Results 101 to 110 of about 42,329 (267)

Examining of Relationships Among Traits Using Correlation, Path and Principal Components Analysis Methods in Turkish Opium Poppy (Papaver somniferum L.) Cultivars

open access: yesJournal of Agricultural Sciences, 2018
Opium poppy is an important medicinal plant because of its very valuable pharmaceutical alkaloids such as morphine, codeine, and papaverine, etc. The research was carried out with the aim to examining the relationships between capsule yield, some other ...
Nimet Kara, Hasan Baydar
doaj   +1 more source

Counterproductive counternarcotic strategies? A study of the effects of opium eradication in the presence of imperfect capital markets and sharecropping arrangements [PDF]

open access: yes
In this paper, we model the economic incentives surrounding opium crop production at farm level in Afghanistan. Specifically, we examine the impact of eradication policies when opium is used as a means of obtaining credit, and when the crops are produced
Andersson, Camilla
core   +1 more source

Experimental Investigation and Characterization of Biodiesel From Aregmone ocheroleuca

open access: yesEnergy Science &Engineering, Volume 13, Issue 8, Page 3979-3997, August 2025.
The experimental investigation and characterization of biodiesel derived from Aregmone ochroleuca, a plant known for its oil‐rich seeds. The production of biodiesel from argemone oil, methanol, and potassium hydroxide catalysis through transesterification methods, and then characterized their properties, like the Effect of Reaction Temperature on ...
Eyob Hailemichael Yimer   +2 more
wiley   +1 more source

Trying to Be All Things to All People: Alternative Development in Afghanistan

open access: yesRevue Internationale de Politique de Développement, 2020
Alternative development has had little success in Afghanistan. Understood and implemented as geographically bounded interventions designed to reduce drug crop cultivation, these projects failed to achieve their objectives throughout the 1990s. Since 2001,
David Mansfield
doaj   +1 more source

Acetylation‐Deacetylation‐Driven Natural Product Biosynthesis

open access: yesChemistryEurope, Volume 3, Issue 4, July 14, 2025.
This review summarizes the role of acetylation‐deacetylation in natural product biosynthesis, including acetylation followed by deacetylation after several biosynthetic steps, acetylation‐mediated rearrangement, acetylation‐triggered elimination, and the acetylation cycle as a regulatory mechanism. These processes are vital for the formation of complex
Huibin Wang, Ikuro Abe
wiley   +1 more source

Literary investigation on the origin of poppy and other narcotics Research Articles

open access: yesJournal of Pharmacopuncture, 2009
Objectives : This study was performed to developing orally administered analgesics and locally injected pharmacopuncture analgesics like opioids. Methods : Literary investigation on the origin of poppy (Papaver somniferum L) and other narcotics was ...
Lim Chung San   +5 more
doaj   +1 more source

History, Cultivation, and Adaptation of Papaver Species Globally

open access: yesTurkish Journal of Agriculture: Food Science and Technology
Türkiye has 27% of the World’s Papaver species in its flora, and 15 of them are endemic. Poppy (Papaver somniferum L.) is the most cultivated and economically significant species of the Papaver genus.
Yasin Özgen, Demet Burucu
doaj   +1 more source

Genetic and Phenotypic Analyses of a Papaver somniferum T-DNA Insertional Mutant with Altered Alkaloid Composition

open access: yesPharmaceuticals, 2012
The in vitro shoot culture of a T-DNA insertional mutant of Papaver somniferum L. established by the infection of Agrobacterium rhizogenes MAFF03-01724 accumulated thebaine instead of morphine as a major opium alkaloid.
Kayo Yoshimatsu   +3 more
doaj   +1 more source

Role of the phloem in the biochemistry and ecophysiology of benzylisoquinoline alkaloid metabolism

open access: yesFrontiers in Plant Science, 2013
Benzylisoquinoline alkaloids (BIAs) are a diverse group of biologically active specialized metabolites produced mainly in four plant families. BIA metabolism is likely of monophyletic origin and involves multiple enzymes yielding structurally diverse ...
Eun-Jeong eLee   +2 more
doaj   +1 more source

Chasing the dragon – an overview of heroin trafficking [PDF]

open access: yes, 2016
There are many problems encountered during the attempt to tackle the heroin trade on a global level. Afghanistan is largely responsible for the production of heroin, providing a global distribution amount of 75%.
Carvetta, CA, O'Hagan, A
core   +1 more source

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