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Sample records for aethina tumida murray

  1. Boron and Coumaphos Residues in Hive Materials Following Treatments for the Control of Aethina tumida Murray.

    PubMed

    Valdovinos-Flores, Cesar; Gaspar-Ramírez, Octavio; Heras-Ramírez, María Elena; Lara-Álvarez, Carlos; Dorantes-Ugalde, José Antonio; Saldaña-Loza, Luz María

    2016-01-01

    In the search of alternatives for controlling Aethina tumida Murray, we recently proposed the BAA trap which uses boric acid and an attractant which mimics the process of fermentation caused by Kodamaea ohmeri in the hive. This yeast is excreted in the feces of A. tumida causing the fermentation of pollen and honey of infested hives and releasing compounds that function as aggregation pheromones to A. tumida. Since the boron is the toxic element in boric acid, the aim of this article is to assess the amount of boron residues in honey and beeswax from hives treated with the BAA trap. For this aim, the amount of bioaccumulated boron in products of untreated hives was first determined and then compared with the amount of boron of products from hives treated with the BAA trap in two distinct climatic and soil conditions. The study was conducted in the cities of Padilla, Tamaulipas, and Valladolid, Yucatan (Mexico) from August 2014 to March 2015. The quantity of boron in honey was significantly less in Yucatan than in Tamaulipas; this agrees with the boron deficiency among Luvisol and Leptosol soils found in Yucatan compared to the Vertisol soil found in Tamaulipas. In fact, the honey from Yucatan has lower boron levels than those reported in the literature. The BAA treatment was applied for four months, results show that the BAA trap does not have any residual effect in either honey or wax; i.e., there is no significant difference in boron content before and after treatment. On the other hand, the organophosphate pesticide coumaphos was found in 100% of wax samples and in 64% of honey samples collected from Yucatan. The concentration of coumaphos in honey ranges from 0.005 to 0.040 mg/kg, which are below Maximum Residue Limit (MRL) allowed in the European Union (0.1 mg/kg) but 7.14% of samples exceeded the MRL allowed in Canada (0.02 mg/kg).

  2. Boron and Coumaphos Residues in Hive Materials Following Treatments for the Control of Aethina tumida Murray

    PubMed Central

    Valdovinos-Flores, Cesar; Gaspar-Ramírez, Octavio; Heras–Ramírez, María Elena; Dorantes-Ugalde, José Antonio; Saldaña-Loza, Luz María

    2016-01-01

    In the search of alternatives for controlling Aethina tumida Murray, we recently proposed the BAA trap which uses boric acid and an attractant which mimics the process of fermentation caused by Kodamaea ohmeri in the hive. This yeast is excreted in the feces of A. tumida causing the fermentation of pollen and honey of infested hives and releasing compounds that function as aggregation pheromones to A. tumida. Since the boron is the toxic element in boric acid, the aim of this article is to assess the amount of boron residues in honey and beeswax from hives treated with the BAA trap. For this aim, the amount of bioaccumulated boron in products of untreated hives was first determined and then compared with the amount of boron of products from hives treated with the BAA trap in two distinct climatic and soil conditions. The study was conducted in the cities of Padilla, Tamaulipas, and Valladolid, Yucatan (Mexico) from August 2014 to March 2015. The quantity of boron in honey was significantly less in Yucatan than in Tamaulipas; this agrees with the boron deficiency among Luvisol and Leptosol soils found in Yucatan compared to the Vertisol soil found in Tamaulipas. In fact, the honey from Yucatan has lower boron levels than those reported in the literature. The BAA treatment was applied for four months, results show that the BAA trap does not have any residual effect in either honey or wax; i.e., there is no significant difference in boron content before and after treatment. On the other hand, the organophosphate pesticide coumaphos was found in 100% of wax samples and in 64% of honey samples collected from Yucatan. The concentration of coumaphos in honey ranges from 0.005 to 0.040 mg/kg, which are below Maximum Residue Limit (MRL) allowed in the European Union (0.1 mg/kg) but 7.14% of samples exceeded the MRL allowed in Canada (0.02 mg/kg). PMID:27092938

  3. Radiobiology of Aethina tumida and prospects for management using sterile insect releases

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Small hive beetle (SHB), Aethina tumida Murray (Coleoptera: Nitidulidae) is considered a serious threat to beekeeping in the Western Hemisphere, Australia, and Europe mainly due to larval feeding on honey, pollen, and brood of the European honeybee, Apis mellifera. Control methods are limited for th...

  4. Trapping of Aethina tumida Murray (Coleoptera: Nitidulidae) from Apis mellifera L. (Hymenoptera: Apidae) colonies with an in-hive baited trap.

    PubMed

    Torto, Baldwyn; Arbogast, Richard T; Van Engelsdorp, Dennis; Willms, Steven; Purcell, Dusti; Boucias, Drion; Tumlinson, James H; Teal, Peter E A

    2007-10-01

    The effectiveness of two lures for trapping the small hive beetle, Aethina tumida, by means of in-hive traps was tested by field trials in apiaries located in Florida, Delaware, and Pennsylvania during 2003-2005. Both lures included a mixture (pollen dough) consisting of bee pollen and commercial pollen substitute formulated with or without glycerol and honey. Before it was used in the traps, the dough was conditioned either by the feeding of adult small hive beetles or by inoculation with the yeast Kodamaea ohmeri (NRRL Y-30722). Traps baited with conditioned dough captured significantly more beetles than unbaited traps, and traps positioned under the bottom board of a hive captured significantly more beetles than traps located at the top of a hive. In fact, baited in-hive bottom board traps nearly eliminated the beetles from colonies at a pollination site in Florida. However, when these honey bee colonies were moved to an apiary, trap catch increased markedly over time, indicating a resurgence of the beetle population produced by immigration of beetles from nearby hives or emerging from the soil. In tests at three Florida apiaries during 2006, yeast-inoculated dough baited bottom board traps captured significantly more beetles than unbaited traps, showing the effectiveness of yeast-inoculated dough as a lure and its potential as a tool in managing the small hive beetle.

  5. Aethina tumida (Coleoptera: Nitidulidae) and Oplostomus haroldi (Coleoptera: Scarabaeidae): Occurrence in Kenya, Distribution within Honey Bee Colonies, and Response to Host Odors

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Aethina tumida Murray is considered a minor parasitic pest of African honey bee colonies, but little information is available on other coleopteran pests. We surveyed for A. tumida and other beetles in honey bee colonies at four major beekeeping locations: Watamu, Chawia-Taita, Matuu, and Nairobi in...

  6. Development of a pheromone-based trapping system for the small hive beetle, Aethina tumida (Coleoptera: Nitidulidae)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The small hive beetle, Aethina tumida Murray is a European honey bee (Apis mellifera L, Hymenoptera: Apidae) pest that can be destructive to honey bee colonies, causing damage to comb, stored honey and pollen (Hepburn and Radloff 1998). Although not a direct cause of Colony Collapse Disorder (CCD)...

  7. Intraspecific competition effects on Aethina tumida (Coleoptera: Nitidulidae)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Two kinds of experiments were conducted with larvae of Aethina tumida over a four temperatures: “consumption” experiments, in which larvae and diet were weighed to determine food consumption rates under conditions of unlimited food and few conspecifics; and “competition” experiments in which varying...

  8. The effects of diet, mating duration , female to male ratios and temperature on ovary activation, mating success and fecundity of Aethina tumida

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The effects of natural diet, mating and temperature on the ovary activation and fecundity of small hive beetles (SHB) Aethina tumida Murray were studied. The natural diets evaluated were brood, pollen, honey and their various combinations. Duration of mating (1 day versus 2 days), ratio of female (F...

  9. Effect of height and color on the efficiency of pole traps for Aethina tumida (Coleoptera: Nitidulidae).

    PubMed

    De Guzman, Lilia I; Frake, Amanda M; Rinderer, Thomas E; Arbogast, Richard T

    2011-02-01

    Olfactory cues released by adult bees, brood, pollen, and honey from a honey bee, Apis mellifera L., colony are the primary stimuli that guide the beetle Aethina tumida Murray (Coleoptera: Nitidulidae) to host colonies. To investigate the response of adult A. tumida to visual stimuli, we tested the influence of color and height on trap efficiency. Two pole trap colors (black and white) were evaluated at three heights (46 cm, 1 m, and 3m) from October 2008 to December 2009. A. tumida were trapped in the greatest numbers between 17 April and 15 May 2009. The lowest numbers were captured during the winter and fall. The trapping results showed that both color and trap height significantly influenced capture. The average catch in the white traps (mean +/- SE, 2.47 +/- 0.30) was significantly higher than that of the black traps (1.53 +/- 0.29) probably because white is more reflective than black. Among the heights evaluated, there were more beetles caught when traps were positioned at 46 cm (the same height as the entrance of the hives) with 3.07 +/- 0.51 beetles compared with beetles captured at 1 m (1.88 +/- 0.30) or 3 m (1.06 +/- 0.18) high. Male and female beetles exhibited similar responses to trap color and height. The relationship between the numbers of beetles in colonies and capture rates in traps was very poor and did not provide a basis to evaluate trap efficiency. In addition, because capture rates seemed generally low in relationship to the number of beetles in the apiary, substantial improvements to the trap may be necessary.

  10. Age and aggregation trigger mating behavior in the small hive beetle, Aethina tumida

    Technology Transfer Automated Retrieval System (TEKTRAN)

    This study aimed to investigate the previously poorly documented reproductive behaviour of the small hive beetle, Aethina tumida (Nitidulidae), a honey bee (Apis mellifera) parasite. We observed and described the mating behavior in detail, and tested the hypothesis that beetle aggregation plays a vi...

  11. Estimating reproductive success of Aethina tumida (Coleoptera: Nitidulidae) in honey bee colonies by trapping emigrating larvae.

    PubMed

    Arbogast, Richard T; Torto, Baldwyn; Willms, Steve; Fombong, Ayuka T; Duehl, Adrian; Teal, Peter E A

    2012-02-01

    The small hive beetle (Aethina tumida Murray) is a scavenger and facultative predator in honey bee colonies, where it feeds on pollen, honey, and bee brood. Although a minor problem in its native Africa, it is an invasive pest of honey bees in the United States and Australia. Adult beetles enter bee hives to oviposit and feed. Larval development occurs within the hive, but mature larvae leave the hive to pupate in soil. The numbers leaving, which can be estimated by trapping, measure the reproductive success of adult beetles in the hive over any given period of time. We describe a trap designed to intercept mature larvae as they reach the end of the bottom board on their way to the ground. Trap efficiency was estimated by releasing groups of 100 larvae into empty brood boxes and counting the numbers trapped. Some larvae escaped, but mean efficiency ranged from 87.2 to 94.2%. We envision the trap as a research tool for study of beetle population dynamics, and we used it to track numbers of larvae leaving active hives for pupation in the soil. The traps detected large increases and then decreases in numbers of larvae leaving colonies that weakened and died. They also detected small numbers of larvae leaving strong European and African colonies, even when no larvae were observed in the hives.

  12. Pupal development of Aethina tumida (Coleoptera: Nitidulidae) in thermo-hygrometric soil conditions encountered in temperate climates.

    PubMed

    Bernier, M; Fournier, V; Giovenazzo, P

    2014-04-01

    The pupal development of Aethina tumida Murray (Coleoptera: Nitidulidae) was studied at various combinations of thermo-hygrometric soil conditions (temperatures of 16, 18, and 20 degrees C and soil water content levels of 0.37, 0.56, and 0.73 m3 water per cubic meter of dry soil) representative of southeastern Canada. Survivorship and development duration of A. tumida pupae, as well as sex ratio and life span of emerging adults, were assessed. Assays were conducted in growth chambers on an average of 50 third-instar larvae per thermo-hygrometric combination. Results show that survivorship of pupae decreased with lower temperature and higher soil water content. Pupal development time shortened as temperature increased (69-78 d at 16 degrees C, 47-54 d at 18 degrees C, and 36-39 d at 20 degrees C), but was longer in dryer soil. Optimal soil water content for pupal development was 0.56 m3 water per cubic meter of soil. We estimated that the minimum development temperature for pupae is between 10.2 and 13.2 degrees C, depending on soil water content. The sex ratio of emerging adults was influenced by soil water content. We measured one female to one male for dry and intermediately wet soils and three females to one male for wet soils. Higher soil water content reduced the life span of emerging adults by half. This study contributes to a better understanding of A. tumida population dynamics in eastern Canada.

  13. Transcriptomic and functional resources for the Small Hive Beetle Aethina tumida, a worldwide parasite of honey bees

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The small hive beetle (SHB), Aethina tumida, is a major pest of managed honey bee (Apis mellifera) colonies in the United States and Australia, and an emergent threat in Europe. While strong honey bee colonies generally keep SHB populations in check, weak or stressed colonies can succumb to infestat...

  14. Response of the small hive beetle (Aethina tumida) to a blend of chemicals identified from honeybee (Apis mellifera) volatiles

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Coupled gas chromatographic-electroantennographic detection (GC-EAD) analyses of Super Q collected worker honey bee volatiles revealed several components that elicited antennal responses by the small hive beetle Aethina tumida. However, GC-MS analysis showed that eight of these EAD-active components...

  15. Monitoring Aethina tumida (Coleoptera: Nitidulidae) with baited bottom board traps: occurrence and seasonal abundance in honey bee colonies in Kenya.

    PubMed

    Torto, Baldwyn; Fombong, Ayuka T; Arbogast, Richard T; Teal, Peter E A

    2010-12-01

    The population dynamics of the honey bee pest Aethina tumida Murray (small hive beetle) have been studied in the United States with flight and Langstroth hive bottom board traps baited with pollen dough inoculated with a yeast Kodamaea ohmeri associated with the beetle. However, little is known about the population dynamics of the beetle in its native host range. Similarly baited Langstroth hive bottom board traps were used to monitor the occurrence and seasonal abundance of the beetle in honey bee colonies at two beekeeping locations in Kenya. Trap captures indicated that the beetle was present in honey bee colonies in low numbers all year round, but it was most abundant during the rainy season, with over 80% trapped during this period. The survival of larvae was tested in field releases under dry and wet soil conditions, and predators of larvae were identified. The actvity and survival of the beetle were strongly influenced by a combination of abiotic and biotic factors. Larval survival was higher during wet (28%) than dry (1.1%) conditions, with pupation occurring mostly at 0-15 cm and 11-20 cm, respectively, beneath the surface soil during these periods. The ant Pheidole megacephala was identified as a key predator of larvae at this site, and more active during the dry than wet seasons. These observations imply that intensive trapping during the rainy season could reduce the population of beetles infesting hives in subsequent seasons especially in places where the beetle is a serious pest.

  16. Age and aggregation trigger mating behaviour in the small hive beetle, Aethina tumida (Nitidulidae)

    NASA Astrophysics Data System (ADS)

    Mustafa, Sandra G.; Spooner-Hart, Robert; Duncan, Michael; Pettis, Jeffery S.; Steidle, Johannes L. M.; Rosenkranz, Peter

    2015-10-01

    This study aimed to investigate the poorly documented reproductive behaviour of the small hive beetle, Aethina tumida (Nitidulidae), a honey bee ( Apis mellifera) parasite. We described the mating behaviour in detail and tested the hypothesis that beetle aggregation plays a vital role in mating in this species. Gender preference was examined in the context of age-dependency and possible chemical communication. Beetles started mating at a high frequency 18 days after emergence from the soil but only if they were aggregated ( p < 0.001); mating was infrequent when beetles were paired. Males in aggregation also tried to copulate with males and only copulated more frequently with females at 18 days after emergence from soil ( p < 0.001) in contrast to newly emerged, 7-day-old and 60-day-old beetles. Males and females spent more time in social contact with the opposite sex ( p < 0.01) when they were 18 days old in contrast to 7-day-old beetles. Filter papers which had been in contact with 21-day-old beetles were highly attractive to similar-aged beetles of the opposite sex ( p < 0.01). This suggests that chemical substances produced by the beetles themselves play a role in mating. Mating behaviour was characterised by a short pre-copulation courtship and female aggression towards other females and copulating couples. Both behaviours may be indicative of cryptic female choice. Delayed onset of reproductive behaviour is typical of many polygamous species, whilst the indispensability of aggregation for onset of sexual behaviour seems to be a feature unique to A. tumida. Both strategies support mass reproduction in this parasitic species, enabling A. tumida to overcome its honey bee host colony, and are probably triggered by chemotactic cues.

  17. Age and aggregation trigger mating behaviour in the small hive beetle, Aethina tumida (Nitidulidae).

    PubMed

    Mustafa, Sandra G; Spooner-Hart, Robert; Duncan, Michael; Pettis, Jeffery S; Steidle, Johannes L M; Rosenkranz, Peter

    2015-10-01

    This study aimed to investigate the poorly documented reproductive behaviour of the small hive beetle, Aethina tumida (Nitidulidae), a honey bee (Apis mellifera) parasite. We described the mating behaviour in detail and tested the hypothesis that beetle aggregation plays a vital role in mating in this species. Gender preference was examined in the context of age-dependency and possible chemical communication. Beetles started mating at a high frequency 18 days after emergence from the soil but only if they were aggregated (p < 0.001); mating was infrequent when beetles were paired. Males in aggregation also tried to copulate with males and only copulated more frequently with females at 18 days after emergence from soil (p < 0.001) in contrast to newly emerged, 7-day-old and 60-day-old beetles. Males and females spent more time in social contact with the opposite sex (p < 0.01) when they were 18 days old in contrast to 7-day-old beetles. Filter papers which had been in contact with 21-day-old beetles were highly attractive to similar-aged beetles of the opposite sex (p < 0.01). This suggests that chemical substances produced by the beetles themselves play a role in mating. Mating behaviour was characterised by a short pre-copulation courtship and female aggression towards other females and copulating couples. Both behaviours may be indicative of cryptic female choice. Delayed onset of reproductive behaviour is typical of many polygamous species, whilst the indispensability of aggregation for onset of sexual behaviour seems to be a feature unique to A. tumida. Both strategies support mass reproduction in this parasitic species, enabling A. tumida to overcome its honey bee host colony, and are probably triggered by chemotactic cues..

  18. Efficacy of modified hive entrances and a bottom screen device for controlling Aethina tumida (Coleoptera: Nitidulidae) infestations in Apis mellifera (Hymenoptera: Apidae) colonies.

    PubMed

    Ellis, James D; Delaplane, Keith S; Hepburn, Randall; Elzen, Patti J

    2003-12-01

    This study was designed to test whether hive entrances reduced with polyvinyl chloride pipe reduce the ingress of Aethina tumida Murray into Apis mellifera L. colonies and whether screen-mesh bottom boards alleviate side effects associated with restricted entrances. Forty-eight colonies distributed equally between two locations each received one of six experimental treatments: 1) conventional solid bottom board and open entrance, 2) ventilated bottom board and open entrance, 3) conventional bottom and 1.9-cm-i.d. pipe entrance, 4) conventional bottom and 3.8-cm pipe entrance, 5) screen bottom and 1.9-cm pipe entrance, and 6) screen bottom and 3.8-cm pipe entrance. Results were inconsistent between apiaries. In apiary 1, colonies with 3.8-cm pipe entrances had fewer A. tuzmida than colonies with open entrances, but this benefit was not apparent in apiary 2. Pipe entrances tended to reduce colony and brood production in both apiaries, and these losses were only partly mitigated with the addition of screened bottom boards. Pipe entrances had no measurable liability concerning colony thermoregulation. There were significantly fewer frames of adult A. mellifera in colonies with 3.8- or 1.9-cm pipe entrances compared with open entrances but more in colonies with screens. There were more frames of pollen in colonies with open or 3.8-cm pipe entrances than 1.9-cm entrances. We conclude that the efficacy of reduced hive entrances in reducing ingress of A. tumida remains uncertain due to observed differences between apiaries. Furthermore, there were side effects associated with restricted entrances that could be only partly mitigated with screened bottom boards.

  19. Organic acids and thymol: unsuitable alternative control of Aethina tumida Murray (Coleoptera: Nitidulidae)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    To explore alternative small hive beetle control strategies, established Varroa destructor and Galleria mellonella treatments with organic acids (formic, lactic, oxalic and acetic) and thymol were investigated in the laboratory against eggs, larvae and adult small hive beetle (SHB). As formic and ox...

  20. Evaluation of the efficacy of small hive beetle (Aethina tumida Murray) baits and lures.

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Two experiments were conducted to evaluate the attractiveness of a lure developed by the Food and Environment Research Agency (=UK lure) to adult small hive beetles (SHB). Experiment 1 compared the UK lure with: USDA fermented pollen dough, banana scent, apple cider and their combinations while Exp...

  1. Molecular characterization and pathogenicity of fungal isolates for use against the small hive beetle (Aethina tumida)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The analysis of DNA sequences from fungal pathogens obtained from cadavers of the small hive beetle (SHB) collected from several apiaries in Florida revealed a mixture of saprobes and two potential primary entomopathogens, Metarhizium anisopliae and Beauveria bassiana. Spray tower bioassays indicate...

  2. Joseph Murray as mentor.

    PubMed

    Harken, Alden Hood

    2013-01-01

    The purpose of this manuscript is to scan Dr Murray's Nobel Laureate lecture for strategies of creating a productive, creative, cohesive, and indeed even cost-effective academic department of surgery and medical center. I will detail the elements of Dr Murray's lecture that highlight "ideas" as ultimately more valuable tools in recruiting and retaining franchise surgeons than a big salary and a prominent parking space.

  3. Monitoring the small hive beetle, Aethina tumida (Coleoptera:Nitidulidae), with baited flight traps: effect of distance from bee hives and shade on the numbers of beetles captured

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The small hive beetle is a native of Africa where it is considered a minor pest of honey bees, and until recently it was thought to be limited to that continent. However, it was detected in Florida in 1998, and by 2004, it had spread to 30 states. It now poses a major threat to the beekeeping indu...

  4. Murray and the Omega Minus

    SciTech Connect

    Samios, N.P.

    2010-08-20

    The exciting findings and activities in particle physics in the 50's and 60's will be discussed from an experimentalist's viewpoint. Particular emphasis will be placed on the description of several crucial discoveries (including the omega minus) and on the remarkable insight, guidance, and major contributions of Murray Gell-Mann to the understanding of the symmetry of hadrons which led to the development of the standard model of the strong interactions.

  5. Murray and the Omega Minus

    NASA Astrophysics Data System (ADS)

    Samios, Nicholas P.

    The exciting findings and activities in particle physics in the 50's and 60's will be discussed from an experimentalist's viewpoint. Particular emphasis will be placed on the description of several crucial discoveries (including the omega minus) and on the remarkable insight, guidance, and major contributions of Murray Gell-Mann to the understanding of the symmetry of hadrons which led to the development of the standard model of the strong interactions.

  6. Murray and the Omega Minus

    NASA Astrophysics Data System (ADS)

    Samios, Nicholas P.

    2011-11-01

    The exciting findings and activities in particle physics in the 50's and 60's will be discussed from an experimentalist's viewpoint. Particular emphasis will be placed on the description of several crucial discoveries (including the omega minus) and on the remarkable insight, guidance, and major contributions of Murray Gell-Mann to the understanding of the symmetry of hadrons which led to the development of the standard model of the strong interactions.

  7. Elwood Murray: Pioneering Methodologist in Communication

    ERIC Educational Resources Information Center

    Brownell, Judi

    2014-01-01

    Elwood Murray (1897-1988) was a pioneer in communication education. Beginning in the 1930s, he applied nontraditional methods in the speech classroom to encourage students to internalize and apply what they learned, and to view knowledge holistically. Drawing on the work of Kunkel, Moreno, Lewin, and Korzybski, Murray focused on developing skills…

  8. Murray Gell-Mann -- a Scientific Biography

    NASA Astrophysics Data System (ADS)

    Fritzsch, Harald

    2011-11-01

    Murray Gell-Mann is one of the most outstanding scientists of the last century. At this conference on the occasion of his 80th birthday, the important scientific achievements of Gell-Mann will be discussed. I shall describe in particular his contributions to particle physics. Murray's father Arthur Gell-Mann grew up in Czernowitz, a city once belongs to the Austrian empire. Today, Czernowitz belongs to the Ukraine. Arthur Gell-Mann studied in Vienna and came to the United States in 1911. He lived and worked in New York, where he became the owner of a language school and married Pauline Reichstein...

  9. Straight talk with...Christopher Murray.

    PubMed

    Schubert, Charlotte

    2009-10-01

    Hard numbers can be difficult to come by in the current debate about health care in the US. Even rarer are accurate assessments of health care systems in less developed countries. But policy makers are not completely groping in the dark when it comes to data-thanks in part to Christopher Murray. Two years ago, Murray, a physician and health economist with experience at the World Health Organization (WHO), took the helm of the newly created Institute for Health Metrics and Evaluation at the University of Washington. Since 2007, the institute, funded largely by the Bill & Melinda Gates Foundation and the state of Washington, has grown to a staff of 75 people and has begun churning out studies that that are shaping the debate on health care reform. For instance, Murray's group-along with colleagues at his former base, Harvard University in Cambridge, Massachusetts-have documented huge disparities in life expectancy and mortality in parts of the US. In some pockets of the country, life expectancy for women is even on the decline (PLoS Med. 27, e66; 2008). Murray spoke with Charlotte Schubert about how having accurate numbers can add up to progress in health care.

  10. Water transport in plants obeys Murray's law.

    PubMed

    McCulloh, Katherine A; Sperry, John S; Adler, Frederick R

    2003-02-27

    The optimal water transport system in plants should maximize hydraulic conductance (which is proportional to photosynthesis) for a given investment in transport tissue. To investigate how this optimum may be achieved, we have performed computer simulations of the hydraulic conductance of a branched transport system. Here we show that the optimum network is not achieved by the commonly assumed pipe model of plant form, or its antecedent, da Vinci's rule. In these representations, the number and area of xylem conduits is constant at every branch rank. Instead, the optimum network has a minimum number of wide conduits at the base that feed an increasing number of narrower conduits distally. This follows from the application of Murray's law, which predicts the optimal taper of blood vessels in the cardiovascular system. Our measurements of plant xylem indicate that these conduits conform to the Murray's law optimum as long as they do not function additionally as supports for the plant body.

  11. Report card--Murray-Darling Basin--2001.

    PubMed

    Goss, K

    2002-01-01

    Ongoing deterioration of the riverine environments of the Murray-Darling Basin led the Murray-Darling Basin Ministerial Council to introduce a Cap in 1995 to halt the growth in diversions of water for consumptive use. This initiative recognised the finite nature of water resources in the Basin and sought to introduce a balance between off-stream use of water and protection of the riverine environment. But the cap is only one step, albeit a fundamental one, in restoring the Basin's rivers--it is a "stake in the ground". Parties to the Murray-Darling Basin Initiative recognise the need to reverse decades of creeping decline if the Basin's rivers and riverine environments are to return to a more ecologically sustainable condition. In the last 12 months, Council and Commission have taken far-reaching decisions designed to restore the Basin's Rivers. Many of these decisions, even 10 years ago, would have been unimaginable. The Report Card will explain the need for a number of recent decisions that will impact on the future of the Basin's rivers. For example, Council's decision to establish an Environmental Manager function in the Office of the Commission was made in the context of the recently agreed Integrated Catchment Management (ICM) Policy, and supporting Sustainable Rivers Audit. The role of targets and accountabilities under the ICM Policy will also be discussed. The Report Card will also present a snapshot of the state of the Basin's rivers and the actions being taken at a range of scales and locations in response to identified problems. Because some of the key initiatives are still in development, this Report Card will set the scene by describing where our attention is being focused and why.

  12. Aloneness and the Complicated Selves of Donald M. Murray

    ERIC Educational Resources Information Center

    Stewart, Thomas J.

    2011-01-01

    This article examines Donald M. Murray's ideas about what he considered the essential solitude of all writing and what happens within that solitude. Murray, a pioneer of the process and modern expressivism movements in composition, identified a number of forces that he felt were at work within his mind whenever he wrote; this complicated aloneness…

  13. Conference Teaching: A Response to Donald M. Murray

    ERIC Educational Resources Information Center

    Athanasourelis, John Paul

    2006-01-01

    This instructional note describes the successful application and adaptation of teacher-student conference techniques as suggested by Donald M. Murray in his book "A Writer Teaches Writing." Athanasourelis states that while he believes that Murray overestimates students' abilities when he describes the conference process as "the working talk of…

  14. Interview with Dr Joseph Murray (by Francis L Delmonico).

    PubMed

    Murray, Joseph

    2002-10-01

    The Editors asked Dr Delmonico to interview Dr Joseph Murray, winner of the Nobel prize in Medicine 1990 for performing the first successful renal transplant, to record recollections of the issues of the 1950s, when clinical transplantation was born, on Dr Murray's medical career in transplantation, and on some contemporary issues.

  15. 7. Historic American Buildings Survey, John T. Murray, Photographer, May ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Historic American Buildings Survey, John T. Murray, Photographer, May 6, 1936. DETAIL OF HOIST IN ATTIC. - Fort Smith, Commissary Building, 100 South Garrison Avenue, Fort Smith, Sebastian County, AR

  16. 6. Historic American Buildings Survey, John T. Murray, Photographer, May ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. Historic American Buildings Survey, John T. Murray, Photographer, May 6, 1936. TYPICAL FIRST FLOOR FIREPLACE, NORTHWEST WALL. - Fort Smith, Commissary Building, 100 South Garrison Avenue, Fort Smith, Sebastian County, AR

  17. A double commutant theorem for Murray-von Neumann algebras.

    PubMed

    Liu, Zhe

    2012-05-15

    Murray-von Neumann algebras are algebras of operators affiliated with finite von Neumann algebras. In this article, we study commutativity and affiliation of self-adjoint operators (possibly unbounded). We show that a maximal abelian self-adjoint subalgebra A of the Murray-von Neumann algebra A(f)(R) associated with a finite von Neumann algebra R is the Murray-von Neumann algebra A(f)(A(0)), where A(0) is a maximal abelian self-adjoint subalgebra of R and, in addition, A(0) is A Π R. We also prove that the Murray-von Neumann algebra A(f)(C) with C the center of R is the center of the Murray-von Neumann algebra A(f)(R). Von Neumann's celebrated double commutant theorem characterizes von Neumann algebras R as those for which R'' = R, where R', the commutant of R, is the set of bounded operators on the Hilbert space that commute with all operators in R. At the end of this article, we present a double commutant theorem for Murray-von Neumann algebras.

  18. Revisiting diagenesis on the Ontong Java Plateau: Evidence for authigenic crust precipitation in Globorotalia tumida

    NASA Astrophysics Data System (ADS)

    Branson, Oscar; Read, Elizabeth; Redfern, Simon A. T.; Rau, Christoph; Elderfield, Henry

    2015-11-01

    The calcite tests of foraminifera lie in marine sediments for thousands to millions of years, before being analyzed to generate trace element and isotope paleoproxy records. These sediments constitute a distinct physio-chemical environment from the conditions in which the tests formed. Storage in sediments can modify the trace element and isotopic content of foraminiferal calcite through diagenetic alteration, which has the potential to confound their paleoceanographic interpretation. A previous study of Globorotalia tumida from the Ontong Java Plateau, western equatorial Pacific, found that preferential dissolution of higher-Mg chamber calcite and the preservation of a low-Mg crust on the tests significantly reduced whole-test Mg/Ca and Sr/Ca. Here we revisit specimens with a combination of synchrotron X-ray computed tomography (sXCT) and electron probe microanalyses to reevaluate the nature of their diagenetic alteration. The dissolution of higher-Mg calcite with depth was directly observed in the sXCT data, confirming the inference of the previous study. The sXCT data further reveal a thickening of the chemically and structurally distinct calcite crust with depth. We propose that these crusts have a diagenetic origin, driven by the simultaneous dissolution of high-Mg chamber calcite and precipitation of low-Mg crust from the resulting modified pore water solution. While the breadth of the study is limited by the nature of the techniques, the observation of both dissolution and reprecipitation of foraminiferal calcite serves to demonstrate the action of two simultaneous diagenetic alteration processes, with significant impacts on the resulting paleoproxy signals.

  19. Bio-inspired Murray materials for mass transfer and activity.

    PubMed

    Zheng, Xianfeng; Shen, Guofang; Wang, Chao; Li, Yu; Dunphy, Darren; Hasan, Tawfique; Brinker, C Jeffrey; Su, Bao-Lian

    2017-04-06

    Both plants and animals possess analogous tissues containing hierarchical networks of pores, with pore size ratios that have evolved to maximize mass transport and rates of reactions. The underlying physical principles of this optimized hierarchical design are embodied in Murray's law. However, we are yet to realize the benefit of mimicking nature's Murray networks in synthetic materials due to the challenges in fabricating vascularized structures. Here we emulate optimum natural systems following Murray's law using a bottom-up approach. Such bio-inspired materials, whose pore sizes decrease across multiple scales and finally terminate in size-invariant units like plant stems, leaf veins and vascular and respiratory systems provide hierarchical branching and precise diameter ratios for connecting multi-scale pores from macro to micro levels. Our Murray material mimics enable highly enhanced mass exchange and transfer in liquid-solid, gas-solid and electrochemical reactions and exhibit enhanced performance in photocatalysis, gas sensing and as Li-ion battery electrodes.

  20. Reconsiderations: Donald Murray and the Pedagogy of Surprise

    ERIC Educational Resources Information Center

    Ballenger, Bruce

    2008-01-01

    Toward the end of his life, Donald Murray felt that his approach to writing instruction was no longer appreciated by journals in his field. Nevertheless, his emphasis on encouraging students to surprise themselves through informal writing still has considerable value. (Contains 1 note.)

  1. Diagenesis in the Murray Formation, Gale Crater, Mars

    NASA Technical Reports Server (NTRS)

    Rampe, E. B.; Ming, D. W.; Morris, R. V.; Blake, D. F.; Bristow, T. F.; Chipera. S. J.; Vaniman, D. T.; Yen, A. S.; Grotzinger, J. P.; Downs, R. T.; Des Marais, D. J.

    2016-01-01

    The Mars Science Laboratory (MSL) Curiosity rover began investigating the rocks of Mt. Sharp in September 2014. The Murray formation is the lowermost unit, which is mostly comprised of finely laminated mudstones, suggesting these sediments were deposited in a lacustrine environment. It is important to characterize the geochemical and mineralogical trends throughout the Murray Fm to interpret the aqueous conditions of the ancient lake, the sources of the lake sediments, and post-depositional alteration processes. Four samples have been drilled from the Murray Fm so far: Confidence Hills, Mojave 2, and Telegraph Peak were collected from the Pahrump Hills member - the basal portion of the Murray Fm, and Buckskin was collected in the Marias Pass region (Fig. 1). The drill fines were delivered to the instruments inside the rover, including the CheMin instrument, a combination X-ray diffractometer and X-ray fluorescence spectrometer. Rietveld refinements and FULLPAT analyses of 1D CheMin XRD patterns were performed to determine quantitative abundances of minerals and amor-phous phases and the unit cell parameters of minerals present in abundances greater than 4-5 wt.%.

  2. McMurray Test: A Prediction of Arthroscopic Meniscectomy Outcomes in Patients with Knee Osteoarthritis.

    PubMed

    Ji, Cheng; Lin, Xiangjin; Zhu, Liulong; Li, Min

    2015-05-01

    The McMurray test is used to evaluate patients with meniscal tears of the knee. Analysis of the sensitivity and specificity of McMurray test and the correlation between McMurray sign and postoperative outcomes are helpful to screen the candidates for arthroscopic meniscectomy. The present study compares the results of McMurray test with arthroscopic examination in patients with knee osteoarthritis. We studied 149 patients diagnosed as meniscal lesion with osteoarthritis by radiology and had arthroscopic surgery. Our data show that positive McMurray sign implies good postoperative outcomes for the patients with meniscal tear associated with osteoarthritis. For patients with osteoarthritis, those whose positive McMurray signs are in line with their radiological findings indicate they are eligible candidates for arthroscopic meniscectomy. Our study suggests that McMurray sign can be used as an indication for both symptomatic meniscal tear and postoperative outcomes.

  3. Water reform in the Murray-Darling Basin

    NASA Astrophysics Data System (ADS)

    Connell, Daniel; Grafton, R. Quentin

    2011-12-01

    In Australia's Murray-Darling Basin the Australian and state governments are attempting to introduce a system of water management that will halt ongoing decline in environmental conditions and resource security and provide a robust foundation for managing climate change. This parallels similar efforts being undertaken in regions such as southern Africa, the southern United States, and Spain. Central to the project is the Australian government's Water Act 2007, which requires the preparation of a comprehensive basin plan expected to be finalized in 2011. This paper places recent and expected developments occurring as part of this process in their historical context and examines factors that could affect implementation. Significant challenges to the success of the basin plan include human resource constraints, legislative tensions within the Australian federal system, difficulties in coordinating the network of water-related agencies in the six jurisdictions with responsibilities in the Murray-Darling Basin, and social, economic, and environmental limitations that restrict policy implementation.

  4. Lake Murray, Fly and Strickland River Basins, Papua, New Guinea

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Lake Murray, a manmade reservoir, lies between the Fly and Strickland River Basins, Papua, New Guinea (7.0S, 141.5E). The region, photographed in sunglint, shows the water level in the reservoir and the full extent of the drainage basins of both river systems as the rivers meander through wide alluvial floodplains. Some forest clearing can be seen in places throughout the region, but most of the area remains in closed canopy forest.

  5. Sources of dissolved salts in the central Murray Basin, Australia

    USGS Publications Warehouse

    Jones, B.F.; Hanor, J.S.; Evans, W.R.

    1994-01-01

    Large areas of the Australian continent contain scattered saline lakes underlain by shallow saline groundwaters of regional extent and debated origin. The normative salt composition of subsurface pore fluids extracted by squeezing cores collected during deep drilling at Piangil West 2 in the central Murray Basin in southeastern Australia, and of surface and shallow subsurface brines produced by subaerial evaporation in the nearby Lake Tyrrell systems, helps constrain interpretation of the origin of dissolved solutes in the groundwaters of this part of the continent. Although regional sedimentation in the Murray Basin has been dominantly continental except for a marine transgression in Oligocene-Pliocene time, most of the solutes in saline surface and subsurface waters in the central Murray Basin have a distinctly marine character. Some of the Tyrrell waters, to the southwest of Piangil West 2, show the increase in NaCl and decrease in sulfate salts expected with evaporative concentration and gypsum precipitation in an ephemeral saline lake or playa environment. The salt norms for most of the subsurface saline waters at Piangil West 2 are compatible with the dilution of variably fractionated marine bitterns slightly depleted in sodium salts, similar to the more evolved brines at Lake Tyrrell, which have recharged downward after evaporation at the surface and then dissolved a variable amount of gypsum at depth. Apparently over the last 0.5 Ma significant quantities of marine salt have been blown into the Murray Basin as aerosols which have subsequently been leached into shallow regional groundwater systems basin-wide, and have been transported laterally into areas of large evaporative loss in the central part of the basin. This origin for the solutes helps explain why the isotopic compositions of most of the subsurface saline waters at Piangil West 2 have a strong meteoric signature, whereas the dissolved salts in these waters appear similar to a marine assemblage

  6. Variability in Small Hive Beetle (Coleoptera: Nitidulidae) Reproduction in Laboratory and Field Experiments.

    PubMed

    Meikle, William G; Holst, Niels; Cook, Steven C; Patt, Joseph M

    2015-06-01

    Experiments were conducted to examine how several key factors affect population growth of the small hive beetle, Aethina tumida Murray (Coleoptera: Nitidulidae). Laboratory experiments were conducted to examine effects of food quantity and temperature on reproduction of cohorts of young A. tumida adults (1:1 sex ratio) housed in experimental arenas. Daily numbers and total mass of larvae exiting arenas were highly variable within treatment. Either one or two cohorts of larvae were observed exiting the arenas. Food quantity, either 10 g or 20 g, did not significantly affect the number of larvae exiting arenas at 32°C, but did at 28°C; arenas provided 20 g food produced significantly more larvae than arenas provided 10 g. Temperature did not affect the total mass of larvae provided 10 g food, but did affect larval mass provided 20 g; beetles kept at 28°C produced more larval mass than at 32°C. Field experiments were conducted to examine A. tumida reproductive success in full strength bee colonies. Beetles were introduced into hives as egg-infested frames and as adults, and some bee colonies were artificially weakened through removal of sealed brood. Efforts were unsuccessful; no larvae were observed exiting from, or during the inspection of, any hives. Possible reasons for these results are discussed. The variability observed in A. tumida reproduction even in controlled laboratory conditions and the difficulty in causing beetle infestations in field experiments involving full colonies suggest that accurately forecasting the A. tumida severity in such colonies will be difficult.

  7. Environmental flows and water quality objectives for the River Murray.

    PubMed

    Gippel, C; Jacobs, T; McLeod, T

    2002-01-01

    Over the past decade, there intense consideration of managing flows in the River Murray to provide environmental benefits. In 1990 the Murray-Darling Basin Ministerial Council adopted a water quality policy: To maintain and, where necessary, improve existing water quality in the rivers of the Murray-Darling Basin for all beneficial uses - agricultural, environmental, urban, industrial and recreational, and in 1994 a flow policy: To maintain and where necessary improve existing flow regimes in the waterways of the Murray-Darling Basin to protect and enhance the riverine environment. The Audit of Water Use followed in 1995, culminating in the decision of the Ministerial Council to implement an interim cap on new diversions for consumptive use (the "Cap") in a bid to halt declining river health. In March 1999 the Environmental Flows and Water Quality Objectives for the River Murray Project (the Project) was set up, primarily to establish be developed that aims to achieve a sustainable river environment and water quality, in accordance with community needs, and including an adaptive approach to management and operation of the River. It will lead to objectives for water quality and environmental flows that are feasible, appropriate, have the support of the scientific, management and stakeholder communities, and carry acceptable levels of risk. This paper describes four key aspects of the process being undertaken to determine the objectives, and design the flow options that will meet those objectives: establishment of an appropriate technical, advisory and administrative framework; establishing clear evidence for regulation impacts; undergoing assessment of environmental flow needs; and filling knowledge gaps. A review of the impacts of flow regulation on the health of the River Murray revealed evidence for decline, but the case for flow regulation as the main cause is circumstantial or uncertain. This is to be expected, because the decline of the River Murray results

  8. 52. The Murray Motors Building on the right (101 South ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    52. The Murray Motors Building on the right (101 South Colorado) is a one story building with a full basement for automobile storage. It has pest and beam construction, and has been altered only slightly. Both street facades have low, stepped gables. Beyond it, is the Parisian Dye House (56-60 West Galena), built in 1891 to house the Paumie Cleaners. The building still has its original cast-iron storefront on the ground floor as well as the original pressed-tin ceiling and woodwork inside. Metal window sills and lintles have been painted. - Butte Historic District, Bounded by Copper, Arizona, Mercury & Continental Streets, Butte, Silver Bow County, MT

  9. Needs (Murray, 1938) and state-variables (Skinner, 1938).

    PubMed

    Meehl, P E

    1992-04-01

    Skinner's concept of drive as a state-variable and his powerful rationale for introducing it agree closely with Murray's treatment of need. Operant behaviorists' usual deprecation of motivation in favor of stimulus control arises partly from features of parameters, insufficiently explored in some regions, of Skinner box research. For human adults on rich reinforcement schedules, response selection is chiefly controlled by the regnant motive. Skinner's life-long interest in inner events and translating psychodynamic concepts into behaviorese was obscured by his metalanguage philosophy of science (behaviorism).

