马里亚斯短篇小说中幽灵形象的主体性建构

幽灵作为西班牙作家马里亚斯十分偏爱的形象,集中表达了马里亚斯对于生命与时间问题的哲学思考。作家尤其在其短篇小说中塑造了诸多幽灵形象,超越了生与死的生命形态、主客体的界限与线性时间法则,为透视人的生存境况提供了超验性视角,并以其特有的生存“间性”成为抵抗主体性危机的积极因素。马里亚斯通过幽灵形象的塑造回应了后现代语境中对死亡、他者、时间等概念的探讨,赋予幽灵形象以主体性建构的积极力量。

Antiviral Activity of the Effective Monomers from Folium Isatidis Against Influenza Virus in Vivo

In order to evaluate the anti-influenza virus activity of the effective monomer from Folium Isatidis (FI) in vivo,we established mice model with viral pneumonia and divided them into 3 different dose groups,then observed their lung indexes,pulmonary pathological changes,pulmonary virus hemagglitination titers,living time and death rates.The results showed that the monomer could reduce the pulmonary index from 2.64 to 1.93,1.63 and 1.40 (P<0.01) and decrease the hemagglitination titer from 1.15 to 0.84,0.70 and 0.59 (P<0.01).In addition,different groups of FI could significantly lessen the mortality rate from 100% to 30%,25% and 15%,and prolong the living time from 5.1d to 6.5d,8.4d and 8.9d respectively(P<0.01).The high dose (75 mg/kg/d) has the similar effect with 100 mg/kg/d dose of virazole(P>0.05),and more effective than 200 mg/kg/d dose of antiviral liquor (P<0.05).

The relationship between level of plasma D-dimer and survival time in metastatic gastric cancer patients

Objective:The principal purpose of this study was to determine the relationship between level of plasma D-dimer and survival time in metastatic gastric cancer patients.Methods:We retrospectively collected the data of plasma D-dimer in metastatic gastric cancer patients admitted in our Department (Department of Oncology,The Affiliated Changzheng Hospital,The Second Military Medical University,Shanghai,China) from October 2006 to October 2008 and analyzed the relationship between level of plasma D-dimer and survival time along with other clinicopathologic parameters.Results:A total of 82 patients were studied in our research,52 were males and 30 females,and the mean age was 57 years.The 48 cases had a normal plasma D-dimer level (<300μg/L) and 34 had a high plasma D-dimer level (≥300μg/L).In the normal and high plasma D-dimer level groups,the mean survival times were 10.9 (95% CI:9.8-12.2) months and 6.8(95% CI:4.4-7.6) months respectively,and the difference was statistically significant.Conclusion:Metastatic gastric cancer patients with high plasma D-dimer level had significantly shorter survival time than those with normal plasma D-dimer level.Level of plasma D-dimer can be referred as a potential predictor in metastatic gastric cancer patients.

Surgical outcomes in patients with T4 gastric carcinoma: a retrospective study of 162 patients

Objective: There is controversy about the best therapeutic surgical approach for treatment of patients with T4 gastric cancer. We evaluated the survival benefit of resection in this group of patients. Methods: We retrospectively reviewed the hospital records of 288 patients with T4 gastric carcinoma to compare the clinicopathological results in patients with curative resection (n = 49) with patients with non-curative resection (n = 113) from 1980 to 2000. Results: Curative resection was performed in 49 (30.2%) patients, with the pancreas being the most frequently resected organ. The 5-year survival rate was 9.3% and the median survival time was 12 months for all 162 registered patients. The 5-year survival rates in patients after curative and non-curative resection were 14.3% vs 7.1% respectively. These values differed considerably between the two groups (P = 0.033). Operative type and curability were independent statistically significant prognostic parameters. Conclusion: Curability was an independent prognostic factor among all registered patients. Patients with T4 gastric carcinoma might be benefited from curative resection.

Gemcitabine combined with cisplatin in the treatment of advanced malignant pleural mesothelioma (MPM): Institutional experience

Objective： The aim of our study was to evaluate the efficacy and safety of gemcitabine and cisplatin in patients with previously untreated advanced malignant pleural mesothelioma （MPM）. Methods： Thirty-three eligible patients with histologically proven advanced MPM with ECOG PS of 〈 2 and had adequate liver and kidney functions received gemcitabine （1000 mg/m2） on days 1 and 8 combined with cisplatin （80 mg/m^2） on day 1. Results： The majority of the study group were males and constituted 87.9% （n = 29）, while females constituted 12.1% （n = 4）. The median age was 52 years and ranged from 37 to 69 years. Regarding SWOG performance status, 5 patients were PS 0, 21 patients were PS 1 and 7 patients were PS 2. Regarding pathological subtypes, epithelial histology represented 84.8% of the study （n = 28） while sarcomatoid type represented 6% （n = 2） and biphasic type accounted for 9% （n = 3）. Regarding staging according to IMIG staging system, 12.1% of patients were stage Ⅱ, 54.5% were stage Ⅲand 33.3% were stage Ⅳ. Only one patient （3%） had attained a complete response, 18 patients （54.5%） showed partial response, 12 patients （36.4%） showed stationary disease, while 2 patients （6.1%） showed progressive disease. The correlation between response rate obtained and PS was statistically significant （P = 0.029）. After a median follow-up of 14.4 months, the median survival time was 20.3 months （95% Cl： 14.58-26.01 months） and the progression free survival time was 11.8 months （95% CI： 10.76-12.83 months） Conclusion： The combination of gemcitabine and cisplatin is an active and safe treatment in patients with MPM. Further larger comparative studies are warranted to document this finding.

