Core procedural skills in the MD curriculum: what students need to learn.

The medical education system in Vietnam is currently undergoing a significant transformation with the support of the Ministry of Education and Training (MOET) and the Ministry of Health (MOH). Alongside this shift, the emergence of new medical schools, including VinUniversity, reflects a growing enrollment trend in undergraduate medical programs (UME). During the curriculum development phase, a crucial gap in core procedural skills among medical graduates surfaced.

Three undescribed phenylbutenoids derivatives from Roxb. rhizomes and their biological activities.

Phenylbutenoids belong to polyphenolic compounds that have demonstrated distinctive biological activities and are primarily characterised in the genus Zingiber (Zingiberaceae) species. From the EtOAc extract of the rhizomes of Roxb., three phenylbutenoid-type compounds, cassudimin B (), cassumunol O (), and cassumunol P (), were isolated, along with five known compounds (-).

Efficient photocatalytic degradation of ciprofloxacin using floating α-NiMoO/mpg-CN/EP under visible light.

Conventional water treatment processes often fail to effectively remove antibacterial drugs, necessitating advanced strategies. This study presents the synthesis of novel floating, visible light-active α-NiMoO/mpg-CN/EP composites for the removal of ciprofloxacin (CFX), a widely used quinolone antibiotic, from water. These composites are easily recoverable, highly stable, and demonstrate excellent reusability.

Singlet oxygen dominant-activation by hollow structural cobalt-based MOF/peroxymonosulfate system for micropollutant removal.

Despite the keen interest in potentially using the metal-organic framework (MOF) in advanced oxidation processes (AOPs), their application for environmental abatement and the corresponding degradation mechanisms have remained largely elusive. This study explores the use of cobalt-based MOF (CoMOF) for peroxymonosulfate (PMS) activation to remove tetracycline (TC) from water resources. Under optimal conditions, the given catalytic system could achieve a TC removal of 83.

Rapid and Efficient Dual Detection Of Zn Ions and Oxytetracycline Hydrochloride Using a Responsive Fluorescent "On-Off" Sensor Based on Simple Salen-Type Schiff Base Ligand.

This research has progressed to an effective detection chemosensor of zinc, aluminum ions and oxytetracycline hydrochloride antibiotic based on the fluorescence technique. A straightforward method utilizing microwave irradiation was employed to synthesize the salen-type Schiff base ligand N,N'-bis(salicylaldehyde)4,5-dichloro-1,2-phenylenediamine (HI), providing a good 70 % yield. In ethanol, the HI sensor demonstrated remarkable rapidity, selectivity, and sensitivity in detecting zinc ions.

Facile synthesis of Fe-based metal-organic frameworks from FeO nanoparticles and their application for CO/N separation.

A facile approach was employed to fabricate MIL-100(Fe) materials from FeO nanoparticles through a conventional hydrothermal reaction without the presence of HF and HNO. Effects of trimesic acid content in the reaction system on the quality and CO/N separation performance of the as-prepared MIL-100(Fe) samples were investigated. Using 1.

Toxic metals in rice among Asian countries: A review of occurrence and potential human health risks.

Heavy metals such as cadmium (Cd), arsenic (As), and lead (Pb) pose significant health risks, particularly in Asia, where rice is a staple for nearly three billion people. Despite their known dangers and environmental prevalence, studies addressing their concentrations in rice across different regions and the associated health implications remain insufficient. This review systematically examines the occurrence and impact of these toxic elements, filling a critical gap in the literature.

Photocatalytic degradation of antibiotic sulfamethizole by visible light activated perovskite LaZnO.

In this work, the perovskite LaZnO was synthesized via sol-gel method and applied for photocatalytic treatment of sulfamethizole (SMZ) antibiotics under visible light activation. SMZ was almost completely degraded (99.2% ± 0.

Exploring optical descriptors for rapid estimation of coastal sediment organic carbon and nearby land-use classifications via machine learning models.

This study utilizes ultraviolet and fluorescence spectroscopic indices of dissolved organic matter (DOM) from sediments, combined with machine learning (ML) models, to develop an optimized predictive model for estimating sediment total organic carbon (TOC) and identifying adjacent land-use types in coastal sediments from the Yellow and Bohai Seas. Our results indicate that ML models surpass traditional regression techniques in estimating TOC and classifying land-use types. Penalized Least Squares Regression (PLR) and Cubist models show exceptional TOC estimation capabilities, with PLR exhibiting the lowest training error and Cubist achieving a correlation coefficient 0.

Smartphone-based paper strip assay for putrescine and spermidine detection using hybrid organic-inorganic perovskite with Eu complex.

A new method utilizing fluorescent ratiometry is proposed for detecting putrescine and spermidine. The method involves the use of a fluorescent probe comprising a 2D halide perovskite synthesized from octadecylamine-iodine and PbI a grinding-sonicating technique, along with a Eu-complex. Upon excitation at 290 nm, the probe fluoresces at two distinguishable wavelengths.

Using CuMgFe layered double oxide to replace laccase as a catalyst for abiotic humification.

Humification offers a promising avenue for sequestering dissolved organic carbon while facilitating environmental cleanup. In this study, CuMgFe layered double oxides (LDO) were applied as a catalyst to replace conventional enzymes, such as laccase, thereby enhancing the in vitro polyphenol-Maillard humification reaction. CuMgFe LDO was synthesized through calcination of CuMgFe layered double hydroxides (LDH) at 500 °C for 5 h.

