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Elaeocarpus hygrophilus Kurz. is a tropical tree that has recently been used for food and medicinal purposes. This study aimed to reveal the phytochemicals and evaluate the anti-influenza viral and neuroprotective effects of different parts of this plant including leaves, stems, fruit peels, and seeds. The study results indicated that the leaf extract was a potential candidate in the inhibition of the influenza viral replication through anti-neuraminidase receptors and attenuation of the glutamate-induced neuronal cell death and cellular oxidative stress. Using molecular networking as well as fragmentation, twenty-six known compounds were dereplicated from the leaves of E. hygrophilus. Molecular docking simulations of target proteins (PDB: 3CL0 and 4CXT) with these predicted compoun... |
Multifunctional nanocomposites have received great attention for years; electron transfer (ET) is considered as an explanatory mechanism for enhancement of performance of these nanostructures. The existence of this ET process has been proved in many studies using either experimental or computational approaches. In this study, a ternary nanocomposite system of Ag/TiO2/GO was prepared to evaluate the performance enhancement in two experimental models: a physical model (i.e., surface-enhanced Raman scattering (SERS) sensor) and a chemical one (i.e., catalytic reduction reaction). The metal/semiconductor heterojunction between Ag and TiO2, as well as Ti-O-C bonds, has allowed plasmonic hot electrons to be transferred in the internal structure of the material. An investigation on the rol... |
Nanoscale films are integral to all modern electronics. To optimize device performance, researchers vary the film thickness by making batches of devices, which is time-consuming and produces experimental artifacts. Thin films with nanoscale thickness gradients that are rapidly deposited in open air for combinatorial and high-throughput (CHT) studies are presented. Atmospheric pressure spatial atomic layer deposition reactor heads are used to produce spatially varying chemical vapor deposition rates on the order of angstroms per second. ZnO and Al2O3 films are printed with nm-scale thickness gradients in as little as 45 s and CHT analysis of a metal-insulator-metal diode and perovskite solar cell is performed. By testing 360 Pt/Al2O3/Al diodes with 18 different Al2O3 thicknesses on o... |
We present a supermassive black hole (SMBH) mass measurement in the Seyfert 1 galaxy NGC 7469 using Atacama Large Millimeter/submillimeter Array (ALMA) observations of the atomic-[CI](1–0) and molecular-12CO(1–0) emission lines at the spatial resolution o |
Traditionally, students from the Southern world tend to cross their national borders to study abroad. However, in recent times, we have observed a trend in which more and more students, both full-time and short-term, select Southern countries as destinations for overseas education. This paper contributes to the sparse literature on the above phenomenon, examining the case of Vietnam. We surveyed 50 universities and colleges about their international student profiles (including statistics and nationalities) and their strategies for attracting international students. The findings of this study provide implications for Vietnam's policymakers and university/college leaders and other Southern countries when implementing the internationalization of tertiary education. |
Three major scientific policies implemented in 2008, 2014, and 2017 have pushed Vietnam’s social sciences and humanities (SSH) toward higher international standards. This study uses descriptive and Bayesian approaches on a dataset of 1,564 Vietnamese authors in the 2008–18 period to understand the changes under the new policies and the remaining challenges. The findings indicate that Economics is the most productive SSH field, with 858 publications in 11 years. Even though the number of authors has risen rapidly, gender disparity is still an issue. Economics has benefitted the most from Vietnam's development, and to a lesser extent, so have Education and Social Medicine. Future policies should aim to provide an enabling environment for female and early career researchers in every SS... |
Recently, Asia has emerged as a new hub of international students, apart from the traditional hosts such as North America, Europe or Australia. Along with this phenomenon, there has been increasing international education scholars selecting international student mobilities in Asia as objects of research. Nevertheless, there has not yet any systematic knowledge about the existing literature on international student mobilities in Asia-related studies. This project aims to fulfil this void by analyzing data obtained from Scopus dataset from 1984 to 2019. Using descriptive statistics as well as advanced bibliometric analyses, the review identified influential documents, topics, sources whose impact has been sustained for several decades. The review also identified prominent authors and ... |
This study’s aim is to improve the understanding of the dynamical behavior of a multi-core compound droplet traveling in an axisymmetric channel consisting of a diffuser element. The compound droplet typically consisting of two inner droplets distributed one after another is initially located at a certain distance from the entrance of the channel. A front-tracking method is used to handle the movement and deformation of the droplet. The numerical simulation results show that the compound droplet is stretched in the channel, and it takes a certain time, “the transit time”, to pass through the diffuser. The compound droplet has the largest deformation in the diffuser region and tends to return to its nearly original shape after leaving the diffuser. The deformation and transit time of... |
Silver nanowire (AgNW) networks are among the most promising indium-free, flexible transparent electrodes for energy, lighting and heating devices. However, the lack of stability of such networks is a key factor that limits their industrial application. While applications require homogeneous networks, non-homogeneous AgNW networks are intentionally prepared in the present work to probe the mechanisms leading to failure under electrical stress. We show that induced non-homogeneities have a strong impact both on the spatial distribution of temperature (measured by IR imaging) and the current density throughout the electrode (as deduced from modeling). Regions with higher current density under elevated electrical stress are correlated to the origin of degradation. Furthermore, the infl... |
The participation of women in Vietnam's social sciences and humanities research has increased during the last several decades. However, they still face various challenges, such as the 'glass ceiling', social stereotypes, low recognition, and underrepresentation. The open-access (OA) movement, being advocated for connecting science and community and improving scientists' visibility, offers a viable platform to increase participation of female researchers. This research investigated participation of Vietnamese women in 3,122 Social Sciences & Humanities publications during 2008�2019. Results show a rapid increase in female authors during the period, rising from 47.27% to 71.43% of articles having one or more Vietnamese female author. However, the number of women as first authors remai... |
