Studying examinations

LB Films of Polymeric Amphiphile. Since the first successful deposition of a polymeric LB film (61), there have been a large number of studies examining different stmctural parameters on the transferabiHty and stabiHty of the polymeric LB films (4). One interesting idea for polymers for LB films is the use of a spacer group (mosdy hydrophilic) to decouple the motion of the polymer from that of the Hpid membrane (62,63). Monolayers from a poljmier (10) having hydrophilic phosphate groups and a tetraethylene oxide spacer were used to link a glycerol diether to the polymer chain (63). 

ACOCH2CCI3, pyridine, porcine pancreatic lipase, 85% yield.These studies examined the selective acylation of carbohydrates. Mannose is acy-lated at the 6-position in 85% yield in one example. 

A benchmark study examined the difficulty in reproducing QRA resLilts. Several expert teams were given identical systems to analyze using common techniques and a common database. The analysts were initially given total latitude concerning necessary assumptions, events to consider, data, and so forth. Figure 15 illustrates the results of the... 

Over the years there have been several studies examining electron-curable adhesives [9-12]. Off-the-shelf acrylate adhesives were the primary focus of the studies. These adhesives, that have potential use for the repair of advanced composites using high-energy electron accelerators, offer several advantages over conventional repair systems, including [6] ... 

Global warming would also be expected to influence things such as snowfall, snow depth, and snow coverage (or extent), but studies examining changes... 

ANSI/ASHRAE Standard 15-1994, Safety Code for Mechanical Refrigeration, should be studied, examined, and complied with by the design engineer. 

Despite recent advances in understanding the neuropharmacological basis of inhalant dependence, there are no published studies examining the effects of potentially efficacious medications in the treatment of this condition. In the following sections, we discuss psychopharmacological agents that, because of their known effects on the neurotransmitter systems that mediate inhalants reinforcing effects, may assist inhalant abusers achieve abstinence. 

Carroll et al. (2004) conducted another study examining psychotherapy and disulfiram treatment for cocaine dependence. In this randomi2ed, doubleblind, placebo-controlled study, patients (iV=121) were assigned to one of four conditions 1) disulfiram plus CBT 2) disulfiram plus interpersonal therapy (IPT), which addressed adherence to a medical model of psychiatric problems, interpersonal functioning, and supportive therapeutic exploration 3) placebo plus CBT or 4) placebo plus IPT. The patients who received disulfiram reduced their cocaine use, relative to those who received placebo, and the patients who received CBT reduced their cocaine use, relative to those who received IPT. Cocaine abstinence among the patients who received CBT plus placebo was not statistically different from that of the patients who re-... 

Arakawa Wada (1993) dosed rats with mono-methyltin trichloride or dimethyltin dichloride for 10 days at 5 mg/kg body weight per day and reported no effects on thymus weight this is the only study examining immunotoxic end-points for the methyltins. 

This may be due, in part, to the limited information on toxic effects associated with such exposures. If additional information becomes available indicating adverse health effects of long-term exposures, then studies examining methods for mitigating the effects of such exposures would become a data need. 

Photolysis studies of methyl parathion have been reported. A study examining the photodegradation of methyl parathion in river and seawater at variable temperatures showed the half-lives to be 11 and 34 days, respectively (Lartiges and Garrigues 1995). During photolysis in natural water 50% of the... 

Polyethylene terephthalate (PET) is one of the most important commercial thermoplastic polyesters, which has been on the market since 1977 and is widely used in both industrial and household applications. Under specific conditions, plastics can be converted into their primary components for use in other chemical processes by chemical recycling. PET is a thermoplastic, and so recycling by chemical methods, which converts it into primary components, can be achieved. This study examines the optimal routes of the existing chemical methods. For chemical recycling, acidic hydrolysis is used and PET is converted into terephthalic acid (TPA) and... 

Three studies examined the effects of endosulfan exposure on reproductive performance in rats. Consumption of estimated doses of endosulfan of up to 9 and 8 mg/kg/day by male and female rats, respectively, for 2 weeks prior to mating and continued consumption throughout gestation resulted in no adverse effect on mating performance, pregnancy rate, or gestation (Hoechst 1982). This study is limited in that the actual intake of test material was quantified only during the first 2 weeks of exposure, and a relatively small number of animals was used. Similarly, consumption of 5 mg/kg/day by male rats and... 

Again, this aspect of carbon monoxide insertion has not received much attention. Hart-Davis and Mawby (108), in a comparative study, examined the reaction of 7r-C9H7Mo(CO)jMe (VII) with various P donor ligands. They find that, in THF, (VII) undergoes CO insertion, via a solvent-assisted... 

No intermediate oral exposure MRL was derived for trichloroethylene because of a lack of adequately designed studies examining suitable end points. No chronic oral exposure MRL was derived for trichloroethylene because the existing studies had end points that were not suitable for derivation of an MRL. 

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