Results 41 to 50 of about 4,456,043 (294)

The nature of most probable paths at finite temperatures

open access: yes, 2003
We determine the most probable length of paths at finite temperatures, with a preassigned end-to-end distance and a unit of energy assigned to every step on a $D$-dimensional hypercubic lattice.
Bhattacharyya, Pratip
core   +1 more source

Recent Progress of Protein Tertiary Structure Prediction

open access: yesMolecules
The prediction of three-dimensional (3D) protein structure from amino acid sequences has stood as a significant challenge in computational and structural bioinformatics for decades.
Qiqige Wuyun   +7 more
doaj   +1 more source

Optimal Hidden Node Area for Enhancing Routing Protocol Performance in IEEE 802.11 Multihop MANETs

open access: yesJournal of Electrical and Computer Engineering, 2011
The prevalence of hidden node areas in IEEE 802.11 multihop MANETs continues to hinder the performance of routing protocols. This letter presents an analytical model that relates the hidden node area to the hop distance between two communicating nodes ...
Emeka Egbogah   +2 more
doaj   +1 more source

Sagittal alignment based on inflection point and its differences according to age groups

open access: yesJournal of Orthopaedic Surgery, 2020
Purpose: We have always used the standard anatomical landmark vertebrae to measure the sagittal alignment. Instead, scoliosis has been evaluated by the end vertebrae in the coronal plane. There have been clinical studies to investigate sagittal alignment
Moon Soo Park   +7 more
doaj   +1 more source

End-to-end Distance from the Green's Function for a Hierarchical Self-Avoiding Walk in Four Dimensions

open access: yes, 2002
In [BEI] we introduced a Levy process on a hierarchical lattice which is four dimensional, in the sense that the Green's function for the process equals 1/x^2.
Brydges, David C., Imbrie, John Z.
core   +1 more source

Kinetics of Contact Formation and End-to-End Distance Distributions of Swollen Disordered Peptides [PDF]

open access: yesBiophysical Journal, 2009
Unstructured polypeptide chains are subject to various degrees of swelling or compaction depending on the combination of solvent condition and amino acid sequence. Highly denatured proteins generally behave like random-coils with excluded volume repulsion, whereas in aqueous buffer more compact conformations have been observed for the low-populated ...
A. Soranno   +3 more
openaire   +4 more sources

Long-distance entanglement and quantum teleportation in XX spin chains

open access: yes, 2007
Isotropic XX models of one-dimensional spin-1/2 chains are investigated with the aim to elucidate the formal structure and the physical properties that allow these systems to act as channels for long-distance, high-fidelity quantum teleportation.
E. I. Kuznetsova   +4 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Performance Analysis of Two-Hop Cooperative MIMO transmission with Relay Selection in Rayleigh Fading Channel

open access: yes, 2009
Wireless relaying is one of the promising solutions to overcome the channel impairments and provide high data rate coverage that appears for beyond 3G mobile communications.
Kabir, Humaun   +4 more
core   +1 more source

Behavior of a polymer chain in a critical binary solvent

open access: yes, 1998
We present a field-theoretic renormalization group analysis of a polymer chain immersed in a binary good solvent close to its critical demixing point. We first show that this problem can be mapped on a bicritical field theory, i.e.
Amit D.   +9 more
core   +1 more source

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