Results 91 to 100 of about 1,578,241 (302)

Two loop detection mechanisms: a comparison [PDF]

open access: yes, 1997
In order to compare two loop detection mechanisms we describe two calculi for theorem proving in intuitionistic propositional logic. We call them both MJ Hist, and distinguish between them by description as `Swiss' or `Scottish'. These calculi combine in
Howe, J. M.   +3 more
core   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Effects of macrophages in OSCC progression

open access: yesFrontiers in Immunology
Macrophages are crucial immune cells within the tumor microenvironment (TME), involved in regulating tumor proliferation, invasion, metastasis, ECM remodeling, angiogenesis, and immunosuppression. Although more and more experimental evidence and clinical
Xiaodan Dong   +3 more
doaj   +1 more source

A Quasi-Lumped Element Series Array Resonator Antenna [PDF]

open access: yesRadioengineering, 2015
This paper presents a 6-element series array quasi-lumped element resonator antenna. The proposed antenna employs an interdigital capacitor in parallel with a straight strip conductor whose centre finger is shorted across the capacitor.
S. S. Olokede
doaj  

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Em direção ao ruído: loop de desaparecimentos ao rés do corpo

open access: yesPalíndromo
Este artigo se dedica a uma análise do disco Isto (2019), obra de Cildo Meireles realizada com a voz da locutora Íris Lettieri. Assim como em Isto o artista recorreu ao loop para reunir, sonoramente e sutilmente, ambos os lados do disco, a escrita deste
Caroline Alciones de Oliveira Leite
doaj   +1 more source

Prospecting the protein design landscape

open access: yesFEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona   +4 more
wiley   +1 more source

Two loop vertices and tree level multicollinear limits in QCD [PDF]

open access: yes, 2005
We present a summary of the methods required to solve loop-integrals and their reduction to Master Integrals. We then present the expansion in d = 4 - 2e of the Master Integrals required for the two loop massless vertex diagrams with three off-shell legs.
Birthwright, Thomas G.   +2 more
core  

Medical Diagnosis Based on Multi-threshold Fuzzy Petri Net with Loop

open access: yesJournal of Harbin University of Science and Technology
To settle the loop judgement issue of the medical diagnosis process, a multi-threshold fuzzy Petri net with loop (MTFPNL) is proposed to simulate the evidence-based medical diagnosis process of“ initial diagnosis-confirmation”.
ZHANG Xuanyu   +3 more
doaj   +1 more source

RNA‐related functions of BRCA2 in transcription, replication, and genome stability

open access: yesFEBS Letters, EarlyView.
Beyond its role in homologous recombination, BRCA2 regulates R‐loop homeostasis, DNA–RNA hybrid resolution, RNA polymerase II dynamics, and transcriptional activation. Disruption of any of these functions can contribute to genome instability, inflammatory signaling, and tumorigenesis. BRCA2 is a central tumor suppressor protein best known for its roles
Lucia Alvaro‐Aranda   +2 more
wiley   +1 more source

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