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Effects of different forms of yeast Saccharomyces cerevisiae on growth performance,intestinal development,and systemic immunity in early-weaned piglets

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Journal of Animal Science and Biotechnology 2016年第1期7卷 78-85页

作者： Zongyong Jiang shaoyong wei Zhilin Wang Cui Zhu Shenglan Hu Chuntian Zheng Zhuang Chen Youjun Hu Li Wang Xianyong Ma Xuefen Yang Key Laboratory of Animal Nutrition and Feed(South China) Ministry of Agriculture of ChinaState Key Laboratory of Livestock and Poultry BreedingGuangdong Public Laboratory of Animal Breeding and NutritionInstitute of Animal ScienceGuangdong Academy of Agricultural Sciences Agro-biological Gene Research Center Guangdong Academy of Agricultural Sciences

The present study was conducted to determine effects of different forms of yeast （Saccharomyces cerevisiae, strain Y200007） on the growth performance, intestinal development, and systemic immunity in early-weaned piglets. A total of 96 piglets （14-d old, initial average body weight of 4.5 kg） were assigned to 4 dietary treatments：（1） basa diet without yeast （Control）; （2） basal diet supplemented with 3.00 g/kg live yeast （LY）; （3） basal diet supplemented with 2.66 g/kg heat-killed whole yeast （HKY）; and （4） basal diet supplemented with 3.00 g/kg superfine yeast powders （SFY）. Diets and water were provided ad libitum to the piglets during 3-week experiment. Growth performance of piglets was measured weekly. Samples of blood and small intestine were collected at days 7 and 21 of experiment. Dietary supplementation with LY and SFY improved G：F of piglets at days ]-21 of the experiment （P 〈 0.05） compared to Control group. Serum concentrations of growth hormone （GH）, triiodothyronine （T3）, tetraiodothyronine （T4）, and insulin growth factor 1 （iGF-1） in piglets at day 21 of the experiment were higher when fed diets supplemented with LY and SFY than those in Control group （P 〈 0.05）. Compared to Control group, contents of serum urea nitrogen of piglets were reduced by the 3 yeast-supplemented diets （P 〈 0.05）. Diets supplemented with LY increased villus height and villus-to-crypt ratio in duodenum and jejunum of piglets （P 〈 0.05） compared to other two groups at day 7 of the experiment. Feeding diets supplemented with LY and SFY increased （P 〈 0.05） serum concentrations of IgA, IL-2, and IL-6 levels in piglets compared to Control. The CD4＋/CD8＋ ratio and proliferation of T-lymphocytes in piglets fed diets supplemented with LY were increased compared to that of Control group at day 7 of the experiment （P 〈 0.05）. In conclusion, dietary supplementation with both LY and SFY enhanced feed conversion, small intestinal development, and systemic immunity in early-weaned piglets

关键词： Growth performance Immunity Intestinal development Piglets Saccharomyces cerevisiae Yeast

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优秀运动队领队思想政治工作的特点、原则与方法

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体育科技 2010年第3期31卷 25-27,36页

作者：韦少勇广西举重运动发展中心南宁530031

领队作为管理者和服务者,在优秀运动队中发挥着非常重要的作用。分析认为,领队思想政治工作在优秀运动队管理中处于核心地位,具有长期性和反复性、综合性和间接性、艰巨性和复杂性3大特点,分别阐述了优秀运动队领队工作的原则与方法,以... 详细信息

领队作为管理者和服务者,在优秀运动队中发挥着非常重要的作用。分析认为,领队思想政治工作在优秀运动队管理中处于核心地位,具有长期性和反复性、综合性和间接性、艰巨性和复杂性3大特点,分别阐述了优秀运动队领队工作的原则与方法,以期为优秀运动队的管理提供参考。

关键词：优秀运动队领队教练员运动员思想政治工作

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米诺环素治疗急性智齿冠周炎的疗效及对患者症状消失时间的影响

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中国医院用药评价与分析 2019年第3期19卷 325-326,330页

作者：魏少勇熊飞湖北省谷城县人民医院口腔科湖北谷城441700

目的:探讨米诺环素治疗急性智齿冠周炎的疗效及对患者症状消失时间的影响。方法:选取2018年1—3月湖北省谷城县人民医院收治的急性智齿冠周炎患者120例,患牙共计148颗,以随机数字表法分为观察组和对照组,每组患牙74颗。观察组患者给予... 详细信息

