Results 51 to 60 of about 6,523,303 (221)

Geology, mineralogy, structure and texture, geochemistry and genesis of the Golestan Abad iron oxide- apatite deposit (East of Zanjan)

Journal of Economic Geology, 2020
Introduction Iron oxide-apatite deposits (IOA) are considered to be Kirune-type iron ores which have been formed during Proterozoic to Tertiary eras in different parts of the world.
Shiva Kordian, Mir Ali Asghar Mokhtari, Hossein Kouhestani, Somayeh Veiseh   +3 more
doaj   +1 more source

A consensus bacterial 6-phytase variant maintained growth, bone quality and carcass characteristics of broilers fed corn-soy diets without added inorganic phosphate and with a full matrix applied, during 0 to 42 days of age

Journal of Applied Poultry Research
Summary: Inorganic phosphate (iP) is added to broiler diets to meet phosphorus (P) requirements, but it is expensive and reduces production sustainability.
A. Bello, E.B. Sobotik, G.S. Archer, L. Marchal, Y. Dersjant-Li, J. Remus   +5 more
doaj   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

FEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi, João C. Encarnação, Valeria Napolitano, Grzegorz Dubin, Grzegorz Popowicz, Karl Andersson, U. Helena Danielson   +6 more
wiley   +1 more source

Bethe ansatz and current distribution for the TASEP with particle-dependent hopping rates [PDF]

, 2006
Using the Bethe ansatz we obtain in a determinant form the exact solution of the master equation for the conditional probabilities of the totally asymmetric exclusion process with particle-dependent hopping rates on Z.
Schütz, G. M., Rákos, Attila Gábor, Rakos, A.   +2 more
core   +1 more source

Total positivity of the discrete spline collocation matrix

Journal of Approximation Theory, 1983
AbstractFor an integer k ⩾ 1, let t:=(ti), be a non-decreasing real sequence with ti $̌ti, k, and let Ni,k,t(x):= (¦ti + 1,…,ti + k¦ − ¦ti,…, tj, k − 1¦)(. − x)k, 1. It is wellknown that Ni,k,t are B-splines of order k for the knot sequence t. Suppose that μ:= (μj)∞∞ is a sequence of integers and τj:= tμj. Then Nj,k,τ allows the representation Nj,k,τ =
openaire   +2 more sources

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

FEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg, Martine Hjeltnes, Josephine Krieger, Joshua E. Elias, Maria Stensland, Kristian Holm, Xiaojun Jiang, Chuki Khangsar, Tuula A. Nyman, Arthur Kaser, Johannes R. Hov, Tom H. Karlsen, Nicole C. Kaneider, Frode L. Jahnsen, Georg Schneditz   +14 more
wiley   +1 more source

The general totally positive matrix completion problem with few unspecified entries

The Electronic Journal of Linear Algebra, 2000
For \(m\times n\) partial totally positive matrices with exactly one unspecified entry, the set of positions for that entry that guarantee completability to a totally positive matrix are characterized. They are the positions \((i,j)\), \(i+j\leq 4\) and the positions \((i,j)\), \(i+j\geq m+n-2\).
Fallat, Shaun M., Johnson, Charles R., Smith, Ronald L.   +2 more
openaire   +3 more sources

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

FEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt, Ana‐Maria Sandru, Georg Vucak, Sebastian Didusch, Biljana Riemelmoser, Karin Ehrenreiter, Markus Hartl, Lukas A. Huber, Manuela Baccarini   +8 more
wiley   +1 more source

Another Proof of the Total Positivity of the Discrete Spline Collocation Matrix

Journal of Approximation Theory, 1996
In [J. Approximation Theory 84, No. 3, 247-264 (1996; Zbl 0863.41006)] \textit{K. M. Mørken} gave necessary and sufficient conditions for a minor of a discrete B-spline collocation matrix to be strictly positive, correcting an earlier theorem of \textit{R. Q. Jia} [J. Approximation Theory 39, 11-23 (1983; Zbl 0515.41010)].
openaire   +1 more source