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International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - This paper addresses questions about the socio-legal context and mainstream political theories...  相似文献   

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目的观察心肌中VEGF在死后一定时间的稳定性及表达的变化规律,评价其对死后诊断机体早期心肌缺血的作用。方法用冠状动脉结扎法建立家兔急性心肌缺血模型,应用SP法染色、图像分析和统计学处理系统,检测缺血心肌细胞内VEGF阳性表达面积和强度,并对VEGF在死后不同时间的稳定性进行比较。结果VEGF在缺血心肌组织中,见灶性或成片心肌细胞强阳性表达,部分细胞呈阴性或弱阳性表达,血管内皮及平滑肌细胞表达弱阳性,间质表达阴性;在4℃放置,随时间延长,缺血心肌组织VEGF阳性表达有减弱趋势,至10d时缺血心肌组织仍可见VEGF在少许心肌细胞胞浆内呈弱阳性表达。在4℃放置10d以内,缺血心肌和正常心肌标本之间VEGF阳性表达具有极显著性差异。结论VEGF能耐受一定程度自溶及腐败的影响,其免疫组化检测对于判断死后4℃放置10d以内的尸体是否出现过心肌缺血具有一定意义。  相似文献   

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目的探讨大鼠皮肤切创后E-选择素表达规律及法医学意义。方法健康SD大鼠90只,随机分成4组:正常对照组、活体切创组(30min~7d12个时间点)、死后切创组(30min~3h3个时间点)、死后稳定性组(-20%6h-7d9个时间点,25%6h~3d5个时间点)。在大鼠头部建立皮肤切创模型,按设定的时间点取皮肤检材,运用免疫组化和图像分析技术,检测血管内皮E-选择素的表达规律。结果在活体切创组中,伤后1hE-选择素在血管内皮细胞内即呈阳性表达,持续至伤后7d,且随时间变化呈规律性表达。在正常对照及死后切创组未见阳性表达。死后-20%稳定性组各时间点E-选择素表达与死后即刻比较无显著性差异(P〉0.05)。25%各时间点与死后即刻比较有显著性差异(P〈0.01)。结论E-选择素在创伤后血管内皮细胞内特异性的表达具有时序性规律,且低温条件下稳定性较好。  相似文献   

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刘明 《现代法学》2015,(1):149-161
为促进股权众筹产业的发展,美国《众筹法案》创立了集资门户这一全新的众筹平台类型。相较于注册券商,集资门户的设立门槛较低,但其业务范围受到严格限制,只能从事基础性的信息和交易中介业务,禁止以任何方式参与或影响投融资双方的证券交易。我国股权众筹法律规范应借鉴集资门户这一制度设计,在平衡兼顾各方主体利益的基础上,对众筹平台的经营行为进行规范化管理,尽快结束目前我国众筹网站的无序经营状态。  相似文献   

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Wang HJ  Ruan HG  Huang GZ 《法医学杂志》2001,17(4):198-201, 204
OBJECTIVE: To explore the relationship between the expression change of cytokines and the wound age during the healing process of rats skin wound. METHODS: Immunohistochemical and image-analysis methods were performed on vital skin wounds(after incision 0.5-168 h am) and postmortem damage(after incision 0.5-6 h pm). RESULTS: The expression of the cytokines PDGF-beta, PDGFR-beta, TGF-beta 1, and bFGF in the epithelial cells was already enhanced since 0.5 h am after damage and their strongest expression reaction was seen at 24-96 h am. In addition, the expression of PDGF-beta, PDGFR-beta, TGF-beta 1 and bFGF was also found in the macrophages and the fibroblasts of the granulation tissue, and the expression changes in the postmortem damage group showed that the skin tissue within 0.5-3 h after incision showed immunohistochemical changes but weakly expression and 3 h thereafter no any change was found. CONCLUSION: The expression characteristics of the above mentioned cytokines in wound repair should be related to the wound age and it reminds therefore that they may be used as immunohistochemical criteria for accurate determining the wound age.  相似文献   

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The Self-Appraisal Questionnaire (SAQ) is a 72-item self-report measure designed to predict violent and nonviolent recidivism among adult criminal offenders. The results from using samples from Australia, Canada, England, Singapore, and two samples from the United States (North Carolina and Pennsylvania) indicated that (a) the SAQ has sound psychometric properties, with acceptable reliability and concurrent validity for assessing recidivism and institutional adjustment; (b) there were no significant differences among the scores of the White, African American, Hispanic, and Aboriginal Australian offenders on the SAQ; (c) there were no significant differences among offenders who completed the SAQ for research purposes versus offenders who completed it as part of a decision-making process. Results provided support for the validity of the SAQ to be used with the culturally diverse offenders involved in this research and provided further evidence that contradicts concerns that the SAQ as a self-report measure may be susceptible to lying, and self-presentation biases.  相似文献   

