Results 71 to 80 of about 284,605 (257)
On explicit forms for ergodicity coefficients
Linear Algebra and its Applications, 1993 Suppose \(\| \cdot \|\) is any vector norm on row vectors constituting \(\mathbb{R}^ n\), and \(S_ n\) \((n \geq 2)\) the set of all \(n \times n\) stochastic matrices. The definition of an ergodicity coefficient \(\tau\) for \(P=\{p_{ij}\}\), \(P \in S_ n\) with respect to the norm \(\| \cdot \|\) is \(\tau(P)=\sup \{\| {\underset \sim x}^ T P ...
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FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
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Advances in Civil Engineering, 2019 In urban environment, it is often unavoidable for shallow tunnels to be constructed adjacent to existing pile foundations. To obtain the ground displacements and stresses induced by shallow tunneling and existing pile foundation loads, the key procedure ...
Caixia Guo +3 more
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Advanced Engineering Research, 2014 In fra mework of the geometrical diffraction theory, the explicit expressions for the pre s sure in waves arbitrarily re reflected N times from a contour, boundary surfaces of the cylindrical and spherical refle c tors are obtained.
N. V. Boyev +2 more
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Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
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An Explicit Formula for Local Densities of Quadratic Forms
Journal of Number Theory, 1998 Let \(S\) and \(T\) be two integral nondegenerate symmetric matrices of \(\mathbb{Z}_p\) of degree \(m\) and \(n\) respectively. Assume \(m>n\geq 1\). Then the local density of representing \(T\) by \(S\) is defined as \[ \alpha_p(T,S)=\lim_{t\to\infty}(p^t)^{n(n+1)/2-mn}A_t(T,S), \] where \(A_t(T,S)=\sharp\{X\in M_{m,n}(\mathbb{Z}_p/p^t):X^tSX\equiv T\
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Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
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FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
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FROM RULES TO DEVELOPMENT: GRAMMAR AND SECOND LANGUAGE ACQUISITION
Науковий вісник Чернівецького університету. Германська філологіяThis article examines the role of grammar in second language (L2) learning and teaching by critically reviewing major theoretical and empirical developments in second language acquisition (SLA) research.
Roman CHEPYSHKO
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FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
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