Results 81 to 90 of about 4,377 (211)

Harvesting impacts on commonly used medicinal tree species (Catha edulis and Rapanea melanophloeos) under different land management regimes in the Mpumalanga Lowveld, South Africa

open access: yesKoedoe: African Protected Area Conservation and Science, 2004
Harvesting of products from plants in the wild is widespread throughout southern Africa. Particularly important products are plant parts used in traditional medicine.
J. Botha   +2 more
doaj   +1 more source

MECHANISM OF ACTION OF (−)CATHINONE, A NEW ALKALOID FROM KHAT LEAVES [PDF]

open access: yes, 2017
A new alkaloid, (−)cathinone, has recently been isolated from khat leaves and has been shown to induce amphetamine-like behavioural effects. The actions of this alkaloid at the cellular level are discussed here and it is concluded that (−)cathinone ...
KALIX, PETER
core  

Soil Health Status Under Different Positions of Damota Subwatershed, East Hararghe Zone, Ethiopia

open access: yesApplied and Environmental Soil Science, Volume 2025, Issue 1, 2025.
The study evaluated the soil health conditions in Damota Subwatershed in 2023, assessing the physical and chemical characteristics of the soils to provide information that could be used to support sustainable agricultural practices and environmental protection efforts. In line with this, 36 composite soil samples were collected from 12 mapping units at
Teferi Taddesse Woldemariam   +5 more
wiley   +1 more source

Sustainable Intensification of Subsistence Agriculture, Socioeconomic Transformation, and Food Security

open access: yesAdvances in Agriculture, Volume 2025, Issue 1, 2025.
Food insecurity and chronic poverty are persistent problems in the less developed world. Food insecurity may result from rapid population growth, inappropriate use of limited resources, climate change, unsuitable technologies, and a lack of appreciation for local knowledge and resources.
Takele Taye Desta, Abiram Karanam
wiley   +1 more source

Khat consumption as a modifiable risk factor for chewing dystonia

open access: yesAnnals of Movement Disorders
Chewing dystonia, a variant of focal task-specific dystonia, is a rarely reported condition that causes remarkable decrement in quality-of-life, social embarrassment, and associated mental stress.
Anish Mehta   +5 more
doaj   +1 more source

Overview of literature and information on "khat-related" mortality: a call for recognition of the issue and further research

open access: yesAnnali dell'Istituto Superiore di Sanità
During the past 20 years or so, more has become known about the properties of khat, its pharmacology, physiological and psychological effects on humans.
John M. Corkery   +6 more
doaj   +1 more source

Neurotoxicity induced by mephedrone: an up-to-date review [PDF]

open access: yes, 2017
BACKGROUND: Mephedrone is a β-ketoamphetamine belonging to the family of synthetic cathinones, an emerging class of designer drugs known for their hallucinogenic and psychostimulant properties as well as for their abuse potential.
Busardo', FRANCESCO PAOLO   +6 more
core   +1 more source

Catha edulis chewing effects on treatment of paranoid schizophrenic patients

open access: yesNeuropsychiatric Disease and Treatment, 2015
Mohamed-I Kotb El-Sayed, Hatem-K Amin Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Helwan University, Ain Helwan, Helwan, Cairo, Egypt Background: The current study’s aim is to evaluate the possible interaction ...
Kotb El-Sayed MI, Amin HK
doaj  

Catha Edulis Active Principle, Cathinone, Suppresses Motor Coordination, Accelerates Anxiety and Alters the Levels of Dopamine and its Metabolites in the Limbic Areas of Male Swiss Albino Mice

open access: yesActa Pharmaceutica, 2018
Cathinone, the active principle of khat (Catha edulis), stimulates, excites and produces euphoric feelings in khat users. Locomotor and rearing activities, either individual or in groups, of male Swiss albino mice were decreased significantly compared to
Safhi Mohammed M.   +10 more
doaj   +1 more source

Nüüdisaegsed psühhotroopsed ained ning nende mõju hingamisfunktsioonile [PDF]

open access: yes, 2017
Mürgistused psühhotroopsete ainetega moodustavad suure osa kiirabi väljakutsetest ning on peamiseks mürgistussurmade põhjuseks Eestis. 21. sajandil on märkimisväärselt suurenenud keemiliselt toodetud uimastite (ingl designer drugs) kasutamine, mille ...
Lett, Minna Mari
core   +2 more sources

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