Results 61 to 70 of about 66,767 (293)

Covariant Perturbations of Schwarzschild Black Holes [PDF]

, 2002
We present a new covariant and gauge-invariant perturbation formalism for dealing with spacetimes having spherical symmetry (or some preferred spatial direction) in the background, and apply it to the case of gravitational wave propagation in a ...
Acernese F, Ando M, Barish B, Bruni M, Bruni M, Challinor A D, Chandrasekhar S, Chris A Clarkson, Ellis G F R, Ellis G F R, Gerlach U H, Gerlach U H, Greenberg P J, Gundlach C, Gundlach C, Jezierski J, Kokkotas K D, Liu H, Maartens R, Mason D P, Nollert H P, Nollert H P, Price R H, Richard K Barrett, Sarbach O, Stewart J M, Thorne K S, Tsamparlis M, van Elst H, van Elst H, Willke B, Zafiris E, Zerilli F J   +32 more
core   +2 more sources

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

FEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero, Maria Kopsida, Nathalie Arendt, Hans Lennernäs, Markus Sjöblom, Femke Heindryckx   +5 more
wiley   +1 more source

Diffusion-Wave Type Solutions to the Second-Order Evolutionary Equation with Power Nonlinearities

Mathematics, 2022
The paper deals with a nonlinear second-order one-dimensional evolutionary equation related to applications and describes various diffusion, filtration, convection, and other processes.
Alexander Kazakov, Anna Lempert
doaj   +1 more source

Separating metric perturbations in near-horizon extremal Kerr spacetimes [PDF]

, 2017
Linear perturbation theory is a powerful toolkit for studying black hole spacetimes. However, the perturbation equations are hard to solve unless we can use separation of variables.
Chen, Baoyi, Stein, Leo C.
core   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Second-order boundary-value problems with variable exponents

Electronic Journal of Differential Equations, 2014
In this article, we study ordinary differential equations with p(x)-Laplacian and subject to small perturbations of nonhomogeneous Neumann conditions.
Giuseppina D'Agui
doaj  

Scalar fields on SL(2,R) and H^2 x R geometric spacetimes and linear perturbations

, 2004
Using appropriate harmonics, we study the future asymptotic behavior of massless scalar fields on a class of cosmological vacuum spacetimes. The spatial manifold is assumed to be a circle bundle over a higher genus surface with a locally homogeneous ...
Andersson L, Ashtekar A, Bonanos S, Buser P, Cahen M, Cesari L, Ellis G F R, Fischer A E, Jantzen R T, Kodama H, Koike T, Masayuki Tanimoto, Moncrief V, Newman E, Penrose R, Rendall A D, Ringström H, Scott P, Stephani H, Sugiura M, Tanimoto M, Tanimoto M, Tanimoto M, Tanimoto M, Tanimoto M, Taylor M E, Thurston W P, Wald R M   +27 more
core   +1 more source

Shape analysis of an adaptive elastic rod model [PDF]

, 2005
We analyze the shape semiderivative of the solution to an asymptotic nonlinear adaptive elastic rod model, derived in Figueiredo and Trabucho [Math. Mech. Solids, 9 (2004), pp. 331–354], with respect to small perturbations of the cross section. The rod
Figueiredo, Isabel, Leal, Carlos, Pinto, Cecília   +2 more
core   +1 more source

Long‐Term Follow‐Up of Chemotherapy‐Associated Biological Aging in Women With Early Breast Cancer

Aging and Cancer, EarlyView.
Women threated with adjuvant chemotherapy for early breast cancer have sustained long‐term increase in p16INK4a,, a robust marker of cell senescence, suggesting a chemotherapy‐associated age acceleration. p16INK4a as well as other biomarkers may identify patients at greatest risk for senescence‐related diseases of aging.
Hyman B. Muss, Alexis C. Wardell, Allison M. Deal, Kirsten A. Nyrop, Allison Ross, Yara G. Abdou, Jeffrey D. Aldrich, Lisa A. Cary, E. Claire Dees, Katherine E. Reeder‐Hayes, Emily M. Ray, Natalia Mitin, Denis Tsygankov   +12 more
wiley   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source