Results 1 to 10 of about 1,310,092 (286)

Food security in Indonesia: the role of social capital

open access: yesDevelopment Studies Research, 2023
Social capital (i.e. bonding and bridging) affects food security. In Indonesia, studies have been conducted at the site level, covering households in specific provinces, districts, subdistricts, or even villages.
Estiana Rusmawati   +2 more
doaj   +1 more source

Investigasi Kuat Geser Antara Lapisan Permukaan Campuran Aspal Panas Akibat Pengaruh Waktu Penundaan dan Sebaran Tack Coat

open access: yesRekayasa Sipil, 2023
The hot asphalt surface layer is layered and has different functions in the pavement structure. In addition to being able to distribute the vertical load of the vehicle, it must also be able to withstand the lateral load of the vehicle.
Hery Awan Susanto   +2 more
doaj   +1 more source

Comparison of Shear Bond Strength and Adhesive Remnant Score of Orthodontic Brackets Bonded with Three Different Orthodontic Adhesives: An In-vitro Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2023
Introduction: Adequate bond strength between orthodontic brackets and enamel is necessary to withstand masticatory forces. Priming involves applying a primer before using the adhesive as a separate step.
Kavitha Ramsundar, Ravindra Kumar Jain
doaj   +1 more source

What Is the Most Effective Technique for Bonding Brackets on Ceramic—A Systematic Review and Meta-Analysis

open access: yesBioengineering, 2022
Background: There has been an increase in demand for orthodontic treatment within the adult population, who likely receive restorative treatments using ceramic structures.
Inês Francisco   +10 more
doaj   +1 more source

Electron Lone-Pairs Stereochemistry and Drastic van der Waals and Pressure Effects in AsF3 from First Principles

open access: yesCondensed Matter, 2021
AsF3E as a representative of a molecular crystal has been chosen to find the precise localization of the lone pair (LP) E centroid 4s2 of As3+ and to enlighten the behavior of lone pair triplets of fluorine atoms. Starting from stereochemistry rationale,
Jean Galy, Samir F. Matar
doaj   +1 more source

Origin of Local Structures of U-Co Melts: A First-Principles Study

open access: yesFrontiers in Materials, 2022
The local structures of U-Co melts have been studied by first-principle calculations. Two sub-peaks are observed in the first peaks of U-U pair distribution functions.
Huanqing Zhang   +3 more
doaj   +1 more source

The name's bond……disulfide bond [PDF]

open access: yesCurrent Opinion in Structural Biology, 2007
A repeating theme in the structural biology of disulfide oxidants and isomerases is the extraordinary architectural similarity between functionally related proteins from prokaryotes and eukaryotes. The recently determined structure of full-length yeast protein disulfide isomerase (PDI) reveals a U-shaped molecule with two redox-active sites. It bears a
Heras, Begona   +3 more
openaire   +3 more sources

The effect of hides and parity on behavior of periparturient dairy cows at pasture

open access: yesJournal of Dairy Science, 2022
: Under natural conditions, most parturient cows seek visual cover or seclude themselves from the herd when calving becomes imminent. Studies on calving site selection of dairy cows housed indoors show that predominantly older and dominant cows calve in ...
Margit Bak Jensen   +3 more
doaj   +1 more source

A Cationic Compound of Ru25⊕ Containing a Coordinated PF4O⊖ Ion

open access: yesCHIMIA, 1989
The compound Ru2(PhNNNPh)4 was oxidized in CH2Cl2 with AgPF6. From a CH2Cl2/(C2H5)2O solution left to evaporate in air for one month blue-green crystals of Ru2(PhNNNPh)4OPF4, in which the PF4O⊖ ion is coordinated to one Ru atom (Ru–O: 220(1) pm), were ...
F. Albert Cotton, Marek Matusz
doaj   +1 more source

Βio-Based Epoxy/Amine Reinforced with Reduced Graphene Oxide (rGO) or GLYMO-rGO: Study of Curing Kinetics, Mechanical Properties, Lamination and Bonding Performance

open access: yesNanomaterials, 2022
In this work, we report the synthesis and study of nanocomposites with a biobased epoxy/amine (Epilok 60-600G/Curamine 30-952) matrix reinforced with reduced graphene oxide (rGO) or functionalised with 3-glycidoxypropyltrimethoxysilane (GLYMO-rGO). These
Sheikh Rehman   +4 more
doaj   +1 more source

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