Social zapping has gained popularity as a term that refers to canceling plans or appointments at the last minute to attend other,supposedly more appealing events.This behavior resembles rapidly switching channels on a...Social zapping has gained popularity as a term that refers to canceling plans or appointments at the last minute to attend other,supposedly more appealing events.This behavior resembles rapidly switching channels on a television,as individuals frequently jump between different social engagements.The present study examined potential behavioral trait predictors of social zapping,such as belongingness,self-esteem,sense of control,and meaningful existence among community residents ranging from 40 to 75 years of age(n=48).The study utilized simple linear regressions to identify potential predictors of social zapping,exploring how the four fundamental needs(belongingness,self-esteem,sense of control,and meaningful existence)might be linked.Results indicated that belongingness and self-esteem are significant predictors of social zapping tendencies.Additionally,an independent samples t-test was conducted to determine the relationship both older and younger adults have with the four fundamental needs as well as the role age plays in social zapping tendencies.Older adults exhibited a significant and more positive association with self-esteem,sense of control,and meaningful existence compared to individuals aged 39 and younger.Social zapping frequency was nonsignificant for both older adults and younger adults.Furthermore,a separate set of linear regression analyses were completed to determine how social desirability affects social zapping across age groups.Social desirability significantly predicted both self-esteem and meaningful existence.Overall,the present study builds on what is currently a new phenomenon in research and will provide new information on the relationship between age,social zapping,and behavioral traits.展开更多
目的探索间变性胶质细胞瘤中有预后价值的免疫浸润相关基因。方法下载TCGA(The Cancer Genome Atlas)数据库中转录组数据,量化间变性胶质细胞瘤样本的免疫浸润情况,并分为低、中、高免疫浸润组,进而对组间的差异基因进行分析,筛选出预...目的探索间变性胶质细胞瘤中有预后价值的免疫浸润相关基因。方法下载TCGA(The Cancer Genome Atlas)数据库中转录组数据,量化间变性胶质细胞瘤样本的免疫浸润情况,并分为低、中、高免疫浸润组,进而对组间的差异基因进行分析,筛选出预后相关的核心基因ZAP70。研究ZAP70表达量与间变性胶质细胞瘤患者生存时间以及临床特征的关系,利用免疫组织化学染色验证ZAP70在临床间变性胶质细胞瘤样本中的表达量与患者预后的关系。通过GSEA(Gene Set Enrichment Analysis)富集分析了解ZAP70在间变性胶质细胞瘤中的相关功能通路。结果TCGA数据库中236例间变性胶质细胞瘤样本被分为低、中、高3个免疫浸润组,低免疫浸润组的预后最佳,中免疫浸润组次之,高免疫浸润组的预后最差。差异分析与单因素Cox回归分析筛选出ZAP70为间变性胶质细胞瘤免疫浸润相关的核心基因。K-M生存曲线显示,ZAP70高表达间变性胶质细胞瘤患者生存时间显著少于ZAP70低表达患者(P<0.05)。高表达ZAP70与多种不良的临床特征相关。61例临床间变性胶质细胞瘤样本的免疫组化染色分析验证了高表达ZAP70预后不佳的趋势。GSEA富集分析结果显示高表达ZAP70与耐药、细胞粘附、细胞外基质反应及恶性通路激活相关。在肿瘤免疫方面,ZAP70与白细胞迁移及固有免疫缺失相关。结论ZAP70有望成为间变性胶质细胞瘤患者中预后不佳亚群的诊断标记物及有效治疗靶点。展开更多
ZPARM中包含了DB2 for z／OS运行时参数。DB2系统管理员在安装和维护DB2系统时经常遇到涉及ZPARM的相关问题。本文从以下几个方面对相关问题和方法进行了介绍和探讨：查看和变更当前DB2子系统ZPARM设置的方法：ZPARM的在线变更和生效时...ZPARM中包含了DB2 for z／OS运行时参数。DB2系统管理员在安装和维护DB2系统时经常遇到涉及ZPARM的相关问题。本文从以下几个方面对相关问题和方法进行了介绍和探讨：查看和变更当前DB2子系统ZPARM设置的方法：ZPARM的在线变更和生效时间问题；ZPARM设置对DB2应用的影响；ZPARM相关数据集和命令的权限设定。展开更多
Objective To explore specific gene expression for regulating meiosis of germ cells during spermatogenesis of rat testis Materials & Methods Male SD rats, aged 1, 3 and 8 weeks, were observed in this study. The ...Objective To explore specific gene expression for regulating meiosis of germ cells during spermatogenesis of rat testis Materials & Methods Male SD rats, aged 1, 3 and 8 weeks, were observed in this study. The methods of morphological observation on testicular tissues embedded by resin and mRNA differential display (DDRT PCR) were combined to obtain specific mRNA expression gene fragments during the testicular development. Reverse dot blot hybridization was operated to further screen the positive differential DNA fragments. The positive DNA segments were sub cloned