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1993 Annual report on scientific programs: A broad research program on the sciences of complexity

Description: This report provides a summary of many of the research projects completed by the Santa Fe Institute (SFI) during 1993. These research efforts continue to focus on two general areas: the study of, and search for, underlying scientific principles governing complex adaptive systems, and the exploration of new theories of computation that incorporate natural mechanisms of adaptation (mutation, genetics, evolution).
Date: December 31, 1993
Partner: UNT Libraries Government Documents Department

2018 Equity and Diversity Conference: What We Talk About When We Talk About Race (Conference Cut)

Description: Video recording of the performance, What We Talk About When We Talk About Race. What We Talk About When We Talk About Race is the culmination of a year-long discussion and production process that took place between African-American and White students and professors in the Department of Communication Studies. What began as a set of informal dinners, in which they slowly, haltingly, and gradually told stories about themselves, their families, and their histories with race, has resulted in a devised production that includes personal narrative and adaptations of literature that reveal what they learned on their journey from conversations to a performance that has been collaboratively conceived, written, and directed. Among their performances, the play served as the finale for this year’s 2018 Equity and Diversity Conference. The conference cut of this performance also features Shawn Brewer of Peterbilt, the conference’s production sponsor.
Date: February 22, 2018
Creator: Hurtado-Ramos, Teresita & Brewer, Shawn
Partner: UNT College of Arts and Sciences

2018 Equity and Diversity Conference: What We Talk About When We Talk About Race (Performance)

Description: Video recording of the performance, What We Talk About When We Talk About Race. What We Talk About When We Talk About Race is the culmination of a year-long discussion and production process that took place between African-American and White students and professors in the Department of Communication Studies. What began as a set of informal dinners, in which they slowly, haltingly, and gradually told stories about themselves, their families, and their histories with race, has resulted in a devised production that includes personal narrative and adaptations of literature that reveal what they learned on their journey from conversations to a performance that has been collaboratively conceived, written, and directed. Among their performances, the play served as the finale for this year’s 2018 Equity and Diversity Conference.
Date: February 22, 2018
Partner: UNT College of Arts and Sciences

3rd African Drought Adaptation Forum report, Addis Ababa, Ethiopia, 17-19 September 2008

Description: The Third African Drought Adaptation Forum was held in September 2008 in Addis Ababa, Ethiopia. The Forum was organized so that participants could exchange practical experiences, findings and ideas on how to adapt to the increasing threat of drought and climate change in the drylands of Africa. The report contains a summary of sessions and outlines key themes that emerged from the discussions.
Date: September 2008
Creator: UNDP Drylands Development Centre; United Nations Office for Disaster Risk Reduction & Economic Commission for Africa
Partner: UNT Libraries

Adaptation of Handel's Castrato Airs for Bass: A Lecture Recital, Together with Three Recitals of Selected Works of J.S. Bach, W. Mozart, M. Ravel, G. Finzi, R. Schumann, A. Caldara, G. Handel, H. Wolf, H. Duparc, C. Ives and S. Barber and an Operatic Role by Verdi

Description: The lecture recital was given on April 18, 1977. The subject was Adaptation of Handel's Castrato Airs for Bass, and it included a discussion of conventions peculiar to Handelian opera seria, concerns regarding adaptation of Handel's castrato airs and a comparison of adaptation practices in eighteenth- and twentieth-century presentations of Handel's operas. Three coloratura castrato airs and two virtuoso bass airs were performed at the conclusion of the lecture. In addition to the lecture recital, one operatic role and three recitals of solo literature for voice, piano and chamber ensemble were publicly performed. These included the role of "Samuele" in A Masked Ball, by Verdi, performed in English on March 19, 1975 with the Opera Theatre of North Texas State University, a program presented on November 24, 1975,of solo literature for voice, piano, and chamber ensemble, including works by J. S. Bach, W. Mozart, M. Ravel and G. Finzi, a program consisting of a set of works by R. Schumann presented on June 27, 1985, and a program presented on October 28, 1985,of solo literature for voice, piano, and chamber ensemble,including works by A. Caldara, G. Handel, H. Wolf, H. Duparc, C. Ives and S. Barber.
Date: May 1986
Creator: Fern, Terry L. (Terry Lee)
Partner: UNT Libraries

