我国独角兽企业回归A股对国内证券市场的影响

本文首先概括了在当下经济浪潮中,独角兽企业在证券市场上的发展态势;其次剖析了独角兽企业回归本土市场强烈意愿背后的动因,进而又分析了独角兽企业回归A股给市场带来的影响;最后针对其不良影响作出相应的策略构思

从“红鞋底”案看位置商标在中国之未来

作为一种新型商标,位置商标特殊之处在于其使用的限定位置。关于位置商标是否符合商标的构成要素、具有可注册性,系殊有争议的问题。在位置商标注册申请中,商标审查及审理机关易将位置商标的标志认定错误,主要原因是对确定商标标志的依据以及商标图样中是否可以包含除标志以外的其他部分存在不同理解,\"红鞋底\"商标案就鲜明地体现了这些问题。作为单一颜色位置商标,\"红鞋底\"商标在日后的审查中仍将面临单一颜色商标、实用功能性和美学功能性等难关,直接关涉其命运。中央高校基本科研业务费专项资金资助“人工智能等新技术对知识产权制度之挑战及其应对”(厦门大学2018年立项,编号20720181098

Medication rules in the treatment of digestive system neoplasms of WANG Yan-hui

目的:基于中医传承辅助平台软件,分析王彦晖教授治疗消化系统肿瘤的用药规律。方法:收集并筛选王教授于厦门燕来福国医堂治疗消化系统肿瘤病案,录入中医; 传承辅助平台软件,运用软件集成的数据分析方法,分析王教授治疗消化系统肿瘤的用药规律。结果:筛选出治疗消化系统肿瘤处方672首,分析得出其治疗消化; 系统肿瘤常用药物包括茯苓、陈皮、姜半夏、莪术、三棱、党参、白术、龙骨、牡蛎等,并演化出4首治疗消化系统肿瘤的新处方。结论:王教授治疗消化系统肿瘤; 以益气健脾、理气化痰、祛瘀散结为基本大法,扶正祛邪并重,同时根据闽南地区脾虚湿盛的致病特点重视健脾袪湿治法,并兼顾安神、止痛等治法以综合调理患者; 的机体状态。Objective: To study the medication rules in the treatment of digestive; system neoplasms of professor WANG Yan-hui using the traditional Chinese; medicine inheritance support system software (TCMISS, V2.5). Methods:; The prescriptions used by professor WANG Yan-hui in treating digestive; system neoplasms at the Yan-Lai-Fu Chinese Medicine Clinic were; collected as input data into TCMISS and were analyzed by software; integration method. Results: Totally of 672 prescriptions were selected; according to the collection standard in digestive system neoplasms; treatment. It was found that the most frequently used Chinese medicine; in these prescriptions including Tuckahoe, Pericarpium Citri; Reticulatae, Pinellia Tuber, Rhioxma Curcumae Aeruginosae, Rhizome of; Common Burreed, Root of Pilose Asiabell, Rhizome of Largehead; Atractylodes, Fossilizid, Oyster Shell, and so on. Furthermore, four new; prescriptions for treating digestive system neoplasms were created.; Conclusion: The core rules of professor WANG Yan-hui in treating; digestive system neoplasms were invigorating spleen and replenishing qi,; regulating qi-flowing for eliminating phlegm and dispelling stasis and; resolving hard mass, which means that strengthening vital qi and; eliminating pathogenic factor are equally emphasized in his; prescriptions. Besides, taking into consideration the climate; characteristics of the southern Fujian, professor WANG Yan-hui attaches; importance to invigorating spleen for eliminating dampness, combining; with tranquillization and relieving pain to treating patients; comprehensively.国家自然科学基金项目; 教育部新世纪优秀人才支持计划; 福建省自然科学基金项目; 厦门市科技计划项

北方农牧交错带赖草草地土壤氮矿化对不同放牧强度的响应

北方农牧交错带的草地是我国重要的畜牧业基地,但长期不合理的放牧使其土壤氮素的供应能力发生变化,草地生态和生产功能受到影响。因此,为探究不同放牧强度对土壤氮矿化的影响,本试验于2016年设置4个放牧强度,分别为不放牧(No Grazing,NG)、轻度放牧(2.35 Sheep Unit (SU) hm~(-2)·生长季;Light Grazing,LG)、中度放牧(4.80 SU hm~(-2)·生长季;Medium Grazing,MG)和重度放牧(7.35 SU hm~(-2)·生长季;Heavy Grazing,HG),分别在2017年和2018年采用顶盖埋管培养法测定土壤净氮矿化速率。结果表明:不同放牧强度对土壤无机氮含量有显著影响(P<0.05),生长季不同月份土壤无机氮含量存在极显著差异(P<0.01);重度放牧的净氮矿化速率最大,轻度放牧最低;放牧主要通过影响土壤温度和水分的变化进而影响土壤净氮矿化速率。可见,短期内重度放牧会使土壤无机氮累积,提高植被可利用氮含量,显著提高土壤的净氮矿化速率,但造成地上生物量减少,地表裸露,草地有退化的风险,因此,为更好地维持北方农牧交错带草地生态系统的稳定,还需进行长期的试验监测来确定适宜的放牧强度

盐碱化草地生态系统土壤呼吸对不同氮添加水平的短期响应

为了探讨氮沉降对北方农牧交错带盐碱化草地生态系统土壤呼吸(Rs)的影响,于2017年4月在我国北方农牧交错带(山西省右玉县)盐碱化草地生态系统设置8个不同水平氮添加处理实验(0、1、2、4、8、16、24和32 g N/m~2/y),2017～2018年生长季(5～9月)测定了土壤呼吸的季节变化并分析了土壤呼吸与环境因子的关系。结果表明:(1)土壤呼吸的季节变化呈先升高后降低的趋势,峰值出现在6月底7月初;(2)2017年N_8处理下土壤呼吸平均速率显著高于其他处理(P<0.05),2018年N_8和N_(24)处理的土壤呼吸速率均显著高于对照和N_2处理(P<0.05),其余处理间差异不显著;(3)不同水平氮添加处理下,呼吸速率更多的受土壤温度的影响,土壤含水量次之。因此,在未来全球增温背景下的氮沉降增加会促进农牧交错带盐碱化草地土壤碳的排放,这对全面理解盐碱化草地的重要性和预测全球变化对草地生态系统的潜在影响具有重要意义

北方农牧交错带典型草地土壤呼吸及其组分对刈割强度的响应

为探究草地土壤呼吸及其组分对不同刈割强度的响应,本试验以山西省右玉县农牧交错带典型草地生态系统为研究对象,于2016年按照留茬高度设置4个刈割强度(不刈割、轻度刈割(留茬10 cm)、中度刈割(留茬5 cm)和重度刈割(留茬2 cm)),用浅环和深环区分草地土壤的总呼吸和异养呼吸,分别在2017和2018年的5—9月利用Li-840静态箱法测定土壤呼吸速率。研究结果表明:土壤呼吸及其组分的速率受土壤温度的调控表现出明显的季节动态,峰值均出现在8月初;刈割主要通过影响土壤异养呼吸对土壤总呼吸产生影响;轻度刈割有降低土壤呼吸及其组分速率的趋势,在中度刈割下,土壤异养呼吸速率有增加趋势,而土壤自养呼吸速率有降低的趋势,土壤总呼吸速率没有明显变化,在重度刈割下,土壤总呼吸和异养呼吸的速率均有增加的趋势,而土壤自养呼吸的速率呈降低趋势。因此,中度刈割对土壤CO_2的排放影响较小,建议中国北方农牧交错带典型草地割草利用留茬5 cm

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