Determinants Influencing Housing-Option Decision of Gen Y: The Case of Vietnam

Ha Thu LUONG(Ha Thu LUONG ),Dung Manh TRAN(Dung Manh TRAN ),Dan Linh Ngoc NGUYEN(Dan Linh Ngoc NGUYEN ),Van Bao NGUYEN(Van Bao NGUYEN ),Anh Thuc LE(Anh Thuc LE ),Hieu Van PHAM(Hieu Van PHAM ) 한국유통과학회 2023 유통과학연구 Vol.21 No.7

Polyphenolic Contents and the Effects of Methanol Extracts from Mango Varieties on Breast Cancer Cells

Van Le Thu Hoang,Jean-Thomas Pierson,Merril Carmel Curry,Paul Nicholas Shaw,Ralf Georg Dietzgen,Michael John Gidley,Sarah Jane Roberts-Thomson,Gregory Raymond Monteith 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.1

Bioactivities of peel and flesh extracts of 3 genetically diverse mango (Mangifera indica L.) varieties were studied. Nam Doc Mai peel extracts, containing the largest amounts of polyphenols, were associated with an effect on MCF-7 viable cell numbers with an IC50 (dose required for 50% inhibition of cell viability) of 56 μg/mL and significantly (p<0.01) induced cell death in MDA-MB- 231 cells, compared with other varieties. Hydrophilic fractions of Nam Doc Mai peel extracts had the highest bioactivity values against both MCF-7 and MDA-MB-231 cells. Soluble polyphenols were present in the largest amounts in most hydrophilic fractions. The Nam Doc Mai mango variety contains high levels of fruit peel bioactivity, which appears to be related to the nature of the polyphenol composition.

Discovery of cycloartane-<i>type</i> triterpene saponins from <i>Mussaenda glabra</i>

Thu, Vu Kim,Bach, Nguyen Xuan,Anh, Luu The,Trang, Do Thi,Nhiem, Nguyen Xuan,Tai, Bui Huu,Van Kiem, Phan,Van Minh, Chau,Park, SeonJu,Seo, Yohan,Namkung, Wan,Kim, Seung Hyun Elsevier 2019 PHYTOCHEMISTRY LETTERS Vol.33 No.-

<P><B>Abstract</B></P> <P>Five new cycloartane saponins, mussaglaosides A–E (<B>1</B>–<B>5</B>) together with five known saponins, mussaendoside O, mussaendoside, G mussaendoside U, mussaendoside P, and mussaendoside Q (<B>6</B>–<B>10</B>) were isolated from the leaves of <I>Mussaenda glabra.</I> Their structures were determined on the basis of extensive spectroscopic methods, including 1D-, 2D-NMR, and MS data. All compounds were evaluated for ANO1 inhibitory activity using calcium-activated chloride channel and YFP expressing HT29 cells. Among the tested compounds, compound <B>6</B> strongly inhibited chloride channel activity with IC<SUB>50</SUB> value of 22.0 ± 1.7 μM without any cytotoxicity.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Five new cycloartane saponins, mussaglaosides A–E (<B>1</B>–<B>5</B>) were isolated from <I>Mussaenda glabra</I>. </LI> <LI> The structures were successfully determined by spectroscopic evidence. </LI> <LI> Compound <B>6</B> strongly inhibited chloride channel activity (IC<SUB>50</SUB> value of 22.0 ± 1.7 μM). </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Anti-inflammatory compounds from Ampelopsis cantoniensis.

Van Thu, Nguyen,Cuong, To Dao,Hung, Tran Manh,Van Luong, Hoang,Woo, Mi Hee,Choi, Jae Su,Lee, Jeong-Hyung,Kim, Jeong Ah,Min, Byung Sun Natural Product Communications 2015 Natural product communications Vol.10 No.3

<P>Many natural products have been shown to have an inhibitory effect on nitric oxide (NO), and are used as chemotherapy agents for inflammation disease. The current study was designed to evaluate the anti-inflammatory activity of chemical components from the leaves of Ampelopsis cantoniensis. Sixteen compounds (1-16) were isolated and identified. Phloretin (5) and 5,7,3',5'-tetrahydroxyflavanone (16) inhibited nitric oxide (NO) production with IC50 values of 5.2, and 18.5 μM, respectively. The inhibitory effect of compounds 5 and 16 were accompanied by dose-dependent decreases in LPS-induced nitric oxide synthase (iNOS) in RAW 264.7 cells, respectively. This study investigated the significant anti-inflammatory properties of isolated compounds from the leaves of A. cantoniensis for the first time. The findings demonstrate that A. cantoniensis could be used beneficially in the treatment of inflammation disease.</P>

