Multi-environment Genomic Selection in Rice Elite Breeding Lines.

Background: Assessing the performance of elite lines in target environments is essential for breeding programs to select the most relevant genotypes. One of the main complexities in this task resides in accounting for the genotype by environment interactions. Genomic prediction models that integrate information from multi-environment trials and environmental covariates can be efficient tools in this context.

A Rare Case of Urinary Retention Due to Prostate Tuberculosis in Vietnam.

Prostate tuberculosis is a rare clinical form of extrapulmonary tuberculosis, which causes acute urinary retention infrequently. Cases of prostate tuberculosis reported in the literature often show slow progression with insidious pre-existing urinary disturbances. It can pose a diagnostic dilemma, and the treatment protocols can be challenging.

Insights into Electronucleation and Electrodeposition of Nickel from a Non-aqueous Solvent Based on NiCl·6HO Dissolved in Ethylene Glycol.

This work deals with nickel electronucleation and growth processes onto a glassy carbon electrode from NiCl·6HO dissolved in ethylene glycol (EG) solutions with and without 250 mM NaCl as a supporting electrolyte. The physicochemical properties of EG solutions, namely, viscosity and conductivity, were determined for different Ni(II) concentrations. From cyclic voltammetry, it was found that in the absence of the supporting electrolyte, the cathodic efficiency of Ni electrodeposition is about 88%; however, in the presence of the supporting electrolyte, the cathodic efficiency was reduced to 26% due to water (added along the supporting electrolyte) reduction on the growing surfaces of Ni nuclei.

Low-operating temperature and remarkably responsive methanol sensors using Pt-decorated hierarchical ZnO structure.

Highly responsive methanol sensors working at low temperatures are developed using hierarchical ZnO nanorods decorated by Pt nanoparticles. The sensing materials are fabricated following a 3-step process: electrospinning of ZnO nanofibers, hydrothermal growth of hierarchical ZnO nanorods on the nanofibers and UV-assisted deposition of Pt nanoparticles. The morphology, structure and properties of the materials are examined by field-effect scanning electron microscopy, transmission electron microscope, x-ray diffraction, x-ray photoelectron spectroscopy, UV-Vis absorption spectroscopy, and electrical measurements.

MoS nanosheets-decorated SnO nanofibers for enhanced SO gas sensing performance and classification of CO, NH and H gases.

The effect of MoS nanosheet (NS) decoration on the gas-sensing properties of SnO nanofibers (NFs) was investigated. The decorated sensors were fabricated by facile on-chip electrospinning technique and subsequently dropping MoS NSs-dispersed solution. The MoS NS decoration resulted in enhanced the response and reduced the operating temperature of SnO NFs towards SO gas.

Enhanced NH and H gas sensing with HS gas interference using multilayer SnO/Pt/WO nanofilms.

The selective detection and classification of NH and HS gases with HS gas interference based on conventional SnO thin film sensors is still the main problem. In this work, three layers of SnO/Pt/WO nanofilms with different WO thicknesses (50, 80, 140, and 260 nm) were fabricated using the sputtering technique. The WO top layer were used as a gas filter to further improve the selectivity of sensors.

Coping strategies and social support among caregivers of patients with cancer: a cross-sectional study in Vietnam.

Research on coping strategies and social support among Vietnamese cancer caregivers remains limited. In this study, we aim to examine the relationships between types of coping strategies utilized and social support among cancer caregivers. This was a cross-sectional study conducted in three main cancer hospitals in the Northern, Central and Southern regions of Vietnam.

Dip-coating decoration of AgO nanoparticles on SnO nanowires for high-performance HS gas sensors.

SnO nanowires (NWs) are used in gas sensors, but their response to highly toxic gas HS is low. Thus, their performance toward the effective detection of low-level HS in air should be improved for environmental-pollution control and monitoring. Herein, AgO nanoparticle decorated SnO NWs were prepared by a simple on-chip growth and subsequent dip-coating method.

Controlled synthesis of ultrathin MoS nanoflowers for highly enhanced NO sensing at room temperature.

