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Y Jiang, X X Rong, P Chen, Y J Xu, G X Zhu
Objective: To explore the treatment of senile osteoporotic femoral fractures after using internal fixation of bone cement dry prosthetic. Methods: Twelve patients aged from 74 to 94 years with mean age of (84.0±2.5) years with internal fixation of bone cement dry prosthetic surgery who were treated at Department of Orthopaedics in Nanjing Medical University Affiliated Wuxi Second Hospital between May 2013 and May 2015 were retrospectively analyzed. There were 8 male and 4 female, 10 cases of tumble and 2 cases of traffic injury...
March 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
H Zhang, C Xu, Y Liu, W Yuan
Objective: To investigate the function and mechanism of miR-563 in regulating the ossification of posterior longitudinal ligament (OPLL) cells. Methods: Posterior longitudinal ligament cells were isolated and cultured from both OPLL patients (n=6) and non-ossified ligament patients (PLL, n=4) who underwent spine surgery from March to June 2015 in First Department of Spinal Surgery, Changzheng Hospital Affiliated to Second Military Medical University. The expression levels of miR-563 in OPLL and PLL groups were analyzed using real-time PCR...
March 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
H L Wang, L Jiang, F Z Lyu, X S Ma, X L Xia, J Y Jiang
Objectives: To study the relationship between the anatomical parameters of transverse foramen and intervertebral discs in the cross-section of the cervical spine in healthy adults, and to evaluate the risk of vertebral artery injury in the anterior cervical spine surgery. Methods: There were 24 healthy adults(12 male, 12 female) underwent neck CT angiography with clear vertebral artery and the adjacent structure imaging from June to December 2014 in Huashan Hospital, Fudan University. The anatomical parameters of vertebral artery V2 segment with lower cervical vertebrae and intervertebral discs were measured by cross-sectional images of C(3-6)...
March 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
X Sun, X Chen, Z H Chen, Z Z Zhu, F Zhu, Z Liu, B P Qian, B Wang, J Qiao, Y Qiu
Objective: To investigate the risk factors of proximal junctional kyphosis(PJK) in young children who underwent posterior hemivertebra resection and instrumented fusion. Methods: This study reviewed the charts and radiographs of 136 consecutive young children with congenital scoliosis who underwent posterior hemivertebra resection and instrumented fusion in Department of Orthopaedics, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School from January 2009 to June 2014, including 75 males and 61 females, with an average age of (5...
March 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Z Liu, Y Qiu, Y Li, Z H Zhao, B Wang, F Zhu, Y Yu, X Sun, Z Z Zhu
Objective: To investigate the clinical outcomes and the accuracy of O-arm-navigation system assisted pedicle screw insertion in dystrophic scoliosis secondary to neurofibromatosis type Ⅰ(NF-1). Methods: A retrospective study was conducted in 41 patients with dystrophic NF-1-associated thoracic scoliosis who were surgically treated at Department of Orthopaedics, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School between June 2012 and October 2014 with more than 18 months follow-up...
March 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
X Liu, H Feng, L Hong, H Zhang
Objective: To evaluate the necessity of arthroscopic suture repair for the stable ramp lesion. Methods: From August 2008 to April 2012, 91 patients of consecutive cases were diagnosed as anterior cruciate ligament (ACL) injury associated with stable ramp lesion in Department of Sports Medicine Service of Beijing Jishuitan Hospital. All of the diagnosis was confirmed during arthroscopic surgeries. The patients were randomized into suture repair group and control group. The ACL was reconstructed using auto grafts of hamstring...
March 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Y Xin, N Zhang
Objective: To guide the rational use of antibiotic drugs in clinical practice for doctors by the analysis of pathogens distribution, transition and drug resistance of bacteria in sputum samples of pneumoconiosis patients combined with lower respiratory tract infection. Methods: 2 199 qualified sputum samples from 214 pneumoconiosis patients collected from January 2008 to December 2012 were examined by bacterium or fungus education. BioMerieux API and Eastern Cowin application software were used to do bacterial identification, and K-B method recommended by the NCCLS was used to take drug sensitivity tests...
