Results 61 to 70 of about 8,903 (246)

Exploiting Ferroelectric and Spintronic Dynamics for Neural Network Computation

open access: yesAdvanced Intelligent Systems, EarlyView.
Ferroelectric and spintronic devices, relying on the control of polarization and magnetization, offer intrinsically fast, durable, energy‐efficient, and low‐latency building blocks for analog in‐memory computing. The hysteretic dynamics of an order parameter are leveraged to provide nonvolatile, multistate memory and nonlinear switching. Brain‐inspired
Dashiell Harrison   +4 more
wiley   +1 more source

Khat Chewing and Smoking Effect on Oral Mucosa: A Clinical Study

open access: yesActa Medica, 2009
Khat (Catha Edulis Forskal) is widely cultivated in Yemen and East of Africa. The habit of chewing tender leaves and twigs of khat is deep-rooted in Yemen. Our study investigates the chronic khat chewing and smoking effect on oral mucosa.
Essam Halboub   +2 more
doaj   +1 more source

Graph Neural Network‐Based Reinforcement Learning for Decentralized Multi‐Robot Manipulation

open access: yesAdvanced Intelligent Systems, EarlyView.
Robot arms lifting a large object face a trade‐off: centralized controllers explode in parameters, while decentralized ones cannot coordinate. A GNN resolves this—each arm runs its own network but acts on the full team state, achieving centralized‐level coordination with decentralized execution. Trained across team sizes, a single policy scales to four‐
Tong Chen   +3 more
wiley   +1 more source

Macroscopic picture of khat waste

open access: yes, 2022
Photograph of khat waste  used in the manuscript titled Nanofibrillated cellulose aerogel from Khat (Catha Edulis) waste: fabrication and characterizations 
Jemal Jabir (12957446)   +2 more
core   +1 more source

Spectroscopic and In Silico Determination of the Structural and Antioxidant Properties of Essential Oils From Lavandula Species Cultivated in the Silivri Region of Istanbul

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Plants are important sources of bioactive compounds that contribute to nutrition, health maintenance, and disease prevention. In this study, the chemical composition and antioxidant potential of essential oils obtained from Lavandula angustifolia “Sevtopolis” and Lavandula × intermedia cultivated in the Silivri region of Istanbul were ...
Bilge Bicak   +4 more
wiley   +1 more source

Magnitude of Khat use and associated factors among women attending antenatal care in Gedeo zone health centers, southern Ethiopia: a facility based cross sectional study

open access: yesBMC Public Health, 2020
Background Khat (Catha edulis) is a fresh green leave commonly chewed for recreational purpose and its euphoric effect as a result of dopamine activities stimulation effect of Khat.
Birhanie Mekuriaw   +2 more
doaj   +1 more source

Khat Production and Household Welfare among Khat Growers Ethiopia [PDF]

open access: yes, 2020
The main objective of this study was to examine the welfare effects of khat production on households. Our finding shows that, khat production was found to be associated with better living conditions; this was not the case with regard to improvements in ...
Abafita, Jemal   +1 more
core   +1 more source

Net‐Zero Transition and Its Impact on Firms' Energy Efficiency and Economic Growth Within the Framework of Sustainable Development Goals: A Systematic Literature Review and Bibliometric Analysis

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The transition to net zero (NZ) faces challenges such as uneven institutional readiness, fragmented policy frameworks and rising energy demands from population growth, economic expansion and artificial intelligence (AI). These obstacles are intensified by technological, financial and regulatory uncertainties that impede coordinated efforts ...
Mohamed Shrief   +3 more
wiley   +1 more source

Xylose Acetals ‐ a New Class of Sustainable Solvents and Their Application in Enzymatic Polycondensation

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Novel organic solvents with an unmodified carbohydrate core were synthesised both from D‐xylose and directly from biomass and were successfully used as reaction media for lipase biocatalysts to synthesise aliphatic and aromatic polyesters. Abstract The use of organic solvents in academic research and industry applications is facing increasing ...
Anastasia O. Komarova   +8 more
wiley   +1 more source

Khat use, PTSD and psychotic symptoms among Somali refugees in Nairobi - a pilot study

open access: yesFrontiers in Public Health, 2014
In East-African and Arab countries, khat leaves are traditionally chewed in social settings. They contain the amphetamine-like alkaloid cathinone. Especially among Somali refugees khat use has been associated with psychiatric symptoms.
Marina eWidmann   +9 more
doaj   +1 more source

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