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340篇 您的检索式:作者名="Jeremiah"
    题名 作者 年代 出处 被引量
1宽窄行栽植下三倍体毛白杨根系生物量分布及其对土壤养分因子的响应显示文摘三倍体毛白杨(triploid Populus tomentosa)是我国华北地区主要纸浆林品种,在该地区多采用宽窄行模式栽植。为基于根系结构特征制定该模式下毛白杨人工林高效水肥管理策略和明确影响其根系空间分布的主要因子,在5年生林分中于8株样树周围挖取2 106个土柱,研究该栽植模式下毛白杨根系生物量的空间分布特征,并分析了细根垂直分布对土壤有机质、速效磷和碱解氮等的响应。结果表明,一维垂向上,宽行内细根根重密度(FRBD)在0–30 cm土层中随深度增加而递减,但在30cm以下土层呈均匀分布(p=0.079);窄行内FRBD呈'双峰'分布,即在0–20 cm(22%)和70–110 cm(31%)土层均有较多细根分布;10–150 cm各土层中,窄行FRBD较宽行高17%–148%。宽、窄行内,随深度增加,粗根根重密度(CRBD)均呈先增后减变化,而细根粗根比(F/C)无显著变化(p>0.05),窄行平均F/C较宽行高60%。一维径向上,宽、窄行内FRBD均呈近均匀分布,而CRBD和F/C均随距离增加分别显著递减和增大。二维尺度上,FRBD在窄行内分布相对均匀,但在宽行内主要集中在表土层且随距离增加细根浅层化程度增强;CRBD在树干两侧呈'不对称'分布;垂向0–20 cm、径向160–300 cm范围是宽行内平均FRBD和F/C较高区域,分别为宽行相应指标总平均的2.8和1.1倍。FRBD在0–30 cm土层中随土壤有机质、速效磷和碱解氮含量的增加而逐渐增大,但在30 cm以下土层中无明显变化趋势。研究结果表明,宽、窄行间毛白杨根系分布的差异性主要体现在细根一维垂直分布和细根、粗根二维分布上。土壤有机质、速效磷和碱解氮是0–30 cm土层中毛白杨细根垂直分布的重要影响因子,但对下层土壤中根系分布无影响。对宽窄行栽植的毛白杨林分灌溉时,灌溉水应供给到窄行区域;施肥时,缓释肥和速效肥应分别浅施在宽行中央附近和窄行内。邸楠 席本野 Jeremiah R.PINTO 王烨 李广德 贾黎明 2013植物生态学报2013,37,10:23
2开展林权制度改革政策环境影响评价促进林业绿色发展显示文摘我国历经6年的林权制度改革作为促进林业发展的根本措施,正在不断深化并已经取得很大成就。但同时也应看到其对生态环境具有一定影响(正面和负面影响)。如果国家在实施林业制度改革之前或实施初期对其可能带来的生态环境影响进行预先的评估,有利于最大程度地减少其负面影响和扩大其正面影响,将有助于决策者做出科学决策。因此开展林权改革环境影响理论与实践研究成为当务之急,是进一步开展好林权制度改革后续的配套政策措施研究的重要内容,是保障林权改革相关政策顺利实施的重要保障。为此建议:第一,国家相关部门要高度关注林权制度改革过程中对生态环境的影响;第二,应尽快深入开展林权改革环境影响评价理论与实践研究;第三,把林权改革作为重点领域开展政策环境影响评价试点,为在规划环评基础上进一步实施政策环评制度提供技术支撑,为修改《环评法》和政策环评作好技术储备,为促进林业绿色发展保驾护航。张颖 杨桂红 陆霁 Haron Jeremiah 2012环境与可持续发展2012,37,2:7
3Effects of irrigation and weed-control methods on growth of weed and rice显示文摘A field experiment was conducted to study the effects of weeds control methods and an irrigation model on rice growth as well as water consumption and weed quantity in the paddy field.In conventional paddy rice production,one of the most important irrigated crops,a significant amount of irrigation water is lost due to percolation and evaporation.A new irrigation model called the Rain-Catching and Controlled Irrigation(RCCI)model has been developed as a viable water-saving technology in the production of paddy rice.In this study the performance of the RCCI model has been analyzed under mulching,hand weeding and weedy conditions in Jiangsu Province of China.The experiment was laid out in Randomized Complete Block Design(RCBD)with three replications and nine treatments.The three replicates consisted of three water management regimes:high dry high flooding(HD-HF),high dry low flooding(HD-LF),and shallow and frequent irrigation(SF)water treatment.The RCCI model was adopted in HD-HF and HD-LF while Flooding Irrigation(CFI)was adopted in SF as a control.The nine treatments were equally divided under mulching,hand weeding and weedy conditions.The lowest and maximum irrigation water delivery was 244.86 mm in mulching and 429.22 mm in hand weeding,respectively at HD-HF.And the lowest and maximum irrigation water delivery was 300.1 mm in the mulching field and 680.72 mm under hand weeding,respectively at HD-LF.The Nanjing 44 rice variety was used.It was observed that weed density and dry weight were significantly influenced by the amount of irrigation water in all the mulching,hand weeding and weedy plots.Considering yield and the number of irrigations,the RCCI model produced better results than CFI.Mulching under RCCI was an effective method to control weeds and reduce labor cost.In addition,mulching decreases the use of herbicides and the risk of pollution.On the other hand,mulching could improve yield and save water.Jacob Jeremiah Towa Guo Xiangping 2014International Journal of Agricultural and Biological Engineering2014,7,5:6
