Results 131 to 140 of about 314,028 (293)

Inequalities for the derivative and polar derivative of lacunary polynomials

Journal of Mathematical Inequalities
Summary: In this paper, we study lacunary polynomials of degree \(n\) having \(s\)-fold zeros at the origin and the remaining zeros lying on or outside the boundary of a prescribed disk. This study in turns gives generalizations and improvements of some well-known results.
Arunrat, Nuttapong, Nakprasit, Keaitsuda Maneeruk   +1 more
openaire   +2 more sources

Computing the Fréchet Derivative of the Polar Decomposition

, 2016
We derive iterative methods for computing the Fréchet derivative of the map which sends a full-rank matrix $A$ to the factor $U$ in its polar decomposition $A=UH$, where $U$ has orthonormal columns and $H$ is Hermitian positive definite. The methods apply to square matrices as well as rectangular matrices having more rows than columns.
Gawlik, Evan S., Leok, Melvin
openaire   +2 more sources

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

Thermally immobilized cellulose acetate butyrate on silica particles as stationary phase for high-performance liquid chromatography

Anais da Academia Brasileira de Ciências
Reversed-phase liquid chromatography is the most widely used analytical technique nowadays. However, it generates a large volume of toxic organic residues and presents poor separations of small polar molecules in traditional stationary phases.
ISABELA SAYURI AMBROSIO, ALINE STÉFFANI SILVA, ALLYSON LEANDRO R. SANTOS, ROSANA MARIA N. ASSUNÇÃO, ANIZIO MARCIO DE FARIA   +4 more
doaj   +1 more source

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

FEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold, Janik Riese, Lancelot Seillier, Mark Kühnel, Julia Pannhausen, Charlotte O. J. Fröhlich, Christian Martin, Peter Boor, Matthias Saar, Danny D. Jonigk, Nadine T. Gaisa, Michael Rose   +11 more
wiley   +1 more source

On the polar derivative of a polynomial

, 2014
5 ...
Rather, N. A., Ahangar, S. H., Gulzar, Suhail   +2 more
openaire   +3 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Self-derived polar graphs [PDF]

Czechoslovak Mathematical Journal, 1976
openaire   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

FEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li, Xi Xiao, Lingbin Qi, Chanyi Li, Sirui Song, Jiaying Qin, Zhigang Xue, Jinfeng Xue, Huaifang Li   +8 more
wiley   +1 more source

Vanishing of nonlinear tidal Love numbers of Schwarzschild black holes

Physics Letters B
It is well known that asymptotically flat Schwarzschild black holes in general relativity in four spacetime dimensions have vanishing induced linear tidal response.
Massimiliano Maria Riva, Luca Santoni, Nikola Savić, Filippo Vernizzi   +3 more
doaj   +1 more source