Adaptation that Accelerates Development

Description: This brochure summarizes how the United Nations Development Programme promotes pro-poor and pro-growth adaptation that encourages sustainable economic development and livelihoods in the face of climate change.
Date: December 2009
Creator: United Nations Development Programme
Partner: UNT Libraries

Adapting Water Management A Primer on Coping with Climate Change

Description: This primer is intended as a guide to some of the basic issues surrounding water management from a climate change perspective. It includes information on climate change impacts on various freshwater ecosystems as well as precipitation. Also addressed is how the assessment of vulnerability should distinguish between impacts assessment, which attempts to project future biophysical and ecological changes in a deterministic manner, and vulnerability assessment, which attempts to combine an assessment of future suites of change with an assessment of the resilience of ecosystems and management institutions.
Date: March 2009
Creator: Matthews, John H. & Quesne, Tom Le
Partner: UNT Libraries

Adaptive dynamic networks as models for the immune system and autocatalytic sets

Description: A general class of network models is described that can be used to present complex adaptive systems. These models have two purposes: On a practical level they are closely based on real biological phenomena, and are intended to model detailed aspects of them. On a more general level, however, they provide a framework to address broader questions concerning evolution, pattern recognition, and other properties of living systems. This paper concentrates on the more general level, illustrating the basic concepts with two examples, a model of the immune system and a model for the spontaneous emergence of autocatalytic sets in a chemically reactive polymer soup. 10 refs., 3 figs.
Date: April 1, 1986
Creator: Farmer, J.D.; Kauffman, S.A.; Packard, N.H. & Perelson, A.S.
Partner: UNT Libraries Government Documents Department

Adaptive significance of root grafting in trees

Description: Root grafting has long been observed in forest trees but the adaptive significance of this trait has not been fully explained. Various authors have proposed that root grafting between trees contributes to mechanical support by linking adjacent root systems. Keeley proposes that this trait would be of greatest advantage in swamps where soils provide poor mechanical support. He provides as evidence a greenhouse study of Nyssa sylvatica Marsh in which seedlings of swamp provenance formed between-individual root grafts more frequently than upland provenance seedlings. In agreement with this within-species study, Keeley observed that arid zone species rarely exhibit grafts. Keeley also demonstrated that vines graft less commonly than trees, and herbs never do. Since the need for mechanical support coincides with this trend, these data seem to support his model. In this paper, the authors explore the mechanisms and ecological significance of root grafting, leading to predictions of root grafting incidence. Some observations support and some contradict the mechanical support hypothesis.
Date: December 31, 1988
Creator: Loehle, C. & Jones, R.
Partner: UNT Libraries Government Documents Department

Advanced Computational Approaches for Characterizing Stochastic Cellular Responses to Low Dose, Low Dose Rate Exposures

Description: OAK - B135 This project final report summarizes modeling research conducted in the U.S. Department of Energy (DOE), Low Dose Radiation Research Program at the Lovelace Respiratory Research Institute from October 1998 through June 2003. The modeling research described involves critically evaluating the validity of the linear nonthreshold (LNT) risk model as it relates to stochastic effects induced in cells by low doses of ionizing radiation and genotoxic chemicals. The LNT model plays a central role in low-dose risk assessment for humans. With the LNT model, any radiation (or genotoxic chemical) exposure is assumed to increase one¡¯s risk of cancer. Based on the LNT model, others have predicted tens of thousands of cancer deaths related to environmental exposure to radioactive material from nuclear accidents (e.g., Chernobyl) and fallout from nuclear weapons testing. Our research has focused on developing biologically based models that explain the shape of dose-response curves for low-dose radiation and genotoxic chemical-induced stochastic effects in cells. Understanding the shape of the dose-response curve for radiation and genotoxic chemical-induced stochastic effects in cells helps to better understand the shape of the dose-response curve for cancer induction in humans. We have used a modeling approach that facilitated model revisions over time, allowing for timely incorporation of new knowledge gained related to the biological basis for low-dose-induced stochastic effects in cells. Both deleterious (e.g., genomic instability, mutations, and neoplastic transformation) and protective (e.g., DNA repair and apoptosis) effects have been included in our modeling. Our most advanced model, NEOTRANS2, involves differing levels of genomic instability. Persistent genomic instability is presumed to be associated with nonspecific, nonlethal mutations and to increase both the risk for neoplastic transformation and for cancer occurrence. Our research results, based on applications of NEOTRANS2, indicate that nonlinear threshold-type, dose-response relationships for excess stochastic effects (problematic nonlethal mutations, ...
Date: June 27, 2003
Creator: Scott, Bobby, R.
Partner: UNT Libraries Government Documents Department

