Results 41 to 50 of about 27,372,603 (325)

Network topology drives population temporal variability in experimental habitat networks

Population Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu, J. Angus Webb, William D. Bovill, Elise L. King   +3 more
wiley   +1 more source

Large deviations for quantum Markov semigroups on the 2 x 2 matrix algebra

, 2008
Let $({\mathcal{T}}_{*t})$ be a predual quantum Markov semigroup acting on the full 2 x 2 matrix algebra and having an absorbing pure state. We prove that for any initial state $\omega$, the net of orthogonal measures representing the net of states ...
Comman, Henri
core   +1 more source

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

Population Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

Constraint Preconditioning for Indefinite Linear Systems

SIAM Journal on Matrix Analysis and Applications, 2000
The problem of finding good preconditioners for the numerical solution of indefinite linear systems is considered. Special emphasis is put on preconditioners that have a 2 × 2 block structure and that incorporate the (1,2) and (2,1) blocks of the ...
Carsten Keller, N. Gould, A. Wathen
semanticscholar   +1 more source

Matrix models from operators and topological strings, 2

, 2016
The quantization of mirror curves to toric Calabi--Yau threefolds leads to trace class operators, and it has been conjectured that the spectral properties of these operators provide a non-perturbative realization of topological string theory on these ...
Kashaev, Rinat, Marino, Marcos, Zakany, Szabolcs   +2 more
core   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

FEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere, Claudio Silva De Freitas, Adam Bates, Kenneth B. Storey, Pedro Beltran‐Alvarez, Katharina C. Wollenberg Valero   +5 more
wiley   +1 more source

Synthesis of Cis-Cisoid or Cis-Transoid Poly(Phenyl-Acetylene)s Having One or Two Carbamate Groups as Oxygen Permeation Membrane Materials

Membranes, 2020
Three new phenylacetylene monomers having one or two carbamate groups were synthesized and polymerized by using (Rh(norbornadiene)Cl)2 as an initiator. The resulting polymers had very high average molecular weights (Mw) of 1.4–4.8 × 106, with different ...
Yu Zang, Yinghui Lun, Masahiro Teraguchi, Takashi Kaneko, Hongge Jia, Fengjuan Miao, Xunhai Zhang, Toshiki Aoki   +7 more
doaj   +1 more source

N=1/2 Global SUSY: R-Matrix Approach

, 2012
R-matrix method is used to construct supersymmetric extensions of theta - Euclidean group preserving N = 1/2 supersymmetry and its three- parameter generalization.
Abou-Zeid, Alvarez-Gaume, Alvarez-Gaume, Ardalan, Ardalan, Aschieri, Aschieri, Borowiec, Borowiec, Castellani, Cezary Gonera, Chaichian, Chaichian, Chaichian, Chari, Chu, Chu, Corrigan, Doplicher, Doplicher, Douglas, Douglas, Drinfeld, Ferrara, Filk, Floreanini, Floreanini, Giller, Giller, Gonera, Grisaru, Groenewold, Ihl, Irisawa, Ivanov, Klemm, Klimyk, Kobayashi, Kobayashi, Kobayashi, Koch, Kontsevich, Kosiński, Kosiński, Kosiński, Kosiński, Kulish, Kulish, Leites, Lukierski, Lykken, Majid, Majid, Manin, Mavromatos, Michał Wodzisławski, Micu, Moyal, Nazaryan, Oeckl, Pengpan, Reshetikhin, Schomerus, Schwenk, Seiberg, Seiberg, Sykora, Szabo, Wess, West, Wilde, Witten, Woronowicz, Zakrzewski, Zupnik   +74 more
core   +1 more source

Decoding the dual role of autophagy in cancer through transcriptional and epigenetic regulation

FEBS Letters, EarlyView.
Transcriptional and epigenetic regulation controls autophagy, which exerts context‐dependent effects on cancer: Autophagy suppresses tumorigenesis by maintaining cellular homeostasis or promotes tumor progression by supporting survival under stress. In this “In a Nutshell” article, we explore the intricate mechanisms of the dual function of autophagy ...
Young Suk Yu, Ik Soo Kim, Sung Hee Baek
wiley   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

FEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro, Marco Cellani, Cristina Scielzo   +2 more
wiley   +1 more source