This article compares two episodes of technology transfer in the 1890s: the movement of bright tobacco production technology to south-central Africa with the spread of the crop to eastern North Carolina and South Carolina. It finds similarities in the people who introduced the crop, but significant differences in the methods used to produce it. This is troubling because the type is defined by the cultivation and especially the curing techniques used to produce it; it is also often described in the historical literature as "Virginia tobacco," even when grown elsewhere. the technological differences are the product of different environments, which include not only the climate but also many elements of the technological system beyond immediate human control: the availability and organization of labor, differences in market structures and marketing institutions, and the government incentives provided to buyers. Therefore, this essay takes as its subject the paradox inherent in the official classification of tobacco types regulated by the USDA and argues that varietal types represent a form of market regulation disguised as botanical taxonomy.
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http://dx.doi.org/10.3098/ah.2008.82.2.220 | DOI Listing |
Tob Control
November 2024
Health Behavior and Health Promotion, The Ohio State University College of Public Health, Columbus, Ohio, USA.
Background: Lesbian, gay, bisexual, transgender and queer (LGBTQ+) young adults (YA) experience disparities in nicotine and tobacco use. Mass-reach health communications can prevent nicotine and tobacco initiation and progression, but LGBTQ+adults report low engagement. Although cultural targeting (CT) could reach LGBTQ+YA, we know little about the strategies that resonate with this population.
View Article and Find Full Text PDFDetarium microcarpum, is a species confined to drier regions of west and central Africa used to treat various diseases including cancer. Phytochemical screening revealed the presence of secondary metabolites (alkaloids) The aim of this work is to study the effect of total aqueous extracts and alkaloid fractions from D. microcarpum leaves, bark and roots on Nicotiana tabacum L.
View Article and Find Full Text PDFFront Plant Sci
September 2024
Department of Agronomy, Iowa State University, Ames, IA, United States.
The reporter system has demonstrated great potential as a visible marker to monitor gene expression in both transiently and stably transformed plant tissues. Ectopic expression of the reporter leads to bright red pigmentation in plant tissues that do not naturally accumulate betalain. Unlike traditional visual markers such as β-glucuronidase (GUS), luciferase (LUC), and various fluorescent proteins, the reporter system does not require sample sacrifice or special equipment for visualizing the gene expression.
View Article and Find Full Text PDFInt J Biol Macromol
November 2024
Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China. Electronic address:
Talanta
January 2025
Engineering Research Center for Nanophotonics and Advanced Instrument of Ministry of Education, Key Laboratory of Polar Materials and Devices (Ministry of Education), School of Physics and Electronic Science, East China Normal University, Shanghai, 201100, China. Electronic address:
Eco-friendly lead-free halide perovskites have emerged as promising materials for multiple applications due to their unique optoelectronic properties. In this work, we investigate the ammonia (NH)-sensitive CsCuI film for its potential in NH sensor and stimuli-responsive fluorescence anti-counterfeiting. CsCuI-based NH sensor demonstrates a high response to NH (△R/R = 1.
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