scholarly journals Determination of Fire and Explosion Characteristics of Dust

2016 ◽  
Vol 11 (2) ◽  
pp. 36-42
Author(s):  
Matej Menčík ◽  
Richard Kuracina ◽  
Zuzana Szabová ◽  
Karol Balog
Keyword(s):  
Industrial Production ◽  
Early Identification ◽  
Industrial Dust ◽  
Dust Clouds ◽  
Fire And Explosion ◽  
Identification And Characterization ◽  
Dust Reduction

Abstract The aim of this paper is to approximate danger of dust clouds normally occur by determining their explosion characteristics. Nowadays, dusty environment is phenomenon in the industry. In general, about 70% of dust produced is explosive. Dust reduction in companies is the main purpose of the national and European legislative. Early identification and characterization of dust in companies may reduce the risk of explosion. It could be used to identify hazards in industrial production where an explosive dust is produced. For this purpose several standards for identification and characterization of explosion characteristics of industrial dust are being used.

scholarly journals Emerging behavioral and neuroimaging biomarkers for early and accurate characterization of autism spectrum disorders: a systematic review

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chandrakanta S. Hiremath ◽  
Kommu John Vijay Sagar ◽  
B. K. Yamini ◽  
Akhila S. Girimaji ◽  
Raghavendra Kumar ◽  
...  
Keyword(s):  
Early Identification ◽  
Longitudinal Research ◽  
Pathological Condition ◽  
Neurodevelopmental Disorder ◽  
Behavioral Assessment ◽  
Autism Spectrum ◽  
Quantitative Mri ◽  
Assessment Tools ◽  
Identification And Characterization

AbstractThe possibility of early treatment and a better outcome is the direct product of early identification and characterization of any pathological condition. Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by impairment in social communication, restricted, and repetitive patterns of behavior. In recent times, various tools and methods have been developed for the early identification and characterization of ASD features as early as 6 months of age. Thorough and exhaustive research has been done to identify biomarkers in ASD using noninvasive neuroimaging and various molecular methods. By employing advanced assessment tools such as MRI and behavioral assessment methods for accurate characterization of the ASD features and may facilitate pre-emptive interventional and targeted therapy programs. However, the application of advanced quantitative MRI methods is still confined to investigational/laboratory settings, and the clinical implication of these imaging methods in personalized medicine is still in infancy. Longitudinal research studies in neurodevelopmental disorders are the need of the hour for accurate characterization of brain–behavioral changes that could be monitored over a period of time. These findings would be more reliable and consistent with translating into the clinics. This review article aims to focus on the recent advancement of early biomarkers for the characterization of ASD features at a younger age using behavioral and quantitative MRI methods.

scholarly journals Identification and Characterization of Two Parathyroid Hormone-Like Molecules in Zebrafish

Endocrinology ◽  
2004 ◽  
Vol 145 (4) ◽  
pp. 1634-1639 ◽  
Author(s):  
Robert C. Gensure ◽  
Bhaskar Ponugoti ◽  
Yasemin Gunes ◽  
Madhusudhan R. Papasani ◽  
Beate Lanske ◽  
...  
Keyword(s):  
Takifugu Rubripes ◽  
Evolutionary Divergence ◽  
High Homology ◽  
Genomic Database ◽  
Natural Ligands ◽  
Tuberoinfundibular Peptide ◽  
Pthrp Receptor ◽  
Identification And Characterization

Abstract Zebrafish (Danio rerio) have receptors homologous to the human PTH (hPTH)/PTHrP receptor (PTH1R) and PTH-2 receptor (PTH2R) and an additional receptor (PTH3R) with high homology to the PTH1R. To find natural ligands for zPTH1R and zPTH3R, we searched the zebrafish genomic database and discovered two distinct regions that, when translated (zPTH1 and zPTH2), showed high homology to hPTH. Isolation of cDNAs and determination of the intron/exon boundaries revealed genomic structures which were similar to known PTHs. Peptides consisting of the first 34 amino acids after the pre- and prosequences of the zebrafish PTHs (zPTHs) were synthesized and were shown to be fully active at the hPTH1R. zPTH2(1–34) was, however, approximately 30-fold less potent at the zPTH1R than hPTH(1–34), hPTHrP(1–36), and zPTH1(1–34). When tested with zPTH3R, zPTH1(1–34) and hPTHrP(1–36) showed similar potencies, whereas the potency of zPTH2(1–34) was moderately (3-fold) reduced. To determine whether other fishes have multiple PTHs, we searched the genomic database of the Japanese pufferfish (Takifugu rubripes) and identified zPTH1 and zPTH2 homologs. Phylogenetic analysis showed that PTHs from zebrafish and pufferfish are more closely related to each other than to known mammalian PTH homologs or to PTHrP and tuberoinfundibular peptide of 39 residues. This is consistent with evolution of two teleost PTH-like peptides occurring after the evolutionary divergence between fishes and mammals. Overall, the PTH system appears more complex in fishes than in mammals, providing evidence of continued evolution in nontetrapod species. The availability of multiple forms of fish PTH and their receptors provide additional tools for PTH ligand/receptor structure-function studies.

