Results 61 to 70 of about 326,613 (309)

Comparison of matroid intersection algorithms for large circuit analysis [PDF]

open access: yes, 1997
This paper presents two approaches to symbolic analysis of large analog integrated circuits via simplification during the generation of the symbolic expressions. Both techniques are examined from the point of view of matroid theory.
Fernández Fernández, Francisco Vidal   +2 more
core   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

open access: yesFEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

Research on distribution network fault processing technology based on knowledge of graph.

open access: yesPLoS ONE, 2023
Safety and reliability are the basis of the development of a distribution network. To analyze the risk transmission process in the distribution network and ensure the safe and reliable operation of the power system, this paper intends to use the ...
Qiang Li   +4 more
doaj   +1 more source

A Novel (DDCC-SFG)-Based Systematic Design Technique of Active Filters [PDF]

open access: yes, 2013
This paper proposes a novel idea for the synthesis of active filters that is based on the use of signal-flow graph (SFG) stamps of differential difference current conveyors (DDCCs).
Fakhfakh, M., Pierzchala, M.
core   +1 more source

Measuring edge importance: a quantitative analysis of the stochastic shielding approximation for random processes on graphs [PDF]

open access: yes, 2013
Mathematical models of cellular physiological mechanisms often involve random walks on graphs representing transitions within networks of functional states.
Schmidt, Deena R, Thomas, Peter J
core   +2 more sources

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

open access: yesFEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang   +8 more
wiley   +1 more source

The medial graph and voltage- current duality

open access: yesDiscrete Mathematics, 1992
The author examines both current graphs and voltage graphs, utilizing the medial graph: a 4-regular graph derived from an imbedded graph encoding both the primal and the dual graphs. New insights into voltage-current duality, including wrapped coverings, are obtained. A method is developed for simultaneously giving a voltage and a current assignment on
openaire   +2 more sources

Embeddings of Product Graphs Where One Factor is a Hypercube [PDF]

open access: yes, 2011
Voltage graph theory can be used to describe embeddings of product graphs if one factor is a Cayley graph. We use voltage graphs to explore embeddings of various products where one factor is a hypercube, describing some minimal and symmetrical embeddings.
Turner, Bethany
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

PARP inhibitors elicit distinct transcriptional programs in homologous recombination competent castration‐resistant prostate cancer

open access: yesMolecular Oncology, EarlyView.
PARP inhibitors are used to treat a small subset of prostate cancer patients. These studies reveal that PARP1 activity and expression are different between European American and African American prostate cancer tissue samples. Additionally, different PARP inhibitors cause unique and overlapping transcriptional changes, notably, p53 pathway upregulation.
Moriah L. Cunningham   +21 more
wiley   +1 more source

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