4,515 research outputs found
Alien Registration- Gillis, William D. (Weston, Aroostook County)
https://digitalmaine.com/alien_docs/32538/thumbnail.jp
Alien Registration- Gillis, Malcolm D. (Brewer, Penobscot County)
https://digitalmaine.com/alien_docs/11136/thumbnail.jp
Survey of hydrogen production and utilization methods. Volume 1: Executive summary
The use of hydrogen as a synthetic fuel is considered. Processes for the production of hydrogen are described along with the present and future industrial uses of hydrogen as a fuel and as a chemical feedstock. Novel and unconventional hydrogen-production techniques are evaluated, with emphasis placed on thermochemical and electrolytic processes. Potential uses for hydrogen as a fuel in industrial and residential applications are identified and reviewed in the context of anticipated U.S. energy supplies and demands. A detailed plan for the period from 1975 to 1980 prepared for research on and development of hydrogen as an energy carrier is included
Stratospheric constituent measurements using UV solar occultation technique
The photochemistry of the stratospheric ozone layer was studied as the result of predictions that trace amounts of pollutants can significantly affect the layer. One of the key species in the determination of the effects of these pollutants is the OH radical. A balloon flight was made to determine whether data on atmospheric OH could be obtained from lower resolution solar spectra obtained from high altitude during sunset
The Effect of Natural Dissolved Organic Carbon on the Acute Toxicity of Copper to Larval Freshwater Mussels (\u3cem\u3eGlochidia\u3c/em\u3e)
The present study examined the effect of dissolved organic carbon (DOC), both added and inherent, on Cu toxicity in glochidia, the larvae of freshwater mussels. Using incremental additions of natural DOC concentrate and reconstituted water, a series of acute copper toxicity tests were conducted. An increase in DOC from 0.7 to 4.4 mg C/L resulted in a fourfold increase (36–150 μg Cu/L) in the 24-h median effective concentration (EC50) and a significant linear relationship (r2=0.98, p=0.0008) between the DOC concentration and the Cu EC50 of Lampsilis siliquoidea glochidia. The ameliorating effect of added DOC on Cu toxicity was confirmed using a second mussel species, the endangered (in Canada) Lampsilis fasciola. The effect of inherent (i.e., not added) DOC on Cu toxicity was also assessed in eight natural waters (DOC 5–15 mg C/L). These experiments revealed a significant relationship between the EC50 and the concentration of inherent DOC (r2=0.79, p=0.0031) with EC50s ranging from 27 to 111 μg Cu/L. These laboratory tests have demonstrated that DOC provides glochidia with significant protection from acute Cu toxicity. The potential risk that Cu poses to mussel populations was assessed by comparing Cu and DOC concentrations from significant mussel habitats in Ontario to the EC50s. Although overall mean Cu concentration in the mussel’s habitat was well below the acutely toxic level given the concentration of DOC, episodic Cu releases in low DOC waters may be a concern for the recovery of endangered freshwater mussels. The results are examined in the context of current Cu water quality regulations including the U.S. Environmental Protection Agency’s (U.S. EPA) biotic ligand model
The waiting time paradox: population based retrospective study of treatment delay and survival of women with endometrial cancer in Scotland
No abstract available
A Highly Ca2+-sensitive Pool of Granules Is Regulated by Glucose and Protein Kinases in Insulin-secreting INS-1 Cells
We have used membrane capacitance measurements and carbon-fiber amperometry to assay exocytosis triggered by photorelease of caged Ca2+ to directly measure the Ca2+ sensitivity of exocytosis from the INS-1 insulin-secreting cell line. We find heterogeneity of the Ca2+ sensitivity of release in that a small proportion of granules makes up a highly Ca2+-sensitive pool (HCSP), whereas the bulk of granules have a lower sensitivity to Ca2+. A substantial HCSP remains after brief membrane depolarization, suggesting that the majority of granules with high sensitivity to Ca2+ are not located close to Ca2+ channels. The HCSP is enhanced in size by glucose, cAMP, and a phorbol ester, whereas the Ca2+-sensitive rate constant of exocytosis from the HCSP is unaffected by cAMP and phorbol ester. The effects of cAMP and phorbol ester on the HCSP are mediated by PKA and PKC, respectively, because they can be blocked with specific protein kinase inhibitors. The size of the HCSP can be enhanced by glucose even in the presence of high concentrations of phorbol ester or cAMP, suggesting that glucose can increase granule pool sizes independently of activation of PKA or PKC. The effects of PKA and PKC on the size of the HCSP are not additive, suggesting they converge on a common mechanism. Carbon-fiber amperometry was used to assay quantal exocytosis of serotonin (5-HT) from insulin-containing granules following preincubation of INS-1 cells with 5-HT and a precursor. The amount or kinetics of release of 5-HT from each granule is not significantly different between granules with higher or lower sensitivity to Ca2+, suggesting that granules in these two pools do not differ in morphology or fusion kinetics. We conclude that glucose and second messengers can modulate insulin release triggered by a high-affinity Ca2+ sensor that is poised to respond to modest, global elevations of [Ca2+]i
How Customer Engagement and Customer Participation Translate Across High-Involvement Purchases (Like Higher Education)
Previous research suggested that customer participation resulted in greater customer satisfaction for the service provider. Specifically, earlier research differentiated Service Customer Engagement (CE) from Service Customer Participation (CP), where the former was ideation and the latter was practical application/execution. In other words, CE was more psychological, where customers think, feel, and trust. Conversely, CP was more behavioral, or physical, where customers act and do.
The point of this research is to translate previous learning to other high-involvement purchases. Research indicates that services high in credence, high contact, as well as high-involvement (Sharma and Patterson 1999) seem to be particularly relevant and responsive to customer participation and customer co-production of value (Plé, Lecocq, and Angot, 2010). This study works to translate learning from the service industry to higher education where the professor is service provider and the student is customer/co-producer. Three propositions are posited. Conclusions and future research are also discussed
- …