Results 11 to 20 of about 51,087 (265)

UV light impact on phthalates migration from children’s toys into artificial saliva [PDF]

open access: yesJournal of the Serbian Chemical Society, 2022
Phthalates has been widely used in children’s toys as plastic plasticizers and softeners. Therefore, attention should be paid to plastic toys, especially those that children can put in their mouths.
Anđelković Tatjana D.   +4 more
doaj   +1 more source

Early Miocene herpetofauna from the Ribesalbes-Alcora Basin (Castelló, eastern Spain): a first step towards modern herpetofaunas in the Iberian Peninsula [PDF]

open access: yesFossil Record
The Early Miocene is a key period in the evolution of modern reptile and amphibian faunas, particularly for snakes. However, there are very few studies focused on herpetofauna in Iberian sites of this chronology.
Rafael Marquina-Blasco   +3 more
doaj   +3 more sources

Young People’s Perspectives on and Experiences of Health-Related Social Media, Apps, and Wearable Health Devices

open access: yesSocial Sciences, 2018
It has been reported from numerous international and socio-economic contexts that young people are becoming increasingly interested in and/or using social media, apps, and wearable devices for their health. Yet, there are few robust empirical accounts on
Victoria A. Goodyear, Kathleen M. Armour
doaj   +1 more source

Debate as A Learning-Teaching Method: A Survey of Literature

open access: yesTarbiya : Journal of Education in Muslim Society, 2016
This present paper explored historical references of debate trend  to be proposed as one of learning-teaching method. By analyzing the strengths and limitations of debate, the author found that any existing debate format is imperfect and it is educators’
Arskal Salim
doaj   +1 more source

Characterization of Chemically Synthesized Polyaniline-Polyvinylchloride-Montmorillonite Nanocomposite [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2015
Polyaniline-montmorillonite (PANI-MMT) nanocomposite was synthesized by chemical polymerization of aniline in the presence of montmorillonite (MMT) nanostructures.
Arefeh Tabatabaei, Maryam Farbodi
doaj   +1 more source

Properties of Acrylonitrile Styrene Acrylate Copolymer Modified Eucalyptus/Polyvinyl Chloride Composites

open access: yesBioResources, 2023
Eucalyptus/polyvinyl chloride (PVC) composites were prepared by extrusion molding with eucalyptus as filler, PVC as matrix, and different contents of acrylonitrile styrene acrylate copolymer (ASA).
Min Wang   +3 more
doaj   +2 more sources

Investigation of structural, thermal and dielectric properties of PVC/modified magnetic nanoparticle composites

open access: yesCumhuriyet Science Journal, 2020
Three different composites (5, 10, and 20 wt. %) were prepared using purified PVC and POH-g-N3PTMS-g-Fe3O4. Firstly, 3-azidopropyltrimethoxysilane was synthesized under reflux from 3-chlorotrimethoxysilane and sodium azide.
Mehmet Coşkun   +2 more
doaj   +1 more source

Threats to Auditor Independence: Evidence from Iran [PDF]

open access: yesAthens Journal of Business & Economics, 2020
This paper aims to examine threats to auditor independence in Iran. A mixed questionnaire, including both quantitative closed-ended questions and an open-ended qualitative question, is developed to investigate threats to auditor independence.
Ashkan Mirzay Fashami   +2 more
doaj   +1 more source

بررسی تأثیر استفاده از PVC بر خرابی رطوبتی مخلوط آسفالت گرم [PDF]

open access: yesمهندسی عمران فردوسی, 2019
خرابی رطوبتی در مخلوط‌های آسفالتی از دست دادن دوام و مقاومت ناشی از تأثیر رطوبت تعریف می‌شود. در این پژوهش، تأثیر استفاده از ماده پلیمری پلی‌وینیل‌کلراید به‌عنوان اصلاح‏کننده قیر بر خرابی رطوبتی مخلوط‏های آسفالتی بررسی شده است.
غلامحسین حامدی
doaj   +1 more source

Rheology of Wet Pastes of Pvc Particles

open access: yesApplied Rheology, 2010
The present work deals with the study of the rheological behaviour of PVC (polyvinylchloride) pastes containing particles of ≈ 150 mm in diameter obtained by polymerization in suspension. The rheological properties of the PVC pastes were characterized by
Rabia A.   +3 more
doaj   +1 more source

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