To enhance speech recognition, as well as Mandarin tone recognition in noice, we proposed a speech coding strategy called zero-crossing of fine structure in low frequency (LFFS) for cochlear implant based on low frequency non-uniform sampling (LFFS for short). In the range of frequency perceived boundary of human ear, we used zero-crossing time of the fine structure to generate the stimulus pulse sequences based on the frequency selection rule. Acoustic simulation results showed that although on quiet background the performance of LFFS was similar to continuous interleaved sampling (CIS), on the noise background the performance of LFFS in Chinese tones, words and sentences were significantly better than CIS. In addition to this, we also got better Mandarin recognition factors distribution by using the improved index distribution model. LFFS contains more tonal information which was able to effectively improve Mandarin recognition of the cochlear implant.
Acoustics ; Cochlear Implants ; Equipment Design ; Humans ; Language ; Noise ; Recognition (Psychology) ; Speech Perception

Peliosis hepatis is a rare benign hepatic vascular disease.There is the lack of specific clinical features and preoperative diagnosis.A patient with intermittent liver area pain was admitted to the Third Central Hospital of Tianjin in April 2014.The patient with space-occupying lessions of the right lobe of liver was preliminarily diagnosed as with hepatocellular tumor or vasogenic tumor by computed tomography and B ultrasound examinations and then received liver resection combined with cholecystectomy.The result of postoperative pathological examination confirmed peliosis hepatis with adenomatous hyperplasia of liver cells.The patient was followed up till October 20,2014 without recurrence.

Objective To discuss the quantitative diagnosis of stagnation of Qi and blood stasis syndrome in chronic prostatitis. To make diagnosis chart and ensure diagnosis threshold level which provide statistics evidence for syndrome differentiation of TCM. Methods By the statistical ways, 168 cases of chronic prostatitis belong to stagnation of Qi blood and stasis syndrome and 198 cases of non-stagnation of Qi and blood stasis syndrome were investigated. To make a diagnosis chart and ensure diagnosis threshold level by applying the method of the maximum likelihood discriminatory analysis. Results The quantitative diagnosis chart was made and diagnosis threshold level was 26. According to the retrospective and prospective test, its sensitivity, especially degree, coincidence rate, error rate and positive likelihood ratio were 94.64%, 88.89%, 91.53%, 8.47%, 8.52 and 94.28%, 90.32%, 92.42%, 7.58%, 9.74. Conclusion The indexes of the quantitative diagnosis have good objectivity. According to the retrospective and prospective test, the diagnosis chart was proved to be practical.

Adult ; Hand Injuries ; surgery ; Humans ; Male ; Occupational Diseases ; surgery ; Paint

The total cDNA obtained through reverse transcription of F. oxysporum CGMCC 0536 mRNA used as template, a fragment about 1.5kb was amplied with oligo(dT)15 primer and a gene specific primer designed on the base of the sequence of both NH2-terminus and the cDNA sequence encoding D-lactonohydrolase of Fusarium oxysporum reported on the NCBI, then the fragment was cloned to the pMD18-T vector and sequenced. The sequence encoding D-lactonohydrolase of F. moniliforme CGMCC 0536 shows a high homology of 90.06% with that of F. oxysporum indicating that the gene encoding D-lactonohydrolase is highly conservative. Two specific primers were designed according to the sequence result, and a fragment, 1146bp, was amplied using hot start PCR with these two specific primers. Subsequently, the resulting products were digested with EcoR I and Sal I and ligated to the pTrc99a vector digested with the same enzymes using T4 DNA ligase. the recombinant plasmid, pTrc99a-LAC, was transformed into Escherichia coli JM109. The two positive clones were induced with IPTG, and enzymes expressed in Escherichia coli JM109, the enzyme activity was about 37U and 41U respectively. The expression products were analyzed by SDS-polyacrylamide gel electrophoresis indicating that about 40kD protein was obtained.
Base Sequence ; Carboxylic Ester Hydrolases ; biosynthesis ; genetics ; Cloning, Molecular ; Electrophoresis, Polyacrylamide Gel ; Escherichia coli ; genetics ; metabolism ; Fungal Proteins ; biosynthesis ; genetics ; Fusarium ; enzymology ; genetics ; Molecular Sequence Data

