G. Levin

ORCID: 0000-0002-9461-1747
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About
Contact & Profiles
Research Areas
  • Planetary Science and Exploration
  • Space Satellite Systems and Control
  • Space Exploration and Technology
  • Spacecraft Design and Technology
  • Astro and Planetary Science
  • Physics of Superconductivity and Magnetism
  • Space exploration and regulation
  • Advanced Condensed Matter Physics
  • Astronomy and Astrophysical Research
  • Superconducting Materials and Applications
  • Magnetic properties of thin films
  • Sports Performance and Training
  • Adaptive optics and wavefront sensing
  • Cardiovascular and exercise physiology
  • Calibration and Measurement Techniques
  • Isotope Analysis in Ecology
  • Geotechnical and Geomechanical Engineering
  • Force Microscopy Techniques and Applications
  • Vitamin C and Antioxidants Research
  • Radioactive Decay and Measurement Techniques
  • Muscle metabolism and nutrition
  • Research Data Management Practices
  • Migration, Policy, and Dickens Studies
  • Biocrusts and Microbial Ecology
  • Advanced Physical and Chemical Molecular Interactions

North Dakota University System
2025

Dakota State University
2024

North Dakota State University
2024

The Ohio State University
2011

Edith Cowan University
2008

United States Air Force Research Laboratory
2005-2007

Wright-Patterson Air Force Base
2005

National Academies of Sciences, Engineering, and Medicine
2001

National Health Council
2001

Western Kentucky University
2001

The purpose of this study was to determine the accuracy Velotron cycle ergometer and SRM power meter using a dynamic calibration rig over range exercise protocols commonly applied in laboratory settings. These trials included two sustained constant (250 W 414 W), incremental three high-intensity interval trials. To further compare systems, 15 subjects performed 30 km performance time displayed accurate measurements during both (<1% error). However, were found be less (3.0%, CI=1.6–4.5%...

10.1055/s-0028-1103285 article EN International Journal of Sports Medicine 2009-01-28

Low circulating concentrations of 25-hydroxyvitamin D (25(OH)D) are associated with adverse health outcomes in diverse populations. However, 25(OH)D vary seasonally varying exposure to sunlight, so single measurements may poorly reflect long-term exposure. The authors investigated cyclical trends average serum among 2,298 individuals enrolled the Cardiovascular Health Study community-based older adults (1992–1993). A sinusoidal model closely approximated observed and fit data significantly...

10.1093/aje/kwr258 article EN American Journal of Epidemiology 2011-11-23

This expansion for the modular vector assembly platform BEVA (Bacterial Expression Vector Archive) introduces 11 new parts including two cloning site variants, antibiotic resistance modules, three origins of replication, and four accessary modules. As a result, system is now doubled in size expanded its capacity to produce diverse replicating plasmids. Furthermore, it amenable genetic engineering methods involving genome-manipulation target strains through deletions or integrations. In...

10.1139/cjm-2024-0246 article EN Canadian Journal of Microbiology 2025-02-07

The aims of the present study were to determine influence familiarization on reliability power output during a dynamic 30-km cycling trial and test-retest following 6-week period. Nine trained male cyclists performed five self-paced trials, which contained three 250-m sprints 1-km sprints. first these trials in consecutive weeks (Week 1, Week 2 3), while latter two consecutively conducted 6 wk 9 10). Subjects instructed complete each sprint, as well entire least time possible....

10.1055/s-2007-989263 article EN International Journal of Sports Medicine 2008-06-18

60 Co gamma rays can induce germination of the spores cellular slime mold, Dictyostelium discoideum , in absence heat shock, amino acids, or bacteria food source. About 65% amoebae emergence occurs by 13 hr after a dose 180 krad.

10.1128/jb.104.2.1022-1023.1970 article EN Journal of Bacteriology 1970-11-01

An YBCO coated conductor with a zipper pattern striation is investigated by scanning laser microscopy (SLM). The distribution of transport current deduced from the VTSLM images shows that striations act as artificial barriers forcing to flow around them. Current sharing and redistribution are observed at area. We find major dissipation mechanism in sample superconducting state be crowding bottleneck areas. seems caused disabled filaments Some show away In general, we lower J/sub c//sup */...

10.1109/tasc.2005.848670 article EN IEEE Transactions on Applied Superconductivity 2005-06-01

Abstract This expansion for the modular vector assembly platform BEVA (Bacterial Expression Vector Archive) introduces 11 new parts including two cloning site variants, antibiotic resistance modules, three origins of replication, and four accessary modules. As a result, system is now doubled in size expanded its capacity to produce diverse replicating plasmids. Furthermore, it amenable genetic engineering methods involving genome-manipulation target strains through deletions or integrations....

10.1101/2024.12.04.626608 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2024-12-04
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