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Papers by tran dung

Research paper thumbnail of Studies on manufacturing of topical wound dressings based on nanosilver produced by aqueous molecular solution method

Journal of Experimental Nanoscience, 2011

... C): 5–15. 11. Madhumathi, K, Sudheesh Kumar, PT, Abhilash, S, Sreeja, V, Tamura, H, Manzoor, ... more ... C): 5–15. 11. Madhumathi, K, Sudheesh Kumar, PT, Abhilash, S, Sreeja, V, Tamura, H, Manzoor, K, Nair, SV and Jayakumar, R. 2010. ... Med., 21(2): 807–813. [CrossRef], [PubMed]; 12. SudheeshKumar, PT, Abhilash, S, Manzoor, K, Nair, SV, Tamura, H and Jayakumar, R. 2010. ...

Research paper thumbnail of Synthesis of nanosilver particles by reverse micelle method and study of their bactericidal properties

Journal of Physics: Conference Series, 2009

Nanosilver particles have been synthesized by the reverse micelle method, where AgNO3 was used as... more Nanosilver particles have been synthesized by the reverse micelle method, where AgNO3 was used as a silver ions source, NaBH4 and quercetin - as reducing agents, CTAB, SDOSS and AOT- as surfactants, while the stabilizer was Vietnamese chitosan. Studying the factors influencing the process of nanosilver particle formation, it was shown that the particle size of the nanosilver products depends on the concentration of the reaction components and their stoichiometric ratio. It was also shown that the reaction system using AOT surfactant is capable of producing nanosilver particles with smallest nanoparticles (phiav ~ 5 nm) and good particle-size distribution. The study on bactericidal activity of the nanosilver products indicated that the disinfecting solution with a nanosilver concentration of 3 ppm was able to inhibit all E.coli and Coliforms, TPC and fungi at 15 ppm, while Vibrio cholerae cells were inactivated completely with 0.5 ppm of nanosilver after 30 minutes exposition.

Research paper thumbnail of Synthesis of nanosilver particles by reverse micelle method and study of their bactericidal properties

Journal of Physics: Conference Series, 2009

Nanosilver particles have been synthesized by the reverse micelle method, where AgNO 3 was used a... more Nanosilver particles have been synthesized by the reverse micelle method, where AgNO 3 was used as a silver ions source, NaBH 4 and quercetin -as reducing agents, CTAB, SDOSS and AOT-as surfactants, while the stabilizer was Vietnamese chitosan. Studying the factors influencing the process of nanosilver particle formation, it was shown that the particle size of the nanosilver products depends on the concentration of the reaction components and their stoichiometric ratio. It was also shown that the reaction system using AOT surfactant is capable of producing nanosilver particles with smallest nanoparticles (φ av ~ 5 nm) and good particle-size distribution. The study on bactericidal activity of the nanosilver products indicated that the disinfecting solution with a nanosilver concentration of 3 ppm was able to inhibit all E.coli and Coliforms, TPC and fungi at 15 ppm, while Vibrio cholerae cells were inactivated completely with 0.5 ppm of nanosilver after 30 minutes exposition.

Research paper thumbnail of Adjustment costs in labour markets and the distributional effects of trade liberalization: Analytics and calculations for Vietnam

Journal of Policy Modeling, 2005

This paper explores different labour market structures and their implications for trade liberaliz... more This paper explores different labour market structures and their implications for trade liberalization across different sectors and households in the Vietnamese economy using computable general equilibrium (CGE) models. The model is calibrated to a model admissible Vietnamese data set benchmarked to 1997.

Research paper thumbnail of Evaluation of a gamma technique for the assay of radioactive waste drums using two measurements from opposing directions

Applied Radiation and Isotopes, 2009

A technique using two measurements from opposing directions for the assay of the activity of radi... more A technique using two measurements from opposing directions for the assay of the activity of radioactive waste drums, mainly consisting of organic materials, has been studied. A model for the calculation of systematic errors is given by simulating the measurement system. The calculated values are in good agreement with the experimental values. This confirms the validity of the model and proofs the good performance of this technique in practice. These results may provide guidelines for setting up a measuring system for the assay the radwaste drums.

