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Study shows limitations of method for determining protein structure（图）
Study limitation determine protein structure
2019/10/17
A new study by chemists at the University of Arkansas shows that X-ray crystallography, the standard method for determining the structure of proteins, may provide inaccurate information about a critic...
Laboratory methodologies for indicators of iron status: strengths, limitations, and analytical challenges
iron analysis ferritin soluble transferrin receptor total body iron NHANES iron methodologies
2018/11/21
Biochemical assessment of iron status relies on serum-based indicators, such as serum ferritin (SF), transferrin saturation, and soluble transferrin receptor (sTfR), as well as erythrocyte protoporphy...
Risk Assessment and Ecotoxicology:Limitations and Recommendations for Ocean Disposal of Mine Waste in the Coral Triangle
Risk Assessment Ecotoxicology:Ocean Disposal Mine Waste Coral Triangle
2015/7/15
Mining is an important contribution to the economy of many developing tropical regions. Many sites of mining interest in the tropics have island geographies and potentially limited land area. While th...
On the potential policy use of some selected biodiversity indicators: limitations and recommendations for improvements ‒ Short Communication
convention on biological diversity environmental policy
2015/5/5
In order to facilitate the use of biodiversity indicators in policy making at the country level, a few and
well-established indices should be suggested. Promising candidates include biodiversity-rel...
Study on the limitations of travel-time inversion applied to sub-basalt imaging
travel-time inversion sub-basalt imaging
2015/1/5
The difficulties of seismic imaging beneath high velocity structures are widely recognised. In this setting, theoretical analysis of synthetic wide-angle seismic reflection data indicate...
Exploring the potentials and limitations of the time-reversal imaging of finite seismic sources
potentials time-reversal imaging
2014/12/31
The characterisation of seismic sources with timereversed wave fields is developing into a standard technique
that has already been successful in numerous applications.
Iron and copper limitations differently affect growth rates and photosynthetic and physiological parameters of the marine diatom Pseudo-nitzschia delicatissima
Iron and copper limitations differently affect growth rates photosynthetic and physiological parameters marine diatom Pseudo-nitzschia delicatissima
2014/4/2
In ～ 50% of the ocean, iron (Fe) limits phytoplankton growth, including that of the diatom Pseudo-nitzschia. Fe-limited Pseudo-nitzschia spp. may produce the potent neurotoxin domoic acid (DA) to acce...
Attack Detection and Identification in Cyber-Physical Systems -- Part I: Models and Fundamental Limitations
Attack Detection Identification Cyber-Physical Systems Models Fundamental Limitations
2012/2/29
Cyber-physical systems integrate computation, communication, and physical capabilities to interact with the physical world and humans. Besides failures of components, cyber-physical systems are prone ...
Combinatorial limitations of a strong form of list decoding
Combinatorial limitations strong form of list decoding combinatorics
2012/2/29
We prove the following results concerning the combinatorics of list decoding, motivated by the exponential gap between the known upper bound (of $O(1/\gamma)$) and lower bound (of $\Omega_p(\log (1/\g...
Gauge/string duality applied to heavy ion collisions: Limitations, insights and prospects
Gauge/string duality applied to heavy ion collisions
2011/7/21
Over the last decade a fruitful interplay has developed between analyses of strongly coupled non-abelian plasmas via the gauge/string duality and the phenomenology of the quark-gluon plasma created in...
Chemical abundances in metal-poor giants: limitations imposed by the use of classical 1D stellar atmosphere models
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/29
In this work we have used 3D hydrodynamical (CO5BOLD) and 1D hydrostatic (LHD) stellar atmosphere models to study the importance of convection and horizontal temperature inhomogeneities in stellar abu...
Accuracy and Limitations of Fitting and Stereoscopic Methods to Determine the Direction of Coronal Mass Ejections from Heliospheric Imagers Observations
Solar and Stellar Astrophysics (astro-ph.SR) Space Physics (physics.space-ph)
2010/12/28
Using data from the Heliospheric Imagers (HIs) onboard STEREO, it is possible to derive the direction of propagation of coronal mass ejections (CMEs) in addition to their speed with a variety of metho...
On Lossless Approximations, the Fluctuation-Dissipation Theorem, and Limitations of Measurements
Lossless Approximations Fluctuation-Dissipation Theorem Limitations of Measurements
2010/12/6
In this paper, we take a control-theoretic approach to answering some standard questions in statistical mechanics, and use the results to derive limitations of classical measurements.
Spectrum Sharing between Cooperative Relay and Ad-hoc Networks: Dynamic Transmissions under Computation and Signaling Limitations
Spectrum Sharing between Cooperative Relay Ad-hoc Networks: Dynamic Transmissions
2010/12/13
This paper studies a spectrum sharing scenario between an uplink cognitive relay network (CRN) and some nearby low power ad-hoc networks.
Amorphous and crystalline aerosol particles interacting with water vapor: conceptual framework and experimental evidence for restructuring, phase transitions and kinetic limitations
crystalline aerosol particles water vapor conceptual framework experimental evidence
2009/12/31
Interactions with water are crucial for the properties, transformation and climate effects of atmospheric aerosols. Here we present a conceptual framework for the interaction of amorphous aerosol part...