Results 31 to 40 of about 854,777 (264)

Reading and thinking about International Polar Years: five recent books [PDF]

open access: yes, 2013
Within the polar science community the Polar (and Geophysical) Years represent signal events. We often read, largely within geoscience literature, that those events represented positive and dramatic steps forward in international science.
Dave Carlson, Carlson, Dave
core   +1 more source

A new megastigmane, known porphyrinic and galloylated bioactive derivatives from the leaves of

open access: yesJournal of Chemical Research, 2022
Investigation of the non-polar (rich in chlorophyll) and polar fractions of the ethyl acetate extract of Gymnosporia senegalensis (Lam.) Loes. leaves led to the isolation of nine compounds, including one new megastigmane derivative, (3 R* ,5 S* ,6 R* ,7 ...
Simplice Jöel Tatsimo Ndendoung   +5 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Review of 100 facts: polar lands; 365 penguins; Amazing Arctic & Antarctic projects you can build yourself; Apun: the Arctic snow; Matthew Henson: the quest for the North Pole; Polar bears in danger; Polar regions; Race to the South Poleetc.

open access: yes, 2010
The polar regions have captured the world’s attention, and children’s book authors and publishers are no exception. These dozen titles are just a sample of the bucketload of polar-themed children’s books that have been published during the last couple of
Goldman, Helle
core   +1 more source

Notes on Erdös-Lax and Turán-type polynomial inequalities

open access: yesDemonstratio Mathematica
In this study, we investigate several well-established Erdös-Lax and Turán-type inequalities that connect the sup-norms of a univariate polynomial with complex coefficients and its ordinary derivative in the complex plane to those concerning the polar ...
Singh Mayanglambam Singhajit   +1 more
doaj   +1 more source

Some Bounds for the Polar Derivative of a Polynomial

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2018
The polar derivative of a polynomial p(z) of degree n with respect to a complex number α is a polynomial np(z)+α-zp′(z), denoted by Dαp(z). Let 1≤R≤k. For a polynomial p(z) of degree n having all its zeros in z≤k, we investigate a lower bound of modulus ...
Jiraphorn Somsuwan   +1 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

In memory of Torgny Vinje—a genuine polar scientist [PDF]

open access: yes, 2016
No abstract available.(Published: 31 May 2016)Citation: Polar Research 2016, 35, 32211,http://dx.doi.org/10.3402/polar.v35 ...
Gerland, Sebastian   +5 more
core   +1 more source

Sharp Estimation Type Inequalities for Lipschitzian Mappings in Euclidean Sense on a Disk

open access: yesJournal of Function Spaces, 2021
Some sharp trapezoid and midpoint type inequalities for Lipschitzian bifunctions defined on a closed disk in Euclidean sense are obtained by the use of polar coordinates. Also, bifunctions whose partial derivative is Lipschitzian are considered.
M. Rostamian Delavar   +2 more
doaj   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

open access: yesFEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy