Results 1 to 10 of about 1,003,271 (240)

Exploration and exploitation in the macrohistory of the pre-Hispanic Pueblo Southwest

Science Advances, 2016
Climate change can rapidly undermine ritual mechanisms that enhance social consensus, as shown for the Pueblo Southwest. Cycles of demographic and organizational change are well documented in Neolithic societies, but the social and ecological processes ...
R Kyle Bocinsky, Johnathan Rush, Keith W Kintigh   +2 more
exaly   +2 more sources

Oral cannabidiol did not impair learning and memory in healthy adults [PDF]

Journal of Cannabis Research
Background The effect of oral Cannabidiol (CBD) on interference during learning and memory (L&M) in healthy human volunteers has not been studied. Method A two-arm crossover, randomized, double-blind, placebo-controlled trial was conducted at Colorado ...
Hanna H. Gebregzi, Joanna S. Zeiger, Jeffrey P. Smith, Libby Stuyt, Luann Cullen, Jim Carsella, Daniel C. Rogers, Jordan Lafebre, Jennah Knalfec, Alfredo Vargas, Moussa M. Diawara   +10 more
doaj   +2 more sources

Elevated relative humidity significantly decreases cannabinoid concentrations while delaying flowering development in Cannabis sativa L. [PDF]

Frontiers in Plant Science
IntroductionRelative humidity (RH) is critical for regulating transpiration, plant morphology, and the biosynthesis of secondary metabolites in crops. However, its specific impacts on cannabis (Cannabis sativa L.) genotypes, especially concerning optimal
Ingrid Carolina Corredor-Perilla, Tae-Hyung Kwon, Sang-Hyuck Park   +2 more
doaj   +2 more sources

Sugar-sweetened beverages and water intake among Indigenous youth in the United States and Canada: a scoping review of interventions [PDF]

International Journal of Circumpolar Health
The objectives of the scoping review were to: (1) conduct a systematic search for published literature focused on American Indian/Alaskan Native/Indigenous (AI/AN/I) youth, (2) identify current interventions that are focused on reducing sugar-sweetened ...
Renée Goldtooth-Halwood, Allen M. Mathende, Carleigh West, Ryan Arkie, Deborah Jean McClelland, Emily Haozous   +5 more
doaj   +2 more sources

Comparison of decarboxylation rates of acidic cannabinoids between secretory cavity contents and air-dried inflorescence extracts in Cannabis sativa cv. ‘Cherry Wine’ [PDF]

Scientific Reports
Studies with secretory cavity contents and air-dried inflorescence extracts of the CBD-rich hemp strain, Cannabis sativa cv. ‘Cherry Wine’, were conducted to compare the decarboxylation rates of acidic cannabinoids between two groups.
Eun-Soo Kim, Sang-Hyuck Park, Chad A. Kinney, Kenneth J. Olejar, Ingrid Carolina Corredor-Perilla   +4 more
doaj   +2 more sources

Thermo-chemical conversion kinetics of cannabinoid acids in hemp (Cannabis sativa L.) using pressurized liquid extraction [PDF]

Journal of Cannabis Research
Cannabinoid decarboxylation via thermo-chemical conversion has the potential to reduce the cannabinoid degradation and evaporation due to short reaction time and use of water as the solvent.
Urvashi, Joon-Hee Han, Min Hong, Tae-Hyung Kwon, Melvin Druelinger, Sang-Hyuck Park, Chad A. Kinney, Kenneth J. Olejar   +7 more
doaj   +2 more sources

Colorectal Cancer Screening Among Adults in Zuni Pueblo: Factors Associated with FOBT and Colonoscopy Utilization

Journal of community health, 2023
Although strategies to mitigate barriers to colorectal cancer (CRC) screening have proven successful in some parts of the US, few of these strategies have been studied in rural, American Indian communities that may exhibit unique culturally driven ...
Nicholas Edwardson, K. Cartwright, Judith N. Sheche, V. Pankratz, M. Kosich, D. Kanda, Samantha Leekity, Shiraz I Mishra   +7 more
semanticscholar   +1 more source

Loss of resilience preceded transformations of pre-Hispanic Pueblo societies

Proceedings of the National Academy of Sciences of the United States of America, 2021
Significance Collapse of civilizations remains one of the most enigmatic phenomena in human history. In this paper we provide quantitative evidence that loss of resilience systematically preceded collapses.
M. Scheffer, E. V. van Nes, Darcy Bird, R. Kyle Bocinsky, Timothy A. Kohler   +4 more
semanticscholar   +1 more source

An Efficient Wildfire Detection System for AI-Embedded Applications Using Satellite Imagery

Fire, 2023
Wildfire risk has globally increased during the past few years due to several factors. An efficient and fast response to wildfires is extremely important to reduce the damaging effect on humans and wildlife.
George L. James, Ryeim B. Ansaf, Sanaa S. Al Samahi, Rebecca D. Parker, Joshua M. Cutler, Rhode V. Gachette, Bahaa I. Ansaf   +6 more
doaj   +1 more source

Industry-Based Misconceptions Regarding Cross-Pollination of Cannabis spp.

Frontiers in Plant Science, 2022
Cross-pollination of commercial crops has been an ongoing issue in many species. Cannabis spp. encompasses the classifications of marijuana [high in Δ9-tetrahydrocannabinol (THC)] and hemp (below 0.3% THC).
Kenneth J. Olejar, Sang-Hyuck Park
doaj   +1 more source