Results 71 to 80 of about 516,287 (323)

Post-Newtonian Theory for Precision Doppler Measurements of Binary Star Orbits [PDF]

open access: yes, 1999
The determination of velocities of stars from precise Doppler measurements is described here using relativistic theory of astronomical reference frames so as to determine the Keplerian and post-Keplerian parameters of binary systems.
Brumberg V. A.   +16 more
core   +3 more sources

How variation among field assessments can affect biodiversity offset outcomes

open access: yesConservation Science and Practice
Biodiversity offsetting aims to balance biodiversity loss at development sites with gains at offset sites. Measurement of loss and gain relies on transparent and repeatable estimates of biodiversity values. However, these estimates are often derived from
Peter Contos   +4 more
doaj   +1 more source

Ultrasound Diagnosis of Rotator Cuff Tears: The Necessity for Technical and Qualification Upgrades

open access: yesJournal of Medical Ultrasound
Background: The dependence of each subtype of rotator cuff tears (RCTs) on ultrasound (US) experience and technique is unknown. The aims of this study were to investigate the necessity of physician qualification and US technical upgrades – possible ...
Yaqun Tang   +5 more
doaj   +1 more source

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

Reliability and agreement of root length measurements during orthodontic treatment in images from different CBCT machines using multiplanar reconstruction

open access: yesBiomaterial Investigations in Dentistry
Objectives: To assess inter- and intrarater reliability and agreement for measurements of root lengths using multiplanar reconstruction (MPR) in cone beam computed tomography (CBCT) examinations.
Kristina Johansson   +2 more
doaj   +1 more source

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

Among Artificial Intelligence/Machine Learning Methods, Automated Gradient-Boosting Models Accurately Score Intraoral Plaque in Non-Standardized Images

open access: yesJournal of the California Dental Association
Background Previous automated models inaccurately scored non-standardized plaque images. The objectives were to develop and test automated image selection and intraoral plaque-scoring (primary outcome measure in a prevention trial for preschoolers ...
Eric Coy   +5 more
doaj   +1 more source

Digital Photography: a Tool for Nursing on the Assessment of Pressure Lesions

open access: yesInvestigación y Educación en Enfermería, 2018
Objective. This work sought to assess the inter-observer agreement among expert nurses by using digital photographs and between these experts and the nursing registries in the electronic clinical record in the identification and degree of PL.
Olga L. Cortés   +5 more
doaj   +1 more source

Inter-Observer Variation in Reporting of Pap Smears [PDF]

open access: yesNational Journal of Laboratory Medicine, 2016
Introduction: The Papanicolaou smear is one of the most important tests in preventive health care which helps to identify women at risk of developing cervical cancer. The use of the test is increasing because of more awareness.
Ramya B Siddegowda   +3 more
doaj   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

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