scholarly journals Cannabis Glandular Trichomes: A Cellular Metabolite Factory

2021 ◽  
Vol 12 ◽  
Author(s):  
Cailun A. S. Tanney ◽  
Rachel Backer ◽  
Anja Geitmann ◽  
Donald L. Smith

Cannabis has been legalized for recreational use in several countries and medical use is authorized in an expanding list of countries; markets are growing internationally, causing an increase in demand for high quality products with well-defined properties. The key compounds of Cannabis plants are cannabinoids, which are produced by stalked glandular trichomes located on female flowers. These trichomes produce resin that contains cannabinoids, such as tetrahydrocannabinolic acid and cannabidiolic acid, and an array of other secondary metabolites of varying degrees of commercial interest. While growers tend to focus on improving whole flower yields, our understanding of the “goldmines” of the plant – the trichomes – is limited despite their being the true source of revenue for a multi-billion-dollar industry. This review aims to provide an overview of our current understanding of cannabis glandular trichomes and their metabolite products in order to identify current gaps in knowledge and to outline future research directions.

2008 ◽  
Vol 30 (5) ◽  
pp. 541-560 ◽  
Author(s):  
Marc-André K. Lafrenière ◽  
Sophia Jowett ◽  
Robert J. Vallerand ◽  
Eric G. Donahue ◽  
Ross Lorimer

Vallerand et al. (2003) developed a dualistic model of passion, wherein two types of passion are proposed: harmonious (HP) and obsessive (OP) passion that predict adaptive and less adaptive interpersonal outcomes, respectively. In the present research, we were interested in understanding the role of passion in the quality of coach–athlete relationships. Results of Study 1, conducted with athletes (N = 157), revealed that HP positively predicts a high-quality coach–athlete relationship, whereas OP was largely unrelated to such relationships. Study 2 was conducted with coaches (N = 106) and showed that only HP positively predicted the quality of the coach–athlete relationship. Furthermore, these effects were fully mediated by positive emotions. Finally, the quality of the coach–athlete relationship positively predicted coaches’ subjective well-being. Future research directions are discussed in light of the dualistic model of passion.


2017 ◽  
Vol 41 (S1) ◽  
pp. S393-S394
Author(s):  
M. Preve ◽  
S. Casigliani ◽  
M. Godio ◽  
N.E. Suardi ◽  
R. Traber ◽  
...  

IntroductionNovel psychoactive drugs (NPS) has rapidly increase in the last years in the drug market as a recreational use. Fenethylline is a theophylline, an amphetamine-like drug, having stimulant effects similar to those of other amphetamine-type derivatives. Fenethylline was used as medicament for hyperactivity disorders in children, narcolepsy and depression, but it has also been used as a drug of abuse under the common name of ‘captagon’. The purpose of this report is to review the clinical evidence for the potential of abuse of fenethylline. We propose a case report and literature review.MethodWe conducted a systematic review of the literature with the principal database (PubMed, Enbase, PsychInfo) and we present a case report.ResultsThe effects of fenethylline is characterized by euphoria, derealization, autopsychic and somatopsychic depersonalization, hallucination, agitation and decrease of pain perception.Discussion and conclusionThe primary drug market for fenethyline (as captagon) has traditionally been countries located on the Arabian Peninsula but also North Africa since 2013. To our knowledge, there is no report on the recreational use of fenethylline in literature. The clinical features of fenethylline intoxication were also similar to effects from other amphetamine-like drugs. In our case report, dissociative symptoms are the core of fenethylline intoxication. Further research is warranted to replicate our clinical and qualitative observations and, in general, quantitative studies in large samples followed-up over time are needed. Methodological limitations, clinical implications and suggestions for future research directions are considered [1,2].Disclosure of interestThe authors have not supplied their declaration of competing interest.


2019 ◽  
Vol 11 (2) ◽  
Author(s):  
Ioan IANOȘ

Professor Ronan Paddison, co-editor of the Journal of Urban and Regional Analysis (JURA), died suddenly a few months ago on July 8, 2019. He departed at an age when he had sufficient energy to continue his life-long enthusiastic research and editorial duties. The latter included not just JURA, but also the highly regarded Urban Studies. This editorial work not only supported the diffusion of high quality knowledge. Shared and collaborative experiences with journals’ co-editors and contributors were also invaluable in pinpointing future research directions within both the geographical world and wider social or environmental regimes. However, we should not underestimate his on-going dedication to original research and contribution to knowledge.


Forests ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1343
Author(s):  
Yan Ke ◽  
Yuebin Lin ◽  
Jian Liu ◽  
Qingxi Chen ◽  
Baoying Shen ◽  
...  

Treetop walkways are unique trail constructions. Their support structure suspends a walkway platform several meters from the ground, shuttling among the canopies of trees in the forest. Many countries have built canopy trails for forest recreation, tourism, and other uses. In certain cities, the treetop walkway is no longer a single building unit or forest trail in the narrow sense, and is planned as a multi-functional urban public landscape. This study reviews the development of treetop and elevated forest trails, introduces several representative cases, and provides a comprehensive reference point that fills previous research gaps. We also analyze the Fu Forest Trail, the most representative treetop walkway in China through, inter alia, its modular system, elevated structural, and design appearance. We explore the background and application of treetop trails that connect residents and the environment as a multifunctional urban public landscape in China, and related future research directions. We conclude that treetop walkways have many distinct advantages, and are becoming trendy in forest trail development; there is excellent potential to transform them creatively and innovatively into high-quality forest infrastructure or urban public landscape for public benefit.


2018 ◽  
Vol 52 (4) ◽  
pp. 195-207 ◽  
Author(s):  
Sarah N. Douglas ◽  
Denise J. Uitto ◽  
Claudia L. Reinfelds ◽  
Sophia D’Agostino

Paraprofessional training is essential for high quality special education services. Yet, educators may struggle to select appropriate materials for paraprofessional training. A review was conducted of 26 paraprofessional training materials using a rubric designed to evaluate the alignment with federal legislation and professional standards, and use of research-based adult learning methods. Results indicate many training materials aligned with federal legislation, but varied in their content focus, alignment with paraprofessional standards, and use of adult learning methods. Based on results of the review, three paraprofessional training materials reflected high quality training. Features of paraprofessional training materials, recommendations for practice, suggested improvements to training materials, limitations, and future research directions are discussed.


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