Results 41 to 50 of about 45,774 (276)

Role of CX3CR1 receptor in monocyte/macrophage driven neovascularization.

PLoS ONE, 2013
Monocyte/macrophages are implicated in initiation of angiogenesis, tissue/organ perfusion and atherosclerosis biology. We recently showed that chemokine receptor CX(3)CR1 is an essential regulator of monocyte/macrophage derived smooth muscle cell ...
Arun H S Kumar, Kenneth Martin, Elizebeth C Turner, Chirlei K Buneker, Karim Dorgham, Philippe Deterre, Noel M Caplice   +6 more
doaj   +1 more source

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

TRIMETAZIDINE INFLUENCE ON FILTRATION AND TUBULOINTERSTITIAL FUNCTION OF KIDNEYS IN ISCHEMIC HEART DISEASE PATIENTS WITH CHRONIC HEART FAILURE AND RENAL DYSFUNCTION

Российский кардиологический журнал, 2018
Aim.  Evaluation of trimetazidine influence on the parameters of filtration and tubulo-interstinal function of kidneys in angina patients of II-III functional class (FC) and stable chronic heart failure (CHF) of II-III FC with chronic kidney disease (CKD)
N. A. Koziolova, I. I. Kolegova, M. V. Surovtseva   +2 more
doaj   +1 more source

Characterizations of rectangular totally and strictly totally positive matrices

, 2010
An n×m real matrix A is said to be totally positive (strictly totally positive) if every minor is nonnegative (positive). In this paper, we study characterizations of these classes of matrices by minors, by their full rank factorization and by their thin
Ricarte, Beatriz, Cantó, Rafael, Urbano, Ana M.   +2 more
core   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 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

Inner totally positive matrices

, 2004
Suppose A∈Mn is a staircase matrix with row and column staircase sequences ρ={ρ(1),ρ(2),…,ρ(n)}, γ={γ(1),γ(2),…,γ(n)}. A minor A(α;β)=det(A[α|β]) with α={α1…,αk},β={β1,…,βk} is said to be an inner minor of A if αi⩽γ(βi),βi⩽ρ(αi) for i=1,2,…,k.
Gladwell, G.M.L.
core   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +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

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

Molecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel, Peyman Zarrineh, Nathnael T. Tuffa, Jigar H. Sheth, Sumitra Mohan, Mudassar Iqbal, Sankari Nagarajan   +6 more
wiley   +1 more source