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Search Results: 1 - 10 of 1325 matches for " yellow sarson "
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Breeding for an ideal plant type in yellow sarson (Brassica rapa L. yellow sarson)
S. P. Sinhamahapatra, Ram Babu Raman, Somnath Roy, Uday Sankar Roy, Narendra M. Raut and Kale Vinod Ashok
Electronic Journal of Plant Breeding , 2010,
Abstract: Yield improvement has always been an important objective for plant breeders although seed yield is a complex trait influencedby several component characters. The present paper reports the efforts made to develop lines of yellow sarson with someestablished morpho-phisiological characters contributing to seed yield. A spontaneous erectophyle multilocular siliqua mutantwas first used to transfer this trait into improved breeding lines. Both multilocular and bilocular siliqua types were comparablein seed yield but bilocular types recorded significantly higher number of siliqua per plant while tetralocular types recordedsignificantly larger number of seeds per siliqua. Erectophyle siliqua orientation was then established to be more productive thanother posture like pendant or horizontal. A spontaneous basal branching mutant was then used to transfer this trait into thebreeding lines and incorporated lines produced more number of siliqua per plant through increase in number of branches. Aspontaneous apetalous mutant was isolated and this trait was transferred to the elite breeding lines. Among different groupswaxy multilocular apetalous groups recorded significantly higher seed yield per plant. Thus the long term research effortsestablished the concept of achieving a high yielding ideotype in yellow sarson through incorporation of some morpho-physicaltraits following classical breeding.
Developmental Response of Cabbage Butterfly, Pieris brassicae L. (Lepidoptera: Pieridae) on Different Cole Crops Under Laboratory and Field Condition
Arshad Ali,Parvez Qamar Rizvi
Asian Journal of Plant Sciences , 2007,
Abstract: An attempt was made to find out the developmental response of cabbage butterfly, Pieris brassicae on different cole crops under Laboratory and field condition. The overall development of P. brassicae was recorded significantly higher on yellow sarson (40.70±2.38 and 37.87±1.93 days) as compared to lower on cabbage (34.15±1.80 and 33.12±1.95 days), under laboratory and field condition, respectively (p≤0.05). All the developmental stages (egg, larval instars, prepupal and pupal) of P. brassicae was registered their maximum development period on yellow sarson followed by gobhi sarson, cauliflower and cabbage under both conditions. However, the maximum development period of adult was recorded on cabbage and minimum on yellow sarson in both situations. The cabbage butterfly tuned their highest generation mortality on yellow sarson (0.3565 and 0.3645) in contrast to lowest on cabbage (0.2555 and 0.2486) in both laboratory and field conditions, respectively. The number of adults was recorded maximum in laboratory than the field condition on all the cole crops. It is possible due to the presence of natural enemies (predators and parasitoids), abiotic factors (temperature, relative humidity and rainfall) and some unknown factors in the field condition.
Heterosis studies in brown sarson (Brassica rapa L.)
Z. A. Dar*, Shafiq A. Wani., Gulzaffar, M. Habib, Sofi, N. R., Ahmed, I., Ahmed , Z and M. H. Khan
Electronic Journal of Plant Breeding , 2012,
Abstract: Heterosis was estimated over mid and better parent, respectively among 45 F1 hybrids for seed yield and related traits.. The mostdesirable cross combination viz., CR-1485 x CR-1607 for seed yield plant-1 also showed desirable mid and better parent heterosisfor 1000-seed weight and primary branches plant-1. The cross combinations CR-1485 x CR-1607 (primary branches plant-1), CR-1630 x KS-101 (secondary branches plant-1), CR-2638 x KOS-1 (number of siliquae on main raceme), CR-1630 x CR-2871(number of siliquae plant-1), CR-1607 x KOS-1 (days to maturity) and KOS-1 x KS-101 (oil content) showed highest mid andbetter parent heterosis. These cross combinations also revealed high per se performance.
