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Effect of graded levels of fiber from alfalfa meal on apparent and standardized ileal digestibility of amino acids of growing pigs

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Journal of Integrative Agriculture 2015年第12期14卷 2598-2604页

作者： CHEN Liang GAO Li-xiang LIU Li ding ze-ming ZHANG Hong-fu State Key Laboratory of Animal Nutrition Institute of Animal Sciences Chinese Academy of Agricultural Sciences Key Laboratory for Feed Biotechnology Ministry of AgricultureFeed Research Institute Chinese Academy of Agricultural Sciences

Two experiments were conducted to determine the effects of fiber level from alfalfa meal and sampling time on the apparent ileal digestibility（AID） and standardized ileal digestibility（SID） of amino acids（AA） in growing pigs. A total of 24 ileal-cannulated pigs（Duroc×（Large White×Landrace） with body weight（21.4±1.5） kg） were randomly allotted to 4 treatments. The pigs were provided a corn-soybean meal diet or a diet containing 5, 10 or 20% of alfalfa meal during two 10-d experimental periods. The AID of AA was measured. Six ileal-cannulated pigs were fed a protein-free diet in order to estimate the endogenous protein losses and SID of AA. Ileal AA digestibility was not affected by inclusion of 5 or 10% alfalfa meal in the diet（P〉0.05）. The AID of His, Lys, Met, Phe, Thr, Val, Ala, Asp, Cys, Gly, Pro, Ser and Tyr reduced by 2.0–6.8% with the addition level of alfalfa meal（linear, P〈0.05）. The SID of His, Lys, Ser, Thr and Tyr decreased by 2.2–4.3% as the level of alfalfa meal in the diet increased（linear, P〈0.05）. The AID and SID of AA were not affected by the sampling time（P〉0.05）. A multiple linear regression analysis, taking into account both the soluble and insoluble fiber content in the diets, explained more than 36% of variation in SID of Ser and Thr（P〈0.05）. In conclusion, the corn-soybean meal diet containing 10% of alfalfa meal did not affect ileal AA digestion. The AID and SID of AA were similar between two sampling times. Increasing the concentration of total dietary fiber from 12.3 to 21.4% by adding graded levels of alfalfa meal（0–20%） to a corn-soybean meal control diet induced a linear reduction in AID and SID of most AA. Soluble and insoluble fibers from alfalfa meal have differential roles in the AA digestion, which may help explain the variation observed in the SID of partial AA. These findings would provide important information for dietary fiber level and composition related to AA digestion.

关键词： alfalfa amino acid dietary fiber digestibility pig

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防喷器组板式起吊装置有限元结构强度分析及网格无关性探究

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船海工程 2024年第S1期53卷 41-44页

作者：丁明泽中国船级社重庆分社重庆401121

针对某防喷器组板式起吊装置进行有限元结构强度分析,确定应力危险区域,并据此针对有限元结构强度分析过程中网格无关性展开探究,论述有限元结构强度分析中网格无关性即不同网格尺寸将直接影响分析过程中的计算资源、时间成本及最终分... 详细信息

针对某防喷器组板式起吊装置进行有限元结构强度分析,确定应力危险区域,并据此针对有限元结构强度分析过程中网格无关性展开探究,论述有限元结构强度分析中网格无关性即不同网格尺寸将直接影响分析过程中的计算资源、时间成本及最终分析结果的有效性,为有限元结构强度分析中网格无关性提供建议。

关键词：防喷器组板式起吊装置网格无关性

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Modular assembly of complex C-alkyl glycoside enabled via cooperative NHC and photoredox catalysis

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Science China Chemistry 2025年

作者： Rui-Qiang Jiao ming Li Xi Chen Mei-ze Xu Tian ding Xiao-Ping Gong Zhuo-Mei Li Xue-Yuan Liu Yong-Min Liang State Key Laboratory of Applied Organic Chemistry Lanzhou University College of Chemistry and Chemical Engineering Northwest Normal University

