Technical Note: Rational Polynomial Functions for Modeling E. coli and Bromide Breakthrough

2012 ◽  
Vol 55 (5) ◽  
pp. 1821-1826 ◽  
Author(s):  
D. W. Meek ◽  
C. K. Hoang ◽  
R. W. Malone ◽  
R. S. Kanwar ◽  
G. A. Fox ◽  
...  
Keyword(s):  
Technical Note ◽  
Polynomial Functions ◽  
E Coli ◽  
Rational Polynomial

scholarly journals Using Rational Polynomial Functions for rectification of GeoEye-1 imagery

2013 ◽  
Vol 1 (6) ◽  
pp. 12-17 ◽  
Author(s):  
Pasquale Maglione ◽  
◽  
Claudio Parente ◽  
Andrea Vallario
Keyword(s):  
Polynomial Functions ◽  
Rational Polynomial

scholarly journals Technical note: Assessment of the better location of gnawing sticks in growing rabbit cages

2018 ◽  
Vol 26 (3) ◽  
pp. 249 ◽  
Author(s):  
Clara Marín ◽  
Laura Simarro-Catalá ◽  
Arantxa Villagrá
Keyword(s):  
Picea Abies ◽  
Environmental Enrichment ◽  
Technical Note ◽  
The Other ◽  
Indicator Bacteria ◽  
E Coli ◽  
Growing Period ◽  
Wooden Stick ◽  
Microbiological Analyses ◽  
Sampling Times

<p>The present work tries to determine the best location of wooden sticks for environmental enrichment, considering usage and level of contamination as variables. A total of 540 rabbits at 4 wk of age were caged in 60 groups of nine animals in conventional rabbit cages, and the effect of the allocation of wooden sticks was studied by fixing them on the floor in 30 cages and on the cage ceiling in the other 30 cages. The sticks were sampled during the fattening period (5 wk) to evaluate the contamination of the sticks, with detection of the most common faecal indicator bacteria in rabbit production (<em>E. coli</em> and <em>Clostridium</em> spp.). Likewise, quantitative enumeration analyses for <em>E. coli</em> were performed at the same sampling times for detection of both bacteria. Sticks used for environmental enrichment of the cage in this experiment were made of fir (<em>Picea abies</em>). According to the results, placing the wooden stick on the ceiling instead of the floor reduces stick consumption (6.28±1.75 <em>vs.</em> 13.55±1.75% of stick consumed). Moreover, microbiological analyses revealed that wooden sticks placed on the ceiling were less contaminated than those placed on the floor (2.8 and 22.8% for <em>E. coli</em>, respectively and 1.1 and 10.6% for <em>Clostridium</em> spp., respectively). In conclusion, fixing the sticks on the ceiling of the cage was revealed as a safer choice during most weeks of the growing period.</p>

Technical Note: E. coli Transport through Soil Columns: Implications for Bioretention Cell Removal Efficiency

2009 ◽  
Vol 52 (2) ◽  
pp. 481-486 ◽  
Author(s):  
K. Garbrecht ◽  
G. A. Fox ◽  
J. A. Guzman ◽  
D. Alexander
Keyword(s):  
Removal Efficiency ◽  
Technical Note ◽  
Soil Columns ◽  
E Coli ◽  
Bioretention Cell

Certain mapping properties of rational complex planar splines

1987 ◽  
Vol 101 (1) ◽  
pp. 141-149 ◽  
Author(s):  
H. P. Dikshit ◽  
A. Ojha ◽  
A. Sharma
Keyword(s):  
Complex Plane ◽  
Polynomial Functions ◽  
Quadratic Polynomials ◽  
Compact Region ◽  
Rational Polynomial ◽  
Piecewise Functions

SummaryConsidering a certain partition of a given compact region in the complex plane, interpolatory, convergence and quasiconformal properties of interpolants from the class of continuous piecewise functions with pieces as quadratic polynomials in z and were studied recently in [3] and [7]. In the present paper we succeed in showing that the foregoing mapping properties continue to hold for interpolants from a certain class of continuous piecewise rational polynomial functions in z and

