255 research outputs found
An analysis of long-term relationships among count statistics and metrics of synthetic tropical cyclones downscaled from CMIP5 models
In a changing climate, the impact of tropical cyclones on the United States Atlantic and Gulf Coasts will be affected both by how intense and how frequent these storms become. The observational record of tropical cyclones in the Atlantic Basin is too short (A.D. 1851 to present) to allow for accurate assessment of low-frequency variability in storm activity. In order to overcome the limitations of the short observational record, we downscale four Coupled Model Intercomparison Project Phase 5 models to generate synthetic tropical cyclone data sets for the Atlantic Basin that span the interval of A.D. 850–2005. Using these long-term synthetic tropical cyclone data sets, we investigate the relationship between power dissipation and ocean temperature metrics, as well as the relationship between basin-wide and landfalling tropical cyclone count statistics over the past millennium. Contrary to previous studies, we find only a very weak relationship between power dissipation and main development region sea surface temperature in the Atlantic Basin. Consistent with previous studies, we find that basin-wide and landfalling tropical cyclone counts are significantly correlated with one another, lending further support for the use of paleohurricane landfall records to infer long-term basin-wide tropical cyclone trends.United States. National Oceanic and Atmospheric Administration (grant 424-18 45GZ
Global inequities and political borders challenge nature conservation under climate change
Underlying sociopolitical factors have emerged as important determinants of wildlife population trends and the effectiveness of conservation action. Despite mounting research into the impacts of climate change on nature, there has been little consideration of the human context in which these impacts occur, particularly at the global scale. We investigate this in two ways. First, by modeling the climatic niches of terrestrial mammals and birds globally, we show that projected species loss under climate change is greatest in countries with weaker governance and lower Gross Domestic Product, with loss of mammal species projected to be greater in countries with lower CO2 emissions. Therefore, climate change impacts on species may be disproportionately significant in countries with lower capacity for effective conservation and lower greenhouse gas emissions, raising important questions of international justice. Second, we consider the redistribution of species in the context of political boundaries since the global importance of transboundary conservation under climate change is poorly understood. Under a high-emissions scenario, we find that 35% of mammals and 29% of birds are projected to have over half of their 2070 climatic niche in countries in which they are not currently found. We map these transboundary range shifts globally, identifying borders across which international coordination might most benefit conservation and where physical border barriers, such as walls and fences, may be an overlooked obstacle to climate adaptation. Our work highlights the importance of sociopolitical context and the utility of a supranational perspective for 21st century nature conservation
Eye bank versus surgeon prepared DMEK tissues: influence on adhesion and re-bubbling rate
AIM: To investigate the difference in adhesion and rebubbling rate between eye bank and surgeon prepared Descemet membrane endothelial keratoplasty (DMEK) tissues. METHODS: Laboratory and clinical retrospective comparative interventional case series. Research corneal tissues were obtained for laboratory investigation. The clinical study involved patients with endothelial dysfunction who underwent DMEK surgery and tamponade with air. Tissues were stripped using a standard DMEK stripping technique (SCUBA) and shipped as prestripped or loaded in a 2.2 intra-ocular lens cartridge with endothelium facing inwards (preloaded) before transporting from the eye bank to the surgeon. For surgeon prepared tissues, all the grafts were stripped in the theatre and transplanted or