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| 1 | Saponins from Roots of Panax notoginseng显示文摘Objective To study the chemical constituents in the dried roots of Panax notoginseng.Methods The constituents were isolated and purified with chromatographic methods.Their structures were elucidated by spectroscopic methods(1D,2D NMR,UV,IR,[α]D,and HRESI-TOF-MS)and chemical analyses.Results Twenty saponins including 20(S)-ginsenoside Rh1(1),6-O-β-D-(6′-acetyl)-glucopyranosyl-24-ene-dammar-3β,6α,12β,20S-tetraol(2),ginseno-side Rf(3),notoginsenoside R2(4),ginsenoside Rg2(5),ginsenoside Rg1(6),notoginsenoside Rt(7),koryoginsenoside R1(8),6-O-(β-D-glucopyranosyl)-20-O-(β-D-xylopyranosyl)-3β,6α,12β,20(S)-tetrahydroxy-dammar-24-ene(9),pseudoginsenoside Rt3(10),notoginsenoside R1(11),ginsenoside Re(12),notoginsenoside N(13),ginsenoside F1(14),ginsenoside U(15),ginsenoside Rk3(16),3β,12β-dihydroxydammar-(E)-20(22),24-diene-6-O-β-D-xylopyranosyl-(1→2)-β-D-glucopyranoside(17),ginsenoside Rh4(18),pseudoginsenoside Rt5(19),and vinaginsenoside R22(20)were obtained.Conclusion Compounds 2,19,and 20 are isolated from this species for the first time.The 1H-NMR data of compound 19 and1H-NMR and 13C-NMR data of compound 20 are first reported.Meanwhile,the NMR data ofβ-D-xylopyranosyl group in compound 9 is corrected. | Li-feng Han Kaunda Joseph Sakah Li-li Liu Agyemang Kojo Tao Wang Yi Zhang | 2014 | Chinese Herbal Medicines2014，6，2： | 13 |
| 2 | Chemical Constituents from Dried Aerial Parts of Eclipta prostrata显示文摘Objective To study the constituents in the dried aerial parts of Eclipta prostrata.Methods The constituents were isolated and purified by column chromatography and their structures were elucidated by spectroscopic methods(1D,2D NMR,UV,IR,and HRESI-TOF-MS)and chemical analyses.Results Eight compounds were isolated and identified as 7-O-methylorobol-4′-O-β-D-glucopyranoside(1),3′-hydroxybiochanin A(2),echinocystic acid28-O-β-D-glucopyranoside(3),ecliptasaponin A(4),eclalbasaponin I(5),eclalbasaponin IV(6),echinocystic acid(7),and 3-oxo-16α-hydroxy-olean-12-en-28-oic acid(8).Conclusion Compound 1 is a new compound and compound 3 is obtained from this genus for the first time. | HAN Li-feng ZHAO Jing ZHANG Yi KOJO Agyemang LIU Er-wei WANG Tao | 2013 | Chinese Herbal Medicines2013，5，4： | 6 |
| 3 | Least Privileges and Role’s Inheritance of RBAC显示文摘The main advantages of role-based access control (RBAC) are able to support the well-known security principles and roles’ inheritance. But for there remains a lack of specific definition and the necessary formalization for RBAC, it is hard to realize RBAC in practical work. Our contribution here is to formalize the main relations of RBAC and take first step to propose concepts of action closure and data closure of a role, based on which we got the specification and algorithm for the least privileges of a role. We propose that roles’ inheritance should consist of inheritance of actions and inheritance of data, and then we got the inheritance of privileges among roles, which can also be supported by existing exploit tools. | HAN Lan-sheng HONG Fan Asiedu Baffour Kojo | 2006 | Wuhan University Journal of Natural Sciences2006，11，1： | 3 |
| 4 | 豫东农村地区成人低中度氟暴露、握力与骨密度的关系显示文摘目的:探讨豫东农村地区成人低中度氟暴露、握力与骨密度的关系。方法:于2017年4~5月,采用整群抽样的方法,以河南开封市某县585名成人为调查对象开展横断面调查。通过问卷调查、体格测量和样本收集获得研究对象的基本人口学资料以及生物样本。采用氟离子选择电极法测定尿氟质量浓度,利用苦味酸比色法测定尿肌酐。分别使用超声骨密度仪、Jamar握力计测量研究对象骨密度(T)及握力。采用多重线性回归和logistic回归分析氟暴露、握力与骨密度的关系。结果:尿氟与骨密度无相关关系(P>0.05)。调整潜在混杂因素(年龄、性别、匹兹堡睡眠质量指数值)后,握力每增加1.0 kg,T值增加0.02(95%CI为0.01~0.03),研究对象发生骨质异常总风险降低5%(95%CI为1%~10%),患骨质疏松的风险降低8%(95%CI为2%~13%)。握力和尿氟对骨密度的影响存在交互作用(P交互=0.099)。结论:在低中度氟暴露地区,成人握力与骨密度呈正相关,低中度氟暴露可能对高握力人群骨密度有促进作用。 | 姜楠 孙仁杰 张洛铭 AFRIM Francis Kojo 段雷振 张艳丽 马军 朱静媛 左其亭 巴月 周郭育 | 2021 | 郑州大学学报(医学版)2021，56，1： | 3 |