Extraction Method and Determination of Sudan I Present in Sunset Yellow FCF by Isocratic High-Performance Liquid Chromatography  [PDF]
Chiye Tatebe, Takashi Ohtsuki, Noriko Otsuki, Hiroki Kubota, Kyoko Sato, Hiroshi Akiyama, Yoko Kawamura
American Journal of Analytical Chemistry (AJAC) , 2012, DOI: 10.4236/ajac.2012.38075
Abstract: A method to extract and analyze Sudan I present in Sunset Yellow FCF (SYF) products was developed and validated. The method included the simple extraction of Sudan I from the SYF product using water, acetonitrile, and ethyl acetate and high-performance liquid chromatography (HPLC) analysis with isocratic elution using acetonitrile:water (7:3) with a photodiode array detector at 485 nm. This method was found to remove most of the excess SYF colorant and other impurities before injection to the HPLC instrument, making it easy to maintain precision control in routine laboratory tests for Sudan I in the SYF colorant. The detection limit of Sudan I in SYF products was 0.2 μg/g. A survey conducted to determine Sudan I in 13 commercial SYF samples from Japanese manufacturers from 1970 to 2010 showed that the levels of Sudan I ranged from 0.3 to 1.9 μg/g in products manufactured from 1970 to 1996 and were below the limit of detection in products manufactured after 2005.
Modulation of Specific Apoptotic DNA Fragmentation after Short Term Exposure to Natural UVR in Fish Larvae  [PDF]
Cindy Provencher, Andrea Bertolo, Pierre Magnan, Maria-Grazia Martinoli
Open Journal of Apoptosis (OJApo) , 2014, DOI: 10.4236/ojapo.2014.33005
Abstract: The goal of this study was to determine the short-term effects of the quality (UV-A/UV-B ratio) and quantity (irradiance) of natural ultraviolet radiation (UVR) on the apoptosis levels in Yellow perch (Perca flavescens) larvae. Apoptosis, or programmed cell death, is an essential event in many physiological processes as well as in pathological conditions. Western blots were used to measure the expression of several key proteins of the apoptotic cascade, such as p53, Bax, Bcl-2, and PARP-1, whereas specific apoptotic DNA fragmentation was measured by an ELISA assay. We predicted that higher UVR exposure would be related to higher levels of apoptosis. Our results showed that specific apoptotic DNA fragmentation was reduced by visible light + UV-A as well as by visible light + UV-A and UV-B treatments although it was not significantly affected by light quantity. However, the expression of p53, Bax/Bcl-2 ratio and PARP-1 were not significantly affected in larvae by the quantity or the quality of the light after two days of exposure. Altogether our results suggest that UVR may modulate the apoptotic process in Yellow perch larvae proposing an interesting role for this stressor on the early development of living organism under natural exposure condition.
Aspectos críticos do controle da febre amarela no Brasil
Tauil,Pedro Luiz;
Revista de Saúde Pública , 2010, DOI: 10.1590/S0034-89102010005000014
Abstract: this paper presents epidemiological and control characteristics of yellow fever in brazil, taking its wild and urban transmission cycles into consideration. no urban cases have been reported in brazil since 1942, but urban yellow fever cases were reported in paraguay in 2008, after more than 50 years without registered cases in the americas. the two main objectives of yellow fever control programs in brazil are to reduce the number of wild cases and to maintain zero incidence of urban cases. although there is a consensus regarding control measures that should be applied in areas endemic for the wild form, this is not so in relation to areas infested by aedes aegypti. the arguments for and against expansion of the vaccination area are discussed. environmental and entomological studies are needed so that areas receptive to wild-type transmission can be recognized, even if they have been silent for many years.
