Results 21 to 30 of about 6,681,031 (252)

The influence of the professional’s gender in the periodicity of Pap Test [PDF]

open access: yesRevista Brasileira em Promoção da Saúde, 2010
Objective: To assess the influence of the professional’s gender in the regularity of the Pap test. Methods: A descriptive study, with a qualitative approach, held in the period of September to November, 2008 with 83 users of the Family Health Strategy of
Francisco Antonio da Cruz Mendonça   +4 more
doaj  

Simulating the effect of reinforcement learning on neuronal synchrony and periodicity in the striatum

open access: yesFrontiers in Computational Neuroscience, 2016
The study of rhythms and oscillations in the brain is gaining attention. While it is unclear exactly what the role of oscillation, synchrony, and rhythm is, it appears increasingly likely that synchrony is related to normal and abnormal brain states and ...
Sebastien eHelie, Pierson J. Fleischer
doaj   +1 more source

A Briggs-Rauscher Reaction-based Spectrometric Assay to Determine Antioxidant Content in Complex Matrices in Low Technology Environments

open access: yesCHIMIA, 2021
The Briggs-Rauscher (BR) reaction is free radical based where the kinetics of formation of different iodide species leads to potentiometric and color oscillations. These oscillations were monitored in this study using a UV/Vis attenuated total reflection
Ankit Singhal   +3 more
doaj   +1 more source

Permutation test for periodicity in short time series data

open access: yesBMC Bioinformatics, 2006
Background Periodic processes, such as the circadian rhythm, are important factors modulating and coordinating transcription of genes governing key metabolic pathways.
Ptitsyn Andrey A   +2 more
doaj   +1 more source

Structure‐forward targeting of claudins with synthetic binders

open access: yesFEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

A New Chaotic System with Multiple Attractors: Dynamic Analysis, Circuit Realization and S-Box Design

open access: yesEntropy, 2017
This paper reports about a novel three-dimensional chaotic system with three nonlinearities. The system has one stable equilibrium, two stable equilibria and one saddle node, two saddle foci and one saddle node for different parameters.
Qiang Lai   +4 more
doaj   +1 more source

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

open access: yesFEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang   +2 more
wiley   +1 more source

Spatial and seasonal variation of the gonad index of Diadema antillarum (Echinodermata:Echinoidea) in the Canary Islands

open access: yesScientia Marina, 2006
Diadema antillarum Philippi occurs in high density populations in the Canary Islands, creating extensive barren areas. During one year we determined seasonal changes in the algal abundance and population densities, test diameter, gut contents ...
José Carlos Hernández   +6 more
doaj   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

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