Results 71 to 80 of about 3,283 (227)

Morfinándiének szintézise és átalakítása biológiailag aktív vegyületekké = Synthesis of morphinandienes and their transformation into biologically active compounds [PDF]

open access: yes, 2009
Megvalósítottuk a tebainból kiinduló szintézisét különböző 2-alkiltioapomorfinoknak (kulcsvegyület a 2-metiltioapomorfin és ennek N-propil származéka), valamint S-atommal kapcsolt biszaporfin származékoknak, az előállított származékok farmakológiai ...
Csutorás, Csaba
core  

Effects of opium dependency on hypothalamic pituitary gonadal axis

open access: yes, 2006
The aim of this study was to determine the effect of opium on hypothalamic pituitary gonad function. Fifty-six opium dependent (28 men and 28 women; mean age, 25±5 year) were enrolled for hypothalamic pituitary gonadal axis. The control group considered
Mansorian, A.-R.   +6 more
core   +1 more source

Alkaloid Accumulation and Distribution within the Capsules of Two Opium Poppy (Papaver somniferum L.) Varieties

open access: yesPlants
The goal of this study was to clarify the role of capsule size and morphology in the alkaloid yield of poppy. In 2023, two industrial varieties from large-scale cultivation were investigated.
Péter Májer, Éva Zámboriné Németh
doaj   +1 more source

Fast and selective HPLC-DAD method for determination of pholcodine and related substances

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2011
Quality control of pharmaceuticals requires development of fast, efficient and reliable methods for determination of active compounds as well as known and very often unknown impurities within defined concentration ranges. In this work, a simple and rapid
Ana Petkovska   +2 more
doaj   +1 more source

The harmonized system: amendments and their impact on WTO members' schedules [PDF]

open access: yes, 2008
The Harmonized System is normally amended by the World Customs Organization every four to six years. These amendments pose considerable challenges for the WTO and its Members.
Yu, Dayong
core   +1 more source

ALKALOIDS OF PAPAVERACEAE (XVI) [I]. ALKALOIDS OF PAPAVER FUGAX POPULATION TAROM [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1997
Papaverfugax Poiret population Tarom was shown to contain one major alkaloid, mecamberine (0.4%), and six minor alkaloids, roemerine, pronuciferine, protopine, thebaine, nornuciferine and salutaridine.
doaj  

Chemometric approach for development, optimization and validation of HILIC methods used for the determination of alkaloids from poppy straw

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2014
Two hydrophilic interaction liquid chromatography (HILIC) methods for simultaneous determination of the major alkaloids (morphine, codeine, thebaine, oripavine, papaverine and noscapine) in opium poppy straw (Papaver somniferum L., Papaveraceae) were ...
Jelena Acevska   +6 more
doaj   +1 more source

Opium use and risk of mortality from digestive diseases: A prospective cohort study

open access: yes, 2013
Objectives:Opium use, particularly in low doses, is a common practice among adults in northeastern Iran. We aimed to investigate the association between opium use and subsequent mortality from disorders of the digestive tract.Methods:We used data from ...
  +80 more
core   +1 more source

Transient Expression of cor Gene in Papaver somniferum

open access: yesBioImpacts, 2011
Introduction: Papaver somniferum is the commercial source of morphine and codeine. The isolation of effective genes involved in the morphine biosynthesis of P.
Bahman Hosseini   +6 more
doaj   +1 more source

Plant cell technologies in space: Background, strategies and prospects [PDF]

open access: yes
An attempt is made to summarize work in plant cell technologies in space. The evolution of concepts and the general principles of plant tissue culture are discussed.
Kirkorian, A. D., Scheld, H. W.
core   +1 more source

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