background: the german cockroach, blattella germanica l . , is a serious household and public health pest worldwide. con­trol of this species has been very difficult to achieve. toxicity of cypermethrin ec10%, deltamethrin ec5%, diazi­non ec0.5%, lambda-cyhalothrin ec5% and negon® (permethrin+propoxur oil liquid1%) commercial for­mula­tions were investigated against adult males of german cockro...

amitraz is one of the pesticides which is used in a vast area for controlling of the common pistachio psyllid, agonoscena pistaciae (hem.: aphalaridae). in this study the synergistic effect of piperonyl butoxide (pbo) on the toxicity of amitraz on adults of rafsanjan population of common pistachio psyllid was evaluated by residual contact vial (rcv) in laboratory conditions. the results showed ...

in order to achieve prolong corneal contact time of norfloxacin(nfx) for treatment of extra ocular diseases, a ph triggered nanoparticulate in situ gelling system was designed to explore dual advantage of nanoparticles and in situ gelling system, for its ocular delivery. nfx loaded nanocarriers were developed by ionotropic gelation technique using chitosan as a matrix forming polymer, cross-lin...

thermal contact conductance (tcc) between an exhaust valve and its seat is one of the important parameters to be estimated in an internal combustion engine. an experimental study presented here to acquire temperature in some interior points to be used as inputs to an inverse analysis. an actual exhaust valve and its seat are utilized in a designed and constructed setup. conjugate gradient metho...

the acute and sub-acute toxicity of safranal were studied in rat and mice within 2 and 21 days after exposure, respectively. for subacute toxicity, changes in weight as well as biochemical, hematological and pathological parameters were studied. the intraperitoneal ld50 values of safranal were 1.48 ml/kg in male mice, 1.88 ml/kg in female mice and 1.50 ml/kg in male rats. oral ld50 values were ...

background: occupational contact dermatitis, especially in hand, is one of the most common occupational disorders. the present study aimed at evaluating patients with occupational allergic contact dermatitis (acd) caused by common allergens based on occupation type and disease history.   methods: this cross-sectional study aimed at evaluating the data of the patients with probable diagnosis of ...

Plants and microbes provide naturally occurring chemicals that are often used for the control of pests all around world. Biopesticides have been as a comparatively safer replacement synthetic pesticides past five decades. This study determined contact toxicity essential oils from Tithonia diversifolia plant against Thrips tabaci, Bemisia Aphis gosypii. The (Eos) were extracted dry leaves by hyd...

The aim of this study was to compare the effect dose prepared from two different stocks in an acute contact toxicity test honeybees, Apis mellifera L under laboratory condition. Dimethoate 30% EC contains active ingredient 90.18 % w/w which used as substance. conducted per OECD Guideline 214 (1998). stock solution 69.92 ppm (Stock I) and 4.3ppm II) were deionized water. evaluated against honeyb...