Results 51 to 60 of about 4,985,011 (220)

The Mind From Within: Visceral Roots of Human Cognition

Advanced Science, EarlyView.
The physiological activity of visceral organs, such as the heart, the lungs, and the gut, is surprisingly linked to many sophisticated mental operations, such as remembering the past, being aware of ourselves, making choices, and forging social bonds.
Alessandro Monti, Salvatore Maria Aglioti   +1 more
wiley   +1 more source

The History of Nuclear Medicine

, 2022
The chapter provides a historic overview of the research in physics and chemistry for the development of radionuclides, radiopharmaceuticals, and instrumentation which have had a major impact for the today’s status of nuclear medicine.
Jönsson, Bo-Anders,, Lund University.
core   +1 more source

Sustainable Materials Design With Multi‐Modal Artificial Intelligence

Advanced Science, EarlyView.
Critical mineral scarcity, high embodied carbon, and persistent pollution from materials processing intensify the need for sustainable materials design. This review frames the problem as multi‐objective optimization under heterogeneous, high‐dimensional evidence and highlights multi‐modal AI as an enabling pathway.
Tianyi Xu, Tianshuo Wei, Yan Ge, Bo Peng, Yue Li, Maolin Wang, Peng Wen, Chao Yang, Ye Wei   +8 more
wiley   +1 more source

Quantitative Parametric Perfusion Images Using O-15-Labeled Water and a Clinical PET/CT Scanner: Test-Retest Variability in Lung Cancer

, 2010
Quantification of tumor perfusion using radioactive water (H215O) and PET is a promising method for monitoring treatment with antiangiogenic agents. However, use of dynamic H215O scans together with a fully 3-dimensional clinical PET/CT scanner needs to ...
van der Veldt, A.A.M., Lammertsma, Adriaan A, Mark Lubberink, Lubberink, J.M., Emile F.I. Comans, Smit, Egbert F, Lammertsma, A.A., Egbert F. Smit, Hendrik J. Harms, Smit, E.F., Hendrikse, N Harry, Postmus, P.E., Lubberink, Mark,, Harms, H.J., Harms, Hendrik J, Postmus, Pieter E, Comans, E.F.I., Adriaan A. Lammertsma, van der Veldt, Astrid A M, Comans, Emile F I, N. Harry Hendrikse, Astrid A.M. van der Veldt, Pieter E. Postmus, Hendrikse, N.H.   +23 more
core   +1 more source

Dynamic Etching‐Induced Cl‐Terminated Ti3C2Clx/Ti3ZnC2 Heterostructure for Ammonia Electrosynthesis and Zinc‐Nitrogen Batteries

Advanced Science, EarlyView.
A stable Ti3C2Clx/Ti3ZnC2 heterostructure, fabricated by dynamic etching, exhibits outstanding electrocatalytic NRR activity (NH3 yield: 20.1 µg h−1 mg−1, FE: 38.1%) in alkaline media. The corresponding Zn‐N2 battery achieves a peak power density of 36.5 µW cm−2 and an NH3 yield of 13.1 µg h−1 mg−1, providing an advanced strategy for NH3 and ...
Yu Wang, Ying Sun, Liqun Ye, Jichi Liu, Hui Li, Yang Fu, Fengzhan Sun, Jieshan Qiu, Chang Yu, Tianyi Ma   +9 more
wiley   +1 more source

Parametric Images of Myocardial Viability Using a Single (15)O-H(2)O PET/CT Scan

, 2011
Perfusable tissue index (PTI) is a marker of myocardial viability and requires acquisition of transmission, 15O-CO, and 15O-H2O scans. The aim of this study was to generate parametric PTI images from a 15O-H2O PET/CT scan without an additional 15O-CO ...
Lammertsma, Adriaan A, de Haan, S., Allaart, C.P., Mark Lubberink, Lubberink, J.M., de Haan, Stefan, Lammertsma, A.A., Knaapen, P., Hendrik J. Harms, Paul Knaapen, Knaapen, Paul, Lubberink, Mark,, Allaart, Cornelis P, Harms, H.J., Harms, Hendrik J, Cornelis P. Allaart, Adriaan A. Lammertsma, Stefan de Haan   +17 more
core   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

Accuracy and Precision of Radioactivity Quantification in Nuclear Medicine Images

, 2012
The ability to reliably quantify activity in nuclear medicine has a number of increasingly important applications. Dosimetry for targeted therapy treatment planning or for approval of new imaging agents requires accurate estimation of the activity in ...
Frey, Eric C., Ljungberg, Michael,, Lund University., Humm, John L.   +3 more
core   +1 more source

Best practice for the nuclear medicine technologist in CT-based attenuation correction and calcium score for nuclear cardiology

, 2020
The use of hybrid systems is increasingly growing in Europe and this is progressively important for the final result of diagnostic tests. As an integral part of the hybrid imaging system, computed tomography (CT) plays a crucial role in myocardial ...
Fragoso Costa, Pedro, Terwinghe, Christelle, Camoni, Luca, Mada, Marius Ovidiu, Rac, Sonja, Rep, Sebastijan, Attard, Marieclaire, Santos, Andrea, Pietrzak, Agata Karolina   +8 more
core   +1 more source

Hyperpolarization of [1‐13C]Ketoisocaproate‐d2 by Reversible Exchange with Parahydrogen Enables Profiling of Branched‐Chain‐Amino‐Acid Metabolism in Cellulo and in Vivo

Advanced Science, EarlyView.
We report the fast generation of biocompatible solutions of highly 13C‐hyperpolarized (≈11%) partially‐deuterated ketoisocaproate within <6 min using spin‐lock‐induced crossing and reversible exchange with parahydrogen (SLIC‐SABRE). This enables rapid detection of branched‐chain‐amino‐acid transferase 1 (BCAT1) protein expression and investigation of ...
Stefan Petersen, Philipp R. Groß, Paul M. Schmidt, Henri de Maissin, Asitan Rittinger, Robert Willing, Adriana Sacristán‐Martín, Lisa Heß, Jule Koch, Sebastian Lucas, Maxim Zaitsev, Dominik von Elverfeldt, Martin Grashei, Franz Schilling, Jan‐Bernd Hövener, André F. Martins, Max von Delius, Thomas Reinheckel, Andreas B. Schmidt   +18 more
wiley   +1 more source