25 research outputs found
Biossegurança e odontologia: crenças e atitudes de graduandos sobre o controle da infecção cruzada
Influence of tides and winds on fishing techniques and strategies in the Mamanguape River Estuary, Paraíba State, NE Brazil
1985 primary heating fuel use and switching: Assessment of the market for conservation in the Northwest: Phase 2
This report presents information on the types of primary heating fuels used in residences in the Pacific Northwest region and how the heating fuels affect the level of investment in energy conservation measures (ECMs) by occupants of the residences. The types of heating fuel switching that occurred during the past two years (1983-1985) is also presented. The information was collected from random telephone surveys of households in Idaho, Oregon, Washington, and western Montana. The Pacific Northwest Laboratory (PNL) conducted analyses of the survey results for the Bonneville Power Administration (BPA) to obtain a better understanding of consumer attitudes and behaviors and to facilitate conservation program planning, design, and marketing. This report covers the following hypotheses: (1) there is no relationship between investing in ECMs and the type of primary heating fuel used in a residence; and (2) there is no relationship between the decision to switch to a new primary heating fuel during 1983-1985 and the original type of primary heating fuel used in the residence
Financing residential energy conservation investment in the Northwest, 1985
Pacific Northwest Laboratory (PNL) has analyzed how households in the Pacific Northwest financed their investments in energy conservation measures during the 1983-85 period, how they would finance their likely future investments, and related topics regarding conservation investments and financing. The information was collected through a stratified random telephone survey of householders conducted in October/November 1985 in the Bonneville Power Administration (BPA) service area in Idaho, Oregon, Washington and Western Montana. This information will be used by BPA to facilitate the planning, design, and implementation of relevant conservation programs such as the Residential Weatherization Program, and potential programs of bank and utility loans
Household energy conservation attitudes and behaviors in the Northwest: Tracking changes between 1983 and 1985
Pacific Northwest Laboratory (PNL) has analyzed the changes in consumer energy conservation attitudes and behaviors in the Pacific Northwest between 1983 and 1985. The information was collected through stratified random telephone surveys on 2000 and 1058 households, respectively, for 1983 and 1985 in the Bonneville Power Administration (BPA) service area in Idaho, Oregon, Washington and Western Montana. This report covers four topic areas and tests two hypotheses. The topics are as follows: consumer perceptions and attitudes of energy use and conservation in the home; consumer perceptions of energy institutions and other entities; past and intended conservation actions and investments; and segmentation of homeowners into market prospect groups. The hypotheses tested are as follows: (1) There has been no change in the size and psychographic make-up of the original three market segments found in the 1983 survey analysis; and (2) image profiles of institutions with respect to familiarity, overall impression, and believability as sources of energy conservation information remain unchanged since 1983
1985 consumer segmentation: Assessment of the market for conservation in the Northwest: Phase 2
This report presents information on consumer attitudes toward conservation, past and intended conservation behaviors, and utility-sponsored conservation program participation levels. The information was collected by means of random telephone surveys of households in Idaho, Oregon, Washington, and Western Montana. Pacific Northwest Laboratory (PNL) conducted analyses of the survey results for the Bonneville Power Administration (BPA) to obtain a better understanding of consumer attitudes and behaviors and to facilitate conservation program planning, design, and marketing
Carbon Nanotubes and Algal Polysaccharides To Enhance the Enzymatic Properties of Urease in Lipid Langmuir–Blodgett Films
Algal
polysaccharides (extracellular polysaccharides) and carbon
nanotubes (CNTs) were adsorbed on dioctadecyldimethylammonium bromide
Langmuir monolayers to serve as a matrix for the incorporation of
urease. The physicochemical properties of the supramolecular system
as a monolayer at the air–water interface were investigated
by surface pressure–area isotherms, surface potential–area
isotherms, interfacial shear rheology, vibrational spectroscopy, and
Brewster angle microscopy. The floating monolayers were transferred
to hydrophilic solid supports, quartz, mica, or capacitive electrolyte–insulator–semiconductor
(EIS) devices, through the Langmuir–Blodgett (LB) technique,
forming mixed films, which were investigated by quartz crystal microbalance,
fluorescence spectroscopy, and field emission gun scanning electron
microscopy. The enzyme activity was studied with UV–vis spectroscopy,
and the feasibility of the thin film as a urea sensor was essayed
in an EIS sensor device. The presence of CNT in the enzyme–lipid
LB film not only tuned the catalytic activity of urease but also helped
to conserve its enzyme activity. Viability as a urease sensor was
demonstrated with capacitance–voltage and constant capacitance
measurements, exhibiting regular and distinctive output signals over
all concentrations used in this work. These results are related to
the synergism between the compounds on the active layer, leading to
a surface morphology that allowed fast analyte diffusion owing to
an adequate molecular accommodation, which also preserved the urease
activity. This work demonstrates the feasibility of employing LB films
composed of lipids, CNT, algal polysaccharides, and enzymes as EIS
devices for biosensing applications