January 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
M Huang, Q Cai, H H Li, D Lou
Objective: To investigate the impacts of paraquat on microRNA profiles in apoptosis of human neural progenitor cells (hNPCs) and to explore miRNA targets and biological functions. Methods: We used hNPCs as a popular in vitro cell model system for characterizing the neurotoxicity. Cell apoptosis was detected by Annexin V-APC/7-AAD after 24 h treatment with different concentrations of PQ (0, 5, 10, 20, 40, 80 μmol/L). Microarray profiling expression of PQ treated cell line and their corresponding control was determined and differentially expression miRNAs were confirmed by quantitatively real-time PCR...
January 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
X C Xu, J X Cao, S F Yu
No abstract text is available yet for this article.
December 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
H Zhao, L Song, Y Qiang, H R Liu, F Y Qiu, X Z Li, H Song
Objective: To investigate the association between occupational stress and activity of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in patients with metabolic syndrome. Methods: A case-control study was performed. According to inclusion and exclusion criteria, among the staff members of enterprises and public institutions aged 20~60 years who underwent physical examination in The Affiliated Hospital of Ningxia Medical University and The People's Hospital of Wuzhong from October 2011 to October 2012, 622 patients with metabolic syndrome who did not have a blood relationship with each other were enrolled as case group, and 600 healthy staff members who also did not have a blood relationshipwith each otherwere enrolled as control group...
December 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
H Y Qiu, P Ren, R Li, Q L Zhang, X T Lu, Q Niu
Objective: To investigate the influence of occupational aluminum exposure on cognitive function and its relationship with tri-methyl histone H3 lysine residues 4 points (H3K4me3) and brain-derived neurotrophic factor (BDNF) levels. Methods: By cluster random sampling method, a total of 235 cases of male workers selected from a Shanxi aluminum factory were recruited in the study in September 2015. Used the occupational epidemiological investigation questionnaire, which included Mini-Mental State Examination (MMSE) , Clock Drawing Test (CDT) , Digit Span Test (DST, including forward test DSFT and backward test DSBT) , Fuild Object Memory Evaluation (FOME) and Verbal Fluency Test (VFT) , to collect workers' basic information and assess their cognitive function score...
December 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
Vincent Mariage, Jacques Pelon, Frédéric Blouzon, Stéphane Victori, Nicolas Geyskens, Nadir Amarouche, Christine Drezen, Antoine Guillot, Michel Calzas, Magali Garracio, Nicolas Wegmuller, Nathalie Sennéchael, Christine Provost
The in situ tests of first ever autonomous aerosol and cloud backscatter LIDAR (light detection and ranging) systems implemented on buoys for Arctic observations has been achieved in 2015 within the French EQUIPEX IAOOS project. The environmental and operational constraints were met by adopting a concept of a fibered microjoule lidar system using a laser diode. Two systems have been developed with and without polarization analysis capability. A specific optical design was used for polarization discrimination...
February 20, 2017: Optics Express
Zhengyong Liu, Lin Htein, Lun-Kai Cheng, Quincy Martina, Rob Jansen, Hwa-Yaw Tam
In this paper, we present a miniature fluidic flow sensor based on a short fiber Bragg grating inscribed in a single mode fiber and heated by Co<sup>2+</sup>-doped multimode fibers. The proposed flow sensor was employed to measure the flow rates of oil and water, showing good sensitivity of 0.339 nm/(m/s) and 0.578 nm/(m/s) for water and oil, flowing at v = 0.2 m/s. The sensitivity can be increased with higher laser power launched to the Co<sup>2+</sup>-doped multimode fibers. A small flow rate of 0...
February 20, 2017: Optics Express
Mingying Song, Ali Karatutlu, Isma Ali, Osman Ersoy, Yun Zhou, Yongxin Yang, Yuanpeng Zhang, William R Little, Ann P Wheeler, Andrei V Sapelkin
We demonstrate a spectroscopic imaging based super-resolution approach by separating the overlapping diffraction spots into several detectors during a single scanning period and taking advantage of the size-dependent emission wavelength in nanoparticles. This approach has been tested using off-the-shelf quantum dots (Invitrogen Qdot) and in-house novel ultra-small (~3 nm) Ge QDs. Furthermore, we developed a method-specific Gaussian fitting and maximum likelihood estimation based on a Matlab algorithm for fast QD localisation...