目的:探讨米诺环素治疗急性智齿冠周炎的疗效及对患者症状消失时间的影响。方法:选取2018年1—3月湖北省谷城县人民医院收治的急性智齿冠周炎患者120例,患牙共计148颗,以随机数字表法分为观察组和对照组,每组患牙74颗。观察组患者给予米诺环素治疗,对照组患者给予碘甘油治疗。比较两组患者的临床疗效及患者症状消失时间的差异。结果:观察组患者的总有效率为91.7%(55/60),明显优于对照组的86.7%(52/60),差异有统计学意义(P<0.05)。观察组患者的牙齿肿痛、张口受限、淋巴结肿大及全身症状等的消失时间明显短于对照组,差异均有统计学意义(P<0.05)。结论:米诺环素治疗急性智齿冠周炎的疗效较好,且能有效缩短患者的症状消失时间。

关键词：米诺环素急性智齿冠周炎疗效症状消失时间影响

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复方氯己定含漱液与西帕依固龈液预防种植体植入后早期感染的疗效对比分析

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中国药物滥用防治杂志 2022年第3期28卷 349-352,362页

作者：付立群魏少勇襄阳市谷城县人民医院口腔科湖北谷城441700

目的:探讨复方氯己定含漱液与西帕依固龈液预防种植体植入后早期感染的临床效果。方法:选取2020年4月—2021年10月我院实施口腔种植手术的86例患者作为研究对象,按随机数字表法分为对照组和观察组,每组43例。对照组术后予以复方氯己定... 详细信息

目的:探讨复方氯己定含漱液与西帕依固龈液预防种植体植入后早期感染的临床效果。方法:选取2020年4月—2021年10月我院实施口腔种植手术的86例患者作为研究对象,按随机数字表法分为对照组和观察组,每组43例。对照组术后予以复方氯己定含漱液,观察组术后予以西帕依固龈液,比较两组术后种植体周围细菌定植数、牙周指标[龈沟出血指数(SBI)、菌斑指数(PLI)、牙周袋深度(PD)]、伤口愈合情况及用药安全性。结果:术后1周,观察组需氧菌、兼性厌氧菌及专性厌氧菌定植数略高于对照组,但差异无统计学意义(P>0.05);观察组SBI、PLI低于对照组,PD小于对照组,差异有统计学意义(P0.05)。结论:复方氯己定含漱液与西帕依固龈液用于种植体植入后早期感染预防中均可达到确切抑菌作用,且安全性良好,西帕依固龈液能更能有效改善牙周指标,促进伤口愈合。

关键词：口腔种植感染复方氯己定含漱液西帕依固龈液

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Mineral Chemistry of Melanite from Calcitic Ijolite, the Oka Carbonatite Complex, Canada: Implications for Multi-Pulse Magma Mixing

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Journal of Earth Science 2016年第4期27卷 599-610页

作者： wei Chen weiqi Zhang Antonio Simonetti shaoyong Jiang State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Department of Civil & Environmental Engineering & Earth Sciences University of Notre Dame State Key Laboratory for Mineral Deposits Research School of Earth Sciences and Engineering Nanjing University

Ti-rich garnet is found within calcitic ijolite from the Oka carbonatite complex in Canada, which is characterized by 58%-73% andradite component（2.12 wt.%-4.18 wt.% TiO_2） and classified as melanite. The garnet displays complex zoning and contains abundant high field strength elements（HFSEs） and rare earth elements（REEs）. Three groups（Ⅰ, Ⅱ, Ⅲ） have been identified based on their petrographic nature. Compared to groups Ⅱ and Ⅲ, Group Ⅰ garnet cores contain higher TiO_2, Mg O, HFSE, and REE and lower SiO_2 abundances. The distinct chemical and petrographic signatures of the investigated garnets cannot be attributed to simple closed system crystallization, but they are consistent with the multi-pulse magma mixing. Combined with previously reported U-Pb ages for apatite from the calcitic ijolite, at least three stages of magma evolution and subsequent mixing have been involved in the generation of calcitic ijolite at Oka. The early-formed melt that generated Group I garnet core was later mixed with at least two small-volume, more evolved melts. The intermediate stage melt formed the remaining garnet along with some pyroxene, calcite, nepheline, and apatite at 127±3.6 Ma. The youngest, most evolved melt generated the majority of pyroxene, calcite, nepheline, and apatite within the calcitic ijolite at 115±3.1 Ma.

