The purpose of this study was to examine the current utilization of healthcare services, exploring unmet healthcare needs and the associated factors among people living in rural Vietnam. This cross-sectional study was conducted with 233 participants in a rural area. The methods included face-to-face interviews using a structured questionnaire, and anthropometric and blood pressure measurements. We considered participants to have unmet health needs if they had any kind of health problem during the past 12 months for which they were unable to see a healthcare provider. Multivariate logistic regression analysis was performed to determine the factors associated with unmet healthcare needs. Of the participants, 18% (n = 43) had unmet healthcare needs, for reasons like transportation (30%), a lack of available doctors or medicine (47%), and communication issues with healthcare providers (16%). The multivariate logistic regression showed that living in a rural area, having stage 2 hypertension, and having insurance were associated with unmet healthcare needs. To better meet the healthcare needs in rural or suburban areas of Vietnam, allocation of adequate healthcare resources should be distributed in rural areas and insurance coverage for personalized healthcare needs might be required. Efforts should focus on availability of medicine, improvement of transportation systems, and communication skills of healthcare providers to improve access to healthcare services.

Background: Although health status in Vietnam has been much improved, people living in rural areas have faced several challenges, including a rapid increase of the aging population, inadequate capacity of health system, and problems of inequities in access to the healthcare system. The purpose of this study was to examine the current utilization of healthcare services, exploring unmet healthcare needs and their associated factors among adults living in rural Vietnam.Methods: This cross sectional study was conducted with 233 participants in a rural area of Binh Phuoc province and a suburban area of Da Lat city in Vietnam from October–December 2017. The methods included face-to-face interviews using a structured questionnaire as well as anthropometric and blood pressure measurements. We considered participants to have unmet health needs if they had any kind of health problem during the past 12 months for which they were unable to see a healthcare provider in the same period. Multivariate logistic regression analysis was performed to determine the factors associated with unmet healthcare needs.Results: Of the participants, 18% (n=43) had unmet healthcare needs. The common causes of unmet healthcare were transportation (30%), a lack of available doctors or medicines (47%), and communication issues with healthcare providers (16%). The multivariate logistic regression showed that having stage 2 high blood pressure and reporting no place to go for medical problems were associated with unmet healthcare needs.Conclusions: Healthcare services are still needed in disadvantaged group living in rural or suburban area of Vietnam. Efforts should focus on availability of medicines, improvement of transportation system as well as communication skills of healthcare providers to improve access to healthcare services.

Gelled electrolyte is made at different temperatures based on liquid glass and sulfuric acid using two organic additives such as polyacrylamide and polyaniline. The antimony lead electrode is used to study the electrochemical properties of gelled electrolyte through cyclic voltammetry, electrochemical impedance and ionic conductivity determination. The results showed that the gelled electrolyte made at low temperature is in a more favorable form of gel than that at high temperature, the ability to extract water was also overcome. The resistance of charge transfer of lead electrodes operating in an gelled electrolyte environment is all lower than that in sulfuric acid (d = 1.26 g /cm 3 ), in which the presence of PANi together with PAM is recorded as the smallest. When the lead electrode was anodized, the simultaneous formation of PbO with PbSO4 did not appear due to the presence of PANi.

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Mixed gel electrolytes were fabricated chemically at a temperature range of 2–5°C using some additives comparing with traditional electrolytes (1.26 g/cm3 H2SO4). The polyacrylamide (PAM) content is kept constant (0.2 wt%), while the propylene glycol (PPG) and nano fumed silica (NFS) contents varied. The material characteristics of samples were assessed by physical appearance observation, electrochemical measurements, and physicochemical methods. The results showed that a hard gel without separation of solutions was found in the case using a PAM/PPG/NFS ternary additive (0.2/0.1/0.6 wt%). The morphological structure (<50 nm) of mixed gel electrolytes was in the range of nanometer. The gas release on the PbSb electrode was strongly inhibited (92.2–93.7% for O2 and ∼55% for H2 at the 120th cycle), which will both contributes to reducing the pressure as well as limiting water loss in the sealed lead acid battery, compared with that in the sulfuric acid medium.