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Articles 661 - 690 of 2188
Full-Text Articles in Entire DC Network
Fog As A Water Supply In Desert Environments, Robert S. Schemenauer
Fog As A Water Supply In Desert Environments, Robert S. Schemenauer
2006
Rain and snow are not the only sources of water in arid environments. Substantial amounts of water enter watersheds through the interception of fog droplets by vegetation. This process of fog deposition is especially productive in mountainous areas where the fog is produced by the advection of clouds over the terrain. The combination of fog, with low visibilities, and moderate winds, leads to high fog fluxes that can be utilized by vegetation or artificial fog collectors. Fog water has been shown to be responsible for 20 to 30% of the water inputs in high elevation forests in the Eastern US. …
Flowering Plants: Flowering Rush To Rushes, Robert H. Mohlenbrock
Flowering Plants: Flowering Rush To Rushes, Robert H. Mohlenbrock
Illustrated Flora of Illinois
The second edition of Flowering Plants: Flowering Rush to Rushes offers new material, including a preface, seventeen new illustrations of the additional species now known from Illinois, a revised list of illustrations, and an appendix of the additions and changes since 1970 in the identification, classification, and location of the plants included in the first edition. This new edition of the first volume in the multi-volume series of The Illustrated Flora of Illinois—which provides a working reference for the identification and classification of these plant forms in the state—includes flowering rushes, arrowheads, pondweeds, naiads, duckweeds, cattails, bur reeds, spiderworts, and …
A Youth In Upheaval!, Christine E. Nagel
Ethnobotanical Observations On Some Endemic Plants Of Eastern Ghats, India, C. Sudhakar Reddy Et Al.
Ethnobotanical Observations On Some Endemic Plants Of Eastern Ghats, India, C. Sudhakar Reddy Et Al.
Ethnobotanical Leaflets
The present paper reports ethnobotanical usage of 28 endemic plant species used by the tribes of Eastern Ghats, India. All the species were enumerated with botanical name, family name, vernacular name, habit, habitat and information on ethnic uses.
The Rhizomatic Relations Of A/R/Tography, Rita L. Irwin, Ruth Beer, Stephanie Springgay, Kit Grauer, Gu Xiong, Barbara Bickel
The Rhizomatic Relations Of A/R/Tography, Rita L. Irwin, Ruth Beer, Stephanie Springgay, Kit Grauer, Gu Xiong, Barbara Bickel
Publications
A/A/r/tography is a form of practice-based research steeped in the arts and education. Alongside other arts-based, arts-informed and aesthetically defined methodologies, a/r/tography is one of many emerging forms of inquiry that refer to the arts as a way of re-searching the world to enhance understanding. Yet, it goes even further by recognizing the educative potential of teaching and learning as acts of inquiry. Together, the arts and education complement, resist, and echo one another through rhizomatic relations of living inquiry. In this article, we demonstrate rhizomatic relations in an ongoing project entitled “The City of Richgate” where meanings are constructed …
An Evaluation Of Two Gcms: Simulation Of North American Teleconnection Indices And Synoptic Phenomena, Justin T. Schoof, S C. Pryor
An Evaluation Of Two Gcms: Simulation Of North American Teleconnection Indices And Synoptic Phenomena, Justin T. Schoof, S C. Pryor
Publications
We evaluate the ability of two coupled atmospheric–oceanic GCMs – the Hadley Center’s third generation coupled climate model (HadCM3) and the Canadian Center for Climate Modeling and Analysis second-generation coupled model (CGCM2) – to simulate the North Atlantic Oscillation (NAO), the Pacific North American teleconnection pattern (PNA), and map patterns in the Midwest region of the United States, relative to NCEP/NCAR reanalysis (NNR) data. The observed (NNR-derived) and GCM-derived probability distributions and temporal behavior of the daily teleconnection indices exhibit agreement over the 1990–2001 reference period, and both GCMs successfully reproduce the range of 500-hPa map patterns over the study …
2006, Southern Illinois University Carbondale
2006, Southern Illinois University Carbondale
Graduate Highlights
No abstract provided.
2005-2006 Annual Report Of The Board Of Trustees Of Southern Illinois University, Southern Illinois University Board Of Trustees
2005-2006 Annual Report Of The Board Of Trustees Of Southern Illinois University, Southern Illinois University Board Of Trustees
Reports of the Board of Trustees, Southern Illinois University - Archives
No abstract provided.