4Integrated photonic systems based on transformation optics enabled gradient index devices显示文摘Integrated photonics is expected to play an increasingly important role in optical communications,imaging,computing and sensing with the promise for significant reduction in the cost and weight of these systems.Future advancement of this technology is critically dependent on an ability to develop compact and reliable optical components and facilitate their integration on a common substrate.Here we reveal,with the utility of the emerging transformation optics technique,that functional components composed of planar gradient index materials can be designed and readily integrated into photonic circuits.The unprecedented design flexibility of transformation optics allows for the creation of a number of novel devices,such as a light source collimator,waveguide adapters and a waveguide crossing,which have broad applications in integrated photonic chips and are compatible with current fabrication technology.Using the finite-difference time-domain method,we perform full-wave numerical simulations to demonstrate their superior optical performance and efficient integration with other components in an on-chip photonic system.These components only require spatially-varying dielectric materials with no magnetic properties,facilitating low-loss,broadband operation in an integrated photonic environment.Qi Wu Jeremiah P Turpin Douglas H Werner 2012Light(Science & Applications)2012,1,1:6
5Global spatio-temporally harmonised datasets for producing high-resolution gridded population distribution datasets显示文摘Multi-temporal,globally consistent,high-resolution human population datasets provide consistent and comparable population distributions in support of mapping sub-national heterogeneities in health,wealth,and resource access,and monitoring change in these over time.The production of more reliable and spatially detailed population datasets is increasingly necessary due to the importance of improving metrics at sub-national and multitemporal scales.This is in support of measurement and monitoring of UN Sustainable Development Goals and related agendas.In response to these agendas,a method has been developed to assemble and harmonise a unique,open access,archive of geospatial datasets.Datasets are provided as global,annual time series,where pertinent at the timescale of population analyses and where data is available,for use in the construction of population distribution layers.The archive includes sub-national census-based population estimates,matched to a geospatial layer denoting administrative unit boundaries,and a number of co-registered gridded geospatial factors that correlate strongly with population presence and density.Here,we describe these harmonised datasets and their limitations,along with the production workflow.Further,we demonstrate applications of the archive by producing multi-temporal gridded population outputs for Africa and using these to derive health and development metrics.The geospatial archive is available at http://gffzzd3cc09b8251d45dfs5nq6nuvokwp96f9n.ffgz.tsg.suse.edu.cn/10.5258/SOTON/WP00650.Christopher T.Lloyd Heather Chamberlain David Kerr Greg Yetman Linda Pistolesi Forrest R.Stevens Andrea E.Gaughan Jeremiah J.Nieves Graeme Hornby Kytt MacManus Parmanand Sinha Maksym Bondarenko Alessandro Sorichetta Andrew J.Tatem 2019Big Earth Data2019,3,2:4