Identification of mebendazole as an ethylene signaling activator reveals a role of ethylene signaling in the regulation of lateral root angles.

The lateral root angle or gravitropic set-point angle (GSA) is an important trait for root system architecture (RSA) that determines the radial expansion of the root system. The GSA therefore plays a crucial role for the ability of plants to access nutrients and water in the soil. Only a few regulatory pathways and mechanisms that determine GSA are known.

Biodiversity of aquatic organisms in the Mekong Delta, Vietnam.

Background: The Mekong River is the 10 largest river in the world. It is recognised as the most productive river in Southeast Asia and economically essential to the region, with an estimated 60-65 million people living in the lower Mekong Basin. The Mekong Delta within Vietnam is considered a highly vulnerable ecosystem under threat from increasing anthropogenic pressure, such as dam construction and, as a consequence, the Delta is sinking and altering the natural hydrological cycle.

Construction of a uniform zeolitic imidazole framework (ZIF-8) nanocrystal through a wet chemical route towards supercapacitor application.

Exploring larger surface area electrode materials is crucial for the development of an efficient supercapacitors (SCs) with superior electrochemical performance. Herein, a cost-effective strategy was adopted to synthesize a series of ZIF8 nanocrystals, and their size effect as a function of surface area was also examined. The resultant ZIF8-4 nanocrystal exhibits a uniform hexagonal structure with a large surface area (2800 m g) and nanometre size while maintaining a yield as high as 78%.

Morphological, phytochemical and genetic characterization of accessions collected throughout Vietnam and Laos.

Pennywort ( L.) is commonly grown in the tropical world for its nutritional and medicinal values. Valuable saponins in pennywort are extensively investigated for their anti-tumour activities.

Tungsten-based nanocatalysts with different structures for visible light responsive photocatalytic degradation of bisphenol A.

Environmental pollution, such as water contamination, is a critical issue that must be absolutely addressed. Here, three different morphologies of tungsten-based photocatalysts (WO nanorods, WO/WS nanobricks, WO/WS nanorods) are made using a simple hydrothermal method by changing the solvents (HO, DMF, aqueous HCl solution). The as-prepared nanocatalysts have excellent thermal stability, large porosity, and high hydrophilicity.

Structural Characterization and Cytotoxic Activity Evaluation of Ulvan Polysaccharides Extracted from the Green Algae .

Ulvan, a sulfated heteropolysaccharide with structural and functional properties of interest for various uses, was extracted from the green seaweed . is an unexplored species found in the South China Sea along the central coast of Vietnam. Based on dry weight, the ulvan yield was ~15% (/) and the ulvan had a sulfate content of 13.

CuO/FeO/UiO-66 nanocomposite as an efficient fenton-like catalyst: Performance in organic pollutant degradation and influencing factors based machinelearning.

The persistent presence of organic pollutants like dyes in water environment necessitates innovative approaches for efficient degradation. In this research, we developed an advanced hybrid catalyst by combining metal oxides (CuO, FeO) with UiO-66, serving as a heterogeneous Fenton catalyst for for efficient RB19 breakdown in water with HO. The control factors to the catalytic behavior were also quantified by machine learning.

Metal-organic framework-based nanomaterials for CO storage: A review.

The increasing recognition of the impact of CO emissions as a global concern, directly linked to the rise in global temperature, has raised significant attention. Carbon capture and storage, particularly in association with adsorbents, has occurred as a pivotal approach to address this pressing issue. Large surface area, high porosity, and abundant adsorption sites make metal-organic frameworks (MOFs) promising contenders for CO uptake.

Ni, Co, Zn, and Cu metal-organic framework-based nanomaterials for electrochemical reduction of CO: A review.

The combustion of fossil fuels has resulted in the amplification of the greenhouse effect, primarily through the release of a substantial quantity of carbon dioxide into the atmosphere. The imperative pursuit of converting CO into valuable chemicals through electrochemical techniques has garnered significant attention. Metal-organic frameworks (MOFs) have occured as highly prospective materials for the reduction of CO, owing to their exceptional attributes including extensive surface area, customizable architectures, pronounced porosity, abundant active sites, and well-distributed metallic nodes.

Characterization and Bioactivity of L. Extract-Doped ZnO Nanoparticles Biosynthesized by Co-Precipitation Method.

Green synthesis and nanomaterials have been the current trends in biomedical materials. In this study, L. leaf extract-doped ZnO nanoparticles (PLE-doped ZnO NPs), a novel nanomaterial, were studied including the synthesis process, and the biomedical activity was evaluated.

A novel diphenylbutenoid-type compound from the rhizomes of (J.Koenig) Link ex A.Dietr. (Zingiberaceae).

From the EtOAc-soluble extract of the rhizomes of (J.Koenig) Link ex A.Dietr.

Enhanced growth performance of abi5 plants under high salt and nitrate is associated with reduced nitric oxide levels.

Numerous environmental stresses have a significant impact on plant growth and development. By 2050, it is anticipated that high salinity will destroy more than fifty percent of the world's agricultural land. Understanding how plants react to the excessive use of nitrogen fertilizers and salt stress is crucial for enhancing crop yield.