Passive sampler phases for pesticides: evaluation of AttractSPE™ SDB-RPS and HLB versus Empore™ SDB-RPS

Characterization and Application of Passive Samplers for Monitoring of Pesticides in Water.

Five different water passive samplers were calibrated under laboratory conditions for measurement of 124 legacy and current used pesticides. This study provides a protocol for the passive sampler preparation, calibration, extraction method and instrumental analysis. Sampling rates (RS) and passive sampler-water partition coefficients (KPW) were calculated for silicone rubber, polar organic chem...

Updated AORN RPs for laser safety.

Necessary Condition for Maximum Usability of Sdb

A statistical database is a database in which only queries of statistical type are allowed, such as SUM, COUNT, MAX, MIN, MEAN. The security problem for a statistical database is to nd suitable control mechanisms so that while statistical information is provided, no sequence of queries is suucient to infer the values of protected elds of individual records. If such an inference is possible we s...

Direct anD inDirect cOsts OF sDB

evaluating the costs of a treatment begs the question: why assess a treatment economically? Professor Guest’s response to this question sums it up well: “there have to be some criteria against which governments decide to allocate limited resources and money is one such criterion.” similarly, tan et al5 comment that economic evaluation “can play a useful role in assisting decision-makers, manage...

PG 1613 + 426 : a new sdB pulsator ⋆

We report the detection of short period oscillations in the hot subdwarf B (sdB) star PG 1613+426 from time-series photometry carried out with the 91-cm Cassegrain telescope of the Catania Astrophysical Observatory. This star, which is brighter than the average of the presently known sdB pulsators, with B = 14.14 mag, has T eff = 34 400 K and log g = 5.97, its position is near the hot end of th...