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12 results on '"Le Thi Ngoc Quynh"'

1. Genome-Wide Analysis of GATA Transcription Factor Family in Quinoa (Chenopodium quinoa): Identification, Characterization, and Expression Profiles.

Author

Thi Man Le, Hong Viet La, Ha Duc Chu, Chau Thuy Pham, Quyen Thi Ha, Le Thi Ngoc Quynh, Tran Thi Thanh Huyen, Tran Van Tien, Dong Huy Gioi, Minh Hong Pham, Vinh Thanh Tran, Thi Bich Ngoc Chu, and Phi Bang Cao

Subjects
GATA proteins, TRANSCRIPTION factors, GENE expression, GENE expression profiling, QUINOA, PLANT growth
Abstract

GATA-binding factor (GATA) proteins are the transcription factor (TF) family that are commonly involved in plant growth and development. The GATA TF family has been successfully identified and characterized for various higher plant species, but there is little research on the GATA TF family in quinoa (Chenopodium quinoa). In this present study, a total of 32 CqGATA genes were identified and analyzed in the quinoa genome. While the general features of the CqGATA TFs in quinoa were slightly variable, the majority of genes encoding the CqGATA TFs contained two and three exons. Our phylogenetic analysis demonstrated that the CqGATA TFs could be classified into four different groups. Gene expression analysis indicated that the expression profiles of the CqGATA genes varied in different tissues. Overall, our study could provide a reference for further functional characterization of the CqGATA genes in quinoa. [ABSTRACT FROM AUTHOR]

Published
2024
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2. GREEN SUPPLIER ASSESSMENT USING A FUZZY MULTI-CRITERIA DECISION-MAKING APPROACH

Author

Nguyen Thi Hue, Le Thi Ngoc Quynh, Nguyen Thi Hue, and Le Thi Ngoc Quynh

Abstract

This study presents a fuzzy multi-criteria decision making (MCDM) approach to support the evaluation of green suppliers. The method utilizes linguistic terms represented by triangular fuzzy numbers to assess the ratings of different green suppliers based on various criteria, as well as to determine the weights assigned to each criterion. The arithmetic of fuzzy numbers is employed to derive a weighted fuzzy decision matrix. In order to simplify and enhance practicality, the weighted ratings are converted into crisp values using the widely-used centroid index ranking approach. The proposed fuzzy MCDM method is then applied to a green supplier assessment problem, showcasing its effectiveness and computational process. Keywords: Green Supplier Assessment, MCDM, Fuzzy Numbers, TOPSIS.

Published
2023

3. Identification of Two Enzymes for Trehalose Synthesis and Their Potential Function in Growth and Development in Peanut (Arachis hypogaea).

Author

Ha Duc Chu, Tran Thi Hai Yen, Chau Thuy Pham, Le Thi Ngoc Quynh, Tran Thi Thanh Huyen, Nguyen Quoc Trung, Dong Huy Gioi, Phi Bang Cao, and Tran Van Tien

Subjects
TREHALOSE, PEANUTS, ARACHIS, GENE expression, GENE families, PLANT enzymes, CHROMOSOME duplication
Abstract

Plant trehalose has been regarded to play a key role in various biological processes during the growth and development stages. Trehalose-6-phosphate synthase (TPS) and trehalose-6-phosphate phosphatase (TPP) are two important enzymes for the synthesis of plant trehalose. Up till now, the TPS and TPP gene families have been identified and characterized in numerous higher plant species, but are rarely recorded in peanuts (Arachis hypogaea). In this study, a comprehensive search was performed to identify all putative TPS and TPP proteins in the peanut genome using Arabidopsis TPS and TPP proteins as queries. We then analyzed the characteristics of TPS and TPP members, including physic-chemical parameters, subcellular localization, phylogeny relationships, gene duplication, and expression patterns by various computational tools. As a result, a total of 17 ArahyTPS and 15 ArahyTPP genes were identified and annotated in the peanut genome, which was expanded by segmental duplication events. Our Neighbor-Joining based phylogenetic tree indicated that the ArahyTPS and ArahyTPP proteins could be categorized into three and two major branches. Gene structures and protein features analysis exhibited that the ArahyTPS and ArahyTPP proteins shared high structural and functional similarities. Based on previous RNA-Seq datasets, a majority of the ArahyTPS and ArahyTPP genes were found to specifically express in at least one major organ/tissue during the growth and development. This work will not only lead to a solid foundation on reveal the potential roles of ArahyTPS and ArahyTPP gene families in peanuts but also provide evidence to related trehalose research in other higher plant species. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Some New Ordered Semi-linear Spaces of Intuitionistic Fuzzy Processes and the Pair of Closely Related States

Author

Nguyen Nhut Hung, Nguyen Dinh Phu, and Le Thi Ngoc Quynh

Subjects
Mathematics::Logic, Pure mathematics, TheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGES, Ideal (set theory), Transformation (function), Mathematics::General Mathematics, Differential equation, Computer Science::Logic in Computer Science, Intuitionistic fuzzy, Mathematics
Abstract

In this paper by classification in the ordering of intuitionistic fuzzy functions, we have some new ordered semi-linear spaces of intuitionistic fuzzy processes \(L^{*}\). Modeling the intuitionistic fuzzy differential equations will be the ideal model to represent the transformation of the pair of closely related states. For the applications, we have considered the model that describes the pair of states are closely related, for example, the oriental philosophy and economic competitiveness models.

Published
2020
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7. Analysing intraday implied volatility for pricing currency options

Author

Hoque, Ariful, Gasbarro, Domenico, Hassan, Kamrul, Le, Thi Ngoc Quynh, Hoque, Ariful, Gasbarro, Domenico, Hassan, Kamrul, and Le, Thi Ngoc Quynh

Abstract

This research analyses the intraday implied volatility (IV) for pricing currency options. It conducts analyses in three steps. First, estimates at-the-money IV using the price of options with one-month, two-month, and three-month maturity during the opening, midday, and closing period of a trading day. Second, the Mincer-Zarnowitz regression test assessing the performance of IV to forecast the volatility of the underlying currency of options for the within-week, one-week, and one-month forecast horizon. Third, mean absolute error (MAE), mean squared error (MSE), and root mean squared error (RMSE) measures evaluating the performance of IV to estimate the price of currency options for the within-week, one-week, and one-month estimate horizon. It employs Australian dollar, British pound, Canadian dollar, Euro, and Swiss franc options trading from 01 January 2010 to 31 December 2017. This study reveals four critical findings. First, three-month maturity IV does not contain useful information about future volatility of the underlying currency and pricing currency options. Second, IV incorporates all information is not relevant to compute the price of currency options for less than a week estimate horizon. Third, IV of the closing period on Monday or Tuesday subsumes most of the essential information compared to other periods of a trading day and other days of a week to forecast volatility of the underlying currency and estimate the value of currency options. Fourth, the shorter (longer) maturity IV holds vital information to price currency options for the shorter (longer) estimate horizon. The overall research findings imply that the information content embedded in one-month and two-month maturity IV is appropriate to calculate the currency options price for the one-week and one-month estimate horizon, respectively. The intraday IV approach adds a new dimension to obtain the unobservable volatility in pricing currency options accurately for the researchers and practition

Published
2020

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