723 research outputs found
Braid Structure and Raising-Lowering Operator Formalism in Sutherland Model
We algebraically construct the Fock space of the Sutherland model in terms of
the eigenstates of the pseudomomenta as basis vectors. For this purpose, we
derive the raising and lowering operators which increase and decrease
eigenvalues of pseudomomenta. The operators exchanging eigenvalues of two
pseudomomenta have been known. All the eigenstates are systematically produced
by starting from the ground state and multiplying these operators to it.Comment: 11 pages, Latex, no figure
Efficacy of conversion gastrectomy following docetaxel, cisplatin, and S-1 therapy in potentially resectable stage IV gastric cancer
AbstractBackgroundRecent advances in gastric cancer chemotherapy have made macroscopic complete resection possible in some patients with stage IV disease.MethodsWe retrospectively investigated the efficacy of multimodal therapy with combined docetaxel, cisplatin, and S-1 (DCS) and conversion gastrectomy in 57 patients with stage IV gastric cancer.ResultsOf the 57 patients, 15 patients were categorized into potentially resectable case, which is defined as patients with single incurable factor including the upper abdominal para-aortic lymph node metastasis (16a2b1 PAN metastasis) or fewer than three peripheral liver metastases. The other 42 were categorized as initially unresectable. All of patients underwent DCS therapy, and then 34 patients underwent conversion gastrectomy. The 3-year overall survival (OS) rate among the patients who underwent conversion gastrectomy was 50.1% with MST of 29.9 months. They had significantly longer OS than patients who underwent DCS therapy alone (p < 0.01). Univariate analysis among the patents with conversion gastrectomy identified 16a2b1PAN metastasis, peritoneal metastasis, potential resectable case, R0 resection as significant prognostic factors. A 3-year OS in potential resectable cases was 92.9%. Multivariate analysis identified potential resectability as the only independent prognostic factor contributing to OS (HR 0.133, 95%CI 0.024-0. 744, p = 0.021). In contrast, clinical response was selected as the only independent prognostic factor in the subgroup of initially unresectable cases (HR 0.354, 95%CI 0.151-0.783, p = 0.021).ConclusionPatients with potentially resectable disease had a remarkably good prognosis among stage IV gastric cancer patients, and might be ideal candidates for conversion gastrectomy following DCS therapy
Rodrigues Formula for the Nonsymmetric Multivariable Hermite Polynomial
Applying a method developed by Takamura and Takano for the nonsymmetric Jack
polynomial, we present the Rodrigues formula for the nonsymmetric multivariable
Hermite polynomial.Comment: 5 pages, LaTe
Rodrigues Formula for the Nonsymmetric Multivariable Laguerre Polynomial
Extending a method developed by Takamura and Takano, we present the Rodrigues
formula for the nonsymmetric multivariable Laguerre polynomials which form the
orthogonal basis for the -type Calogero model with distinguishable
particles. Our construction makes it possible for the first time to
algebraically generate all the nonsymmetric multivariable Laguerre polynomials
with different parities for each variable.Comment: 6 pages, LaTe
Programa Nacional de Melhoramento do Gir Leiteiro: resultado do Teste de Progênie - 12º Grupo.
bitstream/item/81952/1/Programa-nacional-de-melhoramento-96.pd
Exact Formulas and Simple CP dependence of Neutrino Oscillation Probabilities in Matter with Constant Density
We investigate neutrino oscillations in constant matter within the context of
the standard three neutrino scenario. We derive an exact and simple formula for
the oscillation probability applicable to all channels. In the standard
parametrization, the probability for transition can
be written in the form without any
approximation using CP phase . For
transition, the linear term of is added and the probability can
be written in the form . We give the CP dependences of
the probability for other channels. We show that the probability for each
channel in matter has the same form with respect to as in vacuum. It
means that matter effects just modify the coefficients , , and .
We also give the exact expression of the coefficients for each channel.
Furthermore, we show that our results with respect to CP dependences are
reproduced from the effective mixing angles and the effective CP phase
calculated by Zaglauer and Schwarzer. Through the calculation, a new identity
is obtained by dividing the Naumov-Harrison-Scott identity by the Toshev
identity.Comment: 12 pages, RevTeX4 style, changed title, minor correction
Different fetal-neonatal outcomes in siblings born to a mother with Graves-Basedow disease after total thyroidectomy: a case series
ABSTRACT:INTRODUCTION: We describe three different fetal or neonatal outcomes in
the offspring of a mother who had persistent circulating thyrotropin receptor
antibodies despite having undergone a total thyroidectomy several years before.
CASE PRESENTATION: The three different outcomes were an intrauterine death, a
mild and transient fetal and neonatal hyperthyroidism and a severe fetal and
neonatal hyperthyroidism that required specific therapy.
CONCLUSIONS: The three cases are interesting because of the different outcomes,
the absence of a direct correlation between thyrotropin receptor antibody levels
and clinical signs, and the persistence of thyrotropin receptor antibodies
several years after a total thyroidectomy
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