关键词： melanite garnet calcitic ijolite Oka magma mixing.

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Effects of overlying water aeration on phosphorus fractions and alkaline phosphatase activity in surface sediment

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Journal of Environmental Sciences 2011年第2期23卷 206-211页

作者： Jianjun Chen shaoyong Lu Yikun Zhao wei Wang Minsheng Huang School of Resource and Environmental Sciences East China Normal University Shanghai 200062 China State Environmental Protection Key Laboratory for Lake Pollution Control Research Center of Lake Environment Chinese Research Academy of Environmental Sciences Beijing 100012 China Civil and Environment Engineering School University of Science & Technology Beijing Beijing 100083 China

Microbial activity may influence phosphorus （P） deposit and release at the water sediment interface. The properties of DO （dissolved oxygen）, pH, P fractions （TE Ca-E Fe-R OE IP）, and APA （alkaline phospfiatase activity） at the water sediment interface were measured to investigate microbial activity variations in surface sediment under conditions of two-month intermittent aeration in overlying water. Results showed that DO and TP of overlying water increased rapidly in the first week and then decreased gradually after 15 day of intermittent aeration. Microorganism metabolism in surface sediment increased pH and decreased DO and TP in the overlying water. After two-month intermittent aeration, APA and OP from surface sediment （0-2 cm） were both significantly higher than those from bottom sediment （6-8 cm）（p 〈 0.05）, and surface sediment Fe-P was transferred to OP during the course of microorganism reproduction on the surface sediment. These results suggest that microbial activity and microorganism biomass from the surface sediment were higher than those from bottom sediment after two-month intermittent aeration in the overlying water.

关键词： aeration disturbance sediment phosphorus fractions alkaline phosphatase

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Boron Isotopic Fractionation and Trace Element Incorporation in Various Species of Modern Corals in Sanya Bay, South China Sea

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Journal of Earth Science 2014年第3期25卷 431-444页

作者： Haizhen wei shaoyong Jiang Yingkai Xiao N Gary Hemming State Key Laboratory for Mineral Deposits Research Department of Earth Sciences Nanjing University State Key Laboratory of Geological Processes and Mineral Resources Faculty of Earth ResourcesChina University of Geosciences Wuhan Qinghai Institute of Salt Lakes Chinese Academy of Sciences Lamont-Doherty Earth Observatory of Columbia University Queens College School of Earth and Environmental Sciences

The boron isotope paleo-pH proxy has been extensively studied due to its potential for understanding past climate change, and further calibrations were considered for accurate applications of the proxy because of significant variability related to biocarbonate microstructure. In this work, we studied the boron isotopic fractionation between modern marine corals and their coexisting seawater collected along shallow area in Sanya Bay, South China Sea. The apparent partition coefficient of boron（KD） ranged from 0.83×10-3 to 1.69×10-3, which are in good agreement with previous studies. As the analyzed coral skeleton（~5 g） spanned the growth time period of 1–2 years, we discussed the boron isotopic fractionation between pristine corals and modern seawater using the annual mean seawater pH of 8.12 in this sea area. Without taking the vital effect into account,（11B/10B）coral values of all living corals spread over the curves of（11B/10B）borate vs.（11B/10B）sw with the α4-3 values ranging from 0.974 to 0.982. After calibrating the biological effect on the calcifying fluid pH, the field-based calcification on calcifying fluid pH（i.e., Δ（pHbiol-pHsw）） for coral species of Acropora, Pavona, Pocillopora, Faviidae, and others including Proites are 0.42, 0.33, 0.36, 0.19, respectively, and it is necessary to be validated by coral culturing experiment in the future. Correlations in B/Ca vs. Sr/Ca and B/Ca vs. pHbiol approve temperature and calcifying fluid pH influence on skeletal B/Ca. Fundamental understanding of the thermodynamic basis of the boron isotopes in marine carbonates and seawater will strengthen the confidence in the use of paleo-pH proxy as a powerful tool to monitor atmospheric CO2 variations in the past.

关键词： boron isotope paleo-pH proxy boron isotopic fractionation trace element modern coral.

