Ministry of Public Security

Several studies demonstrated that >~100 absolute ages of sand at certain spatial/vertical resolutions are required for constructing a reliable chronological framework for palaeoenvironmental and palaeoclimatic interpretations of dunefield construction (Telfer and Hesse, 2013). As acquiring abundant absolute ages demands significant field and lab resources, several methodological approaches, such as port-OSL-OSL age estimates, have attempted to partly overcome this necessity (Stone et al., 2019).Arid-zone encroaching dunes in the past and present, often dam drainage systems and generate proximal upstream, dune-dammed waterbodies that when dry, form playas. These waterbodies that are often seasonal, deposit distinct, low-energy, fluvial, fine-grained sediments (LFFDs), often as couplets. This recurring aeolian-dominated aeolian-fluvial (AF) process gradually leads to amplified LFFD accumulation, and partly configures dunefield, and particularly dunefield margin landscape evolution.The INQUA DuneAtlas of global dunefield chronological data includes some dated samples that are non-dune sediments such as interdune and LFFD samples. However, the complementary contribution of such sediments to interpreting dunefield chronologies has not been fully assessed (Lancaster et al., 2016). Furthermore, and surprisingly, DuneAtlas dune sand samples that date to the LGM are sparse. We demonstrate that OSL ages, partly supported by port-OSL profiling, mainly of sandy units within LFFDs, improves the resolution and reliability of dating dunefield construction events and morphological maintenance of existing dunes, and in some cases even reveals periods of dune mobilization that are absent in dated dune cores.Spatially dense, OSL-dated dune cores and sections of the ~103 km2 sized northwestern Negev dunefield (Israel) study area, revealed that the dunefield was constructed in two main sand incursion and vegetated linear dune (VLD) buildup/extension periods during the Heinrich 1 (H1) and Younger Dryas (YD) (Roskin et al., 2011; Thomas and Bailey, 2019). In this study, exposed, OSL-dated LFFD sections along the dunefield margins revealed that dune-dammed waterbodies destroyed earlier dunefield-margin dunes, partly erode others, but also preserve remains of eroded dunes between LFFD units. The LFFD sections revealed for the 1st time, significant and initial dune incursion and damming during the LGM, and also LFFD deposition thru the early Holocene (Robins et. al., 2022, 2023). The extent and relative thickness of H1-dated LFFDs suggest that dune encroachment then was greater than during the YD of the climate may have been slightly wetter. Early Holocene sediments may imply partial dune buildup or equilibrium-like dune maintenance in the early Holocene and, or also, a lag between YD dune-damming and later fluvial dune-breaching - when LFFD stratigraphic buildup gradually neared dune crest elevation leading to an outburst flood.Altogether, studying and dating dune-dammed LFFDs are proposed to not only be a complementary, but rather a primary approach to date dunefield evolution and interpret past forcing drivers of sand mobilization and stabilization, and palaeohydrology. ReferencesLancaster, N., et al., 2016. QI Robins, L., et al., 2022. QSR Robins, L., et al., 2023. QSRRoskin, J., et al., 2011. QSR Stone, A. et al. 2019. QG Telfer, M.W. and Hesse, P.P., 2013. QSR Thomas, D.S. and Bailey, R.M., 2019. AR 

To meet the demand for active prevention of urban road traffic accidents, in this paper, we propose a matching and fusion algorithm based on the address and coordinates of multi-source data. First, we investigate the multi-source data and complete the data’s classification and field structure design. Next, a preprocessing procedure that includes coordinate system transformation and data localization is proposed. Subsequently, we construct the indicator system of multi-source data on traffic safety for urban roads. Finally, the independent data records are matched with the corresponding road intersections and road segments using text matching and distance discrimination techniques, respectively. The results reveal a 21.28% increase in the number of effective records in multi-source data post-preprocessing. The fused multi-source data indicator system covers comprehensive elements and has a clear hierarchical structure, providing a more reliable data foundation for research into urban road accident prevention.

Lysophosphoglycerides (LPLs) have been reported to accumulate in myocardium and serve as a cause of arrhythmias in acute myocardial ischemia. However, in this study we found that LPLs level in the ventricular myocardium was decreased by the onset of acute myocardial ischemia in vivo in rats. Decreasing of LPLs level in left ventricular myocardium, but not right, was observed within 26 min of left myocardial ischemia, regardless of whether arrhythmias were triggered. Lower LPLs level in the ventricular myocardium was also observed in aconitine-simulated ventricular fibrillation (P < 0.0001) and ouabain-simulated III° atrioventricular block (P < 0.0001). Shot-lasting electric shock, e.g., ≤ 40 s, decreased LPLs level, while long-lasting, e.g., 5 min, increased it (fold change = 2.27, P = 0.0008). LPLs accumulation was observed in long-lasting myocardial ischemia, e.g., 4 h (fold change = 1.20, P = 0.0012), when caspase3 activity was elevated (P = 0.0012), indicating increased cell death, but not coincided with higher frequent arrhythmias. In postmortem human ventricular myocardium, differences of LPLs level in left ventricular myocardium was not observed among coronary artery disease- and other heart diseases-caused sudden death and non-heart disease caused death. LPLs level manifested a remarkable increasing from postmortem 12 h on in rats, thus abolishing the potential for serving as biomarkers of sudden cardiac death. Token together, in this study we found that LPLs in ventricular myocardium were initially decreased by the onset of ischemia, LPLs accumulation do not confer arrhythmogenesis during acute myocardial ischemia. It is necessary to reassess the roles of LPLs in myocardial infarction.

