Results 91 to 100 of about 12,777,091 (283)
Technical note: A simple and effective CO 2 delivery system for angiography using a blood bag
Indian Journal of Radiology and Imaging, 2009 Several angiographic techniques have been developed to image the arterial system, the commonest using iodinated contrast media. Useful as they may be, they are not without disadvantages. One other modality is angiography using CO 2 .
Mathew P Cherian +5 more
doaj +1 more source
High contrast optical modulation by surface acoustic waves
, 2003 Numerical Calculations are employed to study the modulation of light by surface acoustic waves (SAWs) in photonic band gap (PBG) structures. The on/off contrast ratio in PBG switch based on optical cavity is determined as a function of the SAW induced ...
Krishnamurthy, S., Santos, P. V.
core +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Revealing the Concealed in Monocular and Binocular Vision
VisionConcealing images has been a concern of artists and scientists, as have the conditions that can reveal them. It is relatively easy to hide images in pictures, but this is of little value if they remain hidden.
Nicholas J. Wade
doaj +1 more source
Perceived Blur in Naturally-Contoured Images Depends on Phase
Frontiers in Psychology, 2010 Perceived blur is an important measure of image quality and clinical visual function. The magnitude of image blur varies across space and time under natural viewing conditions owing to changes in pupil size and accommodation.
Stephanie Murray, Peter J Bex
doaj +1 more source
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
Library Hi Tech, 2009 PurposeThis editorial seeks to compare the German Bibliothekartag, the American Library Association Annual Meeting, and the International Federation of Library Associations meeting.Design/methodology/approachThe method relies mainly on anthropological observation.FindingsConferences in cities with public transit, good restaurants, and decent technology,
openaire +2 more sources
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
A contrast of Christina Rossetti and Emily Dickinson, [PDF]
, 1939 Thesis (M.A.)--Boston University, 1939. This item was digitized by the Internet Archive.To which is added a Critical Bibliography of Antecedent Writings About ...
Anttonen, Eva Johanna
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