Results 111 to 120 of about 1,605,869 (375)

Perovskite–fullerene hybrid materials suppress hysteresis in planar diodes

open access: yesNature Communications, 2015
Solution-processed planar perovskite devices are highly desirable in a wide variety of optoelectronic applications; however, they are prone to hysteresis and current instabilities.
Jixian Xu   +17 more
semanticscholar   +1 more source

Planar L-Drawings of Directed Graphs

open access: yes, 2017
We study planar drawings of directed graphs in the L-drawing standard. We provide necessary conditions for the existence of these drawings and show that testing for the existence of a planar L-drawing is an NP-complete problem.
A Garg   +12 more
core   +2 more sources

Knee crepitus and osteoarthritis features in young adults following traumatic knee injury

open access: yesArthritis Care &Research, Accepted Article.
Objective This study explored the association between knee crepitus and the presence, and worsening, of structural osteoarthritis features and self‐reported outcomes in young adults following traumatic knee injury. Methods One‐year following anterior cruciate ligament reconstruction (ACLR), 112 participants (41 female participants; median age 28 years)
Jamon L Couch   +8 more
wiley   +1 more source

Planar Refrains [PDF]

open access: yes, 2017
My practice explores phenomenal poetic truths that exist in fissures between the sensual and physical qualities of material constructs. Magnifying this confounding interspace, my work activates specific instruments within mutable, relational systems of ...
nunes, stephen anthony
core   +1 more source

On the Total Number of Bends for Planar Octilinear Drawings

open access: yes, 2015
An octilinear drawing of a planar graph is one in which each edge is drawn as a sequence of horizontal, vertical and diagonal at 45 degrees line-segments. For such drawings to be readable, special care is needed in order to keep the number of bends small.
Bekos, Michael A.   +2 more
core   +1 more source

Enumeration of Planar Constellations

open access: yesAdvances in Applied Mathematics, 2000
The enumeration of transitive ordered factorizations of a given permutation is a combinatorial problem related to singularity theory. Let $n\ge 1$, $m \ge 2$, and let $\si_0$ be a permutation of $\Sn_n$ having $d_i$ cycles of length $i$, for $i \ge 1$. We prove that the number of $m$-tuples $(\si_1, \ldots ,\si_m)$ of permutatinos of $\Sn_n$ such that:
Bousquet-Melou, Mireille   +1 more
openaire   +4 more sources

The effect of foot orthoses on midfoot pain and the volume of bone marrow lesions in the midfoot: a randomized mechanism of action study

open access: yesArthritis Care &Research, Accepted Article.
Objective Foot orthoses are thought to improve pain by potentially modifying internal mechanical forces. To test this, we explored whether foot orthoses can modify patterns of bone marrow lesions (BMLs) in people with midfoot pain. Methods Forty‐two people were recruited with midfoot pain and MRI‐confirmed midfoot BMLs.
Jill Halstead   +4 more
wiley   +1 more source

The -annihilating-ideal hypergraph of commutative ring

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
The concept of the annihilating-ideal graph of a commutative ring was introduced by Behboodi et. al in 2011. In this paper, we extend this concept to the hypergraph for which we define an algebraic structure called -annihilating-ideal of a commutative ...
K. Selvakumar, V. Ramanathan
doaj   +1 more source

Recognizing and Drawing IC-planar Graphs

open access: yes, 2015
IC-planar graphs are those graphs that admit a drawing where no two crossed edges share an end-vertex and each edge is crossed at most once. They are a proper subfamily of the 1-planar graphs.
C Auer   +27 more
core   +1 more source

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