Photosynthetic capacity of three common species of macroalgae and the application in coral aquarium

利用水下饱和脉冲调制叶绿素荧光仪(dIVIng-PAM)测定了珊瑚养殖水处理中3种常见大型海藻石莼(ulVA lACTuCA)、条浒苔(EnTErOMOrPHA ClATHrATA)和羽状蕨藻(CAulErPA MEXICAnA)光能转化效率(fV/fM),快速光曲线(rlC)相关参数和非光化学淬灭(nPQ)。结果表明:石莼和条浒苔的fV/fM分别为0.808±0.004和0.816±0.009,显著高于羽状蕨藻。最大相对电子传递速率rETrMAX(17.52±2.92和19.59±4.43μMOl E·M-2·S-1)、半饱和光强Ik(53.41±8.18和59.71±13.52μMOl PHOTOnS·M-2·S-1)也明显高于羽状蕨藻(rETrMAX和Ik分别为13.72±5.41μMOl E·M-2·S-1和32.67±14.06μMOl PHOTOnS·M-2·S-1),表明石莼和条浒苔有着比羽状蕨藻更高的光合能力和对强光的耐受能力,光保护能力更强;羽状蕨藻较高的rlC初始斜率α表明其在弱光下拥有更强的光捕获能力,弱光下光合效率更高;随光照的增强(0~373μMOl PHOTOnS·M-2·S-1),羽状蕨藻nPQ的增幅有限(0~0.2),最大值仅为条浒苔和石莼的38.1%和62.5%,表明这种藻类更容易受到强光的抑制。因此,在珊瑚养殖的水处理中,可以根据不同的光照选择适宜的藻种或藻种组合并根据光梯度进行布局,反之也可以根据藻种来选择合适的光源,以达到最佳的处理效率。This study investigated the difference of photosynthetic capacity in three macroalgae species( Ulva lactuca,Enteromorpha clathrata,and Caulerpa mexicana) commonly used for nutrient removal in coral aquariums.The photochemical efficiency( Fv/Fm),parameters relevant to rapid light curve( RLC) and non-photochemical quenching( NPQ) in the macroalgae were measured by underwater saturation pulse modulated chlorophyll fluorometer( Diving-PAM).The results showed that Fv/Fmwas 0.808 ± 0.004 for U.lactuca and 0.816 ± 0.009 for E.clathrata,which were higher than that for C.mexicana.Higher maximum relative electron transfer rates( rETRmax)( 17.52 ±2.92 and 19.59 ±4.43 μmol e·m- 2·s- 1) and half-starved value of light intensities( Ik)( 53.41 ±8.18 and 59.71 ±13.52 μmol photons·m- 2·s- 1) were observed in U.lactuca and E.clathrata than that in C.mexicana( 13.72 ± 5.41 μmol e·m- 2·s- 1for rETRmaxand 32.67 ± 14.06 μmol photons·m- 2·s- 1for Ik),indicating that U.lactuca and E.clathrata have stronger photosynthetic capacities,photo-protection capacities and tolerance to higher intense light than C.mexicana.A significantly lower RLC initial slope α in C.mexicana implied that this algal species has a higher photosynthetic capacity under weak light condition.With increasing the light intensity( 0- 373 μmol photons·m- 2·s- 1),however,C.mexicana had a limited increase of NPQ( 0- 0.2),the maximum of which was equivalent to 38.1% of that in U.lactuca and 62.5% of that in E.clathrata.These results indicate that the photosynthesis of E.clathrata may be more easily limited by intense light.Our study suggests that the selection of algal species for nutrient removal in a coral aquarium should be adapted to the light intensity.Single species or the combination of different species of macroalgae can be selected according to the illumination of the coral aquarium in order to maximize the efficiency of nutrient removal.国家海洋局第三海洋研究所基本科研业务项目(海三科2011033); 厦门海洋研究开发院共建项目; 海洋公益性行业科研项目(201105012)资

网络环境下电子出版物的分编和管理对策

电子出版物的出现与发展,改变了图书馆馆藏信息资源结构,使得图书馆传统的以纸本文献为主体的编目及管理工作发生深刻变化。文章试从图书馆实际工作出发,对这一变革中出现的新问题进行积极地探讨并提出对策

