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| 1 | Artificial root exudates and soil organic carbon mineralization in a degraded sandy grassland in northern China显示文摘Plant root exudates contain various organic and inorganic components that include glucose, citric and oxalic acid. These components affect rhizosphere microbial and microfaunal activities, but the mechanisms are not fully known. Studies concerned from degraded grassland ecosystems with low soil carbon(C) contents are rare, in spite of the global distribution of grasslands in need of restoration. All these have a high potential for carbon sequestration, with a reduced carbon content due to overutilization. An exudate component that rapidly decomposes will increase soil respiration and CO2 emission, while a component that reduces decomposition of native soil carbon can reduce CO2 emission and actually help sequestering carbon in soil. Therefore, to investigate root exudate effects on rhizosphere activity, citric acid, glucose and oxalic acid(0.6 g C/kg dry soil) were added to soils from three biotopes(grassland, fixed dune and mobile dune) located in Naiman, Horqin Sandy Land, Inner Mongolia, China) and subjected to a 24-day incubation experiment together with a control. The soils were also analyzed for general soil properties. The results show that total respiration without exudate addition was highest in grassland soil, intermediate in fixed dune and lowest in mobile dune soil. However, the proportion of native soil carbon mineralized was highest in mobile dune soil, reflecting the low C/N ratio found there. The exudate effects on CO2-C emissions and other variables differed somewhat between biotopes, but total respiration(including that from the added substrates) was significantly increased in all combinations compared with the control, except for oxalic acid addition to mobile dune soil, which reduced CO2-C emissions from native soil carbon. A small but statistically significant increase in pH by the exudate additions in grassland and fixed dune soil was observed, but there was a major decrease from acid additions to mobile dune soil. In contrast, electrical conductivity decreased in grassland and fixed dune soil and increased in mobile dune. Thus, discrete components of root exudates affected soil environmental conditions differently, and responses to root exudates in soils with low carbon contents can differ from those in normal soils. The results indicate a potential for, e.g., acid root exudates to decrease decomposition rate of soil organic matter in low carbon soils, which is of interest for both soil restoration and carbon sequestration. | YongQing LUO XueYong ZHAO Olof ANDRéN YangChun ZHU WenDa HUANG | 2014 | Journal of Arid Land2014，6，4： | 11 |
| 2 | Variability of platelet aggregation in patients with clopidogrel treatment and hip fracture: A retrospective case-control study on 112 patients显示文摘AIM: To identify the rate of non-responders to clopidogrel treatment in hip fracture patients and study how non-responders differ from controls.METHODS: In a retrospective case-control study we included 28 cases of acute proximal femoral fracture with clopidogrel treatment 2011 to 2013. Eighty-four controls from the same time period were included. Data collected included response to clopidogrel measured with multiple electrode aggregometry(MEA), intraoperative bleeding, erythrocyte transfusion, time to surgery and the incidence of adverse events up to 3 mo after surgery. RESULTS: Eight(29%) of the 28 cases were nonresponders. The median intraoperative bleeding was 300 mL(range, 0-1500), and was lower for non-responders(50 m L) but did not reach statistical significance. Erythrocyte transfusions did not differ between responders, non-responders and controls. Forty-five(40%) of 112 patients had adverse events postoperatively but the rate did not differ between patients with and without clopidogrel treatment.CONCLUSION: Almost one-third of patients withclopidogrel treatment and an acute proximal femoral fracture are non-responders to antiplatelet therapy and can be operated without delay. | Anna Clareus Inga Fredriksson Hkan Wallén Max Gordon André Stark Olof Skldenberg | 2015 | World Journal of Orthopedics2015，6，5： | 4 |
