57 research outputs found

    Situation and solutions to implement social security policies in Nga Son district, Thanh Hoa province, Vietnam

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    Analyze the current situation and propose solutions in the implementation of social security policies in Nga Son district, Thanh Hoa province, Vietnam. 155 family support representatives who are enjoying social security policies in 3 sample units: Nga Thuy, Nga Thang and Nga Son town, the sample is taken based on general consultation and guidance of functional departments related to social security policy implementation in Nga Son district , Thanh Hoa province. Statistics and description of the actual situation of implementing social welfare policy in Nga Son district, Thanh Hoa province in terms of: job creation policy, income; social insurance policies, preferential policies and social allowances, basic social service policies. From there, propose solutions to improve the efficiency of organization and implementation of social security policies in Nga Son district, Thanh Hoa province. Conclusion: The study has successfully analyzed the actual situation of implementing social security policies in Nga Son district, Thanh Hoa province in the period of 2020-2022, specifically in the following contents: Employment, income, employment policy, social insurance, social incentives and allowances, basic social services. The policy implementation process still has a number of limitations, such as: The planning policies to organize the implementation still do not have the participation of the people in the implementation process, mainly from the top down. , there has not been much participation of policy beneficiaries. From those limitations, study the orientation of implementing social security policies in Nga Son district and propose 4 groups of possible solutions

    A Novel Wideband Circularly Polarized Antenna for RF Energy Harvesting in Wireless Sensor Nodes

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    A novel wideband circularly polarized antenna array using sequential rotation feeding network is presented in this paper. The proposed antenna array has a relative bandwidth of 38.7% at frequencies from 5.05 GHz to 7.45 GHz with a highest gain of 12 dBi at 6 GHz. A corresponding left-handed metamaterial is designed in order to increase antenna gain without significantly affecting its polarization characteristics. The wideband circularly polarized antenna with 2.4 GHz of bandwidth is a promising solution for wireless communication system such as tracking or wireless energy harvesting from Wi-Fi signal based on IEEE 802.11ac standard or future 5G cellular. A potential application of this antenna as a receiving antenna for RF-DC device to obtain DC power for a wireless sensor node from Wi-Fi signal is shown

    Preparation of Ti/TiO2-PANi electrodes by combining method of thermal treatment with polymerization processing and their electrochemical property

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    Ti/TiO2-PANi-electrodes were synthesized by combining method of thermal treatment of titanium substrate with chemical polymerization processing of aniline on which. Their morphological structure was observed by scanning electron microscopy. The presence of PANi and TiO2 were indicated by infrared spectra and X-ray diffraction, respectively. Their electrochemical properties were characterized by cyclic voltammetry and impedance spectroscopy. The results showed that their photoelectrochemical property with light on in 0.5 M H2SO4 indicating a n-conductor that depended on PANi thickness covered TiO2-layer among them the best one obtained by oxidative temperature of 500 oC for 30 minutes during thermal treatment of titanium substrate connected with an immersing into acidic aniline solution for only 8 min during polymerization

    Multiple Wolbachia strains provide comparative levels of protection against dengue virus infection in Aedes aegypti.

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    The insect bacterium Wolbachia pipientis is being introgressed into Aedes aegypti populations as an intervention against the transmission of medically important arboviruses. Here we compare Ae. aegypti mosquitoes infected with wMelCS or wAlbB to the widely used wMel Wolbachia strain on an Australian nuclear genetic background for their susceptibility to infection by dengue virus (DENV) genotypes spanning all four serotypes. All Wolbachia-infected mosquitoes were more resistant to intrathoracic DENV challenge than their wildtype counterparts. Blocking of DENV replication was greatest by wMelCS. Conversely, wAlbB-infected mosquitoes were more susceptible to whole body infection than wMel and wMelCS. We extended these findings via mosquito oral feeding experiments, using viremic blood from 36 acute, hospitalised dengue cases in Vietnam, additionally including wMel and wildtype mosquitoes on a Vietnamese nuclear genetic background. As above, wAlbB was less effective at blocking DENV replication in the abdomen compared to wMel and wMelCS. The transmission potential of all Wolbachia-infected mosquito lines (measured by the presence/absence of infectious DENV in mosquito saliva) after 14 days, was significantly reduced compared to their wildtype counterparts, and lowest for wMelCS and wAlbB. These data support the use of wAlbB and wMelCS strains for introgression field trials and the biocontrol of DENV transmission. Furthermore, despite observing significant differences in transmission potential between wildtype mosquitoes from Australia and Vietnam, no difference was observed between wMel-infected mosquitoes from each background suggesting that Wolbachia may override any underlying variation in DENV transmission potential

    Genome evolution of dengue virus serotype 1 under selection by <i>Wolbachia pipientis</i> in <i>Aedes aegypti</i> mosquitoes.

