نتایج جستجو برای: lethal effect

تعداد نتایج: 1678148  

Journal: :journal of agricultural science and technology 2014
t. moadeli m. j. hejazi gh. golmohammadi

the beet armyworm (spodoptera exigua hübner) is an important pest of many agricultural crops all over the world. most of the sugar beet growing regions in iran are infested. in this study, the acute lethal effects of pyriproxyfen, spinosad, and indoxacarb as well as sublethal effects of pyriproxyfen on the 1st instar s. exigua were assessed by leaf dip bioassay method. mortality was recorded 48...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2012
ali benjavad talebi amin benjavad talebi

the purpose of the research was determine the effects of gamma ray on seed germination, seedling height and root length of rice (oryza sativa l. spp. indica cv. mr219) to identify the lethal dosage of the radiation. paddy seeds of mr219 were exposed to different doses of gamma radiations viz 50,100,150,200,250,300,350,400,450,500,600,700,800,900 and 1000 gy using 60co as the radiation source. t...

Journal: :iranian journal of toxicology 0
سیدعلی اکبر هدایتی seyed ali akbar hedayati department of fisheries, gorgan university of agricultural and natural resources, gorgan, iran. حامد غفاری فارسانی hamed ghafari farsani md, young researchers and elite club, shahrekord branch, islamic azad university, shahrekord, iran. سعید شهبازی ناصرآباد saeid shahbazi naserabad md, young researchers and elite club, yasuj branch, islamic azad university, yasuj, iran. محمد حسن گرامی mohammad hasan gerami phd candidate, young researchers and elite club, shiraz branch, islamic azad university, shiraz, iran.

background: diazinon is an organophosphorous pesticide which widely found in municipal, agricultural, and urban storm water discharges. the present study was conducted to achieve lethal concentration (lc50) and behavioral changes of rutilus rutilus caspius and hypophthal-micthys molitrix after exposure to lethal concentration of diazinon. methods: the experiment was carried out in static condit...

Journal: :Genetics 1988
K J Kemphues M Kusch N Wolf

We have analyzed a set of linkage group (LG) II maternal-effect lethal mutations in Caenorhabditis elegans isolated by a new screening procedure. Screens of 12,455 F1 progeny from mutagenized adults resulted in the recovery of 54 maternal-effect lethal mutations identifying 29 genes. Of the 54 mutations, 39 are strict maternal-effect mutations defining 17 genes. These 17 genes fall into two cla...

2015
Maria Gouma Elisa Gayán Javier Raso Santiago Condón Ignacio Álvarez

Commercial apple juice inoculated with Escherichia coli was treated with UV-C, heat (55°C) and dimethyl dicarbonate - DMDC (25, 50, and 75 mg/L)-, applied separately and in combination, in order to investigate the possibility of synergistic lethal effects. The inactivation levels resulting from each treatment applied individually for a maximum treatment time of 3.58 min were limited, reaching 1...

2014
Dara M. Wald Susan K. Jacobson Alfred L. Roca

Identifying stakeholder beliefs and attitudes is critical for resolving management conflicts. Debate over outdoor cat management is often described as a conflict between two groups, environmental advocates and animal welfare advocates, but little is known about the variables predicting differences among these critical stakeholder groups. We administered a mail survey to randomly selected stakeh...

Journal: :Antimicrobial agents and chemotherapy 2010
Muhammad Malik Kevin R Marks Heidi A Schwanz Nadezhda German Karl Drlica Robert J Kerns

Quinolones rapidly kill bacteria by two mechanisms, one that requires protein synthesis and one that does not. The latter, which is measured as lethal action in the presence of the protein synthesis inhibitor chloramphenicol, is enhanced by N-1 cyclopropyl and C-8 methoxy substituents, as seen with the highly lethal compound PD161144. In some compounds, such as levofloxacin, the N-1 and C-8 sub...

Journal: :Genetics 1939
N Kaliss

ECAUSE, as a rule, lethal genotypes have theireffect during emB bryogeny, where the tempo of development and the magnitude of the structural changes are most marked, they are particularly useful in investigating the role of the genes in development. Furthermore, a study of early-acting lethals offers the possibility of increasing our knowledge of the normal embryology of forms about which littl...

Journal: :PLoS ONE 2008
Xiaotu Ma Aaron M. Tarone Wenyuan Li

BACKGROUND Synthetic lethal genetic interaction analysis has been successfully applied to predicting the functions of genes and their pathway identities. In the context of synthetic lethal interaction data alone, the global similarity of synthetic lethal interaction patterns between two genes is used to predict gene function. With physical interaction data, such as protein-protein interactions,...

2012
Bing Zou

Lethal injections have been increasingly employed in China nowadays. Due to the lack of specific institutions in China’s legislation, there is no universal and definite standard for the options and execution procedure of lethal injections, causing lots of problems. Therefore, an option for lethal injections should be established and relevant execution procedure should be further improved as well.

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