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Simulated perturbation in the sea-to-air flux of dimethylsulfi de and the impact on polar climate

Journal of Oceanology and Limnology 2021年第1期39卷 110-121页

作者： Bo QU Albert JGABRIC rebecca jackson School of Science Nantong UniversityNantong 226219China School of Environment and Science Griffi th UniversityBrisbane 4111QLDAustralia

Marine biogenic emission of dimethylsulfi de(DMS)has been well recognized as the main natural source of reduced sulfur to the remote marine atmosphere and has the potential to aff ect climate,especially in the polar *** used a global climate model(GCM)to investigate the impact on atmospheric chemistry from a change to the contemporary DMS fl ux to that which has been projected for the late 21 st *** perturbed simulation corresponded to conditions that pertained to a tripling of equivalent CO 2,which was estimated to occur by year 2090 based on current worst-case greenhouse gas emission *** changes in zonal mean DMS fl ux were applied to 50°S–70°S Antarctic(ANT)and 65°N–80°N Arctic(ARC)*** results indicate that there are clearly diff erent impacts after perturbation in the southern and northern polar *** quantities related to the sulfur cycle show a higher increase in ***,most sulfur compounds have higher peaks in *** perturbation in DMS fl ux leads to an increase of atmospheric DMS of about 45%in ANT and 33.6%in *** sulfur dioxide(SO 2)vertical integral increases around 43%in ANT and 7.5%in ***(SO 4)vertical integral increases by 17%in ANT and increases around 6%in *** emissions increases by 21%in ANT and increases by 9.7%in ***,oxidation of DMS by OH increases by 38.2%in ARC and by 15.17%in *** optical depth(AOD)increases by 4%in the ARC and by 17.5%in the ANT,and increases by 22.8%in austral *** importance of the perturbation of the biogenic source to future aerosol burden in polar regions leads to a cooling in surface temperature of 1 K in the ANT and 0.8 K in the ***,polar regions in the Antarctic Ocean will have a higher off setting eff ect on warming after DMS fl ux perturbation.

关键词： dimethylsulfi de(DMS) sulfur dioxide DMS sea-to-air fl ux perturbation global climate model(GCM) polar region

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Availability of Information on Reptile Health and Welfare from Stores Selling Reptiles

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Open Journal of Veterinary Medicine 2016年第3期6卷 59-67页

作者： David L. Williams rebecca jackson Queen’s Veterinary School Hospital Department of Veterinary Medicine University of Cambridge Cambridge England

The popularity of keeping reptiles such as snakes and lizards is ever increasing. The health and welfare of these animals depends on the knowledge and understanding of their environmental and nutritional needs. But where does a new owner of these species obtain such information? This study aims to investigate what information is available in pet shops and stores for the reptile owning public and how well this information is imparted. Our findings show that there is a lot of excellent advice on the husbandry of reptiles in some shops while others offer less advice. It is hoped that through this study areas of downfall on primary knowledge can be recognized so that all shops can aspire to the highest levels of information.

关键词： Reptile Health Welfare Care Information

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拉美：全球养老金改革的“实验室”

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财经文摘 2009年第8期 38-39页

作者： Richard jackson rebecca Strauss Neil Howe 美国战略和国际研究中心

拉美的情况是，老龄化问题可能比经济成就先至。拉美已经成为全球养老金制度改革的“实验室”。

关键词：实验室养老金改革拉美养老金制度改革老龄化问题经济成就

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Diversity of yO T-cell antigens

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Cellular & Molecular Immunology 2013年第1期10卷 13-20页

作者： Willi K Born M Kemal Aydintug rebecca L O'Brien Integrated Department of Immunology National Jewish Health Denver CO USA University of Colorado Denver Aurora CO USACorrespondence: Dr WK Born National Jewish Health 1400 Jackson Street GB K409 Denver CO 80206 USA.

In the last two decades, it has become clear that yo T cells recognize a diverse array of antigens including self and foreign, large and small, and peptidic and non-peptidic molecules. In this respect, 78 antigens as a whole resemble more the antigens recognized by antibodies than those recognized by T cells. Because of this antigenic diversity, no single mechanism--such as the major histocompatibility complex （MHC） restriction of ap T cells--is likely to provide a basis for all observed T-cell antigen receptor （TCR）-dependent 78 T-cell responses. Furthermore, available evidence suggests that many individual 78 T cells are poly-specific, probably using different modes of ligand recognition in their responses to unrelated antigens. While posing a unique challenge in the maintenance of self-tolerance, this broad reactivity pattern might enable multiple overlapping uses of 78 T-cell populations, and thus generate a more efficient immune response.

关键词： antigen recognition ligand T-cell receptor yo T cells

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