和谐社会建设背景下的红十字会功能定位——基于X市红十字会调查的思考

构建和谐社会为我国红十字会发展带来了前所未有的机遇与挑战。问题的关键在于红十字会能否根据和谐社会建设的需要进行角色调适,使功能定位更加准确合理。基于X市红十字会的调查,我们发现红十字会在服务功能上存在“大而全“、在传播功能上存在“散而浅“的问题,这淡化了红十字会的组织特色,并衍生出专业化水平不高以及社会认知度不够等问题。因此,在构建和谐社会背景下,红十字会需要进一步转变发展思路,从“大而全“走向“专而精“,充分发挥组织优势,打造核心竞争力,以获得可持续发展。厦门大学“211工程”三期建设项目“公共管理与公共政策”成果;得到X市红十字会资

Preparation,characterization,and application of monoclonal antibodies against human decoy receptor 3

目的制备抗DcR3单克隆抗体(mAb),鉴定其生物学特性,并应用于ELISA、Western blot、Flowcytometry(FCM)检测。方法以纯化的可溶性DcR3(sDcR3)免疫Balb/c小鼠,采用杂交瘤技术制备抗DcR3 mAb。用Ig亚类ELISA试剂盒鉴定抗DcR3mAb的亚类。用ELISA方法测定抗DcR3 mAb与sDcR3结合的特性,SDS-PAGE鉴定抗DcR3 mAb与SW480细胞上清中DcR3结合的特性,以鉴定mAb的特性。用间接ELISA法检测腹水mAb的效价、亲和常数并进行表位分析。Western blot检测mAb的特异性及应用,并用所获抗DcR3单克隆抗体(mAb)通过流式细胞仪检测肿瘤细胞表面DcR3的表达水平。结果获得4株可分泌DcR3 mAb的杂交瘤细胞系ZZ-393、ZZ-394、ZZ-151和ZZ-268。其中DcR3 mAb ZZ-268(下文简称为ZZ-268)的Ig亚类为IgG1(κ型);腹水效价为1×10-5;亲和常数为1.28×109水平;ZZ-268和ZZ-151可识别与其他2种抗体不同的抗原表位;Western blot证实,获得的ZZ-268... 【英文摘要】 Objective To prepare monoclonal antibodies mAb against DcR3,characterize their biological properties and apply them to ELISA,Flow cytometry,and Western blot detection.Methods Balb/c mice were immunized with soluble DcR3(sDcR3) for preparing mAb by using hybridoma technique.Ig subclass and specificity of mAbs were analyzed by ELISA and SDS-PAGE,respectively.The titres,relative affinity,and epitopes of mAbs in ascitic fluid were determined by indirect ELISA.The specificity and application of mAb were detected...厦门大学科研启动资金(Z03103);; 厦门市科技计划项目(3502Z20083008)资

气象要素空间化方法精度的比较研究——以平均气温为例

以国家气象局1971年~2000年30年整编资料中的东北、华中地区1978年、1984年、1990年、1996年4年的1月份、7月份及年平均气温数据为数据源,采用直接插值法(反距离权重法和普通克里格法)、趋势面模拟+残差内插法、空间化气候值+年际距平空间插值方法、空间化气候值+年际距平趋势面模拟+残差内插等4种方法,进行了空间化精度的比较研究。通过平均绝对误差(MAE)、平均相对误差(MRE)以及交叉验证等几种评估标准的比较,认定在具有30年月平均气温栅格数据库作为背景的前提下,采用空间化气候值+年际距平值IDW内插的方法在东北、华中两个地区空间化的误差相对较小,并且其操作方便,是一种对平均气温这一要素的短时间序列空间化而言既方便,插值效果又相对较好的空间化方法

野外斜坡地表入渗性能与渗透系数测量方法与装置

本发明公开了一种野外斜坡地表入渗性能与渗透系数测量方法，它采用了一种野外斜坡地表双环入渗仪，该装置包括一个用于压入野地斜坡地表土中的同心双环结构的斜坡入渗环（3）和一个用于使斜坡入渗环（3）的内环和外环中的降雨量自适应等于饱和无积水入渗量的同样是同心双环结构的降雨筒（2）以及两个用于向降雨筒（2）的双环中供水的马里奥特水箱（1）。本发明的测量方法是通过实现斜坡地表（含水平地表）的饱和润湿无积水入渗及其降雨量的量测，获得土层表面零压力饱和入渗-时间关系，来获得土层表面的降雨入渗性能和饱和渗透系数

一种野外斜坡地表双环入渗仪

本实用新型公开了一种野外斜坡地表双环入渗仪，它包括一个用于压入野地斜坡地表土中的同心双环结构的斜坡入渗环（3）和一个用于使斜坡入渗环（3）的内环和外环中的降雨量自适应等于饱和无积水入渗量的同样是同心双环结构的降雨筒（2）以及两个用于向降雨筒（2）的双环中供水的马里奥特水箱（1）。本实用新型的测量方法是通过实现斜坡地表（含水平地表）的饱和润湿无积水入渗及其降雨量的量测，获得土层表面零压力饱和入渗-时间关系，来获得土层表面的降雨入渗性能和饱和渗透系数

1995～2011年CERN土壤环境元素含量数据集

土壤环境是地球环境的重要组成部分。目前土壤环境问题的关注重点在于土壤污染。我国土壤污染以无机污染为主。中国生态系统研究网络(Chinese Ecosystem Research Network,CERN)自1988年组建以来,在中国主要农田、森林、草原、荒漠、湿地生态系统中,按统一的规范,对与土壤环境状况有关的铁、锰、铜、锌、硼、钼、镉、铬、铅、镍、汞、砷、硒元素进行了长期定位监测。通过对CERN典型生态样地表层土壤环境元素监测数据进行加工处理,获得1995～2011年中国陆地生态系统土壤环境元素含量数据集。本数据集中13种土壤环境元素指标测定的相对误差平均为6.55%,重复测定的相对偏差为7.70%。同时附有完整的背景信息,保证了数据在空间和时间上的一致性。本数据集可以为全国和区域土壤环境质量评估、土壤污染风险评价以及环境土壤学研究等工作提供数据基础

Prediction of Energy Resolution in the JUNO Experiment

International audienceThis paper presents the energy resolution study in the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3% at 1 MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components of the JUNO detector. Various factors affecting the detection of inverse beta decay signals have an impact on the energy resolution, extending beyond the statistical fluctuations of the detected number of photons, such as the properties of liquid scintillator, performance of photomultiplier tubes, and the energy reconstruction algorithm. To account for these effects, a full JUNO simulation and reconstruction approach is employed. This enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy resolution. The study reveals an energy resolution of 2.95% at 1 MeV. Furthermore, the study assesses the contribution of major effects to the overall energy resolution budget. This analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data taking. Moreover, it provides a guideline in comprehending the energy resolution characteristics of liquid scintillator-based detectors

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies