Results 61 to 70 of about 859,523 (281)

Two sided markets, competitive bottlenecks and exclusive contracts [PDF]

, 2005
We provide a framework for analyzing two-sided markets that allows for different degrees of product differentiation on each side of the market. When platforms are viewed as homogenous by sellers but heterogeneous by buyers, we show that “competitive ...
Armstrong, M., Wright, J.
core  

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

On the super edge-magic deficiency of join product and chain graphs

Electronic Journal of Graph Theory and Applications, 2019
A graph G of order ∣V(G)∣ = p and size ∣E(G)∣ = q is called super edge-magic if there exists a bijection f : V(G) ∪ E(G) → {1, 2, 3, ⋯, p + q} such that f(x) + f(xy) + f(y) is a constant for every edge xy ∈ E(G) and f(V(G)) = {1, 2, 3, ⋯, p}. Furthermore,
Anak Agung Gede Ngurah, Rinovia Simanjuntak   +1 more
doaj   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Some Results on incidence coloring, star arboricity and domination number [PDF]

, 2012
Two inequalities bridging the three isolated graph invariants, incidence chromatic number, star arboricity and domination number, were established. Consequently, we deduced an upper bound and a lower bound of the incidence chromatic number for all graphs.
Shiu, Wai Chee, Sun, Pak Kiu
core  

Interval-valued fuzzy graphs

, 2012
We define the Cartesian product, composition, union and join on interval-valued fuzzy graphs and investigate some of their properties. We also introduce the notion of interval-valued fuzzy complete graphs and present some properties of self complementary
Akram, Akram, Alaoui, Atanassov, Bhattacharya, Bhutani, Bhutani, Bhutani, Gorzalczany, Gorzalczany, Harary, Mathew, Mendel, Mendel, Mordeson, Mordeson, Mordeson, Muhammad Akram, Nagoorgani, Perchant, Rosenfeld, Roy, Sunitha, Turksen, Wieslaw A. Dudek, Zadeh, Zadeh, Zadeh   +27 more
core   +1 more source

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

Molecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller, Susanne Ebner, Carmen Haselrieder, Julia K. Günther, Astrid Drasche, Sophie Strich, Chiara Volani, Andrea Medici, Aleksandar Nikolajevic, Alex Deltedesco, Johannes E. Sigmund, Michael J. Blumer, Martin Hermann, Johanna Vanacker, Gerald Brandacher, Eduard Stefan, Omar Torres‐Quesada, Jakob Troppmair   +17 more
wiley   +1 more source

Conjectures About Wheels Without One Edge with Paths and Cycles

Mathematics
The crossing number cr(G) of a graph G is the minimum number of edge crossings over all drawings of G in the plane. The main aim of this paper is to give the crossing numbers of the join products G*+Pn and G*+Cn for the connected graph G* obtained by ...
Michal Staš, Mária Timková
doaj   +1 more source

Product version of reciprocal degree distance of composite graphs

Communications in Combinatorics and Optimization, 2018
In this paper‎, ‎we present the upper bounds for the product version of reciprocal degree distance of the tensor product‎, ‎join and strong product of two graphs in terms of other graph invariants including the Harary index and Zagreb indices‎.
K‎. ‎Pattabiraman
doaj   +1 more source

Szeged-type indices of subdivision vertex-edge join (SVE-join)

Main Group Metal Chemistry, 2021
In this article, we compute the vertex Padmakar-Ivan (PIv) index, vertex Szeged (Szv) index, edge Padmakar-Ivan (PIe) index, edge Szeged (Sze) index, weighted vertex Padmakar-Ivan (wPIv) index, and weighted vertex Szeged (wSzv) index of a graph product ...
Asghar Syed Sheraz, Binyamin Muhammad Ahsan, Chu Yu-Ming, Akhtar Shehnaz, Malik Mehar Ali   +4 more
doaj   +1 more source