Results 31 to 40 of about 72,673 (310)

Research on learning objects quality and reusability

open access: yesLietuvos Matematikos Rinkinys, 2010
The paper is aimed to analyse the learning objects quality evaluation model taking into account learning objects reusability principles. Multiple criteria analysis methods and quality evaluation criteria identification principles are used to create the ...
Elvyra Ignaško, Eugenijus Kurilovas
doaj   +1 more source

Cross-Linked Ionic Liquid Polymer for the Effective Removal of Ionic Dyes from Aqueous Systems: Investigation of Kinetics and Adsorption Isotherms

open access: yesMolecules, 2022
In the current study, we have synthesized an imidazolium based cross-linked polymer, namely, 1-vinyl-3-ethylimidazolium bis(trifluoromethylsulfonyl)imide (poly[veim][Tf2N]-TRIM) using trimethylolpropane trimethacrylate as cross linker, and demonstrated ...
A. Vijaya Bhaskar Reddy   +4 more
doaj   +1 more source

Sustainable Removal of BTEX Gas Using Regenerated Metal Containing SiO2

open access: yesNanomaterials, 2022
In the last decades, the removal of benzene, toluene, ethylbenzene, and xylene (BTEX) has been considered a major environmental crisis. In this study, two novel nanocomposite materials (Fe2O3/SiO2 and Fe2O3-Mn2O3/SiO2) that have regeneration ability by ...
Soyoung Beak   +5 more
doaj   +1 more source

Recent advances in spinel ferrite-based magnetic photocatalysts for efficient degradation of organic pollutants

open access: yesWater Science and Technology, 2023
Although spinel ferrite (MFe2O4, M = Zn, Ni, Mn, etc.) has been reported as a promising catalyst, its low photocatalytic activity under visible light greatly restricts its practical application.
Qiong Wu, Youtao Song
doaj   +1 more source

Magnetic and Hydrophobic Composite Polyurethane Sponge for Oil–Water Separation

open access: yesApplied Sciences, 2020
Crude oil spills from offshore oil fields will cause serious pollution to the marine ecological environment. Many 3D porous materials have been used for oil−water separation, but they cannot be widely used due to complex preparation processes and ...
Peng Jiang   +4 more
doaj   +1 more source

Commentary by Symeon Retalis on Littlejohn, A. (2003) Reusing Online Resources, Chapter 3: Keeping the Learning in Learning Objects, by Dan Rehak and Robin Mason

open access: yesJournal of Interactive Media in Education, 2004
: Recognising the fact that learning objects are still a new concept, D. Rehak and R. Mason have tackled the significant issue of how to make learning objects work in practice in a very interesting and thorough manner.
Symeon Retalis
doaj   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

open access: yesFEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas   +6 more
wiley   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

open access: yesFEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen   +5 more
wiley   +1 more source

A theory of software reusability [PDF]

open access: yes, 1988
Software reusability is a topic of first practical importance. Most of the current approaches are based on empirical methods such as key words or descriptions in natural language. This paper suggests a criterion for software reusability which is theoretically founded.
Marie-Claude Gaudel, Th. Moineau
openaire   +2 more sources

Unraveling 4‐Phenylbutyrate's Therapeutic Role in SLC6A1 Disorders: Pharmacochaperoning Over HDAC Inhibition

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Variants in SLC6A1, encoding the GABA transporter 1 (GAT‐1), cause epilepsy, autism spectrum disorder, and developmental delay via loss of GABA uptake, impaired trafficking, and ER retention. We previously found that 4‐Phenylbutyrate (PBA), an FDA‐approved drug, restores GABA uptake and reduces seizures in SLC6A1‐related disorders ...
Melissa B. DeLeeuw   +5 more
wiley   +1 more source

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