  10. Standard methods for small hive beetle research

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Small hive beetles, Aethina tumida, are parasites and scavengers of honey bee and other social bee colonies native to sub-Saharan Africa, where they are a minor pest only. In contrast, the beetles can be harmful parasites of European honey bee subspecies. Very rapidly after A. tumida established pop...

  11. An interview with Murray Jackson by Jan Wiener.

    PubMed

    Jackson, Murray

    2011-04-01

    Murray Jackson was among the early trainees at the Society of Analytical Psychology (SAP) drawn to Jungian ideas during the 1950s when the training was still relatively informal. He was born in Australia where he became a doctor and came to London to study psychiatry with a particular interest in psychosis. He was influenced by Michael Fordham with whom he had an analysis and his four papers, published in the Journal of Analytical Psychology in the early 1960s, contributed significantly to the growing interest in clinical technique, particularly transference, that developed in the Society at that time. Later, he retrained at the British Institute of Psychoanalysis in the Kleinian tradition and was the first consultant at the Maudsley Hospital to run a 10-bed unit for severely mentally ill patients applying psychoanalytic principles. In April 2010, Jan Wiener interviewed Murray Jackson in France, where he now lives in retirement, about his interest and subsequent disappointment in Jungian ideas as well as his involvement with the Society of Analytical Psychology at a particular point in its history. After a brief introduction, the interview is reproduced in full.

  12. Bob McMurray: Award for Distinguished Scientific Early Career Contributions to Psychology

    ERIC Educational Resources Information Center

    American Psychologist, 2012

    2012-01-01

    Presents a short biography of one of the winners of the American Psychological Association's Award for Distinguished Scientific Early Career Contributions to Psychology. The 2012 winner is Bob McMurray for pioneering research on speech and language processing in infants and adults. McMurray has conducted influential work on the graded nature of…

  13. The Murray Springs Clovis site, Pleistocene extinction, and the question of extraterrestrial impact.

    PubMed

    Haynes, C Vance; Boerner, J; Domanik, K; Lauretta, D; Ballenger, J; Goreva, J

    2010-03-02

    Some of the evidence for the recent hypothesis of an extraterrestrial impact that caused late Pleistocene megafaunal extinctions [Firestone et al. (2007) Proc Natl Acad Sci USA 104:16016-16021] was based upon samples collected at Murray Springs, a Clovis archaeological site in southeastern Arizona. Here we describe sampling and analyses of magnetic separates from within, above, and below the lower Younger Dryas boundary (LYDB) black mat at Murray Springs, as well as radiation measurements from the LYDB at Murray Springs and two other well-stratified Clovis sites. The main magnetic fraction at Murray Springs is maghemite. Magnetic microspherules have terrestrial origins but also occur as cosmic dust particles. We failed to find iridium or radiation anomalies. The evidence for massive biomass burning at Murray Springs is addressed and found to be lacking. We could not substantiate some of the claims by Firestone and others, but our findings do not preclude a terminal Pleistocene cosmic event.

  14. Diagenetic Crystal Growth in the Murray Formation, Gale Crater, Mars

    NASA Technical Reports Server (NTRS)

    Kah, L. C.; Kronyak, R. E.; Ming, D. W.; Grotzinger, J. P.; Schieber, J.; Sumner, D. Y.; Edgett, K. S.

    2015-01-01

    The Pahrump region (Gale Crater, Mars) marks a critical transition between sedimentary environments dominated by alluvial-to-fluvial materials associated with the Gale crater rim, and depositional environments fundamentally linked to the crater's central mound, Mount Sharp. At Pahrump, the Murray formation consists of an approximately 14-meter thick succession dominated by massive to finely laminated mudstone with occasional interbeds of cross-bedded sandstone, and is best interpreted as a dominantly lacustrine environment containing tongues of prograding fluvial material. Murray formation mudstones contain abundant evidence for early diagenetic mineral precipitation and its subsequent removal by later diagenetic processes. Lenticular mineral growth is particularly common within lacustrine mudstone deposits at the Pahrump locality. High-resolution MAHLI images taken by the Curiosity rover permit detailed morphological and spatial analysis of these features. Millimeter-scale lenticular features occur in massive to well-laminated mudstone lithologies and are interpreted as pseudomorphs after calcium sulfate. The distribution and orientation of lenticular features suggests deposition at or near the sediment-water (or sediment-air) interface. Retention of chemical signals similar to host rock suggests that original precipitation was likely poikilotopic, incorporating substantial amounts of the primary matrix. Although poikilotopic crystal growth is common in burial environments, it also occurs during early diagenetic crystal growth within unlithified sediment where high rates of crystal growth are common. Loss of original calcium sulfate mineralogy suggests dissolution by mildly acidic, later-diagenetic fluids. As with lenticular voids observed at Meridiani by the Opportunity Rover, these features indicate that calcium sulfate deposition may have been widespread on early Mars; dissolution of depositional and early diagenetic minerals is a likely source for both calcium

  15. Geologic map of the Murray Quadrangle, Newton County, Arkansas

    USGS Publications Warehouse

    Hudson, Mark R.; Turner, Kenzie J.

    2016-07-06

    This map summarizes the geology of the Murray quadrangle in the Ozark Plateaus region of northern Arkansas. Geologically, the area is on the southern flank of the Ozark dome, an uplift that has the oldest rocks exposed at its center, in Missouri. Physiographically, the Murray quadrangle is within the Boston Mountains, a high plateau region underlain by Pennsylvanian sandstones and shales. Valleys of the Buffalo River and Little Buffalo River and their tributaries expose an approximately 1,600-ft-thick (488-meter-thick) sequence of Ordovician, Mississippian, and Pennsylvanian carbonate and clastic sedimentary rocks that have been mildly deformed by a series of faults and folds. The Buffalo National River, a park that encompasses the Buffalo River and adjacent land that is administered by the National Park Service is present at the northwestern edge of the quadrangle.Mapping for this study was carried out by field inspection of numerous sites and was compiled as a 1:24,000 geographic information system (GIS) database. Locations and elevation of sites were determined with the aid of a global positioning satellite receiver and a hand-held barometric altimeter that was frequently recalibrated at points of known elevation. Hill-shade relief and slope maps derived from a U.S. Geological Survey 10-meter digital elevation model as well as orthophotographs were used to help trace ledge-forming units between field traverses within the Upper Mississippian and Pennsylvanian part of the stratigraphic sequence. Strike and dip of beds were typically measured along stream drainages or at well-exposed ledges. Structure contours, constructed on the top of the Boone Formation and the base of a prominent sandstone unit within the Bloyd Formation, were drawn based on the elevations of field sites on these contacts well as other limiting information for their minimum elevations above hilltops or their maximum elevations below valley bottoms.

  16. Murray secretion scale and fiberoptic endoscopic evaluation of swallowing in predicting aspiration in dysphagic patients.

    PubMed

    Kuo, Chia-Wei; Allen, Clint Tanner; Huang, Chu-Chun; Lee, Chia-Jung

    2017-03-12

    The objective of this retrospective review is to evaluate the ability of the Murray secretion scale to predict aspiration as determined by fiberoptic endoscopic evaluation of swallowing. Patients with dysphagia undergoing a fiberoptic endoscopic evaluation of swallowing study between January 2013 and November 2015 from a single, tertiary care institution were retrospectively reviewed. The Murray secretion scale and penetration aspiration scale on fiberoptic endoscopic evaluation of swallowing examination were determined. Spearman's correlation analysis, sensitivity, specificity, predictive values, and relative risk evaluating the relationship between the Murray secretion scale and aspiration on fiberoptic endoscopic evaluation of swallowing were calculated. Subgroups of head and neck cancer patients, penetration group, and aspiration group were also analyzed. The mean age of the cases (N = 212) was 62.4 years. Eighty percent were male. There was a strong correlation between Murray secretion scale grade and penetration aspiration scale score (r = 0.785, p < 0.001). The sensitivity and specificity of a Murray secretion scale grade 2 or higher in predicting aspiration were 74 and 90%, respectively. Individuals with a Murray secretion scale grade of 2 or higher were 13.6 times more likely to aspirate than patients with a lower Murray secretion scale grade. All subgroups showed similar trend. Determination of a Murray secretion scale grade, determined by flexible nasopharyngoscopy, may predict patients at high risk for aspiration. In clinical scenarios where more complete assessments of aspiration risk are immediately impossible or impractical, the Murray secretion scale grade may add valuable information to assist in clinical decision-making in patients with dysphagia.

  17. Integrated assessment of wastewater treatment plant effluent estrogenicity in the Upper Murray River, Australia, using the native Murray rainbowfish (Melanotaenia fluviatilis)

    USGS Publications Warehouse

    Vajda, Alan M.; Kumar, Anupama; Woods, Marianne; Williams, Mike; Doan, Hai; Tolsher, Peter; Kookana, Rai S.; Barber, Larry B.

    2016-01-01

    The contamination of major continental river systems by endocrine-active chemicals (EACs) derived from the discharge of wastewater treatment plant (WWTP) effluents can affect human and ecosystem health. As part of a long-term effort to develop a native fish model organism for assessment of endocrine disruption in Australia's largest watershed, the Murray-Darling River Basin, the present study evaluated endocrine disruption in adult males of the native Australian Murray rainbowfish (Melanotaenia fluviatilis) exposed to effluent from an activated sludge WWTP and water from the Murray River during a 28-d, continuous-flow, on-site experiment. Analysis of the WWTP effluent and river water detected estrone and 17β-estradiol at concentrations up to approximately 25 ng L−1. Anti-estrogenicity of effluent samples was detected in vitro using yeast-based bioassays (yeast estrogen screen) throughout the experiment, but estrogenicity was limited to the first week of the experiment. Histological evaluation of the testes indicated significant suppression of spermatogenesis by WWTP effluent after 28 d of exposure. Plasma vitellogenin concentrations and expression of vitellogenin messenger RNA in liver were not significantly affected by exposure to WWTP effluent. The combination of low contaminant concentrations in the WWTP effluent, limited endocrine disrupting effects in the Murray rainbowfish, and high in-stream dilution factors (>99%) suggest minimal endocrine disruption impacts on native Australian fish in the Murray River downstream from the WWTP outfall. 

  18. Integrated assessment of wastewater treatment plant effluent estrogenicity in the Upper Murray River, Australia, using the native Murray rainbowfish (Melanotaenia fluviatilis).

    PubMed

    Vajda, Alan M; Kumar, Anupama; Woods, Marianne; Williams, Mike; Doan, Hai; Tolsher, Peter; Kookana, Rai S; Barber, Larry B

    2015-05-01

    The contamination of major continental river systems by endocrine-active chemicals (EACs) derived from the discharge of wastewater treatment plant (WWTP) effluents can affect human and ecosystem health. As part of a long-term effort to develop a native fish model organism for assessment of endocrine disruption in Australia's largest watershed, the Murray-Darling River Basin, the present study evaluated endocrine disruption in adult males of the native Australian Murray rainbowfish (Melanotaenia fluviatilis) exposed to effluent from an activated sludge WWTP and water from the Murray River during a 28-d, continuous-flow, on-site experiment. Analysis of the WWTP effluent and river water detected estrone and 17β-estradiol at concentrations up to approximately 25 ng L(-1) . Anti-estrogenicity of effluent samples was detected in vitro using yeast-based bioassays (yeast estrogen screen) throughout the experiment, but estrogenicity was limited to the first week of the experiment. Histological evaluation of the testes indicated significant suppression of spermatogenesis by WWTP effluent after 28 d of exposure. Plasma vitellogenin concentrations and expression of vitellogenin messenger RNA in liver were not significantly affected by exposure to WWTP effluent. The combination of low contaminant concentrations in the WWTP effluent, limited endocrine disrupting effects in the Murray rainbowfish, and high in-stream dilution factors (>99%) suggest minimal endocrine disruption impacts on native Australian fish in the Murray River downstream from the WWTP outfall.

  19. On Murray Jackson's 1961 'Chair, couch and countertransference'.

    PubMed

    Connolly, Angela

    2015-09-01

    One of the problems facing psychoanalysts of all schools is that theory has evolved at a much faster pace than practice. Whereas there has been an explosion of theory, practice has remained, at least officially, static and unchanging. It is in this sense that Murray Jackson's 1961 paper is still relevant today. Despite the rise of the new relational and intersubjective paradigms, most psychoanalysts, and not a few Jungian analysts, still seem to feel that the couch is an essential component of the analytical setting and process. If the use of the couch is usually justified by the argument that it favours regression, facilitates analytical reverie and protects the patient from the influence of the analyst, over time many important psychoanalysts have come to challenge this position. Increasingly these analysts suggest that the use of the couch may actually be incompatible with the newer theoretical models. This contention is strengthened by some of the findings coming from the neurosciences and infant research. This underlines the necessity of empirical research to verify the clinical effectiveness of these different positions, couch or face-to-face, but it is exactly this type of research that is lacking.

  20. Source of shallow Simpson Group Oil in Murray County, Oklahoma

    SciTech Connect

    Zemmels, I.; Tappmeyer, D.M.; Walters, C.C. )

    1987-02-01

    Oils produced from the Simpson Group (Middle Ordovician) in three shallow fields located north of the Arbuckle Mountains in Murray County, Oklahoma, have widely differing compositions: SW Sandy Creek, 28.9{degree} API, 0.57% sulfur; Davis NE, 25.9{degree} API, 0.72% sulfur; Sulfur NW, 16.4{degree} API, 1.44% sulfur. From gas chromatography and biomarker analysis, they determined that the oils were derived from the same source and that the differences in composition are due to biodegradation of the oils in the shallow reservoirs. A comparison of the biomarker assemblage of the Simpson Group oils to several other oils produced in the Arbuckle Mountain area showed that the Simpson Group assemblage highly resembled the assemblage of a Woodford Formation oil (Devonian) but had no similarity to a Viola Formation oil (upper Middle Ordovician). The Simpson Group oils also differed markedly from an oil produced from the Arbuckle Group (Lower Ordovician) in the nearby, shallow Southeast Hoover field. Their data suggest that the source of the shallow Simpson Group oils is the Woodford Formation located in the downthrown Mill Creek syncline south and west of these fields. A large vertical migration along faults or within the fault block is implied by this geometry. However, the Arbuckle Group oil from the Southeast Hoover field, south of the syncline, has a different source.

  1. Authigenesis/Diagenesis of the Murray Formation Mudstone in Gale Crater, Mars

    NASA Technical Reports Server (NTRS)

    Ming, D. W.; Rampe, E. B.; Grotzinger, J. P.; Hurowitz, J. A.; Morris, R. V.; Yen, A. S.; Blake, D. B.; Geller, R.; Sutter, B.

    2016-01-01

    The Mars Science Laboratory rover Curiosity has been exploring sedimentary deposits in Gale crater since August, 2012. The rover has traversed up section through approximately 150 m of sedimentary rocks deposited in fluvial, deltaic, and lacustrine environments (Bradbury group and overlying Mount Sharp group). The Murray formation lies at the base of the Mt. Sharp group and has been interpreted to be a finely laminated mudstone likely deposited in a subaqueous lacustrine environment. Four drill samples from several elevations in the Murray fm have been acquired by the rover's sampling system and delivered to the CheMin XRD instrument. The lower section of the Murray fm contains 2:1 phyllosilicate(s), hematite, jarosite, XRD amorphous materials, and primary basaltic minerals. Further up section, the Murray fm contains magnetite, cristobalite, tridymite, abundant Si-rich XRD amorphous materials along with plagioclase and K-feldspars. Murray formation materials appear to have been altered under an open hydrologic system based on the bulk chemistry of these materials measured by the Alpha Particle X-ray Spectrometer (APXS). The 2:1 phyllosilicate only occurs in the lowermost section of the Murray fm and may be detrital or formed during authigenesis of Murray fm materials, similar to the Fe-saponite and magnetite detected in a mudstone in the Yellowknife Bay fm near Curiosity's landing site (stratigraphically at the base of the Bradbury group). The occurrence of jarosite and hematite in the lower section indicates an acidic diagenetic event. These phases may have formed via several acidic alteration mechanisms, including (1) oxidative weathering of mafic igneous rocks containing sulfides; (2) sulfuric acid weathering of Fe-bearing phases; and (3) near-neutral pH subsurface solutions rich in Fe2(+) that were rapidly oxidized to Fe3(+), which produced excess acidity. The transition from abundant hematite in the lowermost Murray fm to magnetite moving up section may

  2. Who's your mama? Riverine hybridisation of threatened freshwater Trout Cod and Murray Cod.

    PubMed

    Couch, Alan J; Unmack, Peter J; Dyer, Fiona J; Lintermans, Mark

    2016-01-01

    Rates of hybridization and introgression are increasing dramatically worldwide because of translocations, restocking of organisms and habitat modifications; thus, determining whether hybridization is occuring after reintroducing extirpated congeneric species is commensurately important for conservation. Restocking programs are sometimes criticized because of the genetic consequences of hatchery-bred fish breeding with wild populations. These concerns are important to conservation restocking programs, including those from the Australian freshwater fish family, Percichthyidae. Two of the better known Australian Percichthyidae are the Murray Cod, Maccullochella peelii and Trout Cod, Maccullochella macquariensis which were formerly widespread over the Murray Darling Basin. In much of the Murrumbidgee River, Trout Cod and Murray Cod were sympatric until the late 1970s when Trout Cod were extirpated. Here we use genetic single nucleotide polymorphism (SNP) data together with mitochondrial sequences to examine hybridization and introgression between Murray Cod and Trout Cod in the upper Murrumbidgee River and consider implications for restocking programs. We have confirmed restocked riverine Trout Cod reproducing, but only as inter-specific matings, in the wild. We detected hybrid Trout Cod-Murray Cod in the Upper Murrumbidgee, recording the first hybrid larvae in the wild. Although hybrid larvae, juveniles and adults have been recorded in hatcheries and impoundments, and hybrid adults have been recorded in rivers previously, this is the first time fertile F1 have been recorded in a wild riverine population. The F1 backcrosses with Murray cod have also been found to be fertile. All backcrosses noted were with pure Murray Cod. Such introgression has not been recorded previously in these two species, and the imbalance in hybridization direction may have important implications for restocking programs.

  3. Who’s your mama? Riverine hybridisation of threatened freshwater Trout Cod and Murray Cod

    PubMed Central

    Unmack, Peter J.; Dyer, Fiona J.; Lintermans, Mark

    2016-01-01

    Rates of hybridization and introgression are increasing dramatically worldwide because of translocations, restocking of organisms and habitat modifications; thus, determining whether hybridization is occuring after reintroducing extirpated congeneric species is commensurately important for conservation. Restocking programs are sometimes criticized because of the genetic consequences of hatchery-bred fish breeding with wild populations. These concerns are important to conservation restocking programs, including those from the Australian freshwater fish family, Percichthyidae. Two of the better known Australian Percichthyidae are the Murray Cod, Maccullochella peelii and Trout Cod, Maccullochella macquariensis which were formerly widespread over the Murray Darling Basin. In much of the Murrumbidgee River, Trout Cod and Murray Cod were sympatric until the late 1970s when Trout Cod were extirpated. Here we use genetic single nucleotide polymorphism (SNP) data together with mitochondrial sequences to examine hybridization and introgression between Murray Cod and Trout Cod in the upper Murrumbidgee River and consider implications for restocking programs. We have confirmed restocked riverine Trout Cod reproducing, but only as inter-specific matings, in the wild. We detected hybrid Trout Cod–Murray Cod in the Upper Murrumbidgee, recording the first hybrid larvae in the wild. Although hybrid larvae, juveniles and adults have been recorded in hatcheries and impoundments, and hybrid adults have been recorded in rivers previously, this is the first time fertile F1 have been recorded in a wild riverine population. The F1 backcrosses with Murray cod have also been found to be fertile. All backcrosses noted were with pure Murray Cod. Such introgression has not been recorded previously in these two species, and the imbalance in hybridization direction may have important implications for restocking programs. PMID:27812407

  4. Comparative analysis of some essential amino acids and available lysine in Acacia colei and A. tumida seeds using chemical methods and an amino acid analyzer.

    PubMed

    Falade, Olumuyiwa S; Adewusi, Steve R A

    2013-01-01

    Methionine, cysteine, tryptophan, and available lysine were determined in Acacia colei and A. tumida seeds and some cereals using chemical methods, and the results were compared to those obtained using an amino acid analyzer. Ba(OH)2 hydrolysis gave the best result of the three methods of hydrolysis (acid, base, and enzyme) tried. Oxidized methionine, cysteine, and tryptophan were not detected, but S-carboxyethylcysteine was estimated as cysteine by the chemical methods, thus overestimating cysteine's content in Acacia seeds. Tryptophan and methionine were higher in cereals than in Acacia seeds, while the level of cysteine and available lysine was higher in Acacia seeds than in cereals. These results agreed with values obtained using the amino acid analyzer and could therefore be used in low budget laboratories.

  5. Rodlet cells in Murray cod, Maccullochella peelii peelii (Mitchell), affected with chronic ulcerative dermatopathy.

    PubMed

    Schultz, A G; Jones, P L; Toop, T

    2014-03-01

    We have previously identified an unknown cell type in the gills of Murray cod affected with chronic ulcerative dermatopathy (CUD), a condition that causes severe erosion of epidermis surrounding cephalic and lateral line sensory canals. The condition arises in aquaculture facilities that utilize groundwater, with the cause of the condition suggested to be an unknown contaminant(s). Light and transmission electron microscopy were used to characterize and quantify the unknown cells in CUD-affected Murray cod. The cells were identified as rodlet cells and were characterized by their oval or round shape, basally located nucleus, thick fibrillar capsule surrounding the cell, and multiple rodlet sacs containing a central electron-dense core within the cell. Rodlet cells were present in the gills, kidney and intestine of non-CUD-affected and CUD-affected Murray cod; however, differences in the numbers were observed between the groups of fish. A significantly greater number of rodlet cells were observed in the gills and collecting ducts of CUD-affected fish. This is the first report of rodlet cells in Murray cod, and we suggest that the increased rodlet cell numbers in CUD-affected Murray cod may be in response to unknown water contaminant(s) present in the groundwater that give rise to CUD.

  6. A computational reproduction of Murray's law using surrogate-based design optimization

    NASA Astrophysics Data System (ADS)

    Marsden, Alison

    2008-11-01

    Murray's law describes the optimal relationship between the radius of a parent and daughter blood vessel in a bifurcation. In his 1926 paper, Murray determined the optimal radius and angle via an analytical optimization problem in which the cost function was the sum of a pressure loss term and a metabolic cost term. In this work, we present a computational investigation of Murray's law using derivative-free optimization and a 3-D finite element Navier-Stokes solver. The optimization method relies on Kriging surrogates and mesh adaptive direct search (MADS). The bifurcation geometry is parameterized so that the parent and daughter radii and bifurcation angle are optimized simultaneously. This framework also avoids the need for a steady Poiseuille flow assumption, as in Murray's original work. We will present results using a range of metabolic parameter values, illustrating the trade-off between energy dissipation and vessel size. These results demonstrate that Murray's solution can be reproduced with a particular choice of metabolic parameter (Taber, Biophys J., 1998). In addition, we will explore the effect of using a pulsatile inflow condition on the optimal solution. Finally, we will discuss the potential for broad impact of optimization methods in a range of cardiovascular design problems.

  7. Education for Personal Life: John MacMurray on Why Learning to Be Human Requires Emotional Discipline

    ERIC Educational Resources Information Center

    MacAllister, James

    2014-01-01

    In this article I discuss the philosophy of John MacMurray, and in particular, his little-examined writings on discipline and emotion education. It is argued that discipline is a vital element in the emotion education MacMurray thought central to learning to be human, because for him it takes concerted effort to overcome the human tendency toward…

  8. 76 FR 30152 - East Calloway County Middle School Mercury Spill Site, Murray, Calloway County, KY; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-24

    ... AGENCY East Calloway County Middle School Mercury Spill Site, Murray, Calloway County, KY; Notice of... response costs concerning the East Calloway County Middle School Mercury Spill Site located in Murray... Site name East Calloway County ] Middle School Mercury Spill Site by one of the following methods:...

  9. Canoeing the Murray River (Australia) as Environmental Education: A Tale of Two Rivers

    ERIC Educational Resources Information Center

    Stewart, Alistair

    2004-01-01

    The Murray River, lying at the heart of Australia's largest catchment, is used extensively in outdoor education programs in south-eastern Australia. Since European settlement the river's ecological health has declined considerably due to activities such as damming for irrigation and clearing of native vegetation. Colonial notions of how the river…

  10. Fatal Infection with Murray Valley Encephalitis Virus Imported from Australia to Canada, 2011

    PubMed Central

    Niven, Daniel J.; Afra, Kevin; Iftinca, Mircea; Tellier, Raymond; Fonseca, Kevin; Kramer, Andreas; Safronetz, David; Holloway, Kimberly; Drebot, Michael

    2017-01-01

    Murray Valley encephalitis virus (MVEV), a flavivirus belonging to the Japanese encephalitis serogroup, can cause severe clinical manifestations in humans. We report a fatal case of MVEV infection in a young woman who returned from Australia to Canada. The differential diagnosis for travel-associated encephalitis should include MVEV, particularly during outbreak years. PMID:28098530

  11. 33 CFR 110.72c - Lake Murray, S.C.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... ANCHORAGE REGULATIONS Special Anchorage Areas § 110.72c Lake Murray, S.C. (a) The area beginning at the 125 foot pier of the Columbia Sailing Club, approximately latitude 34°03′51″ N., longitude 81°13′37″...

  12. 33 CFR 110.72c - Lake Murray, S.C.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... ANCHORAGE REGULATIONS Special Anchorage Areas § 110.72c Lake Murray, S.C. (a) The area beginning at the 125 foot pier of the Columbia Sailing Club, approximately latitude 34°03′51″ N., longitude 81°13′37″...

  13. IQ and Stratification: An Empirical Evaluation of Herrnstein and Murray's Social Change Argument.

    ERIC Educational Resources Information Center

    Tittle, Charles R.; Rotolo, Thomas

    2000-01-01

    In "The Bell Curve," Herrnstein and Murray contend that intelligence has become increasingly important in social stratification, as society places a growing premium on cognitive skills. In contrast, analysis of interstate variation in the link between IQ and income shows that the link is stronger in states that use IQ-like examinations…

  14. The Power of Context: The Portrait of Dido Elizabeth Belle Lindsay and Lady Elizabeth Murray

    ERIC Educational Resources Information Center

    Card, Jane

    2015-01-01

    Drawing on her wealth of experience and expertise in using visual sources in the classroom, in this article Jane Card explores how a single painting, a portrait of Dido Elizabeth Belle Lindsay and her cousin Lady Elizabeth Murray, might form the basis for a sequence of lessons. Arguing that although highly accessible, images are not…

  15. Decolonizing Encounters with the Murray River: Building Place Responsive Outdoor Education

    ERIC Educational Resources Information Center

    Stewart, Alistair

    2004-01-01

    How Australians experience a place such as the Murray River has been extensively shaped by our colonial heritage. Colonial notions of how the river ought to behave and be utilised have contributed to the transformation of the river physically, ecologically and culturally. Colonisation has also left behind an intellectual legacy in the way…

  16. Utilizing Strategic Assessment to Support FYC Curricular Revision at Murray State University

    ERIC Educational Resources Information Center

    Walker, Paul; Myers, Elizabeth

    2011-01-01

    The first-year composition requirement at Murray State University was revised in 2008 from a 6-credit-hour, two-semester sequence to a 4-credit-hour, one-semester course. The revision overtly emphasizes critical reading, writing, and inquiry, while addressing the realities of the institution's resources for teaching first-year composition. This…

  17. The Lower Murray River's Mannum Muds: A Holocene Age Lacustrine Deposit In A Bedrock Gorge

    NASA Astrophysics Data System (ADS)

    Hubble, T.; De Carli, E.; Clarke, S. L.; Penny, D.; Hamilton, R. J.; Petley, D. N.; Gadd, P.

    2014-12-01

    Middle to Late Holocene age, horizontally laminated clays and muds of lacustrine origin predominate the uppermost layers of the valley-fill sequence deposited in the lower Murray River's bedrock gorge upstream of the set of lakes which separate Australia's largest river system, The Murray-Darling, from its discharge point to the Southern Ocean. The top surface of the Coonambidgal Formation muds is developed at a constant elevation approximately coincident with the Holocene sea-level maximum and the mud deposit thins progressively in thickness upstream from ~30 m to ~10 m over a distance of 150 km due to a gradual, upstream rise in the elevation of the unit's base. Radiocarbon ages for wood and charcoal fragments recovered from two cores indicates the uppermost four to five metres of these muds were deposited after the mid-Holocene sea-level maximum, at below sea-level elevations indicating that the discharge of the Murray-Darling fluvial system was contained and effectively dammed by an obstruction developed downstream of Lake Alexandrina where the present-day river mouth is located. This feature is suspected to be the precursor of the present-day dune and beach-barrier system which occasionally blocks the river mouth and diverts fresh-water flow into the Coorong Wetlands. Muddy sediment from the entire Murray-Darling catchment was effectively trapped in the lower Murray Gorge palaeolake, herein named Lake Mannum, during the mid to late Holocene. High rates of sedimentation (one to two meters per thousand years) produced exquisitely fine-scaled (1 mm to 1 cm) laminations in the upper Coonambidgal Formation. This material has not been disturbed by bioturbation and presents a sediment record with the potential to yield a high-resolution record of the Murray-Darling catchment's discharge for much of the Holocene. The present-day lower Murray River channel currently presents a meandering but constant planform geometry upstream of Lake Alexandrina that developed as a

  18. Riverbank Collapse on the lower Murray River: recent phenomenon or long-term geomorphic process?

    NASA Astrophysics Data System (ADS)

    De Carli, E.; Hubble, T.; Jaksa, M.; Clarke, S. L.; Airey, D.; O'Toole, J.; Carpenter, G.

    2013-12-01

    The lower Murray River connects the Murray-Darling River Basin to the Southern Ocean and drains 14% of Australia's landmass. During the Millennium Drought (1997-2011) record low inflows for the Basin were recorded and the lower Murray River received only 19% of its long-term average inflow for 2008-2009, causing the pool-level in the lowermost reaches near Goolwa to fall 1 m below sea level. This event triggered widespread mass failure in the alluvial river banks and ground subsidence in some river-adjacent floodplain deposits between Blanchetown and Lake Alexandrina. Multi-beam bathymetry, sediment core and geotechnical data are presented for a number of sites investigated between Mannum and White Sands. Interpretation of this data indicates three different bank-failure slide morphologies present in the banks and adjacent channel. Type 1, ';recent' (2009-2011) deep-seated rotational slumps characterised by distinct, sharply-defined failure scars and associated debris fields of angular blocks shed from the failure site. Type 2, ';relatively-recent' shallow planar-failures, with less well-defined smoother failure scars and associated debris fields of smoothed or rounded blocks and pinnacles. Type 3, ';relatively-old' shallow planar-failures characterised by subdued relief slump scars that do not present an associated debris field. It is suspected that successive floods or high-flow events progressively erode and redistribute material, smoothing the landslide scars and redistributing the slide-debris deposits. Bank-failure and the delivery of material from the slides into the channel is interpreted as an ongoing and long-term geomorphic characteristic of the lower Murray River, rather than a new phenomenon that occurred as a response to unusually low river levels during the Millennium Drought. The larger size and rotational style of the recent Type 1 failures is most likely to be a consequence of the drought and anthropogenic modifications of the river channel and

  19. Anti-smoking environment: a perspective from Murray's psychogenic needs theory.

    PubMed

    Randheer, Kokku; Almotairi, Mohammad; Naeem, Haseebullah Abdul

    2013-10-27

    Smoking emerged as a social problem in many nations. Smoking is inflicting injuries to society including addiction, diseases, health damage, and loss of productivity. Individuals, institutions and governments are working to contain the menace of smoking. Many policies, programs and activities are being designed and implemented. To extend a helping hand to fight against smoking this study brought to light the amalgamation of Murray's psychogenic needs theory with anti-smoking activities to create an effective anti-smoking environment.  Conceptual methodology is adopted and five propositions were drafted. This study conclude that anti-smoking activities general education, campaigning, counseling, social welfare, and medical camps when moderated by Murray's psychogenic needs power, affiliation and achievement can create an effective anti-smoking environment further leading to quitting or reduction in the smoking.

  20. Petrography and origin of refractory inclusions from the Murray and Murchison C2 chondrites

    NASA Technical Reports Server (NTRS)

    Simon, S. B.; Grossman, L.; Hsu, A.

    1993-01-01

    By freeze-thaw disaggregation, we have recovered a total of 47 refractory inclusions. New discoveries include the following: a hibonite-pyroxene spherule from Murray; a CaAl4O7-bearing spherule from Murchison; and a Sc-fassaite-bearing ultrarefractory inclusion from Murchison. Freeze-thaw disaggregation, combined with density separation and hand-picking as described is a proven method for recovering rare objects from carbonaceous chondrites. This method is especially effective on C2's due to their porosity and typically results in the discovery of new types of refractory inclusions. Because few refractory inclusions from Murray have been described, we studied this meteorite, although only a small amount of material (730 mg) was available for disaggregation. Many refractory inclusions from Murchison have been described, and we disaggregated a larger amount (approximately 18 g) of Murchison in an attempt to find new types of refractory inclusions, especially corundum-bearing ones.

  1. Tectonics of the Dalrymple Trough and uplift of the Murray Ridge (NW Indian Ocean)

    NASA Astrophysics Data System (ADS)

    Rodriguez, Mathieu; Chamot-Rooke, Nicolas; Huchon, Philippe; Fournier, Marc; Lallemant, Siegfried; Delescluse, Matthias; Zaragosi, Sébastien; Mouchot, Nicolas

    2014-12-01

    The Dalrymple Trough is a 150-km-long, 30-km-wide basin located at the northern termination of the Owen Fracture Zone (OFZ), which is the present-day active India-Arabia plate boundary. The Dalrymple Trough is closely associated with the Murray Ridge, a complex of prominent bathymetric highs located on its eastern flank. Recent multibeam mapping of the connection between the Dalrymple Trough and the OFZ revealed a horsetail structure, which suggests a close relationship between geological histories of both structures. However, the 3-6 Ma age of initiation of the OFZ contrasts with the commonly accepted Early Miocene emplacement of the Dalrymple Trough. Recent seismic lines document a new tectonic history of the Dalrymple Trough, involving two major episodes of deformation along the India-Arabia plate boundary at ~ 8-10 Ma and ~ 1.9 ± 0.9 Ma. The 8-10 Ma episode is marked by a system of folds linked to the main uplift of the southern Murray Ridge and the first uplift of the northern Murray Ridge. This episode is related to a global plate reorganization event in the Late Miocene, well expressed by intraplate deformation in the Central Indian Ocean. The Dalrymple Trough opened at ~ 1.9 ± 0.9 Ma subsequently to the formation of a stepover at the India-Arabia plate boundary, coeval with the regional M-unconformity in the Oman abyssal plain, which marks a structural reorganization of the Makran accretionary wedge, and the last uplift of the northern Murray Ridge.

  2. Reviewing colony losses and Colony Collapse Disorder in the United States

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The beekeeping industry in the United States has faced a number of obstacles to healthy bee management in recent decades. These obstacles range from arthropod pests such as tracheal mites (Acrapis woodi), varroa mites (Varroa destructor), and small hive beetles (Aethina tumida) to pathogenic disease...

  3. Chasing your honey: Worldwide diaspora of the small hive beetle, a parasite of honey bee colonies

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Endemic to sub-Saharan Africa, small hive beetles (Aethina tumida) are now an invasive pest of honey bee colonies in Australia and North America. Knowledge on the introduction(s) from Africa into and between the current ranges will shed light on pest populations, invasion pathways and contribute to ...

  4. Small hive beetles, honeybees, yeast and plants: evolution of an insect pest

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The Small hive beetle, Aethina tumida, is seemingly an anomaly among Nitidulids because it thrives in honeybee hives feeding on pollen and bee brood. Attraction to bee hives is mediated by the Honeybee alarm pheromone. We have discovered that when feeding on pollen resources in bee hives the beetl...

  5. Occurrence, diversity and pattern of damage of Oplostomus species (Coleoptera: Scarabaeidae), honey bee pests in Kenya

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Several arthropod pests including the hive beetles Aethina tumida and Oplostomus haroldi and the ectoparasite Varroa destructor have recently been identified as associated with honey bee colonies in Kenya. Here, we report the first documentation of O. fuligineus in Kenya, a related scarab of O. haro...

  6. Current status of small hive beetle infestation in the Philippines

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The distribution of the small hive beetle (SHB, Aethina tumida) is rapidly expanding. From sub-Saharan Africa where it is considered indigenous, SHB has successfully invaded other continents, is prevalent in Australia and North America, and has recently been introduced into Europe (summarized by FE...

  7. Evidence for interstellar SiC in the Murray carbonaceous meteorite

    NASA Technical Reports Server (NTRS)

    Bernatowicz, Thomas; Wopenka, Brigitte; Fraundorf, Gail; Ming, Tang; Anders, Edward

    1987-01-01

    Silicon carbide has been identified in two separates from the Murray carbonaceous chondrite that are enriched 20,000-fold in isotopically anomalous neon and xenon. The SiC is present in the form of crystalline grains 0.1-1 micron in size. Cubic and 111-plane-twinned cubic are the most common ordered polytypes observed so far. The anomalous isotopic composition of its carbon, nitrogen, and silicon indicates a presolar origin, probably in the atmospheres of red giants. An additional silicon- and oxygen-rich phase shows large isotropic anomalies in nitrogen and silicon, also associated with a presolar origin.

  8. The socially just face of public health leadership Linda Rae Murray. Interview by Donya Lynn Currie.

    PubMed

    Murray, Linda Rae

    2011-02-01

    Linda Rae Murray, MD, MPH, a champion of social justice and outspoken advocate for the medically underserved for more than 40 years, is not easy to describe. Part E. F. Hutton (when she talks, people listen), part streetwise negotiator (she's not shy about dropping a four-letter word into conversation), she might come across as brash and intimidating to some. But those who know her well will attest to her softhearted interior, and her unwavering commitment to speaking out in the name of better health for all.

  9. John Murray / MABAHISS expedition versus the International Indian Ocean Expedition (IIOE) in retrospect

    NASA Astrophysics Data System (ADS)

    Aleem, A. A.; Morcos, S. A.

    In addition to its scientific achievements, the John Murray/Mabahiss Expedition was a unique experiment in technology transfer and it pioneered bilateral relations in the field of oceanography, at a time when the Law of the Sea was not even an embryonic concept. The Expedition will be remembered for its profound influence on the development of oceanography in Egypt, and subsequently in several Arab and African countries, as well as for its socio-economic impact in Egypt. The International Indian Ocean Expedition (IIOE) was an elaborate exercise involving both the most sophisticated developments in oceanography of the day and the full complexity of international relations which necessitated the scientific, coordinating and supporting mechanisms of SCOR, IOC and Unesco combined. Each exercise separated by 25 years represented a significant event in the development of oceanography. Each was a natural product of the prevailing state of the art and the international climate. Oceanography had made a quantum jump in technology in the intervening quarter of a century, which had put the cost of deep sea oceanography quite beyond the financial capabilities of many developing countries, an important factor to bear in mind when comparing the impact of the John Murray/Mabahiss Expedition on Egypt with that of the IIOE, on the Indian Ocean countries.

  10. Diagnostic study of job design in oil industry: Fort McMurray, Alberta, Canada

    SciTech Connect

    Singh, M.

    1986-01-01

    The major purpose of this study was to diagnose the work situation of members of McMurray Independent Oil Workers (MIOW) Union, employed with Suncor, Inc., Fort McMurray and make recommendations for work improvements. Hackman and Oldham's Job Diagnostic Survey (JDS) and four scales of Leader Behavior Description Questionnaire Form XII were used to collect data from MIOW Union members with a sample size of 50% of the population. Ninety-eight usable questionnaires were received back by the investigator. The major concepts measured included job dimensions (skill variety, task identity, task significance, autonomy, feedback from job, feedback from agents, and dealing with others), affective outcomes (motivation, job satisfaction, and growth satisfaction), supervisory behaviors (initiating structure, consideration, production emphasis, persuasiveness) and demographic variables. Data were analyzed by using MINITAB and SPSSX statistical packages. Greater consideration and emotional support on the part of supervisors could increase affective outcomes and satisfaction with supervision and should result in greater organizational effectiveness. The overall pattern of quality of work life appeared to be production-oriented characterized by lack of supervisory considerations and less conducive for greater organizational performance.

  11. Extension of Murray's law including nonlinear mechanics of a composite artery wall.

    PubMed

    Lindström, Stefan B; Satha, Ganarupan; Klarbring, Anders

    2015-01-01

    A goal function approach is used to derive an extension of Murray's law that includes effects of nonlinear mechanics of the artery wall. The artery is modeled as a thin-walled tube composed of different species of nonlinear elastic materials that deform together. These materials grow and remodel in a process that is governed by a target state defined by a homeostatic radius and a homeostatic material composition. Following Murray's original idea, this target state is defined by a principle of minimum work. We take this work to include that of pumping and maintaining blood, as well as maintaining the materials of the artery wall. The minimization is performed under a constraint imposed by mechanical equilibrium. We derive a condition for the existence of a cost-optimal homeostatic state. We also conduct parametric studies using this novel theoretical frame to investigate how the cost-optimal radius and composition of the artery wall depend on flow rate, blood pressure, and elastin content.

  12. Foraminifera Diversity of Murray's Pool (western Bahrain) and their fight against Land Reclamation

    NASA Astrophysics Data System (ADS)

    Amao, Abduljamiu; Kaminski, Michael

    2015-04-01

    Coastal land in Bahrain is sharply declining due to rapid Urbanization and expansion of housing, transport and recreational facilities projects. Flourishing foraminiferal microhabits are stretched thin and foraminiferal space is at a premium. In this study, we survey a semi-enclosed lagoon that we named "Murray's Pool" because this is the same location as the one studied by Basson & Murray (1995), the only previous study of Foraminifera in western Bahrain. The site is now under threat by developers who are in the process of extending the seafront park on the south side of the town of Askar. The purpose of our study is to document the foraminiferal abundance and diversity across the lagoon before it disappears under a park. We identified five microhabitats, namely tidal channel, tidal flat, marsh, bacterial mat, and marsh back-pool environments. Faunal analysis from the five shallow-water subenvironments reveals a single diverse assemblage of benthic foraminifera. The most common species across all the microhabitats is Spirolina arietina. Species evenness, species richness, Shannon-Wiener diversity index, assemblage composition, and percentage abundances were determined for each subenvironment. The Shannon-Wiener Diversity Index and species evenness in the bacterial mat microhabitat is higher than at the other sites. The vegetated marsh microhabitat in general, has the proportions of individuals in the community distributed more equitably among the species. The tidal channel shows the highest total abundance, but has 5 fewer species compared with the marsh subenvironment.

