Results 21 to 30 of about 16,250 (189)

Green Fuel Combustion Synthesis of CeO2 and Ag/CeO2 Nanoparticles for Photocatalytic and Antibacterial Applications

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Silver‐doped cerium oxide nanoparticles (Ag/CeO2 NPs) were synthesized using Ricinus communis seed extract as a bio‐derived fuel in a solution combustion method. The combustion reaction, carried out at 450°C with AgNO3 and (NH4)2[Ce (NO3)6] as metal precursors, produced CeO2 and Ag/CeO2 NPs.
T. N. Ravishankar   +5 more
wiley   +1 more source

‘Where are the adults?’: Troubling child‐activism and children's political participation

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Children's political participation is a well‐established theme in childhood studies. In this article we offer an original account of child activism that takes into account the entangled and emergent aspect of children as activists. We begin with a historical and a conceptual review, noting the importance of mid‐20th century developments such ...
Sharon Hunter, Claire Cassidy
wiley   +1 more source

Hand‐powered and programmable electrowetting‐on‐dielectric droplet actuation enabled by triboelectric nanogenerator and mechanically encoded punch‐card switch array

open access: yesDroplet, EarlyView.
A hand‐powered and mechanically programmable electrowetting‐on‐dielectric platform is demonstrated by integrating a contact‐separation triboelectric nanogenerator with a mechanically encoded punch‐card switch array. This unified mechanical–electrical architecture enables autonomous, portable, and robust droplet control for field‐deployable microfluidic
Jing Ding   +5 more
wiley   +1 more source

Must-Take Cards: Merchant Discounts and Avoided Costs [PDF]

open access: yes, 2011
Antitrust authorities often argue that merchants cannot reasonably turn down payment cards and therefore must accept excessively high merchant discounts. The paper attempts to shed light on this “must-take cards” view from two angles.
ROCHET, Jean Charles, TIROLE, Jean
core   +1 more source

Investigations Into the Metabolism and Elimination of Flmodafinil and Fladrafinil for Sports Drug Testing Purposes

open access: yesDrug Testing and Analysis, EarlyView.
This article investigates the metabolism and elimination of flmodafinil and fladrafinil, two fluorinated analogs of modafinil and adrafinil listed as S6 stimulants by the World Anti‐Doping Agency. After single‐dose administration to six volunteers, the compounds and their main metabolites were studied in urine and blood.
O. Krug   +6 more
wiley   +1 more source

Gut function among children treated for severe acute malnutrition: A cohort study in Uganda

open access: yesJPGN Reports, EarlyView.
Abstract Objectives Impaired gut function in children with severe acute malnutrition (SAM) is associated with morbidity. We aimed to assess changes in six biomarkers representing different domains of gut function among children with complicated SAM during nutritional rehabilitation, and to identify predictors of these changes.
Betty Lanyero   +12 more
wiley   +1 more source

Comparative Evaluation of Structure–Processing–Property Relationships in Flax, Hemp, and Cattail Discontinuous fiber Thermoset Composites

open access: yesPolymer Composites, EarlyView.
Needle punching reorients fibers from in‐plane direction toward z‐direction of the web, resulting in mechanical interlocking of fibers and reduction in the nonwoven mat thickness. ABSTRACT Replacement of glass fiber mats, utilized in large and complex composite parts in the transportation industry, with natural fiber mats requires knowledge of natural ...
Md Shadhin   +2 more
wiley   +1 more source

Credit card fraud and detection techniques: a review [PDF]

open access: yes, 2009
Fraud is one of the major ethical issues in the credit card industry. The main aims are, firstly, to identify the different types of credit card fraud, and, secondly, to review alternative techniques that have been used in fraud detection.
Abdou, Hussein   +8 more
core  

Nonwoven rCF/PA6 Thermoplastic Composites: Hybrid Commingled Fibers vs. Powder Impregnation—Effects on Microstructure and Mechanical Properties

open access: yesPolymer Composites, EarlyView.
Comparison of powder impregnation and hybrid commingled non‐wovens for PA6/rCF nonwoven composites. The two‐step powder route gives lower voids and higher properties, while the single‐step hybrid route is limited by precursor inhomogeneity and high void content.
Gaia Francesca Lupia   +4 more
wiley   +1 more source

Creative idea exploration within the structure of a guiding framework : the card brainstorming game [PDF]

open access: yes, 2010
I present a card brainstorming exercise that transforms a conceptual tangible interaction framework into a tool for creative dialogue and discuss the experiences made in using it.
Eva Hornecker, Hornecker, E.
core   +1 more source

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