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Morphological and biochemical responses of Oryza sativa L.(cultivar MR219) to ion beam irradiation

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第12期14卷 1132-1143页

作者： Anna Pick Kiong LING ying chian ung Sobri HUSSEIN Abdul Rahim HARUN Atsushi TANAKA Hase YOSHIHIRO Division of Human Biology International Medical University (IMU)57000 Kuala Lumpur Malaysia Department of Science Faculty of Engineering and Science Universiti Tunku Abdul Rahman53300 Setapak Kuala Lumpur Malaysia Agrotechnology and Bioscience Division Malaysian Nuclear Agency Bangi43000 Kajang Selangor Malaysia Radiation-Applied Biology Division Quantum Beam Science Directorate Japan Atomic Energy Agency 1233 Watanuki-machiTakasaki Gunma 370-1292 Japan

Objective: Heavy ion beam, which has emerged as a new mutagen in the mutation breeding of crops and ornamental plants, is expected to result in the induction of novel mutations. This study investigates the morphological and biochemical responses of Oryza sativa toward different doses of carbon ion beam irradiation. Methods: In this study, the dry seeds of O. sativa were irradiated at 0, 20, 40, 60, 80, 100, and 120 Gy, followed by in-vitro germination under controlled conditions. Morphological and biochemical studies were conducted to investigate the morphological and physiological responses of O. sativa towards ion beam irradiation. Results: The study demonstrated that low doses(10 Gy) of ion beam have a stimulating effect on the height, root length, and fresh weight of the plantlets but not on the number of leaves. Meanwhile, doses higher than 10 Gy caused reductions in all the morphological parameters studied as compared to the control samples. The highest total soluble protein content [(2.11±0.47) mg/g FW] was observed in plantlets irradiated at 20 Gy. All irradiated plantlets were found to have 0.85% to 58.32% higher specific activity of peroxidase as compared to the control samples. The present study also revealed that low doses of ion beam(10 and 20 Gy) had negligible effect on the total chlorophyll content of O. sativa plantlets while 40 Gy had a stimulating effect on the chlorophyll content. Plantlets irradiated between 40 to 120 Gy were shown to be 0.38% to 9.98% higher in total soluble nitrogen content which, however, was not significantly different from the control samples. Conclusions: Carbon ion beam irradiation administered at low to moderate doses of 10 to 40 Gy may induce O. sativa mutants with superior characteristics.

关键词： In vitro mutagenesis Ion beam irradiation Total chlorophyll content Total soluble protein content Mutation breeding

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Thermal pyrolysis conversion of methane to hydrogen(H_(2)):A review on process parameters,reaction kinetics and techno-economic analysis

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Chinese Chemical Letters 2024年第8期35卷 62-73页

作者： Yi Herng Chan Zhe Phak Chan Serene Sow Mun Lock Chung Loong Yiin Shin ying Foong Mee Kee Wong Muhammad Anwar Ishak Ven chian Quek Shengbo Ge Su Shiung Lam PETRONAS Research Sdn.Bhd.(PRSB) Kawasan Institusi BangiLot 3288&3289Off Jalan Ayer ItamKajang 43000Malaysia PETRONAS Carbon Capture&Storage(CCS)Enterprise PETRONAS Twin TowersKuala Lumpur City CentreKuala Lumpur 50088Malaysia CO_(2)Research Center(CO2RES) Department of Chemical EngineeringUniversiti Teknologi PETRONASSeri Iskandar 32610Malaysia Department of Chemical Engineering and Energy Sustainability Faculty of EngineeringUniversiti Malaysia Sarawak(UNIMAS)Kota Samarahan 94300Malaysia Institute of Sustainable and Renewable Energy(ISuRE) Universiti Malaysia Sarawak(UNIMAS)Kota Samarahan 94300Malaysia Higher Institution Centre of Excellence(HICoE) Institute of Tropical Aquaculture and Fisheries(AKUATROP)Universiti Malaysia TerengganuKuala Nerus 21030Malaysia Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China Center for Global Health Research(CGHR) Saveetha Medical CollegeSaveetha Institute of Medical and Technical Sciences(SIMATS)Saveetha UniversityChennai 602105India

Hydrogen(H_(2))is a promising renewable energy which finds wide applications as the world gears toward low-carbon ***,current H_(2) production via steam methane reforming of natural gas or gasification of coal are laden with high CO_(2) ***,methane(CH_(4))pyrolysis has emerged as a potential technology to generate low-carbon H_(2) and solid *** this review,the current state-of-art and recent progress of H_(2) production from CH_(4) pyrolysis are reviewed in *** such as funda-mental mechanism and chemistry involved,effect of process parameters on the conversion efficiency and reaction kinetics for various reaction media and catalysts are elucidated and critically ***-ature,among other factors,plays the most critical influence on the methane pyrolysis *** metal/salt could lower the operating temperature of methane pyrolysis to1000℃.Based on the reaction kinetics,metal-based cata-lysts were more efficient in lowering the activation energy of the reaction to 29.5-88 kJ/mol from that of uncatalyzed reaction(147-420.7 kJ/mol).Besides,the current techno-economic performance of the pro-cess reveals that the levelized cost of H_(2) is directly influenced by the sales price of carbon(by-product)generated,which could offset the overall ***,the main challenges of reactor design for efficient product separation and retrieval,as well as catalyst deactivation/poisoning need to be debottlenecked.