C-Alkyl glycosides are found in natural products and are indispensable in drug development programs,owing to their diverse range of medicinal ***-component reactions involving glycosyl radical addition are well documented and proved efficient for the C-alkyl glycosides ***,multicomponent reactions for the rapid and controllable construction of structurally diversified C-alkyl glycosides in a single step remains a significant challenge due to the issues associated with balancing reactivity,compatibility,and ***,we report an NHC and photoredox co-catalyzed three-component method to access complex and valuable C-alkyl *** protocol exhibits broad substrate scope and excellent chemoand ***,nine types of sugars are compatible with this *** addition,the generality of this catalytic strategy was further highlighted by the potential for scalable production,the feasibility of further modifications of the products and its successful application in the late-stage functionalization of pharmaceutical skeletons.

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Laparoscopic hepatectomy using indocyanine green attenuates postoperative inflammatory response for hepatocellular carcinoma:A propensity score matching analysis

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World Journal of Gastrointestinal Surgery 2025年第1期17卷 193-202页

作者： Wei-Xun Wu ming-Bin Huang Mei-Xia Wang Li-Hua Chen Bo Hu Zhen-Bin ding Department of Liver Surgery Zhongshan Hospital(Xiamen)Fudan UniversityXiamen 361006Fujian ProvinceChina Department of Infection Management Zhongshan Hospital(Xiamen)Fudan UniversityXiamen 361015Fujian ProvinceChina Department of Liver Surgery and Transplantation Liver Cancer InstituteZhongshan HospitalFudan UniversityShanghai 200032China Key Laboratory of Carcinogenesis and Cancer Invasion(Ministry of Education) Fudan UniversityShanghai 200032China

BACKGROUND Improving the intraoperative and postoperative performance of laparoscopic hepatectomy was quite a challenge for liver *** To determine the benefits of indocyanine green(ICG)fluorescence imaging in patients with hepatocellular carcinoma(HCC)who underwent laparoscopic hepatectomy during and after *** We retrospectively collected the clinicopathological data of 107 patients who successfully underwent laparoscopic hepatectomy at Zhongshan Hospital(Xiamen),Fudan University from June 2022 to June *** using the ICG fluorescence imaging technique,we divided them into the ICG and non-ICG *** eliminate statistical bias,a 1:1 propensity score matching analysis was *** comparison of perioperative outcomes,including inflammationrelated markers and progression-free survival,was analyzed *** Intraoperatively,the ICG group exhibited lower blood loss,a shorter surgical time,lower hepatic inflow occlusion(HIO)frequency,and a shorter total HIO ***,the participation of ICG resulted in a shorter duration of hospitalization(6.5 vs 7.6 days,P=0.03)and postoperative inflammatory response attenuation(lower neutrophil-lymphocyte ratio on the first day after surgery and platelet-lymphocyte ratio on the third day,Pding progression-free and overall survivals showed no significant difference between the *** The involvement of ICG fluorescence imaging may lead to improved perioperative outcomes,especially postoperative inflammatory response attenuation,and ultimately improve HCC patients’recovery after surgery.

关键词： Hepatocellular carcinoma Laparoscopic hepatectomy Indocyanine green fluorescence Postoperative inflammatory response attenuation Propensity score matching analysis

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Compositions and Distributions of Secondary Organic Aerosols and Their Tracers over the Pearl River Estuary Region Influenced by Continental and Marine Air Masses

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Advances in Atmospheric Sciences 2025年第4期42卷 682-696页

作者： Zhenhao LING Junlin HUANG Liqing WU Yee Jun THAM Guizhen FANG Bing WU Lili ming Xuemei WANG Xiang ding School of Atmospheric Sciences Sun Yat-sen UniversityKey Laboratory of Tropical Atmosphere-Ocean SystemMinistry of Educationand Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)ZhuhaiChina College of Ocean and Meteorology Guangdong Ocean UniversityZhanjiangChina School of Marine Sciences Sun Yat-sen UniversityZhuhaiChina Technical Center of Gongbei Customs District of China ZhuhaiChina College of Environment and Climate Guangdong-Hongkong-Macao Joint Laboratory of Collaborative Innovation for Environmental QualityJinan UniversityGuangzhouChina Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhouChina

