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Publicatii proprii
Multivariate ratio analysis reveals Trigonoderus pedicellaris Thomson (Hymenoptera, Chalcidoidea, Pteromalidae) as a valid species
We demonstrate by multivariate ratio analysis (MRA) the validity of two female colour morphs as separate species in what was previously regarded as a single species, Trigonoderus cyanescens (Förster, 1841) (Hymenoptera: Pteromalidae). As a result, T. pedicellaris Thomson, 1878 stat.r., is resurrected from synonymy under T. cyanescens and T. filatus binubilatus Erdos, 1960 syn.n. is synonymized with T. cyanescens. More than 20 characters were measured
Read moreObservation, research and natural sciences as part of the medical education. The historical context.
The relationship between natural sciences and medicine has been a great deal closer throughout the history of medicine in Transylvania than it is nowadays. The physicians of the second half of the eighteenth century were accustomed to analyse the composition of mineral waters, to hike along the Carpathian Mountains, to collect botanical and mineral rarities and send them to the nearest gymnasium in order to be studied. The interdisciplinarity, the
Read moreOn nonlinear parametric variational inequalities
In this paper a family of nonlinear variational inequalities governed by pseudomonotone maps depending on a parameter is considered and the behavior of their solutions is studied. The main result gives sufficient conditions for the weak closedness of the solution map defined on the set of parameters.
Read moreLand-surface segmentation to delineate elementary forms from Digital Elevation Models
In this paper, we introduce an algorithm to delineate elementary forms on Digital Elevation Models (DEMs). Elementary forms are defined by constant values of fundamental morphometric properties and limited by discontinuities of these properties. A multiresolution segmentation technique was customized to partition the layers of altitude derivatives into homogeneous divisions through a self-scalable procedure, which reveals the pattern encoded within
Read moreLand-Surface Segmentation as sampling framework for soil mapping
Current sampling methods require a large number of samples to account for spatial variation of environmental covariates, which often conflicts the available financial resources. Thus, efficient sampling strategies are desirable. The aim of this study was to evaluate the potential of land-surface segmentation in stratifying a landscape into homogeneous areas, which can be used as support in optimizing soil sampling. The experiments were carried out
Read morePeroxynitrite and Nitroxidative Stress: Detection Probes and Micro-Sensors. A Case of a Nanostructured Catalytic Film.
Peroxynitrite, the primary product of the reaction of superoxide ion and nitric oxide, emerged as an important species with profound biological roles. Relatively speaking, it is a new member of the nitroxidative array of reactive metabolites, and details of its actions, impact on biological systems in health and disease states are still accumulating. It has already been linked to a host of pathological conditions. At the same time, its cytoprotective
Read morePeroxynitrite activity of hemin-functionalized reduced graphene oxide.
Conducting interfaces modified with reduced graphene oxide (rGO) have shown improved electrochemical response for different analytes. The efficient formation of functionalized rGO based materials is thus of current interest for the development of sensitive and selective biosensors. Herein, we report a simple and environmentally friendly method for the formation of a hemin-functionalized rGO hybrid nanomaterial that exhibits remarkable sensitivity
Read morePolymerized hemin as an electrocatalytic platform for peroxynitrite’s oxidation and detection.
Peroxynitrite (ONOO-) constitutes a major cytotoxic agent, implicated in a host of pathophysiological conditions, thereby stimulating a tremendous interest in evaluating its role as an oxidant in vivo. Some of the detection methods for peroxynitrite include oxidation of fluorescent probes, EPR spectroscopy, chemiluminescence, immunohistochemistry, and probe nitration; however, these are more difficult to apply for real-time quantification due to
Read more„Detection Challenges in Clinical Diagnostics” Book
"Detection Challenges in Clinical Diagnostics" Editors: Pankaj Vadgama, Serban Peteu ISBN: 978-1-84973-612-1, Copyright: 2013 Royal Society of Chemistry, Cambridge, CB4 0WF, UK. Book Synopsis: There are many remaining challenges impeding future progress in field of Clinical Diagnostics. This book presents a technical assessment and vision of clinical leaders, scoping the clinical and other diagnostic needs and the bottle-necks in their cognate fields.
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