Results 221 to 230 of about 130,744 (269)

Structural Complexity From Powder X‐Ray Diffraction Data: Sr25[Mn42N50]: A New Member in the Family of Two‐Dimensional Intergrowth Nitridometalates

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
Sr25[Mn42N50] represents a new member in the family of layered nitridomanganates with complex crystal structures built up by 2D intergrowth – tiling at its best. The new compound Sr25[Mn42N50] (space group P 3¯, Pearson code hP117, a = 17.9756(7) Å, c = 5.7935(2) Å) represents a new member in the family of layered nitridomanganates with complex crystal
Alexander Ovchinnikov   +5 more
wiley   +1 more source

Primitive icosahedral quasicrystals in ZnMgLi(Dy, Ho, Er, Tm) systems

open access: yesActa Crystallographica Section A, EarlyView.
The study introduces new primitive icosahedral quasicrystals in Zn–Mg–Li–(Dy, Ho, Er, Tm) systems. Quasicrystals are studied with an X‐ray diffraction technique resolving the local atomic structure.New quasicrystals with rare‐earth elements and Li are synthesized with the self‐flux method. The starting composition involves 62.8 at.% Zn, 28.6 at.% Mg, 3.
Ireneusz Buganski   +6 more
wiley   +1 more source

Late‐Holocene evolution of a small Sub‐Arctic glacier, Gljúfurárjökull (Tröllaskagi, northern Iceland)

open access: yesBoreas, EarlyView.
Gljúfurárjökull, located on the Tröllaskagi Peninsula in northern Iceland, is a small glacier approximately 3.8 km in length. This study analyses the glacier's evolution through a combination of methods including: (i) geomorphological mapping, (ii) Cosmic‐Ray Exposure (CRE) dating, (iii) lichenometry and (iv) palaeoglacier reconstruction (volume ...
Nuria Andrés   +14 more
wiley   +1 more source

High average-flux laser-driven neutron source. [PDF]

open access: yesNat Commun
Vallières S   +12 more
europepmc   +1 more source

Epidemiology and Genetics of Rheumatic Diseases Suggest a Constant Rate of DNA Damage as Underlying Cause

open access: yesImmunology, EarlyView.
A constant rate of DNA damage that is not perfectly repaired will cause a constant rate of DNA mutations. The chance of mutation will increase if DNA is prone to damage, such as occurs in somatic hypermutation (SHM) hotspots and GC‐rich DNA. Thus, if one mutation‐prone DNA site drives disease, the age of onset of disease and degree of penetrance should
Piet C. de Groen
wiley   +1 more source

Depositional Facies, Sequence Stratigraphy, and Diagenesis of Lower Cretaceous Carbonate Reservoir, Southern Iraq: Implications for Petroleum Exploration

open access: yesJournal of Petroleum Geology, EarlyView.
ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed   +8 more
wiley   +1 more source

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