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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...
Comparison of methods of determining meteoroid range rates from linear frequency modulated chirped pulses
determining meteoroid modulated chirped pulses
2017/3/22
In this paper we present three methods for evaluating range rates of meteoroids
passing through the ionosphere, using linear frequency modulated (LFM) chirped pulse
data from the ALTAIR radar. The f...
Determining the protein needs of “older” persons one meal at a time
protein requirement older persons
2018/11/12
The determination of protein requirements (need) and “optimal” protein intakes (greater than need but beneficial to health) is complex and currently, insofar as older persons are concerned, without co...
A Test of the Role of Electrostatic Interactions in Determining the CO Stretch Frequency in Carbonmonoxymyoglobin
Electrochemistry Escherichia coli Humans Mutagenesis, Site-Directed Myoglobin Point Mutation Protein Conformation Recombinant Proteins Spectroscopy, Fourier Transform Infrared Vibration
2016/5/23
The vibrational frequency of CO bound to myoglobin can be varied by up to 60 cm-1 by making site-specific mutations in the distal pocket. These changes may result from specific chemical interactions b...
A polynomial-time algorithm for determining quadratic Lyapunov functions for nonlinear systems
Nonlinear systems quadratic lyapunov function and convex programming function
2015/8/12
We consider nonlinear systems dx/dt=f(x(t)) where Df(x(t)) is known to lie in the convex hull of L n times n matrices A_1,ldots,A_L. For such systems, quadratic Lyapunov functions can be determined us...
Determining molecular mechanisms of DNA Non-Homologous End Joining proteins
DNA repair non-homologous end joining
2015/5/25
DNA double strand breaks (DSB), particularly those induced by ionizing radiation (IR) are complex lesions and if not repaired, these breaks can lead to genomic instability, chromosomal abnormalities a...
Exploring the Utility of High Resolution Imagery for Determining Wetland Signatures
Wetland Signatures Remote Sensing Remotely Sensed Wetland Signatures Using High Resolution Imagery
2015/1/9
Wetland habitats are characterized by periodic inundation and saturation by water creating anaerobic conditions that generate hydric soils and support hydrophytic vegetation. Wetland habitats provide ...
FLEXINVERT: an atmospheric Bayesian inversion framework for determining surface fluxes of trace species using an optimized grid
atmospheric Bayesian inversion framework optimized grid
2014/12/19
We present a new modular Bayesian inversion
framework, called FLEXINVERT, for estimating the surface
fluxes of atmospheric trace species. FLEXINVERT can be
applied to determine the spatio-tem...
Determining the Suitability and Accuracy of Various Statistical Algorithms for Satellite Data Classification
Remote sensing land use land cover
2014/11/11
Land use and land cover (LULC) data is very important for determining the nature and
mechanism of different land surface, hydrological processes. The production of land use land
cover map, using a...
New knowledge in determining the astronomical orientation of Incas object in Ollantaytambo, Peru
Ollantaytambo astronomical orientation astronomical azimuth Pyramids Pacaritanpu archeoastronomy Peru
2014/7/30
This paper deals about astronomical orientation of Incas objects in Ollantaytambo, which is located about 35 km southeast from Machu Picchu, about 40 km northwest from Cusco, and lies in the Urubamba ...
Some remarks about lidar data preprocessing and different implementations of the gradient method for determining the aerosol layers
Lidar Aerosol Wavelet Preprocessing
2015/8/17
The determination of atmospheric aerosol layers from lidar returns is possible through automated algorithms. This product is useful, for example, in monitoring the Boundary Layer Height (BLH) as well ...
The roles of productivity and ecosystem size in determining food chain length in tropical terrestrial ecosystems
ecosystem size food chain length food web structure islands
2015/11/13
Many different drivers, including productivity, ecosystem size, and disturbance,
have been considered to explain natural variation in the length of food chains. Much remains
unknown about the role o...
Determining precipitable water in the atmosphere of Iran based on GPS zenith tropospheric delays
Precipitable water Zenith wet delay Radiosonde profiles GPS Modeling
2015/8/18
Precipitable water (PW) is considered as one of the most important weather parameters in meteorology. Moreover, moisture affects the propagation of the Global Positioning System’s (GPS) signals. Using...
Determining of the Effect of Lysine:calorie Ratio on Growth Performance and Blood Urea Nitrogen of Growing Barrows and Gilts in Hot Season and Cool Season in a Commercial Environment
Blood Urea Nitrogen Growing Pigs Growth Performance Lysine:calorie Ratio
2016/5/11
Two experiments were conducted to determine an optimum Lys:calorie ratio (g of total dietary Lys/Mcal of DE) for growing barrows and gilts in cool and hot seasons in a commercial environment. In Exp. ...
Determining Angstrom Constants for Estimating Solar Radiation in Malawi
Solar Radiation Angstrom Constants Sun-Shine Hours
2013/3/7
This paper discusses a procedure that was adopted for the development of a linear regression model for estimating solar radiation in Malawi. By making use of sunshine-hours data recorded at six select...