In the first half of 2021, Israel had been ahead of other countries concerning the speed of its rollout and coverage of COVID-19 vaccinations. During that time, Israel had implemented a vaccine certificate policy, the “Green Pass Policy” (GPP), to reduce virus spread and to allow the safe relaxation of COVID-19 restrictions in a time of great uncertainty. Based on an analysis of GPP regulations and public statements compiled from the Israeli Ministry of Health website, we describe the design and implementation of the GPP. We also look back and discuss lessons learned for countries that are considering a GPP policy, given the current upsurge of the Delta variant as of summer 2021. To reduce equity concerns when introducing a GPP, all population groups should be eligible for the vaccine (contingent on approval from the manufacturer) and have access to it. Alternatively, health authorities can grant temporary certificates based on a negative test. We also highlight the fact that in practice, there will be gaps between the GPP regulations and implementation. While some places might require a GPP without legal need, others will not implement it despite a legal obligation. The GPP regulations should have standardised epidemiological criteria, be implemented gradually, remain flexible, and change according to the epidemiological risks.

The porcine reproductive and respiratory syndrome virus (PRRSV) attenuated strain Hanvet1.VN has been developed by the Pharmaceutical and Veterinary Material J.S.C (HANVET) by passaging HY-2010 strain on MARC-145 cells for 80 passages and used for PRRS vaccine production. In this study, we sequenced and analyzed the whole genome of the attenuated Hanvet1.VN strain. The total RNA was extracted from the Hanvet1.VN strain, RT-PCR was used for amplification of 15 separate segments of the whole genome. The amplified segments were cloned into the pCR2.1 vector and sequenced by Sanger sequencing. The sequences were analyzed with BioEdit and DNA Star Software. The results showed that, GP5 of the Hanvet1.VN attenuated strain had 100% identity in amino acid (aa) sequences with one of the pathogenic Vietnamese strain isolated in Quang Nam Province and had 98% identity with that of the Chinese 07NM strain. However, the identity of aa sequence of the Hanvet1.VN GP5 was much lower in the comparison with GP5 of VR2332, and it was only 87%. The MP and NP proteins were highly conserved compared with pathogenic strains circulating in Vietnam (07QN) and China (07NM) (99-100%, respectively). The other eight proteins of the Hanvet1.VN strain showed changes from 1.2% in NP1a to 3.9% in GP2 compared with the 07QN strain. However, the aa identity of all Hanvet1.VN proteins were very low when compared with proteins of PRRSV type II strain (North American strain, VR2332), ranged from 86.25% to 97.7%. Our results showed that the Hanvet1.VN attenuated vaccine strain had protective immunogenicity similar to that strain circulating in Vietnam closely related to a strain from China but different from the type II North American strain VR2332. Hence, for importing PRRSV vaccine, especially from American or Europe Countries, antigenic compatibility of the PRRSV vaccine and strains circulating in Vietnam should be concerned in PRRSV vaccine production.

With the development of globalization and new technology, it is difficult for the existing data protection framework of EU to adapt to the new challenges inbig data era. The European Commission sought to establish new legal framework to deal with challenges actively, so“General Data Protection Regulation“£ ̈GDPR£©was enacted in November2012. Analysis of GDPR background andthe overview of its impact to the world and Chinaare significant for the dialysis of the development trend of the contemporary data protection and the creation of a safe and reliable onlineenvironment.

Along with the RFID applied on vehicle technology researching, it is very important that the RFID technology and video technology were combined to management the vehicle moving on the road. Under several projects supported by government, we have a good opportunity to experiment and solve the exact matching problem of the RFID and image of moving vehicle. Firstly, the same space-time exact matching method for the RFID and image of moving vehicle under high speed free flow road conditions was proposed. Secondly, the experimental scheme was made by introducing the vehicle sensing coil to bridge the RFID and image information. Lastly, we obtained a large number of experimental data and made a lot of comparison analysis. The experimental results shown that the method is scientific and practical.

Abstract. Recent advances in computational capabilities of computer clusters made operational deployments of coupled atmosphere-fire models feasible, as the weather and fire spread forecast can be nowadays generated faster than real time. This paper presents new developments in the coupled WRF-SFIRE model and related software in past two years, being a response to the needs of the community interested in operational testing of WRF-SFIRE. We describe a new concept of the fireline intensity intended to better inform about the local fire front properties and fire danger. We present a fuel moisture model and a fuel moisture data assimilation system based on the Remote Automated Weather Stations (RAWS) observations, allowing for fire simulations across landscapes and time scales of varying fuel moisture conditions. The paper also describes the implementation of a coupling with the atmospheric chemistry and aerosol schemes in WRF-Chem allowing for simulation of smoke dispersion and effects of fires on air quality, as well as a data assimilation method allowing for starting the fire simulations from an observed fire perimeters instead of ignition points. Finally, an example of an operational deployment and new visualization and the data management tools are presented.

The released and implemented traffic signals are analyzed, and the important content on the application of traffic signals is studied, which can provide help on the scientific establishment of road traffic signals. The related content about the classification, sequence, setting conditions and setting quantity of the road traffic signals is explained in detailed. Two design schemes of right-turning vehicle control mode are proposed. The conversion sequence of traffic signals and setting of crosswalk signals are respectively studied. The Opinions for the next revision is proposed according to the problems in present technique standard.