The thermal stability of yellow fever vaccines
Ishak, Ricardo;Howard, Colin R.;
Memórias do Instituto Oswaldo Cruz , 1990, DOI: 10.1590/S0074-02761990000300011
Abstract: the assessment of yellow fever vaccine thermostability both in lyophilized form and after reconstitution were analyzed. two commercial yellow fever vaccines were assayed for their thermal stability. vaccines were exposed to test temperatures in the range of 8 (graus) c to 45 (graus) c. residual infectivity was measured by a plaque assay using vero cells. the titre values were used in an accelerated degradation test that follows the arrhenius equation and the minimum immunizing dose was assumed to be 10 (ao cubo) particles forming unit (pfu)/dose. some of the most relevant results include that (i) regular culture medium show the same degradation pattern of a reconstituted 17d-204 vaccine; (ii) reconstituted yf-17d-204 showed a predictable half life of more than six days if kept at 0 (graus) c; (iii) there are differences in thermostability between different products that are probably due to both presence of stabilizers in the preparation and the modernization in the vaccine production; (iv) it is important to establish a proper correlation between the mouse infectivity test and the plaque assay since the last appears to be more simple, economical, and practical for small laboratories to assess the potency of the vaccine, and (v) the accelerated degradation test appears to be the best procedure to quantify the thermostability of biological products.
Superdosagem da vacina 17DD contra febre amarela, em uma regi?o do sul do Brasil
Carneiro, Marcelo;Lara, Beanir da Silva;Schimidt, Betina;Gais, Lediana;
Revista da Sociedade Brasileira de Medicina Tropical , 2011, DOI: 10.1590/S0037-86822011000200025
Abstract: introduction: yellow fever is a preventable disease when using a safe, effective vaccine. methods: a prospective clinical follow-up of 49 people who received an overdose of the wrong vaccine against yellow fever during the 2009 outbreak in a rural area of the vale do rio pardo, state of rio grande do sul. results: during 45 days of clinical follow-up, only 1 (2.1%) case presented manifestations of a possible acute viscerotropism as an adverse postvaccination event. conclusions: in the group of people monitored following an overdose of anti-yellow fever vaccine, observation confirmed almost total absence of adverse events.
A cien a?os de la puesta en práctica del gran descubrimiento de Finlay*
López Espinosa,José Antonio;
Revista Cubana de Medicina General Integral , 2001,
Abstract: one of the most relevant events in the latin american and cuban medicine history in all times was the confirmation and implementation at the end of 1900 and beginning of 1901 of the theory advocated by dr. carlos j. finlay barrés since 1881 about the role of aedes aegypti mosquito as the yellow fever-transmitting agent. this article is aimed at providing some details about this event so as to change somehow the faded and dusty aspect of this event given by the course of time, as well as to pay homage in a modest way to this cuban wise man and remember the place where 100 years ago it was proved to the scientific world by conclusive tests that his works were the highest real scientific achievements up to that moment
A mortality study of the last outbreak of yellow fever in Barcelona City (Spain) in 1870
Canela Soler,Jaume; Pallarés Fusté,Maria Rosa; Abós Herràndiz,Rafael; Nebot Adell,Carme; Lawrence,Robert S.;
Gaceta Sanitaria , 2009, DOI: 10.1590/S0213-91112009000400007
Abstract: background: the last outbreak of yellow fever in the city of barcelona, spain, was caused by a ship arriving from cuba. the objective of this study was to describe and analyze the epidemic of 1870 by using the available mortality data. methods: the information on 1,235 deaths identified in the parochial registries was analyzed, using statistical and epidemiological procedures for epidemic outbreaks. results: mortality due to yellow fever was 549.7 per 100,000 inhabitants. the temporal distribution of the deaths showed two peaks at the end of september and october with the last fatalities occurring in december 1870. the distribution of the fatalities in the city's neighborhoods was unequal. in la barceloneta, in particular, more fatalities were found in the streets adjacent to the port than in the most remote streets (r=0.83; p<0.0001). conclusions: this study reveals a temporal bimodal mortality distribution for yellow fever during the outbreak, with a high impact in adult men and in the la barceloneta neighborhood.
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