A high performance distillation system to remove krypton from xenon was constructed, and a purity level of Kr/Xe
=
∼3
×
10
−12 was achieved. This development is crucial in facilitating ...high-sensitivity low-background experiments such as the search for dark matter in the universe.
To accumulate information on the coding sequences of unidentified genes, we have carried out a sequencing project of human cDNA clones which encode large proteins. We herein present the entire ...sequences of 100 cDNA clones of unidentified human genes, named KIAA1776 and KIAA1780-KIAA1878, from size-fractionated cDNA libraries derived from human fetal brain, adult whole brain, hippocampus and amygdala. Most of the cDNA clones to be entirely sequenced were selected as cDNAs which were shown to have coding potentiality by in vitro transcription/translation experiments, and some clones were chosen by using computer-assisted analysis of terminal sequences of cDNAs. Three of these clones (fibrillin2/KIAA1776, MEGF10/KIAA1780 and MEGF11/KIAA1781) were isolated as genes encoding proteins with multiple EGF-like domains by motif-trap screening. The average sizes of the inserts and corresponding open reading frames of eDNA clones analyzed here reached 4.7 kb and 2.4 kb (785 amino acid residues), respectively. From the results of homology and motif searches against the public databases, the functional categories of the predicted gene products of 54 genes were determined; 93% of these predicted gene products (50 gene products) were classified as proteins related to cell signaling/communication, nucleic acid management, or cell structure/motility. To collect additional information on these genes, their expression profiles were also studied in 10 human tissues, 8 brain regions, spinal cord, fetal brain and fetal liver by reverse transcription-coupled polymerase chain reaction, products of which were quantified by enzyme-linked immunosorbent assay.
Using thermography, skin temperature was evaluated in a 76-year-old patient with type II diabetes mellitus, presenting with diabetic foot ulceration on the right hallux and a corn on the left fourth ...toe. Increased skin temperature was observed in both the right hallux and the left fourth toe, though there were no visible clinical signs of infection. Unexpectedly, the high temperature area was seen to extend from the left fourth toe to the ankle. The patient was later diagnosed with osteomyelitis, due to the presence of a high-intensity area on T2-weighted magnetic resonance imaging, suggesting the elevated skin temperature was due to osteomyelitis. Based on these observations, thermography could prove useful for screening for foot ulcers with osteomyelitis.
Novel Pd membrane: A composite palladium membrane for hydrogen separation has been fabricated by vacuum‐assisted electroless plating. Nanometer‐sized palladium grains are packed into a mesoporous ...γ‐alumina layer located on a macroporous alumina tubular support (see figure). The observed high resistance to hydrogen embrittlement is attributed to the novel membrane configuration and to size‐related effects of the palladium grains, and these materials may find use in gas‐separation membranes.
In this study, a system for the real-time monitoring (RTM) of pervaporation performances was developed to measure the permeation behaviors under the unsteady-state condition. By using a standard gas ...in combination with a mass spectrometer, the permeation behaviors during pervaporation could be simply, continuously, and sensitively monitored. By applying this system to a temperature-programmed pervaporation experiment, the effect of temperature on the permeation properties could be rapidly determined. In this study, the system was also used for monitoring the permeation behavior under the unsteady-state condition. As a result, the unique permeation behavior of water occurring early in the pervaporation experiments could be observed. This monitoring result suggests that the competitive adsorption, diffusion, and permeation routes of molecules are important for the permeation and separation performances of zeolite membranes.
We report a rare case of proximal tibiofibular instability treated using TightRope. An 18-year-old male, soccer player, hit his right knee on the ground with the knee in a flexed position during a ...game. He was diagnosed with a partial PCL injury by his previous doctor and received a conservative treatment. However, he suffered from right knee pain for 3 months after the injury. The Sijbradij test and proximal tibiofibular joint stress Xrays showed a right-side instability, and we diagnosed the patient with proximal tibiofibular joint instability. We performed proximal tibiofibular joint reconstruction using TightRope. The patient could run 2 months postoperatively and returned to the game 6 months postoperatively. Proximal tibiofibular joint instability is rare, and diagnostic criteria and treatment have not been established. Previous reports have suggested that it is associated with radiating pain of the common peroneal nerve and general joint laxity. Joint fixation using metal screws is associated with the risk of screw breakage owing to weight bearing, which necessitates peroneal osteotomy and metal removal. Proximal tibiofibular reconstruction using TightRope is a minimally invasive and effective technique that enables micro-motion, and is similar to physiologic ligament reconstruction. TightRope doesnʼt require peroneal osteotomy or metal removal.
Effect of electron irradiation on the structural and phase stability of amorphous phase and crystallites in Fe–9Zr–3B alloy was examined. Amorphous ribbons were produced by a ...single-roller-melt-spinning method. Some specimens were annealed at 873 and 1073 K to obtain α-Fe and the duplex structure composed of α-Fe phase and Fe–Zr intermetallic compounds, respectively. Electron irradiation on the amorphous and crystalline specimens were performed at dose rates of 1.7×10
24 and 7.5×10
23 m
−2 s
−1. The electron irradiation accelerated crystallization from the amorphous phase, while the α-Fe and the intermetallic compounds remained stable in annealed specimens. During electron irradiation, cubic-Fe
2Zr crystallized from the amorphous phase prior to α-Fe precipitates in melt-spun specimens without annealing, while the α-Fe precipitation advanced during annealing
A theoretical model is developed to understand the basic mechanism of the deviation of a crystal lattice from the perfect structure in nanostructured materials. The interface tension and the stress ...field induced by the excess volume in the grain boundaries are the two main reasons for lattice distortion. Based on this model, the contribution of the lattice distortion to the thermal expansion coefficient of nanostructured materials is analysed quantitatively. The results show that the unusual physical properties of nanostructured materials result not only from grain boundaries, but also from nanocrystallites.
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