Although the efficacy of computer assisted sperm analysis (CASA) has been demonstrated for use with a variety of species in assessing male reproductive quality as well as the impact of various treatments on sperm motility, many investigations continue to rely on manual analytical methods. CASA has been consistently shown to outperform such methods in terms of reproducibility as well as in the v...

The mobility of Cu, Pb and Zn in harbour sediments was investigated using single, sequential and kinetic extraction techniques. Each type of extraction provides different information on the mobility of these elements in the environment. The single HCl extraction assesses general mobility, the sequential extraction assesses geochemical partitioning and kinetic extraction allows quickly and slowl...

Resident, Department of Neurosurgery, Santa Casa de Belo Horizonte, Belo Horizonte MG, Brazil; Assistant, Department of Neurosurgery, Santa Casa de Belo Horizonte and Faculdade de Ciências Médicas de Minas Gerais, Belo Horizonte MG, Brazil; Assistant, Department of Neurology, Santa Casa de Belo Horizonte, Belo Horizonte MG, Brazil; Assistent I, Department of Psycology, Universidade Federal de M...

A novel two-step sequential extraction has been developed to assess the bioaccessibility of As, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn in airborne particulate matter following inhalation and transport into the human gastrointestinal tract by mucociliary clearance. A new artificial mucus fluid (AMF) was used to determine the bioaccessible potentially toxic element (PTE) fraction in the upper airways,...

In this thesis, we study scalable and general purpose methods for mining frequent sequences that satisfy a given subsequence constraint. Frequent sequence mining is a fundamental task in data mining and has many real-life applications like information extraction, market-basket analysis, web usage mining, or session analysis. Depending on the underlying application, we are generally interested i...

Sunlight provides energy for photosynthesis and help in synthesis of carbohydrates required for the regulation of plant development. Plant scientists are studying the role of light in plant development, in the biogenesis of chloroplast and in signalling between chloroplast and nucleus. The simple carbohydrates produced during photosynthesis are used as energy by plant for biosynthesis of primar...

Keyphrases efficiently summarize a document’s content and are used in various document processing and retrieval tasks. Several unsupervised techniques and classifiers exist for extracting keyphrases from text documents. Most of these methods operate at a phrase-level and rely on part-of-speech (POS) filters for candidate phrase generation. In addition, they do not directly handle keyphrases of ...

OBJECTIVE To investigate DNA fragmentation by using terminal deoxyribonucleotidyl transferase-mediated dUTP nick-end labeling in relation to World Health Organization parameters and computer-aided sperm analysis (CASA) in sperm to determine the possibility of obtaining a correlation among CASA parameters, sperm morphology, and DNA fragmentation. DESIGN Sperm analysis according to World Health...

Because toxicities may differ for Cr(VI) compounds of varying solubility, some countries and organizations have promulgated different occupational exposure limits (OELs) for soluble and insoluble hexavalent chromium (Cr(VI)) compounds, and analytical methods are needed to determine these species in workplace air samples. To address this need, international standard methods ASTM D6832 and ISO 16...