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实验性脑挫伤后caspase-3表达的免疫组织化学研究   总被引:5,自引:3,他引:2  
目的 观察大鼠在不同程度及不同时间脑挫伤后caspase-3表达的变化。方法 对48例实验性脑挫伤大鼠的脑组织进行检验,同时以10例非脑挫伤的脑组织做对照。结果 伤后1h,caspase-3即有表达;24~48h达高峰,2周时仍有阳性细胞存在。阳性细胞多集中于挫伤区及周围带皮质和脑实质内海马区;不同程度脑挫伤组之间于伤后1h,12h,24h,72h,1周和2周caspase-3表达有差异。结论 不同程度脑损伤后caspase-3表达量不同;在脑损伤后caspase-3的表达有时间变化规律,对探讨脑挫伤后二次损害原因和研究脑挫伤程度有一定意义。  相似文献   

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目的研究caspase-9、-3在小鼠皮肤切创愈合过程中的表达及其变化规律。方法在小鼠背部正中制作皮肤全层切创模型,应用免疫组化染色技术观察切创及切创周边区内caspase-9、-3的表达情况,以无切创的小鼠皮肤作为对照。结果对照组中caspase-9、-3表达于表皮层,毛囊及皮脂腺。伤后3h损伤区及损伤周边区中可见少量多核粒细胞表达caspase-9、-3,6~24h,部分浸润的多核粒细胞和单核细胞caspase-9、-3阳性,此后caspase-9、-3阳性细胞逐渐以单核细胞和成纤维细胞为主。伤后caspase-9、-3阳性细胞率逐渐升高并在3d达到高峰,此后逐渐下降,至14d最低。结论caspase-9、-3可能引发正常小鼠皮肤表皮、毛囊和皮脂腺细胞的凋亡并参与正常皮肤细胞的自我更新;在小鼠皮肤切创愈合过程中,caspase-9、-3在多核粒细胞、单核细胞及成纤维细胞中表达,其时序性变化规律可望用于皮肤切创损伤时间的判定。  相似文献   

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目的评估人外周血中FoxO3a mRNA表达的随龄变化规律,为法医学个体年龄推断寻找新的分子指标。方法采集80个健康无关个体血样,按年龄分为8组:≤9岁、10~19岁、20~29岁、30~39岁、40~49岁、50~59岁、60~69岁、≥70岁组,每组10人。提取总RNA后,用实时定量RT-PCR技术检测FoxO3a mRNA的表达水平。结果人外周血FoxO3a mRNA表达随年龄的增长而逐渐增加,具有良好的相关性(r=0.841,P0.01),以年龄分组为自变量,FoxO3a mRNA表达水平为因变量,可得拟合曲线Y=0.001e0.418x。结论人外周血中FoxO3a mRNA表达具有较强的年龄特征,有望成为年龄推断的有用指标之一。  相似文献   

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目的观察原发性脑干损伤(PBSI)致死者脑干神经元凋亡及caspase3的表达情况,探讨其法医学意义。方法选择法医学检案中30例确定为原发性脑干损伤致死者脑干,按伤后不同存活时间(t≤5min、5min〈t≤15min、15min〈t≤1h、1h〈t≤24h)分为4组,以5例非脑干损伤死亡者脑干为对照组;分别运用常规HE、免疫组化和TUNEL染色检测中脑、桥脑及延脑重要核团内神经元凋亡及caspase3的表达情况。结果原发性脑干损伤后15min~24h出现明显神经元细胞凋亡(23.2%~35.9%)和caspase3阳性表达(28%~54%),并呈现随损伤时间进行性增加的趋势,与对照组有显著性差异(P〈0.01)。结论原发性脑干损伤早期即出现神经元凋亡及caspase3表达增加,并随损伤时间的延长呈进行性增加,可据此辅助诊断原发性脑干损伤死亡。  相似文献   

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皮肤切创愈合中caspase-3表达的免疫组化研究   总被引:9,自引:5,他引:4  
目的探讨皮肤切创损伤愈合过程中,caspase-3在损伤区内的表达以及不同损伤时间caspase-3的变化规律。方法应用免疫组织化学技术对33例不同损伤时间小鼠皮肤切创组织中caspase-3的表达进行研究。同时以3例非切创小鼠皮肤组织做对照。结果伤后6h的损伤皮肤组织中可见少量中性粒细胞表达caspase-3,伤后12~24h,大部分浸润的中性粒细胞及部分单核细胞为caspase-3阳性。随伤后时间延长,caspase-3阳性细胞以单核细胞及成纤维细胞为主。伤后0~3h,caspase-3阳性细胞比率较低,为(4.53±6.53)%,12h后逐渐增加,伤后3d达高峰,为(62.66±4.84)%,其后逐渐下降。结论小鼠皮肤损伤愈合过程中,caspase-3可能在诱导损伤区内中性粒细胞、单核巨噬细胞及成纤维细胞发生凋亡过程中发挥重要作用,同时,caspase-3的规律性表达可用于损伤时间的推断。  相似文献   

