Analysis of thermal degradation behavior for some hydraulic oils, using FTIR-TGA coupling

The transitions between the vibrational energetic states of atoms represent the infrared absorption spectra, which is a band spectrum over which the transitions between energetic rotational states overlap. One of the most important uses of infrared absorption spectrometry is the identification in quantitative terms of the structure of compounds from a substance, the analytes being either solid, liquid or vaporous. The FTIR-TGA Coupling is a technique that permanently controls the mass loss in a sample, as a function of temperature and time, as well as the identification and recording of various compounds occurring during the combustion process. Research on hydraulic oils has consisted of their analysis using the FTIR-TGA coupling in order to identify flammable substances that can generate explosive events

Assessing the heavy metal pollution level in Jiu Valley by bio-monitoring inferior plants – moss

The analysis of the samples collected from residential areas and the proximity of the industrial areas of Jiu Valley was carried out by means of induced coupled plasma optical emission spectrometry (ICP-OES) after acid processing and mineralization of the samples. The pollution level has increased once with the industrial development and acceleration of urbanization processes in the human society. Of the pollutant-generating substances, heavy metals are of particular importance. The purpose of this paper is to highlight level of pollution by heavy metals using moss (inferior plants) in order to determine the degree of bioaccumulation. From the pollution point of view, zinc, cadmium and lead are of particular relevance, but the effects of other heavy metals have also been studied. The pollution effects last for a long time in waste dumps, areas polluted with heavy metals from fuel combustion processes, fossil fuels a.s.o. The analysis of the samples collected from residential areas and the proximity of the industrial areas of Jiu Valley was carried out by means of induced coupled plasma optical emission spectrometry (ICP-OES) after acid processing and mineralization of the samples

Analysis of thermal degradation behavior for some hydraulic oils, using FTIR-TGA coupling

The transitions between the vibrational energetic states of atoms represent the infrared absorption spectra, which is a band spectrum over which the transitions between energetic rotational states overlap. One of the most important uses of infrared absorption spectrometry is the identification in quantitative terms of the structure of compounds from a substance, the analytes being either solid, liquid or vaporous. The FTIR-TGA Coupling is a technique that permanently controls the mass loss in a sample, as a function of temperature and time, as well as the identification and recording of various compounds occurring during the combustion process. Research on hydraulic oils has consisted of their analysis using the FTIR-TGA coupling in order to identify flammable substances that can generate explosive events

O OR RI IG GI IN NA Investigation of P213S SELL gene polymorphism in type 2 diabetes mellitus and related end stage renal disease. A case-control study

Abstract SELL (L-selectin) is a candidate gene for several complex diseases including diabetes mellitus and renal failure. Our aim was to investigate the involvement of P213S SELL gene polymorphism (rs2229569) in type 2 diabetes mellitus (T2DM) and related end stage renal disease (ESRD). Type 2 diabetes mellitus patients without ESRD (n=250) or with ESRD (n=90), ESRD patients without diabetes (n=119) and sex and age matched healthy subjects (n=459) were analyzed in this study. DNA samples from all these subjects were genotyped for the P213S polymorphism by PCR-RFLP technique. Statistical analysis indicated that SELL P213S genotypes and alleles were similar distributed in the patients and control groups (ORSS=0.37, CI 95%: 0.131>0.372>1.06, p=0.05, Yate's correction p=0.09, for T2DM patients without ESRD, ORSS=2.04, CI 95%: 0.365>2.047>1.465, p=0.4, Yate's correction p=0.67, for T2DM patients with ESRD and ORSS=1, CI95%: 0.198>1>5.057, p=1, Yate's correction p=0.67, for non-diabetic with ESRD patients). Also, no significant differences were noticed when we compared the ESRD subjects with diabetes vs. non-diabetic ones (OR=1.798, CI 95%: 0.392>1.798>8.245, p=0.44, Yate's correction p=0.7). No statistically significant results were found in order to sustain the hypothesis of association between SELL gene P213S polymorphism, type 2 diabetes mellitus and end stage renal disease