Function of Apoptosis and Autophagy in Cardiovascular Diseases

细胞凋亡与自噬是普遍存在于各种细胞内的生命现象,广泛参与了机体的生理、病理过程,且二者有着多因子、多通路的相互影响,这种错综复杂的关系贯穿于各种心血管疾病的始终,对多种心血管疾病的发生发展转归起重要作用。现对细胞凋亡与自噬及其相互关系进行梳理,并综述其在心血管疾病中的作用。Apoptosis and autophagy are common life phenomenon in various cells, which widely involve in physiological and pathological processes, and interact with one another by many factors and multiple pathways. This intricate relationship runs through a variety of cardiovascular diseases, and plays an important role in the occurrence, development and prognosis of many cardiovascular diseases. The effects of apoptosis and autophagy and their interrelationship in cardiovascular diseases were reviewed and summarized in this paper.2013年度南京军区医学科技创新课题（编号：MS098

Modeling and Experimentation of Ultra-precision Grinding of Asphercial System

超精密磨削加工已广泛应用于轴对称非球面光学元件及硬脆材料的加工中,加工过程中砂轮的不平衡量和机床主轴引起的砂轮微小振动和摆动将直接影响工件表面质量。本文分析了加工过程中产生的微振动现象,建立磨削中振动引起工件表面轮廓误差的数学模型;设计一套微振动实验系统,建立系统动力学模型并进行实验研究。实验结果表明:优化选择砂轮转速、工件转速和加工进给速度,可有效减小砂轮振动,提高工件表面精度。Ultra-precision grinding is widely used in process on axis-symmetrical aspherical elements and hard-brittle material,the micro vibration and swing evoked by imbanlance of the grinding wheel and principal axis of the machine tools affect the surface quality of the elements directly.Micro vibration phenomena appeared in the processing was analyzed,a mathematic model about the error of elements' surface figure evoked by vibration was built,a experiment system of micro vibration was designed and a dynamics model of the system was built.The result of experiment shows that choosing a reasonable grinding parameter can effectively reduce vibration of the grinding wheel and improve the precision of elements' surface.国家“863”高科技资助项目(8638042416

藏药镰形棘豆的化学成分、药理作用及毒理学研究进展

目的:为进一步研究和开发利用藏药镰形棘豆提供参考。方法:以"镰形棘豆""莪达夏""化学成分""药理作用""毒理学""Oxytropis""Oxytropis falcata""Oxytropis falcata Bunge""Chemical constituents""Chemical composition""Pharmacologic actions""Toxicology"等为关键词,组合查询2010年1月-2016年2月在Pub Med、中国知网、万方、维普等数据库中的相关文献,对镰形棘豆的化学成分、药理作用、毒理学研究及临床应用进行综述。结果与结论:共检索到相关文献81篇,其中有效文献46篇。目前从镰形棘豆中分离鉴定的化学成分主要包括黄酮类、生物碱类、甾体及萜类等化合物,其具有抗炎镇痛、抗脓毒症、抗氧化、防紫外线损伤、抗缺血缺氧性损伤、抗肿瘤、免疫调节、抗纤维化、促凝止血、抑菌、止咳祛痰等广泛的药理作用;毒性研究报道并不多见;镰形棘豆除在藏医中常被用来治疗疫疠、麻风、感冒、便血、骨伤、刀伤等之外,现已有一些以镰形棘豆为主要组成的上市药品和医院制剂应用于临床。今后应加强其药理、药效、作用机制和毒理学研究。原南京军区医学科技创新项目(No.14MS085

Management System of Instruments and Equipment Based on Server Terminal Monitoring