in pGEM T Easy vector and transformed into the competent E coli 109 straint. Northern blot analysis and in situ hybridization were also carried out for identifying tissue specific expression as well as cell specific expression DNA fragments. To screen λ ZAP II rat testicular gene library was searched for the original gene. Results Eighty two differential cDNA fragments were obtained through primary DDRT PCR, among which 40 differential cDNA fragments were selected for further screening with reverse dot blot hybridization. After the reverse dot blot hybridization, 12 primary differential DNA fragments were obtained. The size of DNA fragments ranged from 250 to 500 bp. The in situ hybridization of the testicular tissue showed that a specific DNA fragment derived from 8 week old rat testis, named CG14, was hybridized in adult rat testicular section, in which the positive nucleic acid signals were distributed specifically in the primary spermatocytes. Another DNA fragment derived from 1 week old rat testis, named AA11, was hybridized specifically in Sertoli cell of 1 week old rat testis. Northern blot hybridization with [α 32 P] dCTP labeled CG14 probe, including cardiac, liver, kidney, brain, testis, and epididymis tissue mRNAs of rat, showed that an mRNA specific hybridization band, size of 1.258 kb, was found in testis tissue and size of 1.531 kb of another hybridization band present in epididymis tissue. The CG14 DNA specific gene fragment existed in the λ ZAP II testis gene library. Conclusion 1. The DDRT PCR technique is a convenient tool to find the specific expression gene during spermatogenesis. 2. The CG14 DNA fragment was expressed significantly in rat testicular tissue, weakly expressed in the epididymis tissue of rat, but not found in cardiac, liver, kidney, and brain tissues. 3. The CG14 DNA fragment was specifically expressed in the primary spermatocytes and might be associated with the meiosis of the primary spermatocyte during spermatogenesis of rat. 4. The CG14 DNA fragment existed in the λ ZAP II testis gene library.展开更多
文摘Social zapping has gained popularity as a term that refers to canceling plans or appointments at the last minute to attend other,supposedly more appealing events.This behavior resembles rapidly switching channels on a television,as individuals frequently jump between different social engagements.The present study examined potential behavioral trait predictors of social zapping,such as belongingness,self-esteem,sense of control,and meaningful existence among community residents ranging from 40 to 75 years of age(n=48).The study utilized simple linear regressions to identify potential predictors of social zapping,exploring how the four fundamental needs(belongingness,self-esteem,sense of control,and meaningful existence)might be linked.Results indicated that belongingness and self-esteem are significant predictors of social zapping tendencies.Additionally,an independent samples t-test was conducted to determine the relationship both older and younger adults have with the four fundamental needs as well as the role age plays in social zapping tendencies.Older adults exhibited a significant and more positive association with self-esteem,sense of control,and meaningful existence compared to individuals aged 39 and younger.Social zapping frequency was nonsignificant for both older adults and younger adults.Furthermore,a separate set of linear regression analyses were completed to determine how social desirability affects social zapping across age groups.Social desirability significantly predicted both self-esteem and meaningful existence.Overall,the present study builds on what is currently a new phenomenon in research and will provide new information on the relationship between age,social zapping,and behavioral traits.