Africa Adaptation Programme: An insight into AAP and Country project Profiles

Description: The Africa Adaptation Programme (AAP) has been designed to support the long-term efforts of targeted countries to further develop their capability to successfully identify, design and implement holistic adaptation and disaster risk reduction programmes that are aligned with national development priorities. This report provides insight into the Africa Adaptation Programme (AAP) and its related country project profiles. The AAP has shifted into implementation, with Namibia and Tunisia as the first countries to complete national inception workshops. Eighteen out of the total twenty programme countries will complete national inception processes and start full-fledged implementation in the coming months.
Date: January 2010
Creator: The Africa Adaptation Programme (AAP)
Partner: UNT Libraries

Analytical Audit: Full Report

Description: This report presents an analytical audit on issues, progress and priorities in climate change by auditing current knowledge and policy choices to advise on progress and evidence; consolidating the existing analysis on UK and international climate change issues and our existing and projected emissions; presenting a balanced view of the trade-offs that Ministers face, based upon a consistent overview; and identifying priorities that Ministers may want to explore further.
Date: unknown
Creator: Great Britain. Office of Climate Change
Partner: UNT Libraries

Assessing the Costs of Climate Change and Adaptation in South Asia

Description: .This Asian Development Bank (ADB) study examined the economic costs associated with the impacts of climate change and the cost and benefits of adaptation in Bangladesh,Bhutan, India, the Maldives, Nepal, and Sri Lanka. The study aimed to (i) assess the biophysical impacts of climate change in the region, including individual country impacts, and (ii) estimate the total economic loss to the countries in the region by 2100, taking into account the different scenarios and impacts projected across vulnerable sectors, and then to estimate the magnitude of funding for adaptation measures required to avert such potential losses. Results of the study will aid development of future policies and programs for climate change adaptation in the region, including initiatives for regional cooperation and capacity building in climate change management. The study covered the following sectors: agriculture, terrestrial ecosystems, water, marine and coastal resources (except Bhutan and Nepal), health, and energy.
Date: June 1, 2014
Creator: Ahmed, Mahfuz & Suphachol Suphachalasai
Partner: UNT Libraries

The bioenergetics of salt tolerance

Description: The aim of this project was to try to understand the adaptive mechanisms that organisms develop in order to respond to a sudden transformation in their environment to a salt shock.'' To study this problem we used a fresh water oxygenic photosynthetic cyanobacterium known as Synecoccus 6311. This organism suffers injury after this sudden exposure to high concentrations of sodium chloride equivalent to or even higher than that in sea water. Yet they are able to re-establish their photosynthetic activity which is partially injured and return to virtually normal growth rates. Identification of the temporal sequence of changes involved in adaptation to this stress was the rationale. Indeed this project employed a wide variety of biochemical and biophysical methods, including electron spin resonance techniques and nuclear magnetic resonance to study the bioenergetics and transport mechanisms, growth and energy changes in these organisms and how the structural components of the cells changed in response to adaptation to growth at high salinity. The problem has relevance for higher plants because most of the arable farmland in the work is already under use and that which is not used is usually in salite environments. Hence, understanding basic mechanisms of salt tolerance is a fundamental biological problem with great applications for bioproductivity and agriculture. 18 refs.
Date: January 1, 1991
Creator: Packer, L.
Partner: UNT Libraries Government Documents Department

Biological Manipulation of Migration Rate: The Use of Advanced Photoperiod to Accelerate Smoltification in Yearling Chinook Salmon, Annual Report 1988.

