Results 61 to 70 of about 59,300 (233)
Correlations between IGF-IR Expression and Clinicopathological Factors and Prognosis in Patients with Lung Adenocarcinoma [PDF]
, 2010 Background and objective The incidence of lung adenocarcinoma increases rapidly, and IGF-IR is the key mediator of several growth factors signal transduction, therefore it plays an important role in the proliferation and differentiation of cancer cell ...
Baohui HAN +4 more
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Conservation Biology, EarlyView.Abstract Despite the crucial role of human impacts on biodiversity loss, many assessments of this loss focus on single metrics, such as species richness, and overlook the multidimensional effects of human activities. Because of its importance to ecosystem functioning, we investigated the functional diversity of medium‐ and large‐sized mammal ...
Xueyou Li +8 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2016 自1983年Isaacson和Wright首次提出黏膜相关淋巴组织结外边缘带B细胞淋巴瘤（MALTL）[1]的概念以来,国内外陆续报道了各器官的MALT淋巴瘤,肺黏膜相关性淋巴瘤较为罕见。本文结合1例肺黏膜相关性淋巴瘤病例资料,及对相关文献的回顾,以提高对肺黏膜相关性淋巴瘤的认识。1病例报告患者女性,20岁。体检胸片发现"肺部阴影 ...
郭明珠, 靳蓉晖, 米东辉
doaj
Research of Sensor Network Data Processing Based on Compressive Sensing [PDF]
, 2015 集成电路的发展使传感器节点拥有感知、处理和通信的功能，这使得无线传感网络得以快速发展并且广泛应用于远程环境监测、目标跟踪等领域。但无线传感网络的发展受到了能量和环境的制约，因此以节省能耗为目的通过消除数据冗余获得高效的数据采集压缩方案是无线传感网络重要的研究目标。考虑到上述传感网络的特殊性，找到传感网络的数据压缩方法以减少存储和通信压力是十分必要的，这一直是人们研究的重点难题。压缩感知的出现为无线传感网络数据收集提供了一种创新性的数据收集方案，突破了传统信号处理中奈奎斯特采样定理的限制 ...
黄梅
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Using incentive payments to promote human–carnivore coexistence
Conservation Biology, EarlyView.Abstract For many large carnivores, minimizing the financial burden they impose on local people is critical to their conservation. Incentive‐based programs that provide people with financial benefits for taking pro‐conservation actions or achieving conservation goals are a promising tool for promoting human–carnivore coexistence. Although the number of
Adam Pekor +9 more
wiley +1 more source
Shuitu Baochi Xuebao, 1994 该文通过对海堤林带树木根系及土壤抗冲，抗蚀和渗透性的测定分析，发现同一地段土壤的抗冲，抗蚀指数表土层大于底土层。树木根系，尤其是根径≤２ｍｍ的细根有较强的固特土壤功能，抗冲指数与根长，根量间有明显的相关性，单相关系数分别为０．９３２６和０．８２５６。吸机质含量高的土壤抗蚀性强，抗蚀指数大，与有机含量间的相关系为０．８９３１，与细根的根长和根量的相关性相对较低，单相关系数分别为０．８２１６和０ ...
张金池 康立新
doaj +2 more sources
鄂尔多斯盆地姬塬地区长6 储层矿物含量与孔隙度的线性关系 [PDF]
, 2019 矿物含量是影响储层物性的重要因素之一。为了较全面地分析不同类型矿物含量对储层孔隙度的影响，以鄂尔多斯盆地姬塬地区长6 砂岩储层为例，探索性地运用多元逐步线性回归法分析了石英含量（x1）、长石含量（x2）、岩屑含量（x3）、绿泥石含量（x4）、伊利石含量（x5）、高岭石含量（x6）、硅质含量（x7）以及铁方解石含量（x8）与孔隙度（y）的关系，建立了矿物含量（xi）与孔隙度（y）之间的回归模型：y = 21.131-0.086 x2-0.113 x3-0.554 x4-0.370 x5-0.199 x6 ...
李小燕
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Conservation Biology, EarlyView.Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta +24 more
wiley +1 more source
An empirical examination on the changes of correlations between Chinese listed banks due to a financial crisis-based on a VAR-DCC-GARCH model [PDF]
, 2016 在因金融风险传染而造成的相关性变动问题上，目前绝大多数文献的研究对象均只覆盖至不同国家或地区的股票市场以及非银行上市公司，而鲜有涉及到一国国内各银行主体；而在关于银行间风险溢出的相关文献中，学者们则普遍采用分位数回归法计算条件风险价值(CoVaR)而度量银行两两之间的股市风险非线性溢出效应及单个银行的系统性风险贡献度，但却并未关注到因金融风险传染而在均值溢出层面导致的银行间相关性变动及在方差溢出层面导致的银行间动态相关系数的变化。鉴于此 ...
李郭依
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Conservation Biology, EarlyView.Abstract Constructed value of information (CVoI) is an expert elicitation decision‐analytic tool used to prioritize sources of uncertainty based on their potential to improve decision outcomes if resolved. Despite increased application of CVoI, the robustness of CVoI prioritization of sources of uncertainty relative to differences in expert elicitation
Kristin P. Davis +7 more
wiley +1 more source