Bonding of high purity polished copper was investigated using the Spark Plasma Sintering technique (SPS) showing the effect of SPS parameters (surface roughness, time, temperature and pressure) on the bonding strength behaviour. Mechanical characterization of the bonded samples was performed at room temperature using tensile test. Two surfaces roughnesses were studied (un-polished and polished ...

We describe in vitro studies and a therapeutic trial of retinoic acid (RA) in a patient with acute promyelocytic leukemia (APL) refractory to chemotherapy. Bone marrow promyelocytes from the patient, prior to RA, matured morphologically in liquid culture with RA (97% maturing myeloid cells compared with 26% in control cultures at 7 days). RA-cultured cells displayed leukocyte alkaline phosphata...

Excessive amount of copper (Cu) and inorganic arsenic (iAs) coexists in drinking water in many regions, this is associated with high risk of nephropathy, defined as chronic structural and functional disorders of the kidney. However, the underlying mechanisms are not well understood. In this study, a total of 72 day-old Hy-line chickens were exposed to 300 mg/kg copper sulphate or/and 30 mg/kg a...

Fe -Cu alloys (40≤x≤90) prepared by ball milling nominally pure (99%) Fe and Cu powders and warm x 100-x compacted (at ∼300 °C) were investigated by differential scanning calorimetry, scanning electron microscopy, x-ray diffraction, and magnetic susceptibility measurements. Both FCC and BCC diffraction peaks (indicative of pure Fe and Cu) showed that the mixtures were still two phase even after...

Triethylenetetramine (TETA), a selective Cu(II)-chelator used in the treatment of Wilson's disease, is now undergoing clinical trials for the treatment of heart failure in diabetes. Despite decades of clinical use, knowledge of its pharmacology in human subjects remains incomplete. Here, we first used liquid chromatography-mass spectrometry (LC-MS) to detect and identify major metabolites of TE...

Integral and angle resolved thermal desorption spectroscopies were used to study methanol adsorption and oxidation on clean and oxygen covered Cu(110) surfaces. Special emphasis was put on the Cu-CuO stripe phase, which forms when the Cu(110) surface is covered with 0.25 ML of oxygen. In the temperature regime between 200 and 300 K associative desorption of methanol and water takes place, showi...

in the . The Two-sourced evaporation technique is used to prepare hard ZnSe films by controlling the evaporation rates o Zn and Se at substrate temperature of 400 1C. The films are doped with Cu by immersion in the Cu(NO3)2 solution for different periods of time. The XRD has not shown a drastic change in the film structure while the ele resistivity of the deposited film dropped from 10O-cm to a...

The catalytic activity for CO oxidation over cerium dioxide (CeO2) and Cu-modified ceria (Cu/CeO2) powders prepared by wetness impregnation method was investigated in flow tube reactor system under atmospheric pressure. Reaction curves of powder samples pre-treated by calcination in mixture of argon and oxygen and by reduction in hydrogen, all at 300 °C were measured. X-ray photoelectron spectr...

The paper presents an automatic method for liver vasculature segmentation in volumetric images obtained during Computed Tomography (CT) patient examination. The method, apart from the CT image, also requires an additional image containing binary liver mask. A modified multiscale vesselness filter (VF) performs vasculature detection. VF response is used to determine the starting voxels for the s...

This study examined the bioaccumulation of the heavy metals copper (Cu) and zinc (Zn) by the giant kelp, Macrocystis pyrifera, by exposing meristematic kelp tissue to elevated metal concentrations in seawater within laboratory aquaria. Specifically, we carried out two different experiments. The first examined metal uptake under a single, ecologically-relevant elevation of each metal (30 ppb Cu ...