was found to be detected in 3 isolates (D2, D5 and D6). The number of plasmid bands of other isolates of D1, D3, D4, D7, D8, D9, D10 and D11 were 4 and the estimated size were determined as (33.5, 15.0, 2.0, 1.0); 5 (33.5, 15.0, 3.0, 2.0, 1.0); 5 (33.5, 5.0, 4.0, 1.8, 1.3); 3 (33.5, 3.0, 1.0); 3 (33.5, 3.0, 1.0); 1(33.5); 2 (33.5, 3.0) and 2 (33.5, 4.0) kb, respectively. All these isolates were tested for antibiotic sensitivity against 8 commonly used antibiotics belonging to different groups. From the antibiogram study it was revealed that all the isolates of Mymensingh and Dhaka district were 100% resistant to Cloxacillin and among the isolates of Feni district 100% were resistant to Erythromycin and Cloxacillin. Plasmid profile analysis of the isolated Salmonella organisms revealed that the isolates carrying multiple plasmids which might be the cause of various degree of antibiotic resistance.
Design of Coaxial fed Microstrip Patch Antenna for 2.4GHz BLUETOOTH Applications
Govardhani.Immadi,M.S.R.S Tejaswi,M.Venkata Narayana N.Anil Babu,G.Anupama
Journal of Emerging Trends in Computing and Information Sciences , 2011,
Abstract: In this paper, a novel design of small sized, low profile coaxial fed patch antenna is proposed for BLUETOOTH applications at 2.4GHz frequency. The patch shape is similar to and different parameters like return loss, VSWR, gain along Θ, directions, radiation pattern in 2-D and 3-D, axial ratio, E and H Field Distributions, Current Distributions are simulated using HFSS 13.0. The measured parameters satisfy required limits hence making the proposed antenna suitable for BLUETOOTH applications in 2.4GHz band.
Local Field Isolates of Infectious Bursal Disease Virus (IBDV) in Bangladesh can Induce Higher Immune Response in Chickens than that of the Commercially Available IBDV Vaccines
M.K. Hossain,M.M. Amin,M.S.R. Khan,M.R.R. Sarker,Y.Akhter,S.M.H. Rashid
Journal of Animal and Veterinary Advances , 2012,
Abstract: The aim of the study is to detect the causes of vaccination failure in chickens against IBD in Bangladesh. One selected local field IBDV isolate, one commercially available live attenuated IBDV vaccine Bur-706 (RP) and one killed IBDV vaccine Gumboriffa (RP) were used in this study. A total of 100 chicks (Star brow) of 0,7,14,21 and 28 days age group (taking 20 in each group) were used for study the serologic response with a selected local field IBDV isolate. Similarly two other vaccines were vaccinated in each 100 chicks of similar age groups. After collection of sera weekly for upto six weeks from all groups of birds they were subjected to SNT, PHA test and AGPT against a specific IBDV antigen. Through this investigation it is found that the local field IBDV isolate demonstrate higher serologic response than that of commercially available live or killed IBDV vaccines. So, it may be concluded that the commercially available imported vaccines can not induce sufficient immune response to protect the chickens in Bangladesh. It may be due to degradation of the vaccine quality during transportation or in a new environmental condition or due to antigenic dissimilarities among the local field virus and the imported vaccines.
Reverse transcription-polymerase chain reaction assay for rabies virus detection
Dantas Junior, J.V.;Kimura, L.M.S.;Ferreira, M.S.R.;Fialho, A.M.;Almeida, M.M.S.;Grégio, C.R.V.;Romijn, P.C.;Leite, J.P.G.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2004, DOI: 10.1590/S0102-09352004000300017
Abstract: este estudo teve por objetivo implantar um protocolo de amplifica??o gen?mica, precedida de transcri??o reversa (rt-pcr) para o gene da nucleoproteína do vírus da raiva, para a utiliza??o dessa metodologia em laboratórios onde s?o realizadas investiga??es para a detec??o do vírus rábico. foram utilizadas 50 amostras de tecido encefálico de animais (44 bovinos, 5 eqüinos e 1 quiróptero) oriundos do estado do rio de janeiro, positivos por imunofluorescência direta e/ou prova biológica para o vírus rábico. a extra??o do rna foi feita a partir da suspens?o a 10% em pbs ph7,2 do tecido encefálico utilizando-se a metodologia de trizoltm (life technologies) e o protocolo de rt-pcr descrito por heaton et al. (1997), incluindo algumas modifica??es. dentre as 50 amostras analisadas, 50 foram positivas pela prova biológica e pela rt-pcr e destas, 49 foram positivas pela imunofluorescência direta. estes resultados demonstram ser este protocolo de rt-pcr uma metodologia sensível, específica, rápida e extremamente valiosa, podendo ser utilizada como rotina em laboratórios que trabalham no diagnóstico de vírus rábico.
Human group C rotavirus in children with diarrhea in the Federal District, Brazil
Teixeira, J.M.S.;Camara, G.N.N.L.;Pimentel, P.F.V.;Ferreira, M.N.R.;Ferreira, M.S.R.;Alfieri, A.A.;Gentsch, J.R.;Leite, J.P.G.;
Brazilian Journal of Medical and Biological Research , 1998, DOI: 10.1590/S0100-879X1998001100005
Abstract: group c rotaviruses are fastidious in their in vitro cell culture requirements. recent serosurveys indicate that antibody to group c rotavirus is present in 3-45% of the human population in certain geographic locations, suggesting that rotavirus group c infection is more prevalent than previously believed and that the low rate of detection of these agents is probably due to the lack of sensitive diagnostic assays. from march to december 1994, 406 fecal specimens were collected from children under five years of age who were outpatients at the emergency services of nine public hospitals in brasília, federal district, brazil. in addition to the samples from children, one public outpatient unit requested virological investigation of a stool sample from an hiv-seropositive adult male with diarrhea of sudden onset. all samples were analyzed by enzyme immunoassay for group a rotavirus and adenovirus (eiara) and by polyacrylamide gel electrophoresis (page). one hundred and seven (26%) were positive for group a rotavirus. four samples from children and the sample from the hiv-seropositive patient, although negative by eiara, showed a group c rotavirus profile by page and were positive for rotavirus by electron microscopy. using specific vp6 and vp7 primers for group c rotavirus, a reverse transcriptase-polymerase chain reaction (rt-pcr) was performed and products were detected by agarose gel electrophoresis and ethidium bromide staining. these products were confirmed to be specific for group c rotavirus by using digoxigenin-oligonucleotide probes, southern hybridization and chemiluminescent detection. the five positive group c rotavirus samples were detected in august (3 samples) and september (2 samples). to the best of our knowledge, this is the first report of group c rotavirus detected in the federal district, brazil and in an hiv-seropositive patient with acute gastroenteritis.
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