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Edge Computing-Based Tasks Offloading and Block Caching for Mobile Blockchain

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Computers, Materials & Continua 2020年第2期62卷 905-915页

作者： Yong Yan Yao Dai Zhiqiang Zhou wei Jiang shaoyong Guo Electric Power Research Institute State Grid Zhejiang Electric Power CompanyHangzhouChina State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications BeijingChina State Grid Corporation of China BeijingChina

Internet of Things(IoT)technology is rapidly evolving,but there is no trusted platform to protect user privacy,protect information between different IoT domains,and promote edge ***,we integrate the blockchain technology into constructing trusted IoT ***,the application of blockchain in IoT is hampered by the challenges posed by heavy computing *** solve the problem,we put forward a blockchain framework based on mobile edge computing,in which the blockchain mining tasks can be offloaded to nearby nodes or the edge computing service providers and the encrypted hashes of blocks can be cached in the edge computing service ***,we model the process of offloading and caching to ensure that both edge nodes and edge computing service providers obtain the maximum profit based on game theory and auction ***,the proposed mechanism is compared with the centralized mode,mode A(all the miners offload their tasks to the edge computing service providers),and mode B(all the miners offload their tasks to a group of neighbor devices).Simulation results show that under our mechanism,mining networks obtain more profits and consume less time on average.

关键词： Edge computing blockchain mining offloading block caching

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Load-Balancing and QoS Based Dynamic Resource Allocation Method for Smart Gird Fiber-Wireless Networks

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Chinese Journal of Electronics 2019年第6期28卷 1234-1243页

作者： XU Siya LI Peng QI Feng GUO shaoyong ZHOU Guiping DENG wei LI Yueyue State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Shenyang Electric Power Supply Company State Grid Liaoning Electric Power Company Co.LTd. Beijing Guodiantong Network Technical Co.LTd.

Real-time network resource allocation based on virtualization technology is an important method to solve the solidification problem of Fiber-wireless(Fi-Wi) access networks. To increase the resource utilization and meet the specific QoS requirements of smart gird communication services, a Load-balancing and QoS based dynamic resource allocation method(LbQ-DR) is proposed with three sub-mechanisms. A time-window based substrate network resource update mechanism is designed to describe the realtime resource consumption of substrate networks, which can balance the accuracy of resource status and the complexity of the allocation algorithm.A QoS-based Virtual network request(VNR) sorting mechanism is presented to precisely calculate the priority of VNRs and reasonably sort the incoming services.A load-balancing based resource allocation mechanism is designed to avoid unbalanced resource ***, the channel interference is considered in the cost of embedding and a collision domain mechanism is introduced to decrease interference. Simulation results demonstrate that the proposed method can provide heterogeneous smart grid businesses with differentiated service, improve the utilization and economic benefits of the network and make the network more balanced.

关键词： Load-balancing Quality of Service(QoS) Smart grid communication networks Fiber-wireless(Fi-Wi) networks Resource allocation

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A QoS-Aware Packet Scheduling Mechanism in Cognitive Radio Networks for Smart Grid Applications

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China Communications 2016年第2期13卷 68-78页

作者： XU Siya wei Lei LIU Zhu GUO shaoyong QIU Xuesong MENG Luoming State Key Laboratory of Network and Switching Technology Beijing University of Posts and TelecommunicationsBeijing 100876China Information&Telecommunication Branch of Nanjing Power Supply Company of State Grid Jiangsu Electric Power Company Nanjing 210008China State Grid Information&Telecommunication Co. Ltd.Beijing 100031China

Cognitive radio sensor network is applied to facilitate network monitoring and management, and achieves high spectrum efficiencies in smart grid. However, the conventional traffic scheduling mechanisms are hard to provide guaranteed quality of service for the secondary users. It is because that they ignore the influence of diverse transition requirements in heterogeneous traffi c. Therefore, a novel Qo S-aware packet scheduling mechanism is proposed to improve transmission quality for secondary users. In this mechanism, a Qo S-based prioritization model is established to address data classification firstly. And then, channel quality and the effect of channel switch are integrated into priority-based packet scheduling mechanism. At last, the simulation is implemented with MATLAB and OPNET. The results show that the proposed scheduling mechanism improves the transmission quality of high-priority secondary users and increase the whole system utilization by 10%.

关键词： smart grid cognitive radio sensornetworks (CRSN) quality of service (QoS) scheduling mechanism

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