  13. Optimal dynamic water allocation: Irrigation extractions and environmental tradeoffs in the Murray River, Australia

    NASA Astrophysics Data System (ADS)

    Grafton, R. Quentin; Chu, Hoang Long; Stewardson, Michael; Kompas, Tom

    2011-12-01

    A key challenge in managing semiarid basins, such as in the Murray-Darling in Australia, is to balance the trade-offs between the net benefits of allocating water for irrigated agriculture, and other uses, versus the costs of reduced surface flows for the environment. Typically, water planners do not have the tools to optimally and dynamically allocate water among competing uses. We address this problem by developing a general stochastic, dynamic programming model with four state variables (the drought status, the current weather, weather correlation, and current storage) and two controls (environmental release and irrigation allocation) to optimally allocate water between extractions and in situ uses. The model is calibrated to Australia's Murray River that generates: (1) a robust qualitative result that "pulse" or artificial flood events are an optimal way to deliver environmental flows over and above conveyance of base flows; (2) from 2001 to 2009 a water reallocation that would have given less to irrigated agriculture and more to environmental flows would have generated between half a billion and over 3 billion U.S. dollars in overall economic benefits; and (3) water markets increase optimal environmental releases by reducing the losses associated with reduced water diversions.

  14. Generalizing Murray's law: An optimization principle for fluidic networks of arbitrary shape and scale

    NASA Astrophysics Data System (ADS)

    Stephenson, David; Patronis, Alexander; Holland, David M.; Lockerby, Duncan A.

    2015-11-01

    Murray's law states that the volumetric flow rate is proportional to the cube of the radius in a cylindrical channel optimized to require the minimum work to drive and maintain the fluid. However, application of this principle to the biomimetic design of micro/nano fabricated networks requires optimization of channels with arbitrary cross-sectional shape (not just circular) and smaller than is valid for Murray's original assumptions. We present a generalized law for symmetric branching that (a) is valid for any cross-sectional shape, providing that the shape is constant through the network; (b) is valid for slip flow and plug flow occurring at very small scales; and (c) is valid for networks with a constant depth, which is often a requirement for lab-on-a-chip fabrication procedures. By considering limits of the generalized law, we show that the optimum daughter-parent area ratio Γ, for symmetric branching into N daughter channels of any constant cross-sectional shape, is Γ=N-2 /3 for large-scale channels, and Γ=N-4 /5 for channels with a characteristic length scale much smaller than the slip length. Our analytical results are verified by comparison with a numerical optimization of a two-level network model based on flow rate data obtained from a variety of sources, including Navier-Stokes slip calculations, kinetic theory data, and stochastic particle simulations.

  15. Identification of Presolar Spinel Grains from a Murray Residue by Multi-Detection Raster Imaging

    NASA Technical Reports Server (NTRS)

    Nguyen, A.; Zinner, E.; Lewis, R. S.

    2003-01-01

    Grain size separate CG from the Murray CM2 carbonaceous chondrite contains mostly spinel grains of average diameter 0.5 m. Zinner et al. found that approximately 1% of these spinel grains are of presolar origin as determined by their large O isotopic anomalies. These O isotopic measurements were made with the NanoSIMS on individual grains that were well separated from one another on a gold foil. The grains were selected for analysis from secondary electron and secondary O-16(-) images. The primary beam was then successively deflected onto these single grains for O isotopic analysis. While single grain analysis on dispersed samples is effective for finding relatively abundant anomalous grains, ion imaging in a raster mode on tightly packed grains might be more efficient for locating few anomalous grains among predominantly isotopically normal grains. In fact, this was the analysis mode used by Messenger et al. to discover presolar silicates in interplanetary dust particles. In an exploratory effort that is also geared toward establishing the optimum isotopic imaging technique in the search for presolar silicate grains in primitive meteorites, we measured O isotopic ratios in spinel grains from the Murray CG separate by raster imaging of areas with more or less tightly packed grains.

  16. Link between deviations from Murray's Law and occurrence of low wall shear stress regions in the left coronary artery.

    PubMed

    Doutel, E; Pinto, S I S; Campos, J B L M; Miranda, J M

    2016-08-07

    Murray developed two laws for the geometry of bifurcations in the circulatory system. Based on the principle of energy minimization, Murray found restrictions for the relation between the diameters and also between the angles of the branches. It is known that bifurcations are prone to the development of atherosclerosis, in regions associated to low wall shear stresses (WSS) and high oscillatory shear index (OSI). These indicators (size of low WSS regions, size of high OSI regions and size of high helicity regions) were evaluated in this work. All of them were normalized by the size of the outflow branches. The relation between Murray's laws and the size of low WSS regions was analysed in detail. It was found that the main factor leading to large regions of low WSS is the so called expansion ratio, a relation between the cross section areas of the outflow branches and the cross section area of the main branch. Large regions of low WSS appear for high expansion ratios. Furthermore, the size of low WSS regions is independent of the ratio between the diameters of the outflow branches. Since the expansion ratio in bifurcations following Murray's law is kept in a small range (1 and 1.25), all of them have regions of low WSS with similar size. However, the expansion ratio is not small enough to completely prevent regions with low WSS values and, therefore, Murray's law does not lead to atherosclerosis minimization. A study on the effect of the angulation of the bifurcation suggests that the Murray's law for the angles does not minimize the size of low WSS regions.

  17. Chemistry of the Materials Above and Below an Unconformity Between the Murray and Stimson Formations in Gale Crater, Mars

    NASA Astrophysics Data System (ADS)

    Newsom, H. E.; Belgacem, I.; Wiens, R. C.; Frydenvang, J.; Gasnault, O.; Maurice, S.; Gasda, P. J.; Clegg, S. M.; Cousin, A.; Rapin, W.; Jackson, R.; Vaci, Z.; Ha, B.; Blaney, D. L.; Bridges, N.; Francis, R.; Payré, V.; Gupta, S.; Banham, S.; Schroeder, J.; Calef, F. J., III; Edgett, K. S.; Fey, D.; Fisk, M. R.; Gellert, R.; Thompson, L. M.; Perrett, G. M.; Grotzinger, J. P.; Rubin, D. M.; Williams, A.; Kah, L. C.; Kronyak, R. E.

    2015-12-01

    MSL began investigating a contact between Murray formation, (fine grained lake deposits) and the younger Stimson formation at Marias Pass in May 2015, on the lower slopes of Mt. Sharp. Images show that the Murray formation, with numerous calcium sulfate veins compared to the Stimson, is truncated at an erosional contact. MAHLI images show a white layer a few mm thick at the contact that might be calcium sulfate. The lowermost beds of the Stimson unit in the Missoula area comprise horizontally laminated or cross-laminated sandstones. The sandstones are poorly sorted with floating granules and very coarse sand grains set in a fine- medium-grained sand 'matrix'. This material directly above the contact is a resistant, basal ledge-forming layer that also forms numerous blocks of float on top of the eroded Murray. This basal layer contains light toned fragments, possibly calcium sulfate, eroded from the Murray. The poor sorting and presence of sub-angular grains, together with the absence of preferential sorting into size sorted layers would seem to rule out eolian processes for the lowermost beds of the Stimson and suggest fluvial processes were responsible for deposition of these beds. For chemostratigraphy, the distance of each ChemCam or APXS observation above or below the contact was determined from images and the NavCam stereo mesh. The top of the Murray near the Missoula area is variable in composition, and additional analyses are planned to determine if weathering occurred at the eroded surface. Above the contact, the lowest 2 cm of the resistant slab is higher in SiO2, and lower in Al2O3, K2O and Na2O, relative to other Stimson analyses. In a few points with low totals, there is a correlation between Ca and missing components (presumed to be mostly S). These points could be connected to calcium sulfate in the form of cements and/or incorporation of eroded clasts of Murray vein materials.

  18. Banquet Speech at the Singapore Conference in Honour of Murray Gell-Mann on His 80th Birthday

    NASA Astrophysics Data System (ADS)

    Yang, Chen Ning

    2013-05-01

    It was about 60 years ago in 1951 that I first met in Princeton, at the Institute for Advanced Study, our Honoree tonight, Murray Gell-Mann. In the intervening 60 years, man's understanding of the fundamental structure of matter has made great historic advances. At this wonderful Conference, we have the opportunity to review some of these historic advances. It is a little like looking over an old album of memorable photographs in one's lifetime. In many of these photographs, Murray appears either in the foreground, or as the photographer snapping the picture. We know he is pleased with the album...

  19. Education, Place and Sustainability: A Literature Review and Overview of Curriculum and Policy in the States and the Territory of the Murray-Darling Basin

    ERIC Educational Resources Information Center

    Roberts, Philip; Downes, Natalie; Cook, Louise; Heiner, Irmgard; Caffery, Jo

    2014-01-01

    This report has been developed as part of the MDBfutures Collaborative Research Network project "Towards Place Based Education in the Murray-Darling Basin." The project explores the ways in which sustainability is understood in Murray Darling Basin (MDB) communities of Australia (including Indigenous, rural, small towns and regional…

  20. Inquiry, Evidence, and Excellence: The Promise and Practice of Quality Assurance. A Festschrift in Honor of Frank B. Murray

    ERIC Educational Resources Information Center

    LaCelle-Peterson, Mark, Ed.; Rigden, Diana, Ed.

    2012-01-01

    The overall aim of this volume of essays is to honor Frank B. Murray's commitments to empirically-based quality assurance and to the development of increasingly effective systems of quality control in educator preparation programs. As the editors approached the authors with the invitation to contribute an essay, two characteristic aspects of…

  1. The Impact of Wildland and Structure Fire Smoke on Ambient Pollution Levels in Fort McMurray, Alberta, Canada

    EPA Science Inventory

    An unprecedented wildfire impacted the northern Alberta city of Fort McMurray in May 2016 causing a mandatory evacuation of all residents and resulted in the loss of over 2,400 homes and businesses. An estimated two hectare wildfire was first discovered on May 1 by a fire patrol...

  2. Engineers Jim Murray and Joe Pahle prepare a deployable, inflatable wing technology demonstrator exp

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Engineers Jim Murray and Joe Pahle prepare a deployable, inflatable wing technology demonstrator experiment flown by the NASA Dryden Flight Research Center, Edwards, California. The inflatable wing project represented a basic flight research effort by Dryden personnel. Three successful flights of the I2000 inflatable wing aircraft occurred. During the flights, the team air-launched the radio-controlled (R/C) I2000 from an R/C utility airplane at an altitude of 800-1000 feet. As the I2000 separated from the carrier aircraft, its inflatable wings 'popped-out,' deploying rapidly via an on-board nitrogen bottle. The aircraft remained stable as it transitioned from wingless to winged flight. The unpowered I2000 glided down to a smooth landing under complete control.

  3. Comparisons by peptide mapping of proteins specified by Kunjin, West Nile and Murray Valley encephalitis viruses.

    PubMed

    Wright, P J; Warr, H M; Westaway, E G

    1983-12-01

    The relationships among virus-specified proteins of Murray Valley encephalitis (MVE), Kunjin (KUN) and West Nile (WN) viruses were investigated by peptide mapping of exhaustive proteolytic digests of radioactively labelled polypeptides. Maps of the three structural proteins (E, C and M) derived from purified virions and of two non-structural proteins (NV5 and NV4) obtained from infected cells were compared. For each polypeptide considered, the peptide maps of the KUN and WN virus-specified proteins were more similar to each other than either was to the map of the corresponding MVE virus-specified protein. Since the polypeptides considered together account for approximately 60% of the coding capacity of the flavivirus genome, our results suggested that, for the three viruses examined, the genomes of KUN and WN viruses are the most closely related.

  4. Hypericum japonicum Thunb. ex Murray: phytochemistry, pharmacology, quality control and pharmacokinetics of an important herbal medicine.

    PubMed

    Liu, Lin-Sheng; Liu, Meng-Hua; He, Jing-Yu

    2014-07-24

    Hypericum japonicum Thunb. ex Murray is mainly distributed throughout Asia, Oceania and North America and is used as an important herbal medicine. H. japonicum contains many valuable secondary metabolites, such as flavonoids, phloroglucinols and xanthones and has hepatoprotective, anti-tumor, antibacterial, antiviral, and antioxidant activities and effects on the cardiovascular system and immunity. Coupled with phytochemical and pharmacological research, a series of analytical methods have been developed to evaluate the quality of H. japonicum based on its bioactive components. A pharmacokinetics study involved the absorption of two main flavonoids of H. japonicum in rats. This review aims to present an up-to-date and comprehensive overview of the phytochemistry, pharmacology, quality control and pharmacokinetics of H. japonicum, which should be useful for the greater development of H. japonicum, especially in the development of new drugs and therapeutics for various diseases.

  5. I-Xe age and trapped Xe components of the Murray /C-2/ chondrite

    NASA Technical Reports Server (NTRS)

    Niemeyer, S.; Zaikowski, A.

    1980-01-01

    A neutron-irradiated bulk sample of the Murray (C-2) carbonaceous chondrite was etched with H2O2 and then divided into colloidal and non-colloidal fractions. The H2O2 treatment removed about 80% of the trapped Xe and greatly increased variations in the Xe-129/Xe-132 ratio measured in stepwise heating. The colloid showed very little excess Xe-129, but the anti-colloid gave a fairly good I-Xe correlation corresponding to formation 3.7 + or - 2.1 m.y. after Bjurbole. Variations in the trapped Xe component were also observed; most notably the 550 C anti-colloid fraction has large deficiencies relative to AVCC at the heavy isotopes.

  6. High concentrations of manganese and sulfur in deposits on Murray Ridge, Endeavour Crater, Mars

    USGS Publications Warehouse

    Arvidson, Raymond E.; Squyres, Steven W.; Morris, Richard V.; Knoll, Andrew H.; Gellert, Ralf; Clark, Benton C.; Catalano, Jeffrey G.; Jolliff, Bradley L.; McLennan, Scott M.; Herkenhoff, Kenneth E.; VanBommel, Scott; Mittelfehldt, David W.; Grotzinger, John P.; Guinness, Edward A.; Johnson, Jeffrey R.; Bell, James F.; Farrand, William H.; Stein, Nathan; Fox, Valerie K.; Golombek, Matthew P.; Hinkle, Margaret A. G.; Calvin, Wendy M.; de Souza, Paulo A.

    2016-01-01

    Mars Reconnaissance Orbiter HiRISE images and Opportunity rover observations of the ~22 km wide Noachian age Endeavour Crater on Mars show that the rim and surrounding terrains were densely fractured during the impact crater-forming event. Fractures have also propagated upward into the overlying Burns formation sandstones. Opportunity’s observations show that the western crater rim segment, called Murray Ridge, is composed of impact breccias with basaltic compositions, as well as occasional fracture-filling calcium sulfate veins. Cook Haven, a gentle depression on Murray Ridge, and the site where Opportunity spent its sixth winter, exposes highly fractured, recessive outcrops that have relatively high concentrations of S and Cl, consistent with modest aqueous alteration. Opportunity’s rover wheels serendipitously excavated and overturned several small rocks from a Cook Haven fracture zone. Extensive measurement campaigns were conducted on two of them: Pinnacle Island and Stuart Island. These rocks have the highest concentrations of Mn and S measured to date by Opportunity and occur as a relatively bright sulfate-rich coating on basaltic rock, capped by a thin deposit of one or more dark Mn oxide phases intermixed with sulfate minerals. We infer from these unique Pinnacle Island and Stuart Island rock measurements that subsurface precipitation of sulfate-dominated coatings was followed by an interval of partial dissolution and reaction with one or more strong oxidants (e.g., O2) to produce the Mn oxide mineral(s) intermixed with sulfate-rich salt coatings. In contrast to arid regions on Earth, where Mn oxides are widely incorporated into coatings on surface rocks, our results demonstrate that on Mars the most likely place to deposit and preserve Mn oxides was in fracture zones where migrating fluids intersected surface oxidants, forming precipitates shielded from subsequent physical erosion.

  7. Magnesium isotopic fractionation in chondrules from the Murchison and Murray CM2 carbonaceous chondrites

    NASA Astrophysics Data System (ADS)

    Bouvier, Audrey; Wadhwa, Meenakshi; Simon, Steven B.; Grossman, Lawrence

    2013-03-01

    We present high-precision measurements of the Mg isotopic compositions of a suite of types I and II chondrules separated from the Murchison and Murray CM2 carbonaceous chondrites. These chondrules are olivine- and pyroxene-rich and have low 27Al/24Mg ratios (0.012-0.316). The Mg isotopic compositions of Murray chondrules are on average lighter (δ26Mg ranging from -0.95‰ to -0.15‰ relative to the DSM-3 standard) than those of Murchison (δ26Mg ranging from -1.27‰ to +0.77‰). Taken together, the CM2 chondrules exhibit a narrower range of Mg isotopic compositions than those from CV and CB chondrites studied previously. The least-altered CM2 chondrules are on average lighter (average δ26Mg = -0.39 ± 0.30‰, 2SE) than the moderately to heavily altered CM2 chondrules (average δ26Mg = -0.11 ± 0.21‰, 2SE). The compositions of CM2 chondrules are consistent with isotopic fractionation toward heavy Mg being associated with the formation of secondary silicate phases on the CM2 parent body, but were also probably affected by volatilization and recondensation processes involved in their original formation. The low-Al CM2 chondrules analyzed here do not exhibit any mass-independent variations in 26Mg from the decay of 26Al, with the exception of two chondrules that show only small variations just outside of the analytical error. In the case of the chondrule with the highest Al/Mg ratio (a type IAB chondrule from Murchison), the lack of resolvable 26Mg excess suggests that it either formed >1 Ma after calcium-aluminum-rich inclusions, or that its Al-Mg isotope systematics were reset by secondary alteration processes on the CM2 chondrite parent body after the decay of 26Al.

  8. Primary antibody responses of herons to experimental infection with Murray Valley encephalitis and Kunjin viruses.

    PubMed

    Boyle, D B; Marshall, I D; Dickerman, R W

    1983-12-01

    Antibody responses of rufous night herons (Nycticorax caledonicus) and little egrets (Egretta garzetta) following infection with Murray Valley encephalitis and Kunjin viruses were determined. Haemagglutinin-inhibiting antibodies were first detected on day 5 or 6 after inoculation and increased rapidly, reaching maximum titres of 320 to 2560 between 10 and 20 days after inoculation. Titres declined 20-320 between 60 and 120 days after inoculation, then tended to remain stationary. Titres were 2- to 8-fold higher to infecting virus than heterologous virus. Neutralizing antibody development paralleled that of HI antibodies with titres maintained at a higher level for longer periods; however, they did eventually decline to low levels. Following MVE virus infection IgM (19S), HI antibodies were 80-100% of HI antibodies detectable on day 6 or 7 after inoculation and declined rapidly, becoming undetectable by 20 days after inoculation. With Kunjin virus infections, IgM HI antibodies represented 90-100% of HI antibodies detectable on day 6 or 7 after inoculation. Significant levels of IgM HI antibodies were still detectable 20 days after inoculation (5-30% of total HI antibodies) and, in some birds, even at 27 days after inoculation (up to 10%), IgG (7S) HI antibodies were low or undetectable on day 6 or 7 after inoculation, then increased rapidly with rapidly rising HI antibody titres. The specificity of IgM and IgG antibodies and unfractionated sera was determined by testing against Murray Valley encephalitis, Kunjin, Japanese encephalitis and West Nile virus haemagglutinating antigens. It was possible to determine with which virus a bird had been infected from the pattern of cross-reaction with these antigens. These results should provide a rational basis for the interpretation of serological results from naturally infected birds.

  9. Radiobiology of Small Hive Beetle (Coleoptera: Nitidulidae) and Prospects for Management Using Sterile Insect Releases.

    PubMed

    Downey, Danielle; Chun, Stacey; Follett, Peter

    2015-06-01

    Small hive beetle, Aethina tumida Murray (Coleoptera: Nitidulidae), is considered a serious threat to beekeeping in the Western Hemisphere, Australia, and Europe mainly due to larval feeding on honey, pollen, and brood of the European honeybee, Apis mellifera L. Control methods are limited for this pest. Studies were conducted to provide information on the radiobiology of small hive beetle and determine the potential for sterile insect releases as a control strategy. Adult males and females were equally sensitive to a radiation dose of 80 Gy and died within 5-7 d after treatment. In reciprocal crossing studies, irradiation of females only lowered reproduction to a greater extent than irradiation of males only. For matings between unirradiated males and irradiated females, mean reproduction was reduced by >99% at 45 and 60 Gy compared with controls, and no larvae were produced at 75 Gy. Irradiation of prereproductive adults of both sexes at 45 Gy under low oxygen (1-4%) caused a high level of sterility (>99%) while maintaining moderate survivorship for several weeks, and should suffice for sterile insect releases. Sterile insect technique holds potential for suppressing small hive beetle populations in newly invaded areas and limiting its spread.

  10. Groundwater flow and solute transport at the Mourquong saline-water disposal basin, Murray Basin, southeastern Australia

    NASA Astrophysics Data System (ADS)

    Simmons, Craig; Narayan, Kumar; Woods, Juliette; Herczeg, Andrew

    2002-03-01

    Saline groundwater and drainage effluent from irrigation are commonly stored in some 200 natural and artificial saline-water disposal basins throughout the Murray-Darling Basin of Australia. Their impact on underlying aquifers and the River Murray, one of Australia's major water supplies, is of serious concern. In one such scheme, saline groundwater is pumped into Lake Mourquong, a natural groundwater discharge complex. The disposal basin is hydrodynamically restricted by low-permeability lacustrine clays, but there are vulnerable areas in the southeast where the clay is apparently missing. The extent of vertical and lateral leakage of basin brines and the processes controlling their migration are examined using (1) analyses of chloride and stable isotopes of water (2H/1H and 18O/16O) to infer mixing between regional groundwater and lake water, and (2) the variable-density groundwater flow and solute-transport code SUTRA. Hydrochemical results indicate that evaporated disposal water has moved at least 100 m in an easterly direction and that there is negligible movement of brines in a southerly direction towards the River Murray. The model is used to consider various management scenarios. Salt-load movement to the River Murray was highest in a "worst-case" scenario with irrigation employed between the basin and the River Murray. Present-day operating conditions lead to little, if any, direct movement of brine from the basin into the river. Résumé. Les eaux souterraines salées et les effluents de drainage de l'irrigation sont stockés dans environ 200 bassins naturels ou artificiels destinés à retenir les eaux salines dans tout le bassin de Murray-Darling, en Australie. Leur impact sur les aquifères sous-jacents et sur la rivière Murray, l'une des principales ressources en eau d'Australie, constitue un problème grave. Dans une telle situation, les eaux souterraines salines sont pompées dans le lac Mourquong, complexe dans lequel les nappes se d

  11. Di-n-butyl phthalate causes estrogenic effects in adult male Murray rainbowfish (Melanotaenia fluviatilis).

    PubMed

    Bhatia, Harpreet; Kumar, Anupama; Ogino, Yukiko; Gregg, Adrienne; Chapman, John; McLaughlin, Mike J; Iguchi, Taisen

    2014-04-01

    Phthalic acid esters (PAEs) are a class of synthetic industrial chemicals commonly found in the aquatic environment worldwide. PAEs have been recognised as anti-androgens in male mammals but little is known about their endocrine disrupting effects in fish. This study investigated the effects of 7-day exposures to nominal (measured) concentrations of 125 (62), 250 (140), 500 (230) and 1,000 (383) μg/L of di-n-butyl phthalate (DnBP) on the biomarkers of reproduction in adult male Murray River rainbowfish (Melanotaenia fluviatilis) using molecular, biochemical and histological endpoints. None of the tested concentrations of DnBP had any effect on survival or the vital body indices of the fish. The sizes of spermatogonia, Type A and B spermatocytes and spermatids were significantly smaller relative to the controls after treatment with DnBP. This was accompanied by a significant increase in the proportion of spermatogonia in fish treated with 250-1,000 μg/L of DnBP in comparison to the unexposed fish. At the end of the exposure period, the expressions of the transcripts for the androgen receptors α and β were significantly elevated in the livers of the fish treated with 500 and 1,000 μg/L of DnBP. In addition, there was also an increase in the circulating concentrations of vitellogenin in the plasma in the higher treatment groups. An induction in the activity of aromatase was noted in the brains of 1,000 μg/L DnBP-treated fish. This was accompanied by an increase in the hepatic expression of the genes (here and later, whenever the phrase gene expression is used as a synonym for gene transcription although it is acknowledged that it is also regulated, e.g., by translation, mRNA stability and protein stability) encoding for the oestrogen receptors α and β and choriogenin L. Collectively, an increase in the proportion of spermatogonia in the testes, the upregulation of the genes for the oestrogen receptors and choriogenin in the liver, an induction in the brain

  12. Procedures for ensuring community involvement in multijurisdictional river basins: a comparison of the Murray-Darling and Mekong river basins.

    PubMed

    Chenoweth, Jonathan L; Ewing, Sarah A; Bird, Juliet F

    2002-04-01

    Community involvement is fundamental to the management of multijurisdictional river basins but, in practice, is very difficult to achieve. The Murray-Darling basin, in Australia, and the Mekong River basin in Southeast Asia are both cooperatively managed multijurisdictional river basins where the management authorities have expressed an aim of community involvement. In the Murray-Darling basin vigorous efforts have promoted a culture of community consultation throughout each of the state jurisdictions involved, although true participation has not necessarily been achieved. In the Mekong basin the community is much more diverse and the successes so far have been largely at the local level, involving action in subsections of the basin. These case studies suggest that community involvement in the form of community consultation across large multijurisdictional river basins is achievable, but more comprehensive participation is not necessarily possible.

  13. Primary viraemia responses of herons to experimental infection with Murray Valley encephalitis, Kunjin and Japanese encephalitis viruses.

    PubMed

    Boyle, D B; Dickerman, R W; Marshall, I D

    1983-12-01

    Rufous night herons, Pacific herons, little egrets and intermediate egrets were experimentally infected with Murray Valley encephalitis, Kunjin or Japanese encephalitis viruses. Viraemias of at least one day's duration were detected in all birds except two intermediate egrets inoculated with a very low dose of Kunjin virus and one rufous night heron inoculated with Japanese encephalitis virus. there was usually a viraemia of 3 to 5 days' duration commencing on the first or second day and continuing until day 5 or 6 and rarely until day 7. Maximum titres tended to be higher in young birds, up to 2-5 months of age (10(4)-10(5) mouse LD50/ml), than in older birds more than 8 months of age (10(3)-10(4) mouse LD50/ml). Significant differences in maximum viraemia titres were not observed in the different species or between Murray Valley encephalitis and Kunjin viruses. Japanese encephalitis viraemias were significantly lower, but this was probably due to the high mouse brain passage level of the strain used. The onset of viraemia was earlier in intermediate egrets than in rufous night herons inoculated with similar doses of Murray Valley encephalitis virus, but no difference in the susceptibility to infection was observed. With Kunjin virus there was a significant difference in the susceptibility of intermediate egrets and rufous night herons, with rufous night herons being more susceptible to infection with low doses of virus. This difference in threshold of infection, if it extends to other species with both Kunjin and Murray Valley encephalitis viruses, may, in part, be an explanation for the greater incidence of natural infections observed in rufous night herons compared with other species and orders of water birds.

  14. Effect of Murray ridge on the tsunami propagation from Makran subduction zone

    NASA Astrophysics Data System (ADS)

    Swapna, M.; Srivastava, Kirti

    2014-12-01

    The aseismic Murray ridge (MR) is a continuation of the Owen fracture zone which marks the boundary between the Indian and Arabian plates. Due to large variation in morphology and structure within this NE-SW trending ridge in the Arabian Sea a large variation of the bathymetry from few hundred metres to about 4000 m is seen. Observed seismicity on the ridge system is predominantly strike-slip. Tsunamis generated in the Makran subduction zone (MSZ) will propagate through the MR system due to its proximity. As the tsunami speed depends on the depth of the ocean, bathymetry plays a vital role on tsunami propagation. In this paper, the effect of tsunami propagation through the MR system is carried out with the existing bathymetry and comparing the results by removing the bathymetry. To study this phenomenon the 1945 Makran tsunami and worst possible tsunamigenic earthquakes form eastern and western MSZ are considered. The directivity of tsunami propagation with the ridge system is seen to change after crossing the MR towards the southeast direction for tsunamis generated in the eastern MSZ. For tsunami generated in the western MSZ there is no change in its directivity and is almost same as without the ridge with propagation being towards the open sea. Hence the MR not only affects the amplitude of the tsunamis but also the directionality and the arrival times.

  15. Framboidal iron oxide: Chondrite-like material from the black mat, Murray Springs, Arizona

    NASA Astrophysics Data System (ADS)

    Fayek, Mostafa; Anovitz, Lawrence M.; Allard, Lawrence F.; Hull, Sharon

    2012-02-01

    At the end of the Pleistocene a Younger Dryas "black mat" was deposited on top of the Pleistocene sediments in many parts of North America. A study of the magnetic fraction (~ 10,900 ± 50 B.P.) from the basal section of the black mat at Murray Springs, AZ revealed the presence of amorphous iron oxide framboids in a glassy iron-silica matrix. These framboids are very similar in appearance and chemistry to those reported from several types of carbonaceous chondrites. The glass contains iron, silicon, oxygen, vanadium and minor titanium, while the framboidal particles contain calcium as well. The major element chemistry of both the spherules and the glass matrix are consistent with the chemistry of material associated with meteorite impact sites and meteorites. Electron microscopy confirms that the glassy material is indeed amorphous, and also shows that what appear to be individual oxide particles are amorphous as well. The latter appears consistent with their overall morphology that, while euhedral, typically shows significant fracture. Based on these data, we argue that these particles are the product of a hypervelocity impact.

  16. Framboidal iron oxide: Chondrite-like material from the black mat, Murray Springs, Arizona

    SciTech Connect

    Fayek, Mostafa; Anovitz, Lawrence {Larry} M; Allard Jr, Lawrence Frederick; Hull, Sharon

    2011-01-01

    At the end of the Pleistocene a Younger Dryas black mat was deposited on top of the Pleistocene sediments inmany parts of North America. A study of themagnetic fraction ({approx}10,900 50 B.P.) fromthe basal section of the black mat at Murray Springs, AZ revealed the presence of amorphous iron oxide framboids in a glassy iron-silica matrix. These framboids are very similar in appearance and chemistry to those reported from several types of carbonaceous chondrites. The glass contains iron, silicon, oxygen, vanadium and minor titanium, while the framboidal particles contain calcium as well. The major element chemistry of both the spherules and the glass matrix are consistent with the chemistry of material associated with meteorite impact sites and meteorites. Electron microscopy confirms that the glassy material is indeed amorphous, and also shows that what appear to be individual oxide particles are amorphous as well. The latter appears consistent with their overall morphology that, while euhedral, typically shows significant fracture. Based on these data, we argue that these particles are the product of a hypervelocity impact.

  17. Framboidal iron oxide: Chondrite-like material from the black mat, Murray Springs, Arizona

    SciTech Connect

    Fayek, Mostafa; Anovitz, Lawrence {Larry} M; Allard Jr, Lawrence Frederick; Hull, Sharon

    2012-01-01

    At the end of the Pleistocene a Younger Dryas black mat was deposited on top of the Pleistocene sediments in many parts of North America. A study of the magnetic fraction (~10,900 50 B.P.) from the basal section of the black mat at Murray Springs, AZ revealed the presence of amorphous iron xide framboids in a glassy iron-silica matrix. These framboids are very similar in appearance and chemistry to those reported from several types of carbonaceous chondrites. The glass contains iron, silicon, oxygen, vanadium and minor titanium, while the framboidal particles contain calcium as well. The major element chemistry of both the spherules and the glass matrix are consistent with the chemistry of material associated with meteorite impact sites and meteorites. Electron microscopy confirms that the glassy material is indeed amorphous, and also shows that what appear to be individual oxide particles are amorphous as well. The latter appears consistent with their overall morphology that, while euhedral, typically shows significant fracture. Based on these data, we argue that these particles are the product of a hypervelocity impact.

  18. Framboidal iron oxide: Chondrite-like material from the black mat, Murray Springs, Arizona

    SciTech Connect

    Fayek, Mostafa; Hull, Sharon; Anovitz, Lawrence {Larry} M; HaynesJr., C. Vance; Bergen, Laura

    2012-01-01

    At the end of the Pleistocene, many large mammals became extinct in North America1. The three most common theories for this phenomenon include climate change, overkill, or disease. Recently, researchers suggested that an extraterrestrial (ET) event may have caused sudden climate change that devastated these large mammals and had profound effects on the Clovis culture2,3. Critics of the ET event or impact theory note the lack of evidence such as an impact crater, impact material, shocked quartz, or tektites4. Here we present for the first time chemical and textural evidence of impact material from the Clovis-age, Murray Springs black mat layer, Arizona, USA. The impact material contains iron oxide spherules (framboids) in a glassy iron-silica matrix, which is one indicator of a possible meteorite impact. The spherules also contain elevated concentrations of vanadium and little titanium. The chemistry of both the spherules and matrix is consistent with the chemistry of impact material associated with other meteorite impact sites and meteorite showers.

  19. Complex movement patterns of greenback flounder (Rhombosolea tapirina) in the Murray River estuary and Coorong, Australia

    NASA Astrophysics Data System (ADS)

    Earl, Jason; Fowler, Anthony J.; Ye, Qifeng; Dittmann, Sabine

    2017-04-01

    The greenback flounder Rhombosolea tapirina is a commercially-important flatfish species in southern Australia and New Zealand, whose population dynamics are poorly understood. Acoustic telemetry was used to assess movement patterns and area use for R. tapirina in the Murray River estuary and Coorong, South Australia. Twenty fish (221-313 mm total length) equipped with acoustic transmitters were monitored for up to seven months during a period of high freshwater inflow. Fish were detected over a large part of the system, but showed a strong preference for brackish and near-marine conditions in the inner estuary. Tagged fish exhibited complex movement patterns that differed among individuals, including: (1) within estuary movements; (2) dispersal from the estuary to the sea; and (3) return migrations between the estuary and the sea. A diurnal shift in fine-scale area use was observed in the part of the estuary where residency was highest, with individuals occupying deeper habitats during the day and shallower areas during the night. The results demonstrate the individualistic and often highly transient behaviour of this species and its ability to undertake regular movements over the spatial scale of 10s of km. Understanding such movement patterns can improve effective management of estuarine flatfish populations and ecosystems.

  20. Perceptions of the Decision Process though Drought and Flood in the Murray-Darling Basin, Australia

    NASA Astrophysics Data System (ADS)

    Lynch, A. H.; Adler, C.; Howard, N.

    2012-12-01

    The Murray-Darling Basin incorporates Australia's three longest rivers and spans four States and one Territory. It is important for an agricultural industry worth more than AUS$9 billion per year, but is also the life source and spirit of the Indigenous Yorta Yorta people. Persistent severe drought and extreme flooding episodes have presented new challenges in the region. The exceptionally wet conditions experienced since the break of the "Millenium Drought" beg the question as to whether key drought and flood characteristics are changing due to anthropogenic climate change. Many alternative goals for the management of the Basin answer to the requirement for an evidentiary basis. A choice cannot be made on this basis alone - interests are implicated in any alternative. Here we use Q methodology, an approach that elucidates patterns of subjectivity, to explore the perspectives of Indigenous and non-Indigenous residents, workers and decision-makers in the region. We address the inherent diversity of viewpoints on the risks from and responses to flood and drought, and identify the potential for common ground.

  1. Risk management frameworks: supporting the next generation of Murray-Darling Basin water sharing plans

    NASA Astrophysics Data System (ADS)

    Podger, G. M.; Cuddy, S. M.; Peeters, L.; Smith, T.; Bark, R. H.; Black, D. C.; Wallbrink, P.

    2014-09-01

    Water jurisdictions in Australia are required to prepare and implement water resource plans. In developing these plans the common goal is realising the best possible use of the water resources - maximising outcomes while minimising negative impacts. This requires managing the risks associated with assessing and balancing cultural, industrial, agricultural, social and environmental demands for water within a competitive and resource-limited environment. Recognising this, conformance to international risk management principles (ISO 31000:2009) have been embedded within the Murray-Darling Basin Plan. Yet, to date, there has been little strategic investment by water jurisdictions in bridging the gap between principle and practice. The ISO 31000 principles and the risk management framework that embodies them align well with an adaptive management paradigm within which to conduct water resource planning. They also provide an integrative framework for the development of workflows that link risk analysis with risk evaluation and mitigation (adaptation) scenarios, providing a transparent, repeatable and robust platform. This study, through a demonstration use case and a series of workflows, demonstrates to policy makers how these principles can be used to support the development of the next generation of water sharing plans in 2019. The workflows consider the uncertainty associated with climate and flow inputs, and model parameters on irrigation and hydropower production, meeting environmental flow objectives and recreational use of the water resource. The results provide insights to the risks associated with meeting a range of different objectives.

  2. Preliminary Results of the Investigation of the Carbonaceous Chondrites Nagoya, Allende, and Murray

    NASA Technical Reports Server (NTRS)

    Rozanov, Alexei Yu.; Hoover, Richard B.; Rose, M. Franklin (Technical Monitor)

    2000-01-01

    As part of a long-term study of morphological biomarkers in Astromaterials, we are documenting a variety of features considered to be indigenous to ancient terrestrial rocks and carbonaceous meteorites. In preparation for the study of samples returned from Mars and other bodies of our Solar System, it is imperative that we establish a database of the nature and morphology of known bacterial fossils in Earth rocks and biomorphic microstructures which may represent microfossils in meteorites. The process of fossilization or mineralization can cause major changes in morphologies and textures of the original organisms and the study of fossilized terrestrial organisms can help provide insight into the interpretation of mineral biomarkers and abiotic microstructures which may mimic certain aspects of microfossils. One class of biomarkers consists of biominerals which have either been precipitated directly by microorganisms, or whose precipitation has been influenced by the organisms. Such microbe-mediated mineral formation may include important clues to the size, shape, and environment of the microorganisms. This paper describes the detection of possible microbe-mediated minerals, biomorphic microstructures and possible microfossils in the Nagoya, Allende, and Murray Carbonaceous Chondrites.

  3. Murray Valley encephalitis in Western Australia in 2000, with evidence of southerly spread.

    PubMed

    Cordova, S P; Smith, D W; Broom, A K; Lindsay, M D; Dowse, G K; Beers, M Y

    2000-12-01

    We describe the epidemiological and clinical features of human Murray Valley encephalitis (MVE) and Kunjin (KUN) virus infections in Western Australia (WA) during March to July 2000. A case series was performed. For laboratory-confirmed cases, travel histories and clinical details were collected from patients, family members, friends or treating physicians. Surveillance data from the sentinel chicken program and climatic conditions were reviewed. Nine encephalitic cases of MVE were recorded. Eight were non-Aboriginal adults (age range, 25 to 79 years; 5 male, 3 female) and 1 was an Aboriginal boy. Four cases acquired infection in the Murchison and Midwest regions of WA from which no human cases of MVE have been reported previously. One of the 9 cases was fatal and 3 had severe neurological sequelae. Five non-encephalitic infections were also recorded, 3 MVE and 2 KUN. Encephalitis caused by MVE virus remains a serious problem with no improvement in clinical outcomes in the last 25 years. Excessive rainfall with widespread flooding in the northern two-thirds of WA provided ideal conditions for mosquito breeding and favoured southerly spread of the virus into new and more heavily populated areas. Surveillance in WA with sentinel chickens and mosquito trapping needs expansion to define the boundaries of MVE virus activity. To enable timely warnings to the public, and to institute mosquito control where feasible, continued surveillance in all Australian areas at risk is indicated.

  4. AUTOMATED NanoSIMS MEASUREMENTS OF SPINEL STARDUST FROM THE MURRAY METEORITE

    SciTech Connect

    Gyngard, Frank; Zinner, Ernst; Stadermann, Frank J.; Hynes, K. Mairin; Nittler, Larry R.; Morgand, Alain

    2010-07-01

    We report new O isotopic data on 41 presolar oxide grains, 38 MgAl{sub 2}O{sub 4} (spinel) and 3 Al{sub 2}O{sub 3} from the CM2 meteorite Murray, identified with a recently developed automated measurement system for NanoSIMS. We have also obtained Mg-Al isotopic results on 29 of the same grains (26 spinel and 3 Al{sub 2}O{sub 3}). The majority of the grains have O isotopic compositions typical of most presolar oxides, fall well into the four previously defined groups, and are most likely condensates from either red giant branch or asymptotic giant branch stars. We have also discovered several grains with more unusual O and Mg compositions suggesting formation in extreme astrophysical environments, such as novae and supernovae (SNe). One of these grains has massive enrichments in {sup 17}O, {sup 25}Mg, and {sup 26}Mg, which are isotopic signatures indicative of condensation from nova ejecta. Two grains of SN origin were also discovered: one has a large {sup 18}O/{sup 16}O ratio typical of Group 4 presolar oxides; another grain is substantially enriched in {sup 16}O, and also contains radiogenic {sup 44}Ca from the decay of {sup 44}Ti, a likely condensate from material originating in the O-rich inner zones of a Type II SN. In addition, several Group 2 presolar spinel grains also have large {sup 25}Mg and {sup 26}Mg isotopic anomalies that are difficult to explain by standard nucleosynthesis in low-mass stars. Auger elemental spectral analyses were performed on the grains and qualitatively suggest that presolar spinel may not have higher-than-stoichiometric Al/Mg ratios, in contrast to SIMS results obtained here and reported previously.

  5. Late Diagenetic Cements in the Murray Formation, Gale Crater, Mars: Implications for Postdepositional Fluid Flow

    NASA Astrophysics Data System (ADS)

    Kah, L. C.; Kronyak, R. E.; Van Beek, J.; Nachon, M.; Mangold, N.; Thompson, L. M.; Wiens, R. C.; Grotzinger, J. P.; Schieber, J.

    2015-12-01

    The Murray formation in its type section at Pahrump Hills, consists of approximately 14 meters of recessive-weathering mudstone interbedded with decimeter-scale cross-bedded sandstone in the upper portions of the exposed section. Mudstone textures vary from massive, to poorly laminated, to well laminated. Unusual 3-dimensional crystal clusters and dendrites occur in the lowermost part of the section and are erosionally resistant with respect to the host rock. Crystal clusters consist of elongate lathes that occur within individual blocks of the fractured substrate. Individual lathes show tabular morphologies with a pseudo-rectangular cross-section and the three dimensional morphology of the crystal clusters cross-cut host rock lamination with little or no deformation. Dendritic structures are typically larger and show predominantly planar growth aligned with bedding planes. Individual lathes within the dendrites are elongate and pseudo-rectangular in cross-section. Unlike crystal clusters, dendritic morphologies appear to nucleate at bedrock fractures and near mineralized veins. Here we show evidence that crystal clusters and dendrites are post-depositional, potentially burial diagenetic features. Association of features with through-going fractures suggests that fractures may have been a primary transport pathway for ions responsible for dendrite growth. Even where dendrites do not occur, enhanced cementation suggests that fluids permeated the rock matrix. We suggest that growth of clusters proceeded as inter-particle crystal growth, wherein mineral growth within inter-particle spaces resulted in cementation and porosity loss, with little further effect on the rock matrix. Crystal clusters and dendrites are most likely to form when mineral saturation states are highest, for instance with initial intrusion of fracture-borne fluids and mixing with ambient pore fluids, and thus emphasize the importance of fractures in ion transport during late diagenesis.

