2,154 research outputs found
Modification of nektonic fish distribution by piers and pile fields in an urban estuary
Large urban piers degrade habitat value for several estuarine benthic fish species by shading, but their effects on mobile nektonic species is less well understood due to sampling challenges. Dual Frequency Identification Sonar (DIDSON) allowed equal access to sampling in the water column of structured shaded and unshaded vs. open environments in both dark and light conditions by methods similar to video but without light. Sampling (n = 228, 5-minute transects) occurred under and around four large municipal piers of varying dimensions in the Hudson River estuary during day and night from summer and fall in 2007 - 2009. The distribution of small (5 - 25 cm in length) and large (25 – 850 cm) fishes were analyzed separately in recognition of functional guild differences. Small fishes occupied open water, shaded under-pier, and un-decked relict piling habitats, but were significantly more abundant during the day in open unshaded water than under adjacent piers or in piling habitats.. Small fish occurred under 3 of 4 piers of varying size and configuration at 10 - 20% of the median abundances of adjacent open water. However, while schools were rare under piers they could be very large, so that abundance greatly exceeded mean open water abundance variance so as to preclude confidence in differences among piers. The differences among habitats was not significant at night, and the difference among piers was also not significant at night. School membership for small fish appeared to mitigate adverse effects of shading and may influence scaling of their response to shading and could therefore influence pier design. Large (>25 cm) predatory fish were uncommon but responded similarly to habitat effects as did small fish. Habitats did not segregate fish by guild as small forage fish co-occurred in 65.8% of samples with large piscivores. Studies that provide species-specific and mechanistic interpretation of dynamic habitat use as well as further quantification of scaling effects could improve our understanding of how fishes respond to piers and other structures on urban shorelines.Peer reviewed
Kenneth M Alexander - Author and Artist
I was born to Dennis and Kathleen Alexander in a single motor garage at 21 Limerick Road in Athlone. In those days, the midwife would do her rounds on a bicycle at the time when the stork was seen flying over the now-collapsed, missing going, gone forever Athlone Towers. Either that or she went to the foot of Table Mountain and placed a hollowed out pumpkin with a precision cut hole in one side. The monkey would come, stick his or her hand in the hole, grab some pips and in trying to pull its hand out in a fist, it gets stuck. The midwife then pounces on the helpless monkey, knocks it out with her case, and then stuffs "it" into that same black case and off she motors on her "dik" wheel bicycle to deliver the latest addition to an Athlone family. The monkey cries with relief when let out of the case. I have since moved on from that belief system. For some reason, the majority of the employers I worked for still believe that. In fact, far too many white people still do. To them we are monkeys and they pay us with peanuts
Kenneth M. Ford
Kenneth Ford is Founder and Chief Executive Officer of the Florida Institute for Human & Machine Cognition (IHMC) — a not-for-profit research institute located in Pensacola, Florida. IHMC has grown into one of the nation’s premier research organizations with world-class scientists and engineers investigating a broad range of topics related to building technological systems aimed at amplifying and extending human cognition, perception, locomotion and resilience. Richard Florida has described IHMC as “a new model for interdisciplinary research institutes that strive to be both entrepreneurial and academic, firmly grounded and inspiringly ambitious.” IHMC headquarters are in Pensacola with a branch research facility in Ocala, Florida.
Dr. Ford is the author of hundreds of scientific papers and six books. Dr. Ford’s research interests include: artificial intelligence, cognitive science, human-centered computing, and entrepreneurship in government and academia. Dr. Ford received his Ph.D. in Computer Science from Tulane University. He is Emeritus Editor-in-Chief of AAAI/MIT Press and has been involved in the editing of several journals. Ford is a Fellow of the Association for the Advancement of Artificial Intelligence (AAAI), a charter Fellow of the National Academy of Inventors, a member of the Association for Computing Machinery, a member of the IEEE Computer Society, and a member of the National Association of Scholars. Ford has received many awards and honors including the Doctor Honoris Causas from the University of Bordeaux in 2005 and the 2008 Robert S. Englemore Memorial Award for his work in artificial intelligence (AI). In 2012 Tulane University named Ford its Outstanding Alumnus in the School of Science and Engineering. In 2015, the Association for the Advancement of Artificial Intelligence named Dr. Ford the recipient of the 2015 Distinguished Service Award. Also in 2015, Dr. Ford was elected as Fellow of the American Association for the Advancement of Science (AAAS). In 2017 Dr. Ford was inducted into the Florida Inventor’s Hall of Fame.
