Quantifying rice dry biomass to determine the influence of straw burning on BC and NO emissions in the Hanoi metropolitan region.

The urban setting notwithstanding, rice cultivation prevails on the outskirts of Hanoi, with the burning of rice straw in the fields posing a significant challenge. Therefore, it is crucial to conduct spatial mapping of rice distribution, assess dry biomass, and determine emissions from rice straw burning within Hanoi city. The efficacy of the deep convolutional neural networks (DCNN) model has been evident in accurately mapping the spatial distribution of rice in Hanoi, where rice cultivation extensively thrives in suburban areas.

Minimalist Natural ORPphilin Macarangin B Delineates OSBP Biological Function.

OSBP ligands from the ORPphilin family are chemically complex natural products with promising anticancer properties. Here, we describe macarangin B, a natural racemic flavonoid selective for OSBP, which stands out from other ORPphilins due to its structural simplicity and distinct biological activity. Using a bioinspired strategy, we synthesized both (,,) and (,,)-macarangin B enantiomers, enabling us to study their interaction with OSBP based on their unique optical properties.

New Shikimic Acid Derivatives From the Marine-Derived Actinomycete Streptomyces sp. G666 and Their Antimicrobial Activities.

Analysis of an antimicrobial extract from the agar-based culture of the marine-derived actinomycete Streptomyces sp. G666 led to the isolation of three new shikimic acid derivatives, streptomine A-C (1-3), along with five known compounds (4-8). Their structures were established by their spectral data analyses, including MS and NMR.

The Effectiveness of Afatinib as First-Line Treatment in Vietnamese Patients With EGFR-Mutant Non-Small Cell Lung Cancer and Brain Metastases.

Introduction: The role of afatinib in the first-line treatment of EGFR-mutant advanced non-small cell lung cancer (NSCLC) patients has been proven through clinical trials and real-world studies. However, additional data on the effectiveness of afatinib in patients with brain metastases are lacking.

Methods: EGFR-mutant NSCLC patients with brain metastases were retrospectively reviewed across nine cancer centers in Vietnam from April 1, 2018 to June 1, 2022.

Pattern of Uveitis in Northern Vietnam.

Purpose: To characterize the spectrum of uveitis in patients visiting three tertiary hospitals in Hanoi, Vietnam.

Methods: This study collected prospective and multicenter data from patients diagnosed with uveitis at three tertiary hospitals in Hanoi City, Vietnam, between January 2022 and January 2024. Data on age, sex, clinical and laboratory findings, and etiology were collected.

Changes of physicochemical, bioactive compounds and antioxidant activity of nutritional beverages products from VD20 broken Rice in the pasteurization process.

VD20 broken rice, a byproduct of rice milling, shows significant potential for value-added applications, particularly in functional beverage production. This study investigates the impact of homogenization and pasteurization on the quality and stability of VD20 broken rice-based beverages. Homogenization at speeds 6000 to 12,000 rpm for 5 to 20 min improved product stability, while pasteurization between 80 and 95 °C for up to 20 min ensured microbial safety and extended shelf life.

Study of Using Ultrasonic Waves in the Producing Dried Dragon Fruit Peel Processes.

In this study, ultrasound waves were successfully applied to the osmosis process of dried dragon fruit products. Additionally, this study was aimed at determining the suitable parameters for the process of drying dragon fruit peels. The parameters including the size of slices (2-5 cm), blanching time (10-25 min), ultrasonic time (10-25 min), ultrasonic temperature (45°C-60°C), ultrasonic power (100-250 W), and drying temperature (45°C-60°C) were fully investigated.

Prognosis of Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis: A Cohort Study of 216 Patients in an Inpatient Dermatology Department.

Introduction: Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are severe cutaneous adverse reactions. However, only a few studies have investigated the clinicodemographic and laboratory parameters predicting SJS and TEN outcomes other than mortality, such as severe complications or increased length of hospital stays. Our objectives are to identify admission risk factors predictive of severe complications and the accompanying clinical or biochemical markers associated with prolonged hospitalization.

Enhanced Fenton-Photocatalytic Degradation of Rhodamine B over Cobalt Ferrite Nanoparticles Synthesized by a Polyvinylpyrrolidone-Assisted Grinding Method.

A simple grinding method using polyvinylpyrrolidone (PVP) as a capping agent is introduced to synthesize CoFeO nanoparticles. The effects of calcination temperature (ranging from 450 to 850 °C) on the structural, morphological, physical, and optical properties of the materials are investigated using various techniques, including thermogravimetric analysis/differential scanning calorimetry (TGA/DSC), powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), N adsorption isotherm, ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), and vibrating sample magnetometry (VSM). The presence of PVP significantly suppresses the agglomeration of the materials, resulting in a nanocrystalline size of 18 nm for a sample calcined at 650 °C, which is approximately 38% smaller than that of the sample synthesized without PVP.

