Results 21 to 30 of about 22,033 (231)

Mineral raw materials of Serbia on the list of critical minerals of the European Commission (CRM EU-2020) during the Covid-19 pandemic and harmonized in the UNFC-2009 system and the PERC standard [PDF]

open access: yesTehnika, 2023
The existence of mineralization, mining and deposits of non-ferrous and precious and other metals (Pb-Zn, Ag; Cu, Au, as well as B-Li, Mg, Sb, etc.) in the territory of Serbia is conditioned by the structural-geological-metallogenetic structure and ...
Vukas Radoslav B.
doaj  

Comparison of Mini-perc and Retrograde Intrarenal Surgery in Residual Stone Fragments with Hounsfield Unit after Percutaneous Nephrolithotomy

open access: yesTranslational Research in Urology, 2021
Introduction: Retrograde Intrarenal Surgery (RIRS) and Minimally invasive PCNL (also termed mini-PCNL or mini-Perc or mPCNL) mini-perch surgery are two methods of residual stone treatment.
Mohammad Reza Jafari Shahdani   +3 more
doaj   +1 more source

Clinicopathological phenotypes of singleton stillbirth: A retrospective cohort study. [PDF]

open access: yesActa Obstet Gynecol Scand
Clinical information, description of placenta, and umbilical cord were reviewed, and microscopic slides re‐evaluated according to the Amsterdam Consensus. Stillbirths with maternal vascular malperfusion often had signs of high‐risk pregnancy, unlike stillbirths with villitis of unknown etiology, fetal vascular malperfusion, and umbilical cord at risk ...
Bjarnadottir RI   +5 more
europepmc   +2 more sources

PD-L1/PD-L2-expressing B-1 cells inhibit alloreactive T cells in mice. [PDF]

open access: yesPLoS ONE, 2017
B cells constitute a complex system of antigen-presenting cells (APCs) and exist as distinct subsets that differ in their lineage affiliation, surface molecule expression, and biological function, thus potentially regulating the immune response.
Takayuki Hirose   +6 more
doaj   +1 more source

Synchronization in simplicial complexes of memristive Rulkov neurons

open access: yesFrontiers in Computational Neuroscience, 2023
Simplicial complexes are mathematical constructions that describe higher-order interactions within the interconnecting elements of a network. Such higher-order interactions become increasingly significant in neuronal networks since biological backgrounds
Mahtab Mehrabbeik   +7 more
doaj   +1 more source

Design of the Magnet System of the Neutron Decay Facility PERC

open access: yes, 2018
International audienceThe PERC (Proton and Electron Radiation Channel) facility is currently under construction at the research reactor FRM II, Garching.
Rebrova, Nataliya   +74 more
core   +1 more source

Passivated Emitter and Rear Cell (PERC) Assessment and Potential in Palestine [PDF]

open access: yesمجلة جامعة النجاح للأبحاث العلوم الطبيعية
Palestine has limited energy sources and must import different fuels from neighboring countries, hence renewable energy sources like solar energy are necessary.
Salameh Abdel-Fattah   +4 more
doaj   +1 more source

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+1 more source

Free Neutron Decay Measurements with PERC - The Beamstop [PDF]

open access: yes
The PERC (Proton and Electron Radiation Channel) facility, located at the neutron source FRM II of the Technical University of Munich (TUM), serves as a clean source of neutron decay products (protons and electrons).
Abele, Hartmut   +4 more
core   +1 more source

Comparison between mini-percutaneous nephrolithotomy and retrograde intra renal surgery for the management of lower calyceal calculi of size less than 1.5 cm : Our institutional experience

open access: yesAsian Journal of Medical Sciences
Background: The treatment of lower calyceal calculi with a size
Jayaprakash Narashimman   +4 more
doaj   +1 more source

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