stripped in the laboratory and tested immediately. Adhesion force and elastic modulus were measured in the centre and mid-periphery in a laboratory ex vivo investigation using atomic force microscopy, while rebubbling rates were recorded in the clinical study. RESULTS: There was no difference in endothelial cell viability between surgeon or eye bank prepared tissue. Surgeon-stripped DMEK grafts in the laboratory investigation showed significantly higher elastic modulus and adhesion force compared to prestripped and preloaded tissues (p<0.0001). In the clinical data, rebubbling rates of 48%, 40% and 15% were observed in preloaded, prestripped and surgeon-stripped DMEK grafts, respectively. Rebubbling rates were significantly associated with combined cataract surgery (p=0.009) and with time from harvesting the graft to the surgery (p=0.02). CONCLUSIONS: Decreased adhesion forces and elastic modulus in eye bank prepared tissues may contribute to increased rebubbling rates
The Vehicle, Spring 1988
Contents
CitizenCraig Titleypage 3
Justice DistributionAngie Geraldpage 4
Letter from My MotherDan Von Holtenpage 6
The Fool and His LadyRodger Patiencepage 7
What Big IsBob Zordanipage 8
Blind ArchitectureJim Reedpage 9
Ah, What a Funny Thing These EyesCraig Titleypage 10
FarmingPatrick Peterspage 11
The CowSteven M. Beamerpage 13
The Enigma of My ExistenceAngie Kathpage 14
Neon TeethMichael Salempage 15
Zombie PoseidonMichael Salempage 16
From: Letters from the Linder BuildingPatrick Peters, Bob Zordani, Dan Von Holtenpage 17
A Man of Jackson IV (City Dweller)Steven M. Beamerpage 19
11:45 p.m. FridayElizabeth McMeekanpage 20
Mr. Siegel-January 1967Timothy J. McCarthypage 21
She had a look about herA bag man of Jackson pauses for a portraitSteven M. Beamerpage 22
Citybed (Homeless of Chicago)Steven M. Beamerpage 23
Electra and the Eighteen WheelerTammy Veachpage 24
OrderRhonda Ealypage 28
Grave Mill ISteven M. Beamerpage 29
The Party (A Social Event in 80 Words or Less)Groucho Smithpage 30
Graceland and Elvis Presley EarmuffsCraig Titleypage 31
Learning to ForageDan Von Holtenpage 33
One Last Peanut at Gateway CenterReflections of Three with DeCicco and LadySteven M. Beamerpage 34
Letter from the MidwestPatrick Peterspage 35
WoodwindJim Reedpage 36
Excerpts from Notebook AustraliaKeith Schusterpage 37
Letter from the DesertPatrick Peterspage 40
Tinted Blue, Waiting for an Uptown TaxiMichael Salempage 42
Voice and Earth: A Review of The Invention of the Telephone by Bruce GuernseyDan Von Holtenpage 43https://thekeep.eiu.edu/vehicle/1052/thumbnail.jp
The Vehicle, Spring 1988
Contents
CitizenCraig Titleypage 3
Justice DistributionAngie Geraldpage 4
Letter from My MotherDan Von Holtenpage 6
The Fool and His LadyRodger Patiencepage 7
What Big IsBob Zordanipage 8
Blind ArchitectureJim Reedpage 9
Ah, What a Funny Thing These EyesCraig Titleypage 10
FarmingPatrick Peterspage 11
The CowSteven M. Beamerpage 13
The Enigma of My ExistenceAngie Kathpage 14
Neon TeethMichael Salempage 15
Zombie PoseidonMichael Salempage 16
From: Letters from the Linder BuildingPatrick Peters, Bob Zordani, Dan Von Holtenpage 17
A Man of Jackson IV (City Dweller)Steven M. Beamerpage 19
11:45 p.m. FridayElizabeth McMeekanpage 20
Mr. Siegel-January 1967Timothy J. McCarthypage 21
She had a look about herA bag man of Jackson pauses for a portraitSteven M. Beamerpage 22
Citybed (Homeless of Chicago)Steven M. Beamerpage 23
Electra and the Eighteen WheelerTammy Veachpage 24
OrderRhonda Ealypage 28
Grave Mill ISteven M. Beamerpage 29
The Party (A Social Event in 80 Words or Less)Groucho Smithpage 30
Graceland and Elvis Presley EarmuffsCraig Titleypage 31
Learning to ForageDan Von Holtenpage 33
One Last Peanut at Gateway CenterReflections of Three with DeCicco and LadySteven M. Beamerpage 34
Letter from the MidwestPatrick Peterspage 35
WoodwindJim Reedpage 36
Excerpts from Notebook AustraliaKeith Schusterpage 37
Letter from the DesertPatrick Peterspage 40
Tinted Blue, Waiting for an Uptown TaxiMichael Salempage 42
Voice and Earth: A Review of The Invention of the Telephone by Bruce GuernseyDan Von Holtenpage 43https://thekeep.eiu.edu/vehicle/1052/thumbnail.jp
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