Research paper thumbnail of Modification to technique using two detectors for assay of radioactive waste drum

Annals of Nuclear Energy, 1997

Rb protein (pRb) expression was evaluated in 185 cases of transitional cell carcinoma of the blad... more Rb protein (pRb) expression was evaluated in 185 cases of transitional cell carcinoma of the bladder from patients that underwent radical cystectomy. Tumors were stratified into three categories based on the percentage of nuclei expressing pRb: (a) 0, 0% of tumor cells showing nuclear reactivity; (In \+, 1-50% of tumor cells showing nuclear reactivity; and (c)2+, >50% of tumor cells showing nuclear reactivity. Cases with undetectable (pRb 0) and high (pRb 2+) pRb reactivity had identical rates of recurrence. These cases had significantly higher recurrence (P = 0.0001) and lower survival rates i/' = 0.0002) compared to cases with moderate (pRb 1+ ) pRb reactivity, indicating that high levels of pRb expression may reflect a dysfunctional (altered) Rb pathway. The tumors were also examined for alterations in p53 expression; patients with tumors altered in both p53 and pRb had signifi cantly increased rates of recurrence (P < 0.0001) and survival (P < 0.0001) compared to patients with no alterations in either p53 or pRb; patients with alterations in only one of these proteins had intermediate rates of recurrence and survival. These results suggest that: (a) bladder cancers with high pRb expression do not show the tumor suppressor effects of the protein; and (In alteration in both p53 and pRb may act in cooperative or synergistic ways to promote tumor progression.

Research paper thumbnail of New measuring technique for assay of radioactive materials in waste drums

Progress in Nuclear Energy, 1998

... Tran Quoc Dung. ... Until now, this problem has not been solved although some techniques were... more ... Tran Quoc Dung. ... Until now, this problem has not been solved although some techniques were proposed to detect and correct inhomogenity in 403 404 TQ Dung the radioactive distribution (Cesana et al, 1993; Gillespie, 1994; Levai et al, 1995). ...

Research paper thumbnail of Calculation of the systematic error and correction factors in gamma waste assay system

Annals of Nuclear Energy, 1997

Ann. Nucl. Energy, Vol. 24, No. 1, pp. 3347, 1997 PBrgatnon Copyright 1996 Elsevier Science Ltd P... more Ann. Nucl. Energy, Vol. 24, No. 1, pp. 3347, 1997 PBrgatnon Copyright 1996 Elsevier Science Ltd PII: S03064549(96)00059X Printed in Great Britain. All rights reserved 03064549 97 15.00 + 0.00 CALCULATION OF THE SYSTEMATIC ERROR AND CORRECTION FACTORS IN ...

Research paper thumbnail of From Freedom to Bondage: The Jamaican Maroons, 1655-1770

The Jamaican Maroons were not a small rebel community, instead they were a complex polity that op... more The Jamaican Maroons were not a small rebel community, instead they were a complex polity that operated as such from 1655-1770. They created a favorable trade balance with Jamaica and the British. They created a network of villages that supported the growth of their collective identity through borrowed culture from Africa and Europe and through created culture unique to Maroons. They were self-sufficient and practiced sustainable agricultural practices.

Research paper thumbnail of Studies on manufacturing of topical wound dressings based on nanosilver produced by aqueous molecular solution method

Journal of Experimental Nanoscience, 2011

... C): 5–15. 11. Madhumathi, K, Sudheesh Kumar, PT, Abhilash, S, Sreeja, V, Tamura, H, Manzoor, ... more ... C): 5–15. 11. Madhumathi, K, Sudheesh Kumar, PT, Abhilash, S, Sreeja, V, Tamura, H, Manzoor, K, Nair, SV and Jayakumar, R. 2010. ... Med., 21(2): 807–813. [CrossRef], [PubMed]; 12. SudheeshKumar, PT, Abhilash, S, Manzoor, K, Nair, SV, Tamura, H and Jayakumar, R. 2010. ...

Research paper thumbnail of Synthesis of nanosilver particles by reverse micelle method and study of their bactericidal properties

Journal of Physics: Conference Series, 2009

Nanosilver particles have been synthesized by the reverse micelle method, where AgNO3 was used as... more Nanosilver particles have been synthesized by the reverse micelle method, where AgNO3 was used as a silver ions source, NaBH4 and quercetin - as reducing agents, CTAB, SDOSS and AOT- as surfactants, while the stabilizer was Vietnamese chitosan. Studying the factors influencing the process of nanosilver particle formation, it was shown that the particle size of the nanosilver products depends on the concentration of the reaction components and their stoichiometric ratio. It was also shown that the reaction system using AOT surfactant is capable of producing nanosilver particles with smallest nanoparticles (phiav ~ 5 nm) and good particle-size distribution. The study on bactericidal activity of the nanosilver products indicated that the disinfecting solution with a nanosilver concentration of 3 ppm was able to inhibit all E.coli and Coliforms, TPC and fungi at 15 ppm, while Vibrio cholerae cells were inactivated completely with 0.5 ppm of nanosilver after 30 minutes exposition.