Fabrication of a high-performance room-temperature (RT) gas sensor is important for the future integration of sensors into smart, portable and Internet-of-Things (IoT)-based devices. Herein, we developed a NO gas sensor based on ultrathin MoS nanoflowers with high sensitivity at RT. The MoS flower-like nanostructures were synthesised a simple hydrothermal method with different growth times of 24, 36, 48, and 60 h.

Role of Baseline Albumin-Bilirubin Grade on Predict Overall Survival Among Sorafenib-Treated Patients With Hepatocellular Carcinoma in Vietnam.

Introduction: Albumin-bilirubin (ALBI) grade has been recently used in evaluation of liver function and prognosis of patients with hepatocellular carcinoma (HCC). However, in Vietnam, the utility of ALBI grade in clinical setting has not been adequately investigated.

Methods: This is a retrospective study of 110 patients with HCC treated with sorafenib from January 2010 to November 2018 at 2 tertiary hospitals in Vietnam.

Epidemiological Characteristics of Advanced Hepatocellular Carcinoma in the Northern Region of Vietnam.

Epidemiological characteristics of hepatocellular carcinoma (HCC) in Southern Vietnam has been well reported as in Globocan 2018 while data from the North has still not been fully presented. Therefore, we conducted this retrospective descriptive study on 198 advanced HCC patients treated at 3 major hospitals in Northern Vietnam to describe demographic features, HCC risk factors, and correlation among them in patients with advanced HCC. This information will lead to prevention efforts and provide information for allocating funds for treatment.

Self-heated Ag-decorated SnO nanowires with low power consumption used as a predictive virtual multisensor for HS-selective sensing.

Multisensor systems with low-power consumption are emerging for the Internet of Things. In this work, we demonstrate the use of self-heated networked Ag-decorated SnO NW sensors integrated into a portable module for selective detection of HS gas at low power consumption, and the integrated system is simulated as a virtual multisensor under varying heating powers for identifying and quantifying different reducing gases. The HS gas-sensing characterisations at the different self-heating powers of 2-10 mW showed that the gas response significantly increased with the increase in Ag density decoration and the heated power strongly affected the gas-sensing performance and sensor stability.

An effective HS sensor based on SnO nanowires decorated with NiO nanoparticles by electron beam evaporation.

The highly toxic hydrogen sulphide (HS) present in air can cause negative effects on human health. Thus, monitoring of this gas is vital in gas leak alarms and security. Efforts have been devoted to the fabrication and enhancement of the HS-sensing performance of gas sensors.

Konjac glucomannan-templated synthesis of three-dimensional NiO nanostructures assembled from porous NiO nanoplates for gas sensors.

Biopolymer template synthesis has attracted extensive interest for fabricating highly porous metal oxide nanostructures. In this report, a green template-based approach for the synthesis of three-dimensional (3D) NiO nanostructures assembled from porous NiO nanoplates is introduced using a konjac glucomannan (KGM) template. The Ni-KGM composites, which were formed by the immersion of KGM nanofibrils in nickel nitrate solution, were annealed in air at 600 °C to obtain the highly porous NiO nanoplates.

Magnetic iron oxide nanoparticles decorated graphene for chemoresistive gas sensing: The particle size effects.

We report a synthesis of magnetic nanoparticles chemically immobilized onto reduced graphene oxide sheets (referred to as rGO-FeO NPs) as a gas and vapor sensing platform with precisely designed particle size of 5, 10 and 20 nm to explore their influence of particle size on sensing performance. The rGO-FeO NP sensors have been investigated their responses to different gases and volatile organic compounds (VOCs) at part-per-million (ppm) levels. Results show that the FeO NPs with smaller size (5 and 10 nm) on the rGO surface led to a lower sensitivity, while particles of a size of 20 nm have a significant enhancement of sensitivity compared to the bare rGO sensor.

Ultralow power consumption gas sensor based on a self-heated nanojunction of SnO nanowires.

The long duration of a working device with a limited battery capacity requires gas sensors with low power consumption. A self-heated gas sensor is a highly promising candidate to satisfy this requirement. In this study, two gas sensors with sparse and dense SnO nanowire (NW) networks were investigated under the Joule heating effect at the nanojunction.

Facile on-chip electrospinning of ZnFeO nanofiber sensors with excellent sensing performance to HS down ppb level.