关键词： Pyrolysis Methane Hydrogen Reaction kinetics Techno-economic analysis

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Benefit of prophylactic bronchodilator withβ2 adrenergic agonist in ischemia-reperfusion-induced lung injury

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BIOCELL 2021年第5期45卷 1201-1211页

作者： CHEN-LIANG TSAI YU-HUEI LIN CHIH-ying CHANGCHIEN CHIH-FENG chian CHI-HUEI chianG Division of Pulmonary and Critical Care Department of Internal MedicineTri-Service General HospitalNational Defense Medical CenterTaipei114Taiwan Post-Baccalaureate Program in Nursing College of NursingTaipei Medical UniversityTaipei110Taiwan Department of General Medicine Tri-Service General HospitalNational Defense Medical CenterTaipei114Taiwan Division of Pulmonary Immunology and Infectious Diseases Chest DepartmentTaipei Veterans General HospitalTaipei112Taiwan

Primary lung graft dysfunction could significantly attribute to ischemia-reperfusion lung injury(IRLI)during transplantation surgery.β2-adrenergic agonists were one of the bronchodilators that had been well-established in the management of asthma and chronic obstructive pulmonary disease(COPD)with anti-inflammatory *** applying the model of isolated rat lung,we evaluated the efficacy of short-actingβ2-agonist inhalation to ameliorate ischemia-reperfusion *** experiment protocol was 180 min of global ischemia and then reperfusion for 60 *** theβ2-agonist inhalation group,aerosolized albuterol was administrated prior ischemia *** weight ratios of wet to dry lung and microvascular permeability were characterized in the IRLI *** contrast,pre-inhaledβ2-agonist significantly mitigated the severity of pulmonary *** lavage from theβ2-agonist group presented decreased leukocyte counts and cytokines production,including interleukin-1β(IL-1β),tumor necrosis factor-α(TNF-α),and macrophage inflammatory protein 2(MIP-2).Devastating oxidative stress was widely recognized during the ischemia-reperfusion process,whileβ2-agonist pretreatment revealed subsided H2O2,myeloperoxidase(MPO),and the cleavage of *** blotting from lung homogenates identified the blockade of NF-κB and MAPK activation in theβ2-agonist inhalation ***,there was no specific pharmacotherapy in IRLI *** results elucidated the protective effect ofβ2-agonist bronchodilator against ischemia-reperfusion induced oxidative stress,inflammation reaction,and pulmonary edema.

关键词： Ischemia-reperfusion lung injury β2-adrenergic agonist Bronchodilator Lung transplantation

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图书资料的馆际交流合作

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图书馆论坛 2005年第5期25卷 1-3页

作者：张白影广州大学广东广州510405

介绍了中国图书馆界推进图书资料馆际交流合作与文献资源共享的历史过程,列举了实现资源共享若干区域和系统的成功实例,指出在网络信息时代深化文献资源共享应解决的一些问题。

关键词：图书馆图书馆交流合作文献资源共享

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4种入侵性雀麦属种子的形态鉴定

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生物安全学报（中英文） 2024年第2期33卷 148-153页

作者：徐瑛赵雷张吉红虞赟方亦午宁波海关技术中心浙江宁波315192 宁波检验检疫科学技术研究院浙江宁波315192 福州海关技术中心福建福州350001

【目的】不实雀麦、硬雀麦、双雄雀麦和旱雀麦因具危害性已被公认为入侵性杂草,其种子(小花)常随进境农产品进入中国,由于外观形态较为接近易引起混肴,需对其进行进一步研究并建立鉴定方法。【方法】使用光学显微镜和扫描电镜对4种雀麦... 详细信息

【目的】不实雀麦、硬雀麦、双雄雀麦和旱雀麦因具危害性已被公认为入侵性杂草,其种子(小花)常随进境农产品进入中国,由于外观形态较为接近易引起混肴,需对其进行进一步研究并建立鉴定方法。【方法】使用光学显微镜和扫描电镜对4种雀麦小花的小穗轴、基盘、内稃、外稃等外部结构进行形态学观察和比对。【结果】不实雀麦外稃脉纹呈脊状排列;旱雀麦内稃脊具长毛被,小穗轴疤痕面明显塌陷;硬雀麦小穗轴和基盘疤痕明显拉长等宏观特征可用于种间区别。在微形态方面可通过内外稃冠细胞分布密度进行区别。【结论】结合宏观和微形态特征的鉴定方法可用于4种雀麦属杂草种子的快速识别。