  6. Spatial differentiation of landscape values in the Murray River region of Victoria, Australia.

    PubMed

    Zhu, Xuan; Pfueller, Sharron; Whitelaw, Paul; Winter, Caroline

    2010-05-01

    This research advances the understanding of the location of perceived landscape values through a statistically based approach to spatial analysis of value densities. Survey data were obtained from a sample of people living in and using the Murray River region, Australia, where declining environmental quality prompted a reevaluation of its conservation status. When densities of 12 perceived landscape values were mapped using geographic information systems (GIS), valued places clustered along the entire river bank and in associated National/State Parks and reserves. While simple density mapping revealed high value densities in various locations, it did not indicate what density of a landscape value could be regarded as a statistically significant hotspot or distinguish whether overlapping areas of high density for different values indicate identical or adjacent locations. A spatial statistic Getis-Ord Gi* was used to indicate statistically significant spatial clusters of high value densities or "hotspots". Of 251 hotspots, 40% were for single non-use values, primarily spiritual, therapeutic or intrinsic. Four hotspots had 11 landscape values. Two, lacking economic value, were located in ecologically important river red gum forests and two, lacking wilderness value, were near the major towns of Echuca-Moama and Albury-Wodonga. Hotspots for eight values showed statistically significant associations with another value. There were high associations between learning and heritage values while economic and biological diversity values showed moderate associations with several other direct and indirect use values. This approach may improve confidence in the interpretation of spatial analysis of landscape values by enhancing understanding of value relationships.

  7. Spatial Differentiation of Landscape Values in the Murray River Region of Victoria, Australia

    NASA Astrophysics Data System (ADS)

    Zhu, Xuan; Pfueller, Sharron; Whitelaw, Paul; Winter, Caroline

    2010-05-01

    This research advances the understanding of the location of perceived landscape values through a statistically based approach to spatial analysis of value densities. Survey data were obtained from a sample of people living in and using the Murray River region, Australia, where declining environmental quality prompted a reevaluation of its conservation status. When densities of 12 perceived landscape values were mapped using geographic information systems (GIS), valued places clustered along the entire river bank and in associated National/State Parks and reserves. While simple density mapping revealed high value densities in various locations, it did not indicate what density of a landscape value could be regarded as a statistically significant hotspot or distinguish whether overlapping areas of high density for different values indicate identical or adjacent locations. A spatial statistic Getis-Ord Gi* was used to indicate statistically significant spatial clusters of high value densities or “hotspots”. Of 251 hotspots, 40% were for single non-use values, primarily spiritual, therapeutic or intrinsic. Four hotspots had 11 landscape values. Two, lacking economic value, were located in ecologically important river red gum forests and two, lacking wilderness value, were near the major towns of Echuca-Moama and Albury-Wodonga. Hotspots for eight values showed statistically significant associations with another value. There were high associations between learning and heritage values while economic and biological diversity values showed moderate associations with several other direct and indirect use values. This approach may improve confidence in the interpretation of spatial analysis of landscape values by enhancing understanding of value relationships.

  8. Ichnological assemblages as depositional environmental indicators in McMurray Formation: Athabasca oil sands of northeastern Alberta

    SciTech Connect

    Mattison, B.W.; Pemberton, S.G.

    1987-05-01

    Detailed study of over 100 drill core from an area of extreme core control within the surface mining area of the McMurray Formation of the Athabasca oil sands reveals that trace fossil assemblages may be extremely useful both in interpreting the depositional history of the deposits and ultimately in developing an effective mining strategy based on the prediction of high-grade reservoir trends. Distinct trace fossil suites characterize distinct environmental facies within all but the lowermost sections of the McMurray Formation and indicate deposition within a marginal marine setting. The formation itself may be divided into three members, reflecting a depositional evolution from primarily paludal and fluviatile into estuarine (containing intimately associated estuarine channel, channel margin, and tidal flat sediments) and finally into highly bioturbated shoreface sediments. Environmental microfacies breakdown of this broad three-fold division is based primarily on an understanding of trace fossil dynamics in tidally influenced marginal marine depositional systems. Highest-grade reservoirs are restricted to the middle unit of the McMurray within estuarine channels. Prediction of the trends of these channels is accomplished through highly detailed mapping made possible by close core control. In this way, the channelized reservoirs may be exploited with the mining of as little waste rock (typically channel margin and tidal flat silts and muds) as possible. An understanding of trace fossils (which may at first glance seem to be rather innocuous structures) may thus prove to be an extremely powerful aid in the delineation and profitable development of this immensely important resource.

  9. The doctor and the rebels--the diary of Charles Molteno Murray, recorded during the 1914 Boer rebellion.

    PubMed

    Murray, R

    2000-12-01

    Just 12 years after the conclusion of the Anglo-Boer war, South Africa was led by ex-Boer Generals Botha and Smuts into what was to become the Great War, on the side of the British. This was utterly unacceptable to thousands of Boers who had engaged in a bitter struggle, against overwhelming odds, to prevent their country from becoming part of the mighty British Empire. Led by Generals de Wet, Beyers, and de la Rey, Lieutenant-Colonel Maritz and Major Kemp, they took up arms in a doomed rebellion, without proper weapons, equipment or organisation--by the time they were defeated the casualty figures for both sides exceeded those that would later result from the German South West campaign. Charles Molteno Murray, 37 years old, was a GP in Kenilworth, Cape Town, at the time. His father was an Irish immigrant doctor, his mother the daughter of the first Prime Minister of the Cape, Sir John Charles Molteno. In spite of having a busy and successful practice, with a surgical appointment at Victoria Hospital, Charles Murray volunteered for duty and soon found himself in the Orange Free State and northern Cape, caring for the wounded and dying of both sides in the rebellion. He kept a meticulous record of his experiences, written on loose-leaf pages sent as letters to his wife, which were later bound into leather-backed diaries. These diaries were passed on to his grandson, Dr Robert Murray, who had them transcribed into modern format. They contain details of daily life in the midst of military action, and also insights into important and little-publicised events of the Boer Rebellion of 1914.

  10. Chemo-stratigraphy in the Murray Formation Using ChemCam

    NASA Astrophysics Data System (ADS)

    Blaney, D. L.; Anderson, R. B.; Bridges, N.; Bridges, J.; Calef, F. J., III; Clegg, S. M.; Le Deit, L.; Fisk, M. R.; Forni, O.; Gasnault, O.; Kah, L. C.; Kronyak, R. E.; Lanza, N.; Lasue, J.; Mangold, N.; Maurice, S.; Milliken, R.; Ming, D. W.; Nachon, M.; Newsom, H. E.; Rapin, W.; Stack, K.; Sumner, D. Y.; Wiens, R. C.

    2015-12-01

    Curiosity has completed a detailed chemo-stratigraphy analysis at the Pahrump exposure of the Murray formation. In total >570 chemical measurements and supporting remote micro images to classify texturally were collected. Chemical trends with both stratigraphic position and with texture were evaluated. From these data emerges a complex aqueous history where sediments have interacted with fluids with variable chemistry in distinct episodes. The ChemCam data collected at the nearby "Garden City" (GC) vein complex provides constraints on the chemical evolution of the Pahrump. GC is thought be stratigraphically above the Pahrump outcrop. Fluids producing the veins likely also migrated through the Pahrump sediments. Multiple episodes of fluids are evident at GC, forming distinct Ca sulfate, F-rich, enhanced MgO, and FeO-rich veins. These different fluid chemistries could be the result of distinct fluids migrating through the section from a distance with a pre-established chemical signature, fluids locally evolved from water rock interactions, or both. Texturally rocks have been classified into two distinct categories: fine grained or as cross-bedded sandstones. The sandstones have significantly lower SiO2, Al2O3, and K2O and higher FeO, and CaO. Fine grained rocks have further been sub-classified as resistant and recessive with other textural features such as laminations and pits noted.The strongest chemical trend in the fine-grained sandstones shows enhancements in MgO and FeO in erosion-resistant materials compared to fine grained recessive units, suggesting that increased abundance of Mg- and/or iron-rich cements may provide additional strength. The MgO and FeO variations with texture are independent of stratigraphic locations (e.g resistant material at both the bottom and top of the outcrop both are enhanced in MgO and FeO). The presence of the GC MgO and FeO rich veins provides additional evidence for fluids rich in these elements were present in the outcrop. Other

  11. A review of historic and future hydrological changes in the Murray-Darling Basin

    NASA Astrophysics Data System (ADS)

    Leblanc, Marc; Tweed, Sarah; Van Dijk, Albert; Timbal, Bertrand

    2012-01-01

    The Murray-Darling Basin is Australia's food bowl and home to many iconic water bodies that are culturally and ecologically highly valued. The recent Millennium Drought (from mid-1990s to 2009) was the most severe hydrological drought since records started in the late 19th century. It severely impacted on the basin and for many acted as a wake-up call. To address the ongoing declines in water resources and environmental conditions and to prepare the region for climate change, Australia's Governments are currently attempting to introduce a new comprehensive, and integrated approach to the management of the basin's water resources. In this paper, long-term time series of climate, hydrological and environmental data are used to analyze how compounding stresses have gradually affected the hydrological system and its services. Major hydroclimatic stresses considered in this paper include salinity, water use, droughts, and climate change. Other, more localized or minor stresses exist (groundwater extraction, farm dams, afforestation, bush fires, cyanobacterial blooms and pollutants) and are reviewed more briefly. The history of water policy and planning shows that Government actions have been strongly influential on the basin. A shift in the strategic goals from water development to the protection and restoration of environmental assets is noticeable since the mid 1990s. Median climate change projections by 2030 indicate smaller reductions in rainfall and runoff than those observed during the recent Millennium Drought, but have a relatively high uncertainty attached to them. The use of regional approaches to reduce that uncertainty, such as statistical downscaling, points to a sizeable decline in rainfall by the end of the century. Most climate projections used for planning consider greenhouse emission scenarios that have smaller global emission trends than the one observed over the last decade. Other, 'less optimistic' scenarios have to be considered for long-term water

  12. Prioritizing Wetlands for Waterbirds in a Boom and Bust System: Waterbird Refugia and Breeding in the Murray-Darling Basin.

    PubMed

    Bino, Gilad; Kingsford, Richard T; Porter, John

    2015-01-01

    Dryland rivers have considerable flow variability, producing complex ecosystems, processes, and communities of organisms that vary over space and time. They are also among the more vulnerable of the world's ecosystems. A key strategy for conservation of dryland rivers is identifying and maintaining key sites for biodiversity conservation, particularly protecting the quantity and quality of flow and flooding regimes. Extreme variability considerably challenges freshwater conservation planning. We systematically prioritised wetlands for waterbirds (simultaneously for 52 species), across about 13.5% of the Murray-Darling Basin (1,061,469 km2), using a 30-year record of systematic aerial surveys of waterbird populations. Nine key wetlands in this area, primarily lakes, floodplains, and swamps, consistently contributed to a representation target (80%) of total abundances of all 52 waterbird species. The long temporal span of our data included dramatic availability (i.e., booms) and scarcity (i.e., busts) of water, providing a unique opportunity to test prioritisation at extremes of variation. These extremes represented periods when waterbirds were breeding or concentrating on refugia, varying wetland prioritisation. In dry years, important wetlands for waterbirds were riverine and lacustrine (12 wetlands) but this changed in wet years to lacustrine and palustrine (8 wetlands). Such variation in ecosystem condition substantially changes the relative importance of individual wetlands for waterbirds during boom and bust phases. Incorporating this variability is necessary for effective conservation of Murray-Darling Basin waterbirds, with considerable generality for other similarly variable systems around the world.

  13. Dynamics of Murray-Darling floodplain forests under multiple stressors: The past, present, and future of an Australian icon

    NASA Astrophysics Data System (ADS)

    Mac Nally, Ralph; Cunningham, Shaun C.; Baker, Patrick J.; Horner, Gillis J.; Thomson, James R.

    2011-12-01

    We review the human actions, proximal stressors and ecological responses for floodplain forests Australia's largest river system—the Murray-Darling Basin. A conceptual model for the floodplain forests was built from extensive published information and some unpublished results for the system, which should provide a basis for understanding, studying and managing the ecology of floodplains that face similar environmental stresses. Since European settlement, lowlands areas of the basin have been extensively cleared for agriculture and remnant forests heavily harvested for timber. The most significant human intervention is modification of river flows, and the reduction in frequency, duration and timing of flooding, which are compounded by climate change (higher temperatures and reduced rainfall) and deteriorating groundwater conditions (depth and salinity). This has created unfavorable conditions for all life-history stages of the dominant floodplain tree (Eucalyptus camaldulensis Dehnh.). Lack of extensive flooding has led to widespread dieback across the Murray River floodplain (currently 79% by area). Management for timber resources has altered the structure of these forests from one dominated by large, widely spreading trees to mixed-aged stands of smaller pole trees. Reductions in numbers of birds and other vertebrates followed the decline in habitat quality (hollow-bearing trees, fallen timber). Restoration of these forests is dependent on substantial increases in the frequency and extent of flooding, improvements in groundwater conditions, re-establishing a diversity of forest structures, removal of grazing and consideration of these interacting stressors.

  14. Noachian Impact Ejecta on Murray Ridge and Pre-impact Rocks on Wdowiak Ridge, Endeavour Crater, Mars: Opportunity Observations

    NASA Technical Reports Server (NTRS)

    Mittlefehldt, D. W.; Gellert, R.; Ming, D. W.; Morris, R. V.; Schroeder, C.; Yen, A. S.; Farrand, W. H.; Arvidson, R. E.; Franklin, B. J.; Grant, J. A.; Herkenhoff, K. E.; Jolliff, B. J.

    2015-01-01

    Mars Exploration Rover Opportunity has been exploring Meridiani Planum since January 2004, and has completed 4227% of its primary mission. Opportunity has been investigating the geology of the rim of 22 km diameter Endeavour crater, first on the Cape York segment and now on Cape Tribulation. The outcrops are divided York; (ii) the Shoemaker fm, impact breccias representing ejecta from the crater; into three formations: (i) the lower Matijevic fm, a pre-impact lithology on Cape and (iii) the upper Grasberg fm, a post-impact deposit that drapes the lower portions of the eroded rim segments. On the Cape Tribulation segment Opportunity has been studying the rocks on Murray Ridge, with a brief sojourn to Wdowiak Ridge west of the rim segment. team member Thomas Wdowiak, who died in 2013.) One region of Murray Ridge has distinctive CRISM spectral characteristics indicating the presence of a small concentration of aluminous smectite based on a 2.2 micron Al-OH combination band (hereafter, the Al-OH region).

  15. GRACE Assimilation into Hydrological Model Improves Representation of Drought-induced Groundwater Trend over Murray-Darling Basin, Australia

    NASA Astrophysics Data System (ADS)

    Schumacher, Maike; Forootan, Ehsan; Van Dijk, Albert I. J. M.; Müller Schmied, Hannes; Crosbie, Russell S.; Kusche, Jürgen; Döll, Petra

    2016-04-01

    The Murray-Darling Basin, one of the largest and driest river basins over the world, experienced a long-term drought (over 2003-2009), the so-called Millennium Drought. As a result, the terrestrial water storage in the region decreased, which was attributed to dry meteorological conditions and extensive irrigation for agriculture. We used simulations of the WaterGAP Global Hydrology Model (WGHM) driven by monthly climate fields from the Climate Research Unit's Time Series (CRU TS 3.2) and precipitation data from the Global Precipitation Climatology Center (GPCC) to estimate linear trends in soil, surface and groundwater compartments, as well as total water storage changes (TWSC). However, the model was not able to capture the effect of the Millennium Drought on the storage compartments likely due to missing processes in dry regions or climate forcing uncertainties. Particularly, TWSC simulated by standard WGHM did not reproduce the negative trend during 2003-2009. Therefore, in this study, we investigate whether assimilating TWSC from the Gravity Recovery And Climate Experiment (GRACE) satellite mission into WGHM enables a more realistic representation of the Millennium Drought on the basin hydrology. Firstly, the quality of monthly GRACE TWSC and its post-processing over the Murray-Darling Basin was assessed. An improved calibration and data assimilation (C/DA) approach (Schumacher et al., JoG-2016) was then applied to integrate GRACE TWSC along with its full error covariance information into WGHM during 2003-2009. Independent observations of soil moisture, groundwater and surface water extent were used to validate the model outputs after C/DA. Our investigations indicate that the integration of GRACE data indeed introduces a negative trend to TWSC simulations of WGHM, which occurred predominantly in the south (Murray Basin). The trend was found to be associated with the changes in groundwater storage, which was confirmed through validation with in

  16. Fully integrated physically-based numerical modelling of impacts of groundwater extraction on surface and irrigation-induced groundwater interactions: case study Lower River Murray, Australia

    NASA Astrophysics Data System (ADS)

    Alaghmand, S.; Beecham, S.; Hassanli, A.

    2013-07-01

    Combination of reduction in the frequency, duration and magnitude of natural floods, rising saline water-table in floodplains and excessive evapotranspiration have led to an irrigation-induced groundwater mound forced the naturally saline groundwater onto the floodplain in the Lower River Murray. It is during the attenuation phase of floods that these large salt accumulations are likely to be mobilised and will discharge into the river. The Independent Audit Group for Salinity highlighted this as the most significant risk in the Murray-Darling Basin. South Australian government and catchment management authorities have developed salt interception schemes (SIS). This is to pump the highly saline groundwater from the floodplain aquifer to evaporation basins in order to reduce the hydraulic gradient that drives the regional saline groundwater towards the River Murray. This paper investigates the interactions between a river (River Murray in South Australia) and a saline semi-arid floodplain (Clarks Floodplain) significantly influenced by groundwater lowering (Bookpurnong SIS). Results confirm that groundwater extraction maintain a lower water-table and more fresh river water flux to the saline floodplain aquifer. In term of salinity, this may lead to less amount of solute stored in the floodplain aquifer. This occurs through two mechanisms; extracting some of the solute mass from the system and changing the floodplain groundwater regime from a losing to gaining one. Finally, it is shown that groundwater extraction is able to remove some amount of solute stored in the unsaturated zone and mitigate the floodplain salinity risk.

  17. A Survey of Industrial Arts Teacher Education and Technical/Technology Graduates of Murray State University with Implications for Curriculum Revision.

    ERIC Educational Resources Information Center

    Winters, Kenneth Wayne

    Responses from 195 (89.4 percent) of 218 graduates during 1965-69 provided information which related to the present status and effectiveness of the industrial arts teacher education and the industrial technical/technology programs at Murray State University. Conclusions were: (1) 90 percent of the teacher education graduates and 60 percent of the…

  18. Addressing the Challenges of Diverse Knowledge Systems through Landscape Analysis: A Case Study in the Murray-Darling Basin, Australia

    NASA Astrophysics Data System (ADS)

    Lynch, A. H.; Griggs, D.; Joachim, L.; Heider, C.

    2014-12-01

    The Barmah-Millewa region of the Murray-Darling Basin is the heart of the Traditional Lands of the Yorta Yorta people. Management of water and ecosystem services in the region is governed by a wide array of sometimes inconsistent legislation and policies with differing rules, management focus and plans, and permitting and allocation procedures. Geographic information systems are a common framework for the integration of Indigenous knowledge and insights into natural resources management. But only with appropriate collection, management and database design protocols in place can geodatabase development and analysis support the effective and respectful participation of the Yorta Yorta community in management of this ecologically, economically and culturally important region. Here we describe the knowledge collection and protection protocols that were applied to develop the integrated geodatabase. We present approaches to generating meaningful guidance for water managers on the cultural implications of water allocation decisions.

  19. Comparison of proteins specified by Murray Valley encephalitis, West Nile, Japanese encephalitis and St. Louis encephalitis viruses.

    PubMed

    Wright, P J; Warr, H M

    1986-10-01

    The relationships among proteins specified by Murray Valley encephalitis (MVE), West Nile (WN), Japanese encephalitis (JE) and St. Louis encephalitis (SLE) viruses were examined by peptide mapping. [3H]methionine-labelled tryptic peptides of viral proteins were separated by reverse phase high performance liquid chromatography (HPLC) and the separation profiles for a given protein specified by the different viruses were compared. Analyses of the non-structural protein NV5 (P98 or NS5) suggested that WN and SLE were the most closely related pair of viruses, and that JE was the virus most distant from the other three. Analyses of the structural proteins C and E failed to show the close relationship between WN and SLE indicated by the NV5 results, but did suggest that NV5 was the most conserved and E the least conserved of the three proteins.

  20. Use of three monitoring approaches to manage a major Chrysosporum ovalisporum bloom in the Murray River, Australia, 2016.

    PubMed

    Crawford, Adam; Holliday, Jon; Merrick, Chester; Brayan, John; van Asten, Mark; Bowling, Lee

    2017-04-01

    An unusual bloom of Chrysosporum ovalisporum (basionym Aphanizomenon ovalisporum) occurred for the first time in the Murray River and distributary rivers in New South Wales, Australia, from mid-February to early June 2016. At its greatest extent, it contaminated a combined river length of ca. 2360 km. Chrysosporum ovalisporum usually comprised >99% of the total bloom biovolume at most locations sampled, which at times exceeded 40 mm(3) l(-1). The origins of the bloom were most likely reservoirs on the upper Murray River, with cyanobacterial-infested water released from them contaminating the river systems downstream. An integrated approach using three analytical methods: (1) identification and enumeration by microscopy, (2) multiplex quantitative polymerase chain reaction (qPCR), and (3) toxin analysis, was used to obtain data for the assessment of risk to water users and management of the bloom. qPCR indicated some cyrA and stxA genes responsible for cylindrospermopsin and saxitoxin biosynthesis respectively were present, but mostly below the level of quantification. No mcyE genes for microcystin biosynthesis were detected. Toxin analysis also revealed that cylindrospermopsin, saxitoxin and microcystin were all below detection. Lack of measurable toxicity in a species usually considered a cylindrospermopsin producer elsewhere meant the possibility of relaxing management guidelines; however, high (Red) alerts needed to be maintained due to risk to water users from other biohazards potentially produced by the cyanobacteria such as contact irritants. A three-tiered monitoring strategy is suggested for monitoring cyanobacterial blooms to provide enhanced data for bloom management.

  1. The Fort McMurray Demonstration Project in Social Marketing: no demonstrable effect on already falling injury rates following intensive community and workplace intervention.

    PubMed

    Guidotti, Tee L; Deb, Pooja; Bertera, Robert; Ford, Lynda

    2009-10-01

    The Fort McMurray Demonstration Project in Social Marketing attempted to achieve mutually reinforcing effects from thematically coordinated educational and awareness efforts in the community as a whole and in the workplace and the inclusion of occupational safety within the framework of a community health promotion project. The study community was Fort McMurray, a small, industrial city in northern Alberta. The Mistahiai Health Region, several hundred kilometers to the west and also dominated by one city, Grande Prairie, served as the reference community. The intervention was based on media and events staged at public events, with supporting educational activities in schools and the community. It relied heavily on community-based partners and volunteers. Data on healthcare utilization of selected preventable injuries were obtained from Alberta Health for the time period 1990-1996 for the Regional Health Authorities of Northern Lights, where the only large population centre is Fort McMurray, and Mistahia. Age-adjusted aggregate injury rates were analyzed for evidence of an effect of the intervention. Severity was measured by proxy, using the number of diagnostic claims submitted for reimbursement for medical services in a given year. The communities differed in age-specific injury rates, with Fort McMurray showing higher rates for residents aged less than 55. Young adults and older adolescents showed higher levels of severity. Injury rates fell substantially and at similar rates in both communities over the five-year period. However, in both communities injury rates were already falling before the intervention in Fort McMurray began and continued to fall at about the same rate, slowing toward the end of the period. No evidence was found for an effect of the Project or for acceleration of the reduction in injury frequency in the intervention area. Over the period, fewer medical services were delivered in office settings and more in emergency rooms, in both

  2. MABAHISS/John Murray 50th Anniversary: Marine Science of the North West Indian Ocean and Adjacent Waters. Report of a Symposium on the Occasion of the 50th Anniversary of the MABAHISS/John Murray Expedition (1933/34) (Alexandria, Egypt, September 3-7, 1983). Unesco Reports in Marine Science, No. 31.

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific, and Cultural Organization, Paris (France). Div. of Marine Sciences.

    An international symposium was convened to celebrate the 50th anniversary of the John Murray Expedition to the Indian Ocean on board the Egyptian research vessel Mabahiss (1933-1934). This report describes the symposium and provides abstracts and syntheses of the papers presented in the various marine scientific disciplines covering the areas of…

  3. Honey Bee Apis mellifera Parasites in the Absence of Nosema ceranae Fungi and Varroa destructor Mites

    PubMed Central

    Shutler, Dave; Head, Krista; Burgher-MacLellan, Karen L.; Colwell, Megan J.; Levitt, Abby L.; Ostiguy, Nancy; Williams, Geoffrey R.

    2014-01-01

    Few areas of the world have western honey bee (Apis mellifera) colonies that are free of invasive parasites Nosema ceranae (fungi) and Varroa destructor (mites). Particularly detrimental is V. destructor; in addition to feeding on host haemolymph, these mites are important vectors of several viruses that are further implicated as contributors to honey bee mortality around the world. Thus, the biogeography and attendant consequences of viral communities in the absence of V. destructor are of significant interest. The island of Newfoundland, Province of Newfoundland and Labrador, Canada, is free of V. destructor; the absence of N. ceranae has not been confirmed. Of 55 Newfoundland colonies inspected visually for their strength and six signs of disease, only K-wing had prevalence above 5% (40/55 colonies = 72.7%). Similar to an earlier study, screenings again confirmed the absence of V. destructor, small hive beetles Aethina tumida (Murray), tracheal mites Acarapis woodi (Rennie), and Tropilaelaps spp. ectoparasitic mites. Of a subset of 23 colonies screened molecularly for viruses, none had Israeli acute paralysis virus, Kashmir bee virus, or sacbrood virus. Sixteen of 23 colonies (70.0%) were positive for black queen cell virus, and 21 (91.3%) had some evidence for deformed wing virus. No N. ceranae was detected in molecular screens of 55 colonies, although it is possible extremely low intensity infections exist; the more familiar N. apis was found in 53 colonies (96.4%). Under these conditions, K-wing was associated (positively) with colony strength; however, viruses and N. apis were not. Furthermore, black queen cell virus was positively and negatively associated with K-wing and deformed wing virus, respectively. Newfoundland honey bee colonies are thus free of several invasive parasites that plague operations in other parts of the world, and they provide a unique research arena to study independent pathology of the parasites that are present. PMID:24955834

  4. Honey bee Apis mellifera parasites in the absence of Nosema ceranae fungi and Varroa destructor mites.

    PubMed

    Shutler, Dave; Head, Krista; Burgher-MacLellan, Karen L; Colwell, Megan J; Levitt, Abby L; Ostiguy, Nancy; Williams, Geoffrey R

    2014-01-01

    Few areas of the world have western honey bee (Apis mellifera) colonies that are free of invasive parasites Nosema ceranae (fungi) and Varroa destructor (mites). Particularly detrimental is V. destructor; in addition to feeding on host haemolymph, these mites are important vectors of several viruses that are further implicated as contributors to honey bee mortality around the world. Thus, the biogeography and attendant consequences of viral communities in the absence of V. destructor are of significant interest. The island of Newfoundland, Province of Newfoundland and Labrador, Canada, is free of V. destructor; the absence of N. ceranae has not been confirmed. Of 55 Newfoundland colonies inspected visually for their strength and six signs of disease, only K-wing had prevalence above 5% (40/55 colonies = 72.7%). Similar to an earlier study, screenings again confirmed the absence of V. destructor, small hive beetles Aethina tumida (Murray), tracheal mites Acarapis woodi (Rennie), and Tropilaelaps spp. ectoparasitic mites. Of a subset of 23 colonies screened molecularly for viruses, none had Israeli acute paralysis virus, Kashmir bee virus, or sacbrood virus. Sixteen of 23 colonies (70.0%) were positive for black queen cell virus, and 21 (91.3%) had some evidence for deformed wing virus. No N. ceranae was detected in molecular screens of 55 colonies, although it is possible extremely low intensity infections exist; the more familiar N. apis was found in 53 colonies (96.4%). Under these conditions, K-wing was associated (positively) with colony strength; however, viruses and N. apis were not. Furthermore, black queen cell virus was positively and negatively associated with K-wing and deformed wing virus, respectively. Newfoundland honey bee colonies are thus free of several invasive parasites that plague operations in other parts of the world, and they provide a unique research arena to study independent pathology of the parasites that are present.

  5. Parametric and adsorption kinetic studies of methylene blue removal from simulated textile water using durian (Durio zibethinus murray) skin.

    PubMed

    Anisuzzaman, S M; Joseph, Collin G; Krishnaiah, D; Bono, A; Ooi, L C

    2015-01-01

    In this study, durian (Durio zibethinus Murray) skin was examined for its ability to remove methylene blue (MB) dye from simulated textile wastewater. Adsorption equilibrium and kinetics of MB removal from aqueous solutions at different parametric conditions such as different initial concentrations (2-10 mg/L), biosorbent dosages (0.3-0.7 g) and pH solution (4-9) onto durian skin were studied using batch adsorption. The amount of MB adsorbed increased from 3.45 to 17.31 mg/g with the increase in initial concentration of MB dye; whereas biosorbent dosage increased from 1.08 to 2.47 mg/g. Maximum dye adsorption capacity of the durian skin was found to increase from 3.78 to 6.40 mg/g, with increasing solution pH. Equilibrium isotherm data were analyzed according to Langmuir and Freundlich isotherm models. The sorption equilibrium was best described by the Freundlich isotherm model with maximum adsorption capacity of 7.23 mg/g and this was due to the heterogeneous nature of the durian skin surface. Kinetic studies indicated that the sorption of MB dye tended to follow the pseudo second-order kinetic model with promising correlation of 0.9836 < R(2) < 0.9918.

  6. Population genetics and management units of invasive common carp Cyprinus carpio in the Murray-Darling Basin, Australia.

    PubMed

    Haynes, G D; Gilligan, D M; Grewe, P; Nicholas, F W

    2009-08-01

    Common carp Cyprinus carpio were introduced into Australia on several occasions and are now the dominant fish in the Murray-Darling Basin (MDB), the continent's largest river system. In this study, variability at 14 microsatellite loci was examined in C. carpio (n = 1037) from 34 sites throughout the major rivers in the MDB, from 3 cultured populations, from Prospect Reservoir in the Sydney Basin and from Lake Sorrell in Tasmania. Consistent with previous studies, assignment testing indicated that the Boolara, Yanco and koi strains of C. carpio are present in the MDB. Unique to this study, however, the Prospect strain was widely distributed throughout the MDB. Significant genetic structuring of populations (Fisher's exact test, AMOVA and distribution of the different strains) amongst the MDB sub-drainages was detected, and was strongly associated with contemporary barriers to dispersal and population history. The distributions of the strains were used to infer the history of introduction and spread of C. carpio in the MDB. Fifteen management units are proposed for control programmes that have high levels of genetic diversity, contain multiple interbreeding strains and show no evidence of founder effects or recent population bottlenecks.

  7. Isolation of Murray Valley encephalitis virus and other arboviruses in the Ord River Valley 1972-1976.

    PubMed

    Liehne, P F; Anderson, S; Stanley, N F; Liehne, C G; Wright, A E; Chan, K H; Leivers, S; Britten, D K; Hamilton, N P

    1981-06-01

    This paper summarizes the isolation of arboviruses from mosquitoes collected in the Ord Valley between 1972 and 1976. A total of one hundred and ninety five strains of at least fifteen antigenically distinct viruses have been isolated. Seven of these isolates appear to be "new' antigenic types, and several are undergoing further testing. These are three new rhabdoviruses (Kununurra [OR194], a virus provisionally named Kimberley [OR250] and OR189 [provisionally named Parry's Creek]), three ungrouped, non-haemagglutinating viruses (OR379, OR512, OR869) and a virus (OR540) which reacts to Poly Anopheles A world grouping fluid. The remaining viruses have been previously identified in Australia. These include Murray Valley encephalitis (MVE), Kunjin, Kokobera, Sindbis, Koongol, Wongal, Wongorr and a virus in the Corriparta serological group. The most important finding of these studies is that MVE displays as annually recurrent pattern of activity with a peak seasonal transmission rate at the end of the wet monsoon. This is the first definition of a probable endemic focus of MVE activity in Australia. The major vector for the majority of the viruses isolated was, by inference, Culex annulirostris. However, Aedeomyia catasticta was implicated as a major vector of the Corriparta group virus.

  8. Statistical description of wetland hydrological connectivity to the River Murray in South Australia under both natural and regulated conditions

    NASA Astrophysics Data System (ADS)

    Robinson, Sean J.; Souter, Nicholas J.; Bean, Nigel G.; Ross, Joshua V.; Thompson, Richard M.; Bjornsson, Kjartan T.

    2015-12-01

    The effect of river regulation on the connectivity of the South Australian River Murray to its floodplain wetlands was examined using unregulated 'natural' and 'regulated' river flow data simulated between the years 1895 to 2009. A sample of 185 wetlands was used to calculate a range of connectivity statistics under both simulation scenarios. These statistics summarised the timing and duration of both connection and disconnection, as well as inundated area. Wetlands ranged from being permanently inundated, connected multiple times per year due to both small fluctuations in river level and the annual flood pulse, to flooded with diminishing frequency depending on the size of the annual flood pulse and their position on the floodplain. Under the natural scenario a wide range of wetland connectivity profiles were recorded whereas under the regulated scenario wetlands tended to be either permanently inundated or infrequently flooded. Under natural conditions wetlands that required higher flow before connecting were less frequently connected and for shorter periods. Under regulated conditions a larger proportion of wetland area was permanently connected than under natural conditions, however the annual flood pulse connected a larger area of wetlands under natural conditions. The information derived from this analysis can be used to design wetland management plans for individual wetlands within a river-wide management regime restoring lost hydrological variability.

  9. The growing season water balance and controls on evapotranspiration in wetland reclamation test cells Fort McMurray, Alberta

    NASA Astrophysics Data System (ADS)

    Faubert, Jean-Pascal R.

    In the oil sands mining region near Fort McMurray, Alberta, efforts to establish specific wetland reclamation techniques are underway. During the 2010 growing season, the water balance of 12 plots (cells) of different soil and vegetation treatments were studied with emphasis on understanding the controls on evapotranspiration (ET) and the effects of construction techniques. Cell hydrologic behaviour was distinct from natural wetlands due to frequent artificial irrigation. ET ranged from ˜0 6 mm day-1 to ˜8.2 mm day-1 with a mean of ˜3.2 mm day-1 and variation among the cells was attributed to the construction techniques used, specifically placement period and soil depth. ET was weakly correlated to individual environmental variables; however, multivariate statistical models revealed complex interactions among environmental variables that acted to control ET. Cumulative water balances indicated certain construction techniques produced ET rates comparable to natural wetlands, which may be an important factor in improving the long-term sustainability of reclaimed wetlands.

  10. Steps toward “useful” hydroclimatic scenarios for water resource management in the Murray-Darling Basin

    NASA Astrophysics Data System (ADS)

    Kiem, Anthony S.; Verdon-Kidd, Danielle C.

    2011-12-01

    There is currently a distinct gap between what climate science can provide and information that is practically useful for (and needed by) natural resource managers. Improved understanding, and model representations, of interactions between the various climate drivers (both regional and global scale), combined with increased knowledge about the interactions between climate processes and hydrological processes at the regional scale, is necessary for improved attribution of climate change impacts, forecasting at a range of temporal scales and extreme event risk profiling (e.g., flood, drought, and bushfire). It is clear that the science has a long way to go in closing these research gaps; however, in the meantime water resource managers in the Murray-Darling Basin, and elsewhere, require hydroclimatic projections (i.e., seasonal to multidecadal future scenarios) that are regionally specific and, importantly, take into account the impacts, and associated uncertainties, of both natural climate variability and anthropogenic change. The strengths and weaknesses of various approaches for supplying this information are discussed in this paper.

  11. Interstellar SiC in the Murchison and Murray meteorites - Isotopic composition of Ne, Xe, Si, C, and N

    NASA Technical Reports Server (NTRS)

    Zinner, Ernst; Tang, Ming; Anders, Edward

    1989-01-01

    Detailed ion-probe data are reported on Murchison and Murray C2 chondrites, along with noble-gas data on Murchison, with the purpose of characterizing the number and isotopic composition of independent SiC components and to link them to their stellar sources. Results show that coarse-grained and fine-grained SiC (totaling about 6-9 ppm of the two meteorites) contains record concentrations of two exotic components: Ne-E(H) (nearly monoisotopic Ne-22) and Se-S (enriched in isotopes 128, 130, and 132), respectively. The Ne-21 content was found to exceed up to 40-fold the content expected from the recent cosmic-ray irradiation, implying a presolar cosmic-ray exposure age of about 39 Ma. This age is much shorter that the predicted 500 Ma lifetime of refractory interstellar grains and implies either a selective interstellar destruction process for SiC, enhanced supernova activity in the protosolar neighborhood, or late outgassing of greater than 90 percent of the SiC.

  12. T-helper cell and associated antibody response to synthetic peptides of the E glycoprotein of Murray Valley encephalitis virus.

    PubMed Central

    Mathews, J H; Allan, J E; Roehrig, J T; Brubaker, J R; Uren, M F; Hunt, A R

    1991-01-01

    A battery of 16 synthetic peptides, selected primarily by computer analysis for predicted B- and T-cell epitopes, was prepared from the deduced amino acid sequence of the envelope (E) glycoprotein of Murray Valley encephalitis (MVE) virus. We examined all of the peptides for T-helper (Th)-cell recognition and antibody induction in three strains of mice: C57BL/6, BALB/c, and C3H. Lymphoproliferative and interleukin-2 assays were performed on splenic T cells from mice inoculated with peptides in Freund's incomplete adjuvant or with MVE virus. Several peptides found to contain predicted T-cell epitopes elicited a Th-cell response in at least one strain of mice, usually with a concomitant antibody response. Peptides 145 (amino acids 145 to 169) and 17 (amino acids 356 to 376) were strongly recognized by T cells from all three inbred strains of mice. Peptide 06 (amino acids 230 to 251) primed C57BL/6 mice for Th- and B-cell reactivity with native MVE virus, and T cells from virus-immune mice were stimulated by this peptide. Peptide 06 was recognized by several Th-cell clones prepared from mice immunized with MVE, West Nile, or Kunjin virus. These results indicate that it may be feasible to design synthetic flavivirus peptides that define T-cell epitopes capable of generating a helper cell response for B-cell epitopes involved in protective immunity. PMID:1832722

  13. Collocated comparisons of continuous and filter-based PM2.5 measurements at Fort McMurray, Alberta, Canada

    PubMed Central

    Hsu, Yu-Mei; Wang, Xiaoliang; Chow, Judith C.; Watson, John G.; Percy, Kevin E.

    2016-01-01

    ABSTRACT Collocated comparisons for three PM2.5 monitors were conducted from June 2011 to May 2013 at an air monitoring station in the residential area of Fort McMurray, Alberta, Canada, a city located in the Athabasca Oil Sands Region. Extremely cold winters (down to approximately −40°C) coupled with low PM2.5 concentrations present a challenge for continuous measurements. Both the tapered element oscillating microbalance (TEOM), operated at 40°C (i.e., TEOM40), and Synchronized Hybrid Ambient Real-time Particulate (SHARP, a Federal Equivalent Method [FEM]), were compared with a Partisol PM2.5 U.S. Federal Reference Method (FRM) sampler. While hourly TEOM40 PM2.5 were consistently ~20–50% lower than that of SHARP, no statistically significant differences were found between the 24-hr averages for FRM and SHARP. Orthogonal regression (OR) equations derived from FRM and TEOM40 were used to adjust the TEOM40 (i.e., TEOMadj) and improve its agreement with FRM, particularly for the cold season. The 12-year-long hourly TEOMadj measurements from 1999 to 2011 based on the OR equations between SHARP and TEOM40 were derived from the 2-year (2011–2013) collocated measurements. The trend analysis combining both TEOMadj and SHARP measurements showed a statistically significant decrease in PM2.5 concentrations with a seasonal slope of −0.15 μg m−3 yr−1 from 1999 to 2014.Implications: Consistency in PM2.5 measurements are needed for trend analysis. Collocated comparison among the three PM2.5 monitors demonstrated the difference between FRM and TEOM, as well as between SHARP and TEOM. The orthogonal regressions equations can be applied to correct historical TEOM data to examine long-term trends within the network. PMID:26727574

  14. The changing epidemiology of Murray Valley encephalitis in Australia: the 2011 outbreak and a review of the literature.

    PubMed

    Selvey, Linda A; Dailey, Lynne; Lindsay, Michael; Armstrong, Paul; Tobin, Sean; Koehler, Ann P; Markey, Peter G; Smith, David W

    2014-01-01

    Murray Valley encephalitis virus (MVEV) is the most serious of the endemic arboviruses in Australia. It was responsible for six known large outbreaks of encephalitis in south-eastern Australia in the 1900s, with the last comprising 58 cases in 1974. Since then MVEV clinical cases have been largely confined to the western and central parts of northern Australia. In 2011, high-level MVEV activity occurred in south-eastern Australia for the first time since 1974, accompanied by unusually heavy seasonal MVEV activity in northern Australia. This resulted in 17 confirmed cases of MVEV disease across Australia. Record wet season rainfall was recorded in many areas of Australia in the summer and autumn of 2011. This was associated with significant flooding and increased numbers of the mosquito vector and subsequent MVEV activity. This paper documents the outbreak and adds to our knowledge about disease outcomes, epidemiology of disease and the link between the MVEV activity and environmental factors. Clinical and demographic information from the 17 reported cases was obtained. Cases or family members were interviewed about their activities and location during the incubation period. In contrast to outbreaks prior to 2000, the majority of cases were non-Aboriginal adults, and almost half (40%) of the cases acquired MVEV outside their area of residence. All but two cases occurred in areas of known MVEV activity. This outbreak continues to reflect a change in the demographic pattern of human cases of encephalitic MVEV over the last 20 years. In northern Australia, this is associated with the increasing numbers of non-Aboriginal workers and tourists living and travelling in endemic and epidemic areas, and also identifies an association with activities that lead to high mosquito exposure. This outbreak demonstrates that there is an ongoing risk of MVEV encephalitis to the heavily populated areas of south-eastern Australia.

  15. The Murrumbidgee Monitoring Network: Supporting CEOP, GEWEX and Hydrological Research in the Murray-Darling Basin, Australia

    NASA Astrophysics Data System (ADS)

    Ellett, K. M.; Western, A. W.; Walker, J. P.; Sirawardena, L.; Young, R. I.; Smith, A. B.; Flint, A. L.; Summerell, G.

    2006-12-01

    In 2001 a network of 18 soil moisture monitoring sites were installed across the 80,000 square km Murrumbidgee River catchment in Australia with the aim of evaluating the land surface component of the Australian Bureau of Meteorology's operational weather forecasting model. Since that time the Murrumbidgee Monitoring Network (MMN) has evolved to include 46 sites for continuous measurement of root-zone soil moisture, soil temperature and precipitation, as well as observations of deep soil moisture and ground water variability. Much of these data will soon be incorporated into the World Climate Research Programme's Coordinated Enhanced Observing Period (CEOP) database (www.ceop.net) marking a substantial new contribution from the Australian continent. This paper provides an overview of the MMN and presents current results from applications in a number of regional-scale research projects including the Murray-Darling Basin GEWEX study and the National Airborne Field Experiment 2006 (NAFE'06) aimed at improving the retrieval of soil moisture and vegetation parameters from airborne and satellite platforms. The MMN also plays an integral role in the HYDROGRACE project with the objectives of (1) providing the first in-situ based validation of terrestrial water storage observations from the GRACE (Gravity Recovery and Climate Experiment) mission and (2) improving regional-scale model simulations through data assimilation of GRACE observations. The MMN is part of the broader OzNet hydrological monitoring network throughout eastern Australia. Details on OzNet and the projects mentioned above are provided at www.oznet.unimelb.edu.au.

