Raman microspectroscopy is a powerful analytical technique in cultural heritage. However, results are often compromised by luminescence interference and poor sensitivity. Surface-enhanced spectroscopy (SERS) an alternative that can enhance the signal quench luminescence, but interaction of analyte metal substrate produces altered spectra. Shell-isolated nanoparticle-enhanced (SHINERS) promising...

In this contribution, the amounts of Ni (nickel) and Al (aluminum) in tilapias (Oreochromis niloticus) were determined using square wave voltammetry (SWV) with glassy carbon working microelectrode with a mercury thin film, platinum counter electrode, and Ag/AgCl reference electrode. Ni was studied through the formation of the dimethylglyoxime-Ni (Ni-DMG) complex, while Al was studied through th...

BACKGROUND The aim of this study is to identify which possessed the best stem-cell-like characteristics in 3 kinds of cell in human degenerative intervertebral disc: NPSCs (nucleus pulposus-derived stem cells), AFSCs (annulus fibrosus-derived stem cells), or CESCs (cartilage endplate-derived stem cells). METHODS We separated the disc samples obtained from 15 surgically treated patients with d...

Skin and subcutaneous lesions of 2 cases with natural occurring Cushing’s disease and 1 case with calcinosis circumscripta were compared. Case 1 was typical of osteoma cutis, containing somewhat regularly arranged discrete ossification foci in the mid and deep dermis. Case 2 had layers of “mille feuille”, yellowish to white gritty chalky substances diffusely scattered in the subcutis, seen hist...

It has been known since 1920 (Johns & Finks, 1920) that the navy bean is an inferior source of protein for rats. Everson & Heckert (1944) reported that raw navy beans were injurious to rats when given at a 10% protein level. They also reported that autoclaving the beans destroyed the injurious effect. Kakade & Evans (1963a, b) confirmed this report and observed that rats given 10% protein as ra...

Histochemical and ultrastructural studies demonstrate that keratohyalin can be mobilized from fresh specimens of cattle hoof epidermis by 1.0 M potassium phosphate buffer (pH 7.0). Macroaggregates with histochemical characteristics identical to those of in situ keratohyalin granules (staining by Harris' hematoxylin, Congo red, diazotized sulfanilic acid, sodium alizarin sulfonate, toluidine blu...

OBJECTIVE To assess whether the United States Navy is disproportionately attracting and recruiting female smokers from the civilian sector. METHODS Standardised comparisons of cigarette use among Navy women recruits and civilian women were conducted with data from a 1996-97 Department of Defense study and the 1994 National Health Interview Survey. RESULTS Young Navy women recruits (18-22 ye...

Benjamin and Thornberg (hereafter BT) have written a comment on my paper analyzing the incentive structure of the British Navy. They contend that I have ‘‘misread the historical development of the Royal Navy, and missed crucial technological and institutional features that are essential to understanding the Navy s organization and success.’’ This is a surprising statement given the fundamental ...