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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

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Analysis 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

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Using 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

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Reconstruction 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

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Quantifying 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

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Electronic 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.

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Ecology 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

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Looking 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.

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Using 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

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The 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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