Results 121 to 130 of about 6,714 (280)
On $k$-Super Graceful Labeling of Graphs
, 2018 Let $G=(V(G),E(G))$ be a simple, finite and undirected graph of order $p$ and size $q$. For $k\ge 1$, a bijection $f: V(G)\cup E(G) \to \{k, k+1, k+2, \ldots, k+p+q-1\}$ such that $f(uv)= |f(u) - f(v)|$ for every edge $uv\in E(G)$ is said to be a $k$-super graceful labeling of $G$.
Lau, Gee-Choon +2 more
openaire +3 more sources
Early evolutionary history of the seed
Biological Reviews, EarlyView.ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman +2 more
wiley +1 more source
, 2012 The Graceful Tree Conjecture was published almost 40 years ago and nowadays it is still an open problem. It seems as difficult to solve as it is to enunciate: every tree admits a vertex labeling on 0, 1, ..., n-1 such that the set of values of the differences of the numbers assigned to the ends of each edge is the set {1, 2, ..., n-1}.
openaire +1 more source
The power of many: when genetics met yeasts and high‐throughput
Biological Reviews, EarlyView.ABSTRACT In recent years, complex technological capabilities have evolved, driven by the need to solve complex and integrative biological questions through global analyses. New equipment allows the scaling up and automation of processes which previously were carried out on a very limited scale.
Víctor A. Tallada, Víctor Carranco
wiley +1 more source
On graceful labelings of trees
, 2018 We prove via a composition lemma, the Kotzig-Ringel-Rosa conjecture, better known as the Graceful Labeling Conjecture. We also prove via a stronger version of the composition lemma a stronger form of the Graceful Labeling Conjecture.
openaire +2 more sources
Elaborating the Motivations and Attitudes Driving Interest in Voluntary Biodiversity Credits
Business Strategy and the Environment, EarlyView.ABSTRACT Global biodiversity loss has prompted the search for new sources of conservation finance, such as voluntary biodiversity credits (VBCs). However, despite optimistic market projections, current uptake of VBCs is limited. Adopting an interpretive approach, we analyse 21 semistructured interviews with early market actors (buyers, sellers ...
Gamze Yakar‐Pritchard +5 more
wiley +1 more source
Clinical Anatomy, EarlyView.ABSTRACT The connective tissue support of female pelvic viscera—endopelvic fascia—has been studied in fetal and immunohistochemical models to demonstrate its relationship with the autonomic nerves of the female pelvis. Due to a paucity of literature examining the gross anatomical relationships between endopelvic fascia and autonomic nerves in adult ...
Stephen Magliocchetti +5 more
wiley +1 more source
Journal of Consumer Behaviour, Volume 24, Issue 2, Page 655-672, March 2025.ABSTRACT Consumers' increasing environmental concerns are prompting a shift in fashion consumption, fueling the remarkable growth of the second‐hand market. Over the last decade, this trend has spurred the emergence of a plethora of online platforms dedicated to the resale of pre‐loved fashion items.
Gabriele Murtas, Giuseppe Pedeliento
wiley +1 more source
Intramolecular N···F Pnictogen Bond Mitigates the Explosive Behavior of Azido‐L‐Phenylalanines
ChemistryEurope, EarlyView.An intramolecular N···F pnictogen bond is the key for the chemical stabilization of the fluorinated azido‐L‐phenylalanines, mitigating the risk of explosion and thus facilitating the handling and storage of these materials. Organic azides are versatile intermediates but are plagued by intrinsic instability and potential explosiveness. Here, it is shown
Andrea Pizzi +5 more
wiley +1 more source
Porphyrin‐Geländer–Helical Conjugated Banister Type Porphyrin Dyads
Chemistry – A European Journal, EarlyView.Porphyrin arrays go chiral–A porphyrin Geländer macrocycle represents the intriguing prototype architecture of helically chiral butadiyne‐linked porphyrin arrays. This study combines synthetic, spectroscopic, and computational methods to shed light on its structure, chiroptical properties, and tunability, highlighting its promise for advancing ...
Joël F. Keller +2 more
wiley +1 more source