An empiric power function relationship between a population's mean density (m) and its corresponding variance (v), written v = a.mb (a, b, constants), may be applied to the analysis of experimentally induced pulmonary metastases within syngeneic (C57BL/6 X C3H)F1 mice. The mean and variance of the numbers of resultant B16 F1 and B16 F10 melanoma metastases strongly correlated with the power function (r2 greater than 0.8). The exponent b was 1.4 +/- 0.1 and 1.6 +/- 0.2 for the F1 and F10 melanomas, respectively, indicating a clustering of metastases within certain mice. This clustering of metastases within more highly affected animals may reflect a diffusion-limited aggregation of tumor cells within the circulation and the resultant greater ability of these aggregates to form metastases.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Fetal cardiac function in pregnancy affected by congenital heart disease: protocol for a multicentre prospective cohort study.
BMC Pregnancy Childbirth
January 2025
Royal Hospital for Women and UNSW, School of Clinical Medicine, Level 0, Royal Hospital for Women, Barker Street (Locked Bag 2000), Sydney, NSW, 2031, Australia.
Background: Congenital heart disease (CHD) is the most common fetal malformation, and it can result first in cardiac remodeling and dysfunction and later in cardiac failure and hydrops. A limited number of studies have evaluated cardiac function in fetuses affected by CHD. Functional parameters could potentially identify fetuses at risk of cardiac failure before its development.
View Article and Find Full Text PDFClinical and Neurophysiological predictors of the functional outcome in right-hemisphere stroke.
Neuroimage
January 2025
IRCCS Istituto delle Scienze Neurologiche di Bologna.
Objective: The aim of the present study is to examine the relationship between EEG measures and functional recovery in right-hemisphere stroke patients.
Methods: Participants with stroke (PS) and neurologically unimpaired controls (UC) were enrolled. At enrolment, all participants were assessed for motor and cognitive functioning with specific scales (motricity index, trunk control test, Level of Cognitive Functioning, and Functional Independence Measure (FIM).
Sustainable removal of gaseous Hg using sulfur functionalized biochar: Adsorption experiment and life cycle assessment.
Chemosphere
January 2025
Department of Environmental Engineering, Korea University Sejong Campus, 2511 Sejong-ro, Sejong City, 30019, Republic of Korea. Electronic address:
Maximizing the sorption capacity of gaseous Hg by sulfur-functionalized biochar can lead to increased energy consumption and the production of secondary environmental pollutants such as greenhouse gases. This study evaluates the environmental impact of producing sulfurized biochar through a life cycle assessment (LCA), weighing these impacts against the benefits of enhanced Hg removal efficiencies. The biochar's Hg adsorption capacity, which ranges between 3 and 22 μg-Hg/g-biochar, is influenced by several factors: it increases with higher sulfur loading (0-15 %), higher O levels (0-21 %), and longer pyrolysis times (1-5 h).
View Article and Find Full Text PDFDiscriminatory power of trabeculectomy bleb internal reflectivity and morphology in surgical success using anterior segment optical coherence tomography.
BMC Ophthalmol
January 2025
St Paul's Eye Unit, Royal Liverpool University Hospital, Liverpool, UK.
Background: The post-operative evaluation of trabeculectomy blebs has traditionally relied on subjective clinical grading systems performed at the slit-lamp. This study explores the use of swept source anterior-segment optical coherence tomography (AS-OCT) to objectively measure bleb internal reflectivity and morphology, and to distinguish blebs with surgical success vs. failure.
View Article and Find Full Text PDFVariable power functional dilution adjustment of spot urine.
Sci Rep
January 2025
Praxis Dr.Carmine, Etzelstrasse 21, Pfaeffikon SZ, 8808, Switzerland.
Spot-urinary biomarkers are crucial in medical, epidemiological, and environmental studies, but their variability due to hydration levels requires precise dilution adjustments. Traditional methods, like conventional creatinine correction (CCRC), are limited in compensating for variations in urine concentration, causing substantial inconsistencies, particularly at the extremes of the diuresis spectrum. While restricting the creatinine (CRN) range to 0.
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!