6生物毒素的研究与应用:选择性蜘蛛毒揭示Nav1.1通道在机械痛中的作用显示文摘电压门控性钠(Nav)通道参与启动大多数神经元动作电位,其中也包括痛觉初级传入神经纤维。局部麻醉剂可通过非特异性阻断所有Nav通道亚型来抑制疼痛,但探求选择性亚型调节因子将更有助于分析Nav通道亚型对化学、机械或热痛的作用及机制。美国加州大学旧金山分校的Jeremiah D.Osteen,Volker Herzig和David Julius等人通过运用电生理、组织化学及行为学,筛选和鉴定出一种蜘蛛毒素可选择性激活Nav1.1亚基,并阐明其在伤害感受和疼痛中的作用。在非神经炎症的情况下,Nav1.1的激活诱导了疼痛反应,产生了机械性痛觉过敏,而对热痛并无影响。在肠道中,高阈值机械敏感性神经纤维表达Nav1.1,且肠易激综合征模型小鼠也表现为毒素敏感性增强,证实了Nav1.1通道在调节机械痛的感觉神经纤维兴奋性中的作用。Jeremiah D.Osteen Volker Herzig John Gilchrist 余书敏 2017中国疼痛医学杂志2017,23,2:3
7Recent developments in topoisomerase-targeted cancer chemotherapy显示文摘The DNA topoisomerase enzymes are essential to cell function and are found ubiquitously in all domains of life. The various topoisomerase enzymes perform a wide range of functions related to the maintenance of DNA topology during DNA replication, and transcription are the targets of a wide range of antimicrobial and cancer chemotherapeutic agents. Natural product-derived agents, such as the camptothecin, anthracycline, and podophyllotoxin drugs, have seen broad use in the treatment of many types of cancer. Selective targeting of the topoisomerase enzymes for cancer treatment continues to be a highly active area of basic and clinical research. The focus of this review will be to summarize the current state of the art with respect to clinically used topoisomerase inhibitors for targeted cancer treatment and to discuss the pharmacology and chemistry of promising new topoisomerase inhibitors in clinical and preclinical development.Kirk E.Hevener Tatsiana A.Verstak Katie E.Lutat Daniel L.Riggsbee Jeremiah W.Mooney 2018Acta Pharmaceutica Sinica B2018,8,6:3
8The new liver allocation system: Moving toward evidence-based transplantation policy显示文摘Richard B. Freeman Russell H. Wiesner Ann Harper Sue V. McDiarmid Jack Lake Erick Edwards Robert Merion Robert Wolfe Jeremiah Turcotte Lewis Teperman 2002Liver Transplantation2002,,9:2
9Investigation of the Parameters Affecting the Cetane Number of Biodiesel显示文摘Kapila Wadumesthrige Jeremiah C. Smith John R. Wilson Steven O. Salley K. Y. Simon Ng 2008Journal of the American Oil Chemists’ Society2008,,11:2
10Relation of occupational change to Cardiovascular risk factor levels in rural Chinese men显示文摘Beifan Zhou Yihe Li Jeremiah Stamler 2003Am JPublic Health2003,93,:2
11Atomic force microscopy correlates antimetastatic potentials of HepG2 cell line with its redox/energy status: effects of curcumin and Khaya senegalensis显示文摘OBJECTIVE: The fatality of cancer is mostly dependent on the possibility of occurrence of metastasis. Thus, if the development of metastasis can be prevented through novel therapeutic strategies targeted against this process, then the success of cancer treatment will drastically increase. In this study, therefore, we evaluated the antimetastatic potentials of an extract of Khaya senegalensis and curcumin on the metastatic liver cell line HepG2, and also assessed the anticancer property of the extract.METHODS: Cells were cultured and treated with graded concentrations of test substances for 24, 48, or 72 h with provisions made for negative controls. Treated cells