Workers self-reported

During the first five years post 9/11/01, high rates of upper and lower respiratory irritant symptoms, e.g., primarily cough, were described in at least seven WTC rescue/recovery worker groups (Table 1) (1). In 13,854 previously healthy, exposure-stratified FDNY rescue workers, self-reported daily cough was... 

On a side note, Ouskova and co-workers also reported that the composite of magnetic /i-FejOs nanorods in 5CB showed lower threshold voltages than pure 5CB, and that the sensitivity of the nematic liquid crystal to external magnetic fields was increased in the presence of such magnetic nanorods [451]. Finally, several groups interested in the macroscopic organization and orientation of nanorods also reported on the formation of a lyotropic liquid crystal phase induced by the self-assembly of polymer-coated semiconductor nanorods [453—457], which might be used to improve the device performance, for example, of solar cells. 

Gastrointestinal Effects. Earlier studies of individuals with exposure to substances contaminated with 2,3,7,8-TCDD found significant elevations in self-reported ulcers (Bond et al. 1983 Suskind and Hertzberg 1984), but a study of Vietnam veterans (USAF 1991) failed to find such effects. A more recent study evaluated the gastrointestinal effects of exposure to substances contaminated with 2,3,7,8-TCDD in an occupational cohort (Calvert et al. 1992). More than 15 years earlier, the workers were employed in the manufacture of trichlorophenol and its derivatives at 2 chemical plants. A total of 281 workers participated in the medical study the control group consisted of 260 unexposed subjects who lived in the same communities as the workers. The participants underwent a comprehensive physical examination of the abdomen and rectum. The mean serum 2,3,7,8-TCDD level (on a lipid basis) for the workers was 220 ppt and was found to be highly correlated with years of exposure to 2,3,7,8-TCDD-contaminated substances controls had a mean serum 2,3,7,8-TCDD concentration of 7 ppt. At the time of examination, the workers were not found to be at increased risk for any gastrointestinal diseases. Moreover, neither... 

TCDD found significant elevations in self-reported ulcers (Bond et al. 1983 Suskind and Hertzberg 1984), but a study of Vietnam veterans (USAF 1991) failed to find such effect. A more recent cross-sectional medical study of workers employed more than 15 years earlier in the production of... 

Haino and co-workers have reported the synthesis of a self-assembling dimeric capsule via metal-coordination utilizing two octadentate resorcin[4]arene cavitands possessing four bipyridyl groups (13) which complex four silver cations (Ag+) in a tetrahedral fashion (Fig. 4) [46, 47]. A detailed computational study of the dimeric metallo-capsule 14 revealed a large and elaborate three-dimensional inner capsular... 

In 1994, Hanessian and co-workers [50] reported the first examples of metal-free three-dimensional triple-stranded helicates through spontaneous self-assembly of chiral C2-symmetrical diols and chiral C2-symmetrical diamines. The initial observation resulted from the utilization of enantiopure C2-symmetrical vicinal trans-1,2-diaminocyclohexane [51,52] as ligands in the asymmetric dihydroxylations of olefins [53] and as reagents for asymmetric synthesis [54], When equimolar amounts of (5,5)-frfl x-l,2-diaminocyclohexane (28) and its (i ,i )-enantiomer (29) were individually mixed with (5,5)-frfl x-l,2-cyclohexanediol and heated in refluxing benzene, crystals of the respective supraminol complexes 28 30 and 29 30 were formed quantitatively (Scheme 12). This was the physical basis for the separation of racemic diols with tr[Pg.104]

Rosenberg, C.R., M.N. Mulvihill, A. Fischbein and S. Blum (1987). An analysis of the validity of self-reported occupational histories using a cohort of workers exposed to PCBs, Br. J. Ind. Med., 44, 702-710. 

Several different processes have been used, the simplest being by the reaction of hydrogen sulphide with molybdenum pentachloride, or the reaction of sulphur vapour with molybdic oxide or molybdenum metal. The last of these processes has been called the SHS process (Self-Propagating High-Temperature Synthesis) and Russian workers have reported that the product is less contaminated with impurities and has almost identical lubricating properties to natural molybdenum disulphide. The crystal structure is considered in more detail later, but it seems probable that the initial product of syntheses has a disordered... 

Minimal information on the incidence and prevalence of VVC exists. Health care workers are not required to report cases of VVC therefore, estimates are derived from self-reported histories. Epidemiologic data are limited because VVC usually is diagnosed without microscopy and/or cultures, and antifungal nonprescription preparations are available for self-treatment. By 25 years of age, approximately 50% of college women will have had at least one episode of VVC. It is rare before menarche and increases dramatically around 20 years of age, with the peak incidence between 30 and 40 years of age. It is associated with the initial act of sexual intercourse. As many as 75% of women experience one bout of symptomatic VVC in their hfetime. 

Surface wave formation and stationary vortex formation are particularly effective demonstrations of convection enhancement via magnetic fields. A theoretical prediction for aqueous electrolytes was corroborated by experimental evidence produced in a concentric cylindrical cell using copper electrodes and aqueous cupric sulfate electrolytes. Similar observations were reported by Gak and co-workers. Self-sustained oscillations induced by nonhomogeneous periodic and aperiodic magnetic fields have been demonstrated in photographs showing contiguous six- and seven-vortex cluster domains in the experimental apparatus. 

Over the past 10 years, research into water-soluble ferrocene-based polymers and polyelectrolytes has increased.168-175 Vancso and co-workers have reported the preparation and self-assembly of anionic and cationic polyelectrolytes.171,172 Polyanionic, 89, and polycationic, 90, ferrocene-based electrolytes are two examples of such polyelectrolytes.170... 

Nijem K, Kristensen P, Al-Khatib A, et al Prevalence of self-reported health complaints among shoe workers of small workshop exposed to organic solvents in Hehron City, West Bank a cross-sectional survey. Med Lav 91 206-216, 2000 Noraherg J, Arlien-Soborg P Neurotoxic interactions of industrially used ketones. Neurotoxicology 21 409-418, 2000... 

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