نتایج جستجو برای: biological competition

تعداد نتایج: 545385  

2016
Julie Baniszewski Emma N. I. Weeks James P. Cuda

The hydrilla tip mining midge, Cricotopus lebetis Sublette (Diptera: Chironomidae), is a biological control agent of the invasive aquatic weed hydrilla, Hydrilla verticillata (L.f.) Royle (Hydrocharitaceae). Mass rearing of the midge for augmentative releases can be compromised by competition from the adventive hydrilla leafcutter moth, Parapoynx diminutalis Snellen (Lepidoptera: Crambidae). Th...

In this paper, we study an outsourced supply chain consisting of one buyer and two suppliers in which the buyer outsources manufacturing of a physical product to two competing suppliers. The suppliers compete for the buyers' demands share, and the buyer allocates the demands to the competing suppliers based on three-dimensional allocation functions. We consider two certain types of allocation f...

Journal: :Genetics 2013
Clement Y Chow Mariana F Wolfner Andrew G Clark

Sperm competition arises as a result of complex interactions among male and female factors. While the roles of some male factors are known, little is known of the molecules or mechanisms that underlie the female contribution to sperm competition. The genetic tools available for Drosophila allow us to identify, in an unbiased manner, candidate female genes that are critical for mediating sperm c...

Journal: :Human nature 2006
Aaron T Goetz Todd K Shackelford

Rape of women by men might be generated either by a specialized rape adaptation or as a by-product of other psychological adaptations. Although increasing number of sexual partners is a proposed benefit of rape according to the "rape as an adaptation" and the "rape as a by-product" hypotheses, neither hypothesis addresses directly why some men rape their long-term partners, to whom they already...

Journal: :The American naturalist 2007
Erin Cameron Troy Day Locke Rowe

We present a model of sperm competition that incorporates both sperm and nonsperm parts of the ejaculate. Our primary focus is on determining how ejaculate composition and size evolves as a function of the effects of seminal fluid on male reproductive success and as a function of asymmetry in sperm usage by females. The model predicts that different patterns of investment in sperm and seminal p...

Journal: :Remote Sensing 2014
Weicheng Wu

A large number of vegetation indices have been developed and widely applied in terrestrial ecosystem research in the recent decades. However, a certain limitation was observed while applying these indices in research in dry areas due to their low sensitivity to low vegetation cover. In this context, the objectives of this study are to develop a new vegetation index, namely, the Generalized Diff...

2009

The first comprehensive town planning legislation in Australia was enacted by the Western Australian Parliament in 1929. This followed a number of events in Australia to showcase the benefits of town planning, from 1914, onwards. They included an Australasian town planning tour by Charles Reade on behalf of the Garden Cities and Town Planning Association of Great Britain, in 1914 -1915, after w...

Journal: :IOP conference series 2021

In today's market economy, quality management at the enterprise is one of priority tasks. High competition in encourages firms to develop new systems improve and increase competitiveness product. The development these requires clear criteria for evaluating their effectiveness. Quality standards agriculture are especially important because this industry determines economic biological security co...

2009
Haitham A. Haloush

Until the year 2000, there was no specific statute enacted in Jordan that regulates unfair competition. In the year 2000, the Jordanian Unfair Competition Law No. 15 of 2000 was enacted. The Law deals with the issue of unfair competition in a very generic way. In addition to the Jordanian Unfair Competition Law, the principal statutory source of protection is implemented through the general rul...

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