  16. Spatio-temporal modelling of heat stress and climate change implications for the Murray dairy region, Australia

    NASA Astrophysics Data System (ADS)

    Nidumolu, Uday; Crimp, Steven; Gobbett, David; Laing, Alison; Howden, Mark; Little, Stephen

    2014-08-01

    The Murray dairy region produces approximately 1.85 billion litres of milk each year, representing about 20 % of Australia's total annual milk production. An ongoing production challenge in this region is the management of the impacts of heat stress during spring and summer. An increase in the frequency and severity of extreme temperature events due to climate change may result in additional heat stress and production losses. This paper assesses the changing nature of heat stress now, and into the future, using historical data and climate change projections for the region using the temperature humidity index (THI). Projected temperature and relative humidity changes from two global climate models (GCMs), CSIRO MK3.5 and CCR-MIROC-H, have been used to calculate THI values for 2025 and 2050, and summarized as mean occurrence of, and mean length of consecutive high heat stress periods. The future climate scenarios explored show that by 2025 an additional 12-15 days (compared to 1971 to 2000 baseline data) of moderate to severe heat stress are likely across much of the study region. By 2050, larger increases in severity and occurrence of heat stress are likely (i.e. an additional 31-42 moderate to severe heat stress days compared with baseline data). This increasing trend will have a negative impact on milk production among dairy cattle in the region. The results from this study provide useful insights on the trends in THI in the region. Dairy farmers and the dairy industry could use these results to devise and prioritise adaptation options to deal with projected increases in heat stress frequency and severity.

  17. A comparative study of historical droughts over Texas, USA and Murray-Darling Basin, Australia: Factors influencing initialization and cessation

    NASA Astrophysics Data System (ADS)

    Verdon-Kidd, Danielle C.; Scanlon, Bridget R.; Ren, Tong; Fernando, D. Nelun

    2017-02-01

    Water availability and food security are tightly coupled on a global scale. The occurrence of drought puts this balance at risk due to reductions in dryland farming production and water allocations to irrigated agriculture. Improved understanding of drought initiation and cessation would therefore be beneficial for drought planning and management. The study objective was to determine factors affecting drought initiation and cessation over the past century in two climatologically similar regions that represent net agricultural exporters; south central U.S. (Texas) and southeast Australia (Murray Darling Basin, MDB). Drought indices included the Standardized Precipitation Index (SPI, 1900-2014) for meteorological drought, the Normalized Difference Vegetation Index (NDVI, 1981-2014) for agricultural drought, and the Streamflow Drought Index (SDI, 1930-2014) for hydrological drought. Results show that meteorological drought tends to develop gradually over a period of up to six months, with agricultural drought developing shortly thereafter (within one month) in both regions. Evidence of hydrological drought was observed within one month (Texas) and within four months (MDB) on average after meteorological drought was established. Further, droughts appear to cease more quickly than they initiate over Texas, whereas rates of drought initiation and cessation are similar over the MDB. Drought breaking rainfall in Texas is generally a result of a southward shift in the Polar Jet Stream or a low-pressure trough over central North America, whereas drought cessation in the MDB is typically associated with a monsoon trough or low-pressure system in the Tasman Sea/Great Australian Bight. Improved knowledge of the climate mechanisms controlling the onset and termination of drought periods should enhance drought forecasts and improve drought management practices, particularly in regions where water security is a primary objective.

  18. Spatio-temporal modelling of heat stress and climate change implications for the Murray dairy region, Australia.

    PubMed

    Nidumolu, Uday; Crimp, Steven; Gobbett, David; Laing, Alison; Howden, Mark; Little, Stephen

    2014-08-01

    The Murray dairy region produces approximately 1.85 billion litres of milk each year, representing about 20 % of Australia's total annual milk production. An ongoing production challenge in this region is the management of the impacts of heat stress during spring and summer. An increase in the frequency and severity of extreme temperature events due to climate change may result in additional heat stress and production losses. This paper assesses the changing nature of heat stress now, and into the future, using historical data and climate change projections for the region using the temperature humidity index (THI). Projected temperature and relative humidity changes from two global climate models (GCMs), CSIRO MK3.5 and CCR-MIROC-H, have been used to calculate THI values for 2025 and 2050, and summarized as mean occurrence of, and mean length of consecutive high heat stress periods. The future climate scenarios explored show that by 2025 an additional 12-15 days (compared to 1971 to 2000 baseline data) of moderate to severe heat stress are likely across much of the study region. By 2050, larger increases in severity and occurrence of heat stress are likely (i.e. an additional 31-42 moderate to severe heat stress days compared with baseline data). This increasing trend will have a negative impact on milk production among dairy cattle in the region. The results from this study provide useful insights on the trends in THI in the region. Dairy farmers and the dairy industry could use these results to devise and prioritise adaptation options to deal with projected increases in heat stress frequency and severity.

  19. An unrecognised Holocene palaeo-lake at the terminus of the Murray-Darling Basin: a palaeo-discharge record and implications for current climate reconstructions

    NASA Astrophysics Data System (ADS)

    De Carli, E.; Hubble, T.; Penny, D.; Petley, D. N.; Clarke, S. L.; Hamilton, R. J.; Gadd, P.; Brand, H.

    2015-12-01

    The 1.073 million km2 Murray-Darling River Basin (MDB) drains 14% of Australia's landmass, incorporates Australia's most economically important agricultural region, and presents one of Australia's most important and contentious water security challenges. The twin Murray and Darling catchments extend from the sub-tropics to the mid latitudes, with catchment precipitation driven by synoptic-scale oceanic-atmospheric processes that include the Australian Monsoon, SAM, IPO, PDO, IOD and ENSO. In this study we report the discovery of a hitherto unrecognised terminal palaeo-lake system 'Lake Mannum' that existed during the middle to late Holocene, as evidenced by an extensive sequence of laminated muds. The deposit contains gray laminae enriched in smectite and Nd/Ti, diagnostic of palaeo-discharges originating from the Darling catchment. These gray laminae are set within olive-black background muds enriched in illite, K and Rb, diagnostic of palaeo-discharges originating from the Murray Catchment. The deposit reflects the hydrological regime of the MDB, representing the first in-situ palaeo-discharge record for the MDB and a proxy record for south-eastern Australia's precipitation and hydroclimate. Given the strong influence of major oceanic-atmospheric synoptic circulation over the river system, variability in MDB discharge and delivery of suspended sediment flux to the continental shelf have been used as proxy indicators for south-eastern Australia's palaeo-climate during the Holocene. The existence of palaeo-lake Mannum at the terminus of the MDB suggests that discharge of terrigenous sediment to the Southern Ocean was strongly suppressed during this time, meaning that Holocene climate reconstructions which rely on the marine sediment record require re-evaluation.

  20. A century-scale, human-induced ecohydrological evolution of wetlands of two large river basins in Australia (Murray) and China (Yangtze)

    NASA Astrophysics Data System (ADS)

    Kattel, Giri R.; Dong, Xuhui; Yang, Xiangdong

    2016-06-01

    Recently, the provision of food and water resources of two of the world's largest river basins, the Murray and the Yangtze, has been significantly altered through widespread landscape modification. Long-term sedimentary archives, dating back for some centuries from wetlands of these river basins, reveal that rapid, basin-wide development has reduced the resilience of biological communities, resulting in considerable decline in ecosystem services, including water quality. Large-scale human disturbance to river systems, due to river regulation during the mid-20th century, has transformed the hydrology of rivers and wetlands, causing widespread modification of aquatic biological communities. Changes to cladoceran zooplankton (water fleas) were used to assess the historical hydrology and ecology of three Murray and Yangtze river wetlands over the past century. Subfossil assemblages of cladocerans retrieved from sediment cores (94, 45, and 65 cm) of three wetlands: Kings Billabong (Murray), Zhangdu, and Liangzi lakes (Yangtze), showed strong responses to hydrological changes in the river after the mid-20th century. In particular, river regulation caused by construction of dams and weirs together with river channel modifications, has led to significant hydrological alterations. These hydrological disturbances were either (1) a prolonged inundation of wetlands or (2) reduced river flow, both of which caused variability in wetland depth. Inevitably, these phenomena have subsequently transformed the natural wetland habitats, leading to a switch in cladoceran assemblages to species preferring poor water quality, and in some cases to eutrophication. The quantitative and qualitative decline of wetland water conditions is indicative of reduced ecosystem services, and requires effective restoration measures for both river basins which have been impacted by recent socioeconomic development and climate change.

  1. Evolved Gas Analyses of the Murray Formation in Gale Crater, Mars: Results of the Curiosity Rover's Sample Analysis at Mars (SAM) Instrument

    NASA Technical Reports Server (NTRS)

    Sutter, B.; McAdam, A. C.; Rampe, E. B.; Thompson, L. M.; Ming, D. W.; Mahaffy, P. R.; Navarro-Gonzalez, R.; Stern, J. C.; Eigenbrode, J. L.; Archer, P. D.

    2017-01-01

    The Sample Analysis at Mars (SAM) instrument aboard the Mars Science Laboratory rover has analyzed 13 samples from Gale Crater. All SAM-evolved gas analyses have yielded a multitude of volatiles (e.g., H2O, SO2, H2S, CO2, CO, NO, O2, HCl) [1- 6]. The objectives of this work are to 1) Characterize recent evolved SO2, CO2, O2, and NO gas traces of the Murray formation mudstone, 2) Constrain sediment mineralogy/composition based on SAM evolved gas analysis (SAM-EGA), and 3) Discuss the implications of these results relative to understanding the geological history of Gale Crater.

  2. Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-119 Snohomish-Murray No. 1 Transmission Line

    SciTech Connect

    Martin, Mark A.

    2003-01-29

    Vegetation Management along the Snohomish-Murray No. 1 Transmission Line from structure 2/6 through structure 18/6. Right of way width is 95 feet. BPA proposes to remove unwanted vegetation along the right-of-way, access roads and around tower structures along the subject transmission line corridor. Total right-of-way acreage is approximately 182.8 acres. Approximately 17 miles of access roads will be cleared. Approximately 136 tower sites will be treated. See Section 1 of the attached checklist for a complete description of the proposal.

  3. Patterns and processes of fluvial discontinuity and sediment residence times on the lower Macquarie River, Murray-Darling Basin, Australia

    NASA Astrophysics Data System (ADS)

    Larkin, Zacchary; Ralph, Timothy; Hesse, Paul

    2014-05-01

    The supply, transport and deposition of fine-grained sediment are important factors determining the morphology of lowland rivers that experience channel breakdown and have wetlands on their lower reaches. Sediment supply and residence time determine whether reaches accumulate sediment (wetland areas) or erode sediment (channelised areas). This research investigated how processes of sedimentation and erosion drive channel breakdown and reformation in the Macquarie Marshes, a large anastomosing wetland system in the Murray-Darling Basin, Australia. Channel breakdown is attributed to a dominance of in-stream sedimentation that leads to a point where single-thread river channels cannot be maintained and so avulsion and floodout processes create smaller distributary channels and wetlands. Avulsions may reconnect channels, changing the sediment supply regime in those particular channels. Channel reformation occurs on the trunk stream where the floodplain gradient steepens enough to allow convergence of small tributaries, locally increasing stream power (and erosive energy in channels). As each river reach reforms following channel breakdown, the channel is smaller, shallower and straighter than the previous reach. One reach in this system recently (in the 1970s) became connected with a parallel channel through avulsion and has morphological characteristics that indicate a significant change in flow and sediment supply. In a pilot study using uranium-series disequilibrium methods and OSL dating, a sediment residence time of 58 +/- 2 ka was determined for sediment in the base of the active channel and a sediment residence time of 153 +/- 5 ka was determined for sediment buried in an adjacent meander that was cut off from the main channel 1,000 years ago. The apparent dramatic decrease in sediment residence time to this active channel poses an interesting question about the role of relatively new channels in transporting and depositing sediment more rapidly than the

  4. Formation and transformations of Fe-rich serpentines by asteroidal aqueous alteration processes: A nanoscale study of the Murray chondrite

    NASA Astrophysics Data System (ADS)

    Elmaleh, Agnès; Bourdelle, Franck; Caste, Florent; Benzerara, Karim; Leroux, Hugues; Devouard, Bertrand

    2015-06-01

    Fe-rich serpentines are an abundant product of the early aqueous alteration events that affected the parent bodies of CM carbonaceous chondrites. Alteration assemblages in these meteorites show a large chemical variability and although water-rock interactions occurred under anoxic conditions, serpentines contain high amounts of ferric iron. To date very few studies have documented Fe valence variations in alteration assemblages of carbonaceous chondrites, limiting the understanding of the oxidation mechanisms. Here, we report results from a nanoscale study of a calcium-aluminum-rich inclusion (CAI) from the Murray chondrite, in which alteration resulted in Fe import and Ca export by the fluid phase and in massive Fe-rich serpentines formation. We combined scanning and transmission electron microscopies and scanning transmission X-ray microscopy for characterizing the crystal chemistry of Fe-serpentines. We used reference minerals with known crystallographic orientations to quantify the Fe valence state in Fe-rich serpentines using X-ray absorption spectroscopy at the Fe L2,3-edges, yielding a robust methodology that would prove valuable for studying oxidation processes in other terrestrial or extra-terrestrial cases of serpentinization. We suggest that aqueous Fe2+ was transported to the initially Fe-depleted CAI, where local changes in pH conditions, and possibly mineral catalysis by spinel promoted the partial oxidation of Fe2+ into Fe3+ by water and the formation of Fe-rich serpentines close to the cronstedtite endmember. Such mechanisms produce H2, which opens interesting perspectives as hydrogen may have reacted with carbon species, or escaped and yield increasingly oxidizing conditions in the parent asteroid. From the results of this nanoscale study, we also propose transformations of the initial cronstedtite, destabilized by later input of Al- and Mg-rich solutions, leading to Fe2+ leaching from serpentines, as well as to random serpentine

  5. Magnetotelluric imaging of anisotropic crust near Fort McMurray, Alberta: implications for engineered geothermal system development

    NASA Astrophysics Data System (ADS)

    Liddell, Mitch; Unsworth, Martyn; Pek, Josef

    2016-06-01

    Viability for the development of an engineered geothermal system (EGS) in the oilsands region near Fort McMurray, Alberta, is investigated by studying the structure of the Precambrian basement rocks with magnetotellurics (MT). MT data were collected at 94 broad-band stations on two east-west profiles. Apparent resistivity and phase data showed little variation along each profile. The short period MT data detected a 1-D resistivity structure that could be identified as the shallow sedimentary basin underlain by crystalline basement rocks to a depth of 4-5 km. At lower frequencies a strong directional dependence, large phase splits, and regions of out-of-quadrant (OOQ) phase were detected. 2-D isotropic inversions of these data failed to produce a realistic resistivity model. A detailed dimensionality analysis found links between large phase tensor skews (˜15°), azimuths, OOQ phases and tensor decomposition strike angles at periods greater than 1 s. Low magnitude induction vectors, as well as uniformity of phase splits and phase tensor character between the northern and southern profiles imply that a 3-D analysis is not necessary or appropriate. Therefore, 2-D anisotropic forward modelling was used to generate a resistivity model to interpret the MT data. The preferred model was based on geological observations of outcropping anisotropic mylonitic basement rocks of the Charles Lake shear zone, 150 km to the north, linked to the study area by aeromagnetic and core sample data. This model fits all four impedance tensor elements with an rms misfit of 2.82 on the southern profile, and 3.3 on the northern. The conductive phase causing the anisotropy is interpreted to be interconnected graphite films within the metamorphic basement rocks. Characterizing the anisotropy is important for understanding how artificial fractures, necessary for EGS development, would form. Features of MT data commonly interpreted to be 3-D (e.g. out of OOQ phase and large phase tensor skew) are

  6. Emergence of epizootic ulcerative syndrome in native fish of the Murray-Darling River System, Australia: hosts, distribution and possible vectors.

    PubMed

    Boys, Craig A; Rowland, Stuart J; Gabor, Melinda; Gabor, Les; Marsh, Ian B; Hum, Steven; Callinan, Richard B

    2012-01-01

    Epizootic ulcerative syndrome (EUS) is a fish disease of international significance and reportable to the Office International des Epizootics. In June 2010, bony herring Nematalosa erebi, golden perch Macquaria ambigua, Murray cod Maccullochella peelii and spangled perch Leiopotherapon unicolor with severe ulcers were sampled from the Murray-Darling River System (MDRS) between Bourke and Brewarrina, New South Wales Australia. Histopathology and polymerase chain reaction identified the fungus-like oomycete Aphanomyces invadans, the causative agent of EUS. Apart from one previous record in N. erebi, EUS has been recorded in the wild only from coastal drainages in Australia. This study is the first published account of A. invadans in the wild fish populations of the MDRS, and is the first confirmed record of EUS in M. ambigua, M. peelii and L. unicolor. Ulcerated carp Cyprinus carpio collected at the time of the same epizootic were not found to be infected by EUS, supporting previous accounts of resistance against the disease by this species. The lack of previous clinical evidence, the large number of new hosts (n = 3), the geographic extent (200 km) of this epizootic, the severity of ulceration and apparent high pathogenicity suggest a relatively recent invasion by A. invadans. The epizootic and associated environmental factors are documented and discussed within the context of possible vectors for its entry into the MDRS and recommendations regarding continued surveillance, research and biosecurity are made.

  7. Emergence of Epizootic Ulcerative Syndrome in Native Fish of the Murray-Darling River System, Australia: Hosts, Distribution and Possible Vectors

    PubMed Central

    Boys, Craig A.; Rowland, Stuart J.; Gabor, Melinda; Gabor, Les; Marsh, Ian B.; Hum, Steven; Callinan, Richard B.

    2012-01-01

    Epizootic ulcerative syndrome (EUS) is a fish disease of international significance and reportable to the Office International des Epizootics. In June 2010, bony herring Nematalosa erebi, golden perch Macquaria ambigua, Murray cod Maccullochella peelii and spangled perch Leiopotherapon unicolor with severe ulcers were sampled from the Murray-Darling River System (MDRS) between Bourke and Brewarrina, New South Wales Australia. Histopathology and polymerase chain reaction identified the fungus-like oomycete Aphanomyces invadans, the causative agent of EUS. Apart from one previous record in N. erebi, EUS has been recorded in the wild only from coastal drainages in Australia. This study is the first published account of A. invadans in the wild fish populations of the MDRS, and is the first confirmed record of EUS in M. ambigua, M. peelii and L. unicolor. Ulcerated carp Cyprinus carpio collected at the time of the same epizootic were not found to be infected by EUS, supporting previous accounts of resistance against the disease by this species. The lack of previous clinical evidence, the large number of new hosts (n = 3), the geographic extent (200 km) of this epizootic, the severity of ulceration and apparent high pathogenicity suggest a relatively recent invasion by A. invadans. The epizootic and associated environmental factors are documented and discussed within the context of possible vectors for its entry into the MDRS and recommendations regarding continued surveillance, research and biosecurity are made. PMID:22558170

  8. Identification of Putative Nuclear Receptors and Steroidogenic Enzymes in Murray-Darling Rainbowfish (Melanotaenia fluviatilis) Using RNA-Seq and De Novo Transcriptome Assembly.

    PubMed

    Bain, Peter A; Papanicolaou, Alexie; Kumar, Anupama

    2015-01-01

    Murray-Darling rainbowfish (Melanotaenia fluviatilis [Castelnau, 1878]; Atheriniformes: Melanotaeniidae) is a small-bodied teleost currently under development in Australasia as a test species for aquatic toxicological studies. To date, efforts towards the development of molecular biomarkers of contaminant exposure have been hindered by the lack of available sequence data. To address this, we sequenced messenger RNA from brain, liver and gonads of mature male and female fish and generated a high-quality draft transcriptome using a de novo assembly approach. 149,742 clusters of putative transcripts were obtained, encompassing 43,841 non-redundant protein-coding regions. Deduced amino acid sequences were annotated by functional inference based on similarity with sequences from manually curated protein sequence databases. The draft assembly contained protein-coding regions homologous to 95.7% of the complete cohort of predicted proteins from the taxonomically related species, Oryzias latipes (Japanese medaka). The mean length of rainbowfish protein-coding sequences relative to their medaka homologues was 92.1%, indicating that despite the limited number of tissues sampled a large proportion of the total expected number of protein-coding genes was captured in the study. Because of our interest in the effects of environmental contaminants on endocrine pathways, we manually curated subsets of coding regions for putative nuclear receptors and steroidogenic enzymes in the rainbowfish transcriptome, revealing 61 candidate nuclear receptors encompassing all known subfamilies, and 41 putative steroidogenic enzymes representing all major steroidogenic enzymes occurring in teleosts. The transcriptome presented here will be a valuable resource for researchers interested in biomarker development, protein structure and function, and contaminant-response genomics in Murray-Darling rainbowfish.

  9. Identification of Putative Nuclear Receptors and Steroidogenic Enzymes in Murray-Darling Rainbowfish (Melanotaenia fluviatilis) Using RNA-Seq and De Novo Transcriptome Assembly

    PubMed Central

    Bain, Peter A.; Papanicolaou, Alexie; Kumar, Anupama

    2015-01-01

    Murray-Darling rainbowfish (Melanotaenia fluviatilis [Castelnau, 1878]; Atheriniformes: Melanotaeniidae) is a small-bodied teleost currently under development in Australasia as a test species for aquatic toxicological studies. To date, efforts towards the development of molecular biomarkers of contaminant exposure have been hindered by the lack of available sequence data. To address this, we sequenced messenger RNA from brain, liver and gonads of mature male and female fish and generated a high-quality draft transcriptome using a de novo assembly approach. 149,742 clusters of putative transcripts were obtained, encompassing 43,841 non-redundant protein-coding regions. Deduced amino acid sequences were annotated by functional inference based on similarity with sequences from manually curated protein sequence databases. The draft assembly contained protein-coding regions homologous to 95.7% of the complete cohort of predicted proteins from the taxonomically related species, Oryzias latipes (Japanese medaka). The mean length of rainbowfish protein-coding sequences relative to their medaka homologues was 92.1%, indicating that despite the limited number of tissues sampled a large proportion of the total expected number of protein-coding genes was captured in the study. Because of our interest in the effects of environmental contaminants on endocrine pathways, we manually curated subsets of coding regions for putative nuclear receptors and steroidogenic enzymes in the rainbowfish transcriptome, revealing 61 candidate nuclear receptors encompassing all known subfamilies, and 41 putative steroidogenic enzymes representing all major steroidogenic enzymes occurring in teleosts. The transcriptome presented here will be a valuable resource for researchers interested in biomarker development, protein structure and function, and contaminant-response genomics in Murray-Darling rainbowfish. PMID:26599404

  10. Social encapsulation of beetle parasites by Cape honeybee colonies (Apis mellifera capensis Esch.)

    NASA Astrophysics Data System (ADS)

    Neumann, P.; Pirk, C. W. W.; Hepburn, H. R.; Solbrig, A. J.; Ratnieks, F. L. W.; Elzen, P. J.; Baxter, J. R.

    2001-05-01

    Worker honeybees (Apis mellifera capensis) encapsulate the small hive beetle (Aethina tumida), a nest parasite, in propolis (tree resin collected by the bees). The encapsulation process lasts 1-4 days and the bees have a sophisticated guarding strategy for limiting the escape of beetles during encapsulation. Some encapsulated beetles died (4.9%) and a few escaped (1.6%). Encapsulation has probably evolved because the small hive beetle cannot easily be killed by the bees due to its hard exoskeleton and defensive behaviour.

  11. Distribution of Total Dissolved Solids in McMurray Formation Water in the Athabasca Oil Sands Region, Alberta, Canada: Implications for Oil Sands Mining and In Situ Resource Development

    NASA Astrophysics Data System (ADS)

    Cowie, B.; Mayer, B.

    2013-12-01

    Saline water management is a significant environmental challenge for mining and in-situ resource development in the Athabasca oil sands region (AOSR), Alberta, Canada. In the AOSR, the Cretaceous aged McMurray formation that bears the majority of the oil sands resources is underlain by saline Devonian formations containing saline water. Vertical connectivity between Devonian and Cretaceous aquifer systems has been uncovered by mining operations in the AOSR over the past several years, inducing occasional and local saline water flow into mining areas. The observed upward flow of groundwater from Devonian to Cretaceous systems necessitates detailed characterization of the spatial extent of high salinity formation waters to improve water management decisions in the AOSR. This study used published data from recent government reports and Environmental Impact Assessments to map total dissolved solids (TDS) of 355 McMurray formation water samples across the Athabasca oil sands region (54 to 58° N and 110 to 114° W). McMurray formation waters varied from non-saline (TDS < 4 000 mg/L) to brine (TDS > 100 000 mg/L) with a locally high salinity formation waters trending parallel to the dissolution edge of the Devonian-aged Prairie evaporite formation across the AOSR. The simplest hydrogeological explanation for the observed formation water salinity data is that Devonian aquifers are locally connected to the McMurray formation via conduits in the sub-Cretaceous karst system in the region overlying the partial dissolution edge of the Prairie evaporite formation. The driving force for upward formation water flow was provided by the Pleistocene glaciation events that reversed the regional flow system in the Devonian strata over the past 2 Ma. This study demonstrates that a detailed approach to hydrogeological assessment is required to elucidate total dissolved solids concentrations in McMurray formation waters at an individual lease-area scale, and to manage potential impacts

  12. The role of stakeholders in Murray-Darling Basin water management: How do irrigators make water use decisions and how can this influence water policy?

    NASA Astrophysics Data System (ADS)

    Douglas, E. M.; Wheeler, S. A.; Smith, D. J.; Gray, S.; Overton, I. C.; Crossman, N. D.; Doody, T.

    2014-12-01

    Water stress and overallocation are at the forefront of water management and policy challenges in Australia, especially in the Murray Darling Basin (MDB). Farmland within the MDB generates 40 percent of Australia's total agricultural production and utilizes 60 percent of all irrigation water withdrawn nationally. The Murray Darling Basin Plan, drafted in 2008 and enacted in November 2012, has at its core the establishment of environmentally sustainable diversion limits based on a threshold of water extraction which, if exceeded, would cause harm to key environmental assets in the MDB. The overall goal of the Plan is to balance economic, social and environmental outcomes within the Basin. Because irrigated agriculture is the major water user in the MDB, it is important to understand the factors that influence irrigation water use. We applied a mental modeling approach to assessing farmer water use decisions. The approach allowed us to solicit and document farmer insights into the multifaceted nature of irrigation water use decisions in the MDB. Following are a few insights gained from the workshops: 1) For both environmental and economic reasons, irrigators in the MDB have become experts in water use and water efficiency. Water managers and government officials could benefit by partnering with farmers and incorporating this expertise into water management decisions. 2) Irrigators in the MDB may have been misperceived when it comes to accepting policy change. Many, if not most, of the farmers we talked to understood the need for, or at least the inevitability of, governmental policies and regulations. But a lack of accountability and predictability has added to the uncertainty in farming decisions. 3) Irrigators in the MDB subscribe to the concept of environmental sustainability, although they might not always agree with how the concept is implemented. Farmers should be recognized for their significant investments in the long-term sustainability of their farms and

  13. Multispectral Evidence of Alteration from Murray Ridge to Marathon Valley Observed by the Opportunity Pancam on the Rim of Endeavour Crater, Mars

    NASA Technical Reports Server (NTRS)

    Farrand, W. H.; Mittlefehldt, D. W.; Bell, J. F.; Johnson, J. R.

    2015-01-01

    The Mars Exploration Rover Opportunity has been traversing the rim of the Noachian-aged, 22 km diameter Endeavour crater. Circa sol 3390 of its mission, Opportunity reached the northern tip of the rim segment known as Solander Point and has since been traversing the rim to the south to its current location at the break in the rim known as Marathon Valley. The rocks making up the rim are dominated by impact breccias consisting of clasts and a finer-grained matrix. Several segments of the rim are transected by fractures as observed from orbital HiRISE imagery. Pancam multispectral observations of outcrop in these fracture regions, including part of the rim crest dubbed Murray Ridge, the Hueytown fracture, and Marathon Valley have been made. Over the range of 430 to 1010 nm there are changes in the multispectral reflectance signature of the breccia matrix with an increase in 535 nm and 904 nm band depth. This is attributed to oxidation and an increase in ferric oxides in these areas. In situ observations by the rover's APXS also indicate chemical differences associated with the matrix along these fractures, including increasing Fe/Mn southward from Solander Point to a region having an Al-OH signature in CRISM spectra, and generally higher SO3 in the Hueytown fracture region and the area around Spirit of St. Louis. Overturned rocks observed on Murray Ridge were determined by the APXS to have elevated Mn and Pancam spectra of the high Mn spots have a characteristic red, featureless slope. This spectrum was also observed in association with some coatings on blocks of the sulfate-rich Grasberg formation. Spectra resembling red hematite are observed in some zones in association with the craterform feature Spirit of St. Louis outside the mouth (to the west) of Marathon Valley. Marathon Valley itself has been observed from orbital hyperspectral observations by the CRISM sensor to host occurrences of Fe/Mg smectite minerals- indicating extensive aqueous alteration in this

  14. Drought, floods and water quality: Drivers of a severe hypoxic blackwater event in a major river system (the southern Murray-Darling Basin, Australia)

    NASA Astrophysics Data System (ADS)

    Whitworth, Kerry L.; Baldwin, Darren S.; Kerr, Janice L.

    2012-07-01

    SummaryHypoxic blackwater events are characterised by high levels of dissolved organic carbon in the water column, the metabolism of which depletes dissolved oxygen, which can cause fish and crustacean mortality. Understanding the drivers of and controls on hypoxic blackwater events is important in order to reduce the potential for detrimental water quality impacts from both managed and natural flows. After a decade-long drought in south-eastern Australia, a series of spring and summer flood events in 2010-2011 resulted in a large-scale hypoxic blackwater event in the southern Murray-Darling Basin that affected over 2000 km of river channels and persisted for 6 months. We examined the biogeochemistry and hydrology underpinning this extreme event and found that multiple drivers contributed to the development and persistence of hypoxic blackwater. Inundation of both forested and agricultural floodplains that had not been flooded for over a decade mobilised large stores of reactive carbon. Altered flow seasonality, due to a combination of climatic effects and river regulation, not only increased the risk of hypoxic blackwater generation but also shifted the proportion of bioavailable carbon that was returned to the river channels. Hypolimnetic weir discharge also contributed to hypoxia at some sites. These findings highlight the need for a whole-of-system perspective for the management of regulated river systems - especially in the face of a changing climate.

  15. Desalination of oil sands process-affected water and basal depressurization water in Fort McMurray, Alberta, Canada: application of electrodialysis.

    PubMed

    Kim, Eun-Sik; Dong, Shimiao; Liu, Yang; Gamal El-Din, Mohamed

    2013-01-01

    The high content of inorganic species in water used to extract bitumen from the Alberta oil sands and in the groundwater below the oil sands is an increasing environmental concern. These water matrices require treatment before they can be reused or safely discharged. Desalination of the oil sands process-affected water (OSPW) and groundwater, or basal depressurization water (BDW), can be accomplished with deionization techniques such as electrodialysis (ED). In order to achieve the effective ED treatment, OSPW and BDW were pretreated with coagulation-flocculation-sedimentation to remove solid species and turbidity. We demonstrated that a conductivity range for industrial reuse of OSPW and BDW can be achieved with the ED treatment and showed the possibility of applying ED in the oil sands industry. A continuous ED system that reuses the diluate stream as a source for the concentrate stream was designed. The cost of a hypothetical ED water treatment plant in Fort McMurray, Alberta, was estimated to be C$10.71 per cubic meter of treated water.

  16. Efficacy of bath and orally administered praziquantel and fenbendazole against Lepidotrema bidyana Murray, a monogenean parasite of silver perch, Bidyanus bidyanus (Mitchell).

    PubMed

    Forwood, J M; Harris, J O; Deveney, M R

    2013-11-01

    We investigated the efficacy of praziquantel (PZQ) and fenbendazole (FBZ), each administered by bath and orally, against the monogenean Lepidotrema bidyana Murray, a gill parasite of the freshwater fish silver perch, Bidyanus bidyanus (Mitchell). PZQ and FBZ were each administered by bath at 10 mg L⁻¹ for 48 h and on surface-coated feed pellets at 75 mg kg⁻¹ per body weight (BW) per day for 6 days. Bath treatments of PZQ and FBZ had an efficacy of 99% and 91%, respectively, against adult L. bidyana. Oral treatments of PZQ and FBZ had an efficacy of 79% and 95%, respectively, against adult L. bidyana. Fish rejected feed pellets surface-coated with PZQ, suggesting that palatability of surface-coated PZQ-medicated feed is poor, which undermined efficacy. In all trials, some juvenile parasites were present on fish after treatment during efficacy assessment, indicating that efficacy may be lower against juvenile parasites or that recruitment occurred post-treatment, demonstrating that repeat treatments are necessary to effectively control L. bidyana in aquaculture.

  17. Molecular characterization and phylogenetic analysis of Murray Valley encephalitis virus and West Nile virus (Kunjin subtype) from an arbovirus disease outbreak in horses in Victoria, Australia, in 2011.

    PubMed

    Mann, Rachel A; Fegan, Mark; O'Riley, Kim; Motha, Julian; Warner, Simone

    2013-01-01

    Virus was detected in the central nervous system (CNS) tissue of 11 horses from Victoria that died displaying neurological symptoms during an outbreak of disease in Australia in 2011. Five horses were identified as being infected with Murray Valley encephalitis virus (MVEV) and 6 as being infected with West Nile virus subtype Kunjin (WNV(KUN)). Analysis of partial sequence information from the NS5 and E genes indicated that the MVEVs within the samples were highly homogenous and all belonged to lineage I, which is enzootic to the tropical regions of northern Australia. Likewise, analysis of partial NS5 and E gene and full genome sequences indicated that the WNV(KUN) within the samples were also highly homogenous and clustered with WNV lineage 1, clade b, which is consistent with other WNV(KUN) isolates. Full genomes of 1 MVEV isolate and 2 WNV(KUN) isolates were sequenced and characterized. The genome sequences of Victorian WNV(KUN) are almost identical (3 amino acid differences) to that of the recently sequenced WNV isolate WNV(NSW2011). Metagenome sequencing directly from CNS tissue identified the presence of WNV(KUN) and MVEV within infected CNS tissue.

  18. An application of spatially constrained inversion using FD Helicopter EM data to characterise spatial variations in groundwater salinity across the floodplains of the Murray River in South-eastern Australia

    NASA Astrophysics Data System (ADS)

    Munday, T. J.; Viezzoli, A.; Fitzpatrick, A.

    2008-12-01

    The floodplains of the Murray River, situated in the southeast of Australia, have become extensively salinised, related in part to the discharge of naturally saline groundwater linked to increased recharge from land clearing and irrigation adjacent to the river. This problem has been compounded by extended drought conditions that prevail across the Murray Basin, resulting in increase in the accumulation and concentration of salt within the floodplain soils and an increase in salt loads to the river. Consequently in many floodplain areas along the Murray, the native riparian vegetation communities are in severe decline and Eucalyptus largiflorens (Black Box) and E. camaldulensis (Red Gum) communities are being significantly affected. A range management strategies are being employed to manage these issues, the manipulation of river flows to enhance biodiversity values (ie restore vegetation health) and the development of a hydro-dynamic models to better understand surface flows and the role of soils and elevation in floodplain vegetation health. Integral to these strategies is the acquisition of detailed spatial data on the distribution of salinity in floodplain soils and groundwater, thereby indicating patterns of groundwater evapotranspiration and baseflow across these areas. Hydrogeophysical data from electrical (inductive) methods have considerable potential to provide such data. We present an application of the Spatially Constrained Inversion (SCI) of RESOLVE FDHEM (airborne EM) data for defining spatial patterns of salinisation in the sunraysia irrigation area located in the lower Murray Basin of South Australia. Spatially Constrained Inversion uses Delaunay triangulation to set three dimensional constraints between neighbouring soundings, taking advantage of the spatial coherency that may be present in the data set. Conductivity information for individual soundings is linked through the spatial constraints, from well determined parameters to locally poorly

  19. The Molecular Epidemiology and Evolution of Murray Valley Encephalitis Virus: Recent Emergence of Distinct Sub-lineages of the Dominant Genotype 1

    PubMed Central

    Williams, David T.; Diviney, Sinéad M.; Niazi, Aziz-ur-Rahman; Durr, Peter A.; Chua, Beng Hooi; Herring, Belinda; Pyke, Alyssa; Doggett, Stephen L.; Johansen, Cheryl A.; Mackenzie, John S.

    2015-01-01

    Background Recent increased activity of the mosquito-borne Murray Valley encephalitis virus (MVEV) in Australia has renewed concerns regarding its potential to spread and cause disease. Methodology/Principal Findings To better understand the genetic relationships between earlier and more recent circulating strains, patterns of virus movement, as well as the molecular basis of MVEV evolution, complete pre-membrane (prM) and Envelope (Env) genes were sequenced from sixty-six MVEV strains from different regions of the Australasian region, isolated over a sixty year period (1951–2011). Phylogenetic analyses indicated that, of the four recognized genotypes, only G1 and G2 are contemporary. G1 viruses were dominant over the sampling period and found across the known geographic range of MVEV. Two distinct sub-lineages of G1 were observed (1A and 1B). Although G1B strains have been isolated from across mainland Australia, Australian G1A strains have not been detected outside northwest Australia. Similarly, G2 is comprised of only Western Australian isolates from mosquitoes, suggesting G1B and G2 viruses have geographic or ecological restrictions. No evidence of recombination was found and a single amino acid substitution in the Env protein (S332G) was found to be under positive selection, while several others were found to be under directional evolution. Evolutionary analyses indicated that extant genotypes of MVEV began to diverge from a common ancestor approximately 200 years ago. G2 was the first genotype to diverge, followed by G3 and G4, and finally G1, from which subtypes G1A and G1B diverged between 1964 and 1994. Conclusions/Significance The results of this study provides new insights into the genetic diversity and evolution of MVEV. The demonstration of co-circulation of all contemporary genetic lineages of MVEV in northwestern Australia, supports the contention that this region is the enzootic focus for this virus. PMID:26600318

  20. A paleoclimate rainfall reconstruction in the Murray-Darling Basin (MDB), Australia: 1. Evaluation of different paleoclimate archives, rainfall networks, and reconstruction techniques

    NASA Astrophysics Data System (ADS)

    Ho, Michelle; Kiem, Anthony S.; Verdon-Kidd, Danielle C.

    2015-10-01

    From ˜1997 to 2009 the Murray-Darling Basin (MDB), Australia's largest water catchment and reputed "food bowl," experienced a severe drought termed the "Millennium Drought" or "Big Dry" followed by devastating floods in the austral summers of 2010/2011, 2011/2012, and 2012/2013. The magnitude and severity of these extreme events highlight the limitations associated with assessing hydroclimatic risk based on relatively short instrumental records (˜100 years). An option for extending hydroclimatic records is through the use of paleoclimate records. However, there are few in situ proxies of rainfall or streamflow suitable for assessing hydroclimatic risk in Australia and none are available in the MDB. In this paper, available paleoclimate records are reviewed and those of suitable quality for hydroclimatic risk assessments are used to develop preinstrumental information for the MDB. Three different paleoclimate reconstruction techniques are assessed using two instrumental rainfall networks: (1) corresponding to rainfall at locations where rainfall-sensitive Australian paleoclimate archives currently exist and (2) corresponding to rainfall at locations identified as being optimal for explaining MDB rainfall variability. It is shown that the optimized rainfall network results in a more accurate model of MDB rainfall compared to reconstructions based on rainfall at locations where paleoclimate rainfall proxies currently exist. This highlights the importance of first identifying key locations where existing and as yet unrealized paleoclimate records will be most useful in characterizing variability. These results give crucial insight as to where future investment and research into developing paleoclimate proxies for Australia could be most beneficial, with respect to better understanding instrumental, preinstrumental and potential future variability in the MDB.

  1. Application of FISK, an invasiveness screening tool for non-native freshwater fishes, in the Murray-Darling Basin (southeastern Australia).

    PubMed

    Vilizzi, Lorenzo; Copp, Gordon H

    2013-08-01

    The Fish Invasiveness Scoring Kit (FISK) is currently one of the most popular pre-screening tools for freshwater fishes. A recent upgrade has ensured its wider climatic relevance to countries with subtropical regions. This enhancement is of particular importance to Australia, which encompasses tropical, arid, and temperate zones, and where the introduction of non-native fish species poses a significant risk to biodiversity. In this study, 55 fish species previously evaluated in a U.K.-based calibration of FISK are reassessed for their potential invasiveness in the Murray-Darling Basin (MDB; southeastern Australia), the continent's largest catchment encompassing arid and temperate climates. Approximately half of the species were classed as "medium risk" and the other half as "high risk," and the ≥19 threshold previously identified from the calibration study was confirmed. The three highest scoring species (common carp Cyprinus carpio carpio, goldfish Carassius auratus, and eastern mosquitofish Gambusia holbrooki) were those already present and invasive in the area, whereas nearly half of the tropical and subtropical species had lower scores compared to U.K. assessments, possibly because of climate change predictions of drier conditions across the MDB. There were some discordances between FISK and two Australian-based assessment protocols, one of which is qualitative and the other represents a simplified version of FISK. Notably, the Australian origins of FISK should provide for an additional reason for further applications of the tool in other RA areas (i.e., drainage basins) of the continent, ultimately encouraging adoption as the country's reference screening tool for management and conservation purposes.

  2. Benchmarking Passive Seismic Methods of Imaging Surface Wave Velocity Interfaces Down to 300 m — Mapping Murray Basin Thickness in Southeastern Australia

    NASA Astrophysics Data System (ADS)

    Gorbatov, A.; Czarnota, K.

    2015-12-01

    In shallow passive seismology it is generally thought that the spatial autocorrelation (SPAC) method is more robust than the horizontal over vertical spectral ratio (HVSR) method at resolving the depth to surface-wave velocity (Vs) interfaces. Here we present results of a field test of these two methods over ten drill sites in Victoria, Australia. The target interface is the base of Cenozoic unconsolidated to semi-consolidated clastic and/or carbonate sediments of the Murray Basin, which overlie Paleozoic crystalline rocks. Drilled depths of this interface are between 27 and 300 m. A three-arm spiral array, with a radius of 250 m, consisting of 13 Trillium compact broadband seismometers was deployed at each site for 7-21 hours. The Vs architecture beneath each site was determined through nonlinear inversion of HVSR and SPAC data using the neighborhood algorithm of Sambridge (1999) implemented in geopsy by Wathelet et al (2005). The HVSR technique yielded depth estimates, of the target interface (Vs > 1000 m/s), generally within 20% error. Successful estimates were even obtained at a site with an inverted velocity profile, where Quaternary basalts overlie Neogene sediments. Half of the SPAC estimates showed significantly higher errors than obtained using HVSR. Joint inversion provided the most reliable estimates but was unstable at three sites. We attribute the surprising success of HVSR over SPAC to a low content of transient signals within the seismic record caused by low degrees of anthropogenic noise at the benchmark sites. At a few sites SPAC curves showed clear overtones suggesting that more reliable SPAC estimates maybe obtained utilizing a multi modal inversion. Nevertheless, our study seems to indicate that reliable basin thickness estimates in remote Australia can be obtained utilizing HVSR data from a single seismometer, without a priori knowledge of the surface-wave velocity of the basin material, thereby negating the need to deploy cumbersome arrays.