Description: Research was conducted to assess the feasibility of biologically manipulating physiological development and migratory behavior of yearling spring chinook salmon, Oncorhynchus tshawytscha. At Dworshak National Fish Hatchery a treatment group was exposed to a 3-month advanced photoperiod cycle for 14 weeks preceding release. Physiological development and migratory performance of this group was compared to a control group. Changes in physiological indices indicated that exposing fish to an advanced photoperiod treatment increased the rate of smolt development. Photoperiod treatment also altered passage patterns and timing at Lower Granite Dam. 26 refs., 6 figs., 7 tabs.
Date: February 1, 1990
Creator: Giorgi, Albert E.; Muir, William D. & Zaugg, Waldo S.
Partner: UNT Libraries Government Documents Department

Biological upgrading of coal-derived synthesis gas: Final report

Description: The technical feasibility of the biological conversion of coal synthesis gas to methane has been demonstrated in the University of Arkansas laboratories. Cultures of microorganisms have been developed which achieve total conversion in the water gas shift and methanation reactions in either mixed or pure cultures. These cultures carry out these conversions at ordinary temperatures and pressures, without sulfur toxicity. Several microorganisms have been identified as having commercial potential for producing methane. These include a mixed culture of unidentified bacteria; P. productus which produces acetate, a methane precursor; and Methanothrix sp., which produces methane from acetate. These cultures have been used in mixed reactors and immobilized cell reactors to achieve total CO and H/sub 2/ conversion in a retention time of less than two hours, quite good for a biological reactor. Preliminary economic projections indicate that a biological methanation plant with a size of 5 x 10/sup 10/ Btu/day can be economically attractive. 42 refs., 26 figs., 86 tabs.
Date: October 1, 1986
Creator: Barik, S.; Johnson, E.R.; Ko, C.W.; Clausen, E.C. & Gaddy, J.L.
Partner: UNT Libraries Government Documents Department

Bioremediation demonstration on Kwajalein Island: Site characterization and on-site biotreatability studies

Description: An environmental study was conducted during February 1991 on Kwajalein Island, a US Army Kwajalein Atoll (USAKA) Base in the Republic of the Marshall Islands (RMI). This study was undertaken for the US Department of Energy (DOE) Hazardous Waste Remedial Actions Program (HAZWRAP) acting in behalf of USAKA. The purpose of the study was to determine if selected locations for new construction on Kwajalein Island were contaminated by petroleum hydrocarbons as suspected and, if so, whether bioremediation appeared to be a feasible technology for environmental restoration. Two different sites were evaluated: (1) the site planned freshwater production facility and (2) a site adjacent to an aboveground diesel fuel storage tank. Within the proposed construction zone for the freshwater production facility (a.k.a desalination plant), total petroleum hydrocarbons (TPH) where either absent or at low levels. Characterization data for another potential construction site adjacent to an aboveground diesel fuel storage tank southeast of the old diesel power plant revealed high concentrations of diesel fuel in the soil and groundwater beneath the site. Results of this investigation indicate that there are petroleum-contaminated soils on Kwajalein Island and bioremediation appears to be a viable environmental restoration technique. Further experimentation and field demonstration are required to determine the design and operating conditions that provide for optimum biodegradation and restoration of the petroleum-contaminated soils. 17 refs., 7 figs., 26 figs.
Date: September 1, 1991
Creator: Siegrist, R.L.; Korte, N.E.; Pickering, D.A. (Oak Ridge National Lab., TN (United States)) & Phelps, T.J. (Tennessee Univ., Knoxville, TN (United States))
Partner: UNT Libraries Government Documents Department

Biosynthesis of metal-binding polypeptides and their precursors in response to cadmium in Datura innoxia

Description: Metal-tolerant Datura innoxia cells synthesize large amounts of a class of metal-binding polypeptides, poly({gamma}-glutamylcysteinyl) glycines (({gamma}-EC){sub n}G, n=2-5), when exposed to Cd. These polypeptides have a high affinity for Cd (2) and certain other metal ions and are thought to play a role in metal tolerance in higher plants. ({gamma}-EC){sub n}G is biosynthetically derived from glutathione. Therefore, the response of Datura cells to Cd must include an increase in production of glutathione and its precursors, since cells rapidly accumulate very high concentrations of these metal-binding polypeptides. The biosynthesis of ({gamma}-EC){sub n}Gs, glutathione, and cysteine in response to Cd exposure is described. The physiological significance of the synthesis of these polypeptides and their precursors and its relevance to Cd tolerance and metal homeostasis are discussed. 34 refs., 6 figs., 1 tab.
Date: January 1, 1991
Creator: Jackson, P.J.; Delhaize, E. & Kuske, C.R.
Partner: UNT Libraries Government Documents Department

