The effect of particle size and sintering temperature the mixtures kyanite metallic aluminum related to thermal transformation into primary mullite free silica was studied. In addition, reaction between ?-Al2O3 (in situ produced by oxidation) obtained in cristobalite structure from obtain secondary mullite. powders were milled 0.5, 3, 6, 12 hours then mixed with powder, which previously 3 hours...

The efficiency of the production foundry products depends on reliable operation melting furnace including, therefore, durability its lining. most common material adopted for an acid crucible lining is quartzite, in which during pretreatment (heating to 800 °C followed by holding), a tridymite phase appears that maintains constant volume at 840–1470 long time and provides high 300–350 melts, but...

Widespread intrauterine growth retardation of embryo and fetal (IUGR) in cattle its negative effects on postnatal offspring health threaten the economic sustainability livestock production. IUGR calves often exhibit birth weight deficits, early death, metabolic abnormalities, low rate, poor feed utilization. Effective correction these disorders is impossible without a detailed study causes, mec...

Kadam (Neolamarckia cadamba (Roxb.) is an evergreen tropical tree widely grown in Asia, particularly India. Neolamarckia commonly known as kadam, or burflower tree. The roots, leaves, barks, and fruits of N. possess medicinal properties are used the pharmaceutical industry. Fruit peels main waste may contain various biologically active compounds. However, no prior knowledge about therapeutic co...

The research aims to study the content of organic matter in typical chernozem, its distribution soil profile under herbaceous and wooden phytocenoses. Organic plays a key role functioning soils their stable performance ecological functions, including – protection function. This is particularly relevant growing urbanization. analysis includes 40 full-profile sections migration-segregated chernoz...

Introduction. In modern pharmacology, more and widely used molecular complexes (MC) based on donor-acceptor or, weaker, intermolecular interactions, to stabilize dosage forms in the composition of pharmaceutical substances or their targeted delivery. This trend is actively developing, because molecules forming MK, which has a certain spatial structure, are preserved can be released unchanged. T...

The present study reports the development and validation of a microbiological assay. To assess this methodology, method was developed validated for quantification CEF by high performance liquid chromatography (HPLC). microbial assay diffusion in 3x3 cylinder agar presented showed satisfactory results as to specificity, linearity range 2.0 - 8.0 ?g.mL-1, precision (109.42 %), accuracy (102.3 rob...

Aim of the study: to identify mutual interaction between reaction a moving object with functional state central nervous system and kinematic-dynamic parameters complex coordination movement. Materials methods: 9 elite alpine skiers were participated in this study. Visual-motor variables assessed by computer for psychophysiological testing NS-Psychotest (Neurosoft, Russia). Dynamic movement duri...

background and aim(s): since it is possible for carbamide peroxide (cp) bleaching agent to contact with amalgam restorations in the oral cavity, the present in vitro study evaluated the amount of dissolved mercury released from amalgam restorations with various percentages of silver content subsequent to the use of 15% cp. materials and methods: thirty ana 2000 amalgam disks with 43.1% silver c...