Knowledge, attitude and preventive practice toward Covid-19 and associated factors among outpatients in a rural hospital in Vietnam.

Background: The COVID-19 pandemic has emphasized the critical role of public knowledge, attitudes, and practices (KAP) in disease containment. Understanding these aspects can guide health promotion initiatives and policy decisions.

Design And Methods: This cross-sectional study examined the KAP concerning COVID-19 prevention in Vietnam.

Effects of postoperative atrial fibrillation on cardiac surgery outcomes in Vietnam: a prospective multicenter study.

Background: This study was designed to assess the impact of postoperative atrial fibrillation (POAF) on short- and long-term outcomes after cardiac surgery.

Methods: We prospectively assessed POAF concerning outcomes in 379 adult patients who had undergone cardiac surgery in two heart surgery centers with a follow-up period of one year for every patient. The effects of POAF on postoperative events were evaluated using Logistic regression, Cox regression (adjusted for propensity score), and Kaplan-Meier analysis.

Environmentally-Friendly Pesticidal Activities of Callicarpa and Karomia Essential Oils from Vietnam and Their Microemulsions.

There is an ongoing interest to identify alternative pesticidal agents to avoid the chronic problems associated with synthetic pesticides. Essential oils have shown promise as botanical pest control agents. In the present study, the essential oils of four members of the Lamiaceae (Callicarpa candicans, C.

Burden and mortality of sepsis and septic shock at a high-volume, single-center in Vietnam: a retrospective study.

Background: Sepsis and septic shock have high mortality rates and often require a prolonged hospital stay. Patient outcomes may vary according to multiple factors. We aim to determine the prevalence of antimicrobial resistance and factors associated with mortality and hospital stay.

Predicting atrial fibrillation after cardiac surgery using a simplified risk index.

Background: Postoperative atrial fibrillation (POAF) is a common complication after cardiac surgery and can lead to increased risk of postoperative adverse events. However, atrial fibrillation and postoperative adverse events are preventable. In this study, a risk index was developed to predict atrial fibrillation after cardiac surgery.

In Situ TEM Studies of Nanostructured Thermoelectric Materials: An Application to Mg-Doped Zn Sb Alloy.

We demonstrate an advanced approach using state of the art in situ transmission electron microscopy (TEM) to understand the interplay between nanostructures and thermoelectric (TE) properties of high-performance Mg-doped Zn Sb TE systems. By using the technique, microstructure and crystal evolutions of TE material have been dynamically captured as a function of temperature from 300 K to 573 K. On heating, we have clearly observed precipitation and growth of a Zn-rich secondary phase as nanoinclusions in the matrix of primary Zn Sb phase.

Microstructure and chemical data of the thermoelectric ZnSb material after joining to metallic electrodes and heat treatment.

The data presented in this article are related to the research article entitled: "Solder free joining as a highly effective method for making contact between thermoelectric materials and metallic electrodes" (Malik et al., 2017) [1]. This article presents microstructure obtained by scanning electron microscopy (SEM) and chemical analysis by energy dispersive X-ray spectroscopy (EDX) point measurements of the thermoelectric ZnSb legs after joining to metallic electrodes using solder (Zn-2Al) and free-soldering methods.

Biocompatibility of PCL/PLGA-BCP porous scaffold for bone tissue engineering applications.

In this study, biomimic porous polycaprolactone/poly (lactide-co-glycolide) loading biphasic tricalcium phosphate (PCL/PLGA-BCP) scaffolds were fabricated successfully by solvent evaporation method. The distribution of biphasic tricalcium phosphate (BCP) in polycaprolactone/poly (lactide-co-glycolide) (PCL/PLGA) scaffold was confirmed by micro-computed tomography (micro-CT) scanning, scanning electron microscope (SEM) observation and Energy-dispersive X-ray Spectroscopy (EDS) analysis. The hydrophilicity of the scaffolds was confirmed by contact angle measurement.

Discovery of high-performance low-cost n-type MgSb-based thermoelectric materials with multi-valley conduction bands.

Widespread application of thermoelectric devices for waste heat recovery requires low-cost high-performance materials. The currently available n-type thermoelectric materials are limited either by their low efficiencies or by being based on expensive, scarce or toxic elements. Here we report a low-cost n-type material, Te-doped MgSbBi, that exhibits a very high figure of merit zT ranging from 0.

The use of dermal graft in severe chordee hypospadias repair: experience from Vietnam.

Purpose: Severe chordee with hypospadias may require repair by ventral corporoplasty with a free graft before urethroplasty. We report an 11 year experience with one-stage and two-stage hypospadias repair using dermal grafts.

Materials And Methods: From 12/1997 to 12/2008, 47 hypospadias with severe chordee were repaired using a ventral dermal graft to correct the chordee.

Temperature dependence dynamical permeability characterization of magnetic thin film using near-field microwave microscopy.

A temperature dependence characterization system of microwave permeability of magnetic thin film up to 5 GHz in the temperature range from room temperature up to 423 K is designed and fabricated as a prototype measurement fixture. It is based on the near field microwave microscopy technique (NFMM). The scaling coefficient of the fixture can be determined by (i) calibrating the NFMM with a standard sample whose permeability is known; (ii) by calibrating the NFMM with an established dynamic permeability measurement technique such as shorted microstrip transmission line perturbation method; (iii) adjusting the real part of the complex permeability at low frequency to fit the value of initial permeability.

Perineal canal: a special entity of anorectal malformations in Vietnam.

Purpose: We report our clinical experience with the perineal canal and suggest the management.

Materials And Methods: Retrospective chart review of patients with perineal canal were classified by lesion characteristics into Group I: active perineal inflammation, Group II: vulvar excoriation and Group III: no active inflammation. Group III patients underwent primary surgical repair.

Transpelvic anastomotic stenting: a good option for diversion after pyeloplasty in children.

Purpose: Several options are available to drain the renal pelvis after a dysmembered pyeloplasty. The purpose of our study was to review the results of transrenal pelvic transanastomotic stenting following ureteropelvic junction obstruction pyeloplasty (UPJO).

Patients And Methods: A retrospective chart review of 238 patients with UPJO (243 renal units) treated in 2004-2007.

Single ectopic ureter: diagnostic value of contrast vaginography.

Objectives: To present the diagnostic results of contrast vaginography to detect a vaginal ectopic ureter, in addition to investigation with ultrasonography, intravenous urography, and technetium-99m-dimercaptosuccinic acid renal scan. A single ectopic ureter is a rare anomaly.

Methods: Eighteen girls with a single ectopic ureter were treated at the Children's Hospital No.