文摘目的探索间变性胶质细胞瘤中有预后价值的免疫浸润相关基因。方法下载TCGA(The Cancer Genome Atlas)数据库中转录组数据,量化间变性胶质细胞瘤样本的免疫浸润情况,并分为低、中、高免疫浸润组,进而对组间的差异基因进行分析,筛选出预后相关的核心基因ZAP70。研究ZAP70表达量与间变性胶质细胞瘤患者生存时间以及临床特征的关系,利用免疫组织化学染色验证ZAP70在临床间变性胶质细胞瘤样本中的表达量与患者预后的关系。通过GSEA(Gene Set Enrichment Analysis)富集分析了解ZAP70在间变性胶质细胞瘤中的相关功能通路。结果TCGA数据库中236例间变性胶质细胞瘤样本被分为低、中、高3个免疫浸润组,低免疫浸润组的预后最佳,中免疫浸润组次之,高免疫浸润组的预后最差。差异分析与单因素Cox回归分析筛选出ZAP70为间变性胶质细胞瘤免疫浸润相关的核心基因。K-M生存曲线显示,ZAP70高表达间变性胶质细胞瘤患者生存时间显著少于ZAP70低表达患者(P<0.05)。高表达ZAP70与多种不良的临床特征相关。61例临床间变性胶质细胞瘤样本的免疫组化染色分析验证了高表达ZAP70预后不佳的趋势。GSEA富集分析结果显示高表达ZAP70与耐药、细胞粘附、细胞外基质反应及恶性通路激活相关。在肿瘤免疫方面,ZAP70与白细胞迁移及固有免疫缺失相关。结论ZAP70有望成为间变性胶质细胞瘤患者中预后不佳亚群的诊断标记物及有效治疗靶点。
文摘ZPARM中包含了DB2 for z／OS运行时参数。DB2系统管理员在安装和维护DB2系统时经常遇到涉及ZPARM的相关问题。本文从以下几个方面对相关问题和方法进行了介绍和探讨：查看和变更当前DB2子系统ZPARM设置的方法：ZPARM的在线变更和生效时间问题；ZPARM设置对DB2应用的影响；ZPARM相关数据集和命令的权限设定。
文摘Objective To explore specific gene expression for regulating meiosis of germ cells during spermatogenesis of rat testis Materials & Methods Male SD rats, aged 1, 3 and 8 weeks, were observed in this study. The methods of morphological observation on testicular tissues embedded by resin and mRNA differential display (DDRT PCR) were combined to obtain specific mRNA expression gene fragments during the testicular development. Reverse dot blot hybridization was operated to further screen the positive differential DNA fragments. The positive DNA segments were sub cloned in pGEM T Easy vector and transformed into the competent E coli 109 straint. Northern blot analysis and in situ hybridization were also carried out for identifying tissue specific expression as well as cell specific expression DNA fragments. To screen λ ZAP II rat testicular gene library was searched for the original gene. Results Eighty two differential cDNA fragments were obtained through primary DDRT PCR, among which 40 differential cDNA fragments were selected for further screening with reverse dot blot hybridization. After the reverse dot blot hybridization, 12 primary differential DNA fragments were obtained. The size of DNA fragments ranged from 250 to 500 bp. The in situ hybridization of the testicular tissue showed that a specific DNA fragment derived from 8 week old rat testis, named CG14, was hybridized in adult rat testicular section, in which the positive nucleic acid signals were distributed specifically in the primary spermatocytes. Another DNA fragment derived from 1 week old rat testis, named AA11, was hybridized specifically in Sertoli cell of 1 week old rat testis. Northern blot hybridization with [α 32 P] dCTP labeled CG14 probe, including cardiac, liver, kidney, brain, testis, and epididymis tissue mRNAs of rat, showed that an mRNA specific hybridization band, size of 1.258 kb, was found in testis tissue and size of 1.531 kb of another hybridization band present in epididymis tissue. The CG14 DNA specific gene fragment existed in the λ ZAP II testis gene library. Conclusion 1. The DDRT PCR technique is a convenient tool to find the specific expression gene during spermatogenesis. 2. The CG14 DNA fragment was expressed significantly in rat testicular tissue, weakly expressed in the epididymis tissue of rat, but not found in cardiac, liver, kidney, and brain tissues. 3. The CG14 DNA fragment was specifically expressed in the primary spermatocytes and might be associated with the meiosis of the primary spermatocyte during spermatogenesis of rat. 4. The CG14 DNA fragment existed in the λ ZAP II testis gene library.
