Objective To enhance the application of WLAN technology in hospital information construction.Methods Solving methods were proposed to the problems in application so as to enhance the awareness of safety.Results By analyzing and solving problems,WLAN was used in hospital more safely.Conclusion The ensurance of wireless network security can impel a safe and positive application of wireless network in the hospital information field as the reasonable development of the existing network.

BACKGROUND: The intraocular lens can move forward during cataract optic capsular surgery,but the changes in the human eye diopter cannot be monitored in such a dynamically adjustment process,it is difficult to obtain clinical data which could reveal the correlation between intraocular lens forward and human eye diopter adjustment.OBJECTIVE: To observe the influence of intraocular lens movement on the adjustment of human eye diopter.METHODS: Based on Hwey-Lan Liou eye model,using optical design software ZEMAX to realize ray tracing,the relationship of intraocular lens forward in the eye with the adjustment of human eye diopter was investigated.RESULTS AND CONCLUSION: Once the intraocular lens forward for a certain distance,human eye obtained the amount of accommodating diopter was not constant; the adjustment amount depended on the axial length and the required intraocular lens implantation,especially in axial length; for the intraocular lens forward of the surgical eyes at different axial lengths,the amount of accommodating human eye diopter was negatively correlated with axial length.

Colorectal cancer is one of the most common malignant tumors of digestive system.There are significant differences between young patients and other ages in aspects of the disease features, biological characteristics, risk factors, clinical treatment and prognosis, etc.And the analysis of young colorectal cancer patients′ characteristics can provide new ideas for clinical treatment.

Objective: Gallbladder polyps are frequently discovered in the past decade. Ifthe polyps are oenign,without concomitant stone and the gallbladder has a good function, it is not an absolutely indication for cholecystectomy. For this reason percutaneous endoscopio polypectomy of the gallbladden polyps were developed and applied. Methods: Among those who underwent peroutaneous endosoopic polypectomy of the gallbladder, 85 patients with gallblaeder polyps were studied. Under the epidural anesthesia, cholecystoscope was introduced into the gallbladder. The polyps were coagulated by self-made miorowave ceagulator and then resected for histopathelogical evaluation. The preserved gallbladders were followed up to evaluate the effioacy of this minimally invasive therapy. Results: All precedures were eventful with mean operation time of 1h to 1. 5h. Sixty seven patients were followed-up for a mean of 5.5 yeah (2～9 years) and showed all patients to be symptom free and in 64 cases the gallbladder function was found to be well preserved without recurrence of polyps and occurrenca of gallstones on ultraSound. Conclusion: The procedure reposed is a reliable, simple,effective and minimally invasive technique to remove gallbledder polyps and to preserve gallbladder function for the patients who have the benign gallbladder polyps.

BACKGROUND:There are many methods in the clinic to treat pelvic fractures, mainly conservative treatment, internal fixation and external fixation. Conservative treatment often causes complications due to poor reduction after fractures. Fixation has good effects on repair of unstable fractures, but fixation is seldom used for pelvic fractures.
OBJECTIVE:To observe the effects of internal fixation on unstable pelvic fractures, and compare with conservative treatment and external fixation.
METHODS:126 cases of unstable pelvic fractures from Longhua District People’s Hospital of Shenzhen City from January 2008 to June 2014 were divided into three groups:conservative treatment group, external fixation group and internal fixation group (n=42). After treatment, patients received X-ray examination. Lindahl imaging criteria were used as evidence. The quality of fracture reduction was evaluated. Patients were regularly fol owed up after treatment. The recovery of limb function was evaluated according to Majeed standard. Repair effects, the excel ent and good rates of fracture healing and cal us growth were evaluated in the last fol ow-up.
RESULTS AND CONCLUSION:During the last fol ow-up, the total efficiency was 81%in the internal fixation group, 69%in the conservative treatment group, and 71%in the external fixation group, and results were significantly better in the internal fixation group than in the other two groups (P<0.05). The Lindahl and Majeed scores were significantly higher in the internal fixation group than in the other two groups (P<0.05). These results suggest that internal fixation for unstable pelvic fracture obtained better recovery effects and efficiency than conservative treatment and external fixation. Thus, the internal fixation is more suitable for patients with unstable pelvic fractures.

Objective To investigate the effect of spine disease on pelvic sagittal alignment and hip biomechanics in total hip arthroplasty (THA) patients. Methods The clinical data of 120 THA patients who had normal lumbar spine (control group) and 40 THA patients who had lumbar disease (lumbar disease group) between January 2013 and September 2015 in Shenzhen Longhua District People′s Hospital were analyzed. Radiographical parameters, like lumbar lordosis (LL), pelvic incidence(PI), pelvic tilt (PT) and sacralslope (SS) were collected and compared. Normal and pathological musculoskeletal simulation model was established based on standing and sitting X-ray pelvic alignment. Hip contact force, moment and muscle forces in standing posture and sitting to standing posture were calculated. Results The value of LL in lumbar disease group was shorter than that in control group:(34.23 ± 12.81)°vs. (47.26 ± 14.67)°, P＜0.05. Butthe value of PI in two groups had no significant difference (P>0.05). The value of PT and SS in two groups had significant differences: (17.51 ± 2.31)°vs. (8.31 ± 1.34)°,(27.61 ± 1.72)°vs. (38.01 ± 1.92)°, P＜0.05. At standing position and sitting moment position, the joint force and moment value between disease model and control model had significant differences (P＜0.05), and the differences were mainly in sagittal and vertical axis (P＜0.05). At standing position and the moment of sitting up, the extorsion muscle activation was at lower level and had no significant difference (P＞0.05). Conclusions Pelvic sagittal alignment pathology could change hip biomechanical situation, making threats to hip stability.

Amylosporus sulcatus sp. nov. is described from Nonggang Nature Reserve, southern China, on the basis of morphological and molecular data. The morphological description and illustrations for the new species are provided. The species is characterized by pileate and stipitate basidiocarps. The pileus surface is obviously concentrically and radiately sulcate and tomentum, and the pore surface is snow white. Phylogenetic analyses based on sequences of the internal transcribed spacer and nuclear large subunit ribosomal DNA confirmed it to be a new species.
China* ; Classification ; DNA, Ribosomal ; Fruiting Bodies, Fungal ; Snow