Results 51 to 60 of about 298,446 (259)

Formation of Ligno-Polyols: Fact or Fiction

open access: yesBioResources, 2017
The physical and chemical characteristics of several lignin-polyol blends were investigated by qualitative and quantitative methods from the view of biobased polyurethane applications. Four differently isolated biomass lignins from forestry and agricultural residues were blended with polyester polyol, and one was blended with polyethylene glycol.
Jalal Hawari   +4 more
openaire   +3 more sources

Climate Action Impacts on Steelmaking Emissions of Persistent Organic Pollutants Highlight a Gap Between the Paris Agreement and the Stockholm Convention

open access: yesAdvanced Science, EarlyView.
Emissions of unintentionally produced persistent organic pollutants (UPOPs) and global warming are two major environmental challenges. But their governance has largely evolved in parallel, leaving the toxicity implications of climate‐driven industrial transitions poorly understood.
Yuxiang Sun   +7 more
wiley   +1 more source

Microplastics in the geological-ecological subsystem of the coastal part of the geoecosystem of the Georgian Shelf

open access: yesМінеральні ресурси України
The results of studies on the distribution of microplastics in the surface layer of seafloor sediments in the water area adjacent to the coast of Georgia, conducted by specialists of the State Scientific Institution “MorGeoEcoCenter of the NAS of Ukraine”
V. O. Iemelianov   +4 more
doaj   +1 more source

Zeolite deposits of possible economic significance on the northern Alaska Peninsula [PDF]

open access: yes, 1982
Clinoptilolite, mordenite, haulandite and laumontite have been identified in possible economic concentrations on the Alaska Peninsula. Most important are 1) a haulandite bearing water-laid tuff on Agate Island, 2) a thick sequence of terrestrial ...
Madonna, J.A.
core  

Palaeodiversity and formation counts: redundancy or bias? [PDF]

open access: yesPalaeontology, 2015
AbstractA key question in palaeontology is whether the fossil record taken at face value is adequate to represent true patterns of diversity through time. Some methods of assessing data quality have depended on the commonly observed covariation of palaeodiversity and fossiliferous formation counts through time, based on the assumption that the count of
openaire   +3 more sources

A NeuroD1 AAV‐Based Gene Therapy for Functional Brain Repair in Alzheimer's Disease‐Like Non‐Human Primate Model

open access: yesAdvanced Science, EarlyView.
This study tests NeuroD1 AAV‐based gene therapy in a non‐human primate Alzheimer's disease model. The therapy prevents neuronal damage, inhibits hippocampal atrophy, and reduces neuroinflammation. It also repairs vascular and blood‐brain barrier damage, restores cerebrospinal fluid biomarkers, enhances hippocampal glucose metabolism, and improves ...
Zhouquan Jiang   +21 more
wiley   +1 more source

Formation of competitive advantages of iron-ore mining enterprises [PDF]

open access: yes, 2013
Розглянуто формування показника конкурентоспроможності гірничозбагачувального підприємства з урахуванням резервів, технологічних і економічних факторів підвищення його конкурентних переваг при реалізації кінцевої продукції на внутрішньому і зовнішньому ...
Kravets, V.G., Temchenko, О.А.
core  

Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings

open access: yesAdvanced Science, EarlyView.
Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini   +5 more
wiley   +1 more source

Uranium-lead age of monazite from granite of the gaysin complex (Ros-Tikits megablock of the Ukrainian shield

open access: yesМінеральні ресурси України, 2017
Haysin complex includes granitoids that form a continuous series of rocks: diorite – quartz diorite – granodiorite – amphibole–biotite granite – biotite granite – pink applet-pegmotoid granite.
L. M. Stepanyuk   +4 more
doaj  

Geochronology by monazite veins of granite of the old Crimea quarry (Azov Region, Ukrainian Shield)

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
The purpose. The aplitoid biotite granites with traces of rheomorphic transformations lying among gneisses and crystalline schists of the Central-Priazovska series of the Ukrainian shield, as well as the anatomy of accessory crystals of zircon and ...
Leonid Stepanyuk   +3 more
doaj   +1 more source

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