oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 7 )

2018 ( 53 )

2017 ( 46 )

2016 ( 57 )

Custom range...

Search Results: 1 - 10 of 5430 matches for " Nguyen Thi Dung "
All listed articles are free for downloading (OA Articles)
Page 1 /5430
Display every page Item
Seroprevalence of Mycoplasma bovis Infection in Dairy Cows in Ho Chi Minh, Vietnam  [PDF]
Dung Van Nguyen, Chau Kim Thi Truong
Open Journal of Veterinary Medicine (OJVM) , 2015, DOI: 10.4236/ojvm.2015.55016
Abstract: A cross-sectional study was carried out to investigate the seroprevalence of M. bovis. A total of 606 serum samples were randomly collected from dairy cows in Ho Chi Minh City, Vietnam. Commercial ELISA kit was used for detection of antibody to M. bovis. The results indicated that overall seroprevalence was 80.2% (486/606). There were no significant differences between regions or age categories (P > 0.05). Degree of infection to M. bovis commonly distributed at positive degree 1 (68.5%) and 2 (24.1%). Seroprevalence at highest positive degree 4 were found in District 9, District 12 and Thu Duc (6.7%, 6.3% and 1.6%, respectively). This study is the first report of seroprevalence of M. bovis in Vietnam. The results suggested that M. bovis was spreading among dairy cow populations although degree of positivity was low. It should be considered as a high risk pathogen to dairy cows in Vietnam.
Double Koszul Complex and Construction of Irreducible Representations of $\frak{gl}(3|1)$
Nguyen Thi Phuong Dung
Mathematics , 2010,
Abstract: The aim of this work is to give a combinatorial way to describe all irreducible representations in case the super-dimension of $V$ is $(3|1)$.
Gr{?}bner basis. a "pseudo-polynomial" algorithm for computing the Frobenius number
Marcel Morales,Dung Nguyen Thi
Mathematics , 2015,
Abstract: Let consider $n$ natural numbers $a\_1 ,\ldots , a\_{n} $. Let $S$ be the numerical semigroup generated by $a\_1 ,\ldots , a\_{n} $. Set $A=K[t^{a\_1}, \ldots , t^{a\_n}]=K[{x\_1}, \ldots , {x\_n}]/I$. The aim of this paper is: \begin{enumerate}\item Give an effective pseudo-polynomial algorithm on $a\_1$, which computes The Ap{\'e}ry set and the Frobenius number of $S$. As a consequence it also solves in pseudo-polynomial time the integer knapsack problem : given a natural integer b, b belongs to $S$?\item The \gbb of $I$ for the reverse lexicographic order to $x\_n,\ldots ,x\_1$, without using Buchberger's algorithm. \item $\ini{I} $ for the reverse lexicographic order to $x\_n,\ldots ,x\_1$.\item $A$ as a $K[t^{ a\_1 }]$-module. \end{enumerate} We dont know the complexity of our algorithm. We need to solve the "multiplicative" integer knapsack problem: Find all positive integer solutions $({k\_1}, \ldots , {k\_n})$ of the inequality $\prod\_{i=2}^n (k\_i+1)\leq a\_1+1$. This algorithm is easily implemented. The implementation of this algorithm "frobenius-number-mm", for $n=17 $, can be downloaded in \hfill\breakhttps://www-fourier.ujf-grenoble.fr/~morales/frobenius-number-mm
Gr?bner basis. A new algorithm for computing the Frobenius number
Marcel Morales,Dung Nguyen Thi
Mathematics , 2015,
Abstract: Let consider $n$ natural numbers $a\_1 ,\ldots , a\_{n} $. Set $A=K[t^{a\_1}, \ldots , t^{a\_n}]=K[{x\_1}, \ldots , {x\_n}]/I$. Our aim is to describe explicitly:* The \gbb of $I$ for the reverse lexicographic order to $x\_n,\ldots ,x\_1$, without using Buchberger's algorithm.* $\ini{I} $ for the reverse lexicographic order to $x\_n,\ldots ,x\_1$.* $A$ as a $K[t^{ a\_1 }]$-module.* The Ap{\'e}ry set and the Frobenius number. The implementation of this algorithm "frobenius-number-mm" can be downloaded in \hfill\breakhttps://www-fourier.ujf-grenoble.fr/~morales/frobenius-number-mm
Hilbert series of Segre transform, and Castelnuovo-Mumford regularity
Marcel Morales,Dung Nguyen Thi
Mathematics , 2014,
