Results 151 to 160 of about 1,339 (303)

Laboratory Evaluation of the Physicochemical Properties of Novel Pre‐Mixed Putty‐Type Bioceramic Materials

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This study aimed to compare the physicochemical properties of EndoSequence Root Repair Material (ERRM) Fast and CeraPutty with ProRoot MTA and Biodentine, focusing on setting time, radiopacity, microhardness, and pH. Setting time was measured using a Gilmore‐type indenter applied every 5 min until no indentation was observed (n = 15 per group).
So‐Mang Lee   +3 more
wiley   +1 more source

The choice argument for proportional representation

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract What electoral system should a democracy choose? I argue for proportional representation (PR). My main empirical premise is Duverger's law: Under PR there are more viable candidates in district‐level elections than there are under single‐member plurality (SMP) systems.
Adam Lovett
wiley   +1 more source

‘Missing persons’: Ancient legacies of human–environment interaction in tropical natural properties inscribed under the 1972 World Heritage Convention

open access: yesArchaeometry, EarlyView.
Abstract Cultural and natural values form the core of World Heritage designation. Properties displaying both values, however, comprise a fraction of inscriptions (currently c. 3%) to the World Heritage List. In 1992, when that fraction stood at c. 5%, adoption of the popular ‘cultural landscapes’ category of cultural heritage in 1992 was therefore ...
Ryan J. Rabett
wiley   +1 more source

MOULDING PROPERTIES OF RIVER NIGER SAND (IDAH DEPOSIT) BONDED WITH IYOLOKO CLAY AND CASSAVA STARCH

open access: diamond, 2017
S. Edibo   +3 more
openalex   +1 more source

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