Research paper thumbnail of Synthesis of nanosilver particles by reverse micelle method and study of their bactericidal properties

Journal of Physics: Conference Series, 2009

Nanosilver particles have been synthesized by the reverse micelle method, where AgNO 3 was used a... more Nanosilver particles have been synthesized by the reverse micelle method, where AgNO 3 was used as a silver ions source, NaBH 4 and quercetin -as reducing agents, CTAB, SDOSS and AOT-as surfactants, while the stabilizer was Vietnamese chitosan. Studying the factors influencing the process of nanosilver particle formation, it was shown that the particle size of the nanosilver products depends on the concentration of the reaction components and their stoichiometric ratio. It was also shown that the reaction system using AOT surfactant is capable of producing nanosilver particles with smallest nanoparticles (φ av ~ 5 nm) and good particle-size distribution. The study on bactericidal activity of the nanosilver products indicated that the disinfecting solution with a nanosilver concentration of 3 ppm was able to inhibit all E.coli and Coliforms, TPC and fungi at 15 ppm, while Vibrio cholerae cells were inactivated completely with 0.5 ppm of nanosilver after 30 minutes exposition.

Research paper thumbnail of Adjustment costs in labour markets and the distributional effects of trade liberalization: Analytics and calculations for Vietnam

Journal of Policy Modeling, 2005

This paper explores different labour market structures and their implications for trade liberaliz... more This paper explores different labour market structures and their implications for trade liberalization across different sectors and households in the Vietnamese economy using computable general equilibrium (CGE) models. The model is calibrated to a model admissible Vietnamese data set benchmarked to 1997.

Research paper thumbnail of Evaluation of a gamma technique for the assay of radioactive waste drums using two measurements from opposing directions

Applied Radiation and Isotopes, 2009

A technique using two measurements from opposing directions for the assay of the activity of radi... more A technique using two measurements from opposing directions for the assay of the activity of radioactive waste drums, mainly consisting of organic materials, has been studied. A model for the calculation of systematic errors is given by simulating the measurement system. The calculated values are in good agreement with the experimental values. This confirms the validity of the model and proofs the good performance of this technique in practice. These results may provide guidelines for setting up a measuring system for the assay the radwaste drums.

Research paper thumbnail of Modification to technique using two detectors for assay of radioactive waste drum

Annals of Nuclear Energy, 1997

Rb protein (pRb) expression was evaluated in 185 cases of transitional cell carcinoma of the blad... more Rb protein (pRb) expression was evaluated in 185 cases of transitional cell carcinoma of the bladder from patients that underwent radical cystectomy. Tumors were stratified into three categories based on the percentage of nuclei expressing pRb: (a) 0, 0% of tumor cells showing nuclear reactivity; (In \+, 1-50% of tumor cells showing nuclear reactivity; and (c)2+, >50% of tumor cells showing nuclear reactivity. Cases with undetectable (pRb 0) and high (pRb 2+) pRb reactivity had identical rates of recurrence. These cases had significantly higher recurrence (P = 0.0001) and lower survival rates i/' = 0.0002) compared to cases with moderate (pRb 1+ ) pRb reactivity, indicating that high levels of pRb expression may reflect a dysfunctional (altered) Rb pathway. The tumors were also examined for alterations in p53 expression; patients with tumors altered in both p53 and pRb had signifi cantly increased rates of recurrence (P < 0.0001) and survival (P < 0.0001) compared to patients with no alterations in either p53 or pRb; patients with alterations in only one of these proteins had intermediate rates of recurrence and survival. These results suggest that: (a) bladder cancers with high pRb expression do not show the tumor suppressor effects of the protein; and (In alteration in both p53 and pRb may act in cooperative or synergistic ways to promote tumor progression.

Research paper thumbnail of New measuring technique for assay of radioactive materials in waste drums

Progress in Nuclear Energy, 1998

... Tran Quoc Dung. ... Until now, this problem has not been solved although some techniques were... more ... Tran Quoc Dung. ... Until now, this problem has not been solved although some techniques were proposed to detect and correct inhomogenity in 403 404 TQ Dung the radioactive distribution (Cesana et al, 1993; Gillespie, 1994; Levai et al, 1995). ...

Research paper thumbnail of Calculation of the systematic error and correction factors in gamma waste assay system

Annals of Nuclear Energy, 1997

Ann. Nucl. Energy, Vol. 24, No. 1, pp. 3347, 1997 PBrgatnon Copyright 1996 Elsevier Science Ltd P... more Ann. Nucl. Energy, Vol. 24, No. 1, pp. 3347, 1997 PBrgatnon Copyright 1996 Elsevier Science Ltd PII: S03064549(96)00059X Printed in Great Britain. All rights reserved 03064549 97 15.00 + 0.00 CALCULATION OF THE SYSTEMATIC ERROR AND CORRECTION FACTORS IN ...

Research paper thumbnail of From Freedom to Bondage: The Jamaican Maroons, 1655-1770

The Jamaican Maroons were not a small rebel community, instead they were a complex polity that op... more The Jamaican Maroons were not a small rebel community, instead they were a complex polity that operated as such from 1655-1770. They created a favorable trade balance with Jamaica and the British. They created a network of villages that supported the growth of their collective identity through borrowed culture from Africa and Europe and through created culture unique to Maroons. They were self-sufficient and practiced sustainable agricultural practices.