Results 61 to 70 of about 14,003 (274)

On rapid migration and accretion within disks around supermassive black holes

, 2011
Galactic nuclei should contain a cluster of stars and compact objects in the vicinity of the central supermassive black hole due to stellar evolution, minor mergers and gravitational dynamical friction.
Alexander, Armitage, Artymowicz, B. McKernan, Baruteau, Chang, Collin, Cordes, Crummy, Gierliński, Goodman, H. B. Perets, Ho, K. E. S. Ford, Kauffmann, Kormendy, Krolik, L. M. Winter, Levin, Lodato, Lyra, Masset, McKernan, McKernan, McKernan, Merritt, Miralda Escudé, Miralda Escudé, Morris, Nayakshin, Nelson, Noble, Ostriker, Paardekooper, Pepliński, Pepliński, Perets, Pier, Rauch, Remillard, Schödel, Shakura, Shlosman, Sirko, Subr, Syer, T. Yaqoob, Toropina, Vilkoviskij, W. Lyra, Winter   +50 more
core   +1 more source

A new mechanism for non-locality from string theory: UV-IR quantum entanglement and its imprints on the CMB [PDF]

, 2008
Puff field theories (PFT) arise as the decoupling limits of D3 branes in a Melvin universe and exhibit spatially non-local dynamics. Unlike other realizations of non-locality in string theory, PFTs have full SO(3) rotational symmetry.
Minton, Gregory, Sahakian, Vatche
core   +3 more sources

Brain‐Adhesive Bioelectronics With Shape‐Morphable and Biodegradable Properties for Stable Brain Signal Monitoring

Advanced Science, EarlyView.
A brain‐adhesive sensor (B‐Sensor) was developed by integrating a self‐healing biodegradable elastomer, a tissue‐adhesive hydrogel, and molybdenum electrodes. The B‐Sensor adheres to brain tissue, conforms to cortical curvatures, and maintains stable electrical performance over the intended period for reliable recording of spatiotemporal brain activity
Heewon Choi, Soeun Kim, Sumin Kim, Jaehyun Park, Soojung An, Sungjun Yoon, Mikyung Shin, Sangho Cho, Donghee Son   +8 more
wiley   +1 more source

Beyond Cartilage‐Inspired Supramolecular Polyurethane for Adaptive Impact‐Resistant Protection with Robustness, Self‐Healing, and Recyclability

Advanced Science, EarlyView.
Cartilage‐inspired supramolecular polyurethane–urea (PU‐BAMB) elastomers are developed by integrating hierarchical hydrogen bonding and π–π stacking interactions within a dynamically reconfigurable network. This synergistic supramolecular architecture overcomes the intrinsic trade‐off between rigidity and recoverability, imparting exceptional toughness,
Rou‐Han Lai, Chia‐An Chiu, Yi‐An Chen, Athis Watwiangkham, Yu‐Hung Cheng, Yan‐Heng Chen, Min‐Han Yu, Lung‐Yi Lu, Chun‐Hsien Chen, Yi‐Ting Chen, Wei‐Hsiang Liao, Shang‐Hsiu Hu, Hsin‐Lung Chen, Siriporn Jungsuttiwong, Ho‐Hsiu Chou   +14 more
wiley   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source

Upscaling Sodium‐Ion Battery Cells: From Aqueous Processing to Performance Assessment of Hard Carbon|Prussian White Pouch Cells

Advanced Energy Materials, EarlyView.
This study investigates the feasibility of scaling up Prussian White (PW)‐based cathode manufacturing at a pilot scale. Through careful PW dehydration combined with optimized aqueous processing, we report the stepwise development of industrially relevant 1 Ah pouch cells and evaluate their performance under various conditions.
Faduma M. Maddar, Katerina Gonos, Martand Singh, Jacob Compton, Daniel Atkinson, Matthew J. Capener, Mark Copley, Ivana Hasa   +7 more
wiley   +1 more source

Heteroduplex DNA position defines the roles of the Sgs1, Srs2, and Mph1 helicases in promoting distinct recombination outcomes. [PDF]

PLoS Genetics, 2013
The contributions of the Sgs1, Mph1, and Srs2 DNA helicases during mitotic double-strand break (DSB) repair in yeast were investigated using a gap-repair assay.
Katrina Mitchel, Kevin Lehner, Sue Jinks-Robertson   +2 more
doaj   +1 more source

The Challenging P‐Alkylation of Aromatic Phosphorus Heterocycles and Follow‐Up Reactions

ChemistryEurope, EarlyView.
P‐alkylation of λ3σ2‐phosphinines is hindered by weak nucleophilicity and scarce synthetic access, previously requiring multistep routes or extreme electrophiles. A direct ambient‐condition method is reported using 3,5‐bis(trimethylsilyl)‐phosphinine/B(C6F5)3 with esters or iso(thio)cyanates to generate stable 1‐R‐phosphininium salts.
Samantha Frank, Ádám Horváth, Duy Nguyen, Moritz J. Ernst, Simon Steinhauer, Zoltán Benkő, Christian Müller   +6 more
wiley   +1 more source

Methyl on the Bridge: 2‐Methyl Propellane as Precursor for 1,3‐Substituted 2‐Methylated Bicyclo[1.1.1]Pentanes

Chemistry – A European Journal, EarlyView.
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve, Mariana Gomes Manso, Tibo Van Eeckhoorn, Mark E. Light, Bruno Linclau   +4 more
wiley   +1 more source

Separable Roles for a Caenorhabditis elegans RMI1 Homolog in Promoting and Antagonizing Meiotic Crossovers Ensure Faithful Chromosome Inheritance.

PLoS Biology, 2016
During the first meiotic division, crossovers (COs) between homologous chromosomes ensure their correct segregation. COs are produced by homologous recombination (HR)-mediated repair of programmed DNA double strand breaks (DSBs). As more DSBs are induced
Marlène Jagut, Patricia Hamminger, Alexander Woglar, Sophia Millonigg, Luis Paulin, Martin Mikl, Maria Rosaria Dello Stritto, Lois Tang, Cornelia Habacher, Angela Tam, Miguel Gallach, Arndt von Haeseler, Anne M Villeneuve, Verena Jantsch   +13 more
doaj   +1 more source