We measured in situ inherent optical properties and seagrass maximum depth distribution in widely differing optical water types, including turbid green waters of the Indian River Lagoon (IRL, Florida, USA), a mix of turbid and clear waters in Panama, and very clear waters in Belize. We used Hydrolight to model in situ spectral energy distributions and measured leaf absorbance spectra (Thalassia...

In Stereoscopic Particle Image Velocimetry (Stereo-PIV), the three velocity components are obtained by illuminating a planar region in the fl ow fi eld and recording the region of interest using two cameras at an angle. Calibration, planar velocity estimation, and velocity reconstruction are the three essential steps involved in the process. Earlier efforts to quantify the accuracy in a Stereo-...

Congenital hypothyroidism (CH) is one of the most common preventable causes of mental retardation. Newborn screening and thyroid therapy started within 2 weeks of age can normalize the cognitive and motor impairment caused by lack of thyroid hormone during the early postnatal phase of brain development. The availability of assays to determine thyroxin (T4) and thyroid stimulating hormone has al...

The thermal conductivity of gas-permeated single-walled carbon nanotube (SWCNT) aerogel (8 kg m − 3 density, 0.0061 volume fraction) is measured experimentally and modeled using mesoscale and atomistic simulations. Despite the high thermal conductivity of isolated SWCNTs, the thermal conductivity of the evacuated aerogel is 0.025 ± 0.010 W m − 1 K − 1 at a temperature of 300 K. This very low va...

▼ The aim of this study was to determine the eff ect of several months of training on performance and energetic profi le of elite swimmers. 9 elite swimmers were evaluated at 3 diff erent time periods during the 2010–2011 calendar. Swimming performance was assessed based on lists of times for the 200 m freestyle event. An incremental set of 7 × 200 m swims was applied to obtain the energetic da...

in this paper, a new and ecient approach is applied for numerical approximationof the linear dierential equations with variable coecients based on operational matriceswith respect to hermite polynomials. explicit formulae which express the hermite expansioncoecients for the moments of derivatives of any dierentiable function in terms of theoriginal expansion coecients of the function itse...

In Thailand, poisoning by glyphosate (GLYP)-containing the herbicide, Roundup®, has been increasing. A high-performance liquid chromatographic (HPLC) method with UV detector has been developed for quantitating glyphosate. The serum samples (0.2 mL) were precipitated with acetonitrile (0.2 mL), and the supernatant was then injected directly into the chromatographic system using a fi xed volume l...

Continued fraction expansions for the eigenvalues A= A(I', h2 ) and for the Fourier coefficients c~n/co are given by Tamir and Wang in [2]. These relations are valid both in the s table (I' real) and unstable (I' complex) regions . F (I') == C~,.1Co is numerically evaluated and depicted. It is seen from the graphs in [2] that the given formulas for C~,JCO are not particularly suitable for numer...

It was the aim of this study to determine the potential of two aliphatic and two aromatic thiolated chitosan conjugates: chitosan-thioglycolic acid (chitosan-TGA), chitosan-4-thiobutylamidine (chitosan-TBA), chitosan-6mercaptonicotinic acid (chitosan-6MNA) and chitosan-4-mercaptobenzoic acid (chitosan-4MBA), respectively, as permeation enhancing agents. Ritonavir was employed as model compound....

The perspectives on membrane protein insertion, protein– bilayer interactions, and amino acid side hydrophobicity (J. Gen. Physiol. 129:351–377) deal with several key issues in membrane biology. The four informative papers (MacCallum et al., 2007; von Heijne, 2007; White, 2007; Wolfenden, 2007) obtain detailed quantitative data on the interaction of protein amino acid residues with different me...