Abstract: In a recent preprint, Ilse Fischer and Martina Kubitzke, proved the bilinearity of the Segre transform under some restricted hypothesis, motivated by their results we show in this paper the bilinearity of the Segre transform in general. We apply these results to compute the postulation number of a series. Our second application is motivated by the paper of David A. Cox, and Evgeny Materov (2009), where is computed the Castelnuovo-Mumford regularity of the Segre Veronese embedding, we can extend partially their result and compute the Castelnuovo-Mumford regularity of the Segre product of Cohen-Macaulay modules.
Castelnuovo-Mumford Regularity And Segre-Veronese Transform
Marcel Morales,Dung Nguyen Thi
Mathematics , 2014,
Abstract: In this paper we give a nice formula for the Castelnuovo-Mumford regularity of the Segre product of modules, under some suitable hypotheses. This extends recent results of David A. Cox, and Evgeny Materov (2009).
Sequentially Cohen-Macaulay Rees algebras
Naoki Taniguchi,Tran Thi Phuong,Nguyen Thi Dung,Tran Nguyen An
Mathematics , 2014,
Abstract: This paper studies the question of when the Rees algebras associated to arbitrary filtration of ideals are sequentially Cohen-Macaulay. Although this problem has been already investigated by N. T. Cuong, S. Goto and H. L. Truong, their situation is quite a bit of restricted, so we are eager to try the generalization of their results.
Topics on sequentially Cohen-Macaulay modules
Naoki Taniguchi,Tran Thi Phuong,Nguyen Thi Dung,Tran Nguyen An
Mathematics , 2015,
Abstract: In this paper, we study the two different topics related to sequentially Cohen-Macaulay modules. The questions are when the sequentially Cohen-Macaulay property preserve the localization and the module-finite extension of rings.
Accommodating Classroom Activities to EFL Learners’ Multiple Intelligences
Nguyen Thi Dung,Luu Trong Tuan
Mediterranean Journal of Social Sciences , 2011,
Abstract: Gardner’s Multiple Intelligences theory has been among the theories innovating English Language Teaching since the period of the 70s and 80s. In this paper, the literature of Multiple Intelligences theory and its benefits on learners’ learning cognition, motivation, interaction and achievement are reviewed.Besides that, types of language learning activities and classroom activities to accommodate to learners’ Multiple Intelligences are presented.
Photocatalytic degradation of reactive dye RED-3BA in aqueous suspension under UV-visible light
Nguyen Thi Dung,Nguyen Van Khoa,Jean-Marie Herrmann
International Journal of Photoenergy , 2005, DOI: 10.1155/s1110662x05000024
Abstract: The photo-catalytic degradation efficiency of several commercial titania powders (Degussa P-25 and Ishihara Sangyo ST-01) and of TiO2 supported on diatomite were investigated in the degradation of a reactive dye (RED-3BA) under UV-Visible light. The observed rate constant for Degussa P-25 was found to be higher than that achieved by using Ishihara Sangyo ST-01 (kobs=3.3×10−2min−1 for Degussa P-25 and 4×10−4min−1 for Ishihara Sangyo ST-01). This could be related to the amount of basic hydroxyl groups on the surface of TiO2 particles as shown in the IR spectra. TiO2 Degussa P-25 supported on diatomite was prepared by dip-coating method. The photo-catalytic activity of supported TiO2 was twice smaller than TiO2 Degussa P-25 (kp-25=3.3×10−2min−1;kp25/diatomite=1.6×10−2min−1). The higher surface areas of ST-01 and the TiO2/diatomite could not lead to a higher degradation rate and to a higher degree of mineralization but TiO2/diatomite could be separated more promptly and more easily from the solution. The effect of pH was investigated in the range 4–9. Acidic (pH = 4) medium was found to favor the adsorption and degradation rate with P-25 particles.
Page 1 /5430
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.