نتایج جستجو برای: paths
تعداد نتایج: 53279 فیلتر نتایج به سال:
Pyrene functionalized triphenylamine-based dyes TP, TCP and TCCP were synthesized via alternate Heck and Wittig reactions. It was found that they could emit strong green light with high fluorescence yields because the formation of the excimer from a pyrene unit was suppressed completely. Moreover, the nondoped organic light-emitting diodes using TP, TCP and TCCP as the emitters as well as the h...
In this paper, we investigate rotating electro-osmotic (EO) flow over an infinite plate or in a channel formed by two parallel plates. The analysis is based on the Debye-Hückel approximation for charge distributions and the Navier-Stokes equation for a transport electrolyte in the rotating frame. It is shown that, for the single plate, the nondimensional speed of system rotation ω is the singly...
OBJECTIVE To analyze the in vitro force degradation of four different brands of elastomeric chains: American Orthodontics, Morelli, Ormco and TP Orthodontics. METHODS The sample consisted of 80 gray elastomeric chains that were divided into four groups according to their respective manufacturers. Chain stretching was standardized at 21 mm with initial force release ranging from 300 g to 370 g...
In this e-companion we provide proofs for some of the results stated in the manuscript titled: “When promotions meet operations: Cross-selling and its effect on call-center performance”. Specifically, we provide the sample path construction under the TP policy (in §A), and the key steps in the proof of Theorem 3.1 under Condition 1 (in §B). Due to space limitations, the proofs of Theorem 3.1 un...
It is by now well known that symmetries may be broken at high temperature. However, in renormalizable supersymmetric theories any internal symmetry gets always restored. In nonrenormalizable theories the situation is far less simple. We review here some recent work which seems to indicate that renormalizability is not essential for the restoration of internal symmetries in supersymmetry. Based ...
OBJECTIVE We sought to estimate the proportion of women immunized against tetanus while attending prenatal care in the developing countries. METHOD We computed the ratio of the percentage of births to women immunized against tetanus to the percentage of births to women with prenatal care (TP ratio). A TP ratio is lower than 100% if not every woman attending prenatal care is immunized. We used...
Keven & Akins suggest that innate stereotypies like TP/R may participate in the acquisition of tongue control. This commentary examines this claim in the context of speech motor learning and biomechanics, proposing that stereotypies could provide a basis for both swallowing and speech movements, and provides biomechanical simulation results to supplement neurological evidence for similarities b...
Historically, first case of TP was described by Scriba in 1885, though some authors believe that Virchow was the first one to describe this entity. Since TP was predominantly seen in tropics, various terms like tropical pyomyositis, myositis tropicans, and tropical myositis are used, but nowadays this entity is no longer confined only to tropics. Levine in 1971, reported the first case of TP fr...
We study the dynamical behavior of the BTZ(Banados-Teitelboim-Zanelli) black hole with the low-energy string effective action. The perturbation analysis around the BTZ black hole reveals a mixing between the dilaton and other fields. Introducing the new gauge(dilaton gauge), we disentangle this mixing completely and obtain one decoupled dilaton equation. We obtain the decay rate Γ of BTZ balck ...
Global biodiversity continues along a trajectory of decline despite enormous conservation efforts (Rands et al., 2010). This is also true in China, one of the most biodiversity-rich countries in the world (Liu and Raven, 2010; Ministry of Environmental Protection of China, 2010a). To fundamentally change this trajectory, it is essential to understand complex interactions among various forces af...
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