Biotechnology and genetic optimization of fast-growing hardwoods

Description: A biotechnology research program was initiated to develop new clones of fast-growing Populus clones resistant to the herbicide glyphosate and resistant to the leaf-spot and canker disease caused by the fungus Septoria musiva. Glyphosate-resistant callus was selected from stem segments cultured in vitro on media supplemented with the herbicide. Plants were regenerated from the glyphosate-resistant callus tissue. A portion of plants reverted to a glyphosate susceptible phenotype during organogenesis. A biologically active filtrate was prepared from S. musiva and influenced fresh weight of Populus callus tissue. Disease-resistant plants were produced through somaclonal variation when shoots developed on stem internodes cultured in vitro. Plantlets were screened for disease symptoms after spraying with a suspension of fungal spores. A frequency of 0.83 percent variant production was observed. Genetically engineered plants were produced after treatment of plant tissue with Agrobacterium tumefasciens strains carrying plasmid genes for antibiotic resistance. Transformers were selected on media enriched with the antibiotic, kanamycin. Presence of foreign DNA was confirmed by Southern blot analysis. Protoplasts of popular were produced but did not regenerate into plant organs. 145 refs., 12 figs., 36 tabs.
Date: February 1, 1991
Creator: Garton, S.; Syrkin-Wurtele, E.; Griffiths, H.; Schell, J.; Van Camp, L. & Bulka, K. (NPI, Salt Lake City, UT (United States))
Partner: UNT Libraries Government Documents Department

Body shape differences in a pair of closely related Malawi cichlids and their hybrids: Effects of genetic variation, phenotypic plasticity, and transgressive segregation

Description: This article investigates the contributions of genetic and plastic components for differences in body shape in two species of Lake Malawi cichlids using wild-caught specimens and a common garden experiment.
Date: January 28, 2017
Creator: Husemann, Martin; Tobler, Michael; McCauley, Cagney; Ding, Baoqing & Danley, Patrick D.
Partner: UNT College of Arts and Sciences

Buying Time: A User’s Manual for Building Resistance and Resilience to Climate Change in Natural Systems

Description: This publication is meant for Protected Areas Managers. It gives detailed information about assessing occurring and possible damage from climate change and fending off the damage - buying time for our protected areas while the world works out the only long-term solution - reducing CO2 emissions.
Date: August 2003
Creator: Hansen, L. J.; Biringer J.L. & Hoffman J.R.
Partner: UNT Libraries

(Carbon and hydrogen metabolism of green algae in light and dark)

Description: The focus of this project was the elucidation of anaerobic metabolism in ecuaryotic green algae, chlamydomonas reinhardii. Chlamydomonas is a versatile organism that can grow under disparate conditions such as fresh water lakes and sewage ponds. The cell an photoassimilate CO{sub 2} aerobically and anaerobically, the latter after adaptation'' to a hydrogen metabolism. It can recall the knallgas or oxyhydrogen reaction and utilize hydrogen the simplest of all reducing agents for the dark assimilation of CO{sub 2} by the photosynthetic carbon reduction cycle. The dark reduction with hydrogen lies on the border line between autotrophic and heterotrophic carbon assimilation. Both autotrophic and heterotrophic bacteria are known in which molecular hydrogen can replace either inorganic or organic hydrogen donors. Here the dark reduction of CO{sub 2} acquires a particular importance since it occurs in the same cell that carries on photoreduction and photosynthesis. We will demonstrate here that the alga chloroplast possesses a respiratory capacity. It seems likely that Chlamydomonas may have retained the chloroplastic respiratory pathway because of the selective advantage provided to the algae under a wide range of environmental conditions that the cells experience in nature. The ability to cycle electrons and poise the reduction level of the photosynthetic apparatus under aerobic and microaerobic conditions could allow more efficient CO{sub 2} fixation and enhanced growth under unfavorable conditions or survival under more severe conditions.
Date: January 1, 1990
Partner: UNT Libraries Government Documents Department