针对高校实验室科研仪器存在的种类繁多、使用人员流动性大、仪器地点分散等情况,设计了一个采用C/S架构的仪器监控管理系统。系统终端采用ArM架构的嵌入式处理器,通过霍尔电流传感器检测其所监控的仪器的电流变化情况,将仪器状态、使用人的卡号以及非法操作的报警照片实时地通过网络发送给服务器,同时应用网络数据库技术设计了实验室监控仪器网上查询列表,实现了可在网页直接地查询当前各个房间的仪器使用情况、任何时间段的使用记录信息和所有时间段的报警记录照片以及实验室仪器的预约。This paper designs an equipment monitoring and control system which is using C / S structure for better management.The terminal system is based on the embedded processor with ARM architecture.The client monitors the electric current by Hall current sensor,then send the state of the instrument,the user's card number and the warning pictures to the server through the network in real time,and use the network database technology to design an online query list for the instruments which are monitored,can visually check the equipments usage in each room,the use record information in any time period and the warning pictures of all time online,can also make an appointment with instruments on the Internet.厦门大学基础创新科研基金本科生项目(CXB2013023);一种非接触、具备学习机制的远程仪器实时监控方法研

福建省和溪南亚热带雨林下木层植物的滴水叶尖和滴水大小

研究福建省南靖县和溪南亚热带雨林下木层植物滴水叶尖的发育情况以及滴水大小．该森林滴水叶尖发育程度中等，离叶尖端３ｍｍ处的叶宽平均为２．３７ｍｍ，粗叶木的最小，为０．９５ｍｍ，瓜馥木的最大，为４．９５ｍｍ．水滴大小平均为０．０４４ｇ，日本五月茶的最小，平均为０．０２３ｇ，瓜馥木的最大，平均为０．０７８ｇ．水滴大小与滴水叶尖宽度存在极显著的正相关（ｐ＜０．００１），滴水叶尖越发达，下落的水滴越小．滴水叶尖的作用首先是迅速、有效地排除叶面上的积水，此外可能与对土壤类型的适应有一定的关系

Management System of Instruments and Equipment Based on Advanced RISC Machines

针对学校等大型科研平台拥有的精密器材种类繁多、安置位置分散、操作流程特异、操作人员流动性大的现象,基于监测的思想设计了此仪器管理系统,旨在督促实验人员按稳妥的使用流程操作仪器,并为器材的更迭维修提供参考。系统分为终端、服务端两部分,终端通过检测电流来判断仪器状态,使用者使用需用有效IC卡辨别身份,终端相应给予声光提示,并且拍照留据。相应的状态情况可以通过网络传输到服务器,例如使用者有效卡号、报警照片等且客户端可以从服务端获取人员信息更新等资料。通过对本工程中心内部分仪器的监管测试表明,较好的提高了操作人员使用素质,提高了仪器管理水平。In college laboratory there are many different kinds of scientific instruments with the problems of high mobility of using personnel,being scattered and so on.This paper designs this management system based on the principle of monitoring,aiming to urge the user to operate the instrument according to proper procedures.The system is divided into client and server two parts.The terminal system discriminates instrument status by detecting current,users need effective IC card,the system corresponding to give sound and light tips,and photos to stay.The corresponding information is sent to the server,such as card number,photo,switch machine time,and the client can access to personnel information updates from the server.福建省科技重大专项(2012Y4011)新型荧光定量侧向流纸条自动化检测仪的研

The Photoluminescence Properties of Self assembled and Nano sized Silicon Quantum Dots

【中文摘要】 用 Si H4 气体的减压 CVD法 ,在氧化硅以及石英基板上自然形成了高密度的 (～ 10 11cm-2 )纳米尺寸的半球状硅晶粒 (硅量子点 ) ,并且对其光学吸收和发光 (Photo- luminescence,PL)特性进行了评价。用表面热氧化了的硅量子点样品 ,在室温条件且在高于 1.2 e V以上的能量范围内观察到了 PL谱。随着量子点尺寸的减少 ,PL谱的光学吸收限移向高能方向。 PL谱的峰值能呈现大幅度的 (约 0 .9e V)斯塔克移动 ,并且 PL谱的强度几乎与温度无关 ,说明发光来自与局域能级相关联的发光和复合过程。 【英文摘要】 Using the low pressure CVD method with SiH 4 gas, we have accumulated the silicon quantum dots in self assembled and nano sized on a silica glass substrate. The optical absorption and photoluminescene spectra have been observed. With decreasing the size of silicon quantum dot, the limit of optical absorption shifts to higher energy. The intensity of photoluminescence spectrum is independent of temperature, which means that the photoluminesce...福建省自然基金资助项