Results 41 to 50 of about 243,823 (199)

Blood-coated sensor for high-throughput ptychographic cytometry on a Blu-ray disc [PDF]

, 2022
Blu-ray drive is an engineering masterpiece that integrates disc rotation, pickup head translation, and three lasers in a compact and portable format. Here we integrate a blood-coated image sensor with a modified Blu-ray drive for high-throughput cytometric analysis of various bio-specimens.
arxiv   +1 more source

Laboratory diagnostics and quality of blood collection [PDF]

Journal of Medical Biochemistry, 2015
Summary: Diagnostic blood samples collected by phlebotomy are the most common type of biological specimens drawn and sent to laboratory medicine facilities for being analyzed, thus supporting caring physicians in patient diagnosis, follow-up and/or ...
Lippi Giuseppe, Salvagno Gian Luca, Picheth Geraldo, Guidi Gian Cesare   +3 more
doaj  

Reflection-mode optical diffraction tomography for label-free imaging of thick biological specimens [PDF]

arXiv, 2022
Optical diffraction tomography (ODT) has emerged as a powerful label-free three-dimensional (3D) bioimaging techniques for observing living cells and thin tissue layers. We report a new reflection-mode ODT (rODT) method for imaging thick biological specimens with 500 nm lateral resolution and 1 {\mu}m axial resolution.
arxiv  

Consistency in the Assessment of Dried Blood Spot Specimen Size and Quality in U.K. Newborn Screening Laboratories

International Journal of Neonatal Screening
In 2015, U.K. newborn screening (NBS) laboratory guidelines were introduced to standardize dried blood spot (DBS) specimen quality acceptance and specify a minimum acceptable DBS diameter of ≥7 mm. The UK ‘acceptable’ avoidable repeat rate (AVRR) is ≤2%.
Stuart J. Moat, James R. Bonham, Christine Cavanagh, Margaret Birch, Caroline Griffith, Lynette Shakespeare, Clare Le Masurier, Claire Manfredonia, Beverly Hird, Philippa Goddard, Sarah Smith, Laura Wainwright, Rachel S. Carling, Jennifer Cundick, Fiona Jenkinson, Catherine Collingwood, Nick Flynn, Nazia Taj, Mehdi Mirzazadeh, Tejswurree Ramgoolam, Liz Robinson, Amy Headley, Tessa Morgan, David Elliman, Lesley Tetlow   +24 more
doaj   +1 more source

Acceptability of serosurveys in southern Zambia: data collector and caregiver perspectives

Discover Social Science and Health, 2023
Background Factors associated with whether individuals choose to participate in serosurveys are not well understood. Understanding perceptions from multiple perspectives, including the perspectives of both data collectors and participants, through a ...
Andrea C. Carcelen, Rupali J. Limaye, Simon Mutembo, Mutinta Hamahuwa, Philip E. Thuma, William J. Moss, Kyla Hayford   +6 more
doaj   +1 more source

Taxon and trait recognition from digitized herbarium specimens using deep convolutional neural networks [PDF]

Botany Letters (2018) 1-7, 2018
Herbaria worldwide are housing a treasure of 100s of millions of herbarium specimens, which are increasingly being digitized in recent years and thereby made more easily accessible to the scientific community. At the same time, deep learning algorithms are rapidly improving pattern recognition from images and these techniques are more and more being ...
arxiv   +1 more source

Blood-collection device for trace and ultra-trace metal specimens evaluated

Clinical Chemistry, 1991
Abstract We evaluated the evacuated phlebotomy tube designed specifically for trace metal analysis by Sherwood Medical Co. Pools of human serum containing known concentrations of aluminum, arsenic, calcium, cadmium, copper, chromium, iron, lead, magnesium, manganese, mercury, selenium, and zinc were exposed to the tube and rubber stopper
David E. Nixon, Garry V. Mussmann, Thomas P. Moyer   +2 more
openaire   +3 more sources

A hands-free stool sampling system for monitoring intestinal health and disease

Scientific Reports, 2022
Analysis of stool offers simple, non-invasive monitoring for many gastrointestinal (GI) diseases and access to the gut microbiome, however adherence to stool sampling protocols remains a major challenge because of the prevalent dislike of handling one’s ...
Sonia Grego, Claire M. Welling, Graham H. Miller, Peter F. Coggan, Katelyn L. Sellgren, Brian T. Hawkins, Geoffrey S. Ginsburg, Jose R. Ruiz, Deborah A. Fisher, Brian R. Stoner   +9 more
doaj   +1 more source

Coming up short: Comparing venous blood, dried blood spots & saliva samples for measuring telomere length in health equity research.

PLoS ONE, 2021
BackgroundTelomere length (TL) in peripheral blood mononuclear cells (PBMC) from fresh venous blood is increasingly used to estimate molecular impacts of accumulated social adversity on population health.
Arline T Geronimus, John Bound, Colter Mitchell, Aresha Martinez-Cardoso, Linnea Evans, Landon Hughes, Lisa Schneper, Daniel A Notterman   +7 more
doaj   +1 more source

Use of blood specimens collected on filter paper in screening for abnormal hemoglobins.

Clinical Chemistry, 1976
Abstract Both cellulose acetate electrophoresis and citrate agar electrophoresis were performed on 834 blood samples collected on filter paper in Jamaica and shipped for testing to the National Hemoglobinopathy Standardization Laboratory at the U.S. National Center for Disease Control.
J M Wright, Solomon Holland, G R Serjeant, Robert M. Schmidt, E M Brosious   +4 more
openaire   +3 more sources