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| 1 | Some Suggested Future Directions ofQuantitative Resource Assessments显示文摘Future quantitative assessments will be expected to estimate quantities, values, and locations of undiscovered mineral resources in a form that conveys both economic viability and uncertainty associated with the resources. Historically, declining metal prices point to the need for larger deposits over time. Sensitivity analysis demonstrates that the greatest opportunity for reducing uncertainty in assessments lies in lowering uncertainty associated with tonnage estimates. Of all errors possible in assessments, these affecting tonnage estimates are by far the most important. Selecting the correct deposit model is the most important way of controlling errors because of the dominance of tonnage-deposit models are the best known predictors of tonnage. Much of the surface is covered with apparently barren rocks and sediments in many large regions. Because many exposed mineral deposits are believed to have been found, a prime concern is the presence of possible mineralized rock under cover. Assessments of areas with resources under cover must rely on extrapolation from surrounding areas, new geologic maps of rocks under cover, or analogy with other well-explored areas that can be considered training tracts. Cover has a profound effect on uncertainty and on methods and procedures of assessments because geology is seldom known and geophysical methods typically have attenuated responses. Many earlier assessment methods were based on relationships of geochemical and geophysical variables to deposits learned from deposits exposed on the surface-these will need to be relearned based on covered deposits. Mineral-deposit models are important in quantitative resource assessments for two reasons: (1) grades and tonnages of most deposit types are significantly different, and (2) deposit types are present in different geologic settings that can be identified from geologic maps. Mineral-deposit models are the keystone in combining the diverse geoscience information on geology, mineral occurrences, geophysics, and geochemistry used in resource assessments and mineral exploration. Grade and tonnage models and development of quantitative descriptive, economic, and deposit density models will help reduce the uncertainty of these new assessments. | Singer Donald A U. S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025, USA | 2001 | Journal of China University of Geosciences2001,12,1: | 15 |
| 2 | Lymphomatous involvement of gastrointestinal tract: Evaluation by positron emission tomography with ^(18)F-fluorodeoxyglucose显示文摘AIM: To demonstrate the 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) findings in patients with non-Hodgkin's lymphoma (NHL) involving the gastrointestinal (GI) tract and the clinical utility of modality despite of the known normal uptake of FDG in the GI tract.METHODS: Thirty-three patients with biopsy-proven gastrointestinal NHL who had undergone FDG-PET scan were included. All the patients were injected with 10-15 mCi FDG and scanned approximately 60 min later with a CTI/Siemens HR (+) PET scanner. PET scans were reviewed and the maximum standard uptake value (SUVmax) of the lesions was measured before and after the treatment,if data were available and compared with histologic diagnoses.RESULTS: Twenty-five patients had a high-grade lymphoma and eight had a low-grade lymphoma. The stomach was the most common site of the involvement (20 patients). In high-grade lymphoma, PET showed focal nodular or diffuse hypermetabolic activity. The average SUVmax±SD was 11.58±5.83. After the therapy,the patients whose biopsies showed no evidence of lymphoma had a lower uptake without focal lesions.The SUVmax±SD decreased from 11.58±5.83 to 2.21±0.78. In patients whose post-treatment biopsies showed lymphoma, the SUVmax±SD was 9.42±6.27. Low-grade follicular lymphomas of the colon and stomach showed diffuse hypermetabolic activity in the bowel wall (SUVmax 8.2 and 10.3, respectively). The SUVmax was 2.02-3.8 (mean 3.02) in the stomach lesions of patients with MALT lymphoma.CONCLUSION: 18F-FDG PET contributes to the diagnosis of high-grade gastrointestinal non-Hodgkin's lymphoma,even when there is the normal background FDG activity. Furthermore, the SUV plays a role in evaluating treatment response. Low-grade NHL demonstrates FDG uptake but at a lesser intensity than seen in high-grade NHL. | Sith Phongkitkarun Vithya Varavithya Toshiki Kazama Silvana C Faria Martha V Mar Donald A Podoloff Homer A Macapinlac | 2005 | World Journal of Gastroenterology2005,11,46: | 6 |
