资产关联拓扑结构的信息系统安全评估模型

提出了基于资产关联拓扑结构的信息系统安全评估模型。以资产关联拓扑结构图为原型表示资产间的关联,量化计算判定各资产间关联以及关联性对整个信息系统风险的影响。该信息系统安全评估模型改进了传统的信息系统风险评估方法,添加资产关联性作为评估过程中的重要信息,实现了量化的信息安全评估。最后给出实例验证了模型对传统评估方法的改进。     

基于等级保护的云计算安全防护体系研究

云计算打破了信息系统的边界,使得以边界防护为核心的传统信息安全防护体系不再适用,云安全问题成为制约云计算技术发展的关键因素之一。研究使用蛛网图法与德尔菲法相结合的方式,对云计算信息系统面临的威胁和风险场景进行分析,明确了云计算系统的保护对象;并基于我国信息安全等级保护技术,提出基于保护对象的云安全防护体系框架;进一步根据云计算信息系统特点,采用德尔菲法构建了云安全防护指标体系;同时结合不同等级信息系统安全防护能力要求,对防护指标体系进行了分级。     

信息系统安全保障评估的评估结构与方法

信息系统的安全保障评估已经成为信息安全领域的重要研究内容,基于《信息系统安全保障评估框架》（GB/T 20274,简称SCC）标准完成系统的安全保障评估,能实现评估工作的规范化,提升评估结论的权威性和有效性。在SCC评估框架中引入CAE证据推理模型,得到了SCC的安全保障评估的多级层次结构;提出了基于DS证据理论的信息系统安全保障评估方法,实现了安全保障评估的定量推理。基于该评估方法计算了部分算例,实现了安全保障评估工具,并将DS算法与AHP算法进行了评估推理结论的对比。     

医疗卫生行业信息安全等级保护探讨

介绍医疗卫生行业信息安全等级保护现状以及医疗卫生行业信息系统的分类、特点,提出医疗卫生行业信息安全等级保护工作的内容,包括服务信息化建设、提高对信息安全的认识、推行等级保护制度、进行安全风险评估、加强人才队伍建设等方面,最后提出相关对策。     

基于D-S证据理论的说话人识别方法

提出一种新的说话人识别方法，即将D-S证据理论应用于说话人识别中。该方法通过抽取说话人特征，用D-S证据理论对语音特征矢量的各个分量进行数据融合，重新分配基本概率赋值，并依此得出证据可信度，从而达到识别说话人身份的目的。仿真实验证明使用D-S证据理论对说话人的识别比使用矢量量化有更好的识别效果。     

卫生装备采购风险的评估

本文围绕卫生装备采购的风险问题,在对其进行风险识别的基础上,运用风险管理评估理论,首先对卫生装备的采购风险作了量化估计,进而用模糊风险综合评价法对风险评估的结果作了评价,并通过例子验证了不同采购方案的风险比较方法.     

基于Microsoft威胁建模工具的医疗健康场景下医疗器械网络安全问题分析方法

目的 模拟构建医疗健康场景,针对医疗器械设备及整个场景存在的威胁制定检测方法和评分标准,为医疗健康场景下医疗器械网络安全问题提供解决思路。方法 根据医疗健康场景的特殊性,对模拟的医疗健康场景进行分析并构建出数据流图,运用Microsoft威胁建模工具根据STRIDE模型生成漏洞列表,对其中的漏洞和风险进行分析,制定针对医疗器械场景特殊性的评分标准和渗透测试方法,提出解决办法并进行风险降级。结果 根据场景的数据流图生成漏洞列表,共66个威胁,包含15个S（假冒）、3个T（篡改）、10个R（否认）、4个I（信息泄露）、14个D（拒绝服务）和20个E（权限提升）。对以上威胁进行分类并分析原因,提出解决办法缓解威胁并进行风险降级。结论 通过Microsoft威胁建模工具对医疗健康场景下医疗器械网络安全进行分析,可以科学有效地分析出场景下可能遇到的网络安全问题,在一定程度上避免或预防由网络安全问题带来的后果及影响。     

掌上医院平台信息安全风险分析与控制

基于移动互联网掌上医院平台的建设概况,从移动客户端、无线通信及业务平台等层面分析其信息安全风险。结合国家信息安全等级保护要求,提出应用移动虚拟隔离技术及各安全加密协议保障智能终端和移动通信的安全; 通过合理的业务逻辑设计以及单点登录平台来完成用户身份认证; 根据掌上医院业务各组成模块的不同功能和网络位置,将其划分不同安全区域并进行个性化安全防护设计,结合安全管理措施,构建其安全防护体系。     

网络环境下数字图书馆的网络安全及安全体系的构建

阐述了网络安全的基本含义及影响数字图书馆网络安全的因素;提出了网络信息安全的分层理论,研究了网络安全策略的制定原则及实现的技术方法;从原则、技术和管理等方面对构建图书馆网络系统的安全体系作了初步论述.     

论区域卫生信息网络体系建设的国家安全问题

随着信息技术的飞速发展,信息网络已经成为社会各个领域不可或缺的基础设施,成为衡量一个国家现代化程度和综合国力的重要标志.然而,在信息技术发展和广泛应用,并给世界各国带来重大发展机遇的同时,也给国家安全带来了新的威胁与挑战-国家信息安全问题日渐突出.国家信息安全得不到保障,信息网络也成为了敌对国家、势力获取我国信息,渗透影响国家政治、经济、文化、军事,破坏国家安全的重要手段.由此可见,在信息技术广泛渗透于各个领域的条件下,网络信息安全已经在国家安全中占有十分重要的战略地位,成为国家安全的重要基石.将围绕当前区域卫生信息网络体系建设中可能涉及的国家安全问题进行讨论.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.