  3. Quantifying water requirements of riparian river red gum (Eucalyptus camaldulensis) in the Murray-Darling Basin, Australia: Implications for the management of environmental flows

    USGS Publications Warehouse

    Doody, Tanya M.; Colloff, Matthew J.; Davies, Micah; Koul, Vijay; Benyon, Richard G.; Nagler, Pamela L.

    2015-01-01

    Water resource development and drought have altered river flow regimes, increasing average flood return intervals across floodplains in the Murray-Darling Basin, Australia, causing health declines in riparian river red gum (Eucalyptus camaldulensis) forests and woodlands. Environmental flow allocations helped to alleviate water stress during the recent Millennium Drought (1997–2010), however, quantification of the flood frequency required to support healthy E. camaldulensis communities is still needed. We quantified water requirements of E. camaldulensis for two years across a flood gradient (trees inundated at frequencies of 1:2, 1:5 and 1:10 years) at Yanga National Park, New South Wales to help inform management decision-making and design of environmental flows. Sap flow, evaporative losses and soil moisture measurements were used to determine transpiration, evapotranspiration and plant-available soil water before and after flooding. A formula was developed using plant-available soil water post-flooding and average annual rainfall, to estimate maintenance time of soil water reserves in each flood frequency zone. Results indicated that soil water reserves could sustain 1:2 and 1:5 trees for 15 months and six years, respectively. Trees regulated their transpiration rates, allowing them to persist within their flood frequency zone, and showed reduction in active sapwood area and transpiration rates when flood frequencies exceeded 1:2 years. A leaf area index of 0.5 was identified as a potential threshold indicator of severe drought stress. Our results suggest environmental water managers may have greater flexibility to adaptively manage floodplains in order to sustain E. camaldulensis forests and woodlands than has been appreciated hitherto.

  4. Understanding the role of farm dams in the Murray-Darling Basin in Australia through hydrological analysis coupled with stakeholder interviews

    NASA Astrophysics Data System (ADS)

    Kuil, Linda; Winnubst, Madelinde; van Dijk, Albert

    2013-04-01

    Climate predictions suggest that surface water availability in the Murray-Darling Basin (MDB) in Australia is more likely to decline than to increase in the next decades. In 2000, farm dams were first recognized as a significant risk to future flows in the MDB and have since been the subject of hydrological research. This study was conducted to provide insight into the role of farm dams in the Yass catchment, which is a subcatchment of the MDB close to Canberra, in order to indentify obstacles for integrated water management. The role of farm dams was investigated from both a hydrological and social perspective. Model prediction and data inference were used to estimate the impact of farm dams on streamflow. The density of farm dams in the catchment was estimated at 5.7 dams km-2. The impact on the Yass River was simulated to be in the order of 20 percent of mean annual streamflow. To understand why farm dams are used, semi-structured interviews were conducted to capture views and opinions of land holders. Research found that farm dams play a very important role in terms of individuals' water supply, although other systems are also used. Furthermore, land holders are responsible for their own water supply for drinking and agricultural water needs. Water rights are based on a right to rainfall or groundwater that is present on an individual's property. This means that landholders have both a need and a right to collect and store runoff. Current legislation put in place by the New South Wales government to restrict the amount of rain water to be captured does not seem to affect most people. If additional policy to minimize the impact of farm dams on streamflow were to be introduced, this has to be based on well-thought-out arguments based on a long term vision as the interview results indicate that farm dams are deeply embedded in Australian rural culture.

  5. Wide-area estimates of evapotranspiration by red gum (Eucalyptus camaldulensis) and associated vegetation in the Murray-Darling River Basin, Australia

    USGS Publications Warehouse

    Nagler, Pamela L.; Doody, Tanya M.; Glenn, Edward P.; Jarchow, Christopher J; Barreto-Munoz, Armando; Didan, Kamel

    2016-01-01

    Floodplain red gum forests (Eucalyptus camaldulensis plus associated grasses, reeds and sedges) are sites of high biodiversity in otherwise arid regions of southeastern Australia. They depend on periodic floods from rivers, but dams and diversions have reduced flood frequencies and volumes, leading to deterioration of trees and associated biota. There is a need to determine their water requirements so environmental flows can be administered to maintain or restore the forests. Their water requirements include the frequency and extent of overbank flooding, which recharges the floodplain soils with water, as well as the actual amount of water consumed in evapotranspiration (ET). We estimated the flooding requirements and ET for a 38 134 ha area of red gum forest fed by the Murrumbidgee River in Yanga National Park, New South Wales. ET was estimated by three methods: sap flux sensors placed in individual trees; a remote sensing method based on the Enhanced Vegetation Index from MODIS satellite imagery and a water balance method based on differences between river flows into and out of the forest. The methods gave comparable estimates yet covered different spatial and temporal scales. We estimated flood frequency and volume requirements by comparing Normalized Difference Vegetation Index values from Landsat images with flood history from 1995 to 2014, which included both wet periods and dry periods. ET during wet years is about 50% of potential ET but is much less in dry years because of the trees' ability to control stomatal conductance. Based on our analyses plus other studies, red gum trees at this location require environmental flows of 2000 GL yr−1 every other year, with peak flows of 20 000 ML d−1, to produce flooding sufficient to keep them in good condition. However, only about 120–200 GL yr−1 of river water is consumed in ET, with the remainder flowing out of the forest where it enters the Murray River system.

  6. Long-term exposures to di-n-butyl phthalate inhibit body growth and impair gonad development in juvenile Murray rainbowfish (Melanotaenia fluviatilis).

    PubMed

    Bhatia, Harpreet; Kumar, Anupama; Chapman, John C; McLaughlin, Mike J

    2015-07-01

    The aim of the present study was to evaluate whether long-term exposures to environmentally relevant concentrations of di-n-butyl phthalate (DnBP) disrupt the reproduction-based endpoints in juvenile Murray rainbowfish (Melanotaenia fluviatilis). Fish were exposed to 5, 15 or 50 µg l(-1) DnBP for 30, 60 and 90 days each, and the effects on survival, body growth, whole-body concentrations of sex steroid hormones and gonadal development were investigated. The lowest observed effective concentration to affect the condition factor after 90 days was 5 µg l(-1). Complete feminization of the gonad was noted in fish exposed to 5 µg l(-1) for 90 days and to 15 and 50 µg l(-1) of DnBP for 30 or 60 days. After 90 days of exposure to DnBP, the ovaries were regressed and immature as opposed to the control fish which were in early-vitellogenic stage. Testes, present only in fish exposed to 5 µg l(-1) of DnBP for 30 or 60 days, were immature in comparison to the control fish that contained testes in the mid-spermatogenic phase. The E2/11-KT ratio was significantly higher only after exposures to 5 µg l(-1) DnBP for 90 days and 50 µg l(-1) DnBP for 30 days. Our data suggest that exposures to 5 µg l(-1) DnBP for 30 days did not have profound effects on body growth and gonadal differentiation of fish. However, 30 days of exposure to 15 µg l(-1) could interfere with the gonad development and to 50 µg l(-1) could compromise the hormonal profile of juvenile fish.

  7. Hydroclimatic projections for the Murray-Darling Basin based on an ensemble derived from Intergovernmental Panel on Climate Change AR4 climate models

    NASA Astrophysics Data System (ADS)

    Sun, Fubao; Roderick, Michael L.; Lim, Wee Ho; Farquhar, Graham D.

    2011-12-01

    We assess hydroclimatic projections for the Murray-Darling Basin (MDB) using an ensemble of 39 Intergovernmental Panel on Climate Change AR4 climate model runs based on the A1B emissions scenario. The raw model output for precipitation, P, was adjusted using a quantile-based bias correction approach. We found that the projected change, ΔP, between two 30 year periods (2070-2099 less 1970-1999) was little affected by bias correction. The range for ΔP among models was large (˜±150 mm yr-1) with all-model run and all-model ensemble averages (4.9 and -8.1 mm yr-1) near zero, against a background climatological P of ˜500 mm yr-1. We found that the time series of actually observed annual P over the MDB was indistinguishable from that generated by a purely random process. Importantly, nearly all the model runs showed similar behavior. We used these facts to develop a new approach to understanding variability in projections of ΔP. By plotting ΔP versus the variance of the time series, we could easily identify model runs with projections for ΔP that were beyond the bounds expected from purely random variations. For the MDB, we anticipate that a purely random process could lead to differences of ±57 mm yr-1 (95% confidence) between successive 30 year periods. This is equivalent to ±11% of the climatological P and translates into variations in runoff of around ±29%. This sets a baseline for gauging modeled and/or observed changes.

  8. A synthetic peptide to the E glycoprotein of Murray Valley encephalitis virus defines multiple virus-reactive T- and B-cell epitopes.

    PubMed Central

    Mathews, J H; Roehrig, J T; Brubaker, J R; Hunt, A R; Allan, J E

    1992-01-01

    Synthetic peptides from the envelope glycoprotein sequence of Murray Valley encephalitis (MVE) virus were previously evaluated in various strains of mice for both the induction of antibody and the in vitro proliferation of peptide-primed T-helper (Th) cells. MVE peptide 6 (amino acids 230 to 251) elicited reciprocal Th- and B-cell reactivity with native MVE virus after primary inoculation of C57BL/6 mice. In this study, we prepared overlapping subunit peptides of MVE peptide 6 and evaluated their immunogenicity. Analysis of these peptides delineated at least two B-cell epitopes that induced antibody reactive with MVE and other Japanese encephalitis serocomplex viruses. This antibody at low titer neutralized MVE virus. Genetic restriction of the antibody response to various T-cell elements within peptide 6 was observed in C3H, BALB/c, C57BL/6, and B10 congenic mice. One element demonstrable after primary immunization, located in the carboxy terminus, associated only with major histocompatibility complex class II IAb and IAbiEk glycoproteins. Functional stimulation with the peptides in association with IAkIEk and IAdIEd molecules was observed only after in vivo secondary stimulation. Peptide 6-1 (amino acids 230 to 241) was nonimmunogenic but could be recognized by Th cells from peptide 6-immunized mice. Further association of peptide 6 with the IAkIEk and IAdIEd subregions was demonstrated by the finding that T cells from MVE peptide 6-inoculated C3H and BALB/c mice primed for an antibody response to MVE virus. These results suggest that the peptide 6 sequence, which is relatively conserved among a number of flaviviruses, should be given consideration when synthetic immunogens for vaccine purposes are designed. PMID:1383567

  9. A new insect-specific flavivirus from northern Australia suppresses replication of West Nile virus and Murray Valley encephalitis virus in co-infected mosquito cells.

    PubMed

    Hobson-Peters, Jody; Yam, Alice Wei Yee; Lu, Jennifer Wei Fei; Setoh, Yin Xiang; May, Fiona J; Kurucz, Nina; Walsh, Susan; Prow, Natalie A; Davis, Steven S; Weir, Richard; Melville, Lorna; Hunt, Neville; Webb, Richard I; Blitvich, Bradley J; Whelan, Peter; Hall, Roy A

    2013-01-01

    Recent reports of a novel group of flaviviruses that replicate only in mosquitoes and appear to spread through insect populations via vertical transmission have emerged from around the globe. To date, there is no information on the presence or prevalence of these insect-specific flaviviruses (ISFs) in Australian mosquito species. To assess whether such viruses occur locally, we used reverse transcription-polymerase chain reaction (RT-PCR) and flavivirus universal primers that are specific to the NS5 gene to detect these viruses in mosquito pools collected from the Northern Territory. Of 94 pools of mosquitoes, 13 were RT-PCR positive, and of these, 6 flavivirus isolates were obtained by inoculation of mosquito cell culture. Sequence analysis of the NS5 gene revealed that these isolates are genetically and phylogenetically similar to ISFs reported from other parts of the world. The entire coding region of one isolate (designated 56) was sequenced and shown to have approximately 63.7% nucleotide identity and 66.6% amino acid identity with its closest known relative (Nakiwogo virus) indicating that the prototype Australian ISF represents a new species. All isolates were obtained from Coquillettidia xanthogaster mosquitoes. The new virus is tentatively named Palm Creek virus (PCV) after its place of isolation. We also demonstrated that prior infection of cultured mosquito cells with PCV suppressed subsequent replication of the medically significant West Nile and Murray Valley encephalitis viruses by 10-43 fold (1 to 1.63 log) at 48 hr post-infection, suggesting that superinfection exclusion can occur between ISFs and vertebrate-infecting flaviviruses despite their high level of genetic diversity. We also generated several monoclonal antibodies (mAbs) that are specific to the NS1 protein of PCV, and these represent the first ISF-specific mAbs reported to date.

  10. A New Insect-Specific Flavivirus from Northern Australia Suppresses Replication of West Nile Virus and Murray Valley Encephalitis Virus in Co-infected Mosquito Cells

    PubMed Central

    Hobson-Peters, Jody; Yam, Alice Wei Yee; Lu, Jennifer Wei Fei; Setoh, Yin Xiang; May, Fiona J.; Kurucz, Nina; Walsh, Susan; Prow, Natalie A.; Davis, Steven S.; Weir, Richard; Melville, Lorna; Hunt, Neville; Webb, Richard I.; Blitvich, Bradley J.; Whelan, Peter; Hall, Roy A.

    2013-01-01

    Recent reports of a novel group of flaviviruses that replicate only in mosquitoes and appear to spread through insect populations via vertical transmission have emerged from around the globe. To date, there is no information on the presence or prevalence of these insect-specific flaviviruses (ISFs) in Australian mosquito species. To assess whether such viruses occur locally, we used reverse transcription-polymerase chain reaction (RT-PCR) and flavivirus universal primers that are specific to the NS5 gene to detect these viruses in mosquito pools collected from the Northern Territory. Of 94 pools of mosquitoes, 13 were RT-PCR positive, and of these, 6 flavivirus isolates were obtained by inoculation of mosquito cell culture. Sequence analysis of the NS5 gene revealed that these isolates are genetically and phylogenetically similar to ISFs reported from other parts of the world. The entire coding region of one isolate (designated 56) was sequenced and shown to have approximately 63.7% nucleotide identity and 66.6% amino acid identity with its closest known relative (Nakiwogo virus) indicating that the prototype Australian ISF represents a new species. All isolates were obtained from Coquillettidia xanthogaster mosquitoes. The new virus is tentatively named Palm Creek virus (PCV) after its place of isolation. We also demonstrated that prior infection of cultured mosquito cells with PCV suppressed subsequent replication of the medically significant West Nile and Murray Valley encephalitis viruses by 10–43 fold (1 to 1.63 log) at 48 hr post-infection, suggesting that superinfection exclusion can occur between ISFs and vertebrate-infecting flaviviruses despite their high level of genetic diversity. We also generated several monoclonal antibodies (mAbs) that are specific to the NS1 protein of PCV, and these represent the first ISF-specific mAbs reported to date. PMID:23460804

  11. In vitro nuclear receptor activity and in vivo gene expression analysis in Murray-Darling rainbowfish (Melanotaenia fluviatilis) after short-term exposure to fluoxetine.

    PubMed

    Bain, Peter A; Basheer, V S; Gregg, Adrienne; Jena, J K; Kumar, Anu

    2016-10-01

    Fluoxetine (FLX) is one of numerous pharmaceuticals found in treated municipal wastewater discharged to the environment. In the present study, we investigated the effects of short-term (96h) waterborne FLX exposure (1μg/L or 100μg/L) on the expression of selected genes in brain, liver, and gonads of female Murray-Darling rainbowfish (Melanotaenia fluviatilis), a small-bodied teleost of ecotoxicological relevance in the Australasia region. Plasma 17β-estradiol (E2) levels were also determined. In the brain, no significant changes in mRNA levels were observed for the selected genes. In ovaries, 100μg/L FLX caused a 10-fold downregulation of aromatase A (cyp19a1a) mRNA and a 4-fold upregulation of estrogen receptor α (esr1) mRNA levels. In liver, mRNA levels for vitellogenin A (vtga) and choriogenin L (chgl) were downregulated by 50-fold and 18-fold compared with controls, respectively, in response to 100μg/L FLX. Concentrations of E2 in plasma were significantly lower than controls in response to 100μg/L FLX. This could be attributable to a decrease in estrogen biosynthesis as a result of the observed downregulation of cyp19a1a mRNA. To establish whether the observed changes in gene expression could be explained by the modulation of selected nuclear receptors by FLX, we employed panel of reporter gene assays in agonistic and antagonistic modes. Apart from minor activation of ERα after exposure to high concentrations (5μM), FLX did not activate or inhibit the nuclear receptors tested. Further study is required to determine whether the observed downregulation of ovarian aromatase expression and liver estrogen-regulated genes also occurs at environmentally relevant FLX concentrations over longer exposure periods.

  12. Estimates of evapotranspiration for riparian sites (Eucalyptus) in the Lower Murray -Darling Basin using ground validated sap flow and vegetation index scaling techniques

    NASA Astrophysics Data System (ADS)

    Doody, T.; Nagler, P. L.; Glenn, E. P.

    2014-12-01

    Water accounting is becoming critical globally, and balancing consumptive water demands with environmental water requirements is especially difficult in in arid and semi-arid regions. Within the Murray-Darling Basin (MDB) in Australia, riparian water use has not been assessed across broad scales. This study therefore aimed to apply and validate an existing U.S. riparian ecosystem evapotranspiration (ET) algorithm for the MDB river systems to assist water resource managers to quantify environmental water needs over wide ranges of niche conditions. Ground-based sap flow ET was correlated with remotely sensed predictions of ET, to provide a method to scale annual rates of water consumption by riparian vegetation over entire irrigation districts. Sap flux was measured at nine locations on the Murrumbidgee River between July 2011 and June 2012. Remotely sensed ET was calculated using a combination of local meteorological estimates of potential ET (ETo) and rainfall and MODIS Enhanced Vegetation Index (EVI) from selected 250 m resolution pixels. The sap flow data correlated well with MODIS EVI. Sap flow ranged from 0.81 mm/day to 3.60 mm/day and corresponded to a MODIS-based ET range of 1.43 mm/day to 2.42 mm/day. We found that mean ET across sites could be predicted by EVI-ETo methods with a standard error of about 20% across sites, but that ET at any given site could vary much more due to differences in aquifer and soil properties among sites. Water use was within range of that expected. We conclude that our algorithm developed for US arid land crops and riparian plants is applicable to this region of Australia. Future work includes the development of an adjusted algorithm using these sap flow validated results.

  13. A century scale human-induced hydrological and ecological changes of wetlands of two large river basins in Australia (Murray) and China (Yangtze): development of an adaptive water resource management framework

    NASA Astrophysics Data System (ADS)

    Kattel, G. R.; Dong, X.; Yang, X.

    2015-08-01

    Recently, the provision of food and water resources of two of the world's large river basins, the Murray and the Yangtze, has been significantly altered through widespread landscape modification. Long-term sedimentary archives, dating back to past centuries, from wetlands of these river basins reveal that rapid, basin-wide development has reduced resilience of biological communities, resulting in considerable decline in ecosystem services, including water quality. In particular, large-scale human disturbance to river systems, due to river regulation during the mid-20th century, has transformed the hydrology of rivers and wetlands, causing widespread disturbance to aquatic biological communities. Historical changes of cladoceran zooplankton (water fleas) were used to assess the hydrology and ecology of three Murray and Yangtze River wetlands over the past century. Subfossil assemblages of cladocerans retrieved from sediment cores (94, 45 and 65 cm) of three wetlands: Kings Billabong (Murray), Zhangdu and Liangzi Lakes (Yangtze) strongly responded to hydrological changes of the river after the mid-20th century. River regulation caused by construction of dams and weirs, and river channel modifications has led to hydrological alterations. The hydrological disturbances were either: (1) a prolonged inundation of wetlands, or (2) reduced river flow, which caused variability in wetland depth. These phenomena subsequently transformed the natural wetland habitats, leading to a switch in cladoceran assemblages preferring poor water quality and eutrophication. An adaptive water resource management framework for both of these river basins has been proposed to restore or optimize the conditions of wetland ecosystems impacted by 20th century human disturbance and climate change.

  14. Nortestosterone-derived synthetic progestogens do not activate the progestogen receptor of Murray-Darling rainbowfish (Melanotaenia fluviatilis) but are potent agonists of androgen receptors alpha and beta.

    PubMed

    Bain, Peter A; Kumar, Anu; Ogino, Yukiko; Iguchi, Taisen

    2015-06-01

    Synthetic progestogens derived from 19-nortestosterone can elicit a number of adverse effects in fish including decreased fecundity, altered hormone levels, disruption of normal breeding cycles, expression in females of male-specific biomarkers, development of male secondary sexual characteristics in females, and changes in the expression of steroidogenic genes. A recent in vitro study showed that a number of representatives from this class of progestins were potent agonists of fathead minnow androgen receptor (AR) and only weak agonists of progesterone receptor (PR) from the same species. This confirms that synthetic progestogens derived from 19-nortestosterone function as AR agonists in otomorphs, which express a single AR subtype. However, numerous perciformes are known to express two AR subtypes. We have recently shown that ARα and ARβ from Murray-Darling rainbowfish (Melanotaenia fluviatilis) respond differently to certain androgens and anti-androgens. The goal of the present study was to determine concentration-response profiles for selected progestins in transactivation assays driven by rainbowfish ARα, ARβ and PR in order to ascertain the relative potency of progestins against these receptors. As a means of confirming the expected activity of the progestins and reference compounds used in the study against human-derived receptors, we also established concentration-response relationships using transactivation assays driven by human PR and AR. We found that all five 19-nortestosterone-derived progestins tested were highly potent agonists of rainbowfish ARα, but that only four of the five progestins were potent agonists of rainbowfish ARβ, with norgestimate exhibiting only weak activity against rainbowfish ARβ. The spironolactone-derived progestin, drospirenone, was not an agonist of rainbowfish ARα or ARβ but was a weak agonist of rainbowfish PR. None of the 19-nortestosterone-progestins activated rainbowfish PR. These findings confirm that the

  15. Changes in acidity and metal geochemistry in soils, groundwater, drain and river water in the Lower Murray River after a severe drought.

    PubMed

    Mosley, Luke M; Fitzpatrick, Rob W; Palmer, David; Leyden, Emily; Shand, Paul

    2014-07-01

    Acid sulfate soils with sulfuric material (pH<4) can have significant impacts on surface water quality and aquatic ecosystems due to low pH and high soluble metal concentrations in runoff and drainage discharges. There has been limited research on the complex geochemical transformations that occur along flow pathways from the soil acidity source to receiving waters. We studied the integrated geochemistry of metals in acid sulfate soils with sulfuric material, groundwater, drain and river water in the Lower Murray River (South Australia) over a 2 year period. The oxidation of an estimated 3500 ha of acid sulfate soils with sulfidic material (pH>4) underlying this former floodplain occurred due to falling river and groundwater levels during the 2006-2010 extreme "millennium" drought. A low pH (<4.5) soil layer was found approximately 1-2.5m below ground level with substantial amounts (up to 0.2 mol H(+)/kg dry weight) of available/soluble acidity and retained acidity in the form of the Fe oxyhydroxy sulfate mineral jarosite. The jarosite appears to be dissolving over time and buffering the sub-surface soil layers at pH≈4. Metal (Fe, Al, Mn) and metalloid (As) lability was greatly increased in the acidic soil layer. Highly acidic and metal rich groundwater (median pH 4.3, Fe, Al, Mn of 0.04-0.52 mmol/L) was observed at the same depths as the acidic soil layers. Nearly all of the dissolved Fe in the groundwater was present as Fe(2+). In the drains, increases in pH and redox potential promoted formation of the Fe oxyhydroxysulfate mineral schwertmannite. This mineral precipitation transferred a portion of the dissolved acidity to the drain sediments. Upon discharge to, and dilution of, the acid drainage in the river, pH neutralisation and rapid oxidation, hydrolysis, and precipitation of solid Al and Fe phases occurred in a localised area. Acidity is persisting (>3 years) following a return to pre-drought water levels.

  16. Modelling the impacts of climate change on wheat yield and field water balance over the Murray-Darling Basin in Australia

    NASA Astrophysics Data System (ADS)

    Wang, Jing; Wang, Enli; Liu, De Li

    2011-06-01

    The study used a modelling approach to assess the potential impacts of likely climate change and increase in CO2 concentration on the wheat growth and water balance in Murray-Darling Basin in Australia. Impacts of individual changes in temperature, rainfall or CO2 concentration as, well as the 2050 and 2070 climate change scenarios, were analysed. Along an E-W transect, wheat yield at western sites (warmer and drier) was simulated to be more sensitive to temperature increase than that at eastern sites; along the S-N transect, wheat yield at northern warmer sites was simulated to be more sensitive to temperature increase, within 1-3°C temperature increase. Along the E-W and S-N transects, wheat at drier sites would benefit more from elevated [CO2] than at wetter sites, but more sensitive to the decline in rainfall. The increase in temperature only did not have much impact on water balance. Elevated [CO2] increased the drainage in all the sites, whilst rainfall reduction decreased evapotranspiration, runoff and drainage, especially at drier sites. In 2050, wheat yield would increase by 1-10% under all climate change scenarios along the S-N transect, except for the northernmost site (Dalby). Along the E-W transect, the most obvious increase of wheat yields under all climate change scenarios occurred in cooler and wetter eastern sites (Yass and Young), with an average increase rate of 7%. The biggest loss occurred at the driest sites (Griffith and Swan Hill) under A1FI and B2 scenarios, ranging from -5% to -16%. In 2070, there would be an increased risk of yield loss in general, except for the cool and wet sites. Water use efficiency was simulated to increase at most of the study sites under all the climate change scenarios, except for the driest site. Yield variability would increase at drier sites (Ardlethan, Griffith and Swan Hill). Soil types would also impact on the response of wheat yield and water balance to future climate change.

  17. Spatial and temporal dynamic of flooding and vegetation response to flooding using remotely sensed data in the Murray -Darling Basin, Australia

    NASA Astrophysics Data System (ADS)

    Tulbure, Mirela; Kingsford, Richard; Broich, Mark

    2013-04-01

    Australia is the driest inhabited continent and river systems have highly variable flows in space and time. The Murray-Darling Basin (MDB), a catchment covering 14% of the continent contains the nation's largest rivers and important groundwater systems. The basin has highly variable rainfall patterns in space and time and is home to several wetlands of high hydrological and ecological value. However, variation in surface and ground water availability exacerbated by a long period of drought, combined with high water demands for irrigation, human use, and ecosystem health led to the need of managing water resources in an integrated fashion. Flushes of water, stored in dams, are being released during dry periods as environmental flows. Assessment of water resources and understanding of the effectiveness of environmental flows requires knowledge of long term trends in occurrence and extent of surface water and vegetation response to flooding and environmental flows. Satellite remote sensing is the only viable way for synoptically mapping and monitoring the extent and dynamic of flooding and vegetation response to flooding. Recent La Nina -induced extreme flooding broke a decade long of drought and made 2010 the wettest calendar year on record in the MDB. This represents a unique opportunity to develop predictive models relating flow regime to vegetation response and identify trends over long term and across a large space in a drying yet highly variable climate. Using an internally consistent method, Landsat TM and ETM+ data were used to synoptically map the extent and dynamic of surface water bodies and track the response of vegetation communities to flooding in space and time at Barmah-Millewa, the largest river red gum forest in the world and one of the icon sites in the MDB. Per pixel trajectory of surface water and vegetation index time series were used. Results show high interannual variability in number and size of flooded areas and a strong relationship with

  18. Epizootic activity of Murray Valley encephalitis and Kunjin viruses in an aboriginal community in the southeast Kimberley region of Western Australia: results of mosquito fauna and virus isolation studies.

    PubMed

    Broom, Annette K; Lindsay, Michael D A; Wright, Anthony E; Smith, David W; Mackenzie, John S

    2003-09-01

    We undertook annual surveys of flavivirus activity in the community of Billiluna in the southeast Kimberley region of Western Australia between 1989 and 2001 [corrected]. Culex annulirostris was the dominant mosquito species, particularly in years of above average rains and flooding. Murray Valley encephalitis (MVE) virus was isolated in 8 of the 13 years of the study from seven mosquito species, but more than 90% of the isolates were from Cx. annulirostris. The results suggest that MVE virus is epizootic in the region, w ith activity only apparent in years with average or above average rainfall and increased numbers of Cx. annulirostris. High levels of MVE virus activity and associated human cases were detected only once (in 1993) during the survey period. Activity of MVE virus could only be partially correlated with wet season rainfall and flooding, suggesting that a number of other factors must also be considered to accurately predict MVE virus activity at such communities.

  19. Co-treatment with the non-steroidal anti-androgen drug, flutamide and the natural estrogen, 17β-estradiol does not lead to additive reproductive impairment in juvenile Murray rainbowfish (Melanotaenia fluviatilis).

    PubMed

    Bhatia, Harpreet; Kumar, Anupama; Du, Jun; Chapman, John C; McLaughlin, Mike J

    2015-11-01

    The aim of this study was to investigate if the anti-androgen, flutamide, and the estrogen, 17β-estradiol work together to feminize juvenile Murray rainbowfish (Melanotaenia fluviatilis). Fish (60 days post-hatch) were exposed to 25 ng/L 17β-estradiol (E2), 25 µg/L flutamide (Flu low), 250 µg/L flutamide (Flu high), E2 + Flu low and E2 + Flu high. After 35 days of exposure, concentrations of sex steroid hormones, 17β-estradiol and 11-keto testosterone (11-KT), were determined in the head; and vitellogenin (VTG) concentration was measured in the tail. The abdomens were used for histological investigation of the gonads. Treatment with E2 + Flu high resulted in reduction in body weights and lengths in males and condition factor in females. Intersex was noted in Flu high and E2 + Flu high treatments. Exposures to E2 and/or Flu (low and high) resulted in precocious oocyte development but inhibited sperm development. The 17β-estradiol levels decreased significantly in the heads of both sexes after exposures to E2 and/or Flu (high and low). Flu high and E2 alone increased the 11-KT levels in both sexes. However, E2 + Flu low decreased 11-KT levels in males and increased them in females. Flutamide (low and high) induced VTG protein in the tails of both sexes. In males, VTG was not induced in the tail after exposure to E2. No significant effect of flutamide on E2-induced VTG concentration was noted. We conclude that co-treatment with flutamide and 17β-estradiol does not lead to additive reproductive impairment in juvenile Murray rainbowfish.

  20. A P2 and P3 substrate specificity comparison between the Murray Valley encephalitis and West Nile virus NS2B/NS3 protease using C-terminal agmatine dipeptides.

    PubMed

    Ang, Melgious Jin Yan; Li, Zhitao; Lim, Huichang Annie; Ng, Fui Mee; Then, Siew Wen; Wee, John Liang Kuan; Joy, Joma; Hill, Jeffrey; Chia, C S Brian

    2014-02-01

    The Murray Valley encephalitis virus (MVEV) and the West Nile virus (WNV) are mosquito-borne single-stranded RNA Flaviviruses responsible for many cases of viral encephalitis and deaths worldwide. The former is endemic in north Australia and Papua New Guinea while the latter has spread to different parts of the world and was responsible for a recent North American outbreak in 2012, resulting in 243 fatalities. There is currently no approved vaccines or drugs against MVEV and WNV viral infections. A plausible drug target is the viral non-structural NS2B/NS3 protease due to its role in viral replication. This trypsin-like serine protease recognizes and cleaves viral polyproteins at the C-terminal end of an arginine residue, opening an avenue for the development of peptide-based antivirals. This communication compares the P2 and P3 residue preferences of the MVEV and WNV NS2B/NS3 proteases using a series of C-terminal agmatine dipeptides. Our results revealed that both viral enzymes were highly specific toward lysines at the P2 and P3 positions, suggesting that a peptidomimetic viral protease inhibitor developed against one virus should also be active against the other.

  1. The alternative Pharaoh approach: stingless bees mummify beetle parasites alive

    NASA Astrophysics Data System (ADS)

    Greco, Mark K.; Hoffmann, Dorothee; Dollin, Anne; Duncan, Michael; Spooner-Hart, Robert; Neumann, Peter

    2010-03-01

    Workers from social insect colonies use different defence strategies to combat invaders. Nevertheless, some parasitic species are able to bypass colony defences. In particular, some beetle nest invaders cannot be killed or removed by workers of social bees, thus creating the need for alternative social defence strategies to ensure colony survival. Here we show, using diagnostic radioentomology, that stingless bee workers ( Trigona carbonaria) immediately mummify invading adult small hive beetles ( Aethina tumida) alive by coating them with a mixture of resin, wax and mud, thereby preventing severe damage to the colony. In sharp contrast to the responses of honeybee and bumblebee colonies, the rapid live mummification strategy of T. carbonaria effectively prevents beetle advancements and removes their ability to reproduce. The convergent evolution of mummification in stingless bees and encapsulation in honeybees is another striking example of co-evolution between insect societies and their parasites.

  2. Recognition of strong seasonality and climatic cyclicity in an ancient, fluvially dominated, tidally influenced point bar: Middle McMurray Formation, Lower Steepbank River, north-eastern Alberta, Canada

    NASA Astrophysics Data System (ADS)

    Jablonski, Bryce V. J.; Dalrymple, Robert W.

    2016-04-01

    Inclined heterolithic stratification in the Lower Cretaceous McMurray Formation, exposed along the Steepbank River in north-eastern Alberta, Canada, accumulated on point bars of a 30 to 40 m deep continental-scale river in the fluvial-marine transition. This inclined heterolithic stratification consists of two alternating lithologies, sand and fine-grained beds. Sand beds were deposited rapidly by unidirectional currents and contain little or no bioturbation. Fine-grained beds contain rare tidal structures, and are intensely bioturbated by low-diversity ichnofossil assemblages. The alternations between the sand and fine-grained beds are probably caused by strong variations in fluvial discharge; that are believed to be seasonal (probably annual) in duration. The sand beds accumulated during river floods, under fluvially dominated conditions when the water was fresh, whereas the fine-grained beds accumulated during the late stages of the river flood and deposition continued under tidally influenced brackish-water conditions during times of low-river flow (i.e. the interflood periods). These changes reflect the annual migration in the positions of the tidal and salinity limits within the fluvial-marine transition that result from changes in river discharge. Sand and fine-grained beds are cyclically organized in the studied outcrops forming metre-scale cycles. A single metre-scale cycle is defined by a sharp base, an upward decrease in sand-bed thickness and upward increases in the preservation of fine-grained beds and the intensity of bioturbation. Metre-scale cycles are interpreted to be the product of a longer term (decadal) cyclicity in fluvial discharge, probably caused by fluctuations in ocean or solar dynamics. The volumetric dominance of river-flood deposits within the succession suggests that accumulation occurred in a relatively landward position within the fluvial-marine transition. This study shows that careful observation can reveal much about the

  3. Huggins, Margaret Lindsay Murray (1848-1915)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Astronomer, whose early interest in astronomy, taught to her by her grandfather, led to a meeting with and marriage to WILLIAM HUGGINS, a spectroscopist. Together they produced some of the earliest spectra of astronomical objects, particularly the Orion nebula....

  4. Variations on a Theme: Antennal Lobe Architecture across Coleoptera.

    PubMed

    Kollmann, Martin; Schmidt, Rovenna; Heuer, Carsten M; Schachtner, Joachim

    2016-01-01

    Beetles comprise about 400,000 described species, nearly one third of all known animal species. The enormous success of the order Coleoptera is reflected by a rich diversity of lifestyles, behaviors, morphological, and physiological adaptions. All these evolutionary adaptions that have been driven by a variety of parameters over the last about 300 million years, make the Coleoptera an ideal field to study the evolution of the brain on the interface between the basic bauplan of the insect brain and the adaptions that occurred. In the current study we concentrated on the paired antennal lobes (AL), the part of the brain that is typically responsible for the first processing of olfactory information collected from olfactory sensilla on antenna and mouthparts. We analyzed 63 beetle species from 22 different families and thus provide an extensive comparison of principal neuroarchitecture of the AL. On the examined anatomical level, we found a broad diversity including AL containing a wide range of glomeruli numbers reaching from 50 to 150 glomeruli and several species with numerous small glomeruli, resembling the microglomerular design described in acridid grasshoppers and diving beetles, and substructures within the glomeruli that have to date only been described for the small hive beetle, Aethina tumida. A first comparison of the various anatomical features of the AL with available descriptions of lifestyle and behaviors did so far not reveal useful correlations. In summary, the current study provides a solid basis for further studies to unravel mechanisms that are basic to evolutionary adaptions of the insect olfactory system.

  5. Multitrophic interaction facilitates parasite-host relationship between an invasive beetle and the honey bee.

    PubMed

    Torto, Baldwyn; Boucias, Drion G; Arbogast, Richard T; Tumlinson, James H; Teal, Peter E A

    2007-05-15

    Colony defense by honey bees, Apis mellifera, is associated with stinging and mass attack, fueled by the release of alarm pheromones. Thus, alarm pheromones are critically important to survival of honey bee colonies. Here we report that in the parasitic relationship between the European honey bee and the small hive beetle, Aethina tumida, the honey bee's alarm pheromones serve a negative function because they are potent attractants for the beetle. Furthermore, we discovered that the beetles from both Africa and the United States vector a strain of Kodamaea ohmeri yeast, which produces these same honey bee alarm pheromones when grown on pollen in hives. The beetle is not a pest of African honey bees because African bees have evolved effective methods to mitigate beetle infestation. However, European honey bees, faced with disease and pest management stresses different from those experienced by African bees, are unable to effectively inhibit beetle infestation. Therefore, the environment of the European honey bee colony provides optimal conditions to promote the unique bee-beetle-yeast-pollen multitrophic interaction that facilitates effective infestation of hives at the expense of the European honey bee.

  6. Multitrophic interaction facilitates parasite–host relationship between an invasive beetle and the honey bee

    PubMed Central

    Torto, Baldwyn; Boucias, Drion G.; Arbogast, Richard T.; Tumlinson, James H.; Teal, Peter E. A.

    2007-01-01

    Colony defense by honey bees, Apis mellifera, is associated with stinging and mass attack, fueled by the release of alarm pheromones. Thus, alarm pheromones are critically important to survival of honey bee colonies. Here we report that in the parasitic relationship between the European honey bee and the small hive beetle, Aethina tumida, the honey bee's alarm pheromones serve a negative function because they are potent attractants for the beetle. Furthermore, we discovered that the beetles from both Africa and the United States vector a strain of Kodamaea ohmeri yeast, which produces these same honey bee alarm pheromones when grown on pollen in hives. The beetle is not a pest of African honey bees because African bees have evolved effective methods to mitigate beetle infestation. However, European honey bees, faced with disease and pest management stresses different from those experienced by African bees, are unable to effectively inhibit beetle infestation. Therefore, the environment of the European honey bee colony provides optimal conditions to promote the unique bee–beetle–yeast–pollen multitrophic interaction that facilitates effective infestation of hives at the expense of the European honey bee. PMID:17483478

  7. Description of Anaerobacterium chartisolvens gen. nov., sp. nov., an obligately anaerobic bacterium from Clostridium rRNA cluster III isolated from soil of a Japanese rice field, and reclassification of Bacteroides cellulosolvens Murray et al. 1984 as Pseudobacteroides cellulosolvens gen. nov., comb. nov.

    PubMed

    Horino, Haruka; Fujita, Takashi; Tonouchi, Akio

    2014-04-01

    An obligately anaerobic bacterial strain designated T-1-35(T) was isolated as a dominant cultivable cellulose-degrading bacterium from soil of a Japanese rice field as an anaerobic filter-paper degrader. Cells of strain T-1-35(T) stained Gram-positive and were non-spore-forming rods with rounded ends, 0.8-1.0×3.5-15.0 µm, and motile by means of two to four polar flagella. Cells of strain T-1-35(T) exhibited pleomorphism: in aged cultures (over 90 days of incubation), almost all cells were irregularly shaped. Although no spore formation was observed, cells tolerated high temperatures, up to 90 °C for 10 min. The temperature range for growth was 15-40 °C, with an optimum at 35 °C. The pH range for growth was 5.5-9.0, with an optimum at pH 8.0-8.5 (slightly alkaliphilic). Strain T-1-35(T) fermented some carbohydrates to produce ethanol and lactate as the major products. Major cellular fatty acids were iso-C16 : 0 and iso-C13 : 0 3-OH. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that strain T-1-35(T) belonged to Clostridium rRNA cluster III. The closest relative of strain T-1-35(T) was Bacteroides cellulosolvens WM2(T), with 16S rRNA gene sequence similarity of 93.4 %. Phenotypic, physiological and molecular genetic methods demonstrated that strain T-1-35(T) was distinct from its phylogenetic relatives (members of Clostridium rRNA cluster III) because it predominantly produced ethanol, iso-C13 : 0 3-OH was a major cellular fatty acid and it always exhibited pleomorphism. On the basis of the results of a polyphasic taxonomic study, strain T-1-35(T) is considered to represent a novel genus and species, Anaerobacterium chartisolvens gen. nov., sp. nov. The type strain of Anaerobacterium chartisolvens is T-1-35(T) ( = DSM 27016(T) = NBRC 109520(T)). In addition, from the results of our phylogenetic analysis and its phenotypic features, the species Bacteroides cellulosolvens Murray et al. 1984 is proposed to be reclassified

  8. Hydrogeology of the Chickasaw National Recreation Area, Murray County, Oklahoma

    USGS Publications Warehouse

    Hanson, Ronald L.; Cates, Steven W.

    1994-01-01

    The Travertine District (Park) of the Chickasaw National Recreation Area, operated and maintained by the National Park Service, is near the City of Sulphur in south-central Oklahoma. The Park was established in 1902 because of its unique hydrologic setting, which includes Rock Creek, Travertine Creek, numerous mineralized and freshwater springs, and a dense cover of riparian vegetation. Since the turn of the century several flowing artesian wells have been drilled within and adjacent to the Park. Discharge from many of these springs and the numbers of flowing wells have declined substantially during the past 86 years. To determine the cause of these declines, a better understanding of the hydrologic system must be obtained. The U.S. Geological Survey, in cooperation with the National Park Service, has appraised hydrologic information obtained for the Park from several studies conducted during 1902-87. The principal geologic units referred to in this report are the Arbuckle Group and the overlying Simpson Group. These rocks are of Upper Cambrian to Middle Ordovician age and are composed of dolomitic limestone, with some sandstones and shales in the Simpson Group. Surface geologic maps give a general understanding of the regional subsurface geology, but information about the subsurface geology within the Park is poor. The Simpson and Arbuckle aquifers are the principal aquifers in the study area. The two aquifers are not differentiated readily in some parts of the study area because of the similarity of the Simpson and Arbuckle rocks; thus, both water-bearing units are referred to frequently as the Arbuckle-Simpson aquifer. The aquifers are confined under the Park, but are unconfined east and south of the Park. Precipitation on the outcrop area of the Arbuckle aquifer northeast and east of the Park recharges the freshwater springs (Antelope and Buffalo Springs) near the east boundary of the Park. The source of water from mineralized springs located in the central part of the Park, and flowing wells within and north of the Park, is believed to be a mix of waters from rocks of the Arbuckle and Simpson Groups. The source of water from two highly mineralized springs, Bromide and Medicine, that ceased to flow in the early 1970?s is believed to be from the Simpson Group. Water-quality characteristics reflect the sources of ground water in the study area. The highly mineralized springs near the western end of the Park are a sodium chloride type with dissolved solids greater than 4,500 mg/L. The freshwater springs near the eastern end of the Park are a calcium bicarbonate type with total dissolved solids of less than 400 mg/L. Flow from the artesian wells has declined substantially during the past 86 years and the wells are estimated to currently discharge only about 10 percent of the total flow reported in 1939. The depletion is believed to be caused by a gradual lowering of the hydraulic head within the aquifer. The influence on the hydrologic system of local municipal and industrial pumping from the Arbuckle-Simpson aquifer is difficult to discern because the system is much more sensitive to precipitation than to pumpage. Ground-water levels and spring flows in this region respond rapidly to precipitation. The effects of withdrawals from the City of Sulphur and Oklahoma Gas and Electric Company power-plant water-well fields are not discernible at wells and springs. The hydrologic system may be influenced by pumping, particularly during extended dry periods of several years, but the impact of pumping on the system cannot be determined without further investigation.