| 3 | Epigenetic profiles of pre-diabetes transitioning to type 2 diabetes and nephropathy显示文摘AIM: To examine DNA methylation profiles in a longitudinal comparison of pre-diabetes mellitus(Pre-DM) subjects who transitioned to type 2 diabetes mellitus(T2DM).METHODS: We performed DNA methylation study in bisulphite converted DNA from Pre-DM(n = 11) at baseline and at their transition to T2 DM using Illumina Infinium Human Methylation27 Bead Chip, that enables the query of 27578 individual cytosines at Cp G loci throughout the genome, which are focused on the promoter regions of 14495 genes.RESULTS: There were 694 Cp G sites hypomethylated and 174 Cp G sites hypermethylated in progression from Pre-DM to T2 DM, representing putative genes involved in glucose and fructose metabolism, inflammation, oxidative and mitochondrial stress, and fatty acid metabolism. These results suggest that this high throughput platform is able to identify hundreds of prospective Cp G sites associated with diverse genes that may reflect differences in Pre-DM compared with T2 DM. In addition, there were Cp G hypomethylation changes associated with a number of genes that may be associated with development of complications of diabetes, such as nephropathy. These hypomethylation changes were observed in all of the subjects.CONCLUSION: These data suggest that some epigenomic changes that may be involved in the progression of diabetes and/or the development of complications may be apparent at the Pre-DM state or during the transition to diabetes. Hypomethylation of a number of genes related to kidney function may be an early marker for developing diabetic nephropathy. | Thomas A Vander Jagt Monica H Neugebauer Marilee Morgan Donald W Bowden Vallabh O Shah | 2015 | World Journal of Diabetes2015,6,9: | 5 |
| 4 | Clinical application of concentrated bone marrow aspirate in orthopaedics:A systematic review显示文摘AIM To examine the evidence behind the use of concentrated bone marrow aspirate(c BMA) in cartilage, bone, and tendon repair; establish proof of concept for the use of cB MA in these biologic environments; and provide the level and quality of evidence substantiating the use of cB MA in the clinical setting.METHODS We conducted a systematic review according to PRISMA guidelines. EMBASE, MEDLINE, and Web of Knowledge databases were screened for the use of cB MA in the repair of cartilage, bone, and tendon repair. We extracted data on tissue type, cB MA preparation, cB MA concentration, study methods, outcomes, and level of evidence and reported the results in tables and text.RESULTS A total of 36 studies met inclusion/exclusion criteria and were included in this review. Thirty-one of 36(86%) studies reported the method of centrifugation and preparation of cB MA with 15(42%) studies reporting either a cell concentration or an increase from baseline. Variation of c BMA application was seen amongst the studies evaluated. Twenty-one of 36(58%) were level of evidence Ⅳ, 12/36(33%) were level of evidence Ⅲ, and 3/36(8%) were level of evidence Ⅱ. Studies evaluated full thickness chondral lesions(7 studies), osteochondral lesions(10 studies), osteoarthritis(5 studies), nonunion or fracture(9 studies), or tendon injuries(5 studies). Significant clinical improvement with the presence of hyaline-like values and lower incidence of fibrocartilage on T2 mapping was found in patients receiving cB MA in the treatment of cartilaginous lesions. Bone consolidation and time to bone union was