ZnFeO nanofiber gas sensors are cost-effectively fabricated by direct electrospinning on microelectrode chip with Pt interdigitated electrodes and subsequent calcination under different conditions to maximize their response to HS gas. The synthesized nanofibers of approximately 30-100 nm in diameter show typical spider-net-like morphology of the electrospun nanofibers. The ZnFeO nanofibers comprise many 10-25 nm nanograins, which results in multi-porous structures.

A comparative study on the electrochemical properties of nanoporous nickel oxide nanowires and nanosheets prepared by a hydrothermal method.

Metal oxide nanostructures have been extensively used in electrochemical devices due to their advantages, including high active surface area and chemical stability. However, the electrochemical properties of metal oxides are strongly dependent on their structural characteristics. We performed a comparative study on the electrochemical performance of nanoporous nickel oxide (NiO) nanosheets and nanowires.

CHOH and NO sensing properties of ZnO nanostructures: correlation between crystal size, defect level and sensing performance.

ZnO nanostructures can be synthesized using different techniques for gas sensor applications, but different synthesis methods produce different morphologies, specific surface areas, crystal sizes, and physical properties, which consequently influence the gas-sensing properties of materials. Many parameters such as morphology, specific surface areas, crystal sizes, and defect level can influence the gas-sensing properties of ZnO nanostructures. However, it is not clear which parameter dominates the gas-sensing performance.

Biological Characteristics and Antimicrobial Activity of Endophytic sp. TQR12-4 Isolated from Elite Cultivar Ham Yen of Vietnam.

Ham Yen orange ( Lour) is the highly valuable commercial fruit of Vietnam. With the blooming of fruit production and farming area, this specialty crop is facing threats from several serious diseases; therefore the search for new effective biocontrollers is required to prevent the existing excessive use of fertilizers and plant protection chemicals. Endophytic actinomycetes are of great scientific interest due to their high potential of application in agriculture and pharmaceutical research.

Chlorine Gas Sensing Performance of On-Chip Grown ZnO, WO3, and SnO2 Nanowire Sensors.

Monitoring toxic chlorine (Cl2) at the parts-per-billion (ppb) level is crucial for safe usage of this gas. Herein, ZnO, WO3, and SnO2 nanowire sensors were fabricated using an on-chip growth technique with chemical vapor deposition. The Cl2 gas-sensing characteristics of the fabricated sensors were systematically investigated.

Liver Cancer Detection by a Simple, Inexpensive and Effective Immunosensor with Zinc Oxide Nanoparticles.

Regular monitoring of blood α-fetoprotein (AFP) and/or carcino-embryonic antigen (CEA) levels is important for the routine screening of liver cancer. However, AFP and CEA have a much lower specificity than des-γ-carboxyprothrombin (DCP) to detect liver cancer. Therefore, the study reported here was designed, to develop a screen-printed DCP immunosensor incorporating zinc oxide nanoparticles, for accurate determination of DCP.

Fabrication of highly sensitive and selective H₂ gas sensor based on SnO₂ thin film sensitized with microsized Pd islands.

Ultrasensitive and selective hydrogen gas sensor is vital component in safe use of hydrogen that requires a detection and alarm of leakage. Herein, we fabricated a H2 sensing devices by adopting a simple design of planar-type structure sensor in which the heater, electrode, and sensing layer were patterned on the front side of a silicon wafer. The SnO2 thin film-based sensors that were sensitized with microsized Pd islands were fabricated at a wafer-scale by using a sputtering system combined with micro-electronic techniques.

Comparative study on CO2 and CO sensing performance of LaOCl-coated ZnO nanowires.

Carbon dioxide (CO(2)) and carbon monoxide (CO) emissions from industries and combustion fuels such as coal, oil, hydrocarbon, and natural gases are increasing, thus causing environmental pollution and climate change. The selective detection of CO(2) and CO gases is important for environmental monitoring and industrial safety applications. In this work, LaOCl-coated ZnO nanowires (NWs) sensors are fabricated and characterized for the detection of CO(2) (250-4000 ppm) and CO (10-200 ppm) gases at different operating temperatures.