Results 71 to 80 of about 1,161 (229)

Total Roman Reinforcement in Graphs

Discussiones Mathematicae Graph Theory, 2019
A total Roman dominating function on a graph G is a labeling f : V (G) → {0, 1, 2} such that every vertex with label 0 has a neighbor with label 2 and the subgraph of G induced by the set of all vertices of positive weight has no isolated vertex.
Ahangar H. Abdollahzadeh, Amjadi J., Chellali M., Nazari-Moghaddam S., Sheikholeslami S.M.   +4 more
doaj   +1 more source

Chilean science teachers' conceptualisations of disability when teaching students with autism

British Educational Research Journal, EarlyView.
Abstract This study examines how Chilean secondary science teachers conceptualise disability when teaching students with autism in integrated classroom settings. Grounded in critical disability studies, the research employs a qualitative story‐completion method, using a fictional classroom scenario to prompt teachers to construct narratives that reveal
Alexis Gonzalez‐Donoso, Fabian Arroyo‐Rojas   +1 more
wiley   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

Biological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón, José A. Sánchez‐Zapata, Travis L. DeVault, Wayne M. Getz, Zebensui Morales‐Reyes, Daniel Redondo‐Gómez, Lara Naves‐Alegre, Solange A. Batista‐Nunes, Esther Sebastián‐González, Juan M. Pérez‐García, Kelly A. Waters, Thijs van Overveld, Craig Smith, Nuria Selva, Thomas A. Schlacher, Graeme Ruxton, Jesús Rodríguez, Martina‐M. Quaggiotto, Paula L. Perrig, Norman Owen‐Smith, Thomas M. Newsome, Isabel Navas, Yoshihiro Nakashima, Ana Mateos, Carlos Martínez‐Carrasco, Daniel Martín‐Vega, Berta Martín‐López, Antoni Margalida, Sergio A. Lambertucci, Adam Kane, Kevin Healy, Akane Hashizume, Antonio J. García‐Fernández, José A. Donázar, M. Eric Benbow, James C. Beasley, Philip S. Barton, Kathleen A. Alexander, Eneko Arrondo   +38 more
wiley   +1 more source

Interior hop Roman dominating function in graphs

Annals of Communications in Mathematics
Let G = (V (G), E(G)) be a simple non-complete graph and let ξ : V → {0, 1, 2} be an HRDF on G. For each j ∈ {0, 1, 2}, let Vj = {x ∈ V (G) : ξ(x) = j}. Then ξ = (V0, V1, V2). A function ξ is an interior hop Roman dominating function (InHRDF) on G if for each v ∈ V0, there exists u ∈ V2 such that dG(u, v) = 2, and eitherV1 = V (G) or for every w ∈ V2 ...
openaire   +1 more source

Navigating the Double Edge of Product‐Service Systems: User Behavior, Adoption, and Rebound Effects

Business Strategy and the Environment, EarlyView.
ABSTRACT Product‐service systems (PSS) have been considered a promising approach to operationalizing the circular economy. Although many studies have outlined the potential sustainability gains of PSS solutions, it is still unclear what factors drive PSS adoption and how behavioral changes result in rebound effects, undermining their potential ...
Marina Fernandes Aguiar, Daniel Guzzo, Janaina Mascarenhas, Daniela C. A. Pigosso   +3 more
wiley   +1 more source

Tensions of Sustainability Logics: Performance of a Company Utilizing a Sustainable Business Model

Business Strategy and the Environment, EarlyView.
ABSTRACT In recent years, companies have used sustainable business models to gain a competitive advantage. However, there are tensions due to the inconsistency between social, environmental, and economic logic in sustainable business models, making it difficult for companies to change. To understand the existing tensions and interactions between logics,
Ann‐Kristin Thienemann
wiley   +1 more source

Corporate Dynamic Eco‐Innovation Capability and Carbon Emission Reduction: Evidence From African Listed Firms With the Role of Institutional Pressures

Business Strategy and the Environment, EarlyView.
ABSTRACT Despite the global emphasis on simultaneous achievement of higher growth and lower pollution (green growth), the dynamic link between eco‐innovation and CO2 emissions remains inadequately understood globally and specifically in Africa, with a complex and diverse institutional and regulatory landscape.
Idorenyin J. Okon, Adeolu O. Adewuyi, Alex O. Acheampong   +2 more
wiley   +1 more source

Perfect Roman {3}-Domination in Graphs: Complexity and Bound of Perfect Roman {3}-Domination Number of Trees

Journal of Mathematics
A perfect Roman 3-dominating function on a graph G=V,E is a function f:V⟶0,1,2,3 having the property that if fv=0, then ∑u∈Nvfu=3, and if fv=1, then ∑u∈Nvfu=2 for any vertex v∈V.
Ahlam Almulhim
doaj   +1 more source

On the outer independent total double Roman dominating functions

Let $\{0,1,\dots, t\}$ be abbreviated by $[t].$ A double Roman dominating function (DRDF) on a graph $Γ=(V,E)$ is a map $l:V\rightarrow [3]$ satisfying \textrm{(i)} if $l(r)=0$ then there must be at least two neighbors labeled 2 under $l$ or a neighbor $r'$ with $l(r')=3$; and \textrm{(ii)} if $l(r)=1$ then $r$ must be adjacent to a vertex $r'$ such ...
Ahangar, H. Abdolahzadeh, Chellali, M., Sheikholeslami, S. M., Valenzuela-Tripodoro, J. C.   +3 more
openaire   +2 more sources

How Transformational Supply Chain Leadership Affects Financial and Environmental Performance: The Mediating Role of Firm Resilience to Supply Disruption

Business Strategy and the Environment, EarlyView.
ABSTRACT Existing literature indicates that transformational leadership in supply chains is critical to sustainability; however, little is known about how this leadership influences sustainability. The empirical literature has provided minimal focused analysis of transformational supply chain leadership and its effects on sustainability performance ...
Ishmael Nanaba Acquah, Isaac Tetteh Charnor, Mavis Agbodza   +2 more
wiley   +1 more source