improved in patients receiving cB MA. Enhanced healingrates, improved quality of the repair surface on ultrasound and magnetic resonance imaging, and a decreased risk of re-rupture was demonstrated in patients receiving cB MA as an adjunctive treatment in tendon repair. CONCLUSION The current literature demonstrates the potential benefits of utilizing c BMA for the repair of cartilaginous lesions, bony defects, and tendon injuries in the clinical setting. This study also demonstrates discrepancies between the literature with regards to various methods of centrifugation, variable cell count concentrations, and lack of standardized outcome measures. Future studies should attempt to examine the integral factors necessary for tissue regeneration and renewal including stem cells, growth factors and a biologic scaffold. | Arianna L Gianakos Li Sun Jay N Patel Donald M Adams Frank A Liporace | 2017 | World Journal of Orthopedics2017,8,6: | 5 |
| 5 | Cancer-related inflammation and treatment effectiveness显示文摘 | Connie I Diakos Kellie A Charles Donald C McMillan Stephen J Clarke | 2014 | Lancet Oncology2014,,: | 3 |
| 6 | 沿哥伦比亚—厄瓜多尔边界毁林速度和格局变化的卫星检测分析显示文摘本研究使用Landsat卫星数据来论证哥伦比亚—厄瓜多尔部分边界23年间(1973~1996)土地覆被变化的速度和格局。人类定居给这两个国家带来了大量毁林。变化的卫星检测分析表明,边界哥伦比亚一侧年毁林速度相对高得多。另外,哥伦比亚一侧森林覆被在研究期间几乎损失了43%,而在厄瓜多尔一侧只损失了22%。研究发现,在边界的任何一侧,都不存在单一的毁林驱动因素;但得出结论:哥伦比亚一侧的毁林速度高可能是由于定居压力高、非法古柯种植加剧。卫星图像证明,在厄瓜多尔一侧,毁林格局反映出与石油勘探和开发有关的道路网络。 | Andrés Via Fernando R.Echavarria Donald C.Rundquist 王胜 | 2004 | AMBIO-人类环境杂志2004,33,3: | 3 |
| 7 | Cadmium, Environmental Exposure, and Health Outcomes显示文摘 | Satarug Soisungwan Garrett Scott H Sens Mary Ann Sens Donald A | 2010 | Environmental Health Perspectives2010,,2: | 3 |
| 8 | Minimally invasive versus open oesophagectomy for patients with oesophageal cancer: a multicentre, open-label, randomised controlled trial显示文摘 | Surya SAY Biere Mark I van Berge Henegouwen Kirsten W Maas Luigi Bonavina Camiel Rosman Josep Roig Garcia Suzanne S Gisbertz Jean HG Klinkenbijl Markus W Hollmann Elly SM de Lange H Jaap Bonjer Donald L van der Peet Miguel A Cuesta | 2012 | The Lancet . 2012 (9829)2012,,: | 3 |
| 9 | A Model and Methodology for Hardware-software Codesign显示文摘 | Donald E T Jay K A Herman S | 1993 | IEEE Design & Test of Computers1993,10,3: | 2 |
| 10 | Development of an educational cartoon to prevent worm infections in Chinese schoolchildren显示文摘Background:With more than two billion people infected worldwide,soil-transmitted helminths(STH)are the most widespread infections.To date,STH control efforts rely predominantly on recurrent mass drug administration(MDA),which does not prevent reinfection.Additional public health measures including novel health educational tools are required for more sustained integrated control of STH.We describe the development of an educational cartoon video(The Magic Glasses)targeting STH infections in Chinese schoolchildren and its pilot testing in China.We applied an extensive community-based mixed methods approach involving input from the target group of 9–10 year old schoolchildren and key informants,such as teachers,doctors and parents,in order to identify potential STH infection risks in the study area and to formulate key messages for the cartoon.The development of the educational cartoon included three major steps:formative research,production,and pilot testing and revision.Results:We found that most adults and approximately 50%of the schoolchildren were aware of roundworm(Ascaris)infection,but knowledge of transmission,prevention and treatment of STH was poor.Observations in the study area showed that unhygienic food practices,such as eating raw and unwashed fruit or playing in vegetable gardens previously fertilised with human faeces,posed major STH infection risks.Conclusions:It was crucial to assess the intellectual,emotional,social and cultural background of the target population prior to video production in order to integrate the key messages of the cartoon into everyday situations.Overall,our strategy for the development of the cartoon and its incorporation into a health education package proved successful,and we provide a summary of recommendations for the development of future educational videos based on our experiences in China. | Franziska A Bieri Li-Ping Yuan Yue-Sheng Li Yong-Kang He Andrew Bedford Robert S Li Feng-Ying Guo Sheng-Ming Li Gail M Williams Donald P McManus Giovanna Raso Darren J Gray | 2013 | Infectious Diseases of Poverty2013,2,1: | 2 |
