Th4 disc6very d polychlo atecl b/iphe s. (PCBs in ishfrom the Baltle Sea attractedX widesp rad attention mong scie *ists. Prior to that e\ent in 1966 e many fo lations of PCBs some \210 ioers are eoretically XA glance at the table ocontents for the first possib eWwrethought\to be used argely in iss of Environmental lth Perspectives controll d or c4osed sys \ms' That thy were giv sthe reader som...

During the state of active sleep (AS), Clarke's column dorsal spinocerebellar tract (DSCT) neurons undergo a marked reduction in their spontaneous and excitatory amino acid (EAA)-evoked responses. The present study was performed to examine the magnitude, consistency of AS-specific suppression, and potential role of classical inhibitory amino acids GABA and glycine (GLY) in mediating this phenom...

A dwarf strain of Staphylococcus aureus was isolated in pure culture from styes on the eyelid of a young woman. Incubation of pus cultured on horse blood agar in 5% CO2 yielded a typical golden staphylococcus, coagulase and catalase positive and penicillin sensitive, but on duplicate plates in air the growth was of tiny white colonies only 0.25 mm. in diameter. These were penicillinsensitive Gr...

To the Editor: Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA), which carries genes for Panton-Valentine leukocidin (PVL), has become a major concern worldwide (1–3). CA-MRSA is mainly associated with skin and soft tissue infections in young, otherwise healthy, persons in the community (3) and also with life-threatening sepsis and community-acquired pneumonia (preceded ...

A simple algorithm is presented for the fast and fully automatic removal of peak shifts in large spectral data sets. It is able to remove peak shifts exceeding the discrete spectral resolution. The algorithm has been applied to Raman spectra of Ž . Ž . three solution copolymerizations of styrene Sty and butyl acrylate BA performed on three separate days. Small Raman peak shifts, smaller than th...

Two-step reversible addition-fragmentation chain transfer (RAFT) polymerization and two subsequent postpolymerization modification steps afforded well-defined ABA triblock copolymers featuring mechanically reinforcing polystyrene outer blocks and 1-methylimidazole-neutralized poly(acrylic acid)-based central blocks. Size exclusion chromatography and (1)H NMR spectroscopy confirmed predictable m...

Improved production costs will accelerate commercialization of polyhydroxyalkanoate (PHA) polymer and PHA-based products. Plant oils are considered favorable feedstocks, due to their high carbon content and relatively low price compared to sugars and other refined carbon feedstocks. Different PHA production strategies were compared using a recombinant strain of Ralstonia eutropha that produces ...

Three-dimensional (3D) cell culture is regarded as a more physiologically relevant method of growing cells in the laboratory compared to traditional monolayer cultures. Recently, the application of polystyrene-based scaffolds produced using polyHIPE technology (porous polymers derived from high internal phase emulsions) for routine 3D cell culture applications has generated very promising resul...

The chromosomal region of Pseudomonas sp. strain Y2 involved in the conversion of styrene to phenylacetate (upper catabolic pathway) has been cloned and sequenced. Four catabolic genes, styABCD, and two regulatory genes, stySR, were identified. This gene cluster when transferred to Escherichia coli W confers to this phenylacetate-degrading host the ability to grow on styrene as the sole carbon ...

Classic Kaposi’s disease is a multifocal and proliferative disease with a double vascular and cellular fibroblastic component and with a cutaneous and visceral expression. We report the case of a 70-year old woman having erythematous lesions on both upper eyelids impairing visual acuity since 6 months. Clinical examination showed 2 purplish erythematous nodules on the free edge of both upper ey...