نتایج جستجو برای: grman cockroach

تعداد نتایج: 2665  

Journal: :Applied and environmental microbiology 2010
Elizabeth A Ottesen Jared R Leadbetter

We examined the diversity of a marker gene for homoacetogens in two cockroach gut microbial communities. Formyltetrahydrofolate synthetase (FTHFS or fhs) libraries prepared from a wood-feeding cockroach, Cryptocercus punctulatus, were dominated by sequences that affiliated with termite gut treponemes. No spirochete-like sequences were recovered from the omnivorous roach Periplaneta americana, w...

Journal: :Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology 2008
Cynthia Lendor Alina Johnson Matthew Perzanowski Ginger L Chew Inge F Goldstein Elizabeth Kelvin Frederica Perera Rachel L Miller

BACKGROUND Season of birth has been associated with the development of atopy and asthma. Relationships among a particular birth season, maternal allergen exposure during the birth season, and childhood development of allergies to allergens in higher concentration during the birth season may be important. OBJECTIVE To investigate the effects of winter birth (January 1 to March 31) and prenatal...

Journal: :modares journal of medical sciences: pathobiology 2005
ali abedi mohammad said dayer

purpose: this investigation was undertaken to evaluate the potency of metarhizium anisoplea as a biological alternative to the biological control of german cockroaches. materials & methods: the fungal spores were applied against the male and female german cockroach, using two bioassay methods, viz the submerge application and the injection. the data was analysed and the mean mortality was ...

Journal: :iranian journal of public health 0
e oz h cetin je cilek o deveci a yanikoglu

background: to compare the effectiveness of 3 commercial gel bait formulations containing fipronil (goliath ã cockroach gel 0.05% ai), chlorpyrifos-a (clean bait ã gel, 2% ai), and chloropyrifos-b (serpa ã gel 2% ai) against german cock­roaches ( blattella germanica ) when stored at 23°c and 30° c after treatment. methods: laboratory bioassays consisted of placing groups of fifteen cockroaches ...

Journal: :Journal of immunology 2001
J Kim A C Merry J A Nemzek G L Bolgos J Siddiqui D G Remick

Asthma represents a serious health problem particularly for inner city children, and recent studies have identified that cockroach allergens trigger many of these asthmatic attacks. This study tested the concept that asthma-like pulmonary inflammation may be induced by house dust containing cockroach allergens. An aqueous extract was prepared from a house dust sample containing endotoxin and hi...

2008
ROBERT S. PFANNENSTIEL WARREN BOOTH EDWARD L. VARGO COBY SCHAL

Large numbers of a cockroach that resembled the German cockroach, Blattella germanica (L.), were observed duringwinter 2005Ð2006 in home turf settings inWeslaco, TX, 11 km from theU.S. borderwith northeasternMexico. In June and July 2006, this cockroachwas observed at night on the foliage of soybean,Glycine max (L.)Merr., in numbers often exceeding 50 per m row. Because of its similarity to B. ...

Journal: :Journal of medical entomology 2004
J Chad Gore Coby Schal

Exposure and sensitization to cockroach allergens is an important risk factor for allergic disease in humans. Despite a recent burgeoning of clinical and socioeconomic studies regarding environmental pervasiveness and human exposure to cockroach allergens, little is known about the basic biology of these proteins. The purpose of this study was to ascertain gene expression patterns and the tissu...

Journal: :iranian journal of public health 0
h. ladonni

this study was designed to evaluate the efficacy of beta-cyfluthrin (responsar 12.5% sc), against a standard susceptible strain of german cockroach, blattella germanica, using three different dosages, at three different exposure times, on two types of surface, parlous (mosaic) and non parous (glassed ceramic of tiles). comparison of the resifts indicated that beta-cyfluthrin at 12.5 a.i.mg/m2, ...

Journal: :journal of arthropod-borne diseases 0
afshin salehi college of paramedics, kashan university of medical sciences, kashan, iran hassan vatandoost department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran teimour hazratian departmemt of parasitology, faculty of medicine, tabriz university of medical sciences, tabriz, iran alireza sanei-dehkordi department of parasitology, school of medicine, kashan university of medical sciences, kashan, iran and department of medical entomology and vector control, faculty of health, hormozgan university of medical sciences, bandar abbas, iran hossein hooshyar social determinants in health promotion research center, hormozgan university of medical sciences, bandar abbas, iran mohsen arbabi social determinants in health promotion research center, hormozgan university of medical sciences, bandar abbas, iran

background : insecticide resistance is one of the serious problems for german cockroach control program. this study was conducted to determine the bendiocarb and carbaryl resistance mechanisms in german cockroaches using the piperonyl butoxide (pbo). methods : bioassay tests were conducted with 4 to 6 different concentrations of both insecticides with four replicates of 10 susceptible strain co...

Journal: :The Journal of experimental biology 2006
Sabine Hofer Uwe Homberg

The accessory medulla (AMe), a small neuropil in the optic lobe, houses the master circadian clock in the brain of the cockroach Leucophaea maderae and controls circadian rhythms in locomotor activity. Recently, members of the orcokinin family of crustacean neuropeptides were identified in a cockroach and a locust and were shown by immunocytochemistry to be prominently present in the AMe. In th...

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