February 20, 2017: Optics Express
Jianwei Chen, Hiu Hung Lee, Dongping Wang, Si Di, Shih-Chi Chen
We present a high-precision hybrid imprinting method to fabricate multi-layer micro-optical structures on nonplanar substrates using a custom-built vacuum imprinting system; with the application of kinematic couplings that align the flexible stamps in all six degrees of freedom, a cross-layer pattern registration precision of 400 nm has been achieved on nonplanar substrates. To demonstrate the precision and feasibility of the new process and instrument, we have designed and fabricated a multi-layer artificial compound eye (ACE) for multispectral imaging...
February 20, 2017: Optics Express
Hyosun Kim, Young-Jun Seo, Byungchoon Yang, Hye Yong Chu
Black perception (perceived blackness of gray 0) of transparent OLED displays was studied in this paper. In pre-test, maximum luminances of acceptable black level under various surround conditions were found in a non-transparent display. In the first experiment, the luminance of a transparent patch was compared with that of an opaque one in order to find the effect of transparency on black perception. As a result, participants perceived the transparent patch darker than the opaque one even when the two were in similar luminance levels, which we termed as the "Transparency Effect...
February 20, 2017: Optics Express
Huu-Dat Nguyen, Airán Ródenas, Javier R Vázquez de Aldana, Guillermo Martín, Javier Martínez, Magdalena Aguiló, Maria Cinta Pujol, Francesc Díaz
We report mid-infrared LiNbO<sub>3</sub> depressed-index microstructured cladding waveguides fabricated by three-dimensional laser writing showing low propagation losses (~1.5 dB/cm) at 3.68 µm wavelength for both the transverse electric and magnetic polarized modes, a feature previously unachieved due to the strong anisotropic properties of this type of laser microstructured waveguides and which is of fundamental importance for many photonic applications. Using a heuristic modeling-testing iteration design approach which takes into account cladding induced stress-optic index changes, the fabricated cladding microstructure provides low-loss single mode operation for the mid-IR for both orthogonal polarizations...
February 20, 2017: Optics Express
Si Tan, Suwen Wang, Shailendhar Saraf, John A Lipa
Ultra-high sensitivity temperature sensing and stable thermal control are crucial for many science experiments testing fundamental theories to high precision. Here we report the first pico-kevin scale thermometer operating at room temperature with an exceptionally low theoretical noise figure of ~70pK/Hz at 1 Hz and a high dynamic range of ~500 K. We have experimentally demonstrated a temperature sensitivity of <3.8nK/Hz at 1 Hz near room temperature, which is an order of magnitude improvement over the state of the art...
February 20, 2017: Optics Express
Hitoshi Hiura, Kazuteru Komine, Jun Arai, Tomoyuki Mishina
Static convergence and accommodation responses were measured by comparing integral photography images, binocular stereoscopic images, and real objects in a measurement range from 450 to 900 mm. The experimental results were evaluated with a multiple comparison test. It was found that six of the ten observers did not have an accommodation-convergence conflict in viewing integral photography in the range. Moreover, the required resolution was found to be 0.7 or more and less than 1.4 cycles per degree for inducing accommodation...
February 20, 2017: Optics Express
Kang Tan, Ying Huang, Guo-Qiang Lo, Changyuan Yu, Chengkuo Lee
We experimentally realize a compact wideband polarization splitter and rotator (PSR) with CMOS compatibility. The fabricated PSR is then tested by utilizing a fabrication-tolerant TE-pass on-chip polarizer we propose to practically solve the issue of accurately aligning the polarizations in fiber and modes on chip. Both of these polarization handling devices take the advantage of bend structure that confines TE mode better than TM mode. The fabricated PSR has a high TM-TE and TE-TE mode conversion efficiency of -0...
February 20, 2017: Optics Express
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