scholarly journals Direct Identification and Characterization of Phenolic Compounds from Crude Extracts of Buds and Internodes of Grapevine (Vitis vinifera cv Merlot)

2014 ◽  
Vol 9 (11) ◽  
pp. 1934578X1400901
Author(s):  
Said Qsaib ◽  
Nuno Mateus ◽  
Fatima Ez-zohra Ikbal ◽  
Lala Aicha Rifai ◽  
Victor de Freitas ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Vitis Vinifera ◽  
Vitis Vinifera L ◽  
Reverse Phase Hplc ◽  
Direct Identification ◽  
Array Detection ◽  
First Time ◽  
Identification And Characterization

The crude methanol extracts of latent buds and internodes Vitis vinifera L. cv. Merlot were used for the determination of phenolic compounds by a combination of reverse phase HPLC with diode array detection (HPLC-DAD) and mass spectrometry (LC-MS). This method allowed the identification of 9 phenolic compounds without purification or fractionation. These 9 compounds were divided into three groups: procyanidins, flavonols and stilbenes. Detection by HPLC-DAD at different wave lengths of 280 nm to 320 nm, allowed the estimation of concentrations of those compounds. This method permitted, for the first time, both characterization and quantification of polyphenolic compounds in buds of grapevine. Comparison with the results obtained in internodes showed that quercetin, resveratrol tetramer and ε-viniferin had similar levels in buds and internodes while six other compounds identified had higher levels in buds.

Identification and characterization of radioactive ‘hot’ particles in Chernobyl fallout-contaminated soils: the application of two novel approaches

2003 ◽  
Vol 67 (2) ◽  
pp. 183-204 ◽  
Author(s):  
J. A. Entwistle ◽  
A. G. Flowers ◽  
G. Nageldinger ◽  
J. C. Greenwood
Keyword(s):  
Contaminated Soils ◽  
Ecological Impact ◽  
Photographic Film ◽  
Exclusion Zone ◽  
Chernobyl Fallout ◽  
Hot Particles ◽  
Icp Ms ◽  
Identification And Characterization

The Chernobyl accident in 1986 resulted in the widespread identification of the post-accident presence of radioactive (or ‘hot’) particles across large areas of Eastern and Central Europe. Such particles arise from direct deposition and also from condensation and interactions on particle surfaces during and following the deposition of soluble fallout. Identification of the presence and nature of hot particles is necessary in order to determine the long-term ecological impact of radioactive fallout. This paper describes several techniques for the identification and characterization of hot particles in soil samples from Belarus. In addition to new results from the use of gamma spectrometry, we include two novel instrumentation approaches that have been developed and applied to Chernobyl fallout-contaminated soils. The first, ‘differential’ autoradiography, utilizes a photographic film sandwich to characterize the nature of the ionizing radiation emitted from samples. In this paper we show that differential autoradiography can not only identify hot particle presence in soil, but can also determine the dominant radionuclide in that particle. The second approach, sector field ICP-MS (ICP-SFMS), can provide rapid, high-precision determination of the actinides, including the transuranic actinides, that characteristically occur in hot particles originating from weapons fallout or fuel matrices. Here, ICP-SFMS is shown to yield sufficiently low detection limits for plutonium isotopes (with the exception of 238Pu) to enable us to confirm negligible presence of plutonium in areas outside the Chernobyl exclusion zone, but with high levels of fission-product contamination.

Identification and characterization of porcine mannan-binding lectin A (pMBL-A), and determination of serum concentration heritability

2006 ◽  
Vol 58 (2-3) ◽  
pp. 129-137 ◽  
Author(s):  
Helle R. Juul-Madsen ◽  
Thomas Krogh-Meibom ◽  
Mark Henryon ◽  
Nades Palaniyar ◽  
Peter M. H. Heegaard ◽  
...  
Keyword(s):  
Serum Concentration ◽  
Mannan Binding Lectin ◽  
Identification And Characterization ◽  
Binding Lectin
Sign in / Sign up

Export Citation Format

Share Document