Winds Of Change?: Projections Of Near-Surface Winds Under Climate Change Scenarios, S C. Pryor, Justin T. Schoof, R J. Barthelmie
Winds Of Change?: Projections Of Near-Surface Winds Under Climate Change Scenarios, S C. Pryor, Justin T. Schoof, R J. Barthelmie
Publications
Changes in near–surface wind speeds due to global climate change may have profound geophysical and societal impacts. However, Global Climate Models (GCMs) are unable to replicate the historically observed magnitude and spatial variability of wind speeds, so we apply a downscaling technique to generate probability distributions of wind speeds at sites in northern Europe for historical periods (1961–1990 and 1982–2000) and two future periods (2046–2065, 2081–2100). Projections for the twenty-first century (C21st) indicate no evidence of substantial evolution relative to the end of the twentieth century (C20th), although there is increased divergence of results from downscaling of different GCMs toward …
Economic Development And The Role Of Agricultural Technology, Richard Grabowski, Sharmistha Self
Economic Development And The Role Of Agricultural Technology, Richard Grabowski, Sharmistha Self
Economics Discussion Papers
In earlier debates on economic development, the agricultural sector’s role was somewhat controversial. While dualistic models highlighted the importance of agriculture, the mainstream literature placed a greater emphasis on the creation of a modern industrial sector. Soon agriculture disappeared from the mainstream development literature to re-emerge recently with a variety of multiple-sector growth models emphasizing the key role of agriculture and specifically technology in agriculture. This paper is an empirical cross-country analysis of agricultural technology’s role in economic development. Specifically, the hypothesis being tested is whether improvements in agricultural technology have a significant impact on long-run economic growth. The results …
Agricultural Development, State Effectiveness, And Long-Run Economic Development, Richard Grabowski, Sharmistha Self
Agricultural Development, State Effectiveness, And Long-Run Economic Development, Richard Grabowski, Sharmistha Self
Economics Discussion Papers
This paper begins with the presumption that rapid economic development requires an effective state. An effective state is able to act independently of powerful interest groups with the aim of allocating resources so as to maximize long-term economic growth. It will be argued that such states are more likely to arise in situations within which the state must earn its income. That is, it must construct an institutional apparatus to extract the revenue that it needs and it is dependent upon the bulk of its agricultural producers to produce this revenue. The higher agricultural productivity within a region, the more …
Water Resources Policy Issues In Illinois, Christopher L. Lant
Water Resources Policy Issues In Illinois, Christopher L. Lant
The Simon Review (Occasional Papers of the Paul Simon Public Policy Institute)
Illinois is uniquely blessed with fresh water resources. Hundreds of miles from the sea, it is in Illinois that the Great Lakes-St. Lawrence Seaway connects with the Mississippi-Ohio River system via the Chicago Sanitary and Ship Canal and the Illinois River through the heart of the state. The navigable Wabash, Missouri and Tennessee Rivers also border Illinois or terminate at its borders giving Illinois superb overall waterbased transportation access exceeded in tonnage shipped among U.S. states by only Alaska and Louisiana. Notwithstanding the serious drought Illinois is suffering in 2005, Illinois receives abundant and reliable precipitation, under the current climatic …
Cheetah: Circuit-Switched High-Speed End-To-End Transport Architecture Testbed, Xuan Zheng, Malathi Veeraraghavan, Nageswara S. V. Rao, Qishi Wu, Mengxia Zhu
Cheetah: Circuit-Switched High-Speed End-To-End Transport Architecture Testbed, Xuan Zheng, Malathi Veeraraghavan, Nageswara S. V. Rao, Qishi Wu, Mengxia Zhu
Computer Science Publications
We propose a circuit-switched high-speed end-to-end transport architecture (CHEETAH) as a networking solution to provide high-speed end-to-end circuit connectivity to end hosts on a dynamic call-by-call basis. Not only is it envisioned as a complementary service to the basic connectionless service provided by today’s Internet; it also relies on and leverages the presence of this service. Noting the dominance of Ethernet in LANs and SONET/SDH in WANs, CHEETAH circuits will consist of Ethernet segments at the ends and Ethernet-over-SONET segments in the wide area. In this article we explain the CHEETAH concept and describe a wide-area experimental network testbed we …
A Model Of Stream Channel Incision, Missouri River Tributaries In Nebraska And Iowa, Christopher Lant
A Model Of Stream Channel Incision, Missouri River Tributaries In Nebraska And Iowa, Christopher Lant
2005
Stream channel incision has significant implications for aquatic and riparian ecology, as well as river engineering and management. Understanding the geomorphic processes and cause-and-effect linkages at work in a basin experiencing channel incision is essential for effective stream restoration and planning. This applied study focused on the degraded tributaries of the Missouri River from Gavins Point Dam (RM 811.4) to the confluence with Platt River (RM 594.60).
2005 Abstract Book, Undergraduate Research Forum
2005 Abstract Book, Undergraduate Research Forum
Undergraduate Creative Activities and Research Forum Abstract Books
No abstract provided.
Linking Adult Reproduction And Larval Density Of Invasive Carp In A Large River, Michael J. Vanni, Kristin K. Arend, Mary T. Bremigan, David B. Bunnell, James E. Garvey, Maria J. Gonzalez, William H. Renwick, Patricia A. Soranno, Roy A. Stein
Linking Adult Reproduction And Larval Density Of Invasive Carp In A Large River, Michael J. Vanni, Kristin K. Arend, Mary T. Bremigan, David B. Bunnell, James E. Garvey, Maria J. Gonzalez, William H. Renwick, Patricia A. Soranno, Roy A. Stein
Publications
Eeotogists increasingly recognize the need to understand how landscapes ami food webs interact. Reservoir ecosystems are heavily subsidized by nutrients and detritus from surrounding watersheds, and ofren contain abundant populations of gizzard shad, an omnivorous ftsh that consumes plankton and detritus. Gizzard shad link terrestrial landscapes ami pelagic reservoir food webs by consuming detritus, translocating nutrients from sedimctn detritus to the water column, and consuming zooplaukton. The abundance of gizzard shad increases with watershed agricuhuralization, most likely through n variety oj mechanisms npeniting on ttuvat and adult life stages. Gizzard shad have myriad effects on reservoirs, including impacts on nutrients, …
2005, Southern Illinois University Carbondale
2005, Southern Illinois University Carbondale
Graduate Highlights
No abstract provided.
