BACKGROUND Several epidemiological studies have reported that long-term exposure to fine particulate matter (PM2.5) is associated with higher mortality. Evidence regarding contributions of PM2.5 constituents is inconclusive. OBJECTIVES We assembled a data set of 12.5 million Medicare enrollees (≥ 65 years of age) to determine which PM2.5 constituents are a) associated with mortality controlli...

BACKGROUND Epidemiological studies have demonstrated associations between short-term exposure to PM2.5 and hospital admissions. The chemical composition of particles varies across locations and time periods. Identifying the most harmful constituents and sources is an important health and regulatory concern. OBJECTIVES We examined pollutant sources for associations with risk of hospital admiss...

The peel volatile constituents and juice quality parameters of four tangerine cultivars were investigated in this study. Peel flavor constituents were extracted by using cold-press and eluted by using n-hexane. Then all analyzed by GC-FID and GC-MS. Total soluble solids, total acids, pH value, ascorbic acid as well as density and ash were determined in juice obtained from tangerine cultivars. F...

In this paper I propose a defense of a posteriori materialism. Problems with a posteriori identity materialism are identified, and a materialism based on composition, not identity, is proposed. The main task for such a proposal is to account for the relation between physical and phenomenal properties. Composition does not seem to be fit as a relation between properties, but I offer a peculiar w...

The paper proposes a mathematical method of defining dependency and constituency provided linguistic criteria to characterize the acceptable fragments of an utterance have been put forward. The method can be used to define syntactic structures of sentences, as well as discourse structures for texts or morphematic structures for words.

Propolis (bee glue) is a resinous hive product, collected by bees. It possesses versatile biological activity antibacterial, antiviral, fungicidal, anti­ ulcer, immunostimulating, hypotensive, cytostatic, etc. [1]. The chemical com position of propolis ap­ peared to be very complex at least 156 propolis constituents have been identified so far [2,3]. M ost im portant constituents of propolis ap...

Josep Serra Bonvehí3 and Rossend Escolá Jordàb a Research and Development Department of Nederland, S. A., PO Box 34, 08890 Viladecans, Barcelona, Spain b Agricultural and Food Laboratory, Generalitat of Catalonia, 08348 Cabrils, Barcelona, Spain Z. Naturforsch. 53c, 785-792 (1998); received March 2/June 20, 1998 Cocoa Husk, Mineral Elements, Vitamins, Phytic Acid, Phenolic Constituents Mineral ...