نتایج جستجو برای: scale insect
تعداد نتایج: 614389 فیلتر نتایج به سال:
Phenology models are becoming increasingly important tools to accurately predict how climate change will impact the life histories of organisms. We propose a class of integral projection phenology models derived from stochastic individual-based models of insect development and demography. Our derivation, which is based on the rate summation concept, produces integral projection models that capt...
Landscape context affects predator-prey interactions and predator diet composition, yet little is known about landscape effects on insect gut microbiomes, a determinant of physiology and condition. Here, we combine laboratory and field experiments to examine the effects of landscape context on the gut bacterial community and body condition of predatory insects. Under laboratory conditions, we f...
Macro optical projection tomography for large scale 3D imaging of plant structures and gene activity
Optical projection tomography (OPT) is a well-established method for visualising gene activity in plants and animals. However, a limitation of conventional OPT is that the specimen upper size limit precludes its application to larger structures. To address this problem we constructed a macro version called Macro OPT (M-OPT). We apply M-OPT to 3D live imaging of gene activity in growing whole pl...
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
introduction: cutaneous leishmaniasis is a parasitological disease that is spread in many tropical and subtropical areas in world. this disease transmitted by female sand flies. it is clear that knowledge on sand flies ecology has the main role to planning of control of cl. this study was carried out for determination of cl vectors, in ghanavat district in qom province during 2012. material and...
the organization of gall on the ovary ofsesamum indicum l induced by the gall midge, asphondylia sesami felt, not only affects biochemical equilibrium of the host but also causes disturbed vegetative growth and reduced seed-setting. the toxicity created by the gall maker induces the re-orientation of vasculature cecidogenetic stimuli lead to excessive hypertrophy and hyperplasy forming the gall...
the aphid species, cinara pini (linnaeus, 1758) reported in our previous work as a new aphid on pinus trees for iran, was described using the classic method and through analysis of coi gene sequence. in the next step, we addressed the efficiency of the entomopathogenic fungus, lecanicillium longisporum (zimm.) zare and gams strain lrc 190, on the aphid. the fungus was administered to the second...
zoonotic cutaneous leishmaniasis (zcl) is an increasing and important public health problem in iran. the use of repellents is recommended as one of the important means of personal protection against vectors of zcl. this paper reports the repellency effect of the plant myrtle, myrtus communis (myrtaceae), essential oil for protection against 3-7-day-old unfed females of the sandfly, phlebotomus ...
Insects can navigate in cluttered spaces and perform challenging functions such as pollination collective object transport. By exploiting scaling laws bioinspired designs, insect-scale micro-aerial-vehicles (MAVs) have demonstrated impressive flight capabilities in-flight collision resilience acrobatic maneuvers. However, existing subgram MAVs are difficult to design, construct, repair. Coupled...
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