The aircraft industry is crucial to the economy and security of a nation. In this paper, the spatial characteristics and patterns of the aircraft industry are analyzed on different spatial scales. It is found that there is a 'Matthew effect' in the global aircraft industry and the spatial evolution of the industry is consistent with the industrialization process of the whole country. It is also revealed that the spatial evolution of the country is driven by both the centripetal forces including capital, talents, technology and agglomeration economies and the centrifugal forces including the comparative advantage, cost &risk sharing, emerging markets, development policy for less-developed regions and the military imperative. These forces have both market-stabilizing and market-disrupting effects on the spatial evolution of the aircraft industry. The study suggests that lessons drawn from the experiences in the United States and France are expected to be conducive to the rise of China's aircraft industry in the future.

Ovarian cancer has the highest mortality rate among gynecologic malignancies in developed countries. Most women present with advanced disease and require a combination of surgery and chemotherapy. One patient presented with recurrent ovarian cancer was initially treated with taxol and platinum-based compounds. Although response to these agents occurred, tumor progression was evident by elevated CA 125 levels and CT findings after a period of 4 months. This patient was then treated with topotecan and exhibited a response and stopped therapy. Topotecan exhibited activity in this patient with ovarian cancer resistent to both platinum and paclitaxel. We report a case of advanced ovarian cancer which was treated with topotecan after taxol-cisplatin treatment failed.
Developed Countries ; Drug Therapy ; Female ; Humans ; Mortality ; Ovarian Neoplasms* ; Paclitaxel ; Platinum ; Topotecan*

No abstract available.
Endoderm* ; Endodermal Sinus Tumor* ; Female ; Ovary*

No abstract available.
Fallopian Tubes* ; Female

Histiocytosis, Langerhans-Cell ; Humans ; Infant ; Male ; Temporal Bone ; pathology

Objective To evaluate the clinical effect of CT guided localization with a hook-wire system united with single port video-assisted thoracoscopic resection (VATS)for small ground glass opacity (GGO) pulmonary nodules (CT lesion diameter <1 .5 cm and no pleural changes).Methods Fifteen patients with small GGO pulmonary nodules who underwent CT-guided transthoracic localization with a hook-wire system in operation room after anesthesia were performed with single port VATS from August 2009 to March 201 3.The accuracy of puncture location,complications,resection rate and pathological results were evaluated.Results All patients underwent CT-guided hook-wire localization and single port VATS resection.The success rate of localization was 1 00%,and the average procedure time was (1 3.60 ±2.06)min,only 1 patient occurred mini-mal pneumothorax.The resection rate of single port VATS was 1 00%,and lobectomy performed in 1 patient, segmentectomy in 1 ,and local resection in 1 3.Pathological diagnosis:adenocarcinoma in situ in 9,atypical adenomatous hyperplasia (AAH)in 5,AAH and adenocarcinoma in situ in 1 .Post-operation follow-up showed all patients survived,and no recurrence and metastasis.Conclusion In operation,use of CT guided localiza-tion with a hook-wire system for small GGO pulmonary nodules (CT lesion diameter <1 .5 cm and no pleural changes)united with video-assisted thoracoscopic resection is accurate,quick and safe,and it has good clinical value.

Aortic dissection is a common disease which is very dangerous,with high mortality rate.Bypass graft for the treatment of DeBakey Ⅲ dissection has outstanding advantages than the ordinary replacement of thoracic aorta,and some patients will inevitably require the use of the procedure.The purpose of this study was to explore the impact of the subclavian artery-abdominal aorta bypass graft on hemodynamic parameters in the false lumen and the effectiveness of surgical treatment.First of all,the idealized three-dimensional geometric models of DeBakey Ⅲ aortic dissection and its subclavian artery-abdominal aorta bypass graft operation were constructed,respectively.Then the models were imported into ANSYS 11.0 for finite element analysis.Results of numerical simulation showed that both velocity and pressure of the blood flow were reduced after bypass graft at the entrance and in the internal sac of false lumen,which is very favorable for reducing the impact of blood flow on false lumen,slowing down the further expansion of entrance,preventing the breakdown of false lumen,and promoting the healing of dissection.Therefore,the subclavian artery-abdominal aorta bypass graft operation is an effective surgical method for the treatment of DeBakey Ⅲ aortic dissection in some particular cases.This operation is with great prospects for clinical application.

The process mechanism and current application status of boron removal in reverse osmosis(RO)desalination were introduced.The characteristic and proper application range of eachboron removal process was summarized.Also,the running conditions of two practical desalination cases were analyzed and compared.Eventually,the future of application and the research direction of boron removal process in RO desalination were prospected.

Objective To compare the efficacy and safety of Etomidate-Dexmedetomidine and Propofol-Dexmedetomidine sedation in patients undergoing endoscopic radiofrequency ablation of gastroesophageal relfux disease (GERD).Methods Sixty adult patients, scheduled for elective endoluminal radiofrequency ablation for GERD under sedation were prospectively randomized into Etomidate-Dexmedetomidine (Group-E,n = 30) or Propofol-Dexmedetomidine (Group-P,n = 30) group. A bolus of 0.2 μg/kg of intravenous Dexmedetomidine was followed by intermittent Etomidate or Propofol injection during the procedure in order to maintain a proper depth of sedation with a Ramsay sedation scores of 5~6. Heart rates, mean blood pressure, oxygen saturation, respiratory rates and Ramsay sedation scores were recorded before sedation (T0), at the beginning of the examination (T1), during radiofrequency energy delivery (T2), at the time of gastroscopy (T3) and at the end of therapy (T4). Inter-group differences in sedation proifles (duration, time to recovery, incidence of body movement, Ramsay sedation scores and satisfaction of patient and endoscopist) and cardio-respiratory responses (heart rate, mean arterial pressure, oxygen saturation) were determined during and after radiofrequency ablation.Results No difference was found for therapy duration, anesthesia time or the time to recovery between Group-P and Group-E. Patients receiving Propofol experienced more bradycardia (Ρ = 0.032) and had higher incidences of vasoactives used (Ρ = 0.002) compared with that receiving Etomidate. Oxygen saturation in T1 (Ρ = 0.023) and T2 (Ρ = 0.009) was lower in the Group-P. No significant difference was found for other indicators.Conclusion Etomidate-Dexmedetomidine sedation was superior to Propofol-Dexmedetomidine sedation for GERD radiofrequency therapy with more stable cardio-respiratory responses.