were assessed as follows: nanotechnologically—atomic force microscopy(AFM) was used to determine cell stiffness; biochemically—cell cytotoxicity, glutathione level and adenosine triphosphate status, caspase activation and mitochondrial toxicity were considered; and microbiologically—a carrot disk assay was used to assess the anticancer property of the extract of K. senegalensis.RESULTS: Curcumin and K. senegalensis increased the cell stiffness by 2.6-and 4.0-fold respectively, indicating their antimetastatic effects. Corresponding changes in redox(glutathione level) and energy(adenosine triphosphate) status of the cells were also demonstrated. Further mechanistic studies indicated that curcumin was not mitotoxic in HepG2 cells unlike the K. senegalensis extract. In addition, the extract potently inhibited the Agrobacterium tumefaciens-induced genetic transformation based on carrot disk assay.CONCLUSION: Cell elasticity measurement data, using AFM, strongly suggested, for the first time, that both curcumin and the extract of K. senegalensis exhibited antimetastatic properties on HepG2 cells.Jeremiah Olorunjuwon Olugbami Robert Damoiseaux Bryan France Michael A. Gbadegesin Adam Z. Stieg Shivani Sharma Oyeronke A. Odunola James K. Gimzewski 2017Journal of Integrative Medicine2017,15,3:2
122011 Update to The Society of Thoracic Surgeons and the Society of Cardiovascular Anesthesiologists Blood Conservation Clinical Practice Guidelines ? ? The International Consortium for Evidence Based Perfusion formally endorses these guidelines.显示文摘Victor A. Ferraris Jeremiah R. Brown George J. Despotis John W. Hammon T. Brett Reece Sibu P. Saha Howard K. Song Ellen R. Clough Linda J. Shore-Lesserson Lawrence T. Goodnough C. David Mazer Aryeh Shander Mark Stafford-Smith Jonathan Waters Robert A. Bak 2011The Annals of Thoracic Surgery2011,,3:2
13Anterior fusion of the spine for infective lesions in adults显示文摘Kemp HB Jackson JW Jeremiah JD 1973J Bone Joint Surg Br1973,55,4:1
14Wireless Capsule Endoscopy in the Pediatric Age Group: Experience and Complications显示文摘Libia Moy Jeremiah Levine 2007Journal of Pediatric Gastroenterology and Nutrition2007,,4:1
15Anaemia,iron deficiency and iron deficiencyanaemia among blood donors in Port Harcourt,Nigeria 显示文摘Jeremiah ZA Koate BB 2010BloodTransfus2010,8,2:1
16The influence of controlled atmosphere and vacuum packaging upon chilled pork keeping quality显示文摘L.E. Jeremiah L.L. Gibson G.C. Argnosa 1995Meat Science1995,,1:1
17Aldose Reductase–Mediated Phosphorylation of p53 Leads to Mitochondrial Dysfunction and Damage in Diabetic Platelets显示文摘Wai Ho Tang Jeremiah Stitham Yu Jin Renjing Liu Seung Hee Lee Jing Du Gourg Atteya Scott Gleim Geralyn Spollett Kathleen Martin John Hwa 2014Circulation2014,,15:1
18Pyegenic infection ocuring primary in intervertebral discs显示文摘Kemp H B Jackson J W Jeremiah J D 1973J Bone Joint Surg1973,55,4:1
19The influence of lamb chronological age, slaughter weight and gender on consumer acceptance 显示文摘Jeremiah L E 1998SID-Sheep-and-Goat-Research-Jamul1998,14,3:1
20Thoracoscopic esophageal mobilization during minimally invasive esophagectomy: a head-to-head comparison of prone versus decubitus positions显示文摘Thomas Fabian Jeremiah Martin Mario Katigbak Alicia A. McKelvey John A. Federico 2008Surgical Endoscopy2008,,11:1
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