What Do They Know And When Do They Know It? An Examination Of Citizen Awareness Of Context, Brady Baybeck
What Do They Know And When Do They Know It? An Examination Of Citizen Awareness Of Context, Brady Baybeck
Publications
The connection between the individual and her aggregate geographic environment, usually defined as the neighborhood, is a key component of the contextual model of social influence. However, there is substantial anecdotal evidence that people have very little knowledge or connection to their neighborhood. In this paper we explore the connection by using data from the South Bend Study (Huckfeldt and Sprague 1985) to answer two questions. What do people know about objective conditions of their neighborhoods? Second, do these conditions influence perceptions people have of their neighborhoods? We find that (a) people have a good deal of knowledge about the …
Is There Really A “Border Effect”?, A.K.M. Mahbub Morshed
Is There Really A “Border Effect”?, A.K.M. Mahbub Morshed
Economics Discussion Papers
Abstract: The observed excess price variability in cross-border city pairs compared to that in withincountry city pairs has been defined as the “border effect.” We used a unique data set from cities that were in the same country at one time and were in two separate countries later on to examine the effects of the presence of a national border on price variability. Interestingly a border-like effect was detected even during the period when all the cities were in the same country. We also found a large border effect when cities were in two separate countries. However, we found no …
Empirical Downscaling Of Wind Speed Probability Distributions, S C. Pryor, Justin T. Schoof, R J. Barthelmie
Empirical Downscaling Of Wind Speed Probability Distributions, S C. Pryor, Justin T. Schoof, R J. Barthelmie
Publications
This paper presents a novel approach to developing empirically downscaled estimates of near-surface wind speed and energy density and results from application of the technique to multiple stations in northern Europe. The downscaling takes a probabilistic approach in that it uses the mean and standard deviation of relative vorticity at 500 hPa and mean sea level pressure gradients computed using output from the ECHAM4/OPYC3 atmosphere-ocean general circulation model as the predictors and parameters of the wind speed probability distribution at surface stations as the predictands.We demonstrate that this approach generates accurate depictions of the wind climate during the conditioning period …
2005-2006 Southern Illinois University Bulletin Carbondale Campus (Undergraduate Catalog), Southern Illinois University Carbondale
2005-2006 Southern Illinois University Bulletin Carbondale Campus (Undergraduate Catalog), Southern Illinois University Carbondale
SIU Bulletins and Course Catalogs Archives
No abstract provided.
The Impact Of Non-Stationarities In The Climate System On The Definition Of "A Normal Wind Year": A Case Study From The Baltic, S C. Pryor, R J. Barthelmie, Justin T. Schoof
The Impact Of Non-Stationarities In The Climate System On The Definition Of "A Normal Wind Year": A Case Study From The Baltic, S C. Pryor, R J. Barthelmie, Justin T. Schoof
Publications
Wind speeds over the Baltic significantly increased over the second half of the 20th century (C20th), with the majority of the increase being focused on the upper quartile of the wind speed distribution and in the southwest of the region. These changes have potentially profound implications for the wind energy resource. For example, based on the National Centers for Environmental Prediction–National Center for Atmospheric Research (NCEP–NCAR) reanalysis data it is shown that, owing to this non-stationarity, using the normalization period of 1987–98 to determine the wind resource (as in the Danish wind index) leads to overestimation of the wind energy …
Ethnobotanical Profile Of Utror And Gabral Valleys, District Swat, Pakistan, Muhammad Hamayun Et Al.
Ethnobotanical Profile Of Utror And Gabral Valleys, District Swat, Pakistan, Muhammad Hamayun Et Al.
Ethnobotanical Leaflets
Present studies were carried out to investigate ethnobotanical profile of Utror and Gabral. The twin valleys are located in the remote northwestern part of District Swat. The area is gifted with diverse and unique flora as it is adjacent to the confluence point of Himalayas, Hindu Kush and Karakorum. The people are mostly poor, illiterate and depend upon plant resources for their domestic needs. The inhabitants of Utror and Gabral utilize 176 plant species for more than 42 domestic needs. Based on their type of usage, the major usage types include 133 medicinal plants, 29 fuel wood species, 33 fodder …
Southern Alumni, Siu Alumni Association
"Science" Of Eugenics?, Madonna Spann
Sustainable Water Allocation Resembles The Starship Enterprise, Lynch
Sustainable Water Allocation Resembles The Starship Enterprise, Lynch
2004
No abstract provided.