34,666 research outputs found
Measuring Demand Factors Influencing Market Penetration and Buying Frequency for Flowers in the U.S.
floriculture, consumer preferences, ornamentals, horticulture, environmental, Consumer/Household Economics, Demand and Price Analysis,
Holographic photography of high velocity particles
Fourier transform hologram camera increases the velocity range for holography by a factor of 10 to 1000. Two different optical systems, using a triangular arrangement of beam splitters and a mirror to illuminate the object from two directions, are investigated
Brain Drain: The Mere Presence of Oneās Own Smartphone Reduces Available Cognitive Capacity
Our smartphones enableāand encourageāconstant connection to information, entertainment, and
each other. They put the world at our fingertips, and rarely leave our sides. Although these devices have immense potential
to improve welfare, their persistent presence may come at a cognitive cost. In this research, we test the ābrain
drainā hypothesis that the mere presence of oneās own smartphone may occupy limited-capacity cognitive resources,
thereby leaving fewer resources available for other tasks and undercutting cognitive performance. Results from two
experiments indicate that even when people are successful at maintaining sustained attentionāas when avoiding
the temptation to check their phonesāthe mere presence of these devices reduces available cognitive capacity. Moreover,
these cognitive costs are highest for those highest in smartphone dependence. We conclude by discussing the
practical implications of this smartphone-induced brain drain for consumer decision-making and consumer welfare.Marketin
TIME VARYING PARAMETERS IN THE DEMAND FOR HIGH FRUCTOSE CORN SYRUP
Rapid adoption of high fructose corn syrup and the changing demand for HFCS is measured in a time-varying framework. Demand changes are separated into structural and price competitiveness. Tests for parameter stability are made and simulations based on the estimates are used to show the industry dynamics.Demand and Price Analysis,
Feasibility Study of Velocity Synchronized Fourier Transform Hologram Camera System
Velocity synchronized Fourier transform hologram camera syste
Path to the Theoretical Luminosity Precision Requirement for the FCC-ee (and ILC)
We present pathways to the required theoretical precision for the luminosity
targeted by the FCC-ee precision studies. We put the discussion in context by
reviewing briefly the situation at the time of LEP. We then present the current
status and routes to the desired 0.01\% targeted by the FCC-ee (as well as by
the ILC).Comment: 6 pages, 2 tables; talk presented at the International Workshop on
Future Linear Colliders (LCWS2018), Arlington, Texas, 22-26 October 2018.
C18-10-22; typos corrected; misprint correcte
Waterpipe smoking in students: Prevalence, risk factors, symptoms of addiction, and smoke intake. Evidence from one British university
Background: Anecdotal reports suggest waterpipe smoking is becoming common in students in western countries. The aim was to examine prevalence, risk factors, symptoms of addiction, and smoke intake.
Methods: This was a cross-sectional survey of students with subsidiary survey of regular waterpipe user and survey of exhaled carbon monoxide (CO) before and after waterpipe smoking in customers of a waterpipe cafƩ. 937 students of Birmingham University completed the initial survey with a follow up of 21 regular waterpipe smokers. 63 customers of a waterpipe cafƩ near the University completed the study of CO intake.
Results: 355 (37.9%, 95% confidence intervals (CI) 34.8 to 41.1%) students had tried waterpipes,the prevalence of trying rising with duration at University. 75 (8.0%, 95%CI 6.4 to 10.0%) were regular smokers, similar to the prevalence of cigarette smoking (9.4%). Although cigarette smoking was the major risk factor for being a regular waterpipe smoker, odds ratio (95%CI) 2.77 (1.52 to 5.06), 65% of waterpipe smokers did not smoke cigarettes. Seven of 21 (33.3%) regular waterpipe smokers experienced cravings. Nearly all regular waterpipe users thought it less harmful than smoking cigarettes. The mean (standard deviation) rise in CO was 37.4 (25.8)ppm, nearly twice as high as a typical cigarette smoker seeking cessation treatment.
Conclusion: Waterpipe smoking is a common part of student culture in one British university, as in the Middle East and in the United States. It poses a potential threat to public health, with evidence of dependence and high smoke intake
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