نتایج جستجو برای: intrinsic rate of increase

تعداد نتایج: 21214710  

Journal: :تحقیقات آب و خاک ایران 0
حجت قربانی واقعی حسینعلی بهرامی محمدهادی غفاریان مقرب حسین شهاب فاختک طلیعی طبری

a recognition of appropriate soil erosion control methods along with the use of convenient alternatives in erosion control are necessary for a proper management of natural resources. run off control through polymers is one of the new methods employed in reducing soil erosion. this research was conducted to evaluate the effects of a polymer, called anionic polyacrylamide, on soil infiltarion rat...

Journal: :Cardiovascular research 1970
T Opthof

Jose and Collison published a study on the normal range and the determinants of intrinsic heart rate in man in Cardiovascular Research in 1970 [Jose AD, Collison D. The normal range and determinants of the intrinsic heart rate in man. Cardiovasc Res 1970; 4: 160-167)]. The intrinsic heart rate is the heart rate under complete pharmacological blockade. They showed that (i) the resting heart rate...

The dentate gyrus of hippocampus has long been considered as a focal point for studies on mechanisms responsible for the development of temporal lobe epilepsy (TLE). Change in intrinsic properties of dentate gyrus granule cells (GCs) has been considered as an important factor responsible in temporal lobe seizures. In this study, we evaluated the intrinsic properties of GCs, during acute phase o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده علوم انسانی 1393

learning-oriented assessment seeks to emphasise that a fundamental purpose of assessment should be to promote learning. it mirrors formative assessment and assessment for learning processes. it can be defined as actions undertaken by teachers and / or students, which provide feedback for the improvement of teaching and learning. it also contrasts with equally important measurement-focused appro...

Journal: :گیاه پزشکی 0

the impairment of the reproductive performance of pesticide resistant individuals in pesticide-free environment is the result of fitness costs associated with pesticide resistance, which is often determined by resource allocation from a basic physiological process to the protection against pesticides, favoring survival at the expense of reproduction. in this study, the fecundity life table para...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم انسانی 1389

abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...

Journal: :نامه انجمن حشره شناسی ایران 0
مژگان مردانی طلایی گروه گیاه پزشکی، دانشکده ی علوم کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران. قدیر نوری قنبلانی گروه گیاه پزشکی، دانشکده ی علوم کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران. بهرام ناصری گروه گیاه پزشکی، دانشکده ی علوم کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران. مهدی حسن پور گروه گیاه پزشکی، دانشکده ی علوم کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران. لیلا متقی نیا گروه گیاه پزشکی، دانشکده ی علوم کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران. سیدمظفر منصوری گروه تنوع زیستی، پژوهشگاه علوم و تکنولوژی پیشرفته و علوم محیطی، دانشگاه تحصیلات تکمیلی صنعتی و فناوری پیشرفته، کرمان، ایران.

the effects of four corn hybrids, keynes540, keynes410, ksc260 and ksc400, were investigated on life table parameters of the beet armyworm in a growth chamber that was set at 25 ± 1 ºc, 65 ± 5% rh and 16:8 (l: d) photoperiod. the highest survivorship (lx) of adults were 0.77, 0.70, 0.62 and 0.58 on ksc260, keynes410, keynes540 and ksc400, respectively. the highest age-specific fecundity (mx) of...

Journal: :journal of agricultural science and technology 2015
a. hosseini m. hosseini m. goldani j. karimi h. madadi

reducing nitrogen status of floriculture plants is an effective tactic in pest management by decreasing host plant quality. life table parameters and population growth rate of aphis craccivora(hemiptera: aphidiae), as well as cosmetic and qualitative parameters losses associated with aphid infestation were evaluated in relation to n fertilization levels on gomphrena globosa, under greenhouse co...

Background and Objective: The study aimed to determine the intrinsic motivation of undergraduate nursing students based on their perceived motivational climate.   Materials and Methods: This cross-sectional research was conducted on 165 students, who were selected through simple random sampling. Data collection tools were standard intrinsic motivation and perceived motivational climate (c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده ادبیات و علوم انسانی 1392

abstract: the present study was undertaken to investigate whether 1) there is any significant correlation between iranian efl/eap learners’ l2 writing proficiency and their willingness to communicate, 2) there is any significant difference between efl and eap learners in terms of willingness to communicate, 3) there is any significant difference in wtc of iranian efl/eap learners with 1- nati...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید