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Optical edge detection can significantly compress the data volume and is highly pursued in imaging processing. The commonly used methods extract the optical edge information but lose the capability to distinguish colors, which is another key information for imaging. Here, a design for color-selective optical edge detection is proposed and demonstrated with a cholesteric liquid crystal q-plate. The corresponding optical edge detection exhibits a narrow reflection band characteristic due to the one-dimensional photonic crystal configuration of the cholesteric liquid crystal. The monochromatic band is thermally and reversibly tuned ∼300 nm within 5.3 °C. Color-selective optical edge detection is verified by a series of chromatic images. This work introduces a thermally responsive liquid crystal device to release the color dimension of optical edge detection, which may upgrade existing imaging processing techniques. [ABSTRACT FROM AUTHOR]

Objective: To explore the mechanism of Qingjin Huatan Decoction in regulating iron metabolism by regulating inflammatory factors in the inflammatory environment of chronic obstructive pulmonary disease. Methods: The COPD model was prepared by tracheal drops of lipopolysaccharide (LPS) combined with smoke. 40 rats were randomly divided into normal group, COPD group, roxithromycin western medicine group and Qingjin Huatan Decoction traditional Chinese medicine group (n=10). Post-molding drug administration intervention, Qingjin Huatan Decoction Chinese medicine group was given 14.62 g/kg (Qingjin Huatan Decoction), roxithromycin western medicine group was given 0.015 75 g/kg (roxithromycin), COPD group and normal group were given normal saline 10 mL/kg, twice a day. The expressions of Hepcidin, IL-1β, IL-10 and TGF-β1 in serum of rats in each group were detected by ELISA. WesternBlot and qRT-PCR were used to detect the expression of TF and IREB2 protein and mRNA in lung tissues of each group. Results: Compared with the normal group, the contents of serum Hepcidin and IL-10 in COPD group were significantly decreased (P<0.01), while the contents of serum IL-1β and TGF-β1 were significantly increased (P<0.01, P<0.05).Compared with COPD group, the contents of serum Hepcidin and IL-10 were significantly increased in the two drug groups (P<0.01), while the contents of serum IL- 1β and TGF-β1 were significantly decreased in the two drug groups (P<0.05).Compared with normal group, TF mRNA and protein expression in COPD group were increased (P<0.01), while IREB2 mRNA and protein expression were decreased (P<0.01).Compared with COPD group, TF mRNA and protein expressions in lung tissues of the two-drug group were decreased (P<0.01, P<0.05), while IREB2 mRNA and protein expressions were increased (P<0.01). Conclusion: Iron metabolism is related to inflammation. Qingjin Huatan Decoction can regulate iron metabolism in inflammatory environment to treat COPD. [ABSTRACT FROM AUTHOR]

The imperial yellow‐glazed porcelain of the Ming Dynasty originated in the early15th century AD. Its high status and fine material quality make its beginnings, glaze characteristics and technological development worthy of further study. In this research, EDXRF, optical microscope and spectrophotometer were used to investigate both yellow‐glazed tiles and imperial porcelains of the early Ming Dynasty. It was found that the imperial yellow glaze is essentially similar to that used on glazed tile, both of which are high‐lead, low‐temperature compositions. However, there is a clear high‐temperature glaze between the coloured glaze and the body paste of imperial yellow‐glazed porcelain, which makes the glaze brighter and provides a warm jade‐like texture. In addition, the slightly bluish tones of the clear glaze and body paste of imperial yellow‐glazed porcelain correct the colour of the iron‐based, low‐temperature lead glaze, which has a reddish component. Therefore, compared with the early Ming Dynasty glazed tiles, imperial yellow‐glazed porcelain achieves a higher glaze brightness and a purer yellow hue. In summary, imperial yellow‐glazed porcelain can be seen as a combination of lead‐glazed tile and Jingdezhen porcelain technology in the early Ming Dynasty. [ABSTRACT FROM AUTHOR]

Angiolipomas are frequently observed benign tumors. They have a typical vascular component and are often located in subcutaneous tissues, and more rarely, in the gastrointestinal tract. We present the case of a 58-year-old man who complained of abdominal discomfort in the left lower quadrant and two to three bloody stools a day without any obvious etiology. These symptom became more severe in the next three days, due to a large angiolipoma located in the descending colon, which was diagnosed intraoperatively. In a literature review, we found only 22 cases of angiolipomas involving the gastrointestinal tract which are reported in the literature from 1960 to 2012 in PubMed; the key words used in the search are gastrointestinal tract angiolipoma, esophagus, stomach, duodenum, intestine, ileocecal junction, colon, rectum angiolipomas. Colon angiolipoma with intussusception, as seen in this case, is rare and may require emergent surgical intervention. [ABSTRACT FROM AUTHOR]

Extrathoracic solitary fibrous tumors (SFTs) have been described at almost every anatomic location of human body, but reports of SFT in the abdominal cavity are rare. We herein present a rare case of SFT originating from greater omentum. Computed tomography revealed a 15.8 cm × 21.0 cm solid mass located at superior aspect of stomach. Open laparotomy confirmed its mesenchymal origin. Microscopically, its tissue was composed of non-organized and spindle-shaped cells exhibiting atypical nuclei, which were divided up by branching vessel and collagen bundles. Immunohistochemical staining showed that this tumor was negative for CD117, CD99, CD68, cytokeratin, calretinin, desmin, epithelial membrane antigen, F8 and S-100, but positive for CD34, bcl-2, α-smooth muscle actin and vimentin. The patient presented no evidence of recurrence during follow-up. SFT arising from abdominal cavity can be diagnosed by histological findings and immunohistochemical markers, especially for CD34 and bcl-2 positive cases.

