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Remote identification of illegal plantations of Cannabis sativa Linnaeus is an important task for the Brazilian Federal Police. The current analytical methodology is expensive and strongly dependent on the expertise of the forensic investigator. A faster and cheaper methodology based on automatic methods can be useful for the detection and identification of Cannabis sativa L. in a reliable and objective manner. In this work, the high potential of Near Infrared Hyperspectral Imaging (HSI-NIR) combined with machine learning is demonstrated for supervised detection and classification of Cannabis sativa L. This plant, together with other plants commonly found in the surroundings of illegal plantations and soil, were directly collected from an illegal plantation. Due to the high correlation of the NIR spectra, sparse Principal Component Analysis (sPCA) was implemented to select the most important wavelengths for identifying Cannabis sativa L. One class Soft Independent Class Analogy model (SIMCA) was built, considering just the spectral variables selected by sPCA. Sensitivity and specificity values of 89.45% and 97.60% were, respectively, obtained for an external validation set subjected to the s-SIMCA. The results proved the reliability of a methodology based on NIR hyperspectral cameras to detect and identify Cannabis sativa L., with only four spectral bands, showing the potential of this methodology to be implemented in low-cost airborne devices.
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http://dx.doi.org/10.1016/j.saa.2020.118385 | DOI Listing |
J Clin Psychol Med Settings
December 2024
Department of Psychiatry, Center for Health Outcomes and Interdisciplinary Research, Massachusetts General Hospital, 1 Bowdoin Square, Suite 106, Boston, MA, 02114, USA.
Chronic orofacial pain (COFP; i.e., musculoskeletal, neurovascular, or neuropathic pain in the face, mouth, or jaw that lasts for at least 3 months) is prevalent and debilitating.
View Article and Find Full Text PDFMed Cannabis Cannabinoids
November 2024
Faculty of Nursing, Khon Kaen University, Khon Kaen, Thailand.
Introduction: Diabetic peripheral neuropathy (DPN) represents a prevalent neurological complication affecting millions of patients globally. This clinical investigation evaluated the therapeutic efficacy and safety profile of a novel transdermal medical cannabis formulation (THC:CBD:CBN) in treating painful DPN of the lower extremities.
Methods: This phase III, double-blind, placebo-controlled, randomized clinical trial was conducted at Don Chan Hospital, Thailand, enrolling 100 participants over a 12-week intervention period.
Front Psychiatry
December 2024
Center for Alcohol and Addiction Studies, School of Public Health, Brown University, Providence, RI, United States.
Introduction: Rates of prenatal cannabis use (PCU) have increased in recent years. Despite evidence of developmental health consequences to offspring and birthing person, there has been a reduction in the perception of PCU-related harms. Due to the stigma and risk of legal consequences associated with disclosing PCU, individuals are often cautious to seek information from their healthcare providers.
View Article and Find Full Text PDFFront Vet Sci
December 2024
Department of Veterinary Sciences, University of Messina, Messina, Italy.
Cannabidiol (CBD) is a non-psychotropic cannabinoid obtained from hemp ( L.) used for pain management in companion animals including horses. The present study aimed to evaluate the efficacy of cannabidiolic acid (CBDA) and cannabigerol/cannabidiol oil (CBG/CBD) oral administration in alleviating pain in adult horses affected by chronic osteoarthritis (OA).
View Article and Find Full Text PDFHeliyon
December 2024
CBIOS, Universidade Lusófona's Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024, Lisboa, Portugal.
L.-based food supplement products in pharmacies and para pharmacies in Portugal increased by 84 % between 2021 and 2022, arousing consumers' curiosity. However, information about these products is limited, and consumers are not aware of the restrictions in current European regulations.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!