Environmental Science and Pollution Research - The microbial fuel cell (MFC) system is a promising environmental remediation technology due to its simple compact design, low cost, and renewable... 相似文献
生物完整性指数(Index of biotic integrity,IBI)被广泛运用于河流的健康评价.然而,随着人类活动对河流影响的增加,传统指示生物多样性的损失降低了评价的准确性.在高度受影响的水体环境中,微生物群落被证明是更敏感的生态健康指标.本研究采用Illumina高通量测序技术,于2018年冬季和2019年春季对无锡市境内8条河流的微生物群落组成进行了分析,从群落组成/相对丰度、丰富度/多样性、敏感性/耐受性3个角度确定了候选指标.并对传统的核心指标筛选方法进行了改进,通过差异性分析、箱线图检验、Speraman相关性分析,建立了冬、春两季的微生物生物完整性指标框架.评价结果表明,M-IBI能有效区分不同程度的受损位点,且与水质状况和物理生境存在显著的相关性.总体而言,M-IBI为城市河流生态状况提供了一种新的评价工具. 相似文献
This study aims to explore the factors that affect consumers’ behavior in adaptation and use of internet-based services (IBS) during the COVID-19 crisis. In this study, technology acceptance model (TAM) was applied to predict the behavioral intention of active social media users among the Pakistan population based on the revised model of the TAM model. And the data of external factors facilitating conditions (FC), social impact (SI), and task technology fit (TTF) were collected from active social media users of Pakistan by using structured questionnaires. After performing Pearson’s correlation and linear regression on the collected data, findings have shown that the outcome variable, i.e., behavioral intention, exhibited significant correlation with all variables except for perceived ease of use (PEoU). Further analysis revealed mixed results wherein FC and TTF can make a significant influence on perceived usefulness (PU) and PEoU, respectively. In addition, PU can significantly affect attitude (ATT) towards the use of IBS while the use of IBS has been affected by behavioral INT during the outbreak of COVID-19 in Pakistan.