ZnO nanorods grown on Cu wire mesh provide a high sensitivity non-enzymatic absorbance glucose sensor.

A highly sensitive non-enzymatic absorption-based glucose sensor is introduced that combines ZnO nanorods with the ferrous oxidation-xylenol orange (FOX) assay. ZnO nanorods were successfully synthesized on the surface of a copper wire mesh, exhibiting high crystallinity, purity, and a large surface area. The glucose sensor displays a high sensitivity of 0.

A decrease in serum dihydrotestosterone levels in 9-year-old Vietnamese children from a dioxin exposure area.

Background: Dioxin is an environmental pollutant as well as an endocrine disruptor in humans. Our longitudinal study wants to clarify the relationship between dioxin exposure and endocrine disorders in children living in the Vietnamese dioxin hotspot.

Method: Seventeen congeners of polychlorinated dibenzo-p-dioxins/polychlorinated dibenzo-furans (PCDDs/PCDFs) in maternal breast milk and seven serum steroid hormones in children of 43 and 46 mothers and their 9-year-old children from the non-exposure and the hotspot areas were measured, respectively.

Risk assessments of microplastic exposure in bivalves living in the coral reefs of Vietnam.

This study aimed to assess the presence of microplastics in bottom sediment and bivalve species, including Pinna bicolor, Atrina vexillum, Saccostrea sp., and Pinctada margaritifera, living in coral reefs on Vietnam's Southern coastal. The average microplastic abundance were 0.

A plant-based oligomeric CD2v extracellular domain antigen exhibits equivalent immunogenicity to the live attenuated vaccine ASFV-G-∆I177L.

African swine fever (ASF), caused by the African swine fever virus (ASFV), is a deadly, highly contagious disease in both domestic pigs and wild boar. With mortality up to 100%, the disease has been making a serious impact on the swine industry worldwide. Because no effective antiviral treatment has been observed, proactive prevention such as vaccination remains the key to controlling the outbreak.

Translation and validation of the CLEO tool in Vietnamese to assess the significance of pharmacist interventions.

Background: There is currently no validated tool available for assessing the potential significance of pharmacist interventions in Vietnam.

Aim: This study aimed to translate the CLEO tool from French into Vietnamese, validate the Vietnamese version, and demonstrate its feasibility in daily practice.

Method: The CLEO tool was translated into Vietnamese (CLEO) using a 5-step process by bilingual experts.

Digital competence of lecturers and its impact on student learning value in higher education.

This paper explores the relationship between lecturers' digital competence and the learning value of students in higher education. By conducting an empirical study with a sample of 626 lecturers, we validated the positive impact of the six dimensions of digital competence outlined in the DigCompEdu framework, including: (i) Professional engagement, (ii) Digital resources, (iii) Teaching and learning, (iv) Assessment, (v) Empowering learners, and (vi) Facilitating learners' digital competence on the student learning value. Our findings underscore the profound significance of these dimensions in shaping students' learning experiences and outcomes, particularly within the dynamic context of Industry 4.

A consultation and work-up diagnosis protocol for a multicancer early detection test: a case series study.

The emergence of multicancer early detection (MCED) tests holds promise for improving early cancer detection and public health outcomes. However, positive MCED test results require confirmation through recommended cancer diagnostic imaging modalities. To address these challenges, we have developed a consultation and work-up protocol for definitive diagnostic results post MCED testing, named SPOT-MAS.

Bearing-Constrained Leader-Follower Formation of Single-Integrators With Disturbance Rejection: Adaptive Variable-Structure Approaches.

This article studies the problem of stabilizing a leader-follower formation specified by a set of bearing constraints while disturbed by some unknown uniformly bounded disturbances. A set of leaders are positioned at their desired positions while each follower is modeled by a single integrator with an additive time-varying disturbance. Adaptive variable-structure control laws using displacements or only bearing vectors are applied to stabilize the desired formation.

Novel Water Probe for High-Frequency Focused Transducer Applied to Scanning Acoustic Microscopy System: Simulation and Experimental Investigation.

A scanning acoustic microscopy (SAM) system is a common non-destructive instrument which is used to evaluate the material quality in scientific and industrial applications. Technically, the tested sample is immersed in water during the scanning process. Therefore, a robot arm is incorporated into the SAM system to transfer the sample for in-line inspection, which makes the system complex and increases time consumption.

Dengue Hemorrhagic Fever in Quang Nam Province (Vietnam) from 2020 to 2022-A Study on Serotypes Distribution and Immunology Factors.

Dengue hemorrhagic fever (DHF) is the most prevalent and fastest-growing vector-borne disease globally, with symptoms ranging from mild to severe and, in some cases, fatal. Quang Nam province in Vietnam can serve as a model for dengue epidemiological study, as it is an endemic region for DHF with a tropical climate, which significantly constrains the health system. However, there are very few epidemiological and microbiological reports on Dengue virus (DENV) serotypes in this region due to the limited availability of advanced surveillance infrastructure.