Results 91 to 100 of about 295,086 (332)

The Peculiarities of Scots Pine Growth in the Conditions of the Krasnoyarsk Forest-Steppe

Лесной журнал
The growth peculiarities of Scots pine (Pinus sylvestris L.) have been studied by the example of an even-aged pine stand of high density. A long-term research has been conducted on a permanent sample plot.
Viktor V. Ivanov, Aleksandr N. Borisov, Olga A. Shapchenkova, Alexey E. Petrenko   +3 more
doaj   +1 more source

Comparison of horizontal and vertical methods of tooth preparation for a prosthetic crown

Journal of Pre-Clinical and Clinical Research, 2020
The application of magnifying devices, such as magnifiers, microscopes, precision drills, intraoral scanners, printed models, milled, and monolithic restorations, increases the precision of the preparation, accuracy of workmanship and marginal tightness,
Paweł Łabno, Krzysztof Drobnik
doaj   +1 more source

Retention force of differently fabricated telescopic PEEK crowns with different tapers.

Dental materials journal, 2016
To assess the retention force between primary and secondary PEEK crowns made by different fabrication methods. Primary crowns with different tapers (0°, 1°, and 2°) were fabricated and secondary crowns that were either milled from breCam BioHPP blanks ...
V. Stock, C. Wagner, S. Merk, M. Roos, P. Schmidlin, M. Eichberger, B. Stawarczyk   +6 more
semanticscholar   +1 more source

Scalable Main Group Mechanocatalytic CO2 Valorisation to Cyclocarbonate Species

Angewandte Chemie, EarlyView.
Herein, we present a scalable mechanocatalytic method for synthesizing cyclic carbonates from solid and liquid epoxides using CO₂ at 1 bar and room temperature. Employing a gallium aminotrisphenolate catalyst, this process achieves high yields, efficiently transforms multi‐terminal epoxides, and outperforms solution‐based methods in green metrics ...
Javier F. Reynes, Lucia Álvarez‐Miguel, F. Winkelmann, M. Felderhoff, Marta E. G. Mosquera, Christopher J. Whiteoak, Felipe García   +6 more
wiley   +2 more sources

Swedish farmers' approval of nudges

Agribusiness, EarlyView.
Abstract Interest in the use of behavioral policy approaches, such as nudges, has strongly increased over the past years, including in the domains of food, agricultural and environmental policies. While the approval of nudges among the general public has been studied extensively, we know little about the attitude of farmers toward nudging. Farmers may (
Liesbeth Colen, Leon Englberger, Jens Rommel   +2 more
wiley   +1 more source

The Effect of Try-in Paste Shade and Framework Design on the Color Characteristics of Dental Zirconia Restorations [PDF]

Journal of Dentistry
Background: Favorable esthetic and mechanical qualities, together with rapid advancements in CAD/CAM technology, have increased the adoption of zirconia restorations.
Abolghasem Mohammadi, Seyed Alireza Gerami, Sara Tavakolizadeh, Rahab Ghoveizi, Ehsan Rouhollahpour Ahangar   +4 more
doaj   +1 more source

Suitability of Secondary PEEK Telescopic Crowns on Zirconia Primary Crowns: The Influence of Fabrication Method and Taper

Materials, 2016
This study investigates the retention load (RL) between ZrO2 primary crowns and secondary polyetheretherketone (PEEK) crowns made by different fabrication methods with three different tapers.
S. Merk, C. Wagner, V. Stock, M. Eichberger, P. Schmidlin, M. Roos, B. Stawarczyk   +6 more
semanticscholar   +1 more source

Synthesis of Molecular Organo‐f‐Element‐Polyphosphides with Nonclassical Divalent Lanthanide Precursors

Angewandte Chemie, EarlyView.
Herein we show the synthesis and characterization of organo‐f‐element‐functionalized polyanionic compounds, including the triangular P33− and the P144− polyphosphide Zintl anion. The title compounds, which are the largest organo‐f‐element polyphosphides known to date, were obtained by reduction of white phosphorus with precursors of the early ...
David Frick, Elena Pross, Ralf Köppe, Peter W. Roesky   +3 more
wiley   +2 more sources

How Does Cultural and Colonial Heritage Affect Optimal Branding Strategies? Evidence From the Rice Sector in Senegal

Agribusiness, EarlyView.
ABSTRACT Africa's cultural and colonial heritage has profoundly segmented rice markets. Whereas in ancient centers of rice domestication, consumers maintained preferences for local rice consistent with their cultural heritage, preferences have shifted toward imported Asian rice in coastal areas around seaports, due to prior exposure to colonial import ...
Kofi Britwum, Matty Demont
wiley   +1 more source

PEEK Primary Crowns with Cobalt-Chromium, Zirconia and Galvanic Secondary Crowns with Different Tapers—A Comparison of Retention Forces

Materials, 2016
In prosthetic dentistry, double crown systems have proved their suitability as retainers for removable partial dentures. However, investigations in this context, regarding polyetheretherketone, are scarce. Therefore, the aim of this study was to test the
V. Stock, P. Schmidlin, S. Merk, C. Wagner, M. Roos, M. Eichberger, B. Stawarczyk   +6 more
semanticscholar   +1 more source