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Publicatii proprii
In search of a relevant indicator measuring territorial disparities in a transition country. Case study: Romania
Countries in transition to a market economy exhibit increased regional disparities, leading to differences in the standard of life and in the chances of the population to benefit from the radical socio-economic and political changes. Our aim in this article is to find an index other than the gross domestic product, and maybe a synthetic one, capable of measuring territorial imbalances. In search of such an index, we considered 17 indicators to be
Read moreAnalysis of the Orientation of Cyanobacteria in Bahamian Stromatolite Mats Using a Digital Image Analysis and GIS-Based Approach
Oldest known macrofossils on Earth, marine stromatolites are known to result from microbially mediated processes, and are still forming in remote environments. The microbial mats of stromatolites are fueled by cyanobacterial autotrophy. Several studies documented that cyanobacteria are able to move within these environments. Previous observations of stromatolites documented a preferential orientation of cyanobacteria, but there was no mathematical
Read moreUsing geographical information techniques to quantify the spatial structure of endolithic boring processes within sediment grains of marine stromatolites
Marine stromatolites are generated through the interactions of environmental parameters and specific microbial processes. The activities of endolithic bacteria, that bore canals through calcium carbonate (CaCO3) sand grains (ooids) and reprecipitate the CaCO3 as a single layer (i.e. micritic laminae) are especially important in the longer term stability of the stromatolite macrostructure. Image analysis and classification approaches have been used
Read moreReconstruction and computation of microscale biovolumes using geographical information systems: potential difficulties
Biofilms are bacterial colonies enveloped in a matrix of extracellular polymeric secretions. Confocal scanning laser microscopy has been used in conjunction with different image analysis techniques to investigate the structure of biofilms. A major goal is to reconstitute the three-dimensional structure of biofilms, and compute or estimate the biovolumes. Our previous research focused on the utilization of remote sensing techniques and Geographical
Read moreQuantifying CaCO3 Microprecipitates Within Developing Surface Mats of Marine Stromatolites Using GIS and Digital Image Analysis
The unique geochemical coupling of organic molecules and mineral CaCO3provides a fluorescence signature detectable using conventional confocal scanning laser microscopy (CSLM). The surface microbial mats of open-water marine stromatolites (Bahamas) exist in a continuum of states ranging from a Type 1 (i.e., nonlithifying) to Type 2 (i.e., lithified micritic laminae present) to Type 3 (i.e., fused grain layer). An approach was developed here, that
Read moreElectronic Health Care Records in Europe: confidentiality issues from an American perspective
The confidentiality and security issues related to the European Electronic Health Care Records have been approached in the United States as well. This paper synthesizes several solutions and comments on these issues from the legal viewpoint in the United States, as well as some preoccupations of the academic world to improve and standardize the quality of the security and confidentiality of data from studies involving human subjects.
Read moreEcology and Orthodox Theology
Ecology, the science that provides the theoretical fundament to perceive and to interpret the environment as a hierarchy of organized and dynamic units with identifiable and quantifiable structural and functional properties, and theology,the science that has the divine perfection as an object of study, describe the same reality of the creation using different languages. This paper attempts to reflect in the specific language of ecology and Christian-Orthodox
Read moreLooking at deterioration of the environment
Ecology, environmentalism, animism, Western and Orthodox Christianity have different views on the relationship between man and nature, on the causes that determined its changes, and on its future This paper aims to present and analyze these views, discuss some of the underlying causes of the continuing environmental deterioration, and propose some possible solutions.
Read moreUsing a Quick-Basic Application Based on the DAC Statistic to Detect Spatial Clusters
Spatial distributions find applications in various fields, such as public health, biology, ecology, geography, economics or sociology. The DAC statistic is the difference between the empirical cumulative distribution of cases and that of non-cases at a particular point. This study uses the longitude and latitude as the coordinates of the homes of mothers in Spartanburg County, SC who gave birth to their babies in 1989 or 1990. A priori, clusters
Read moreThe DAC statistic: properties and use in detection of clusters
Even though its use has been limited, the DAC statistic, defined as the difference between the empirical distribution for the cases and that of the total sample, presents a great potential in detecting spatial clusters. Our previous work focused on examining its sensitivity to the location of origin and orientation of axes, and on its possible role as an instrument to detect clusters. Results indicate that the DAC statistic does not depend on the
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