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"Spear, Terry"
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A seal in wolf's clothing
While her brother is away, Meara Greymere intends to play, but when werewolf and Navy SEAL Finn Emerson arrives at their resort, she's horrified he'll tell her brother what she's up to.
Book
Evaluating the Effectiveness of a Commercial Portable Air Purifier in Homes with Wood Burning Stoves: A Preliminary Study
Wood burning for residential heating is prevalent in the Rocky Mountain regions of the United States. Studies have shown that wood stoves can be a significant source of PM2.5 within homes. In this study, the effectiveness of an electrostatic filter portable air purifier was evaluated (1) in a home where a wood stove was the sole heat source and (2) in a home where a wood stove was used as a supplemental heat source. Particle count concentrations in six particle sizes and particle mass concentrations in two particle sizes were measured for ten 12-hour purifier on and ten purifier off trials in each home. Particle count concentrations were reduced by 61–85 percent. Similar reductions were observed in particle mass concentrations. These findings, although limited to one season, suggest that a portable air purifier may effectively reduce indoor particulate matter concentrations associated with wood combustion during home heating.
Journal Article
The Presence of Asbestos-Contaminated Vermiculite Attic Insulation or Other Asbestos-Containing Materials in Homes and the Potential for Living Space Contamination
Asbestos-contaminated vermiculite attic insulation (VAI) produced from a mine near Libby, Montana, may be present in millions of homes along with other commercial asbestos-containing materials (ACM). The primary goal of the research described here was to develop and test procedures that would allow for the safe and effective weatherization of low-income homes with asbestos. The presence of asbestos insulation was confirmed by bulk sampling of the suspect asbestos material. The homes were then tested for the presence of asbestos fibers in the living spaces. All 40 homes containing VAI revealed the presence of amphibole asbestos in bulk samples. Asbestos (primarily chrysotile) was confirmed in bulk samples of ACM collected from 18 homes. Amphibole asbestos was detected in the living space of 12 (26%) homes, while chrysotile asbestos was detected in the living space of 45 (98%) homes. These results suggest that asbestos sources in homes can contribute to living space contamination.
Journal Article
Chemical Speciation of Lead Dust Associated with Primary Lead Smelting
The research presented in this article assessed geochemical factors relating to dust produced during primary lead smelting. Bulk dust samples and size-selective airborne dust samples were collected from four areas of a primary lead smelter and analyzed by X-ray diffraction and sequential chemical extraction. X-ray diffraction showed that the smelter dusts were composed primarily of sulfides, oxides, sulfates, and silicates of metal ores, with galena being the primary dust component. Sequential extraction revealed the solubility of lead compounds at less than 7% in the exchangeable and mildly acidic steps for the bulk dusts collected from four smelter areas. The later steps of the extraction procedure were more effective in dissolving the lead compounds associated with the bulk dust samples, with 43%, 26%, and 8% of the total lead, in the ore storage, sinter, and blast/dross smelter areas, respectively, being extracted in the residual step. Sequential extraction of coarse airborne dust samples from the ore storage and sinter plant showed that 1.2% and 4.1% of the total lead, respectively, was exchangeable. The finer particle size fractions from these areas of the smelter showed higher percentages of exchangeable lead. Of the course airborne dust from the blast/dross furnace processes, 65% of the total lead was exchangeable. However, the largest percentage of lead from these areas was associated with the finer particle-size fractions. If lead bioavailability is related to its solubility as determined through sequential extraction, the health hazards associated with lead exposure may be appreciably enhanced in the blast and dross furnace processes.
Journal Article
An Evaluation of Potential Occupational Exposure to Asbestiform Amphiboles near a Former Vermiculite Mine
Amphibole asbestos (AA) has been detected on the surface of tree bark in forests neighboring an abandoned vermiculite mine near Libby, Montana. In the present study, simulations were performed to assess potential AA exposure associated with United States Department of Agriculture Forest Service (FS) occupational activities. Bark samples were collected prior, and personal breathing zone (PBZ) and Tyvek clothing wipe samples were collected during and immediately after trials that simulated FS activities. Transmission electron microscopy (TEM) analyses revealed AA bark concentrations up to 15 million structures per square centimeter (s/cm2). AA was detected in 25% of the PBZ TEM samples. AA was detected on wipe samples collected from all activities evaluated. This research demonstrates the potential for airborne exposure and transport of AA in the Kootenai National Forest. These findings are especially relevant to those that work in the area and to the general public who may conduct recreational activities.
