Results 31 to 40 of about 5,991,720 (304)

High-resolution mass spectrometry [PDF]

Analytical and Bioanalytical Chemistry, 2012
High-resolution mass spectrometry (HRMS) using doublefocusing mass analyzers was established in chemistry laboratories in the 1960s. Coupled to a direct insertion probe or to gas chromatography, it revolutionized the elemental analysis of organic compounds.
Hans H, Maurer, David C, Muddiman
openaire   +4 more sources

Evaluation of threshold conditions for latent track formation in nanocrystalline Y2Ti2O7

Eurasian Journal of Physics and Functional Materials, 2022
We present the first report on the structural effects induced by swift xenon ions in nanocrystalline pyrochlore Y2Ti2O7 (outside the metal matrix) studied using high resolution transmission electron microscopy.
A. Ibrayeva, A. Mutali, J. O’Connell, A. Sohatsky, V. Skuratov, L. Alekseeva, E. Korneeva, R. Rymzhanov   +7 more
doaj   +1 more source

HIGH RESOLUTION SHADING CORRECTION [PDF]

Journal of Histochemistry & Cytochemistry, 1974
Quantitative cytology requires accurate representation of a specimen's optical densities. As the requirements for measurement precision increase, instrument-induced errors become increasingly more difficult to reduce to the point at which their effect on experimental data is insignificant compared to the measured parameters.
M L, Schultz, L E, Lipkin, M J, Wade, P F, Lemkin, G M, Carman   +4 more
openaire   +2 more sources

High-resolution magnetic resonance imaging reveals nuclei of the human amygdala: manual segmentation to automatic atlas [PDF]

, 2017
Available online 4 May 2017The amygdala is composed of multiple nuclei with unique functions and connections in the limbic system and to the rest of the brain.
Augustinack, J.C., Boyd, E., Fischl, B., for the Alzheimer's Disease Neuroimaging Initiative, Frosch, M.P., Iglesias, J.E., Kliemann, D., McKee, A., Reuter, M., Saygin, Z.M., Stevens, A., van der Kouwe, A.J.W., Van Leemput, K.   +12 more
core   +3 more sources

Human Occupation of the North American Colorado Plateau ∼37,000 Years Ago

Frontiers in Ecology and Evolution, 2022
Calibrating human population dispersals across Earth’s surface is fundamental to assessing rates and timing of anthropogenic impacts and distinguishing ecological phenomena influenced by humans from those that were not.
Timothy B. Rowe, Timothy B. Rowe, Thomas W. Stafford, Daniel C. Fisher, Jan J. Enghild, J. Michael Quigg, Richard A. Ketcham, J. Chris Sagebiel, Romy Hanna, Matthew W. Colbert   +9 more
doaj   +1 more source

High-resolution x-ray telescopes

, 2010
High-energy astrophysics is a relatively young scientific field, made possible by space-borne telescopes. During the half-century history of x-ray astronomy, the sensitivity of focusing x-ray telescopes-through finer angular resolution and increased ...
Brissenden, R. J., Davis, W. N., Elsner, R. F., Elvis, M., Freeman, M., Gaetz, T., Gorenstein, P., Gubarev, M. V., Jerius, D., Juda, M., Kolodziejczak, J. J., Murray, S., O'Dell, S. L., Petre, R., Podgorski, W., Ramsey, B. D., Reid, P. B., Saha, T., Schwartz, D. A., Trolier-McKinstry, S., Weisskopf, M. C., Wilke, R. H. T., Wolk, S., Zhang, W. W.   +23 more
core   +1 more source

Terahertz Spectroscopic Signatures of Microcystin Aptamer Solution Probed with a Microfluidic Chip

Sensors, 2019
Terahertz signature detection of biological samples in aqueous solution remains a great challenge due to the strong terahertz absorption of water. Here we propose a new preparation process for fabricating a microfluidic chip and use it as an effective ...
Mingkun Zhang, Zhongbo Yang, Mingjie Tang, Deqiang Wang, Huabin Wang, Shihan Yan, Dongshan Wei, Hong-Liang Cui   +7 more
doaj   +1 more source

Compact High-Velocity Clouds at High Resolution

, 1999
Six examples of the compact, isolated high-velocity clouds catalogued by Braun & Burton (1999) and identified with a dynamically cold ensemble of primitive objects falling towards the barycenter of the Local Group have been imaged with the Westerbork ...
A Klypin, A Sandage, B Moore, BP Wakker, BP Wakker, D Eichler, D Hartmann, DV Bowen, E Bajaja, E Bajaja, GL Verschuur, ID Karachentsev, J Einasto, JF Navarro, JH Oort, JH Oort, JH Oort, JN Bregman, L Blitz, LM Young, LM Young, LM Young, M López—Corredoira, MA Zwaan, MG Wolfire, MG Wolfire, PR Shapiro, R Braun, R Giovanelli, WB Burton   +29 more
core   +1 more source

Embryonic Stem Cell Transplantation into Seminiferous Tubules: A Model for the Study of Invasive Germ Cell Tumors of the Testis

Cell Transplantation, 2011
Over the last 15 years, cell transplantation into seminiferous tubules has become a valuable tool to study germinal cell biology and related matters. This is particularly so, because the blood–testis permeability barrier establishes a sealed compartment ...
Unai Silván, Alejandro Díez-Torre, Ricardo Andrade, Jon Arluzea, Margarita Silió, Juan Aréchaga   +5 more
doaj   +1 more source

High-Resolution Spectroscopy of FUors

, 2003
High-resolution spectroscopy was obtained of the FUors FU Ori and V1057 Cyg between 1995 and 2002 with SOFIN at NOT and with HIRES at Keck I. During those years FU Ori remained about 1 mag.
Barnes T. G., Bastien U., Bouvier J., Chini R., Clarke C. J., D’Angelo G., D’Angelo G., Fernandez M., G. H. Herbig, Kopatskaya E. N., Kopatskaya E. N., Larson R. B., Laugalys V., P. P. Petrov, Petrov P., Porter J. M., R. Duemmler, Welin G.   +17 more
core   +1 more source