Results 51 to 60 of about 317,720 (289)

Hydrogen radical additions to unsaturated hydrocarbons and the reverse β-scission reactions: modeling of activation energies and pre-exponential factors [PDF]

, 2009
The group additivity method for Arrhenius parameters is applied to. hydrogen-addition to alkenes and alkynes and the reverse beta-scission reactions, an important famliy of reactions in thermal processes based on radical chemistry.
Marin, Guy, Reyniers, Marie-Françoise, Sabbe, Maarten, Waroquier, Michel   +3 more
core   +1 more source

Hierarchically Engineered Multi‐Enzyme Nanoreactors for in vitro Drug Biosynthesis and Pathway Transplantation Into Cells

Advanced Materials, EarlyView.
A hierarchically structured metal–organic framework (eMIL) is shown to host the complete six‐enzyme biosynthesis pathway for the anti‐cancer pigment violacein, reshaping reaction dynamics and multiplying in vitro yields. eMIL nanoreactors deliver this reconstituted bacterial multi‐protein system into mammalian cells, where cell‐derived substrates and ...
Ainur Sharip, Somayah S. Qutub, Manar M. Farooqui, Walaa Baslyman, Nida Khalfay, Lukman O. Alimi, Patricia Lopez Sanchez, Lingyun Zhao, Milena Chernyshevskaia, Giovanni Colombo, Niveen M. Khashab, Stefan T. Arold, Raik Grünberg   +12 more
wiley   +1 more source

Ultrafast Charge Carrier Dynamics in Layered CuO‐TiO2 Heterostructure via Time‐Resolved Soft X‐Ray Absorption Spectroscopy

Advanced Materials Interfaces, EarlyView.
Ultrafast carriers transfer dynamics in the layered CuO∖TiO2 heterostructure. ABSTRACT Understanding the charge carrier dynamics at the p‐n heterojunctions is indispensable for designing efficient photocatalysts. In this work, we used element‐specific time‐resolved soft X‐ray absorption spectroscopy (tr‐XAS) to investigate the ultrafast charge transfer
Abhishek Katoch, Kwangsik Jeong, Soohyung Park, Sunwoo Moon, Sang Han Park, Hyun S. Ahn   +5 more
wiley   +1 more source

Constrained basin stability for studying transient phenomena in dynamical systems

, 2016
Transient dynamics are of large interest in many areas of science. Here, a generalization of basin stability (BS) is presented: constrained basin stability (CBS) that is sensitive to various different types of transients arising from finite size ...
Donges, Jonathan, Jegminat, Jannes, Kurths, Jürgen, van Kan, Adrian   +3 more
core   +1 more source

Hydrogel‐Based 3D‐Printable Stretchable Pressure Sensor

Advanced Materials Technologies, EarlyView.
We present a carbon‐black‐functionalized double‐network granular hydrogel (DNGH) pressure sensor capable of detecting pressures from 200 Pa, equivalent to a light finger touch, up to 500 kPa. The sensor exhibits signal drifts below 3.5% after 800 cycles and response times around 80 ms. Leveraging this broad sensing range, we 3D print this material into
Tianyu Yuan, Chenzhuo Li, Antonia Georgopoulou, John M. Kolinski, Esther Amstad   +4 more
wiley   +1 more source

Criteria for the diagnosis of corticobasal degeneration [PDF]

, 2013
Current criteria for the clinical diagnosis of pathologically confirmed corticobasal degeneration (CBD) no longer reflect the expanding understanding of this disease and its clinicopathologic correlations.
Armstrong, Melissa J, Bak, Thomas H, Bhatia, Kailash P, Borroni, Barbara, Boxer, Adam L, Dickson, Dennis W, Grossman, Murray, Hallett, Mark, Josephs, Keith A, Kertesz, Andrew, Lang, Anthony E, Lee, Suzee E, Litvan, Irene, Miller, Bruce L, Reich, Stephen G, Riley, David E, Tolosa, Eduardo, Tröster, Alexander I, Vidailhet, Marie, Weiner, William J   +19 more
core   +1 more source

Neural Fields for Highly Accelerated 2D Cine Phase Contrast MRI

Advanced Science, EarlyView.
ABSTRACT 2D cine phase contrast (CPC) MRI provides quantitative information on blood velocity and flow within the human vasculature. However, data acquisition is time‐consuming, motivating the reconstruction of the velocity field from undersampled measurements to reduce scan times. In this work, neural fields are proposed as a continuous spatiotemporal
Pablo Arratia, Martin J. Graves, Mary McLean, Carolin Pirkl, Carola‐Bibiane Schönlieb, Timo Schirmer, Florian Wiesinger, Matthias J. Ehrhardt   +7 more
wiley   +1 more source

The Cannonball Model of Gamma Ray Bursts: Lines in the X-Ray Afterglow [PDF]

, 2001
Recent observations suggest that gamma-ray bursts (GRBs) and their afterglows are produced by jets of highly relativistic cannonballs (CBs), emitted in supernova explosions. The fully ionized CBs cool to a temperature below 4500 K within a day or two, at
Dar, Arnon, De Rujula, A.
core   +3 more sources

Weak localization of light by cold atoms: the impact of quantum internal structure [PDF]

, 2001
Since the work of Anderson on localization, interference effects for the propagation of a wave in the presence of disorder have been extensively studied, as exemplified in coherent backscattering (CBS) of light.
A. A. Golubentsev, A. Heiderich, A. Ishimaru, A. Lagendijk, A. R. Edmonds, A. S. Martinez, B. A. van Tiggelen, B. A. van Tiggelen, C. Cohen-Tannoudji, Christian Miniatura, Cord A. Müller, D. A. de Wolf, D. S. Saxon, D. S. Wiersma, Dominique Delande, E. Akkermans, E. E. Gorodnichev, F. C. MacKintosh, G. C. Wick, G. Labeyrie, G. Labeyrie, K. Blum, K. M. Watson, L. D. Barron, L. D. Landau, M. B. van der Mark, M. Born, M. C. W. van Rossum, M. I. Mishchenko, M. P. van Albada, M. P. van Albada, M. Rusek, M. Scully, P. de Vries, P. E. Wolf, P. W. Anderson, R. Berkovits, R. Loudon, S. Chakravarty, S. Chandrasekhar, T. Jonckheere, Th. M. Nieuwenhuizen, Thibaut Jonckheere, V. B. Berestetskii, W. M. Itano, Y. Kuga   +45 more
core   +3 more sources

Endoplasmic Reticulum Geometry Dictates Neuronal Bursting via Calcium Store Refill Rates and Exposes Selective Neuronal Vulnerability

Advanced Science, EarlyView.
The ER's continuous tubular network is maintained by ER‐shaping proteins whose mutation or dysregulation contributes to neurodegenerative diseases. Here, we show that ER morphology sets the speed of Ca2+ store replenishment between firing events. Disrupting ER continuity slows intra‐ER Ca2+ redistribution from extracellular refill (SOCE) sites, driving
Valentina Davi, Pierre Parutto, Yuyi Zhang, Tasuku Konno, Cecile Crapart, Raquel Pereira, John P. Franklin, Mosab Ali Awadelkareem, Daniel C Maddison, Michael J. Devine, Edgar R. Gomes, Joseph Chambers, Elena Koslover, Edward Avezov   +13 more
wiley   +1 more source