Objective: To investigate the expression profile of long intergenic non-coding RNAs (lincRNAs) in human colorectal cancer (CRC). Methods: The expressions of long non-coding RNAs (lncRNAs) and mRNAs in four CRC tissues and para-cancerous normal colorectal mucosa tissues were detected by microarray analysis. Clustering heatmaps were made to profile the lincRNAs and mRNAs expressions by MeV 4.6 software. The signal pathways were analyzed by SBC Analysis System (SAS). The linc-UCC, linc-DCC and MIR143HG expression levels were detected by real-time fluorogenic quantitative-PCR (RFQ-PCR). Results: One hundred twenty-four lincRNAs and 1 583 mRNAs out of 42 545 RNAs detected by microarray assay were identified as differentially expressed between CRC tissues and para-cancerous normal colorectal mucosa tissues. Pathway analysis indicated that 29 potential pathways corresponded to these aberrant lincRNAs. linc-UCC was frequently up-regulated in CRC tissues and its high expression had a significant correlation with lymph node metastasis. linc-DCC and MIR143HG were down-regulated in CRC tissues and the positive correlation was shown between them. Conclusion: These results suggest that the differences in lincRNAs expression profiles may provide a new target for diagnosis and treatment of CRC. Copyright © 2014 by TUMOR.

OBJECTIVETo compare the differences of active ingredients between tissue cultured cells and cultivated saffron pistils.

METHODThe experiment was carried out by the Fourier transform infrared spectroscopy (FTIR) spectra and high performance liquid chromatography (HPLC).

RESULTThe data indicated that the species and contents active ingredients in saffron pistils from different places were different. The species of active ingredients in tissue cultured cells are less than those in cultivated saffron pistils. However, the quantity of crocin A, which showed good anticancer effect, is 2-3 times more than that in cultivated saffron pistils.

CONCLUSIONThe active ingredients of the tissue cultured cells are similar to those of saffron pistils, but their contents are different. Therefore, the tissue cultured cells can only be the part-substitutes of cultivated saffron pistils.

Carotenoids ; analysis ; Cells, Cultured ; Chromatography, High Pressure Liquid ; Crocus ; chemistry ; cytology ; Ecosystem ; Flowers ; chemistry ; cytology ; India ; Plants, Medicinal ; chemistry ; cytology ; Spain ; Species Specificity ; Spectroscopy, Fourier Transform Infrared

OBJECTIVETo explore effects of Shenqi preparation,Traditional Chinese Medicine, on anti-fatigue and anti-oxidant functions.

METHODSOne hundred and twenty mice were randomly divided into control group and 3 experimental groups. The high, medium and low-dose of Shenqi preparation were given to the 3 experimental groups respectively, while distilled water to the control group for 15 d. The loaded swimming time, the level of lactate, serum urea nitrogen (SUN), muscle and liver glycogen, liver super-oxide dismutase (SOD), the content of malondialdehyde (MDA), glutathione peroxidase(GSH-Px) were assayed.

RESULTSThe loaded swimming test showed that the exhausted swimming time of 3 experimental groups [(296.0 +/- 25.3)s, (437.0 ĝ 38.9)s, (595.0 +/- 53.9)s respectively] was longer than that of control group [(231.0 +/- 22.5)s, P < 0.05, P < 0.01]. The liver glycogen content of the high and medium-dose experimental groups were higher than that of control group respectively (P < 0.01). The SUN content of each experimental group was less than that of the control group (P < 0.01, P < 0.05). Moreover,in the medium and high dose experimental groups, less accumulation of lactate was found (P < 0.01, P < 0.05), and the content of liver SOD and GSH-Px was higher (P < 0.01, P < 0.05). The content of liver MDA in high-dose experimental group was less than that of the control group (P < 0.05).

CONCLUSIONShenqi preparation, especially the high and medium-dose experimental groups, is able to improve exercise tolerance and has anti-fatigue and anti-oxidant effects in mice.

Animals ; Antioxidants ; metabolism ; Blood Urea Nitrogen ; Disease Models, Animal ; Drugs, Chinese Herbal ; pharmacology ; Fatigue ; drug therapy ; metabolism ; Glutathione Peroxidase ; metabolism ; Glycogen ; metabolism ; Lactic Acid ; blood ; Liver ; drug effects ; metabolism ; Male ; Malondialdehyde ; metabolism ; Mice ; Physical Conditioning, Animal ; Superoxide Dismutase ; metabolism

Objective To analyze the features of clinical diagnosis and treatment of duodenal gastrointestinal stromal tumors(GIST).Methods Retrospective analysis was performed on clinical data of 5 cases of duodenal GIST treated in our hospital between April 2002 and May 2009.Results The duodenal GIST was mainly located in the 2nd(3/5)and 3rd portion of duodenum(2/5).Clinical diagnosis of the disease mainly depended on barium meal examination, gastrointestinal endoscopy, and CT scanning.Two patients were treated with pancreaticoduodenectomy, 1 with segmental duodenectomy and 2 with local resection.After operation, 2 patients had recurrence and 1 of them underwent adjuvant therapy with Gleevec.Conclusion Surgical resection is the only effective therapeutic method for duodenal GIST.Various surgical procedures are mainly determined by the location and size of the tumors.For patients with a high degree of pathologic grade, adjuvant therapy with Gleevec is necessary.