Objective: To observe treadmill exercise test (TET) characteristics in patients with myocardial bridging (MB)., Methods: TET results from January 2003 to December 2010 were retrospectively analyzed in 156 patients with confirmed MB diagnosis. MB patients were divided into smoking group (68 cases) and non-smoking group (88 cases). Coronary angiography results were used to analyze the relations between MB length, myocardial ischemia and exercising duration., Results: (1) MB was documented on two coronary arteries in 2 patients (1%), MB was detected in single artery in 154 patients (99%), of whom 146 cases were located at left anterior descending artery, 8 cases were located at right coronary artery. The degree of narrowing of MB was graded 1 (less than 50%) in 16 patients (10%), grade 2 (50% to 75%) in 108 patients (69%) and grade 3 (greater than 75%) in 32 patients (21%). The length of MB ranged between 4 to 40 mm, MB length was less than 10 mm in 40 patients (26%), between 11 to 20 mm in 48 patients (31%), between 21 to 30 mm in 44 patients (28%), greater than 31 mm in 24 patients (15%). (2) TET positive rate was 41% (64/156) and the TET positive rate was significantly higher in smoking group than in non-smoking group [57% (39/68) vs. 28% (25/88, P < 0.01)]. (3) The length of MB was positively related to the ST-segment depression (r = 0.723, P < 0.01) and negatively related to exercising duration (r = -0.828, P < 0.01). Heart rate was positively related to the ST-segment depression (r = 0.368, P < 0.01)., Conclusions: TET may serve as a good test to assess myocardial ischemia in patients with MB. The length of MB is positively related with myocardial ischemia and negatively related with exercising duration. Smoking might increase myocardial ischemic incidence in MB patients, MB patients should be advised to stop smoking.

Purpose: To explore the relationship between orthodontic treatment and temporomandibular joint disorder(TMD)., Methods: The questionnaire and clinical examination were administered in 173 cases who underwent orthodontic treatment (orthodontic group),95 cases with morphologic malocclusion(malocclusion group) and 32 cases with normal occlusion (normal group) to collect symptoms and signs of TMD, the data were analyzed in the databases designed according to the modified Helkimo indices. SPSS10.0 software package was used for Wilcoxon test., Results: There were statistically significant differences between the orthodontic group and malocclusion group in the distribution of anamnestic, clinical dysfunction and occlusion indices(P<0.001). There were statistically significant differences between the orthodontic group and normal group with regard to the distribution of anamnestic, clinical dysfunction indices(P<0.001). No statistically significant differences were found between the orthodontic group and normal group in terms of occlusion indices(P>0.05)., Conclusion: The results suggest that patients undergoing orthodontic treatment have more symptoms and signs of TMD in the time ranged.

Objective: To study the therapeutic effect of bleomycin-A5 injection under eletrolaryngoscope for treatment of large laryngopharyngeal and laryngeal hemangioma., Methods: Intratumor bleomycin-A5 injection under eletrolaryngoscope was performed in 18 cases of large laryngopharyngeal and laryngeal hemangioma with surface anaesthesia, for totally 7 to 14 (mean 10.2) injections in each case., Results: Twelve patients were cured and 6 showed obvious improvement. Follow-up of the patients for over one year found no recurrence of the hemangioma., Conclusion: Bleomycin-A5 injection is a minimal invasive procedure for treatment of large laryngopharyngeal and laryngeal hemangioma, causing less pain and better preserving the laryngeal function without the necessity of tracheotomy.

Purpose: To evaluate the bond properties of Vitadur alpha on dental zirconia framework material., Methods: Vitadur alpha was sintered on the surface of four groups' presintered zirconia ceramic plates which were dealt with respective procedures. SEM, energy distribution spectrum and thermal shock test were applied to evaluate the sintering properties of such interfaces. Shear bond strength of Vitadur alpha-zirconia interfaces were measured, and the results were analysed by ANOVA method., Results: Satisfying result was obtained in Vitadur alpha sintered on the zirconia framework material, furthermore, chemical combination between the two laminates were confirmed by means of energy distribution spectrum. The shear bond strength of 3Y-TZP-Vitadur alpha dentin differed under different surface conditionings: highest shear bond strength appeared in the group conditioned with water sand paper (35.1662MPa), shear bond strength of the group conditioned with sandblast (27.8283MPa) was better than that of non-conditioning group (20.9677MPa), diamond condition group had the lowest shear bond strength (15.3025MPa), significant difference existed between each group (P<0.01)., Conclusion: Further clinical research could be carried out on Vitadur alpha and zirconia ceramic framework under conditioning with sandblast.