  9. Geologic map of Chickasaw National Recreation Area, Murray County, Oklahoma

    USGS Publications Warehouse

    Blome, Charles D.; Lidke, David J.; Wahl, Ronald R.; Golab, James A.

    2013-01-01

    This 1:24,000-scale geologic map is a compilation of previous geologic maps and new geologic mapping of areas in and around Chickasaw National Recreation Area. The geologic map includes revisions of numerous unit contacts and faults and a number of previously “undifferentiated” rock units were subdivided in some areas. Numerous circular-shaped hills in and around Chickasaw National Recreation Area are probably the result of karst-related collapse and may represent the erosional remnants of large, exhumed sinkholes. Geospatial registration of existing, smaller scale (1:72,000- and 1:100,000-scale) geologic maps of the area and construction of an accurate Geographic Information System (GIS) database preceded 2 years of fieldwork wherein previously mapped geology (unit contacts and faults) was verified and new geologic mapping was carried out. The geologic map of Chickasaw National Recreation Area and this pamphlet include information pertaining to how the geologic units and structural features in the map area relate to the formation of the northern Arbuckle Mountains and its Arbuckle-Simpson aquifer. The development of an accurate geospatial GIS database and the use of a handheld computer in the field greatly increased both the accuracy and efficiency in producing the 1:24,000-scale geologic map.

  10. Characterization of Biocontrol Traits in Heterorhabditis floridensis: A Species with Broad Temperature Tolerance.

    PubMed

    Shapiro-Ilan, David I; Blackburn, Dana; Duncan, Larry; El-Borai, Fahiem E; Koppenhöfer, Heather; Tailliez, Patrick; Adams, Byron J

    2014-12-01

    Biological characteristics of two strains of the entomopathogenic nematode, Heterorhabditis floridensis (332 isolated in Florida and K22 isolated in Georgia) were described. The identity of the nematode's symbiotic bacteria was elucidated and found to be Photorhabdus luminescens subsp. luminescens. Beneficial traits pertinent to biocontrol (environmental tolerance and virulence) were characterized. The range of temperature tolerance in the H. floridensis strains was broad and showed a high level of heat tolerance. The H. floridensis strains caused higher mortality or infection in G. mellonella at 30°C and 35°C compared with S. riobrave (355), a strain widely known to be heat tolerant, and the H. floridensis strains were also capable of infecting at 17°C whereas S. riobrave (355) was not. However, at higher temperatures (37°C and 39°C), though H. floridensis readily infected G. mellonella, S. riobrave strains caused higher levels of mortality. Desiccation tolerance in H. floridensis was similar to Heterorhabditis indica (Hom1) and S. riobrave (355) and superior to S. feltiae (SN). H. bacteriophora (Oswego) and S. carpocapsae (All) exhibited higher desiccation tolerance than the H. floridensis strains. The virulence of H. floridensis to four insect pests (Aethina tumida, Conotrachelus nenuphar, Diaprepes abbreviatus, and Tenebrio molitor) was determined relative to seven other nematodes: H. bacteriophora (Oswego), H. indica (Hom1), S. carpocapsae (All), S. feltiae (SN), S. glaseri (4-8 and Vs strains), and S. riobrave (355). Virulence to A. tumida was similar among the H. floridensis strains and other nematodes except S. glaseri (Vs), S. feltiae, and S. riobrave failed to cause higher mortality than the control. Only H. bacteriophora, H. indica, S. feltiae, S. riobrave, and S. glaseri (4-8) caused higher mortality than the control in C. nenuphar. All nematodes were pathogenic to D. abbreviatus though S. glaseri (4-8) and S. riobrave (355) were the most virulent

  11. Variations on a Theme: Antennal Lobe Architecture across Coleoptera

    PubMed Central

    Kollmann, Martin; Schmidt, Rovenna; Heuer, Carsten M.

    2016-01-01

    Beetles comprise about 400,000 described species, nearly one third of all known animal species. The enormous success of the order Coleoptera is reflected by a rich diversity of lifestyles, behaviors, morphological, and physiological adaptions. All these evolutionary adaptions that have been driven by a variety of parameters over the last about 300 million years, make the Coleoptera an ideal field to study the evolution of the brain on the interface between the basic bauplan of the insect brain and the adaptions that occurred. In the current study we concentrated on the paired antennal lobes (AL), the part of the brain that is typically responsible for the first processing of olfactory information collected from olfactory sensilla on antenna and mouthparts. We analyzed 63 beetle species from 22 different families and thus provide an extensive comparison of principal neuroarchitecture of the AL. On the examined anatomical level, we found a broad diversity including AL containing a wide range of glomeruli numbers reaching from 50 to 150 glomeruli and several species with numerous small glomeruli, resembling the microglomerular design described in acridid grasshoppers and diving beetles, and substructures within the glomeruli that have to date only been described for the small hive beetle, Aethina tumida. A first comparison of the various anatomical features of the AL with available descriptions of lifestyle and behaviors did so far not reveal useful correlations. In summary, the current study provides a solid basis for further studies to unravel mechanisms that are basic to evolutionary adaptions of the insect olfactory system. PMID:27973569

  12. Hit-and-run trophallaxis of small hive beetles.

    PubMed

    Neumann, Peter; Naef, Jan; Crailsheim, Karl; Crewe, Robin M; Pirk, Christian W W

    2015-12-01

    Some parasites of social insects are able to exploit the exchange of food between nestmates via trophallaxis, because they are chemically disguised as nestmates. However, a few parasites succeed in trophallactic solicitation although they are attacked by workers. The underlying mechanisms are not well understood. The small hive beetle (=SHB), Aethina tumida, is such a parasite of honey bee, Apis mellifera, colonies and is able to induce trophallaxis. Here, we investigate whether SHB trophallactic solicitation is innate and affected by sex and experience. We quantified characteristics of the trophallactic solicitation in SHBs from laboratory-reared individuals that were either bee-naïve or had 5 days experience. The data clearly show that SHB trophallactic solicitation is innate and further suggest that it can be influenced by both experience and sex. Inexperienced SHB males begged more often than any of the other groups had longer breaks than their experienced counterparts and a longer soliciting duration than both experienced SHB males and females, suggesting that they start rather slowly and gain more from experience. Successful experienced females and males were not significantly different from each other in relation to successful trophallactic interactions, but had a significantly shorter soliciting duration compared to all other groups, except successful inexperienced females. Trophallactic solicitation success, feeding duration and begging duration were not significantly affected by either SHB sex or experience, supporting the notion that these behaviors are important for survival in host colonies. Overall, success seems to be governed by quality rather than quantity of interactions, thereby probably limiting both SHB energy investment and chance of injury (<1%). Trophallactic solicitation by SHBs is a singular example for an alternative strategy to exploit insect societies without requiring chemical disguise. Hit-and-run trophallaxis is an attractive test

  13. Cell division and endoreduplication play important roles in stem swelling of tuber mustard (Brassica juncea Coss. var. tumida Tsen et Lee).

    PubMed

    Shi, H; Wang, L L; Sun, L T; Dong, L L; Liu, B; Chen, L P

    2012-11-01

    We investigated spatio-temporal variations in cell division and the occurrence of endoreduplication in cells of tuber mustard stems during development. Cells in the stem had 8C nuclei (C represents DNA content of a two haploid genome), since it is an allotetraploid species derived from diploid Brassica rapa (AA) and B. nigra (BB), thus indicating the occurrence of endoreduplication. Additionally, we observed a dynamic change of cell ploidy in different regions of the swollen stems, with a decrease in 4C proportion in P4-1 and a sharp increase in 8C cells that became the dominant cell type (86.33% at most) in the inner pith cells. Furthermore, cDNAs of 14 cell cycle genes and four cell expansion genes were cloned and their spatial transcripts analysed in order to understand their roles in stem development. The expression of most cell cycle genes peaked in regions of the outer pith (P2 or P3), some genes regulating S/G2 and G2/M (BjCDKB1;2, BjCYCB1;1 and BjCYCB1;2) significantly decrease in P5 and P6, while G1/S regulators (BjE2Fa, BjE2Fb and BjE2Fc) showed a relative high expression level in the inner pith (P5) where cells were undergoing endoreduplication. Coincidentally, BjXTH1and BjXTH2 were exclusively expressed in the endoreduplicated cells. Our results suggest that cells of outer pith regions (P2 and P3) mainly divide for cell proliferation, while cells of the inner pith expand through endoreduplication. Endoreduplication could trigger expression of BjXTH1 and BjXTH2 and thus function in cell expansion of the pith tissue.

  14. Hydrology and Water Quality near Bromide Pavilion in Chickasaw National Recreation Area, Murray County, Oklahoma, 2000

    USGS Publications Warehouse

    Andrews, William J.; Burrough, Steven P.

    2002-01-01

    The Bromide Pavilion in Chickasaw National Recreation Area drew many thousands of people annually to drink the mineral-rich waters piped from nearby Bromide and Medicine Springs. Periodic detection of fecal coliform bacteria in water piped to the pavilion from the springs, low yields of the springs, or flooding by adjacent Rock Creek prompted National Park Service officials to discontinue piping of the springs to the pavilion in the 1970s. Park officials would like to resume piping mineralized spring water to the pavilion to restore it as a visitor attraction, but they are concerned about the ability of the springs to provide sufficient quantities of potable water. Pumping and sampling of Bromide and Medicine Springs and Rock Creek six times during 2000 indicate that these springs may not provide sufficient water for Bromide Pavilion to supply large numbers of visitors. A potential problem with piping water from Medicine Spring is the presence of an undercut, overhanging cliff composed of conglomerate, which may collapse. Evidence of intermittent inundation of the springs by Rock Creek and seepage of surface water into the spring vaults from the adjoining creek pose a threat of contamination of the springs. Escherichia coli, fecal coliform, and fecal streptococcal bacteria were detected in some samples from the springs, indicating possible fecal contamination. Cysts of Giardia lamblia and oocysts of Cryptosporidium parvum protozoa were not detected in the creek or the springs. Total culturable enteric viruses were detected in only one water sample taken from Rock Creek.

  15. Surveying Clay Mineral Diversity in the Murray Formation, Gale Crater, Mars

    NASA Technical Reports Server (NTRS)

    Bristow, T. F.; Blake, D. F.; Vaniman, D. T.; Chipera, S. J.; Rampe, E. B.; Grotzinger, J. P.; McAdam, A. C.; Ming, D. W.; Morrison, S. M.; Yen, A. S.; Morris, R. V.; Des Marais, D. J.

    2017-01-01

    One of the primary science goals of Mars Science Laboratory (MSL) is to investigate layered clay mineral-bearing deposits outcropping in the lower NW slopes of Aeolis Mons (Mt. Sharp) detected from orbit. Martian clay mineral-bearing layered rocks are of particular interest because they are potential markers of sedimentary deposits formed in habitable aqueous environments. The CheMin X-ray diffraction (XRD) instrument aboard MSL has documented clay minerals in various drill samples during its traverse of Gale Crater's floor and ascent of Mt. Sharp. Previously, the high concentrations of clay minerals (approximately 20 wt.%) detected in drill powders of mudstone (Sheepbed member) at Yellowknife Bay (YKB) allowed their detailed characterization. Drill powders recovered from lacustrine mudstones of the Sheepbed member at YKB contain smectite clay minerals. Based on the position of 02l reflections in XRD patterns, which serve as an indicator of octahedral occupancy, the smectites are Fe-bearing, trioctahedral species analogous to ferrian saponites from terrestrial deposits. The smectites are thought to have been formed through a process of isochemical aqueous alteration of detrital olivine close to the time of sediment deposition under anoxic to poorly oxidizing conditions. The clay minerals are key indicators that the lake waters were benign and habitable at the time. Clay minerals were detected at other locations during MSL's traverse, including samples from the Pahrump Hills, but lower abundances and overlapping peaks from crystalline phases in XRD patterns hamper in-depth analysis.

  16. The Challenges of Primary Sources, Collaboration, and the K-16 Elizabeth Murray Project

    ERIC Educational Resources Information Center

    Cleary, Patricia; Neumann, David

    2009-01-01

    In recent years, the use of primary sources in the history and social studies classroom has been increasingly promoted as a necessary and welcome practice, one designed to improve the quality of history education and to encourage student interest and engagement. Although some K-12 educators have been wary of adopting the use of primary sources,…

  17. The ovary structure, previtellogenic and vitellogenic stages in parthenogenetic species Dactylobiotus dispar (Murray, 1907) (Tardigrada: Eutardigrada).

    PubMed

    Poprawa, Izabela

    2005-10-01

    The reproductive system of Dactylobiotus dispar consists of the ovary and the oviduct that opens into the rectum. The sack-like ovary is filled with the developing oocytes, which are assisted by the trophocytes. In D. dispar, the mixed vitellogenesis takes place. One part of the yolk material is produced inside the oocyte (autosynthesis), the second part is absorbed by micropinocytosis while the third part is synthesized in the trophocytes and is transported to the oocytes through the cytoplasmatic bridges. Moreover, rRNA, lipids and mitochondria are transfered from the trophocytes to the oocytes. The histochemical researches show that the reserve material accumulated in the oocytes contains proteins, polysaccharides and lipids.

  18. Light and electron microscopic studies on the excretory system of Macrobiotus richtersi Murray, 1911 (Eutardigrada).

    PubMed

    Weglarska, B

    1980-01-01

    The excretory system of Macrobiotus richtersi consists of one dorsal and two lateral components and shows a high degree of structural complexity. In each of these a tricellular external lobe and a column can be distinguished, the two parts being connected distally. The surface of the lobe cells is increased by deep basal infoldings and fingerlike processes which form a labyrinth next to the basal lamina. Their cytoplasm contains numerous mitochondria, a well developed rough endoplasmic reticulum, dictyosomes, and granules in amounts depending on the physiological state of the animal. Excretory crystals occur in caveolae located in the lobe: between the fingershaped processes of the cell and in the space enclosed by the basal lamina on one side and the column on the other. The column faces an extracellular channel meandering along its whole length which is surrounded on the outside by a basal lamina. Morphologically the column is similar to the protonephridial channel of Rotifera. At the ultrastructural level, the cytoplasm of the column shows numerous mitochondria, rough endoplasmic reticulum, lysosomes, and a well developed Golgi apparatus. The lumen of the channel is coated by glycocalyx. At the base of the column several small cells form the proximal part of a duct that communicates with the gut. The morphology and ultrastructure of the excretory system of M. richtersi have been compared with similar a system in Isohypsibius megalonyx (Greven, 1979), and on these grounds a proposal is put forward to call the excretory organs of Tardigrada "nephridia" instead of "Malpighian tubules" .

  19. 76 FR 14407 - Exchange of Letters Between Dr. Murray M. Lumpkin, Deputy Commissioner, International Programs...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-16

    ... for Caseins, Caseinates, and Mixtures Thereof Exported From Ireland to the United States AGENCY: Food... mixtures thereof exported from Ireland to the United States. The mutual goals of FDA and DAFF in establishing certification requirements for caseins, caseinates, and mixtures thereof exported from Ireland...

  20. Learning in Place, Cultural Mapping and Sustainable Values on the Millawa Billa (Murray River)

    ERIC Educational Resources Information Center

    Heckenberg, Robyn

    2016-01-01

    This paper presents an Indigenous perspective on the significance of land, culture and Indigenous rights. The United Nations (UN) Declaration on the Rights of Indigenous Peoples promote the importance of traditional Indigenous societies, such as Aboriginal Australians. Participating in caring for country methods and having a close on-going…

  1. 33 CFR 110.72c - Lake Murray, S.C.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... foot pier of the Columbia Sailing Club, approximately latitude 34°03′51″ N., longitude 81°13′37″ W.; thence 167° to latitude 34°03′43.6″ N., longitude 81°13′39.2″ W.; thence easterly to latitude 34°03′45″...

  2. 33 CFR 110.72c - Lake Murray, S.C.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... foot pier of the Columbia Sailing Club, approximately latitude 34°03′51″ N., longitude 81°13′37″ W.; thence 167° to latitude 34°03′43.6″ N., longitude 81°13′39.2″ W.; thence easterly to latitude 34°03′45″...

  3. 33 CFR 110.72c - Lake Murray, S.C.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... foot pier of the Columbia Sailing Club, approximately latitude 34°03′51″ N., longitude 81°13′37″ W.; thence 167° to latitude 34°03′43.6″ N., longitude 81°13′39.2″ W.; thence easterly to latitude 34°03′45″...

  4. Risk assessment of pesticides and other stressors in bees: Principles, data gaps and perspectives from the European Food Safety Authority.

    PubMed

    Rortais, Agnès; Arnold, Gérard; Dorne, Jean-Lou; More, Simon J; Sperandio, Giorgio; Streissl, Franz; Szentes, Csaba; Verdonck, Frank

    2017-06-01

    Current approaches to risk assessment in bees do not take into account co-exposures from multiple stressors. The European Food Safety Authority (EFSA) is deploying resources and efforts to move towards a holistic risk assessment approach of multiple stressors in bees. This paper describes the general principles of pesticide risk assessment in bees, including recent developments at EFSA dealing with risk assessment of single and multiple pesticide residues and biological hazards. The EFSA Guidance Document on the risk assessment of plant protection products in bees highlights the need for the inclusion of an uncertainty analysis, other routes of exposures and multiple stressors such as chemical mixtures and biological agents. The EFSA risk assessment on the survival, spread and establishment of the small hive beetle, Aethina tumida, an invasive alien species, is provided with potential insights for other bee pests such as the Asian hornet, Vespa velutina. Furthermore, data gaps are identified at each step of the risk assessment, and recommendations are made for future research that could be supported under the framework of Horizon 2020. Finally, the recent work conducted at EFSA is presented, under the overarching MUST-B project ("EU efforts towards the development of a holistic approach for the risk assessment on MUltiple STressors in Bees") comprising a toolbox for harmonised data collection under field conditions and a mechanistic model to assess effects from pesticides and other stressors such as biological agents and beekeeping management practices, at the colony level and in a spatially complex landscape. Future perspectives at EFSA include the development of a data model to collate high quality data to calibrate and validate the model to be used as a regulatory tool. Finally, the evidence collected within the framework of MUST-B will support EFSA's activities on the development of a holistic approach to the risk assessment of multiple stressors in bees. In

  5. The structure and the formation of egg shells in the parthenogenetic species Dactylobiotus dispar Murray, 1907 (Tardigrada: Eutardigrada).

    PubMed

    Poprawa, Izabela

    2005-01-01

    The eggs of Dactylobiotus dispar, similar to other Tardigrada eggs, are covered with two shells: the vitelline envelope and the chorion. Ultrastructural studies have shown that the oocyte actively participates in the formation of both shells. The process of egg capsule formation begins at the midpoint of vitellogenesis. The chorion at first appears as isolated cones resulting from the exocytotic activity of the oocyte and the ovarian epithelium. Subsequently, connections between the cones are formed. Three layers can be distinguished in the completely developed chorion: (1) the inner layer of medium electron density; (2) the middle, labyrinthine layer; (3) the outer layer of medium electron density with cones (future conical processes). After chorion formation, a vitelline envelope is secreted by the oocyte. The Dactylobiotus dispar egg is covered with small, conical processes with hooked tips. The surface of the chorion is covered with a mesh-like network consisting of elongated interstices. The egg capsule has no micropylar opening.

  6. Learning to Be Drier in the Southern Murray-Darling Basin: Setting the Scene for This Research Volume

    ERIC Educational Resources Information Center

    Golding, Barry; Campbell, Coral

    2009-01-01

    In this article, the authors set the scene for this research volume. They sought to emphasize and broaden their interest and concern about their "Learning to be drier" theme in this edition to the 77 per cent of Australians who live within 50 km of the Australian coast, the majority of whom also live in major cities and urban complexes.…

  7. Spectral characteristics of iron-bearing phyllosilicates: Comparison to Orgueil (CI1), Murchison and Murray (CM2)

    USGS Publications Warehouse

    Calvin, W.M.; King, T.V.V.

    1997-01-01

    Phyllosilicate alteration minerals are commonly found in low petrologic types of carbonaceous chondrites. Previous spectral studies have examined Mg-bearing phyllosilicates with limited success in matching the spectral properties of CM and CI chondrites. Transmission electron microscope and other analytical techniques suggest that Fe-bearing clays are more abundant in CI and CM chondrites than magnesian varieties. Here, we present the results of an examination of the reflectance spectra of Fe-phyllosilicates, including serpentines and berthierines, of which the latter were formerly known as septechlorites. We have measured the diffuse reflectance spectra of powdered samples from 0.3 to 25 ??m. We find that these minerals provide a better spectral match to many of the features seen in CI and CM chondrites, and simple linear combinations of the spectra of both Fe- and Mg-phyllosilicates closely approximate the spectra of CM and CI chondrites.

  8. Ten Years of Growing Season Water, Energy and Carbon Exchange From an Oil sands Reclamation Site, Fort McMurray, Alberta

    NASA Astrophysics Data System (ADS)

    Carey, S. K.; Drewitt, G. B.

    2013-12-01

    The oil sands mining industry in Canada has made a commitment to restore disturbed areas to an equivalent capability to that which existed prior to mining. Certification requires successful reclamation, which can in part be evaluated through long-term ecosystem studies. A reclamation site, informally named South Bison Hill (SBH) has had growing season water, energy and carbon fluxes measured via the eddy covariance method for 10 years since establishment. SBH was capped with a 0.2 m peat-glacial till mixture overlying 0.8 m of reworked glacial till soil. The site was seeded to barley cultivar (Hordeum spp.) in the summer of 2002 and later planted to white spruce (Picea glauca) and aspen (Populus spp.) in the summer/fall of 2004. Since 2007, the major species atop SBH has been aspen, and by 2012 was on average ~ 4 m in height. Climatically, mean growing temperature did not vary greatly, yet there was considerable difference in rainfall among years, with 2012 having the greatest rainfall at 321 mm, whereas 2011 and 2007 were notably dry at 180 and 178 mm, respectively. The partitioning of energy varied among years, but the fraction of latent heat as a portion of net radiation increased with the establishment of aspen, along with concomitant increases in LAI and growing season net ecosystem exchange (NEE). Peat growing season ET was smallest in 2004 at 2.3 mm/d and greatest in 2010 at ~3.9 mm/d. ET rates showed a marked increase in 2008 corresponding with the increase in LAI attributed to the aspen cover. Since the establishment of a surface cover and vegetation in 2003, SBH has been a growing season sink for carbon dioxide. Values of NEE follow similar patterns to those of ET, with values gradually becoming more negative (greater carbon uptake) as the aspen forest established. Comparison with other disturbed and undisturbed boreal aspen stands show that SBH exhibits similar water, energy and carbon flux patterns during the growing season.

  9. Modelling Surface Water Dynamics (SWD) on Large River Basin Scale from Space: A Case Study for the Murray-Darling Basin (MDB) of Australia

    NASA Astrophysics Data System (ADS)

    Heimhuber, V.; Tulbure, M. G.; Broich, M.

    2015-12-01

    Globally, increasing demands on water resources along with climate variability and change have led to alarming declines and deterioration of terrestrial surface water resources. The usage of earth-observation data and techniques for modeling SWD and its drivers represents a promising approach for sustainable management and restoration of surface water resources across broad geographic regions. The main objective of this research was to model SWD with a focus on floods, observed in 25 years of Landsat imagery (1986 - 2011), across a large and highly regulated river basin, the MDB in Australia. SWD were modelled as a function of river flow and spatially explicit time-series data on soil moisture (Climate Change Initiative active passive microwave), evapotranspiration (Australian Water Resources Assessment land surface model) and rainfall (gauge-based). To enable a consistent modeling approach within the complex hydrological structure of the river basin, a unique spatial modeling framework was developed based on a fully directed and connected stream network, a categorization of the basin into floodplain and non-floodplain area and a regular grid of 10 by 10 km cells. Based on this framework, SWD on local floodplain units were successfully related to flow data from connected gauges by quantifying the lag time for each cell. Dynamic regression models of SWD were fitted locally for floodplains in each grid cell, with an average adjusted r2 above 0.7. Validation against 10 years of test data that was left out for model fitting showed that the models can predict the test data with an average r2 of 0.7, which makes them suitable for improving the ongoing management and allocation of environmental flows in the MDB. The models also revealed the relative importance of local climate conditions for SWD, with increased importance of soil moisture, evapotranspiration and rainfall in arid regions, in proximity to headwater catchments and on slow-draining floodplains.

  10. National Program for Inspection of Non-Federal Dams. Murray Printing Company Dam (MA 00130), Merrimack River Basin, Westford, Massachusetts. Phase I Inspection Report.

    DTIC Science & Technology

    1979-04-01

    the dimensions of the dam and evaluate its structural stability, and investigate methods for increasing project discharge and the feasibility of... methods for increasing project discharge, including further study of flow diversion to Nashoba Brook, and the feasibility of reconstructing the outlet on...4 z (n r -40$ r 13 1 $~4 4 0 2.- ufa ~04 r4 (a 04: 0M u f4J *f-4 4 ~Z 41 t . 0 9 - 4 1 r. H r. 9:0 H (15110 4 > E4 U 4-) rq 4 4 Hp. 0) -4 ai0 9 c 0

  11. Universities, Technology and Academic Work: A Reconsideration of the Murray Committee on Australian Universities (1957) in the light of Dawkins (1987-1988).

    ERIC Educational Resources Information Center

    O'Brien, John

    1990-01-01

    The paper looks at changes in Australian higher education initiated by the government minister J.S. Dawkins, in the light of a 1957 committee which is generally credited with accelerating the postwar expansion of higher education in Australia. The issue of the primary functions of universities is discussed. (DB)

  12. To designate the facility of the United States Postal Service located at 4865 Tallmadge Road in Rootstown, Ohio, as the "Marine Sgt. Jeremy E. Murray Post Office".

    THOMAS, 112th Congress

    Rep. Ryan, Tim [D-OH-17

    2011-02-15

    02/18/2011 Referred to the Subcommittee on Federal Workforce, U.S. Postal Service, and Labor Policy . (All Actions) Notes: For further action, see S.349, which became Public Law 112-22 on 6/29/2011. Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  13. 75 FR 80846 - Agency Information Collection Activities: Proposed Collection; Comments Requested

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-23

    ... hours associated with this collection. If additional information is required contact: Lynn Murray...: December 20, 2010. Lynn Murray, Department Clearance Officer, PRA, United States Department of...

  14. 75 FR 79022 - Agency Information Collection Activities: Proposed Collection; Comments Requested

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-17

    ... is required contact: Lynn Murray, Department Clearance Officer, United States Department of Justice..., NE., Washington, DC 20530. Dated: December 14, 2010. Lynn Murray, Department Clearance Officer,...

  15. 75 FR 79021 - Agency Information Collection Activities: Proposed Collection; Comments Requested

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-17

    ...: Lynn Murray, Department Clearance Officer, Policy and Planning Staff, Justice Management Division..., DC 20530. Dated: December 14, 2010. Lynn Murray, Department Clearance Officer, PRA, United...

  16. 77 FR 10556 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-22

    ... annually. If additional information is required, contact: Jerri Murray, Department Clearance Officer... Constitution Square, 145 N Street NE., Room 2E-508, Washington, DC 20530. Jerri Murray, Department...

  17. 75 FR 80848 - Agency Information Collection Activities: Proposed Collection; Comments Requested

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-23

    ... hours associated with this collection. If additional information is required contact: Lynn Murray...: December 20, 2010. Lynn Murray, Department Clearance Officer, PRA, United States Department of...

  18. 75 FR 80844 - Agency Information Collection Activities: Proposed Collection; Comments Requested

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-23

    ... burden hours associated with this collection. If additional information is required contact: Lynn Murray...: December 20, 2010. Lynn Murray, Department Clearance Officer, PRA, United States Department of...

  19. 77 FR 47117 - Agency Information Collection Activities: Proposed Collection; Comments Requested Revised...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-07

    ... this collection annually. If additional information is required contact: Jerri Murray, Department..., 2012. Jerri Murray, Department Clearance Officer, United States Department of Justice. BILLING...

  20. 78 FR 59722 - Agency Information Collection Activities: Proposed Collection; Comments Requested; Application...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-27

    ... additional information is required contact: Jerri Murray, Department Clearance Officer, Policy and Planning...., Room 3W-1407B, Washington, DC 20530. Dated: September 24, 2013. Jerri Murray, Department...

  1. 78 FR 36579 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Requisition...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-18

    ... Murray, Department Clearance Officer, Policy and Planning Staff, Justice Management Division, Department... 12, 2013. Jerri Murray, Department Clearance Officer for PRA, U.S. Department of Justice....

  2. 78 FR 61868 - Agency Information Collection Activities; Proposed Collection; Comments Requested; Extension of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-04

    ... minutes per hour = 61 hours. If additional information is required, please contact Jerri Murray.... Jerri Murray, Department Clearance Officer for PRA, United States Department of Justice. [FR Doc....

  3. 75 FR 79023 - Agency Information Collection Activities: Proposed Collection; Comments Requested

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-17

    ... associated with this collection. If additional information is required contact: Lynn Murray, Department..., 2010. Lynn Murray, Department Clearance Officer, PRA, United States Department of Justice. BILLING...

  4. 78 FR 42974 - Agency Information Collection Activities; Proposed Renewal of Previously Approved Collection...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-18

    ..., contact Jerri Murray, Department Clearance Officer, United States Department of Justice, Justice..., Washington, DC 20530. Dated: July 15, 2013. Jerri Murray, Department Clearance Officer, PRA, U.S....

  5. 75 FR 80847 - Agency Information Collection Activities: Proposed Collection; Comments Requested

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-23

    ... hours associated with this collection. If additional information is required contact: Lynn Murray...: December 20, 2010. Lynn Murray, Department Clearance Officer, PRA, United States Department of...

  6. 76 FR 61383 - Agency Information Collection Activities: Revision of a Previously Approved Collection, With...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-04

    ... required contact: Jerri Murray, Department Clearance Officer, United States Department of Justice, Justice..., Washington, DC 20530. Jerri Murray, Department Clearance Officer, PRA, U.S. Department of Justice....

  7. 77 FR 70469 - Agency Information Collection Activities: Proposed Collection; Comments Requested; Employee...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-26

    ... Murray, Department Clearance Officer, Policy and Planning Staff, Justice Management Division, Department...: November 20, 2012. Jerri Murray, Department Clearance Officer for PRA, U.S. Department of Justice....

  8. 78 FR 36577 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Request for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-18

    ... this collection annually. If additional information is required, contact: Jerri Murray, Department..., 2013. Jerri Murray, Department Clearance Officer for PRA, United States Department of Justice....

  9. 78 FR 36582 - Agency Information Collection Activities; Proposed Collection; Comments Requested; Extension With...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-18

    ...: Jerri Murray, Department Clearance Officer, Policy and Planning Staff, Justice Management Division...: June 12, 2013. Jerri Murray, Department Clearance Officer for PRA, U.S. Department of Justice....

  10. 77 FR 10558 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Request for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-22

    ... information is required contact: Jerri Murray, Department Clearance Officer, United States Department of...., Room 2E-508, Washington, DC 20530. Jerri Murray, Department Clearance Officer, PRA, United...

  11. 77 FR 10557 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-22

    ... annually. If additional information is required, contact: Jerri Murray, Department Clearance Officer... Constitution Square, 145 N Street NE., Room 2E-508, Washington, DC 20530. Jerri Murray, Department...

  12. Computational Evaluation of the Feasibility of Nitrating Precursors to C12N12O12

    DTIC Science & Technology

    1994-10-20

    efforts to nitrate 3. 4 References 1. P. Sjoberg, J. S. Murray, T. Brinck and P. Politzer, Can. J. Chem., 68, 1440 (1990). 2. T. Brinck , J. S. Murray...4. T. Brinck , J. S. Murray and P. Politzer, J. Org. Chem., 56, 5012 (1991). 5. J. S. Murray, T. Brinck and P. Politzer, J. Mol. Struct. (Theochem

  13. Kodamaea ohmeri (Ascomycota: Saccharomycotina) presence in commercial Bombus impatiens Cresson and feral Bombus pensylvanicus DeGeer (Hymenoptera: Apidae) colonies

    Technology Transfer Automated Retrieval System (TEKTRAN)

    In this study, eight commercial and three feral bumble bee (Bombus impatiens Cresson and Bombus pensylvanicus DeGeer respectively, Hymenoptera: Apidae) colonies were tested for the presence of Kodamaea ohmeri (Ascomycota: Saccharomycotina), a yeast known to attract small hive beetles (SHB) (Aethina ...

  14. Computational Studies of Energetic Nitramines

    DTIC Science & Technology

    1991-09-11

    P. Sjoberg, J. S. Murray, T. Brinck , and P. Politzer, Can. J. Chem., 68, 1440 (1990). 34. J. S. Murray, P. Lane, T. Brinck , P. Politzer and P...S. Murray, Trans Amer. Cryst. Assoc. 26, in press. 44. J. S. Murray, T. Brinck , M. E. Grice and P. Politzer, J. Mol. Struct. (Theochem), in press...28 45. J. S. Murray, T. Brinck and P. Politzer, J. Mol. Struct. (Theochem), in press. 46. J. M. Seminario, J. S. Murray and P. Politzer, in The

  15. Peppermint oil overdose

    MedlinePlus

    ... PA: Elsevier Saunders; 2007:chap 101. Murray MT. Mentha piperita (peppermint). In: Pizzorno JE, Murray MT, eds. ... B. Final report on the safety assessment of mentha piperita (peppermint) oil, mentha piperita (peppermint) leaf extract, ...

  16. Clubbing of the fingers or toes

    MedlinePlus

    ... Clubbing Images Clubbing Clubbed fingers References Davis JL, Murray JF. History and physical examinations. In: Broaddus VC, Mason RJ, Ernst MD, et al. Murray & Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, ...

  17. 77 FR 3284 - Agency Information Collection Activities: Proposed Collection; Comments Requested: Report of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-23

    ... with this collection. If additional information is required contact: Jerri Murray, Department Clearance... Square, Room 2E-508, 145 N Street NE., Washington, DC 20530. Jerri Murray, Department Clearance...

  18. 78 FR 59720 - Agency Information Collection Activities: Proposed Collection; Comments Requested; Training...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-27

    ... collection. If additional information is required contact: Jerri Murray, Department Clearance Officer, Policy... Street NE., Room 3W-1407B, Washington, DC 20530. Dated: September 24, 2013. Jerri Murray,...

  19. 78 FR 36576 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-18

    ... information is required, contact: Jerri Murray, Department Clearance Officer, United States Department of...., Room 3W-1407B, Washington, DC 20530. Dated: June 4, 2013. Jerri Murray, Department Clearance...

  20. 78 FR 36578 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-18

    ... information is required, contact: Jerri Murray, Department Clearance Officer, United States Department of...., Room 3W-1407B, Washington, DC 20530. Dated: June 12, 2013. Jerri Murray, Department Clearance...

  1. Tryptophan

    MedlinePlus

    Murray MT. 5-Hydroxytryptophan. In: Pizzorno JE, Murray MT, eds. Textbook of Natural Medicine. 4th ed. St. Louis, MO: Elsevier Churchill Livingstone; 2013:chap 98. United States Department of Health and ...

  2. Sputum direct fluorescent antibody (DFA)

    MedlinePlus

    ... VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 17. Murray PR. The clinician and the microbiology laboratory. In: ...

  3. 78 FR 48718 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Application...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-09

    .... If additional information is required contact: Jerri Murray, Department Clearance Officer, Policy and... NE., Room 3W-1407B, Washington, DC 20530. Dated: August 6, 2013. Jerri Murray, Department...

  4. 78 FR 75375 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Application...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-11

    ... collection. If additional information is required contact: Jerri Murray, Department Clearance Officer, Policy... Street NE., Room 3W-1407B, Washington, DC 20530. Dated: December 5, 2013. Jerri Murray,...

  5. 77 FR 14829 - Agency Information Collection Activities: Extension of a Currently Approved Collection; Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-13

    ... information is required contact: Jerri Murray, Department Clearance Officer, United States Department of...., Room 2E-508, Washington, DC 20530. Jerri Murray, Department Clearance Officer, PRA, U.S. Department...

  6. 77 FR 3282 - Agency Information Collection Activities: Proposed Collection; Comments Requested: Federal Coal...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-23

    ... associated with this collection, in total. If additional information is required contact: Jerri Murray... Planning Staff, 145 N Street NE., Room 2E-508, Washington, DC 20530. Jerri Murray, Department...

  7. Roll Damping Characterisation Program: User Guide

    DTIC Science & Technology

    2014-06-01

    sallying test. The Defence Science and Technology Organisation (DSTO) have developed a software-based tool called the Roll Damping Characterisation...Murray Riding Maritime Division Murray obtained a Bachelor of Science (Honours) Degree from the

  8. 76 FR 37402 - Application of Cargo Preference Requirements To Maritime Loan Guarantee Program

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-27

    ... INFORMATION CONTACT: Murray A. Bloom, Office of Chief Counsel, Maritime Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590. Telephone: 202-366-5164; or e-mail Murray.Bloom@dot.gov . Copies of...

  9. 77 FR 69562 - Drawbridge Operation Regulation; Thea Foss Waterway Previously Known as City Waterway, Tacoma, WA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-20

    ... operating schedule that governs the Murray Morgan Bridge, also known as the South 11th Street Bridge, across... the Murray Morgan Bridge. This temporary deviation will test three separate changes requested by the... of the unique features of the Murray Morgan Bridge is its height above the waterway providing 60...

  10. 77 FR 69576 - Drawbridge Operation Regulation; Thea Foss Waterway Previously Known as City Waterway, Tacoma, WA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-20

    .... SUMMARY: The Coast Guard proposes to modify the operating schedule that governs the Murray Morgan Bridge... which governs the operating schedule of the Murray Morgan Bridge. This proposed change will allow the... regulation are being proposed for the Murray Morgan Bridge. The first proposed amendment would require...

  11. 78 FR 33971 - Drawbridge Operation Regulation; City Waterway Also Known as Thea Foss Waterway, Tacoma, WA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-06

    ... South 11th Street (``Murray Morgan'') Bridge across the City Waterway also known as the ] Thea Foss...). This NPRM proposed three changes to the operating schedule of the Murray Morgan Bridge, also known as... period. One of the unique features of the Murray Morgan Bridge is its height above the waterway...

  12. 77 FR 32655 - DHS Data Privacy and Integrity Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-01

    ... Security, 245 Murray Lane SW., Mail Stop 0655, Washington, DC 20528. Instructions: All submissions must... Officer, DHS Data Privacy and Integrity Advisory Committee, Department of Homeland Security, 245 Murray... Officer and Shannon Ballard, Designated Federal Officer, 245 Murray Lane SW., Mail Stop 0655,...

  13. 78 FR 60317 - Agency Information Collection Activities: Proposed Collection; Comments Requested: Special Agent...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-01

    ... information, please contact Danielle Murray, Human Resources Operations Division, 99 New York Ave. NE...: Jerri Murray, Department Clearance Officer, Policy and Planning Staff, Justice Management Division...: September 25, 2013. Jerri Murray, Department Clearance Officer, PRA, U.S. Department of Justice....

  14. 77 FR 66714 - Drawbridge Operation Regulation; Columbia River, Vancouver, WA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-07

    ... issued a temporary deviation from the operating schedule that governs the Murray Morgan Bridge, also.... SUPPLEMENTARY INFORMATION: The City of Tacoma has requested to place the Murray Morgan Bridge (South 11th Street... major rehabilitation project on the bridge. The Murray Morgan Bridge crosses Thea Foss...

  15. The New Moral Darwinism

    ERIC Educational Resources Information Center

    Rury, John L.

    1986-01-01

    Reviews "Losing Ground: American Social Policy, 1950-1980" by Charles Murray. Murray believes federal social welfare programs sap the moral fiber of poor Americans by eliminating a negative incentive for them to work at low paying jobs. Criticizes Murray's position, citing the importance of positive as well as negative incentives for…

  16. Crow Ressurection: The Future of Airborne Electronic Attack

    DTIC Science & Technology

    2013-06-01

    28 John R. Murray, Project Corona Harvest End-of-Tour Report (1971), 5. 29 Werrell, Archie to SAM: A Short...31 Werrell, Archie to SAM: A Short Operational History of Ground-Based Air Defense, 135. 32 Murray, Project Corona ...target envelope of the SAM threat. 39 Murray, Project Corona Harvest End-of-Tour Report

  17. Computer-Assisted Evaluation and Design of Phase Transfer Catalysts for Trinitroazetidine and Trinitrotoluene Syntheses

    DTIC Science & Technology

    1993-02-26

    7968 (1987). 16. P. Sjoberg, J. S. Murray, T. Brinck , P. Evans and P. Politzer, J. Mol. Graphics, B, 81 (1990). 17. J.S. Murray, M. E. Grice, P...Politzer and M. C. Etter, Molecular Engineering 1,75 (1991). 18. T. Brinck , J. S. Murray and Peter Politzer, Int. J. of Quantum Chem., Quantum Biol. Symp. 19...57 (1992). 19. P. Politzer, J. S. Murray, P. Lane and T. Brinck , J. Phys. Chem. in press. 20. T. Brinck , J. S. Murray and P. Politzer, Molecular

  18. Amphipoda (crustacea) from Palau, Micronesia: families Dexaminidae, Eusiridae, Hyalidae, Ischyroceridae, Leucothoidae and Lysianassidae.

    PubMed

    Myers, A A

    2013-10-31

    Thirteen species of amphipod in the families Dexaminidae (1), Eusiridae (1), Hyalidae (1), Ischyroceridae (1), Leucothoidae (8) and Lysianassidae (1) are recorded from Palau in Micronesia. Of these, Ventojassa palauensis sp. nov., Leucothoe beobeldabensis sp.nov., L. pseudepidemos sp. nov., L. serratissima sp. nov., L. tumida sp. nov., L. whiteae sp. nov and Paranamixis dentidactylus sp. nov. are new to science and are described and figured.

