Results 31 to 40 of about 115,569 (162)

Stimuli‐Responsive Hierarchical Structuring Controls Survival and Programs Hydrogelation of Supramolecular Metallofibers

open access: yesAdvanced Materials, EarlyView.
Aqueous Zn(II) Salphen metallofibers decorated with PNIPAM undergo reversible, multi‐stimuli‐responsive hierarchical bundling. This higher‐order structuring kinetically stabilizes the otherwise fragile assemblies against dilution, acidic hydrolysis, and transmetallation, enables selective sorting of responsive fibers, and programs hydrogelation at ...
Merlin R. Stühler   +5 more
wiley   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

open access: yesAdvanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen   +7 more
wiley   +1 more source

Microwave-assisted preparation of yeast cells for ultrastructural analysis by electron microscopy

open access: yesMicrobial Cell
Budding yeast Saccharomyces cerevisiae is widely used as a model organism to study the biogenesis and architecture of organellar membranes, which can be visualized by transmission electron microscopy (TEM). Preparation of yeast cells for TEM can be quite
Moritz Mayer   +4 more
doaj   +1 more source

Crystal structure of 3,4,7,8-bis(1,2-dicarba-closo-dodecaborano[1,2])- 1,2,5,6-tetraselenacyclooctane benzene solvate, [(C2B10H10)Se2]2 · C6D6

open access: yesZeitschrift für Kristallographie - New Crystal Structures, 2006
C10H26B20Se4, monoclinic, P121/n1 (no. 14), a = 10.3649(4) Å, b = 13.8582(7) Å, c = 18.3667(8) Å, β = 95.460(3)°, V = 2626.2 Å3, Z = 4, Rgt(F) = 0.040, wRref(F2) = 0.097, T = 193 K.
García-Hernández Z.   +4 more
doaj   +1 more source

Cryo-Electron Microscopy of Arabidopsis thaliana Phytochrome A in Its Pr State Reveals Head-to-Head Homodimeric Architecture

open access: yesFrontiers in Plant Science, 2021
Phytochrome photoreceptors regulate vital adaptations of plant development, growth, and physiology depending on the ratio of red and far-red light.
Weixiao Yuan Wahlgren   +5 more
doaj   +1 more source

Engineering Na‐Rich P2‐Type Layered Oxides Through Li/Ti Dual Doping for Oxygen Redox Activation and Superior Structural Stability

open access: yesAdvanced Energy Materials, EarlyView.
P2‐type sodium layered oxides have potential for high‐voltage operation but suffer from structural instability and capacity fading. This work demonstrates that synergistic Li and Ti co‐doping enhances sodium inventory, suppresses detrimental phase transitions, and activates reversible lattice oxygen redox.
Rishika Jakhar   +16 more
wiley   +1 more source

Temperate forest heterogeneity decreases local and landscape‐scale spider diversity through habitat filtering despite increasing species turnover

open access: yesJournal of Animal Ecology, EarlyView.
In a large‐scale German forest experiment, habitat heterogeneity increased spider turnover but reduced local alpha diversity through habitat filtering. Together, these effects lowered landscape‐scale spider diversity. As such, the study shows whether environmental heterogeneity increases or decreases biodiversity depends on the balance between habitat ...
Jean‐Léonard Stör   +10 more
wiley   +1 more source

Crystal structure of (2,6-diisopropyl-phenyl)-[6-(2,6-dimethyl-phenyl)- pyridin-2-yl-methylene]-aminopalladium(II) dichloromethane trisolvate, Pd(C26H30N2)Cl2 · 3CH2Cl2

open access: yesZeitschrift für Kristallographie - New Crystal Structures, 2005
C29H36Cl8N2Pd, orthorhombic, P212121 (no. 19), a = 16.5460(8) Å, b = 17.995(1) Å, c = 11.817(1) Å, V = 3518.5 Å3, Z = 4, Rgt(F) = 0.037, wRref(F2) = 0.099, T = 193 K.
Maisel H.   +3 more
doaj   +1 more source

Divergent trajectories of genome architecture and chromosome evolution in ferns and angiosperms

open access: yesNew Phytologist, EarlyView.
Variation in key fern genomic traits across families, mapped onto a summary phylogenetic tree. Summary Ferns and angiosperms represent the two largest vascular plant lineages but exhibit striking genomic and ecological contrasts. We investigated whether differences in genome size, chromosome architecture, GC content, and stomatal traits reveal ...
Petr Bureš   +14 more
wiley   +1 more source

Crystal structure of N,N′-bis(2-methyl-4,5-diphenylimidazo[ 1,5-b]pyridazin-7-yl)-1,3-diaminopropane ethanol solvate, C3H6(NH)2(C19H14N3)2 · C2H5OH

open access: yesZeitschrift für Kristallographie - New Crystal Structures, 2006
C43H42N8O, triclinic, P1̅ (no. 2), a = 9.997(2) Å, b = 12.046(2) Å, c = 15.635(3) Å, α = 90.84(3)°, β = 105.18(3)°, γ = 93.43(3)°, V = 1813.0 Å3, Z = 2, Rgt(F) = 0.071, wRref(F2) = 0.176, T = 193 K.
Irrgang T.   +3 more
doaj   +1 more source

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