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Natural Science 2013年第1期5卷 130-134页

作者： Paul H. carr AF Research Laboratory Emeritus Wright-Patterson AFB USA

Although sea levels are predicted to rise 1 to 2 meters by 2100, the more immediate effects of global warming are weather extremes. The number of natural disasters since 1996 costing $1 billion or more doubled compared with the previous 15-year period. Extreme summer heat anomalies now cover about 10% of land area, up from 0.2% in 1950-1980. The human influence on global warming is evident from climate data and physical modeling. Since the beginning of the industrial era, carbon dioxide (CO2) increases correlate with those of temperature. Carbon dating shows that the CO2 increase is from burning ancient fossil fuels. Increasing CO2 and other greenhouse gases blanket and warm the earth’s surface, allowing less heat to reach the stratosphere, which is cooling. This is consistent with satellite measurements showing that solar irradiance is not changing. The present CO2 rate increase of 2 ppm/year is 300 times higher than the rate at which the earth recovered from the ice age 18,000 years ago. Without the radiative forcing of noncondensing persistent CO2, the terrestrial greenhouse would collapse, plunging the global climate into an icebound earth state. Will new technologies lower our carbon emissions in time to prevent more weather extremes? Electric cars now get the equivalent of 100 miles per gallon. The cost of electricity from solar photovoltaic cells has reached grid parity.

关键词： Climate Change Weather Extremes Global Warming Carbon Emissions

One Chinese political donation does not a scandal make

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Peace 2017年第3期 51-52页

作者： Hon.Bob carr the Australian-China Relations Institute at the University of Technology Sydney

Let’s be *** by any country to subvert Australia should be investigated,monitored and brought to light Yes,let’s ban donations from ***’s go further still-my own suggestion-and ban any donations that might reasonably be suspected as seeking to influence Australian foreign ***,almost a week after ABC’s Four Corners screened its episode Power and Influence:

关键词： One Chinese political donation does not a scandal make

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通信技术与管理

Hepatocellular Carcinoma 2005

作者： carr等

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丛书名： Current Clinical Oncology

2005年

作者： Brian I. carr

ISBN: (数字)9781592598441

ISBN: (纸本)9781588291257

A fully synthesized practical approach to hepatocellular cancer (HCC) patient management by members of the university of Pittsburgh's renowned Liver Cancer Center. Their presentation includes all the latest developments in the diagnosis and treatment of primary liver cancer. A summary chapter details for physicians the diagnostic and therapeutic decision making process for dealing with such problems as incidental tumors in the liver transplant, the role of neo-adjuvant chemotherapy, intra-arterial vs. intravenous therapy, the uses of embolization, and the significance of portal vein thrombus. Authoritative and highly practical, Hepatocellular Cancer: Diagnosis and Treatment captures for physicians the recent exciting changes that in our understanding, diagnostic methods, novel therapeutics, and day-to-day management of hepatocellular cancer

关键词： LiverCancer.

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用临界前反射和折射资料反演地震资料

世界地震译丛 1989年第1期20卷 43-49页

作者： carr.,PM 李平

Gas-propelled nanomotors alleviate colitis through the regulation of intestinal immunoenvironment-hematopexis-microbiota circuits

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Acta Pharmaceutica Sinica B 2024年第6期14卷 2732-2747页

作者： Bo Xiao Yuqi Liang Ga Liu Lingshuang Wang Zhan Zhang Libin Qiu Haiting Xu Sean carr Xiaoxiao Shi Rui LReis Subhas CKundu Zhenghua Zhu Department of Gastroenterology the First Affiliated Hospital of Nanchang UniversityNanchang 330006China College of Sericulture Textileand Biomass SciencesSouthwest UniversityChongqing 400715China Department of Neurology School of MedicineEmory UniversityAtlantaGA 30322USA Atlanta Veterans Affairs Medical Center DecaturGA 30033USA Department of Surgery School of MedicineEmory UniversityAtlantaGA 30322USA Bs Research Group I3Bs—Research Institute on BiomaterialsBiodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineAveParkBarcoGuimaraes 4805-017Portugal

The progression of ulcerative colitis(UC)is associated with immunologic derangement,intestinal hemorrhage,and microbiota *** traditional medications mainly focus on mitigating inflammation,it remains challenging to address multiple ***,a versatile gas-propelled nanomotor was constructed by mild fusion of post-ultrasonic CaO_(2) nanospheres with Cu_(2)O *** resulting CaO_(2)–Cu_(2)O possessed a desirable diameter(291.3 nm)and a uniform size *** could be efficiently internalized by colonic epithelial cells and macrophages,scavenge intracellular reactive oxygen/nitrogen species,and alleviate immune reactions by pro-polarizing macrophages to the anti-inflammatory M2 *** nanomotor was found to penetrate through the mucus barrier and accumulate in the colitis mucosa due to the driving force of the generated oxygen *** administration of CaO_(2)–Cu_(2)O could stanch the bleeding,repair the disrupted colonic epithelial layer,and reduce the inflammatory responses through its interaction with the genes relevant to blood coagulation,anti-oxidation,wound healing,and ***,it restored intestinal microbiota balance by elevating the proportions of beneficial bacteria(e.g.,Odoribacter and Bifidobacterium)and decreasing the abundances of harmful bacteria(e.g.,Prevotellaceae and Helicobacter).Our gas-driven CaO_(2)–Cu_(2)O offers a promising therapeutic platform for robust treatment of UC via the rectal route.

