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Search Results: 1 - 10 of 622 matches for " ?olaja Sr?an "
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Influence of the heat treatment on the color of ground pepper (Capsicum annuum)
Vra?ar Ljubo O.,Tepi? Aleksandra N.,Vuji?i? Biserka L.,olaja Sr?an
Acta Periodica Technologica , 2007, DOI: 10.2298/apt0738053v
Abstract: Red pepper (Capsicum annuum L.) is one of the most important vegetables in the world. The main ground pepper quality attributes are extractable color, surface color, qualitative and quantitative carotenoid content. In this work, the influence of heat treatment on ground pepper quality was investigated. Microbiological status was examined in non-sterilized and sterilized ground pepper. Color changes were assessed by measuring the extractable color (ASTA) and surface color, using a photocolorimeter. The obtained results showed that at the end of experiment, non-sterilized samples had higher color values in comparison to the sterilized ones. Also, color deterioration was heightened at room temperature.
Antimalarial peroxides
DEJAN M. OPSENICA,BOGDAN A. ?OLAJA
Journal of the Serbian Chemical Society , 2009,
Abstract: The problem of endemic malaria continues unabated globally. Malaria affects 40 % of the global population, causing an estimated annual mortality of 1.5–2.7 million people. The World Health Organization (WHO) estimates that 90 % of these deaths occur in sub-Saharan Africa among infants under the age of five. While a vaccine against malaria continues to be elusive, chemotherapy remains the most viable alternative towards treatment of the disease. During last years, the situation has become urgent in many ways, but mainly because of the development of chloroquine-resistant (CQR) strains of Plasmodium falciparum (Pf). The discovery that artemisinin (ART, 1), an active principle of Artemisia annua L., expresses a significant antimalarial activity, especially against CQR strains, opened new approaches for combating malaria. Since the early 1980s, hundreds of semisynthetic and synthetic peroxides have been developed and tested for their antimalarial activity, the results of which were extensively reviewed. In addition, in therapeutic practice, there is no reported case of drug resistance to these antimalarial peroxides. This review summarizes recent achievements in the area of peroxide drug development for malaria chemotherapy.
The effects of inflammatory arthritis on bone remodeling
SR Goldring
Arthritis Research & Therapy , 2005, DOI: 10.1186/ar1518
Abstract:
Positron emission tomography and X-ray computed tomography: tools for mouse phenotyping?
SR Cherry
Breast Cancer Research , 2003, DOI: 10.1186/bcr671
Abstract:
Molecular pathology of breast cancer
SR Lakhani
Breast Cancer Research , 2002, DOI: 10.1186/bcr464
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A clinical approach to dysuria in women
SR Ramphal
Continuing Medical Education , 2004,
Abstract:
Tectonic setting of gabbroic rocks in the western part of the Lupa Gold Field, south-west Tanzania
SR Mnali
Tanzania Journal of Science , 2002,
Abstract: There is a pronounced occurrence of gabbroic rocks in the western part of the Lupa gold field, SW Tanzania. These rocks occur in the peripheral part around the Saza-Chuya granodiorite with which it makes a gradiational, unchilled contact. The rocks have been altered or metamorphosed to low-grade greenschist facies as indicated by the presence of secondary epidote, penninite, chlorite, sericite and calcite. The majority of major-element oxides show scattered variation trends against immobile elements such as Zr, indicating some degree of element mobility during post-crystallization processes of alteration or metamorphism. Major-trace-element data show that the gabbroic rocks in the study area are calc-alkaline. REE patterns show that the rocks are highly evolved with a high (La/Yb)N ratio of about 30 and (La/Sm)N ratios of between 18-40. The highly evolved nature of the studied rocks is shown also by low values of magnesium between 56-62%. The gabbroic rocks in the western part of the Lupa gold field seem to have been formed in the continental arc setting. Tanzanian Journal of Science Vol. 28(1) 2002: 99-113
Assessment of heavy metal pollution in the Lupa gold field, SW Tanzania
SR Mnali
Tanzania Journal of Science , 2001,
Abstract: The concentrations of AS, Cd, Cr, Cu, Hg and Pb were determined in water, stream sediments, soil, and mine tailings from Lupa Gold Field (LGF), SW Tanzania, in order to assess their pollution levels. As, Cd and Cr were determined by automated Graphite Furnace Absorption Spectrophotometry. Cu and Pb were analysed by Air-Acetylene Flame, while Hg was analysed by Cold Vapour Atomic Absorption Spectrophotometry. The mean concentrations obtained were: As: 0.44 ppb (water), 1.2 ppm (sediments), 0.44 ppm (soil) and 5.2 ppm (tailings); Cd: 0.03 ppb (water), 0.03 ppm (sediments), 0.03 ppm (soil) and 0.50 ppm (tailings); Cr: 1.4 ppb (water), 70 ppm (stream sediments), 250 ppm (soil) and 270 ppm (tailings); Cu: 30 ppb (water), 68 ppm (sediments), 66 ppm (soil) and 455 ppm (tailings); Hg: 0.25 ppb (water), 1.1 ppm (sediments), 0.10 ppm (soil) and 8.70 ppm (tailings) and Pb: 0.50 ppb (water), 85 ppm (sediments), 22 ppm (soil) and 275 ppm (tailings). Leaching of As-based mineral flotation reagents as well as the decomposition of accessory As minerals such as arsenopyrite (FeAsS), enargite (Cu3AsS4) and tennantite (Cu12As4S13) most likely contributed to some high As concentrations in the mine tailings. The low Cd content in all samples reflects the low content of sphalerite (in which Cd replaces Zn) typical of the LGF ores. Cromium was low in water, most likely because of its low mobility; it was high in soils and tailings derived from mafic-ultramafic rocks. High Cu levels in tailings came from dissolution of chalcopyrite and bornite. Neutral to alkaline pH conditions (6.5-8.5) of water was most likely responsible for its low Cu levels. Amalgamation of Au concentrate likely introduced Hg into the environment. Dissolution of galena and anglesite was likely the source of Pb into the soils, sediments and tailings. The range of concentrations of the six heavy metals recorded in the Lupa gold field is of great concern to human health. Tanzania Journal of Science Volume 27A (Special Issue) 2001, pp. 15-22
Breast conditions during pregnancy and lactation: An understanding of unique breast conditions associated with pregnancy and lactation is essential for evaluation and management of breast problems in pregnant or lactating women
SR Cacala
Continuing Medical Education , 2010,
Abstract:
Relativism and anthropology
Radovi? Sr?an
Glasnik Etnografskog Instituta SANU , 2006, DOI: 10.2298/gei0654389r
Abstract: This paper focuses on the impact of relativism within anthropology as a discipline. Relativistic conceptions, account for in this analysis, emerged both from philosophy (philosophy of science in particular) and anthropology. These conceptions have influenced the discipline directly, through development of the concept of cultural relativism, and indirectly, through the relativists' approach to the concept of scientific research. The different sources of relativism have shaped several paradigms of culture research, most notably those which accept epistemological cultural relativism. However, normative relativism influenced the discipline more profoundly, and has been present in two separate forms: the first, being more or less consistent with the basic philosophical and anthropological relativistic theses, and the other, basically born out of the general relativistic scheme, implying and in some cases trying to conceptualize the existence of global cultural invariants or cultural universals.
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