Results 51 to 60 of about 225,421 (305)

Chronic ingestion of bisphenol A decreases the cholinergically evoked and spontaneous contractions of rat uterus in vitro

open access: yesNational Journal of Physiology, Pharmacy and Pharmacology, 2017
Background: Bisphenol A (BPA), a chemical used in the manufacture of plastics, has toxic effects on reproductive, developmental, and metabolic systems. It is implicated as a causative factor for infertility.
Hemlata Gupta, Shripad B Deshpande
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

Prostaglandin pathways in equine myometrium regulations: endometrosis progression

open access: yesFrontiers in Veterinary Science
IntroductionProstaglandins (PG) are important regulators of the myometrial contractility in mammals. Endometrosis, a condition characterized by morphological changes in the equine endometrium, also affects endometrial secretory function.
Katarzyna K. Piotrowska-Tomala   +9 more
doaj   +1 more source

Effects of trunk extensor eccentric exercise on lipid profile and glycaemic response

open access: yesBMJ Open Sport & Exercise Medicine, 2020
Objectives A number of previous studies reported physiological responses and adaptations after eccentric muscle contraction of limb muscles. In contrast, no study has determined physiological response after eccentric contraction of trunk muscles.
Ho-Seong Lee   +2 more
doaj   +1 more source

Residual Contraction

open access: yesJournal of Logic, Language and Information, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Garapa, Marco, Reis, Maurício D. L.
openaire   +2 more sources

Prediction of maximal surface electromyographically based voluntary contractions of erector spinae muscles from sonographic measurements during isometric contractions

open access: yes, 2014
Objectives\ud \ud Currently, there are no studies combining electromyography (EMG) and sonography to estimate the absolute and relative strength values of erector spinae (ES) muscles in healthy individuals.
Cuesta-Vargas, A.I.   +1 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Stability of Fixed Points of Partial Contractivities and Fractal Surfaces

open access: yesAxioms
In this paper, a large class of contractions is studied that contains Banach and Matkowski maps as particular cases. Sufficient conditions for the existence of fixed points are proposed in the framework of b-metric spaces.
María A. Navascués
doaj   +1 more source

Fixed Point Theorems for New Type Contractive Mappings

open access: yesJournal of Function Spaces, 2019
In this paper, we introduce some new concepts of contractions called γ-contractions and γ-weak contractions. We prove some fixed point theorems for mappings providing γ-contractions and γ-weak contractions unlike known results in the literature. Also, we
Müzeyyen Sangurlu Sezen
doaj   +1 more source

Revisiting Path Contraction and Cycle Contraction

open access: yesJournal of Computer and System Sciences
The Path Contraction and Cycle Contraction problems take as input an undirected graph $G$ with $n$ vertices, $m$ edges and an integer $k$ and determine whether one can obtain a path or a cycle, respectively, by performing at most $k$ edge contractions in $G$. We revisit these NP-complete problems and prove the following results. Path Contraction admits
R. Krithika 0001   +2 more
openaire   +5 more sources

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