Effect of Urea-Molasses Cake Supplementation of Swamp Buffaloes Fed Rice Straw or Grasses on Rumen Environment, Feed Degradation and Intake

Van Thu, Nguyen,Uden, Peter Asian Australasian Association of Animal Productio 2001 Animal Bioscience Vol.14 No.5

Two experiments were carried out concerning the effects of urea-molasses cake (UMC) and its separate components as supplements on rumen environment, in sacco feed degradability and intake of swamp buffaloes fed rice straw, grasses or a mixture of grasses and rice straw. Experiment 1 was a change-over design with 4 animals and 6 treatments. The buffaloes were fed rice straw ad libitum, and the experimental treatments were: no supplementation (R); 700 g of the complete urea-molasses cake (RUMC); 53.2 g urea (RU); 276 g rice bran and 52.5 coconut meal (RRC); 26.6 g salt, 26.6 g bone meal and 2.1 g trace minerals (RMi); and 25 g molasses (RMo). Experiment 2 was a Latin square design with four diets and four animals. The treatments were: rice straw ad libitum and mixed grass (RG) at 2.5 g dry matter per kg live weight (LW); RG plus 700 g urea-molasses cake (RGUMC); mixed grass ad libitum (G); and G plus 700 g cake (GUMC). In both experiments the supplements were fed once daily. In Exp. 1 although the rumen pH was significantly different (p<0.05) among diets, it varied only from 6.90 to 7.06. The ruminal ammonia was also significantly (p<0.05) different among the diets with RUMC significantly higher than R. Total bacterial and protozoal counts were significantly (p<0.05) higher for the RUMC, RU, RMo and RRC diets. Total feed and rice straw intakes were highest for RUMC (p<0.05) and lowest for the RMi and RMo diets, but in sacco degradability of four different roughages were not significantly different among diets. In Exp. 2, rumen pHs of the diets differed significantly and (p<0.01) ranged from 7.04 - 7.19. Ruminal $NH_3-N$ concentrations (mg/100 ml) were also significantly different (p<0.05), and higher for the RGUMC, G and GUMC diets. The total counts of bacteria and protozoa were significantly (p<0.05) higher for the RGUMC, G and GUMC diets. The total feed intake and roughage intake were significantly (p<0.05) higher for the RGUMC, G and GUMC diets compared to the RG diet. Correspondingly, LW changes also differed among treatments (p=0.06). It was concluded that there were significant increases in rumen $NH_3-N$ concentration, microbial populations and feed intake in the buffaloes by UMC supplementation, whereas the significant difference in in sacco DM degradation was not found by any type of supplementation. There seemed to be a need of a combination of urea, molasses, minerals and other protein nitrogen sources to enhance rice straw intake. Adding grass to the rice straw diet at 0.25% LW (DM) should also be considered to maintain buffalo rumen function and production with UMC supplementation, when rice straw is the main roughage.

HYPERSURFACES OF INFINITE TYPE WITH NULL TANGENTIAL HOLOMORPHIC VECTOR FIELDS

Thu, Ninh Van Korean Mathematical Society 2017 대한수학회지 Vol.54 No.4

In this paper, we introduce the condition (I) (cf. Section 2) and prove that there is no nontrivial tangential holomorphic vector field of a certain hypersurface of infinite type in ${\mathbb{C}}^2$.

Internal Factors Affecting Firm Performance: A Case Study in Vietnam

Van Hau NGUYEN,Thi Thu Cuc NGUYEN,Van Thu NGUYEN,Duc Tai DO 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.5

The higher the firm performance, the more chances enterprises can expand and develop their production, create jobs, and improve the workers’ living quality. The main objective of this study was to measure the internal factors influencing the firm’s performance of food and beverage (F&B) firms listed on the Hanoi Stock Exchange (HNX). Data was collected on 15 F&B firms listed on the HNX from 2015 to 2019 We use mixed research method, both qualitative and quantitative. For the quantitative research method, the supporting tool is Stata13 software. The results via Ordinary Least Squares (OLS) regression method show the impacts of internal factors with the following observed variables: the ratio of short-term debt to total liabilities (CS1) and total assets (S2) have an opposite impact (–) on ROA and ROE; debt-to-total assets ratio (CS2) has an opposite effect (–) on ROA; growth of total assets (G2) of the growth factor positively affects (+) ROA and ROE, the remaining factors do not affect ROA and ROE; and internal factors do not influence ROS. Based on the findings, some recommendations have been proposed to help the F&B firms listed on the Hanoi Stock Exchange improving their firm performance in the future.

