723 research outputs found
Phytoplankton production, photosynthetic (P vs E) parameters, and particulate organic carbon and nitrogen within distinct water masses of eastern Australian coastal and shelf waters between 29 °S and 36 °S during spring 2010
No full textThe present dataset is part of an interdisciplinary project carried out on board the RV Southern Surveyor off New South Wales (Australia) from the 15th to the 31st October 2010. The main objective of the research voyage was to evaluate how the East Australian Current (EAC) affects the optical, chemical, physical, and biological water properties of the continental shelf and slope off the NSW coast
THE STRUCTURE OF ELECTORAL SUCCESS: DETERMINING VICTORY OR DEFEAT FROM CONTRIBUTION DISPERSION IN STATE LEGISLATIVE RACES
No full textHow does the distribution of contributors to a candidate relate to a candidate’s potential for electoral success? Rather than assume that electoral politics in the United States is a plutocratic exercise, I argue that diversity, or dispersion, in a donor pool is just as valuable to candidate as being well-financed. The candidates who are able to achieve diverse contributor pools are just as likely to win as those with fewer, large donors, due to their increased representational potential. Democratic governance, then, can be supported by candidates with broad sets of contributors; these candidates should be just as likely to win their elections because of the heterogeneity of their contributor bases as the candidates who are funded by a few, wealthy citizens. Hypotheses are tested using a unique data set of 2010 state legislative election contributions and results. Two aspects of dispersion theory, including the geographic spread of contributors across a candidate’s district and early giving, are found to significantly increase candidate vote shares
The undoubtedly true narrative of Ross Dyson
No full textThis thesis is a work of creative fiction by the author
Kalim Kashani
No full textKalīm Kāshāni, Abū Ṭālib (b. Hamadān, ca. 990-94/1581-85; d. Kashmir, 1061/1651), Persian poet and one of the leading exponents of the so-called Indian style (sabk-i hindī) particularly evident in his lyrics (ghazals). Poet laureate at the court of the Mughal emperor Shāh Jahān (1037-67/1628-57), he was author of a collection of original poems in different genres and a long narrative poem dedicated to celebrate his patron
Swamp dredge: Research into grunge
No full textFor this project I have researched grunge music and created a body of work influenced by this genre. During my extended contextual research into the genre, I looked at both the artists and producers. I wrote/co-wrote the songs, played some of the instruments and produced the recordings. These are now available for download on www.soundcloud.com/swampdredg
Menkes disease: identification of normal and aberrant copper transport protein of the upper GI tract of MObr mice, 1981
No full textThe Brindled variant mouse (Mo ) is a neurological mutant mouse with a deficiency in copper transport (Hunt et al., 1974). The male of this sex-linked inherited disease survives for 14 days postnatally and has, in many respects, features common to the Menkes Kinky Hair Disease (MKHD) in humans. As in the case of MKHD, only male hemizygotes are affected but female heterozygotes show irregularly mottled color of their fur, as observed in the skin of a Black feamle that gave birth to an infant with MKHD. With the use of gel electrophoresis the banding pattern of intestinal cell membrane proteins from Mobr (Mobr male, Mobr female) mice were compared to those of the Black agouti type (normal littermates). When a difference in extracted protein components of the membranes compared was found, we further attempted to characterize this difference in the following ways (a) the individual protein bands were removed from the gels, concentrated and rechromatographed to ensure identity and purity, (b) where there was a quantitative dif-ference in the electrophoresed protein bands, these bands were also treated as in (a) above, (c) the protein was evaluated for (i) carbohydrate and lipid components; (ii) copper binding, (iii) zinc binding, (d) anti-bodies to the normal and Mo male (aberrant) proteins were prepared and the rabbit was used as the antibody producer, (e) these anti-bodies were injected into the mouse arterial system which supplies the upper small intestine. After a few hours, tests were run to ascertain the ability of the infected Black Agouti mouse to ascertain the ability of the infected Black Agouti mouse to transport copper across the intestinal mucosa into the blood. When we discovered a protein to be missing from the Mo male samples, the Ouchterlony method was used to determine whether the protein was truly deleted from the Mo male mouse or if there were structural alterations that caused the difference in electrophoretic behavior (band in another position). There are other tests that could have been done to determine the specific biochemical abnormality but these would require a very large number of progeny and current facilities do not allow for such a colony and the lack of predictability of the numbers of male hemizygotes per litter also argues against these at this time. A reasonable solution would be to set up the maintenance stocks of the Brindled strain and collect the data over a longer period of time. We are reporting the discovery of a biochemical marker that is related to the geneti
Biogeochemical dynamics of an intermittently open estuary: a field and modelling study.