关键词：雀麦属入侵种小花鉴定

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Offspring from oocytes grown in frozen-thawed ovarian tissues transplanted to male and female bodies

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Reproductive and Developmental Medicine 2022年第1期6卷 13-19页

作者： Jie Yan Yu-Fang Cai Shan-Jun Dai Xiao-Jin He ying-Pu Sun Yun-Xia Cao Jie Qiao Ri-Cheng chian Center for Reproductive Medicine Peking University Third HospitalBeijing 100191China Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education School of Basic MedicineNingxia Medical UniversityYinchuan 750004China Center for Reproductive Medicine The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Center for Reproductive Medicine Anhui Medical UniversityHefei 230032China Center for Reproductive Medicine Shanghai 10th People's Hospital of Tongji UniversityShanghai 200072China

Objective: There are few reports of live births from heterotopic transplantation of frozen-thawed ovarian tissue. The purpose of this study is to assess the follicular development in the frozen-thawed ovarian tissues following heterotopic transplantation in both female and male ***: Cluster of differentiation 1 (CD1) mice (6-8 weeks) were used in this study as ovarian tissue donors and foster mothers for embryo transfer. Sperm from CD1 male mice were used for insemination by intracytoplasmic sperm injection (ICSI). Nude severe combined immunodeficiency mice (8 weeks) were employed as recipients of ovarian tissue transplantation. The frozen-thawed ovarian tissues were transplanted to 4 sites on each mouse, female and male, subcutaneously. After 3 months, both female and male mice were injected with 5.0 IU gonadotropins intraperitoneally. Post 48 hours of injection, the mouse was killed for ovarian transplant collection. Only fully grown oocytes with contacted cumulus cells (cumulus-oocyte complexes) were then selected for maturationin *** vitro matured oocytes were inseminated with fresh sperm by ICSI, and the developed blastocysts were frozen using the vitrification method and stored until embryo transfer. After thawing, the thawed blastocysts were incubated for at least 2 hours before the transfer. The foster mice mothers mated with vasectomised male 3 days previously. Live birth was monitored at 19 days after transfer, and the resulted offspring was raised for fertility ***: The relatively high recovery rates of the transplanted ovarian tissues were collected in both frozen-thawed and fresh ovarian tissue transplants from both female and male bodies. The fully grown immature oocytes became maturein vitro and the fertilized zygotes developed to blastocyst stage. There are no differences between frozen-thawed and fresh ovarian transplants in term of oocyte quality and embryo development to blastocyst rates. Nineteen-day post-transfer, 3 fost

关键词： Ovarian tissue Cryopreservation Transplantation Oocytes Live births

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How fertility preservation guidelines have progressed worldwide:Potential implications and inspiration

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Reproductive and Developmental Medicine 2022年第1期6卷 34-41页

作者： Min-Xin Chen ying Zhang Qing-Qing Cai Shuo Zhang Ran Xu Hua Chen Yu Kang Yue Wu Ri-Cheng chian Cong-Jian Xu President Office Obstetrics and Gynecology Hospital of Fudan UniversityShanghai 200090China Fertility Preservation Center Obstetrics and Gynecology Hospital of Fudan UniversityShanghai 200090China Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases Obstetrics and Gynecology Hospital of Fudan UniversityShanghai 200090China Department of Genetics Shanghai JIAI Genetics and IVF InstituteShanghai 200011China Department of International Law China Foreign Affairs UniversityBeijing 100032China Department of Infertility Shanghai JIAI Genetics and IVF InstituteShanghai 200011China Clinical Research Center Obstetrics and Gynecology Hospital of Fudan UniversityShanghai 200090China Center for Reproductive Medicine Shanghai 10th People's Hospital of Tongji UniversityShanghai 200072China

To summarize fertility preservation (FP) guidelines and consensus provided by medical facilities worldwide. Five reference databases (PubMed/Embase, China BioMedical Literature Database, ClinicalKey, Wanfang Data, and China Knowledge Resource Integrated) and 7 guideline databases (Guideline International Network, National Collaborating Centre for Women’s and Children’s Health, National Guideline Clearinghouse, The National Institute for Health and Care Excellence, Scottish Intercollegiate Guidelines Network, New Zealand Guideline Group, and Canadian Medical Association infobase) were searched. Official websites of societies were searched to find relevant guidelines and consensus, and guidelines and published systematic reviews and consensus were reviewed from inception through May 2021. A literature search was performed regarding guidance offered in professional facilities, and 304 records (including 4 in Chinese) of existing guidelines for full-text review were found. Moreover, 55 guidelines were identified after a manual search. The literature review demonstrated that FP guidance and options were unevenly distributed worldwide for women who wanted to post-pone pregnancy or had impaired fertility after gonadal toxicity. With promising cancer survival rates and diversified family decisions, more attention should be paid to the improvement and update of accessible guidelines and regulatory infrastructure to inform patients about the available options and empower them to make informed choices. Restrictions to such services can be gradually eased due to the efficacy and safety of certain FP techniques for the right candidates to initiate pregnancy conception.

