نتایج جستجو برای: direct cross
تعداد نتایج: 895387 فیلتر نتایج به سال:
The subject of the strangeness content of the nucleon and nuclei has been one of the important issues in hadron and nuclear physics [1]. Production of φ meson from nucleon target has been suggested as a sensitive probe to study the strangeness content of the nucleon. Because of the ideal mixing with ω, φ meson is nearly a pure ss̄ state and its direct coupling to the nucleon must be suppressed b...
A problem to account for the direct electron-positron annihilation in positron-hydrogen scattering above the positronium formation threshold has been resolved within the time independent formalism. The generalization of the optical theorem is derived for the case when an absorption potential is present in the Hamiltonian. With this theorem the annihilation cross section is fully determined by s...
BACKGROUND The increasing prevalence of colorectal cancer (CRC) in China and the paucity of information about relevant expenditure highlight the necessity of better understanding the financial burden and effect of CRC diagnosis and treatment. We performed a survey to quantify the direct medical and non-medical expenditure as well as the resulting financial burden of CRC patients in China. MET...
the genetics and mechanism of malathion resistance in the adults of an. stephensi (ban-s), was studied. nine successive generations of malathion selection in the adults resulted in an increase in ltso of about 3-fold. the crossing experiments indicated that the resistance is inherited as partially dominant character with no indication of sex linkage. the results of back-crosses suggested that p...
In this study, an articulatory characterization of the palatal lateral is provided, using MRI images of the vocal tract acquired during the production of /L/ by several speakers of European Portuguese. The production of this sound involves: a complete linguo-alveolopalatal closure; inward lateral compression of the tongue and a convex shape of the posterior tongue body, allowing airflow around ...
Among magnetoelectric (ME) heterostructures, ME laminates of the type Metglas-like/PVDF (magnetostrictive+piezoelectric constituents) have shown the highest induced ME voltages, usually detected at the magnetoelastic resonance of the magnetostrictive constituent. This ME coupling happens because of the high cross-correlation coupling between magnetostrictive and piezoelectric material, and is u...
We study an extension of the MSSM with a singlet S with coupling SH1H2 in order to solve the μ problem as in the NMSSM, and right-handed neutrinos N with couplings SNN in order to generate dynamically electroweak-scale Majorana masses. We show how in this model a purely right-handed sneutrino can be a viable candidate for cold dark matter in the Universe. Through the direct coupling to the sing...
Objective: Workload is a multidimensional and complex concept that determines the nurse's performance quality of care. In this study; it was aimed to determine how workload nurses working in internal surgical clinics A1 training research hospitals distributed between direct care indirect practices, much time allocated which practices form basis for relevant clinical nurse employment according o...
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