Materials Literature
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BACKGROUND: The best surgical treatment for a patient with rheumatoid arthritis and an acute distal humeral fracture is not well established. Because of the distorted anatomy of the arthritic elbow joint and the adjacent osteoporotic bone, total elbow arthroplasty may be favored over open reduction and internal fixati…
AIMS: In this study, three facile repetitive-sequence PCR (rep-PCR) techniques have been compared with the pulsed-field gel electrophoresis (PFGE) method for differentiating the genetic relatedness of clinical Stenotrophomonas maltophilia isolates. METHODS AND RESULTS: The dendrograms of 20 S. maltophilia isolates wer…
Chitin, a unique biopolymer based on the N-acetyl-glucosamine monomer is envisioned to promote rapid dermal regeneration and accelerate wound healing. It has many useful and advantageous biological properties for its application as a wound dressing. Chitin membranes were prepared using lithium chloride/dimethylacetami…
Using a home-built experimental setup, we investigate the carbon black (CB) volume fraction-resolved, time-resolved, and frequency-resolved spectra of the room temperature (well above the glass transition temperature of the matrix) effective complex permittivity of well characterized CB filled ethylene butylacrylate c…
A high efficiency low cost two-phase switched reluctance motor (SRM) drive system for high speed and large volume applications is developed and presented in this paper. The drive system is realized using a two-phase switched reluctance machine driven by a low cost split AC converter. The machine has self-starting capa…
The p53 tumour suppressor protein has a crucial role in controlling cell cycle and apoptosis in human cells and its inactivation by selective point mutations is associated with human cancers. Here we show that overexpression of the human wild-type (wt) p53 in Saccharomyces cerevisiae completely inhibits yeast growth u…
Realizing favorable absorption, distribution, metabolism, elimination, and toxicity profiles is a necessity due to the high attrition rate of lead compounds in drug development today. The ability to accurately predict bioavailability can help save time and money during the screening and optimization processes. As seve…
The development of novel nanomaterials has raised great interest in efforts to evaluate their effect on biological systems, ranging from single cells to whole animals. In particular, there exists an open question regarding whether nanoparticles per se can elicit biological responses, which could interfere with the phe…
The multipoint Thomson scattering diagnostic on the Madison Symmetric Torus (MST) is now fully operational with 21 spatial points, which cover the entire minor radius. Four full electron temperature profiles can be obtained during each MST discharge, with a variable delay between each profile. This system overcomes ch…
Abstract Over the past few years, considerable high temperature corrosion problems have been encountered when firing biomass in power plants due to the high content of potassium chloride in the deposits. Therefore, to combat chloride corrosion problems co‐firing of biomass with a fossil fuel has been undertaken. This…
The dark exciton state strongly affects the optical and quantum optical properties of flat InP/GaInP quantum dots. The exciton intensity drops sharply compared to the biexciton with rising pulsed laser excitation power while the opposite is true with temperature. Also, the decay rate is faster for the exciton than the…
This paper presents the results of an investigation focused on the rotor core eddy-current losses of interior permanent magnet (IPM) synchronous machines. First, analytical insight into the rotor core eddy-current losses of IPM machines is developed. Next, major design parameters that have the most significant impact…
A hexa-host compound yields at least four polymorphic forms from its melt phase. All four phases have been characterized using single-crystal X-ray diffraction; two of the phases were obtained by means of thermal stress, and the different forms exhibit conformational polymorphism.
A re-examination of cuticular components of Heliotropium filifolium allowed the isolation of four new compounds: 3'-hydroxy-2',2',6'-trimethyl-3H-spiro[1-benzo-furan-2,1'-cyclohexane]-5-carboxylic acid(2), methyl 3'-acetyloxy-2',2',6'-trimethyl-3H-spiro[1-benzofuran-2,1'-cyclohexane]-5-carboxylate (3), methyl 3'-isope…
Graded coatings have the advantage of having gradual properties such as thermal expansion coefficient and lattice parameter, avoiding adherence problems due to good match between their component materials. In this work, some properties of coatings grown in graded form are presented. The materials were produced using t…
The mechanical, chemical, and electronic properties of the lanthanoid nitrides give this class of materials many potential applications. While ScN research activity has sharply increased recently, investigations of growth methods for optimizing structural and, more importantly, electronic properties are still needed.…
A fully optimized model for the resting state of the active site of the third type of phylogenetically unrelated (monoiron) hydrogenase, iron-sulfur cluster-free hydrogenase (Hmd), was constructed based on density functional calculations. This resting state structure shows good agreement with the experimental IR spect…
Size dependences of three structural phase transitions, melting, evaporation, and solid−solid transition for silver (Ag) nanocrystals, were investigated with nanothermodynamics. The size-dependent melting temperature T m ( r ) and evaporation temperature T ev ( r ) of Ag nanocrystals were determined based on a root-me…
Happy together: When HCl is passed over heated MgB2, the magnesium subhalide MgCl is formed, which converts into the dimeric linear MgMg species Mg2Cl2 upon matrix isolation. The two compounds were characterized by vibrational spectroscopy and by computations; special attention was given to the MgMg bond. The result…
Abstract A novel linear trinuclear zinc(II) complex, {[ZnL(OAc)]2Zn}·CH3COCH3 (H2L: ethylenedioxybis(5‐bromo‐2‐ hydroxybenzylideneamino)), has been synthesized and structurally characterized. X‐ray crystal structure of the complex reveals that three zinc(II) ions are coordinated by two tetradentate L2− units and two a…