Results 31 to 40 of about 8,440,997 (338)

Trace element composition of troilite, iron and iron-nickel metall from meteorite Chelyabinsk

open access: yesЛитосфера, 2015
We studied the contents of trace elements in troilite, iron and in iron-nickel metal from meteorite Chelyabinsk by means of LA-ICP-MS. The features of the distribution of siderophile and chalcophile elements in sulfide and metallic phase in gray and ...
S. Yu. Stepanov, S. V. Berzin
doaj   +2 more sources

Resolving scientific controversy over smelter risks and neurodegenerative effects of metals

open access: yesAIMS Environmental Science, 2015
Although it is well known that metals pollution can cause neurotoxic effects, scientists are currently divided about the neurodegeneration hypothesis. That is, some scientists accept, while others fail to accept, the hypothesis that metals/metalloids, at
Rebecca L. Thomas   +1 more
doaj   +1 more source

Non-Cyanide Silver as a Substitute for Cyanide Processes [PDF]

open access: yes, 2002
Since the mid 1800s, silver has been deposited from a cyanide-based formulation on a commercial basis. Commercial non-cyanide silver plating solutions were first made generally available in the late 1970s, and yet today the vast majority, and nearly ...
Chicago Metal Finishers Institute
core  

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Beyond the Toolpath: Site-Specific Melt Pool Size Control Enables Printing of Extra-Toolpath Geometry in Laser Wire-Based Directed Energy Deposition

open access: yesApplied Sciences, 2019
A variety of techniques have been utilized in metal additive manufacturing (AM) for melt pool size management, including modeling and feed-forward approaches. In a few cases, closed-loop control has been demonstrated.
Brian T. Gibson   +3 more
doaj   +1 more source

Method for fabricating solar cells having integrated collector grids [PDF]

open access: yes, 1979
A heterojunction or Schottky barrier photovoltaic device comprising a conductive base metal layer compatible with and coating predominately the exposed surface of the p-type substrate of the device such that a back surface field region is formed at the ...
Evans, J. C., Jr.
core   +1 more source

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

Ювелирное искусство Екатеринбурга конца XX – начала XXI века

open access: yesИскусство Евразии, 2019
В статье кратко рассмотрены три основных этапа развития ювелирного искусства Екатеринбурга конца XX начала XXI века. Приведены общие временные истилистические особенности каждого периода.
Глазырин, Кирилл Николаевич
doaj   +1 more source

Metal-metal reinforced laminar composites [PDF]

open access: yes, 1973
Two prototype laminar composites have shown potential for high strength and high temperature applications. These composites might be made with less in-place anisotropy and be less expensive than comparable fiber ...
Hoffman, C. A., Weeton, J. W.
core   +1 more source

Purification tags markedly affect self‐aggregation of CPEB3

open access: yesFEBS Letters, EarlyView.
Although recombinant proteins are used to study protein aggregation in vitro, uncleaved tags can interfere with accurate interpretation. Our findings demonstrate that His₆‐GFP and His₁₂ tags significantly affect liquid droplet and amyloid fibril formation in the intrinsically disordered region (IDR) of mouse cytoplasmic polyadenylation element‐binding ...
Harunobu Saito   +6 more
wiley   +1 more source

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