نتایج جستجو برای: multifunctionality of agriculture
تعداد نتایج: 21170635 فیلتر نتایج به سال:
Pheromones are low molecular weight chemical substances that are produced by a plant or animal and cause a response in another individual of same or another spices. Pheromones can be of many different chemical types, to serve different functions even for survival of the individual. Pheromones are sending out subconscious scent signals to male or female that naturally trigger attraction, arousal...
This paper studies the multifunctionality of dialogue utterances, i.e. the phenomenon that utterances in dialogue often have more than one communicative function. It is argued that this phenomenon can be explained by analyzing the participation in dialogue as involving the performance of several types of activity in parallel, relating to different dimensions of communication. The multifunctiona...
چکیده کنه تارتن دو لکه ای tetranychus urticae koch یکی از چندخوارترین آفات شناخته شده محصولات کشاورزی دنیا به حساب می آید. در این بررسی جمعیت تخم و مراحل فعال این کنه در شرایط آلودگی طبیعی و مصنوعی در برگ های 8 رقم لوبیا در سال 1392 در گلخانه و مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه ارومیه موردمطالعه قرار گرفت. آزمایش به صورت طرح کاملاً تصادفی برای شرایط مزرعه در10 تکرار و برای شرایط گلخانه ای...
Strong trade-offs between agriculture and the environment occur in deforestation frontiers, particularly world's rapidly disappearing tropical subtropical dry forests. Pathways to mitigate these are often unclear, as well how or different policies alter option space of available pathways. Using a spatial optimization framework based on linear programming, we develop landscape-scale possibility ...
The typological literature generally assumes that semantic maps and the underlying conceptual spaces have mental reality, that is, they correspond to a universal arrangement of the relevant conceptual situations in a speaker's mind, based on perceived relations of similarity between these conceptual situations (Croft 2001 and 2003, Haspelmath 2003, among others). Croft (2003) goes far as arguin...
In the review, the nature of protein multifunctionality is analyzed. In the first part of the review the principles of structural/functional organization of protein are discussed. In the second part, the main mechanisms involved in development of multiple functions on a single gene product(s) are analyzed. The last part represents a number of examples showing that multifunctionality is a basic ...
Biodiversity loss is occurring rapidly worldwide, yet it is uncertain whether few or many species are required to sustain ecosystem functioning in the face of environmental change. The importance of biodiversity might be enhanced when multiple ecosystem processes (termed multifunctionality) and environmental contexts are considered, yet no studies have quantified this explicitly to date. We mea...
Previous studies have revealed that HIV-infected individuals possess circulating CD4(+)CD8(+) double-positive (DP) T cells specific for HIV Ags. In the present study, we analyzed the proliferation and functional profile of circulating DP T cells from 30 acutely HIV-infected individuals and 10 chronically HIV-infected viral controllers. The acutely infected group had DP T cells that showed more ...
Global change, especially land-use intensification, affects human well-being by impacting the delivery of multiple ecosystem services (multifunctionality). However, whether biodiversity loss is a major component of global change effects on multifunctionality in real-world ecosystems, as in experimental ones, remains unclear. Therefore, we assessed biodiversity, functional composition and 14 eco...
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