Results 81 to 90 of about 962,375 (304)

An estimate of ice wedge volume for a High Arctic polar desert environment, Fosheim Peninsula, Ellesmere Island [PDF]

The Cryosphere, 2018
Quantifying ground-ice volume on a regional scale is necessary to assess the vulnerability of permafrost landscapes to thaw-induced disturbance like terrain subsidence and to quantify potential carbon release. Ice wedges (IWs) are a ubiquitous ground-ice
C. Bernard-Grand'Maison, W. Pollard
doaj   +1 more source

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

Molecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova, Michele Montrone, Uday Rangaswamy, Francesco Diversi, Irene Schiavo, Denise Ferrarini, Roberta Di Florio, Irene Longo, Michele Coscia, Nicola Zamboni, Giorgia Demontis, Lisa Veghini, Vincenzo Corbo, Remo Sanges, Paul Heppenstall   +14 more
wiley   +1 more source

Triaxial tests on frozen ground: formulation and modelling [PDF]

, 2013
Artificial Ground Freezing (AGF) is a controllable process that can be used by engineers to stabilise temporarily the ground, provide structural support and/or exclude groundwater from an excavation until construction of the final lining provides ...
Casini, Francesca, Gens Solé, Antonio, Olivella Pastallé, Sebastià, Viggiani, Giulia   +3 more
core  

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

FEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz, Bruna Abreu, Cindy Mendes, Catarina Freitas‐Dias, Filipe Gonçalves, Fernanda Silva, José Ramalho, Saudade André, Vasco D. B. Bonifácio, Jacinta Serpa   +9 more
wiley   +1 more source

Quantum Melting of Spin Ice: Emergent Cooperative Quadrupole and Chirality

, 2010
A quantum melting of the spin ice is proposed for pyrochlore-lattice magnets Pr$_2TM_2$O$_7$ ($TM=$Ir, Zr, and Sn). The quantum superexchange Hamiltonian having a nontrivial magnetic anisotropy is derived in the basis of atomic non-Kramers magnetic ...
Onoda, Shigeki, Tanaka, Yoichi
core   +1 more source

Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains

FEBS Open Bio, EarlyView.
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth, Moritz Koch, Le‐Han Rössner, Johanna Eichhorn, Denys Pogoryelov, Matthias P. Mayer, Jude M. Przyborski   +6 more
wiley   +1 more source

Anisotropic backscatter in ice-penetrating radar data: potential mechanisms and implications [PDF]

, 2010
Airborne and ground-based radar have been used extensively in the past to measure ice thickness and to investigate the internal structure of ice sheets in terms of layering.
Drews, Reinhard, Eisen, Olaf, Rack, Wolfgang, Steinhage, Daniel, Weikusat, Ilka   +4 more
core  

Extensive degeneracy, Coulomb phase and magnetic monopoles in an artificial realization of the square ice model

, 2016
Artificial spin ice systems have been introduced as a possible mean to investigate frustration effects in a well-controlled manner by fabricating lithographically-patterned two-dimensional arrangements of interacting magnetic nanostructures.
A Farhan, B Canals, Benjamin Canals, C Castelnovo, C Nisoli, C Nisoli, C Phatak, CL Henley, D Thonig, DA Garanin, E Mengotti, EH Lieb, F Montaigne, G Möller, I Gilbert, IA Chioar, IA Chioar, IA Chioar, J Cumings, J Drisko, J Kimling, JM Porro, JP Morgan, JP Morgan, K Zeissler, L Anghinolfi, LJ Heyderman, ME Brooks-Bartlett, N Rougemaille, N Rougemaille, Nicolas Rougemaille, RF Wang, RF Wang, S Da Col, S Jamet, S Ladak, S Zhang, S Zhang, SV Isakov, T Fennell, V Kapaklis, Yann Perrin, Z Budrikis, Z Budrikis   +43 more
core   +3 more sources

YlmG1 is localized exclusively to the chloroplast envelope membrane and is involved in preprotein translocation in Arabidopsis thaliana

FEBS Open Bio, EarlyView.
Cytosolically synthesized chloroplast preproteins are translocated across the outer and inner envelope membranes through translocons called TOC and TIC, respectively. In green algae and plants, the TIC core is composed of essential membrane proteins, Tic12, Tic20, and Tic214.
Mengyi Li, Xueyang Zhao, Masato Nakai
wiley   +1 more source

Spitzer Space Telescope Spectroscopy of Ices toward Low-Mass Embedded Protostars [PDF]

, 2004
Sensitive 5-38 μm Spitzer Space Telescope and ground-based 3-5 μm spectra of the embedded low-mass protostars B5 IRS1 and HH 46 IRS show deep ice absorption bands superposed on steeply rising mid-infrared continua.
Blake, Geoffrey A., Boogert, A. C. Adwin, Brooke, Timothy Y., Brown, Joanna, Morris, Patrick, Noriega-Crespo, Alberto, Padgett, Deborah L., Sargent, Anneila I., Stapelfeldt, Karl R.   +8 more
core   +1 more source