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    The introgression of antiviral strains of Wolbachia into Aedes aegypti mosquito populations is a public health intervention for the control of dengue. Plausibly, dengue virus (DENV) could evolve to bypass the antiviral effects of Wolbachia and undermine this approach. Here, we established a serial-passage system to investigate the evolution of DENV in Ae. aegypti mosquitoes infected with the wMel strain of Wolbachia. Using this system, we report on virus genetic outcomes after twenty passages of serotype 1 of DENV (DENV-1). An amino acid substitution, E203K, in the DENV-1 envelope protein was more frequently detected in the consensus sequence of virus populations passaged in wMel-infected Ae. aegypti than wild-type counterparts. Positive selection at residue 203 was reproducible; it occurred in passaged virus populations from independent DENV-1-infected patients and also in a second, independent experimental system. In wild-type mosquitoes and human cells, the 203K variant was rapidly replaced by the progenitor sequence. These findings provide proof of concept that wMel-associated selection of virus populations can occur in experimental conditions. Field-based studies are needed to explore whether wMel imparts selective pressure on DENV evolution in locations where wMel is established

    The Separation of Powers in John Locke's Political Philosophy

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    Separation of powers is one of the ideas with profound theoretical and practical significance, especially in the field of political science. The birth of the theory of separation of powers marked the transition from the barbaric use of power in authoritarian societies to the exercise of civilized power in democratic societies. Therefore, separation of powers is considered an objective necessity in democratic states, a condition to ensure the promotion of liberal values, and a criterion for assessing the existence and development of the Rule of Law where people's sovereignty plays a paramount role. On the way to perfecting political thinking, the theory of separation of powers has developed into a complete system in the main philosophy of John Locke. Within the scope of the article, the author focuses on analyzing Locke's ideology of separation of powers in terms of the nature of separation of powers, the basis and some principles of power division, and the roles of the different parts of government power and the relationship between them

    Raising tobacco taxes, saving lives: evidence from Vietnam

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    Background Regardless of good progress on implementing MPOWER package, Vietnam is still struggling with Raising tobacco tax intervention. Total taxes on tobacco products only account for 41.6% of retail price (WHO's recommendation rate is 65-85%). The study aims to assess health impacts of different scenarios of tobacco taxes by the reduction in tobacco consumption and smoking attributable deaths. Methods We developed a simple static model based on previous works by Jha Prabhat et al. 2010 with several improvements. The scenarios on raising cigarette taxes were aligned with Vietnam Tobacco Tax Simulation Model developed by WHO &amp; Vietnam MOF. Each scenario calculated the reduction in initiation and current consumption and then estimating smoking attributable deaths averted and health cost saved based on existed evidence in low and middle income countries. Four smoking groups including current youth smokers, future youth smokers, current adult smokers and future adult smokers were evaluated separately. Results Four scenarios of raising tobacco taxes would prevent 278,380 - 289,268 premature deaths, equivalent to the mortality cost of US2,5282,636million.Estimated4.5attributabledeathswouldbeavertedifthesmokingmortalityandquittingproportionareat30comparingwithfiguresof2016couldleadtoataxshareat65Thisextremescenariowouldpreventover919,000prematuredeathsandsaveupto8,378millionUS 2,528 - 2,636 million. Estimated 4.5% of smoking attributable deaths would be averted if the smoking mortality and quitting proportion are at 30%. In the extreme scenario, raising total taxes by 116% comparing with figures of 2016 could lead to a tax share at 65% of retail price. This extreme scenario would prevent over 919,000 premature deaths and save up to 8,378 million US. 14.7% of smoking attributable deaths in total population would be avoided while this would made up to 52.38% among future youth smokers. Conclusions Raising cigarette tax and prices in Vietnam could lead to considerable reduction in deadly burden of tobacco use, further result in saving huge amount of money for society. Therefore, Vietnam should pay more attention on the implementation of tax and price policies as recommended by WHO
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