The compositions and distributions of monoterpenes,isoprene,aromatics and sesquiterpene SOA tracers(SOAM,SOAI,SOAA and SOAS,respectively)at an island site(Da Wan Shan Island,DWS)were investigated in the context of the influence of continental and marine air masses over the Pearl River Estuary(PRE)region in winter *** sum concentration of SOA tracers was 6.2–132.8 ng m^(−3),with SOAM and SOAI as the main components in both continental(scenarios A1 and A2)and marine air masses(scenario A3),as well as their combination(scenario A4).The highest and lowest levels of SOAM were observed in A1 and A3,respectively,which were mainly related to the variations in meteorological conditions,precursor concentrations,and the degree of photochemical *** MBTCA/HGA(3-methyl-1,2,3-butanetricarboxylic acid/3-hydroxyglutaric acid)ratios suggested a less significant contribution fromα-pinene to *** variations of SOAI in the different scenarios were associated with differences in relative humidity,particle acidity,and isoprene/NOx *** respective highest and lowest concentrations of aromatics SOA tracers in A1 and A3 revealed the influence of anthropogenic precursors from upwind continental areas,which was confirmed by the correlation among biogenic and anthropogenic *** results of the tracer-based-method suggested dominant contributions of SOAs from aromatics and monoterpenes,with the highest concentrations in A1.A WRF-Chem simulation revealed that the SOAs from the above precursors only contributed 12%–25%to the total SOA at DWS,while the spatial distributions of SOAs further highlighted that the abundance of SOAs over the PRE region in winter is highly associated with air masses transported from upwind continental areas.

关键词： secondary organic aerosols tracers continental and marine air masses Pearl River Estuary region

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Breaking new ground in photocatalysis:lutetium texaphyrin as a trigger for pyroptosis through biomolecular photoredox reactions

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Science China Chemistry 2025年第1期68卷 1-2页

作者： Qihang ding Mengrong He Meijia Gu Department of Chemistry Korea UniversitySeoul 02841Republic of Korea Department of Ultrasound Medicine Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Key Laboratory of Combinatorial Biosynthesis and Drug Discovery(MOE) School of Pharmaceutical SciencesWuhan UniversityWuhan 430071China

Malignant neoplasms consistently pose a significant threat to global public health^([1,2]).In recent years,immunotherapy has demonstrated remarkable clinical success;however,its efficacy is limited by the scarcity of immune cell infiltration within tumor *** pyroptosis,a gasdermin-mediated process characterized by cellular swelling,rupture,and the release of intracellular contents such as IL-1β,IL-18,ATP,HMGB1,plays a crucial role in this context^([3,4]).

关键词： neoplasms clinical rupture

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Advancements in implantable temperature sensors:Materials,mechanisms,and biological applications

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Journal of Semiconductors 2025年第1期46卷 166-177页

作者： Zhuofan Yang Hongcheng Song He ding Beijing Engineering Research Center of Mixed Reality and Advanced Display School of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China Department of Urology Beijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthBeijing 100045China

Implantable temperature sensors are revolutionizing physiological monitoring and playing a crucial role in diagnostics,therapeutics,and life sciences *** review classifies the materials used in these sensors into three categories:metal-based,inorganic semiconductor,and organic semiconductor ***-based materials are widely used in medical and industrial applications due to their linearity,stability,and *** semiconductors provide rapid response times and high miniaturization potential,making them promising for biomedical and environmental *** semiconductors offer high sensitivity and ease of processing,enabling the development of flexible and stretchable *** review analyzes recent studies for each material type,covering design principles,performance characteristics,and applications,highlighting key advantages and challenges regarding miniaturization,sensitivity,response time,and ***,critical performance parameters of implantable temperature sensors based on different material types are summarized,providing valuable references for future sensor design and *** future development of implantable temperature sensors is discussed,focusing on improving biocompatibility,long-term stability,and multifunctional *** advancements are expected to expand the application potential of implantable sensors in telemedicine and dynamic physiological monitoring.

