Volume 6, Issue 1, 2021

Volume 6, Issue 1, 2021

ISSN 2501-7837
ISSN-L 2501-7837

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  • Green-synthesized Ag-MnO2 nanoparticles as plausible non-invasive antimicrobial treatment of cultural heritage


    Abstract: Green-synthesized Ag-MnO2 nanoparticles were tested for their antimicrobial capacity. Two important plant extracts were used for synthesis: Vinca minor and Chelidonium majus, with well-known pharmacological activities. After the determination of the minimal inhibitory concentration against two bacterial strains (one Gram-negative and one Gram-positive model), the plant extracts were used to form three types of metal nanoparticles. The antimicrobial effect of the nanoparticles was assessed against E. coli, Staphylococcus aureus, and the yeast Candida albicans. The results indicated that the Ag-MnO2 nanoparticles synthesized with V. minor plant extract were the most efficient against all tested pathogens. As a future perspective, these nanoparticles are suited to design a non-invasive applicator to treat biodeteriorated cultural heritage, such as archives, sculptures, or paintings.

    Keywords: Ag-MnO2, green synthesis, antimicrobial effects, image processing, cultural heritage.

    entire article DOI https://doi.org/10.5719/GeoP.6/1

  • Gilort river channel dynamics economic impact assessment in the 2010-2019 period Study case: The segment between Bălcești and Târgu Cărbunești


    Abstract: The importance of analyzing river channel dynamics is granted by the scientific need of knowing the way of evolution in order to elaborate more accurate evolution patterns and also because the river proximity always constituted an area for developing settlements due to its resources. Therefore, river channel dynamics is closesly related to population dynamics in its vecinity and has direct effects towards them through active processes. This paper aims to identify the Gilort river channel dynamics economic impact on local comunities development, using a GIS-based analysis and high resolution spatial data.

    Keywords: Gilort, river channel, dynamics, economic impact.

    entire article DOI https://doi.org/10.5719/GeoP.6/2

  • Overview of the seismic vulnerability problem of the urban settlements in Romania


    Abstract: Seismic vulnerability is of particular interest to the scientific community, authorities and general population in Romania, given the fact that the territory of the country is mainly subject to strong intermediate-depth earthquakes that originate in the Vrancea Seismogenic Zone. However, little has been done to strengthen the resilience of urban settlements, which are especially vulnerable to earthquakes. This paper represents a summary of the seismic vulnerability problem in Romania that focuses on its various sources and on the scientific works elaborated on this topic. Also, several proposals that target both future earthquake vulnerability research and modelling actions are presented, in the endeavour to stress out the necessity of using scientific findings as grounds for decision-making.

    Keywords: vulnerability, seismic vulnerability, vulnerability assessment, Romania.

    entire article DOI https://doi.org/10.5719/GeoP.6/3

  • Evaluating seismic risk perception and preparedness in Romania through questionnaires designed to reveal geopatterns and attitude profiles


    Abstract: In order for strategies in seismic risk mitigation to be effective, they need to consider both the level of risk but also the needs and attitude of people subjected to the desired change. Questionnaires are one of the most common tools to assess the perception and preparedness of people to earthquakes, however we found that many designs and interpretations are limited to the obvious remarks and are not conceived or analyzed in ways enabling the determination of sociological profiles and geospatial patterns. Through this paper we show the potential of new questionnaire-based approaches and interpretations, highlighting aspects such as i) how well prepared in case of an earthquake people think and actually are depending also on their age, ii) does living in an area with high hazard values influences perception of risk and what is the difference between risk in locality versus individual risk, iii) is there a difference between how people with earthquake knowledge would behave in case of having an earthquake early warning solution compared to people with less knowledge or iv) which ways of communicating risk is considered more appropriate for different age groups. As input, we use more than 410 responses collected for most of Romania (out of which around half are for Bucharest Area), through two easy-to-fill online questionnaires: one focusing on earthquake perception as well as the level of knowledge and vision toward preparedness strategies, and another shaped as a checklist test, related to the individual level of preparedness.

    Keywords: earthquake, seismic risk, perception, Romania, preparedness, questionnaire.

    entire article DOI https://doi.org/10.5719/GeoP.6/4

  • Perception of medical resources during home isolation due to direct contact with confirmed positive patients with SARS-CoV-2


    Abstract: The COVID-19 pandemic started in December 2019 in Wuhan, China and the first cases in Romania were registered in February 2020. Those in the front line in the fight against the pandemic, the medical staff, were the most affected from a psychologically and physically point of view. This study examines the perception of medical staff in isolation after coming into contact with confirmed positive patients with the SARS-CoV-2 virus. The study identifies psychologically differentiated patterns of reaction and behaviour based on social and professional determinants.

    Keywords: perception, anxiety, social distance, SARS-CoV-2.

    entire article DOI https://doi.org/10.5719/GeoP.6/5

  • Gender and diversity in geosciences related Union session at the European Geosciences Union General Assembly in Vienna 2019-2021


    Abstract: Review of the sessions related to gender and diversity at the EGU Gas in Vienna, both on site and online.

    Keywords: Women in science, geoscience, inclusion.

    entire article DOI https://doi.org/10.5719/GeoP.6/6