Journal Article
Adaptive coaching : the art and practice of a client-centered approach to performance improvement
Rich in detail from the authors' work with clients in Fortune 500 companies, Adaptive Coaching offers a unique client-centered focus on how people prefer to be coached. In this completely revised second edition, authors Bacon and Voss deliver the tools and techniques coaches need to identify clients' real needs, negotiate expectations, understand and adapt to different coaching style preferences, manage the dialogue and help clients change. The authors identify eight distinct coaching styles-teacher, parent, manager, philosopher, facilitator, counselor, colleague, and mentor. They also include examples of coaching dialogue, and explore in detail the special challenges of coaching across cultures and generations, and of coaching women, minorities, and C-level executives.
eBook
Comparison of Methods for Personal Sampling of Inhalable and Total Lead and Cadmium-Containing Aerosols in a Primary Lead Smelter
It has been proposed that future occupational aerosol exposure standards be based on particle size-selective sampling criteria that more accurately reflect worker exposure. In relation to methods currently used for determining individual workers' lead exposures, the widely used 37-mm, closed-face, plastic sampling cassette is known from laboratory wind tunnel studies to undersample significantly compared with estimations of aerosol actually inhaled, especially for large particles. The present study investigated the degree to which this is borne out in field sampling by using side-by-side sampling in selected work sites in a primary lead smelter. Exposures to \"total\" airborne lead and cadmium as measured using the 37-mm sampler (E
37
) were compared with exposure measurements using the Institute of Occupational Medicine (I0M) personal inhalable aerosol sampler (E
I0M
). There were 166 good sample pairs for lead and 55 for cadmium. The ratio (reflecting the fractional undersampling of the 37-mm sampler, as represented by the ratio E
IOM
/E
37
) was consistently greater than unity, by factors obtained by regression analysis ranging (for different parts of the plant) from 1.39 to 2.14 for lead and 1.29 to 2.12 for cadmium. The factor tended to be greater for parts of the plant characterized by coarser aerosol, consistent with the physical sampling characteristics of the two instruments. This research is important (1) in assessing the impact of implementation of new standards for lead- and cadmium-containing aerosols in the primary lead production industry, and (2) in the development of new occupational exposure limits based on the inhalable aerosol fraction.
Journal Article
Assessment of workers' exposure to lead-containing aerosol
An industrial hygiene study was carried out in a primary lead smelter to better characterize worker exposure to lead. Cadmium exposure was also evaluated through paired sampling techniques. The research involved paired sample comparisons, measurement of lead aerosol size distributions, measurement of effective protection factors (EPF), analysis of lead speciation, and analysis of the air lead-blood lead relationship. For the paired sample comparisons, the IOM sampler consistently collected more aerosol (lead and cadmium) than the 37-mm cassette. Weighted least squares regressions yielded slope values ranging from 1.40 to 2.27 for lead and 1.10 to 2.23 for cadmium. Personal Inhalable Dust Spectrometers (PIDS) samplers showed the highest average inhalable and thoracic lead levels in the sinter plant, and the lowest levels in the ore/mill precesses. The highest percentages of thoracic and respirable lead were seen in the blast furnace process. The EPF study on half-face negative pressure respirators showed geometric EPF means (GM) by process ranging from 1.5 to 9.5, with an overall GM of 3.0 for 52 samples. Approximately 80% of the EPF's were equal to or less than the assigned protection factor of 10. Approximately 40% of the internal respirator samples exceeded the Permissible Exposure Limit (PEL) for lead. Bulk and air samples for lead speciation were collected from four smelter processes and analyzed by a Tessier sequential extraction procedure. Dusts from the ore storage and sinter processes were coarser and reacted later in the extraction steps than the dusts from the blast furnace and dross processes. Dusts from these latter two processes contained a higher percentage of soluble lead oxide, lead sulfate and soluble lead. The air lead-blood lead analysis showed statistically significant relationships between air lead exposures and blood lead (BPb) and zinc protoporphyrin (ZPP), but the models were weak. An analysis of lead aerosol size distribution models with BPb and ZPP by job title significantly improved the prediction models, but the improvement was not consistent across the different smelter processes.
Dissertation
thE MANY FORMS OF MARTIAL ARTS
Spear shares that martial arts gave him confidence when he lacked it. It gave him a skill, a hobby, and a rewarding experience. Mostly, it taught him self-discipline, which has helped him with every aspect of his life.
Magazine Article
UNTANGLING Family Roots
To get started in this interesting hobby yourself, und out the family names as far back as your parents and grandparents remember and strange tidbits of oral history concerning them; then you can do a lot of free research online. Church of Jesus Christ of Latter-day Saints online search: www.familysearch.org Searching family trees online: www.rootsweb.com Ancestry.com 14-day free trial for online censuses: www.census-online.com U.S. free online genealogy for every state in the union: www.usgenweb.com Immigrants online who passed through Ellis Island: www.ellisisland.org Family History Center directory online search for the U.S. and other countries: www.genhomepage.com/FHC/fhc.html
Magazine Article