No full textThis thesis presents a combined modelling and observational study of an intermittently open and closed lake or lagoon (ICOLL) in south-eastern Australia. ICOLLs are a common, yet vulnerable type of estuary characterised by low freshwater inflow leading to a sand berm being formed across the entrance preventing oceanic flushing. The
accumulation of nutrients during the closed phase, and the increased water residence time, can have detrimental effects on the estuary if the nutrient load cannot be assimilated. The general aim of this study was to develop a quantitative understanding of ecological processes in Intermittently Closed and Open Lakes or Lagoons (ICOLLs) through a combination of field work and ecological modelling.
The field-based component of the studied was completed in Smiths Lake, NSW Australia. The field data shows that concentrations of NH3, NOx and Chlorophyll a in Smiths Lake gradually increases over time between the two studied opening events,
before declining while the lake is open to the ocean. Phosphorus concentration is relatively low throughout both cycles. Of the 2 opening events, one was long (~ 3.5 months) and one was short (~3 weeks). Initially ammonia concentrations following this short open period were 2-4 times higher than the initial values from the previous 2 closures. The reduced open phase also resulted in more persistent stratification. The observations show that the duration of the open/closed phases will influence the physiochemical characteristics of the water column.
A spatially resolved, eleven-box ecological model was developed for Smiths Lake. The process descriptions in the ecological model are based on a combination of physical and physiological limits to the processes of nutrient uptake, light capture by phytoplankton and predator/prey interactions. An inverse model is used to calculate mixing coefficients from salinity observations. When compared to field data, the ecological model obtains fits for salinity, nitrogen, phosphorus, chlorophyll a and zooplankton that are within 1.5
standard deviations of the mean of the field data. Simulations show that nutrient limitation (nitrogen and phosphorus) is the dominant factor limiting growth of the autotrophs during both the open and closed phases of the lake. The model is characterised by strong oscillations in phytoplankton and zooplankton abundance, typical of predator-prey cycles. A sensitivity analysis was completed using a simplified 1-box configuration, coupled with the existing ecological model. When small perturbations in the initial conditions of DIN, phytoplankton and zooplankton are implemented, the standard deviations of the state variables strongly attract to a declining
oscillation, showing the variation between runs decreasing with time. The most sensitive parameters in the model were the feeding efficiency of small and large zooplankton, and the mortality of epiphytes and small zooplankton which all had normalised sensitivities of 1.28, 1.11, 1.01 and 1.05 respectively for a 10% change in
parameter value. The non-linearity of the model is illustrated by increasing the percentage change of the parameter. For a 25% change in feeding efficiency of small and large zooplankton, the normalised sensitivity increased to 1.28 and 1.15
respectively, and for a 50% change, they increased further to 1.78 and 1.35 respectively.
The ecological state variables were also sensitive to increased catchment loads and depths. The modelled system switches from seagrass dominated to algal dominated at loads over 10× the current loads, with increased plankton biomass and suspended solids shading the seagrass.
The spatially resolved ecological model is run for a variety of open/closed cycles to assess the impact of various opening regimes on the model state variables. The results indicate that Smiths Lake is capable of assimilating its current nutrient loads without persistent phytoplankton blooms or a decrease in seagrass biomass. When catchment loads are increased by 10× or the duration of the lake open/closed cycle is increased there is a corresponding increase in seagrass biomass. In contrast, small and large
phytoplankton both increase in biomass as the duration of the open phase increases.
Small and large phytoplankton growth is generally limited by phosphorus, and seagrass growth is limited by nitrogen under normal catchment loads. Due to the shallow depths and low phytoplankton biomass, seagrass only becomes light limited when the nutrient and suspended solids loads are increased 10×. This switch to light limitation only decreases the biomass for short periods
The Grizzly, November 15, 1994
No full textJudiciary Board Hearing Ends with Guilty Verdict • Founders\u27 Day Closes 125th Anniversary Celebration • Sexual Discrimination in the Legal Profession • C. Everett Koop Speaks at Convocation • Republicans Sweep Democrats • Professor Opens Doors to Sociological Imagination • Great Minds Don\u27t Think Alike • Scholarship Allows Professor to Experience African Culture • Musical Ensembles to Present Concert • A Lesson in American Alcohol Abuse • Jason Pierce, Musical Missionary, to Perform • Bears Challenge Dickinsonhttps://digitalcommons.ursinus.edu/grizzlynews/1347/thumbnail.jp
Two new species of the genus Cylindrophis Wagler, 1828 (Squamata: Cylindrophiidae) from Southeast Asia
No full text© 2015 Amarasinghe et al. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercialNoDerivatives 4.0 International License, which permits unrestricted use for non-commercial and education purposes only, in any medium, provided the original author and the official and authorized publication sources are recognized and properly credited. The official and authorized publication credit sources, which will be duly enforced, are as follows: official journal title Amphibian & Reptile Conservation; official journal website . The attached file is the published version of the article.NHM Repositor
- …