| 5 | Two Coordination Polymers with High Selectivity for Sensing Iron(Ⅲ) Constructed from Bifunctional Ligand显示文摘A new ligand [1-{2-(2-pyridyl)-benzo[d]imidazole}-2-(5-hydroxyisophthalic acid) ethane] was used to synthesize cadmium and cobalt based florescent organic frameworks successfully under solvothermal conditions. Single-crystal X-ray crystallography of both complexes as well as their thermal stability and luminescence properties was investigated. Much emphasis was placed on the newly synthesized Cd-complex which shows great sensitivity for the detection of Fe^(3+) ions and could be used as a potential probe to detect the Fe^(3+) ions. | NARTEY Kojo Aboagye 胡劲松 李佳鑫 | 2021 | Chinese Journal of Structural Chemistry2021，40，4： | 2 |
| 6 | CO 2 emissions, nuclear energy, renewable energy and economic growth in the US显示文摘 | Kojo Menyah Yemane Wolde-Rufael | 2010 | Energy Policy2010，，6： | 2 |
| 7 | Vitamin C: Basic metabolism and its functionas an index of oxidative stress显示文摘 | Kojo S | 2004 | Curr Med Chem2004，11，8： | 1 |
| 8 | Development of Voiced Activity Detection (VAD) Algorithm that is Robust at Low Signal-to-Noise Ratios 显示文摘 | Kojoe Agyei-Kodie | 2003 | December2003，，： | 1 |
| 9 | Inhalable sustained-release formulation of long-acting vasoactive intestinal peptide derivative alleviates acute airway inflammation显示文摘 | Satomi Onoue Takuya Matsui Kazuki Kuriyama Kumiko Ogawa Yoshiki Kojo Takahiro Mizumoto Shin-ichiro Karaki Atsukazu Kuwahara Shizuo Yamada | 2012 | Peptides2012，，2： | 1 |
| 10 | Mechanism of NKT cell-mediated transplant tolerance显示文摘 | Jiang X Kojo S Harada M | 2007 | AM J Transplant2007，7，6： | 1 |
| 11 | Clinical significance of side population in ovarian cancer cells显示文摘 | Hosonuma S Kobayashi Y Kojo S | 2011 | Hum Cell2011，24，1： | 1 |
| 12 | Energy consumption, pollutant emissions and economic growth in South Africa显示文摘 | Kojo Menyah Yemane Wolde-Rufael | 2010 | Energy Economics2010，，6： | 1 |
| 13 | Dysfunction of T receptor AV24AJ18+ ,BV11+ double-negative regulatory natural killer T cells in autoimmune diseases显示文摘 | Kojo S Adachi Y Keino H | 2001 | Arthritis Rheum2001，44，5： | 1 |
| 14 | Dysfunction of T cell receptor AV24AJ18 +, BV11 + double-negative regulato- ry natural killer T cells in autoimmune diseases 显示文摘 | Kojo S Adachi Y Keino H | 2001 | Ar- thritis Rheum2001，44，5： | 1 |
| 15 | Determination of humic acid in natural waters by flow injection analysis with chemiluminescence detection显示文摘 | Michafowski J Haaburda P Kojo A | 2001 | Analytical Chemical Acta2001，438，12： | 1 |
| 16 | Subcutaneous panniculitic T-cell lymphoma is a tumor of cytotoxic T lymphocytes显示文摘 | Shimareet Kumar Lazlo Krenacs Jeffrey Medeiros Kojo S.J Elenitoba-Johnson Timothy C Greiner Lynne Sorbara Douglas W Kingma Mark Raffeld Elaine S Jaffe | 1998 | Human Pathology1998，，4： | 1 |
| 17 | A novel 7-Beta-(4-Carboxybutanamido)-cephalosporanic acid acylase isolated from Pseudomonasstrain C427 and its high-level production in Escherichia-coli 显示文摘 | Ishii Y Saito Y Isogai T Kojo H Yamashita M Niwa M Kohsaka M Fujimura T | 1994 | J Ferment Bioeng1994，77，6： | 1 |
| 18 | Origin of annual lami- nations in tufa deposits, southwest Japan显示文摘 | Kano A Matsuoka J Kojo T | 2003 | Palaeogeogra- phy Palaeoclimatology Palaeoecology2003，191，2： | 1 |
| 19 | Establishment of a clinical pathway as an effective tool to reduce hospitalization and charges af- ter video-assisted thoracoscopic pulmonary resection 显示文摘 | Maruvama R Mivake T Kojo M | 2006 | Thorac eardio- vase Surg2006，54，9： | 1 |
| 20 | Cadmium and Mercury in Macrofungi mechanisms of transport and accumulation显示文摘 | Kojo M R Lodenius M | 1989 | Angewandte Botanik1989，63，： | 1 |
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