Results 41 to 50 of about 1,418,478 (304)
Product-free Lambek calculus is NP-complete
, 2012 In this paper, we prove that the derivability problems for product-free Lambek calculus and product-free Lambek calculus allowing empty premises are NP-complete.
Savateev, Yury, Yury Savateev
core +1 more source
Optimal Software Versioning Strategy Considering Customization and Consumer Deliberation Behavior
Journal of Theoretical and Applied Electronic Commerce Research, 2023 This study investigates the optimal versioning problem when a monopoly software provider bears the deliberation cost to help reduce consumer uncertainty about SaaS customization.
Wenjun Shu +3 more
doaj +1 more source
Free product decompositions in images of certain free products of groups
Journal of Algebra, 2007 This interesting paper can be summarized as follows. Let \(F\) be the free product of a finite family \(\mathcal A\) of groups and let \(n=|\mathcal A|\). Let \(m< n\) and let \(R\) be the normal closure in \(F\) of \(m\) elements of \(F\). Let \(R_{\mathcal F}=\bigcap_{K\in \mathcal F}K\), where \(\mathcal F\) is an s-filter, and let \(G=F/R_{\mathcal
Romanovskii, N, Wilson, J
openaire +1 more source
On the intersection of free subgroups in free products of groups [PDF]
Mathematical Proceedings of the Cambridge Philosophical Society, 2008 AbstractLet (Gi|i∈I) be a family of groups, letFbe a free group, and let$G = F \ast \mathop{\text{\Large $*$}}_{i\in I} G_i,$the free product ofFand all theGi.Let$\mathcal{F}$denote the set of all finitely generated subgroupsHofGwhich have the property that, for eachg∈Gand eachi∈I,$H \cap G_i^{g} = \{1\}.$By the Kurosh Subgroup Theorem, every element ...
Dicks, Warren, Ivanov, S. V.
openaire +4 more sources
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
Gynaecological product development facilitated through RP and Rapid Tooling [PDF]
, 2005 Published ArticleAtkinson distinguishes between four types of prototypes, categorised through its end-use: •Design or aesthetic prototypes •Geometrical prototypes •Functional prototypes •Technological prototypes Shigley and Mitchell define the ...
Booysen, G.J. +2 more
core
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
Free newspaper: New product or innovation [PDF]
Marketing (Beograd. 1991), 2008 Paper discuss a basic features of free newspaper or so-called 'free sheets' as popular product within printing media portfolio. From the marketing aspect that is no rare question if it is new product or innovation in the media landscape.
Vujić Nenad
doaj
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
INTERSECTING FREE SUBGROUPS IN FREE PRODUCTS OF GROUPS [PDF]
International Journal of Algebra and Computation, 2001 A subgroup H of a free product [Formula: see text] of groups Gα, α∈ I, is termed factor free if for every [Formula: see text] and β∈I one has SHS-1∩Gβ= {1} (by Kurosh theorem on subgroups of free products, factor free subgroups are free). If K is a finitely generated free group, denote [Formula: see text], where r(K) is the rank of K.
openaire +2 more sources