نتایج جستجو برای: s delta function

تعداد نتایج: 1874531  

It is generally believed that, on slender delta wings, there is a critical state at which strong asymmetric vortices are found along the leading edge on the lee-side of the delta wing. These asymmetric vortices can lead to high lateral forces even when slender delta wing is at the zero angle of yaw. Some experimental studies reported recently, cast considerable doubt as to the validity of the a...

Journal: :Nucleic acids research 1998
H T Allawi J SantaLucia

Thermodynamics of 23 oligonucleotides with internal single C.T mismatches were obtained by measuring UV absorbance as a function of temperature. Results from these 23 duplexes were combined with three measurements from the literature to derive nearest-neighbor thermodynamic parameters for seven linearly independent trimer sequences with internal C.T mismatches. The data show that the nearest-ne...

Journal: :American journal of physiology. Heart and circulatory physiology 2007
Virginia H Huxley Jian Jie Wang Ingrid H Sarelius

Studies of physical performance and energy metabolism during and following exercise have shown significant sex-specific musculoskeletal adaptations; less is known of vascular adaptations, particularly with respect to exchange capacity. In response to adenosine (ADO), a metabolite produced during exercise, permeability (P(s)) of coronary arterioles from female pigs changed acutely; the magnitude...

Journal: :Arquivos brasileiros de cardiologia 2009
Vitor E Valenti Celso Ferreira Adriano Meneghini Marcelo Ferreira Neif Murad Celso Ferreira Filho João Antônio Correa Luiz Carlos de Abreu Eduardo Colombari

BACKGROUND The literature describes contradictory data regarding the onset of the baroreflex reduction in spontaneously hypertensive rats. OBJECTIVE This investigation was undertaken to evaluate the baroreflex function in 13-week-old spontaneously hypertensive rats. METHODS Male Wistar Kyoto (n=15) and spontaneously hypertensive rats (n=15) aged 13 weeks were studied. Cannulas were inserted...

Journal: :The European respiratory journal 2000
D Navajas J Alcaraz R Peslin J Roca R Farré

Noninvasive assessment of respiratory resistance (Rrs) and elastance (Ers), which is not easy with conventional methods, could be useful in the optimization of pressure support ventilation. The aim of this study was to evaluate a simple noninvasive method (Delta-inst) of measuring Rrs during nasal pressure support ventilation. Rrs and Ers (Delta-inst) were computed from inspiratory mask pressur...

Journal: :Biochemistry 1993
D P Mascotti T M Lohman

We have examined the thermodynamics of binding of a series of oligolysines (net charge z = +2 to +10) containing one, two, or three tryptophans to several single-stranded (ss) homo-polynucleotides [poly(A), poly(C), poly(I), poly(dU), poly(dT)] and duplex (ds) DNA in order to investigate the effects of peptide charge, tryptophan content, and polynucleotide base and sugar type. Equilibrium assoc...

Journal: :Infection and immunity 1979
W H Turner D J Pickard

Delta-hemolysin of coagulase-negative staphylococcal strains was immunologically identical to delta-hemolysin of Staphylococcus aureus (Newman) but distinct from delta-hemolysin from a canine strain of S. aureus.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کردستان - دانشکده علوم پایه 1394

فرض کنید$r$ حلقه ای یکدار،$delta$‎ یک مشتق و $sigma$‎ یک خودریختی ‎ باشد. در این پایان نامه مفاهیم اساسی حلقه های اول، ‎$ delta $-‎اول، ‎$ sigma $-‎اول، مشتق متعامد و مشتق تعمیم یافته متعامد را معرفی می کنیم. شرایطی لازم و کافی روی ‎$ r $‎ ارائه می دهیم به طوری که حلقه های چند جمله ای اریب ‎$ r[x,x^{-1};sigma] $‎، ‎$ r[x;sigma] $‎ و ‎$ r[x;delta] $‎ اول یا نیمه اول باشند. همچنین، نتایجی مربوط ...

Journal: :Science China-mathematics 2022

This paper deals with the following Petrovsky equation damping and nonlinear sources: $${u_{tt}} + {\Delta ^2}u - M\left({\left\| {\nabla u} \right\|_2^2} \right)\Delta u \Delta {u_t} {\left| {{u_t}} \right|^{m(x) 2}}{u_t} = \right|^{p(x) 2}}u$$ under initial-boundary value conditions, where M(s) a bsγ is positive C1 function parameters > 0, b γ ⩾ 1, m(x) p(x) are given measurable functions. Th...

2010
Kaveh Madani Jay R. Lund

California’’s Sacramento-San Joaquin Delta is the major hub of California’’s water supply system and is central to the ecosystem of many native threatened and endangered species. Conflicts over the Delta have evolved over more than a century. This paper traces changes in this conflict in game theoretic terms, with its implications for the region’’s physical and ecological decline and governance...

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