关键词： Fertility preservation Cancer patient Aging Guidance

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法治理念:希腊城邦政治文化的精粹

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上海大学学报（社会科学版） 2003年第5期10卷 42-47页

作者：沈瑞英上海大学国际工商与管理学院上海201800

法治理念产生于古希腊城邦的“生活模式”以及文化精神和公民政治共同体,其表现为自由、平等、正义等理性精神,是城邦公民政治文化的核心与精髓。作为人类政治文化的智慧,是古希腊文化对人类社会的历史贡献。

关键词：法治理念城邦政治文化

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Systematic review of diagnostic tools for peritoneal metastasis in gastric cancer-staging laparoscopy and its alternatives

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World Journal of Gastrointestinal Surgery 2023年第10期15卷 2280-2293页

作者： Si ying Adelina Ho Kon Voi Tay Lee Kong chian School of Medicine Singapore 308232Singapore Upper GI and Bariatric Division General SurgeryTan Tock Seng HospitalSingapore 308433Singapore Upper GI and Bariatric Division General SurgeryWoodlands HealthSingapore 768024Singapore

BACKGROUND Gastric cancer is one of the leading causes of cancer burden and mortality,often resulting in peritoneal metastasis in advanced stages with negative survival *** laparoscopy has become standard practice for suspected cases before a definitive gastrectomy or *** systematic review aims to compare the efficacy of other diagnostic modalities instead of staging laparoscopy as the alternatives are able to reduce cost and invasive staging ***,a radiomic model based on computed tomography and positron emission tomography(PET)has also emerged as another method to predict peritoneal *** To determine if the efficacy of computed tomography,magnetic resonance imaging and PET is comparable with staging *** Articles comparing computed tomography,PET,magnetic resonance imaging,and radiomic models based on computed tomography and PET to staging laparoscopies were filtered out from the Cochrane Library,EMBASE,PubMed,Web of Science,and Reference Citations Analysis(https://***/).In the search for studies comparing computed tomography(CT)to staging laparoscopy,five retrospective studies and three prospective studies were ***,five retrospective studies and two prospective studies were also included for papers comparing CT to PET *** one retrospective study and one prospective study were found to be suitable for papers comparing CT to magnetic resonance imaging *** Staging laparoscopy outperformed computed tomography in all measured aspects,namely sensitivity,specificity,positive predictive value and negative predictive *** resonance imaging and PET produced mixed results,with the former shown to be only marginally better than computed *** performed slightly better than PET in most measured domains,except in specificity and true negative *** speculate that this may be due to the limited F-fluorodeoxyglucose uptake in small peri

关键词： Gastric cancer Peritoneal metastases Computed tomography Positron emission tomography Magnetic resonance imaging Staging laparoscopy

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基于吩噻嗪自组装的页岩抑制剂研究

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化学研究与应用 2024年第1期36卷 144-150页

作者：唐睿刘丹洁文科李振罗元奉庆萤朱光芹中国石化西南石油工程有限公司钻井工程研究院四川德阳618000

针对当前页岩抑制剂的抑制性不足,影响上部泥岩地层钻进的问题,本文设计并合成了一种含有长链、吩噻嗪等疏水基团的小阳离子聚合物SWPE。采用FT-IR、~(1)H NMR、GPC和TG对SWPE进行结构表征;以油田钻井常用的聚胺抑制剂NH-1为对照,评价S... 详细信息

针对当前页岩抑制剂的抑制性不足,影响上部泥岩地层钻进的问题,本文设计并合成了一种含有长链、吩噻嗪等疏水基团的小阳离子聚合物SWPE。采用FT-IR、~(1)H NMR、GPC和TG对SWPE进行结构表征;以油田钻井常用的聚胺抑制剂NH-1为对照,评价SWPE的抑制性和配伍性;最后,基于泥岩岩屑表面的官能团、电性、微观形貌、元素含量、润湿性等变化,提出吸附包被机理。实验结果表明,SWPE表现出比NH-1更好的抑制效果,是一种非常有潜力的页岩抑制剂。

关键词：页岩抑制剂小阳离子聚合物疏水膜抑制机理自组装

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