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大鼠不同程度脑挫伤后caspase-3表达的研究   总被引:2,自引:1,他引:1  
目的阐明不同程度及不同时间脑挫伤后caspase-3表达的变化。方法应用免疫组织化学染色、Westernblot和RT-PCR方法对48例实验性脑挫伤大鼠的脑组织进行了检验,同时以3例非脑挫伤和3例假手术的脑组织做对照。结果伤后1hcaspase-3即有表达,24~48h达高峰,挫伤后14dcaspase-3仍维持较高水平。阳性细胞多集中于挫伤区及周围带皮质和脑实质内海马区,不同程度脑挫伤各组之间阳性细胞面积和灰度存在差异;损伤组caspase-3酶原裂解增加,不同程度脑挫伤各组之间存在一定的差异;损伤组cas鄄pase-3表达量明显高于对照组;不同程度脑挫伤组之间于各个时间段caspase-3mRNA表达未见差异。结论Caspase-3表达增加,可辅助诊断1h~14d的脑挫伤,caspase-3阳性细胞面积和灰度的变化及酶原裂解程度与脑挫伤程度有关。  相似文献   

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人脑挫伤后HSP70和iNOS表达研究   总被引:3,自引:0,他引:3  
目的探讨人脑挫伤后不同时间内HSP70和iNOS表达的变化关系。方法应用免疫组织化学染色观察35例人脑挫伤组织HSP70和iNOS表达的变化规律。结果HSP70阳性细胞在即刻死亡组表达强度最大,伤后急剧下降,至24h达最低,以后逐渐恢复。iNOS阳性细胞表达强度在伤后48h升高至最大,以后逐渐下降,在伤后11d仍有弱表达。结论HSP70和iNOS免疫组化染色可以作为推断人脑挫伤经过时间的有效指标。  相似文献   

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《Federal register》1993,58(119):34058-34059
Section 602 of Public Law 102-585, the "Veterans Health Care Act of 1992," enacted section 340B of the Public Health Service Act, "Limitation on Prices of Drugs Purchased by Covered Entities." Section 340B provides discounts on covered outpatient drugs to eligible entities. Section 340B(a)(5)(A) provides that a drug purchase shall not be subject to both a discount under section 340B and a Medicaid rebate under section 1927 of the Social Security Act. The Department is directed to establish a mechanism to assure that covered entities comply with this prohibition. The purpose of this notice is to announce the final mechanism to prevent duplicate discounts and rebates. The proposed mechanism was announced in the Federal Register at 58 FR 27293 on May 7, 1993. A comment period of 30 days was established to allow public comment on the proposed mechanism. Two comments were received. Both comments concerned issues involving implementation of the mechanism and did not raise substantive issues concerning the mechanism itself; therefore, we will address both comments in the Effective Date section. The mechanism, in its final form, is adopted as proposed.  相似文献   

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《Justice Quarterly》2012,29(2):217-242

The interactionist model of adjustment to prison suggests that inmates have unique characteristics which work as internal determinants of behavior, but do so within the framework of the prison's social environment, which facilitates or impedes satisfaction of needs. Distress occurs at the point of transaction where an individual's adaptive capacity is inadequate to meet internal and/or environmental demands. Past research examined the influence of both individual and environmental characteristics in determining patterns of prison adjustment but failed to investigate the fit between person and environment. Using multiple measures of individual effects, environmental effects, and congruence between person and environment, this study found that all three dimensions are significantly related to how inmates adjust to prison. Implications of these findings for prison administration are discussed.  相似文献   

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《中国法医学杂志》2019,(2):109-112
一直沿用的法医学概念未能反映法医学学科体系特征和本质属性。本文从法医学学科发展战略角度,解析了法医学学科体系,完善了传统法医学概念。法医学的科学技术体系基本架构是:以鉴识科学、基础医学、生物学、法学为理论基础,将理论研究成果及其他相关学科的技术通过应用研究转化为法医检案技术,以生物识别、物理识别、化学识别、关联分析为法医鉴识科学技术体系。基于此,法医学概念的定义应表述为:法医学是研究并解决与法律有关的人身损害、死亡、身份鉴识等问题,为刑事侦查提供线索,为审判提供证据的医学学科。  相似文献   

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