We describe colour, hardness, grain size, geological type and surface modifications of ochre pieces excavated, first by Malan and later by Harper, from the Middle Stone Age (MSA) of Rose Cottage Cave, 96, 000 to 30, 000 years ago. Soft, bright-red shales are abundant, and most ochre has clayey or silty grain sizes. The post-Howiesons Poort layers contain the most ochre pieces, but the Howiesons...

Activation of a Cl- current is critical to agonist-induced activation of rat aortic smooth muscle contraction. Substituting extracellular Cl- with 130 mM methanesulfonate (8 mM Cl-) increases the contractile response to norepinephrine (NE) but not to KCl. We hypothesized that endothelial factors modulate this effect. Removing the endothelium (rubbing) or treatment with N-nitrol-arginine (l-NNA)...

Amide and imide based polymers are a catalogue of versatile materials that have a wide range of applications from scientific interests to commercial products because of their great thermal stability, excellent electric properties, highly mechanical strength, and superior chemical resistance (Sroog, 1976). In a thin film form, polyimides have been found to have many important uses in optoelectro...

Infectious bovine keratoconjunctivitis (IBK) is a common corneal disease of calves that adversely affects animal welfare by causing pain and weight loss. Identifying behavioral indicators of pain and sickness in calves with IBK is necessary for designing studies that aim to identify effective means of pain mitigation. Consistent with principles of the 3Rs for animal use in research, data from a...

Photoalignment possesses obvious advantages in comparison with the usually “rubbing” treatment of the substrates of liquid crystal display (LCD) cells. The application of the photoalignment and photopatterning nanotechnology for the new generation of photonic and display devices will be reviewed.

conclusions experts are advised to focus on diverse sexual history dimensions, especially uncontrollable masturbation behaviors, that can predict sexual interests. although frotteurism is a rare psychiatric disorder, and although this case is atypical given the early childhood presentation of abnormal sexual behavior carried out secretly and not in a crowd, it is clear that frotteurism is the a...

This paper presents the results of absorption spectra, fluorescence properties and the effect of solvents on UV-Vis spectra of dye quaternized 4-acetylamino-N-2-aminomethylpyridine-1,8-naphthalimide. The fluorescency of the dye was evaluated and its Stokes shift value was 6140 cm-1 in DMF. The solvatochromism behavior of the novel compound is investigated by studying its spectra in pure organic...

CLINICAL PRESENTATIONA 44-year-old lady came to a dermatology clinic due to an asymptomatic, hyperpigmented plaque on her right thigh since 4 months ago. On physical exam, hypertrichosis on the lesion was notable (Figure 1). Rubbing the lesion resulted in erythema and edema of the lesion. She had no systemic disease and her family history was unremarkable.

BACKGROUND The aim of this study was to compare two techniques for surgical site skin preparation in hand surgery. METHODS We compared the standard sponge paint technique versus a plastic bag immersion technique using a 10% povidone-iodine with alcohol solution (Betadine, ORION Laboratories Pty Ltd, Balcatta,WA,Australia) to prepare surgical site skin for hand surgery. This sterile bag rubbin...