关键词： implantable temperature sensors biological applications flexible electronics

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Tragedy and Modernity:Two Misconstrued Cause/Effect Relationships

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中国比较文学 2025年第01期 93-104页

作者： ding Ersu the School of English Studies Shanghai International Studies University

“悲剧”与“现代性”通常被视为两个互不相干的概念，前者泛指展现人间苦难的文学作品，后者标识人类文明演变的最新阶段，但在20世纪初期和中期，有不少中外学者曾在这两者之间做出因果连接。乔治·斯坦纳及其追随者认为，现代社会崇... 详细信息

“悲剧”与“现代性”通常被视为两个互不相干的概念，前者泛指展现人间苦难的文学作品，后者标识人类文明演变的最新阶段，但在20世纪初期和中期，有不少中外学者曾在这两者之间做出因果连接。乔治·斯坦纳及其追随者认为，现代社会崇尚科学理性，导致悲剧艺术在17世纪之后一蹶不振；胡适和许多同时代其他学人则将现代性在中国姗姗来迟部分归咎于悲剧的缺失。拨开历史的迷雾，我们现在可以清晰地看到，这两个论断其实都站不住脚，因为它们基于过分狭隘的悲剧定义，而且错误地坚持悲剧的凄惨结局不可或缺。

关键词：悲剧悲剧理论现代性悲剧的死亡欢乐结局

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Satellite-assisted 6G wide-area edge intelligence:dynamics-aware task offloading and resource allocation for remote IoT services

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Science China(Information Sciences) 2025年第2期68卷 248-268页

作者： Di ZHAO Rui ding Bin SONG State Key Laboratory of Integrated Services Networks Xidian University Hangzhou Institute of Technology Xidian University China Satellite Network Group Co. Ltd.

Future 6G networks will integrate non-terrestrial communication with mobile edge computing to enable wide-area edge intelligence, providing ubiquitous communication and computation services for everyone and everything. In this paper, we introduce the intelligent cloud-edge-device architecture into low Earth orbit(LEO) satellite-supported remote Internet of Things(IoT) networks to facilitate latency-sensitive and compute-intensive IoT applications. However, the dynamic spatio-temporal characteristics inherent in LEO satellite networks, such as the high volatility of task traffic and the high mobility of space nodes, pose severe challenges. For efficient task execution, we investigate the joint optimization of cross-region task offloading and cross-domain resource allocation, and innovatively propose a spatio-temporal attention-based proximal policy optimization(STA-PPO) algorithm. Specifically, the temporal attention-based actor network analyzes the timing dependencies of task arrival and makes time-variant decisions. Simultaneously, the spatial attention-based critic network captures the spatial variations of satellite motion and evaluates the topology-related value. We verify the effectiveness of the cloud-edge-device collaboration through extensive simulations. Numerical results demonstrate that the STA-PPO algorithm outperforms benchmarks, showing the lowest system delay and the highest link throughput.

关键词： 6G wide-area edge intelligence cross-region task offloading cross-domain resource allocation spatio-temporal attention proximal policy optimization

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Vice Premier ding Xuexiang's Special Address at the Worid Economic Forum Annual Meeting 2025 Chinese Ambassador to Suriname Lin Ji's Speech at the Welcome Reception and 2025 Chinese New Year Celebration Keeping to the Right Path of Multilateralism and Promoting Open and Inclusive Development——Special Address at the World Economic Forum Annual Meeting 2025

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Beijing Review 2025年第6期68卷 I0001-I0006页

作者： ding Xuexiang State Council of the Peopled Republic of China

Professor Klaus Schwab,Distinguished Guests,Ladies and Gentlemen,Friends,It gives me great pleasure to come to beautiful Davos for the World Economic Forum(WEF)Annual Meeting,an important platform for discussing global economic issues and a vanguard for promoting international exchanges and *** small town is attractive not only for its picturesque landscape,but also for inspiring new ideas and facilitating common progress.

关键词： Forum landscape attractive

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