Gemcitabine and Docetaxel as a Second-Line Treatment in Advanced Soft Tissue Sarcomas

OBJECTIVE Promising anti-tumor activity in patients with metastatic or unresectable soft tissue sarcomas has been reported with gemcitabine and/or docetaxel. METHODS Forty patients with advanced soft tissue sarcomas refractory to first-line chemotherapy treatment were enrolled. They received combination of gemcitabine at dose of 900 mg/m2 on days 1 and 8 and docetaxel at dose of 100 mg/m2 on day 8, and had this regimen repeated every 3 weeks. If the patients had received the pelvic irradiation in advance, gemcitabine dose was reduced to 675 mg/m2 on days 1 and 8 and docetaxel to 75 mg/m2 on day 8, and had it repeated every 3 weeks. RESULTS Gemcitabine/docetaxel combination was well tolerated by the patients with an overall response of 20%. After median follow-up of 15 months, a median overall survival time was 12 months （95% CI 7.042-16.958） and a median progression free survival time was 6 months （95% CI 5.445-6.545）. The most common hematologic toxicity was neutropenia （47.5%） while mucositis was the most common nonhematologic toxicity （45%）. The 1- and 2- year survival rates were 50% and 15%, respectively. CONCLUSION This regimen of gemcitabine/docetaxel combination as second-line treatment for the patients with advanced soft tissue sarcomas is effective with acceptable toxicities. These results should be evaluated in a large phase III trial.

Existence and Life Span of Periodic Solutions for the First Order Quasilinear Hyperbolic Equations

In this paper the authors consider Cauchy problem of first order quasilinear hyperbolic and prove that existence of its periodic solutions and estimates of life span of solutions. This results reveals the relationship of dissipation and smoothness of periodic solutions.

Ammonium affects cell viability to inhibit root growth in Arabidopsis

Ammonium （NH4^＋） is an important form of nitrogen nutrient for most plants, yet is also a stressor for many of them. However, the primary events of NH4^＋ toxicity at the cellular level are still unclear. Here, we showed that NH4^＋ toxicity can induce the root cell death in a temporal pattern which primarily occurs in the cells of root maturation and elongation zones, and then spreads to the ceils in the meristem and root cap. The results from the NH4^＋-hypersensitive mutant hsn1 further confirmed our findings. Taken together,NH4^＋ toxicity inhibits primary root growth by inhibiting cell elongation and division and inducing root cell death.

B cells biology in systemic lupus erythematosus—from bench to bedside

Systemic lupus erythematosus(SLE) is a debilitating autoimmune disease that can involve multi-organs. B cells play a central role in the immunopathogenesis via antibody-dependent and antibody-independent ways. Excessive autoantibodies production, hyperresponsiveness and prolonged survival of autoreactive B cells are characteristics of SLE. In this article, mechanisms of self-tolerance loss of B cells and promising B cell-targeting therapies in lupus are reviewed and discussed.

Survivability Assessment Method of Spacecraft at the Threat of Space Debris

The threat of space debris on spacecraft has increased our attention to the survivability enhancement design of spacecraft. This paper studies the survivability assessment method, which has mainly two parts, namely susceptibility assessment and vulnerability assessment. Our emphasis focuses on how to assess the vulnerability of spacecraft to space debris. The basic vulnerability assessment process includes： （1） the analyses of the threat environment of space debris; （2） the process of identification of critical components of spacecraft, in which a DMECA （damage mode, effects, and criticality analysis） is introduced and an expert system is proposed to get the damage ratio of each component; （3） the spacecraft geometrical description method, in which ＂ shot line scanning method＂ is described to calculate the projected/overlapping area of components and determine the masking/shielding relationship among components; （4） the calculation of spacecraft kill probability and vulnerable area. At last, the authors conclude that the proposed assessment method is systemic and feasible, and it can give a quantitative assessment result of survivability/vulnerability in the spacecraft conceptual design. The theory contained in this paper is useful to develop computerized tool for spacecraft survivability analysis.