Results 101 to 110 of about 3,411,943 (277)

Application of Non‐Isothermal Network Theory With Curved‐Channel Element Characteristics to Predict Melt Conveying in High‐Performance Single‐Screw Extruders

open access: yesJournal of Polymer Science, EarlyView.
This study presents a fast and accurate calculation tool to predict conveying of polymer melts in single‐screw extruders. Integrating generalized sub‐models into network theory allows to represent the complex screw shapes and material behavior more realistically. Tests on an industrial extruder show close agreement with experiments, outperforming older
Daniel Herzog   +3 more
wiley   +1 more source

Baicalein Sensitizes Radioresistant BT549 and MCF7‐R Breast Cancer Cells by Modulating Rac1 Signaling

open access: yesPhytotherapy Research, EarlyView.
ABSTRACT Radioresistance remains a key barrier in breast cancer (BC) treatment. Baicalein, a flavonoid from Scutellaria baicalensis, has shown potential to enhance radiosensitivity. This study investigates its efficacy and mechanism in radioresistant BC models. Radioresistant BC cell models were established via fractionated irradiation and validated by
Zitong Zhao   +3 more
wiley   +1 more source

Sustainable Production Planning: Insights Into Factors, Models, and Solution Methods

open access: yesSustainable Development, EarlyView.
ABSTRACT Effective resource management remains a major challenge for organizations seeking to balance economic efficiency with environmental and social responsibility. In this context, production planning becomes a strategic mechanism for integrating sustainability into industrial operations.
Daysi Ortiz   +2 more
wiley   +1 more source

Bias Polarity Switching (BiPS): A Transient Method for Probing Interfacial Carrier Dynamics

open access: yesSmall Methods, EarlyView.
Bias Polarity Switching combines optical excitation with rapid bias reversal to probe near‐interface carrier accumulation, trapping, detrapping, and extraction together with bulk carrier transport. The method provides access to defect kinetics and contact‐related transport processes, offering a complementary approach for investigating semiconductor ...
Marián Betušiak   +8 more
wiley   +1 more source

Technological stress factors and sperm DNA integrity: The impact of cryopreservation on bull fertility

open access: yesReproduction and Breeding
This study focuses on the dynamics of nuclear DNA fragmentation in Holstein bull sperm under technological stress, including freezing-thawing and incubation.
Baylar Iolchiev   +6 more
doaj   +1 more source

DNA Damaging Effects, Oxidative Stress Responses and Cholinesterase Activity in Blood and Brain of Wistar Rats Exposed to Δ9-Tetrahydrocannabinol

open access: yesMolecules, 2019
Currently we are faced with an ever-growing use of Δ9-tetrahydrocannabinol (THC) preparations, often used as supportive therapies for various malignancies and neurological disorders.
Nevenka Kopjar   +7 more
doaj   +1 more source

Cytogenotoxic Effects of Fluopyram in Allium cepa Root Cells Involving Microtubule Disruption

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Fluopyram is a next‐generation fungicide widely used in agriculture; however, its persistence in soils and mobility toward aquatic systems have raised concerns regarding potential ecotoxicological risks. This study evaluated the cytogenotoxic effects of a commercial fluopyram‐based pesticide formulation on Allium cepa root meristem cells ...
Carlos Filipe Camilo‐Cotrim   +10 more
wiley   +1 more source

Quantitative collagen and proteoglycan imaging reveal organic layering, gradients and regional texture in young mature dental cementum

open access: yesVIEW, EarlyView.
Cementum, the mineralized tissue covering all mammalian tooth roots, helps maintain tooth stability, but its internal organization is still poorly understood. In this study, we combine quantitative histologial methods to map the regional distributions of collagen fibers and proteoglycan‐rich matrix layers in porcine cementum.
Jie Zhen   +3 more
wiley   +1 more source

Ethnography of physics laboratories [PDF]

open access: yes
Treball del Grau en Física. Curs 2023-2024, Tutoria: Dra. Sònia Estradé Albiol i Dra. Míriam Comet Donoso. VI Premi Clara Campoamor al millor Treball Final de Grau amb perspectiva de gènere de la Universitat de Barcelona, curs 2023-202. Menció honorífica.
Espuny de la Calle, Joana
core   +3 more sources

The thrombin receptor (PAR1) is associated with microtubules, mitosis and process formation in glioma cells

open access: yesHeliyon
The cell surface protease-activated receptor 1 (PAR1) is overexpressed in glioblastoma multiforme (GBM). We studied the function and structure of intracellular microtubule (MT) and PAR1 in a tubulin-mediated process.
Valery Golderman   +5 more
doaj   +1 more source

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