A Note on a Class of Optimization Problems in System Engineering

2010 ◽  
Vol 29-32 ◽  
pp. 1063-1067
Author(s):  
Hong Wei Jiao ◽  
Kun Li ◽  
Jing Ben Yin ◽  
Yong Qiang Chen
Keyword(s):  
Lower Bound ◽  
Optimization Problems ◽  
Relaxation Method ◽  
System Engineering ◽  
Technical Note ◽  
Linear Relaxation ◽  
Polynomial Functions ◽  
Special Program ◽  
Generalized Polynomial

In this technical note, we develop an approach to globally solve a class of optimization problems in system engineering based on the recent paper ([1]). Actually the problem we investigated is more general, since we extend numerators and denominators of linear ratios to generalized polynomial functions. And we give a new linear relaxation method for obtaining the lower bound of problems. Our approach is easy to be implemented, since it need not additional special program to the upper and lower bound for numerator and denominator of each generalized polynomial ratio.

scholarly journals Allostery in oligomeric receptor models

2018 ◽  
Author(s):  
Gregory Douglas Conradi Smith
Keyword(s):  
Spanning Tree ◽  
Polynomial Functions ◽  
Allosteric Coupling ◽  
Receptor Models ◽  
Equilibrium Binding ◽  
Rational Polynomial ◽  
Tree Construction ◽  
Binding Curves

We show how equilibrium binding curves of receptor heterodimers and homodimers can be expressed as rational polynomial functions of the equilibrium binding curves of the constituent monomers, without approximation and without assuming independence of receptor monomers. Using a distinguished spanning tree construction for reduced graph powers, the method properly accounts for thermodynamic constraints and allosteric coupling between receptor monomers.

Endotoxin Alteration of the Mucopolysaccharide Blood Vessel Coating in Rats

1974 ◽  
Vol 32 ◽  
pp. 148-149
Author(s):  
D. E. Philpott ◽  
A. Takahashi
Keyword(s):  
Skeletal Muscle ◽  
Endothelial Cells ◽  
Salivary Gland ◽  
Carotid Artery ◽  
Basement Membrane ◽  
Coronary Vessels ◽  
Ruthenium Red ◽  
E Coli ◽  
Old Rats ◽  
The Brain

Two month, eight month and two year old rats were treated with 10 or 20 mg/kg of E. Coli endotoxin I. P. The eight month old rats proved most resistant to the endotoxin. During fixation the aorta, carotid artery, basil arartery of the brain, coronary vessels of the heart, inner surfaces of the heart chambers, heart and skeletal muscle, lung, liver, kidney, spleen, brain, retina, trachae, intestine, salivary gland, adrenal gland and gingiva were treated with ruthenium red or alcian blue to preserve the mucopolysaccharide (MPS) coating. Five, 8 and 24 hrs of endotoxin treatment produced increasingly marked capillary damage, disappearance of the MPS coating, edema, destruction of endothelial cells and damage to the basement membrane in the liver, kidney and lung.

Ribosome Structural Organization

1974 ◽  
Vol 32 ◽  
pp. 332-333
Author(s):  
James A. Lake
Keyword(s):  
Ribosomal Proteins ◽  
Structural Organization ◽  
Three Dimensional ◽  
Small Subunit ◽  
Structural Studies ◽  
X Ray Diffraction ◽  
Specific Antibodies ◽  
X Ray ◽  
E Coli ◽  
Complete Sequences

The understanding of ribosome structure has advanced considerably in the last several years. Biochemists have characterized the constituent proteins and rRNA's of ribosomes. Complete sequences have been determined for some ribosomal proteins and specific antibodies have been prepared against all E. coli small subunit proteins. In addition, a number of naturally occuring systems of three dimensional ribosome crystals which are suitable for structural studies have been observed in eukaryotes. Although the crystals are, in general, too small for X-ray diffraction, their size is ideal for electron microscopy.

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