In January 1997, Dr. Ford was asked by NASA to develop and direct its new Center of Excellence in Information Technology at the Ames Research Center in Silicon Valley. He served as Associate Center Director and Director of NASA’s Center of Excellence in Information Technology. In July 1999, Dr. Ford was awarded the NASA Outstanding Leadership Medal. That same year, Ford returned to private life and to the IHMC.
In October of 2002, President George W. Bush nominated Dr. Ford to serve on the National Science Board (NSB) and the United States Senate confirmed his nomination in March of 2003. The NSB is the governing board of the National Science Foundation (NSF) and plays an important role in advising the President and Congress on science policy issues. In 2005, Dr. Ford was appointed and sworn in as a member of the Air Force Science Advisory Board.
In 2007, he became a member of the NASA Advisory Council and on October 16, 2008, Dr. Ford was named as Chairman – a capacity in which he served until October 2011. In August 2010, Dr. Ford was awarded NASA’s Distinguished Public Service Medal – the highest honor the agency confers.
In February of 2012, Dr. Ford was named to a two-year term on the Defense Science Board (DSB) and in 2013, he became a member of the Advanced Technology Board (ATB) which supports the Office of the Director of National Intelligence (ODNI). In 2018, Dr. Ford was appointed to the National Security Commission on Artificial Intelligence.https://commons.erau.edu/space-congress-bios-2019/1005/thumbnail.jp
Carceral (im)mobilities: theorizing mobility crises and state control
This submission should replace a similar and previous transmission, which was sent yesterday (June 30, 2020). Thank you
Evaluating carbon offsets from forestry and energy projects
Under the Kyoto Protocol, industrial countries accept caps on their emissions of greenhouse gases. They are permitted to acquire offsetting emissions reductions from developing countries - which do not have emissions limitations - to assist in complying with these caps. Because these emissions reductions are defined against a hypothetical baseline, practical issues arise in ensuring that the reductions are genuine. Forestry-related emissions reduction projects are often thought to present greater difficulties in measurement and implementation, than energy-related emissions reduction projects. The author discusses how project characteristics affect the process for determining compliance with each of the criteria for qualifying. Those criteria are: 1) Additionality. Would these emissions reductions not have taken place without the project? 2) Baseline and systems boundaries (leakage). What would business-as-usual emissions have been without the project? And in this comparison, how broad should spatial, and temporal system boundaries be? 3) Measurement (or sequestration). How accurately can we measure actual with-project emissions levels? 4) Duration or permanence. Will the project have an enduring mitigating effect? 5) Local impact. Will the project benefit its neighbors? For all the criteria except permanence, it is difficult to find generic distinctions between land use change and forestry and energy projects, since both categories comprise diverse project types. The important distinctions among projects have to do with such things as: a) The level and distribution of the project's direct financial benefits. b) How much the project is integrated with the larger system. c) The project components'internal homogeneity and geographic dispersion. d) The local replicability of project technologies. Permanence is an issue specific to land use and forestry projects. The author describes various approaches to ensure permanence, or adjust credits for duration: the ton-year approach (focusing on the benefits from deferring climatic damage, and rewarding longer deferral); the combination approach (bundling current land use change and forestry emissions reductions with future reductions in the buyer's allowed amount); a technology-acceleration approach; and an insurance approach.Montreal Protocol,Environmental Economics&Policies,Climate Change,Decentralization,Global Environment Facility,Environmental Economics&Policies,Energy and Environment,Carbon Policy and Trading,Montreal Protocol,Climate Change
Understanding Populism Through Difference: The Significance of Economic and Social Axes. An Interview with Kenneth Roberts, Cornell University
Kenneth M. Roberts is the Richard J. Schwartz Professor of Government and Binenkorb Director of Latin American Studies at Cornell University. His research and teaching interests focus on party systems, populism, social movements, and the politics of inequality in Latin America and beyond. He is the author of Changing Course in Latin America: Party Systems in the Neoliberal Era (Cambridge University Press) and Deepening Democracy? The Modern Left and Social Movements in Chile and Peru (Stanford University Press). He is also the co-editor of The Resurgence of the Latin American Left (Johns Hopkins University Press), The Diffusion of Social Movements (Cambridge University Press), and Beyond Neoliberalism? Patterns, Responses, and New Directions in Latin America and the Caribbean (Palgrave-MacMillan)
Migration Gains to New Hampshire From Other U.S. States Are Growing, With the Largest Gains Among Young Adults
In this data snapshot, author Kenneth Johnson discusses how New Hampshire is now gaining significantly more migrants from other U.S. destinations than earlier in the decade. The largest gains are among young adults
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