| 3 | 包括岛国在内的东非的海岸带管理:问题和应对行动述评显示文摘东非和西印度洋岛国的海岸线绵延11000多km,其海岸带居住着3000万~3500万人。这是一个具有显著地理、生态和人文多样性差异的地区,海岸生境独特,生物多样性程度很高。但由于普遍的贫穷,再加上人口迅速增长、不适当或不良的发展部署以及缺乏综合规划管理等因素,已导致许多海岸地区的环境退化和资源耗竭,还伴随着各种利害关系牵连者之间的冲突日益增加。严重的海岸污染和生境破坏往往限于主要城市的附近地区。然而,这些影响正在向人口较稀少的地区逐渐扩展。海岸带综合管理(ICZM)在该地区已被承认为一种有效的资源管理方法,而且许多ICZM计划已经在区域、国家和地方各层次上启动。本文评述这些计划,特别要涉及最近的和正在进行的ICZM行动,它们是由瑞典国际开发署(SIDA)以及其他赞助者和联合国有关机构资助的。 | Christine A.Coughanowr Magnus N.Ngoile Olof Lindén 朱志辉 | 1995 | 人类环境杂志1995，24，7： | 2 |
| 4 | A prospective study of obesity and cancer risk (Sweden)显示文摘 | Alicja Wolk Gloria Gridley Malin Svensson Olof Nyrén Joseph K. McLaughlin Joseph F. Fraumeni Hans-Olov Adami | 2001 | Cancer Causes and Control2001，，1： | 2 |
| 5 | A prospective study of obesity and cancer risk (Sweden)显示文摘 | Alicja Wolk Gloria Gridley Malin Svensson Olof Nyrén Joseph K. McLaughlin Joseph F. Fraumeni Hans-Olov Adami | 2001 | Cancer Causes and Control2001，，1： | 1 |
| 6 | Elevated Hip Fracture Risk in Type 1 Diabetic Patients显示文摘 | Junmei Miao Kerstin Brismar Olof Nyrén | 2005 | Diabetes Care2005，28，： | 1 |
| 7 | 沿海地区环境和资源管理问题:对发展中国家发展的一种迅速增长的威胁显示文摘世界沿海地区自然资源和生态系统的破坏将是下一世纪可预见的年代内最重要的环境管理问题之一。人类的大多数已经生活在沿海地区,并且正以巨大的比例向这些地区迁居,这将使沿海地区的人数进一步增多。由此导致的资源过度开发、环境污染和变化、土壤侵蚀以及土地淤积将会加剧沿海环境的退化。如果不采取重大的、协调一致的行动来改变目前所见到的这种不良趋势,那么极有价值的资源就会丧失。最重要的威胁是发展中国家中最贫穷人口可能会失去食物保障。 | Anders Granlund Olof Lindén 刘建平 | 1995 | 人类环境杂志1995，24，7： | 1 |
| 8 | A prospective study of obesity and cancer risk (Sweden)显示文摘 | Alicja Wolk Gloria Gridley Malin Svensson Olof Nyrén Joseph K. McLaughlin Joseph F. Fraumeni Hans-Olov Adami | 2001 | Cancer Causes and Control2001，，1： | 1 |
| 9 | ICBM regional model for estimations of dynamics of agricultural soil carbon pools显示文摘 | Olof Andrén T. K?tterer T. Karlsson | 2004 | Nutrient Cycling in Agroecosystems2004，，2： | 1 |
| 10 | A prospective study of obesity and cancer risk (Sweden)显示文摘 | Alicja Wolk Gloria Gridley Malin Svensson Olof Nyrén Joseph K. McLaughlin Joseph F. Fraumeni Hans-Olov Adami | 2001 | Cancer Causes and Control2001，，1： | 1 |
| 11 | The risk of liver and bile duct cancer in patients with chronic viral hepatitis, alcoholism, or cirrhosis显示文摘 | Hannah Kuper Ye Weimin Ulrika Broomé Anders Romelsj? Lorelei A. Mucci Anders Ekbom Hans-Olov Adami Dimitrios Trichopoulos Olof Nyrén | 2001 | Hepatology2001，，4： | 1 |
| 12 | Good stability but high periprosthetic bone mineral loss and late-occurring periprosthetic fractures with use of uncemented tapered femoral stems in patients with a femoral neck fracture显示文摘 | Olof G Sk? ldenberg Helene Sj? ? Paula Kelly-Pettersson Henrik Bodé n Thomas Eisler André Stark Olle Muren | 2014 | Acta Orthopaedica2014，，4： | 1 |
| 13 | 越南的海岸和海洋环境状况显示文摘近几十年来,越南一直处于与外部世界隔离的状态。因而,有关其自然资源和环境问题的信息也非常有限。生态系统的所有部分均处于这种状态,而海洋环境尤其如此。但是,由于苏联解体后这个国家逐步开放,环境问题和自然资源管理已成为政府的重点事宜。由于绝大部分的人口居住在沿海地带,所以海岸和海洋区域对越南来说至关重要。 | Olof Lindén 寒江 | 1995 | 人类环境杂志1995，24，7： | 1 |
| 14 | Evaluation of the electrochemical activity of a Ti-RuO2-TiO2 permanent anode显示文摘 | Jari Aromaa Olof Forsén | 2006 | Electrochimica Acta2006，51，27： | 1 |
| 15 | Irritable bowel syndrome and dyspepsia in the general population: Overlap and lack of stability over time显示文摘 | Lars Agréus Kurt Sv?rdsudd Olof Nyrén G?sta Tibblin | 1995 | Gastroenterology1995，，3： | 1 |
| 16 | Reduced dislocation rate after hip arthroplasty for femoral neck fractures when changing from posterolateral to anterolateral approach显示文摘 | Olof Sk?ldenberg Anna Ekman Mats Salemyr Henrik Bodén | 2010 | Acta Orthopaedica2010，，5： | 1 |
| 17 | Predicting subcellular locali- zation of proteins based on their N-terminal amino acid se- quence 显示文摘 | Olof E Henrik N Soren IB | 2000 | Mol Biol2000，300，： | 1 |
| 18 | A prospective study of obesity and cancer risk (Sweden)显示文摘 | Alicja Wolk Gloria Gridley Malin Svensson Olof Nyrén Joseph K. McLaughlin Joseph F. Fraumeni Hans-Olov Adami | 2001 | Cancer Causes and Control2001，，1： | 1 |
| 19 | Interleukin 1-&bgr; gene polymorphisms and risk of gastric cancer in Sweden显示文摘 | Christina Persson Lars Engstrand Olof Nyré n Lars-Erik Hansson Helena Enroth Anna-Mia Ekstr? m Weimin Ye | 2009 | Scandinavian Journal of Gastroenterology2009，，3： | 1 |
| 20 | Risk factors for Barrett’s oesophagus: A population-based approach显示文摘 | Johan Johansson Hans-Olof H?kansson Lennart Mellblom Antti Kempas Karl-Erik Johansson Fredrik Granath Olof Nyrén | 2007 | Scandinavian Journal of Gastroenterology2007，，2： | 1 |
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