Biodiversity and Enzyme Activity of Marine Fungi with 28 New Records from the Tropical Coastal Ecosystems in Vietnam

( Thu Thuy Pham ),( Khuong V. Dinh ),( Van Duy Nguyen ) 한국균학회 2021 Mycobiology Vol.49 No.6

The coastal marine ecosystems of Vietnam are one of the global biodiversity hotspots, but the biodiversity of marine fungi is not well known. To fill this major gap of knowledge, we assessed the genetic diversity (ITS sequence) of 75 fungal strains isolated from 11 surface coastal marine and deeper waters in Nha Trang Bay and Van Phong Bay using a culturedependent approach and 5 OTUs (Operational Taxonomic Units) of fungi in three representative sampling sites using next-generation sequencing. The results from both approaches shared similar fungal taxonomy to the most abundant phylum (Ascomycota), genera (Candida and Aspergillus) and species (Candida blankii) but were different at less common taxa. Culturable fungal strains in this study belong to 3 phyla, 5 subdivisions, 7 classes, 12 orders, 17 families, 22 genera and at least 40 species, of which 29 species have been identified and several species are likely novel. Among identified species, 12 and 28 are new records in global and Vietnamese marine areas, respectively. The analysis of enzyme activity and the checklist of trophic mode and guild assignment provided valuable additional biological information and suggested the ecological function of planktonic fungi in the marine food web. This is the largest dataset of marine fungal biodiversity on morphology, phylogeny and enzyme activity in the tropical coastal ecosystems of Vietnam and Southeast Asia. Biogeographic aspects, ecological factors and human impact may structure mycoplankton communities in such aquatic habitats.

EFFECT OF WORK CRUSHING SUGARCANE ON PREGNANCY AND LACTATION IN CATTLE AND BUFFALOES

van Thu, N.,Pearson, R.A.,Preston, T.R.,Fajersson, P. Asian Australasian Association of Animal Productio 1996 Animal Bioscience Vol.9 No.4

The suitability of female cattle ($Brahman{\times}Holstein$) and buffaloes (Murrah / Jafarabadi) for work on a sugarcane crusher was tested. The animals were fed chopped sugarcane tops and elephant grass supplemented with rice bran and urea-molasses blocks. In experiment 1, six cattle and six buffaloes, (with three animals seven to eight months pregnant at the start of the experiment in each group), worked individually, alternate weeks for 90 minutes a day for 6 d/week. Within the 90 min, cattle did more work than buffaloes (p < 0.05), and non-pregnant animals did more than pregnant animals, but cattle crushed significantly (p < 0.05) more cane per day than buffaloes. During work animals lost weight, but gained the weight back during resting weeks, when fodder intakes were higher. There were no significant differences in live weight change and fodder intakes between pregnant and non-pregnant animals during the six weeks. In experiment 2, four pairs of lactating cows and buffaloes crushed sugarcane for 3 h/d, 6 d/week for three weeks. Work done was higher in cattle than buffaloes, but cane crushed was marginally lower. All animals lost weight during work, particularly in the first week, but gained weight during the week after work. Daily milk yield was lower during the working weeks ($-0.55{\pm}0.15kg$) than in the week before work. Butter fat yield showed no significant change. One buffalo showed ovarian activity and oestrus behaviour during the work. Two cows showed ovarian activity within one month after the work. It was concluded that pregnant and lactating cows and buffaloes can effectively operate a cane crusher, however a temporary reduction in milk yield can be expected in the working period, and ovarian activity may be suppressed.

Triterpenoids from aerial parts of Glochidion eriocarpum.

Thu, Vu Kim,Kiem, Phan Van,Yen, Pham Hai,Nhiem, Nguyen Xuan,Tung, Nguyen Huu,Cuong, Nguyen Xuan,Minh, Chau Van,Huong, Hoang Thanh,Lau, Trinh Van,Thuan, Ngo Thi,Kim, Young Ho Natural Product Communications 2010 Natural product communications Vol.5 No.3

<P>From the aerial parts of Glochidion eriocarpum, a new triterpene, glochieriol (1), three new triterpenoid saponins, glochieriosides C - E (2 - 4), together with four known triterpenes (glochidonol, glochidiol, lupeol, and 3-epi-lupeol) were isolated by using combined chromatographic separations. The structures of the new compounds were elucidated on the basis of spectroscopic data, including FTICR-MS, 1D and 2D NMR.</P>