In a fully formed rivulet, the flow profile across the total cross section is downward, as would be intuitively expected. However, prior to this stage being reached, a strong backflow capable of carrying particles up to 125 mm up the incline back to the source is shown to occur. Two phases are described prior to a fully formed rivulet being established. First, a forming rivulet, in which a bulbous drop head slides down a slope with a flow occurring in the wetted trail behind it. In this stage, a linear increase in backflow height is observed over time. Subsequently, a transient rivulet occurs, with the transition happening once the end of the inclined solid surface is reached. The backflow decreases through this phase in a stepwise manner, coinciding with fluid dripping off the surface. The findings here strongly challenge common assumptions made regarding cleaning, whereby fluid will transport particulate matter downhill, and has significant implications on irrigation applied to remove bacterial biofilms in clinical medicine.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevE.83.026304 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Amino acid stable carbon isotopes in nail keratin illuminate breastfeeding and weaning practices of mother - infant dyads.
Amino Acids
January 2025
Earth Sciences, Western University, London, Canada.
Compound-specific stable carbon isotope analysis of amino acids (CSIA-AA) is widely used in ecological studies to analyze food-webs and is gaining use in archaeology for investigating past diets. However, its use in reconstructing breastfeeding and weaning practices is not fully understood. This study evaluates the efficacy of stable carbon isotope analysis of amino acids in early life diet reconstruction by analyzing keratin from fingernail samples of three mother-infant pairs during late gestation and early postpartum periods.
View Article and Find Full Text PDFEpigenetic memory as crucial contributing factor in directing the differentiation of human iPSC into pancreatic β-cells in vitro.
Cell Tissue Res
January 2025
Diabetes Research Center, Qatar Biomedical Research Institute (QBRI), Qatar Foundation (QF), Hamad Bin Khalifa University (HBKU), Doha, Qatar.
Impaired insulin secretion contributes to the pathogenesis of type 1 diabetes mellitus through autoimmune destruction of pancreatic β-cells and the pathogenesis of severe forms of type 2 diabetes mellitus through β-cell dedifferentiation and other mechanisms. Replenishment of malfunctioning β-cells via islet transplantation has the potential to induce long-term glycemic control in the body. However, this treatment option cannot widely be implemented in clinical due to healthy islet donor shortage.
View Article and Find Full Text PDFTreatment patterns and clinical profile in progressive pulmonary fibrosis: a Japanese cross-sectional survey.
Front Med (Lausanne)
January 2025
Department of Respiratory Medicine, Faculty of Medicine, Kyorin University, Tokyo, Japan.
Background: There is a paucity of real-world data on patients with interstitial lung diseases (ILDs) that are progressive, other than idiopathic pulmonary fibrosis (IPF), including treatment patterns and attitudes toward treatment. This study aimed to investigate the diagnosis, clinical characteristics, treatment paradigm and current decision-making practices of IPF and progressive pulmonary fibrosis (PPF) in a Japanese real-world setting.
Methods: Data were drawn from the Adelphi Real World PPF-ILD Disease Specific Programme™, a cross-sectional survey with retrospective data collection of pulmonologists and rheumatologists in Japan from April to October 2022.
Higher than expected telemedicine use by racial and ethnic minority and cognitively impaired Medicare beneficiaries.
Health Aff Sch
January 2025
Division of General Internal Medicine and Health Service Research, David Geffen School of Medicine at UCLA, Los Angeles, CA 90024, United States.
Although pandemic-era telemedicine flexibilities may have preserved access to care, concerns remain that telemedicine may have been inequitably distributed among older adults, especially those with mild cognitive impairment or dementia (MCID). As telemedicine flexibilities are set to fully expire on December 31, 2024, we aimed to examine pandemic-era and future-intended telemedicine use among older Americans to help inform post-pandemic telemedicine policy design. We hypothesized that telemedicine would be disproportionately underutilized among older adults with MCID or with racial and ethnic minority status.
View Article and Find Full Text PDFInvestigation of aerosol jet printing for the preparation of solid dosage forms.
Int J Pharm
January 2025
EPSRC CMAC Future Manufacturing Research Hub, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 99 George Street, Glasgow G1 1RD UK; The Cancer Research UK Formulation Unit, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral St, Glasgow G4 0RE UK.
Oral drug delivery remains the preferred method of drug administration but due to poor solubility many active pharmaceutical ingredients (APIs) are ill suited to this. A number of methods to improve solubility of poorly soluble Biopharmaceutical Classification System (BCS) Class II drugs already exist but there is a lack of scalable, flexible methods. As such the current study applies the innovative technique of aerosol jet printing to increase the dissolution capabilities of a Class II drug in a manner which permits flexibility to allow dosage form tailoring.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!