关键词： Nanomotor Anti-inflammation Blood coagulation Immune regulation Hematopexis Microbiota rebalance Ulcerative colitis Rectal administration

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农业机器的模糊逻辑控制导航

农业机械学报 2000年第3期31卷 31-34页

作者：应火冬 HagrasH Callaghan V Colley M carr-West A 中国水稻研究所农业工程室杭州市310006 ComputerScienceDepartment EssexUniversity ComputerScienceDepartment iculturalEngineeringDepartment WrittleAgriculturalCollege

介绍了一台试验车控制系统的构造 ,设计了一个以实现收获机械自动引导行走为目标的模糊逻辑控制器。试验表明 ,这一控制器具有抗来自断续、不匀称引导基准的噪声干扰的能力。

关键词：模糊逻辑控制自动引导行走农业机械

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Surveys on magnetospheric plasmas based on the Double Star Project (DSP) exploration

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Science China(Technological Sciences) 2008年第10期51卷 1639-1647页

作者： C. P. ESCOUBET C. M. carr H. RME A. FAZAKERLEY H. LAAKSO I. DANDOURAS M. DUNLOP ESA/ESTEC SCI-SH Keplerlaan 1 2200 AG Noordwijk The Netherlands Imperial College of Science Technology and Medicine London SW7 2BZ United Kingdom CESR BP4346 31028 Toulouse Cedex 4 France Mullard Space Science Laboratory Univ. College London Dorking Surrey RH5 6NT United Kingdom Imperial College of Science Technology and Medicine London SW7 2BZ United Kingdom Rutherford Appleton Laboratory Didcot Oxon OX11 0QX United Kingdom

The equatorial and polar satellites of the Double Star Project (DSP) were launched successfully on December 29, 2003 and July 25, 2004, respectively, and both of them are operating smoothly. The DSP provides a good opportunity for investigat-ing the structure of the magnetosphere. Based on the DSP data collected during 2004, we have surveyed the distribution of the magnetic fields and plasmas in the magnetosphere. It is found that: (1) Near the Earth’s equatorial plane within geo-centric distances of less than 7 RE, the Earth’s magnetic field is dipolar. In the vi-cinity of the magnetopause, the magnetic field is enhanced by a factor of about 1.5, and on the nightside, the magnetic field can vary significantly from the Earth’s di-pole field, likely caused by the presence of the near-Earth tail current sheet. (2) In the day-side magnetosheath, the electron and ion densities are usually both in the range of 10―30 cm?3; the ion and electron temperatures are usually about 200 and 50 eV, respectively. The flow pattern is usually smooth, with a low velocity in the subsolar region and with significantly higher velocities in the dawn and dusk flanks. (3) In the region between the magnetopause and plasmasphere the density is low, approximately 0.5―5 cm?3, and the temperature is high, about 1―10 keV for ions and 0.1―5 keV for electrons. The ion temperature has an apparent anisotropy, with the ratio of the perpendicular and parallel temperatures being about 1.0―1.3 for the night- and dusk-side magnetosphere and about 1.3―2.0 for the day- and dawn-side magnetosphere. There is an evident sunward convection of about 50 km/s in the magnetosphere. On the dawn side, the flow becomes somewhat turbulent, and in the vicinity of the night-noon meridian plane, the convection is rather slow. (4) The high-energy electrons with energies higher than 2 MeV are mainly located in the regions with 3 < L < 4.5; the size of the high-energy electrons area varies with time, it may expand and shrink

关键词： Earth’s magnetosphere space exploration geomagnetic field space plasmas

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Depth to the apparent redox potential discontinuity(aRPD)as a parameter of interest in marine benthic habitat quality models

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International Journal of Sediment Research 2018年第2期33卷 149-156页

作者： Travis G.Gerwing Kieran Cox Alyssa M.Allen Gerwing Charmaine N.carr-Harris Sarah E.Dudas Francis Juanes Ecosystem Science and Management Program University of Northern British Columbia Department of Biology University of Victoria Skeena Fisheries Commission 4. Department of Biology Vancouver Island University

The usefulness of the apparent redox potential discontinuity(aRPD) in assessments of marine benthic habitat quality was explored at two intertidal mudflats along the north Pacific coast of Canada. Two transects were established at each intertidal site, with three sediment biogeochemistry cores collected from each transect four times over the summer of 2016. Measurements of the sediment pore water dissolved oxygen(DO) content and redox(Eh) conditions were taken at the surface of the core(measured vertically), as well as at increasing depths(1 cm between readings) into the sediment(measured horizontally through predrilled holes in the biogeochemistry corer). While oxic, anoxic, oxidized, and reduced sediment pore water was observed above and below the aRPD, in general, sediment above the aRPD had higher DO content, and higher Eh values than sediment below the aRPD. Therefore, the aRPD depth can be used as a relative indicator of sediment pore water DO and Eh conditions: sediment with a deeper aRPD depth has more available DO, and the pore water has higher Eh values(more oxidized or less reduced) than sediment with a shallower aRPD depth. As such, the aRPD depth is a useful parameter to include in models that assess the quality of marine benthic habitats.

关键词： Anoxia Apparent redox potential discontinuity(aRPD) Dissolved oxygen Habitat quality Hypoxia Intertidal Marine benthos Sediment pore water