| 11 | Early surgery versus initial conservative treatment in patients with spontaneous supratentorial intracerebral haematomas in the International Surgical Trial in Intracerebral Haemorrhage (STICH): a randomised trial显示文摘 | A David Mendelow Barbara A Gregson Helen M Fernandes Gordon D Murray Graham M Teasdale D Terence Hope Abbas Karimi M Donald M Shaw David H Barer | 2005 | 2005 (9457)2005,,9457: | 2 |
| 12 | Blood classical monocytes phenotype is not altered in primary non-small cell lung cancer显示文摘AIM: To evaluate the M1 and M2 monocyte phenotype in patients with non-small cell lung cancer(NSCLC) compared to controls. Also, to examine the expression of Th1 and Th2 cytokines in plasma of NSCLC vs controls. METHODS: Freshly prepared peripheral blood mononuclear cells samples were obtained from patients with NSCLC(lung adenocarcinoma and squamous cell lung carcinoma) and from non-cancer controls. Flow cytometry was performed to investigate M1 and M2 phenotypes in peripheral monocytes(classical monocytes CD14+, CD45+ and CD16-) using conventional surface markers. Th1 and Th2 cytokine production was alsoanalysed in the plasma using cytometric bead array technique. RESULTS: There were no significant difference in expression of M1(HLA-DR) and/or M2 markers(CD163 and CD36) markers on classical monocytes in patients with NSCLC compared to non-cancer controls. Expression of CD11 b, CD11 c, CD71 and CD44 was also shown to be similar in patients with NSCLC compared to noncancer controls. Th1 and Th2 cytokines [interleukin(IL)-1β, IL-2, IL-4, IL-5, IL-8, IL-10, IL-12(p70), tumor necrosis factor(TNF)-α, TNF-β, and interferon-γ] analysis revealed no significant difference between patients with NSCLC and non-cancer controls. CONCLUSION: This study shows no alteration in peripheral monocyte phenotype in circulating classical monocytes in patients with NSCLC compared to noncancer controls. No difference in Th1 and Th2 cytokine levels were noted in the plasma of these patients. | Saleh A Almatroodi Christine F Mc Donald Allison L Collins I an A Darby Dodie S Pouniotis | 2014 | World Journal of Clinical Oncology2014,5,5: | 2 |
| 13 | 抗日本血吸虫卵单克隆抗体的制备和免疫化学的鉴定显示文摘用可溶性日本血吸虫卵抗原(SEA)免疫小鼠制备单克隆抗体,获得5株特异的抗日本血吸虫卵单抗。免疫球蛋白亚类鉴定均为IgG_1。免疫印迹法结果表明其所识别的日本血吸虫卵抗原的分子量分别为>200kDa、116kDa和22kDa。经两维免疫印迹法(2-Dimensional Western Blot),显示被单抗IE1识别的22kDa SEA等电点pI4.6—6之间至少有3个以上同晶型体(isomorphs)。放射免疫沉淀试验表明IE1可识别30kDa抗原。 | 许阿莲 周晓音 王炳夫 Donald A Harn | 1992 | 中国寄生虫学与寄生虫病杂志1992,10,1: | 2 |
| 14 | Adipocyte iron regulates adiponectin and insulin sensitivity显示文摘 | Gabrielsen J Scott Gao Yan Simcox Judith A Huang Jingyu Thorup David Jones Deborah Cooksey Robert C Gabrielsen David Adams Ted D Hunt Steven C Hopkins Paul N Cefalu William T McClain Donald A | 2012 | EN2012,,10: | 2 |
| 15 | Human ICE/CED-3 Protease Nomenclature显示文摘 | Emad S Alnemri David J Livingston Donald W Nicholson Guy Salvesen Nancy A Thornberry Winnie W Wong Junying Yuan | 1996 | Cell1996,,2: | 2 |
| 16 | The early bactericidal activity of streptomycin 显示文摘 | Donald PR Sirgel FA Venter A | 2002 | Int J Tuberc Dis2002,6,8: | 1 |
| 17 | The Quality of Life (QOL) Research Movement: Past, Present, and Future显示文摘 | Sirgy M A C michalos A L Ferriss R Easterlin Donald Patrick William Pavot | 2006 | Social Indicators Research2006,76,: | 1 |
| 18 | Effect of changes in syringe driver height on flow~ a small quanti- tative study显示文摘 | Donald A I Chinthamuneedi M P Spearritt D | 2007 | Crit Care Resusc2007,9,2: | 1 |
| 19 | Turning back the harmful tide显示文摘 | DONALD M A | 1997 | Nature1997,388,: | 1 |
| 20 | A randomized trial of protocol-based carefor early septic shock显示文摘 | DONALD M YEALY JOHN A | 2014 | N EnglJ Med2014,370,: | 1 |