  19. The MAL: A Malware Analysis Lexicon

    DTIC Science & Technology

    2013-02-01

    fundamental principles that would make it possible to adopt a more scientific approach” [MITRE 2010]. The first JASON program report concluded that...of them for inclusion in the lexicon. In her book Lost in the Web of Words [Murray 1977], K.M. Elisabeth Murray recounts the biography of her...grandfather, James Murray, and his heroic, Victorian project to build the first edition of the Oxford English Dictionary . He recruited a network of

  20. Hybrid Warfare: A Military Revolution or Revolution in Military Affairs?

    DTIC Science & Technology

    2012-12-14

    4MacGregor Knox and Williamson Murray, eds., The Dynamics of Military Revolution 1300-2050 (Cambridge: Cambridge... Dynamics of Military Revolution 1300-2050.12 A case study helps compare the extrapolation of the analysis and synthesis of their writings on MR to...affairs as defined by Knox and Murray in their book The Dynamics of Military Revolution, 1300-2050. 37 Professors Knox and Murray, provide a conceptual

  1. Molecular Surface Electrostatic Potentials in the Analysis of Non- Hydrogen-Bonding Noncovalent Interactions

    DTIC Science & Technology

    1993-12-27

    preferences (e.g., Brinck , et al., 1993; Kollman, et al., 1975; Leroy, et al., 1976) as well as accepting and donating tendencies (Murray and Politzer, 1991...halogenated methanes ( Brinck , et al., 1992); (b) substituted aromatics, (c) s-tetrazine (Politzer, et al., 1992) and (d) 1,3- bisphenylurea (Murray, et al...and Liquori, A. M. (1956) Acta Cryst., 9, 510. Blackstock, S. C., Lorand, J. P. and Kochi, J. K. (1987) J. Org. Chem., 52, 1451. Brinck , T., Murray, J

  2. Living in the Senses and Learning with Love--John Macmurray's Philosophy of Embodied Emotion

    ERIC Educational Resources Information Center

    MacAllister, James; Thorburn, Malcolm

    2014-01-01

    In this article we analyse the central role that the body plays in John MacMurray's account of learning to be human. As with Merleau-Ponty, MacMurray rejected mind-body dualisms and argued for the need to understand what it means to be a person. Through our analysis we highlight the key principles that characterize MacMurray's philosophy…

  3. Effects Based Operations: Applying Network Centric Warfare in Peace, Crisis, and War

    DTIC Science & Technology

    2003-01-01

    The Minute Men. Washington DC; Brassey’s. 1989. Gell - Mann , Murray . “The Simple and the Complex.” David S. Alberts and Thomas J, Czerwinski...state. 44Murray Gell - Mann , “The Simple and the Complex,” in David S. Alberts and Thomas J, Czerwinski. Complexity, Global Politics, and National...the fruit of a submarine campaign that sank most of the irreplaceable Japanese merchant marine. 37Williamson Murray writes, “We now know that these

  4. Systemic Operational Design: An Introduction

    DTIC Science & Technology

    2005-05-26

    the observer or the agent. Systems adapt over time to try to take advantage of the changing environment. Nobel Laureate Murray Gell - Mann outlined...less likely to result in a system so developing as to render its opponents useless. 100 Murray Gell - Mann “The Simple and the Complex,” (Edited by...Air Power Studies Monograph, Maxwell Air Force Base, Alabama, February 1995. Gell - Mann , Murray . “Simple and the Complex.” Edited by David S. Alberts

  5. Support of U.S. Army Special Forces in Expeditionary Warfare

    DTIC Science & Technology

    2008-05-22

    War College, ed. Williamson Murray (Carlisle, PA: Publications and Production Office, July ZOO I ),83, htlp:l!w\\\\lW.strategicstudiesinstitute.army... Murray (Carlisle, PA: Publications and Production Office, July 200 I), 107, hup://www.SlraJegicsllldiesinstilUte.armv.mil/pllbs/displav.cfm’!pllblD-256...fight the last war more effectively. The more dangerous reality, according to Williamson Murray , is that "military organizations fail to study past

  6. 77 FR 5844 - Agency Information Collection Activities: Proposed Collection; Comments Requested: Identification...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-06

    ... effectively traced. All licensed importers are required to identify by marking all explosive materials they... collection. If additional information is required contact: Jerri Murray, Department Clearance Officer,...

  7. Evaluation of the Effectiveness of the Defense Systems Acquisition Review Council (DSARC). Volume I. Technical Report with Appendices A and B.

    DTIC Science & Technology

    1983-04-04

    Roland 11 Perry Nelson* Hacker Murray 6/79 NAVSTAR 11 Dineen’ Shorey’ Hessler’ Murray 11/79 Copperhead 11 LaBerge * Pinie Wacker Murray 1/SO FYS III... LaBerge ’ Danzig’ Uarshman’ Christie’* 10/80 FVS PR LaBerge ’ Danzig* Bting Cua 6/82 LAMPS III Wade* Leach’ Heth h % Not a principal. "no appointee, actg...to illustrate the situation: FVS Program Review 1/80 LaBerge *Danzig* Harshman*Christie* Program Review 10/80 LaBerge *Danzig* Borsting Murray TRIDENT

  8. 75 FR 65391 - Minnesota Disaster #MN-00028

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-22

    ... Counties: Blue Earth, Cottonwood, Dodge, Faribault, Freeborn, Goodhue, Jackson, Lincoln, Lyon, Martin, Mower, Murray, Olmsted, Pipestone, Rice, Rock, Steele, Wabasha, Waseca, Watonwan, Winona. The...

  9. 75 FR 65501 - Minnesota; Major Disaster and Related Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-25

    ..., Martin, Mower, Murray, Olmsted, Pipestone, Rice, Rock, Steele, Wabasha, Waseca, Watonwan, and Winona Counties for Public Assistance. All counties within the State of Minnesota are eligible to apply...

  10. 76 FR 66084 - Agency Information Collection Activities; Proposed Collection, Comments Requested: Application...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-25

    ... technological collection techniques or other forms of information technology, e.g., permitting electronic..., NE., Suite 2E-508, Washington, DC 20530. Jerri Murray, Department Clearance Officer, PRA,...

  11. Why Straus's "Reanalysis" of physical tactics used by female partners is wrong: a response to "Addressing violence by female partners is vital to prevent or stop violence against women: evidence from the multisite batterer intervention evaluation," by Murray Straus, Violence Against Women, 20, 889-899.

    PubMed

    Gondolf, Edward W

    2014-12-01

    This article refutes Straus's reinterpretation of our study, "Physical Tactics of Female Partners Against Male Batterer Program Participants," drawing on our extended follow-up of batterer program participants and their partners in four cities (Gondolf, 2002). Straus claims that the rate of women's violence in the sample is "high" and asserts the need to address women's violence to reduce the men's violence, which is the opposite of our findings and interpretation. We contend that our focus on the men and women who both used tactics in the total sample addresses the research question. We elaborate why our regression analyses to "explain" the women's violence are sound, despite Straus's unsubstantiated speculations. We argue further that the evidence points to women's "violent resistance" against severe, repeated violence, and that those cases do not fit the "both victim" dyad type that Straus promotes. Moreover, they are inappropriate for couples counseling. Finally, we revisit the limitations of the Conflict Tactics Scales (CTS) as a sufficient measure of the women's experience of male violence and raise concern about the implications of Straus's claims.

  12. The Joy of No Sex

    ERIC Educational Resources Information Center

    Wasley, Paula

    2007-01-01

    This article reports on Justin F. Murray and Sarah M. Kinsella, the founders of a Harvard University student group called True Love Revolution that promotes the practical benefits of sexual abstinence until marriage and how Murray and Kinsella look forward to living the message after graduation. These "true love" revolutionaries cast…

  13. 77 FR 73651 - Cascade Energy Storage, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-11

    ...) Seattle City Light's existing 230-kV transmission line, or (ii) Bonneville Power Administration's (BPA) existing Custer-Monroe 500-kV line, or (iii) BPA existing Murray substation, or (iv) a new 4.5-mile- long... and then to the BPA Murray substation; and (9) appurtenant facilities. The estimated annual...

  14. Hyperactivity and sugar

    MedlinePlus

    ... Saunders; 2012:chap 6. Lyon M, Murray MT. Attention deficit hyperactivity disorder. In: Pizzorno JE, Murray MT, eds. Textbook of ... A.M. Editorial team. Related MedlinePlus Health Topics Attention Deficit Hyperactivity Disorder Carbohydrates Browse the Encyclopedia A.D.A.M., ...

  15. Comparative Computational Analysis of Some Nitramine and Difluoramine Structures, Dissociation Energies and Heats of Formation

    DTIC Science & Technology

    1994-11-03

    Chemical Data, (Plenum Press, New York, 1988) 6. C. Hansch, A. Leo and R. W. Taft, Chem. Rev., 91 (1991) 165. 7. P. Sjoberg, J. S. Murray, T. Brinck and P...Politzer, Can. J. Chem., 68 (1990) 1440. 8. M. Haeberlein, J. S. Murray, T. Brinck and P. Politzer, Can. J. Chem., 70 (1992) 2209. 9. P. Politzer

  16. 40 CFR 81.337 - Oklahoma.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... County Latimer County Love County Marshall County McIntosh County Murray County Okfuskee County Pittsburg... County Coal County Garvin County Haskell County Hughes County Johnston County Latimer County Love County... Johnston County Latimer County Love County Marshall County McIntosh County Murray County Okfuskee...

  17. Do We Need Another Hero? Year 8 Get to Grips with the Heroic Myth of the Defence of Rorke's Drift in 1879

    ERIC Educational Resources Information Center

    Murray, Mike

    2013-01-01

    Mike Murray shares a lesson sequence in which his students examined changing interpretations of the Battle of Rorke's Drift in 1879. Building on earlier work on teaching interpretations across an extended chronological period and the work of Wheeley et al on Rorke's Drift in particular, Murray develops new emphases, fresh ways in to the puzzle and…

  18. Graduate Research Capabilities: A New Agenda for Research Supervisors

    ERIC Educational Resources Information Center

    Hill, Geof W.; Walsh, Shari P.

    2010-01-01

    There has been a conversation about university graduate employability within the Higher Education literature for some time (Cryer, 1997; Barrie, 2004, 2006, 2007; Murray, 2000; McAlpine, 2006). Within this, and often under the banner of questioning the relevance of the PhD (Murray, 2000), there have been discussions about the employability of…

  19. The Role of Single Talker Acoustic Variation in Early Word Learning

    ERIC Educational Resources Information Center

    Galle, Marcus E.; Apfelbaum, Keith S.; McMurray, Bob

    2015-01-01

    Recent work has demonstrated that the addition of multiple talkers during habituation improves 14-month-olds' performance in the switch task (Rost & McMurray, 2009). While the authors suggest that this boost in performance is due to the increase in acoustic variability (Rost & McMurray, 2010), it is also possible that there is…

  20. Cultural Resource Investigation of the Grand Forks/East Grand Forks Urban Study and the East Grand Forks Flood Control Project,

    DTIC Science & Technology

    1981-04-01

    Proposed Absorption Bed Site at the City of Avoca , Mu~rray County, Minnesota; Toltz, King, DuvUal, Anderson and Associates, Inc.; Archaeological Field...Archaeological Reconnaissance Survey of a Proposed Absorption Bed Site at the City of Avoca , Murray County, Minnesota; Toltz, King, Duvall, Anderson and

  1. Oxygen therapy - infants

    MedlinePlus

    ... that can change the shape of the nose. Mechanical ventilators have a number of risks. Talk to ... MacIntyre NR. Principles of mechanical ventilation. In: Mason RJ, Murray JF, Broaddus VC, et al., eds. Murray and Nadel's Textbook of Respiratory Medicine . 5th ed. ...

  2. Sports Injuries in Youth: Surveillance Strategies. Proceedings of a Conference at the National Institutes of Health (Bethesda, MD, April 8-9, 1991).

    ERIC Educational Resources Information Center

    Centers for Disease Control (DHHS/PHS), Atlanta, GA.

    This conference was convened to develop guidelines for programs to monitor the rates and costs of youth sports injuries. Following the Preface (L. E. Shulman), Introduction (D. G. Murray), and Summary (D. G. Murray), "Subjects for Further Research or Implementation" are listed. The 19 papers presented at the conference were: (1)…

  3. Success without College

    ERIC Educational Resources Information Center

    Fertig, Jason

    2011-01-01

    One broad-based solution that critics like Charles Murray favor to the problem of too many students going on to college is to direct more young people into relevant job-training and certificate programs. Murray's argument, articulated in "Real Education: Four Simple Truths for Bringing America's Schools Back to Reality," is based on the belief…

  4. Whither EBO? Prospects for a Network Enabled Synergy

    DTIC Science & Technology

    2006-06-01

    1997. pp. 84-87. 3 Professor Murray Gell - Mann describes the complex adaptive system as one that “receives a stream of data about itself and... Murray Gell - Mann , “The Simple and the Complex,” Alberts and Czerwinski. pp. 8-10 4 James Grier Miller identifies a

  5. The New ISR Paradigm

    DTIC Science & Technology

    2011-05-02

    Peter M. Senge, The Fifth Discipline: The Art and Practice of the Learning Organization (New York: Doubleday/Currency, 1990), 7. 17 Murray Gell - Mann ...Intelligence Preparation of the BattlefieldjBattlespace. Washington, DC: Headquarters, Department of the Army, 15 October 2009. Gell - Mann , Murray , The

  6. Schools Celebrate National Anthem Anniversary

    ERIC Educational Resources Information Center

    Music Educators Journal, 2005

    2005-01-01

    Roger Lacher, instrumental music director at Murray Middle School in Ridgecrest, California, spearheaded a celebration of the national anthem attended by a descendant of Francis Scott Key. In a press release Lacher sent to the local media, he wrote: "Murray Middle School celebrated this event. We are blessed with having the great, great,…

  7. 77 FR 17564 - Notice of Final Federal Agency Actions on Proposed Highway in Utah

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-26

    ... proposed transportation corridor project (Cottonwood Street; 4500 South to Vine Street in Murray City, Salt... of Utah: Cottonwood Street; 4500 South to Vine Street in Murray City, Salt Lake County, project... between 4800 South and Vine Street. The project will improve connectivity and reduce pedestrian and...

  8. Reviews of the Book, "The Bell Curve: Intelligence and Class Structure in American Life"; "An Annotated Bibliography of Reviews of 'The Bell Curve'" (Lyle J. White); "A Statistical Critique of Herrnstein & Murray's 'The Bell Curve'" (Thomas R. Knapp); "A Response to 'The Bell Curve': Conversation with John Goodlad" (Mary R. Sudzina); "Voices in Education" (Marlene Schommer); "What Is 'Heritability' and What Is It Not?" (Lisabeth F. DiLalla, David L. DiLalla); "My Swing...!" (Dennis W. Leitner).

    ERIC Educational Resources Information Center

    Leitner, Dennis W., Ed.

    1996-01-01

    Collection of reviews of the controversial book "The Bell Curve" includes an annotated bibliography of 36 reviews in professional journals, edited books, and the popular press; a critique of the book's statistical appendixes; comments from John Goodlad, Howard Gardner, and others; discussion of heritability estimates; and summaries of a…

  9. Hiring Heroes Act of 2011

    THOMAS, 112th Congress

    Sen. Murray, Patty [D-WA

    2011-05-11

    07/18/2011 By Senator Murray from Committee on Veterans' Affairs filed written report. Report No. 112-36. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  10. 36 CFR 1223.4 - What publications are incorporated by reference in this part?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... change in the Federal Register and the material must be available to the public. All approved material is....pdf; it is published by the Department of Homeland Security (DHS), 245 Murray Lane, Washington,...

  11. 36 CFR 1223.4 - What publications are incorporated by reference in this part?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... change in the Federal Register and the material must be available to the public. All approved material is....pdf; it is published by the Department of Homeland Security (DHS), 245 Murray Lane, Washington,...

  12. Theories of suicidal behavior applied to Sylvia Plath.

    PubMed

    Lester, D

    1998-01-01

    The suicide of Sylvia Plath is examined from the perspective of 15 theories of suicidal behavior and is found to fit best with psychoanalytic and cognitive theories of suicide, in particular those of Aaron Beck, Henry Murray, and Edwin Shneidman.

  13. Sputum stain for mycobacteria

    MedlinePlus

    Murray PR. The clinician and the microbiology laboratory. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglass, and Bennett's Principles and Practice of Infectious Diseases . 6th ed. Philadelphia, ...

  14. 77 FR 27188 - Extension of Application Period for Seats for the Channel Islands National Marine Sanctuary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-09

    ... Channel Islands National Marine Sanctuary Advisory Council: Chumash Community Member and Alternate... FURTHER INFORMATION CONTACT: Michael Murray, Channel Islands National Marine Sanctuary, 113 Harbor Way... National Oceanic and Atmospheric Administration Extension of Application Period for Seats for the...

  15. 75 FR 12726 - Availability of Seats for the Channel Islands National Marine Sanctuary Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-17

    ... National Oceanic and Atmospheric Administration Availability of Seats for the Channel Islands National... vacant seats on the Channel Islands National Marine Sanctuary Advisory Council: Tourism alternate...@noaa.gov . FOR FURTHER INFORMATION CONTACT: Michael Murray, Channel Islands National Marine...

  16. 77 FR 6813 - President's National Security Telecommunications Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-09

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee..., National Protection and Programs Directorate, Department of Homeland Security, 245 Murray Lane, Mail...

  17. 75 FR 16159 - President's National Security Telecommunications Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-31

    ... SECURITY National Communications System President's National Security Telecommunications Advisory Committee...: The President's National Security Telecommunications Advisory Committee (NSTAC) will hold its annual... Management Branch, Department of Homeland Security, 245 Murray Lane, SW., Washington, DC 20598-0615....

  18. 75 FR 29781 - President's National Security Telecommunications Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-27

    ... SECURITY National Communications System President's National Security Telecommunications Advisory Committee... meeting. SUMMARY: The President's National Security Telecommunications Advisory Committee (NSTAC) will be...), Department of Homeland Security, 245 Murray Lane, SW., Washington, DC 20598-0615; Fax:...

  19. 36 CFR 1223.4 - What publications are incorporated by reference in this part?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    .... (c) The following Web publication is available on-line at http://www.fema.gov/pdf/about/offices/fcd1.pdf; it is published by the Department of Homeland Security (DHS), 245 Murray Lane, Washington,...

  20. 36 CFR 1223.4 - What publications are incorporated by reference in this part?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    .... (c) The following Web publication is available on-line at http://www.fema.gov/pdf/about/offices/fcd1.pdf; it is published by the Department of Homeland Security (DHS), 245 Murray Lane, Washington,...

  1. U.S. Cancer Deaths Decline Over Three Decades

    MedlinePlus

    ... explanations for high or increasing rates of cancer deaths in particular regions of the United States, but these factors need further investigation, Murray said. Known cancer risk factors -- smoking, diet and obesity, among others -- combined with poor ...

  2. A synopsis of the orchid weevil genus Orchidophilus Buchanan (Curculionidae, Baridinae), with taxonomic rectifications and description of one new species

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Six species of the weevil genus Orchidophilus Buchanan are recognized: O. epidendri (Murray) comb. n. (=Acythopeus genuinus Pascoe syn. n., =Baris orchivora Blackburn syn. n., =Apotomorhinus orchidearum Kolbe syn. n.), O. aterrimus (Waterhouse), O. eburifer (Pascoe) comb. n. (=Acythopeus gilvonotatu...

  3. 77 FR 29690 - Extension of a Currently Approved Collection; Comments Requested; COPS Extension Request Form

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-18

    ...,250 total annual burden hours. If additional information is required contact: Jerri Murray, Department... Staff, Two Constitution Square, 145 N Street NE., Room 2E-508, Washington, DC 20530. Jerri...

  4. 78 FR 75374 - Agency Information Collection Activities; Proposed Collection; Comments Requested:Application for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-11

    ... collection. ] If additional information is required contact: Jerri Murray, Department Clearance Officer..., 145 N Street NE., Room 3W-1407B, Washington, DC 20530. Dated: December 5, 2013. Jerri...

  5. 78 FR 59722 - Agency Information Collection Activities: Proposed Collection; Comments Requested; Notification...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-27

    ... collection. If additional information is required contact: Jerri Murray, Department Clearance Officer, Policy..., 145 N Street NE., Room 3W-1407B, Washington, DC 20530. Dated: September 24, 2013. Jerri...

  6. 75 FR 65518 - Notice of Determinations Regarding Eligibility To Apply for Worker Adjustment Assistance

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-25

    ... Stratton Corp., Murray, KY May 22, 2009. EPPG Div., Adecco. 74,181 Cold Spring Granite Company, Cold Spring, MN........ June 2, 2009. Granite Fabrication Division. 74,238 Sitel Operating Corporation,...

  7. 77 FR 4827 - Agency Information Collection Activities; Proposed Collection; Comments Requested: September 11th...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-31

    ... techniques or other forms of information technology, e.g., permitting electronic submission of responses...., Room 2E-508, Washington, DC 20530. Jerri Murray, Department Clearance Officer, PRA, U.S. Department...

  8. 77 FR 39260 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Jurors...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-02

    ..., electronic, mechanical, or other technological collection techniques of other forms of information technology... Street NE., Room 2E- 508, Washington, DC 20530. Dated: June 26, 2012. Jerri Murray Department...

  9. 77 FR 39261 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Applications...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-02

    ... information technology, e.g., permitting electronic submission of responses. Overview of this information... NE., Room 2E-508, Washington, DC 20530. Dated: June 26, 2012. Jerri Murray, Department...

  10. 27 CFR 12.21 - List of examples of names by country.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... geographic significance under § 4.24(c) (1) and (2) of this chapter. (a) Argentina: Alto Colorado, Valles..., Granite Belt, Great Western, Hunter Valley, McLaren Vale, Mudgee, Murray River Valley, New South...

  11. Imperforate hymen

    MedlinePlus

    ... 149. Sucato GS, Murray PJ. Pediatric and adolescent gynecology. In: Zitelli, BJ, McIntire SC, Norwalk AJ, eds. ... by: Irina Burd, MD, PhD, Associate Professor of Gynecology and Obstetrics at Johns Hopkins University School of ...

  12. Writing with Power: Techniques for Mastering the Writing Process.

    ERIC Educational Resources Information Center

    Murray, Donald M.; Hashimoto, Irwin

    1982-01-01

    Presents commentaries on Peter Elbow's "Writing with Power." Murray comments positively on Elbow's authoratative voice, while Hashimoto observes negatively that Elbow relies on generalizations and that his previous book will likely be of more use than "Writing with Power." (HTH)

  13. 77 FR 67025 - Agency Information Collection Activities: Proposed Collection; Comments Requested: Office of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-08

    ... Immigration-Related Unfair Employment Practices (OSC), Civil Rights Division, United States Department of.... If additional information is required contact: Jerri Murray, Department Clearance Officer, United States Department of Justice, Justice Management Division, Policy and Planning Staff, Two...

  14. Short-read DNA sequencing yields microsatellite markers for Rheum

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Identifying culinary rhubarb (Rheum ×hybridum Murray) cultivars using morphological characteristics is problematic due to variability within individual genotypes, variation caused by environmental factors, plant and leaf age, similarity between genetically diverse genotypes, multiple cultivar names ...

  15. Towards Applying Goal Autonomy for Vehicle Control

    DTIC Science & Technology

    2013-12-01

    receding horizon for the controller as in (Wongpiromsarn, Topcu, & Murray, 2009). Livingston, Murray, and Burdick (2012) and Sarid , Xu, and Kress-Gazit...interest as new destination goals ( Sarid et al., 2012). For a group of collaborating robots, the LTL controller synthesis problem quickly becomes...Apker, T., & Potter, M. (2012). Physicomimetic motion control of physically constrained agents. In W. Spears & D . Spears (Eds.), Physicomimetics

  16. Expanding the Department of Defense’s Role in Cyber Civil Support

    DTIC Science & Technology

    2011-06-17

    2011 Internet security conference, Deputy Defense Secretary William J . Lynn III commented on the DoD’s efforts to maximize its use of cyber...Peerenboom and Terrence K. Kelly, “Identifying, Understanding, and Analyzing Critical Infrastructure Dependencies,” IEEE Control Systems Magazine...Journal 5, no. 4 (1971): 205-208 and Jerome T. Murray and Marilyn J . Murray, Computers in Crisis (New York: Petrocelli Books Incorporated, 1984

  17. Worldwide Report, Environmental Quality, No. 407.

    DTIC Science & Technology

    2007-11-02

    Bay Dunes (THE WEST AUSTRALIAN, 9 Jun 83) 7 Briefs Soil Conservation 8 Murray Salinity Study 8 Queensland Oil Slick 8 EPA Pesticide Study 9...Flood Soil Erosion 9 Rottnest Reforestation 10 Endangered List for Tasmania 10 Herbicide Impact Study 10 NEW ZEALAND Government Drafting...present rate." [Text] [Brisbane THE COURIER-MAIL in English 6 Jun 83 p 10] MURRAY SALINITY STUDY —Sydney: A team of five NSW Government officers has

  18. Planning, Programming, and Budgeting System (PPBS)/Multi-year Programming: Reading Guide

    DTIC Science & Technology

    2010-09-01

    the production of the publication. We are indebted to Mr. lain MacArthur, Mr. Richard G. Brabin-Smith, and Mr. John Moten for their valuable advice...future outlook. Participants included, among others, John Keller, Russell Murray, Phillip Odeen, Ivan Selin, Leonard Sullivan, David Chu, Lawrence...planners and those who review their work. 31 Murray, Russell and Les Aspin. Searching for a Defense Strategy. Washington, D.C.: House of

  19. Software Performance on Nonlinear Least-Squares Problems

    DTIC Science & Technology

    1989-01-01

    Murray, and Wright [1981), Dennis and Schnabel (1983], and Mori and Sorensen [19841. Section 3 reviews the principal approaches that are used in software...2.3.1) where R1, is upper-triangular and nonsingular (see, e. g., Stewart [19731, Chapter 3 ). Gill and Murray alter the Cholesky factorization...problem, JTJo can be used as the initial estimate, provided the columns of Jo are linearly independent. 1 𔃽I 3 . Methods for Nonlinear Least Squares 3.1

  20. Muscle and Liver Carbohydrates: Response to Military Task Performance by Women and Men

    DTIC Science & Technology

    2001-10-01

    and Stein 1987; Jacobs et al. 1993; Moritani and Muro 1990; Nardone and Schieppati 1988; Nardone 1989: Sale 1982). EMG was recently used to demonstrate...known muscle activity pattern (Bilodeau et al. 1994; Capady and Stein 1987; Moritani and Muro 1987: Murray et al. 1976; Nardone and Schieppati 1988...Moritani and Muro 1987; Murray et al. 1976; Nardone and Schieppati 1988; Price and Gore 1998; Sloniger et al. 1998). The relative agreement between MRI and

  1. A Placebo-Controlled Augmentation Trial of Prazosin for Combat Trauma PTSD

    DTIC Science & Technology

    2011-06-01

    08-2-0069 TITLE: A Placebo-Controlled Augmentation Trial of Prazosin for Combat Trauma PTSD PRINCIPAL INVESTIGATOR: Murray...2011Annual01-06-2011 A Placebo-Controlled Augmentation Trial of Prazosin for Combat Trauma PTSD Murray Raskind Seattle Institute for Biomedical/Clinical...and tolerability of the alpha-1 adrenergic antagonist, prazosin , for reducing trauma nightmares and sleep disturbance and improving global

  2. Computational Studies of Energetic Organic Molecules

    DTIC Science & Technology

    1993-12-27

    with greater delocalization of the amine lone pair into the bond with increasing planarity, as shown in eq. (13). For instance, the calculated HF/3-21G...Kirschenheuter and Alster, 20 1987; Politzer and Murray, 1988; Politzer and Seminario, 1989]. Our " bond deviation index " was introduced as a numerical measure of...this index is given elsewhere [Politzer and Murray, 1988]. In Table 5 are listed our bond deviation indices for a variety of strained hydrocarbons

  3. The Erice Centre, Gell-Mann QCD, the Effective Energy and Complexity

    NASA Astrophysics Data System (ADS)

    Zichichi, A.

    2014-06-01

    On the occasion of the 80th Anniversary of Murray Gell-Mann I recalled the role played by Murray in those experimental and technological activities I had been directly involved during many years, which started in 1955 up to the time of the LHC supercollider, where we propose to study the Quark-Gluon-Coloured-World (QGCW), which is totally different from our world made of QCD colourless baryons and mesons...

  4. Development of Nonlinear Transient Analysis Algorithms for Dynamics and Control of Large Space Structures

    DTIC Science & Technology

    1991-05-01

    Office of Scientific Research under Grant F49620-87-C-0074. References 1. S. Rajasekaran and D. W . Murray , Incremental finite element matrices, J...2081-2105, 1968. 3. D. W . Murray , Finite element nonlinear analysis of plates, Ph. D. Dissertation, Dept. of Civil Engineering, University of...Air Force Office of Scientific Research (AFOSR) TABLE OF CONTENTS SUMMARY fENCLOSED PhD THESES AND PAPERS W . K. Belvin Simulation and Interdisciplinary

  5. Phosphate Stability in Diagenetic Fluids Constrains the Acidic Alteration Model for Lower Mt. Sharp Sedimentary Rocks in Gale Crater, Mars

    NASA Technical Reports Server (NTRS)

    Berger, J. A.; Schmidt, M. E.; Izawa, M. R. M.; Gellert, R.; Ming, D. W.; Rampe, E. B.; VanBommel, S. J.; McAdam, A. C.

    2016-01-01

    The Mars rover Curiosity has encountered silica-enriched bedrock (as strata and as veins and associated halos of alteration) in the largely basaltic Murray Fm. of Mt. Sharp in Gale Crater. Alpha Particle X-ray Spectrometer (APXS) investigations of the Murray Fm. revealed decreasing Mg, Ca, Mn, Fe, and Al, and higher S, as silica increased (Fig. 1). A positive correlation between SiO2 and TiO2 (up to 74.4 and 1.7 wt %, respectively) suggests that these two insoluble elements were retained while acidic fluids leached more soluble elements. Other evidence also supports a silica-retaining, acidic alteration model for the Murray Fm., including low trace element abundances consistent with leaching, and the presence of opaline silica and jarosite determined by CheMin. Phosphate stability is a key component of this model because PO4 3- is typically soluble in acidic water and is likely a mobile ion in diagenetic fluids (pH less than 5). However, the Murray rocks are not leached of P; they have variable P2O5 (Fig. 1) ranging from average Mars (0.9 wt%) up to the highest values in Gale Crater (2.5 wt%). Here we evaluate APXS measurements of Murray Fm. bedrock and veins with respect to phosphate stability in acidic fluids as a test of the acidic alteration model for the Lower Mt. Sharp rocks.

  6. Review and redescription of species in the Oecetis avara group, with the description of 15 new species (Trichoptera, Leptoceridae)

    PubMed Central

    Blahnik, Roger J.; Holzenthal, Ralph W.

    2014-01-01

    Abstract The O. avara group of Oecetis is formally defined to include 4 described species, O. avara (Banks), O. disjuncta (Banks), O. elata Denning & Sykora, and O. metlacenis Bueno-Soria, and 15 new species. Oecetis marquesi Bueno-Soria, previously considered a member of the O. avara group, is treated as incertae sedis to species group, but is also redescribed and treated in the current work. New species described here (with their respective distributions) include: O. acciptrina (Costa Rica, Panama, Ecuador), O. agosta (Mexico), O. angularis (Guatemala to Ecuador), O. apache (SW USA), O. campana (Ecuador), O. constricta (Mexico to Ecuador, Venezuela, and Trinidad), O. houghtoni (North America), O. maritza (Costa Rica), O. mexicana (Mexico to Ecuador), O. patula (Guatemala, Nicaragua), O. protrusa (Mexico to Ecuador), O. sordida (Mexico, USA, Canada), O. tumida (Costa Rica), O. uncata (Costa Rica), and O. verrucula (Mexico to Costa Rica). A key to the species is also provided. PMID:24574849

  7. Three new genera and three new species of Lasiopteridi (Diptera: Cecidomyiidae) on Rubiaceae from Guadeloupe, French West Indies, and a key to genera of Neotropical Lasiopteridi unplaced to tribe.

    PubMed

    Gagné, Raymond J; Etienne, Jean

    2015-10-12

    Three new genera of Lasiopteridi (Diptera: Cecidomyiidae), Faramitella Gagné, new genus, Anapeza Gagné, new genus, and Pellacara Gagné, new genus, each with one new species, are described. The new species are from leaf galls on Rubiaceae collected in Guadeloupe, F.W.I.: Faramitella planicauda Gagné, new species, was reared from Faramea occidentalis (L.) A. Rich.; Anapeza tumida Gagné, new species, and Pellacara postica, new species, were both reared from Psychotria mapourioides DC. The three new genera belong to Lasiopteridi but are unassigned to tribe. A key to the adult stage of these and 23 other Neotropical genera of unplaced Lasiopteridi whose adults are known is provided.

  8. Mn/Ca and Fe/Ca data from multiple species of planktonic foraminifers from the equatorial Pacific and subtropical South Atlantic: Indicators of surface ocean productivity, diagenesis of the shells, or both?

    NASA Astrophysics Data System (ADS)

    Howlett, J.; Mekik, F.

    2015-12-01

    Mn/Ca ratios in planktonic foraminifers have been purported to be indicators of terrestrial input, marine oxidation-reduction reactions and sea surface productivity in the eastern tropical Pacific. We investigated this hypothesis using Mn/Ca and Fe/Ca data from five species of planktonic foraminifers in 32 core tops from the eastern equatorial Pacific (EEP), five species from 12 core tops in the western equatorial Pacific, and two species from 15 core tops on the Rio Grande Rise. We present Mn/Ca and Fe/Ca data from Neogloboquadrina dutertrei, Globorotalia menardii, Globigerina bulloides, Pulleniatina obliquiloculata and Globorotalia tumida from the eastern and western equatorial Pacific and from Globorotalia truncatulinoides and Globorotalia inflata on the Rio Grande Rise. We find that the environmental parameter depicted by Mn/Ca and Fe/Ca ratios depends on the species of foraminifer from which the data was derived. Fe/Ca from N. dutertrei in the EEP have statistically significant and quantifiable relationships with apparent oxygen utilization, dissolved phosphate concentration and dissolved oxygen concentration in the habitat depths of this species. The Mn/Ca ratio from P. obliquiloculata and G. tumida are highest in regions of greatest productivity in the EEP. On the Rio Grande Rise, we explored the effect of dissolution in the sediments on Mn/Ca and Fe/Ca ratios from planktonic foraminifers. We used the G. menardii fragmentation index as our sedimentary dissolution indicator, and found that dissolution does not have a strong effect on the Mn/Ca and Fe/Ca ratios measured from foraminifers tests.

  9. Chemical variations observed on Aeolis Mons in Gale Crater, Mars

    NASA Astrophysics Data System (ADS)

    Frydenvang, Jens; Gasda, Patrick J.; Thompson, Lucy; Hurowitz, Joel; Grotzinger, John P.; Blaney, Diana L.; Gellert, Ralf; Wiens, Roger; Vasavada, Ashwin R.; MSL Science Team

    2016-10-01

    The extraordinarily extensive exposure of hematite-, clay-, sulfate-bearing stratigraphic layers in the lower part of Aeolis Mons was the primary reason Gale Crater was selected as the landing site for the Mars Science Laboratory rover, Curiosity. 753 martian solar days (sols) after the Curiosity rover landed in Gale Crater in August 2012, and after driving more than 9 km, the Curiosity rover arrived at the first exposure of the Murray formation, the basal layer of Aeolis Mons. The Murray formation is a thinly laminated lacustrine mudstone showing stratification down to the millimeter scale. This supports the idea that the stratigraphic layers of Aeolis Mons are sedimentary, and likely deposited in a series of long-lived lakes extending into the early Hesperian time, as recently described by Grotzinger et al. (Science, vol. 350, 2015). The chemical variations observed throughout the Murray formation by the ChemCam and APXS instruments in the 600+ sols since first arriving at Aeolis Mons will be presented. While Murray remains thinly laminated throughout the 30+ vertical meters of stratigraphy explored, large chemical variations are observed. The most extreme variations arise from likely co-located detrital and diagenetic silica enrichments in Murray. Remarkably, an associated diagenetic silica enrichment is also observed in the unconformably overlying eolian sandstone of the Stimson formation in that location. The detrital enrichment provides evidence of how the source region chemistry varied as the sedimentary layers of Aeolis Mons were deposited. Conversely, the diagenetic enrichment observed across both the Murray and Stimson formations provides compelling evidence for the presence of subsurface fluids in Gale Crater, thousands to millions of years after the crater lakes disappeared. This evidence of liquid water greatly extends the timescale in which Gale Crater might have been habitable.

  10. The Evolution of Joint Operations during the Civil War

    DTIC Science & Technology

    2009-06-12

    book The Dynamics of Military Revolution 1300-2050.21 The value of Knox and Murray is in the criteria they use to analyze an RMA. The book is a key...The Dynamics of Military Revolution: 1300-2050 (New York, NY: Cabridge University Press, 2001), 11-14; Parker. History of Warfare, 223-25; Reed...211. 25 Mark Grimsley. "Surviving Miltary Revolution: The U.S. Civil War." MacGregor Knox & Williamson Murray. The Dynamics of Military Revolution

  11. Robust Control of Multivariable and Large Scale Systems.

    DTIC Science & Technology

    1986-03-14

    a double Bezout identity to obtain the coefficients of K. (Youla, Jabr, and Bongiorno (1976), Desoer , Liu, Murray, and Saeks (1980) ). For simplicity...and M. Vidyasagar, "Feedback Systems: Input-Output Properties", New York: Academic Press, 1975. [D4] C.A. Desoer and W.S. Chan, "The feedback...interconnection of linear time-invariant sys- tems," J. Franklin Inst., 300, 1975, pp. 335-351. [D51 C.A. Desoer , R.W. Liu, J. Murray, and R. Saeks

  12. Painless dental laser - Keith Murry in lab

    NASA Technical Reports Server (NTRS)

    2000-01-01

    NASA inventor Keith Murray checks out laser technology that promises to make painless dental lasers affordable for dentists and their patients. Developed at NASA Langley Research Center, Hampton, Va., the dual-wavelength laser can be electronically switched between the two laser frequencies important to dentists. Co-inventors of the technology are Murray, Norman Barnes, also of Langley, and Ralph Hutcheson of Scientific Materials Corp., Bozeman, Montana. The technology was originally developed for studies of atmospheric wind change. Photographed in building 1202, laser lab.

  13. Thinking Straight: Cognitive Bias in the US Debate about China

    DTIC Science & Technology

    2004-01-01

    approach that is based on developing a broader, big-picture perspective— what Nobel Prize-winning physi- cist Murray Gell - Mann has termed a “crude... Murray Gell - Mann , “The Simple and the Complex,” Complexity, Global Politics and National Security (Washington, DC: Na- tional Defense University), 19...chapter 5.31 Cognitive Bias tems. Thus, in the broader sense, these approaches fail to achieve Gell -Mann’s “look at the whole” and in doing so

  14. Discovering the Effects-Endstate Linkage: Using Soft Systems Methodology to Perform EBO Mission Analysis

    DTIC Science & Technology

    2005-06-01

    1999): 3-7. 80 Ibid.: 5-7. 81 Ibid.: 2-7. 82 Murray Gell - Mann , The Quark and the Jaguar: Adventures in the Simple and the Complex (New York: W.H...Publishers, 1997. Gell - Mann , Murray . The Quark and the Jaguar: Adventures in the Simple and the Complex. New York: W.H. Freeman and Co., 1994. Guy... Gell - Mann , “when dealing with any non-linear system, especially a complex one, it is not sufficient to think of the system in terms of parts or aspects

  15. Solid State Research

    DTIC Science & Technology

    1993-08-15

    Level Yb:YAG Lasers P. A. Schulz Holmium Laser Pumped by 1.9-pum C. D. Nabors Diode Laser T.Y. Fan H. K. Choi G. W . Turner S. J. Eglash 1993 Conference...Maryland, S. J. Eglash 7 May 1993 Diamond Review M. W . Geis Seminar, AT&T Bell J. C. Twichell Laboratories, Murray Hill, New Jersey, II May 1993...Hartney Murray Hill, New Jersey, M. W . Horn 14 June 1993 M. Rothschild D. C. Shaver C. L. Keast Full-Wave Analysis of Superconducting L. H. Lee* 1993 IEEE

  16. Workshop on Cytokines and Parasites

    DTIC Science & Technology

    1988-03-01

    activation agents. Dr. Somesh Sharma (Applied Immunosciences) discussed the protective effects of IL-2 administration on experimental toxoplasmosis . Three to...10,000 in control mice to 200-300 cysts in treated mice. Dr. Murray (Cornell) described the imminent human clinical trials of IFN and AZT in AIDS

  17. Naval War College Review. Volume 59, Number 2, Spring 2006

    DTIC Science & Technology

    2006-01-01

    thought. His focus stemmed from a set of personal beliefs in which his reading of Augustine, Aquinas, and the Jesuit John Courtney Murray were prominent... documentary record from which to draw. The book naturally focuses on the relationship between campaign planning and execution, and one can see from

  18. Critical Thinking Activities and the Enhancement of Ethical Awareness: An Application of a "Rhetoric of Disruption" to the Undergraduate General Education Classroom

    ERIC Educational Resources Information Center

    Murray, Jeffrey W.

    2015-01-01

    This article explores how critical thinking activities and assignments can function to enhance students' ethical awareness and sense of civic responsibility. Employing Levinas's Other-centered theory of ethics, Burke's notion of "the paradox of substance", and Murray's concept of "a rhetoric of disruption", this article…

  19. The Bell Curve Wars. Race, Intelligence, and the Future of America.

    ERIC Educational Resources Information Center

    Fraser, Steven, Ed.

    "The Bell Curve" by Richard J. Herrnstein and Charles Murray has generated enormous debate as a result of its claim that there is a connection between race and intelligence. The essays of this collection respond to "The Bell Curve" in various ways. Taken together, the following offer an antidote to a work of dubious premises…

  20. Creative Writing as a Teaching Tool.

    ERIC Educational Resources Information Center

    Starkey, David, Ed.; And Others

    1995-01-01

    Offering the notion of writing pedagogy as a "bazaar with many booths," this collection of articles on teaching creative writing is focused on applicability to all levels of instruction. The 10 articles, after a Foreword by the editor, are, as follows: "Before Writing: Remember What Makes Writing Easy" (Donald M. Murray);…

  1. Chief Seattle's Speech Revisited

    ERIC Educational Resources Information Center

    Krupat, Arnold

    2011-01-01

    Indian orators have been saying good-bye for more than three hundred years. John Eliot's "Dying Speeches of Several Indians" (1685), as David Murray notes, inaugurates a long textual history in which "Indians... are most useful dying," or, as in a number of speeches, bidding the world farewell as they embrace an undesired but…

  2. Notes on Linguistics, 1994.

    ERIC Educational Resources Information Center

    Payne, David, Ed.

    1994-01-01

    This document contains the 1994 edition of a publication designed to share information in the field of linguistics that is of practical, theoretical, administrative, or general interest. Articles in these issues include: "Ethnography Vs. Questionnaire" (Thomas E. Murray); "Differences: A Diary Entry"--concerning structuralism…

  3. For Better or For Worse: Environmental Health Promotion in Support of Community Action Poster

    EPA Science Inventory

    Altgeld Gardens-Murray Homes is a public housing development situated within a toxic doughnut (surrounded by landfills, hazardous waste sites, and heavy manufacturing facilities) in the Riverdale Community of Chicago IL, USA. Concerned about high rates of environmentally-related...

  4. 75 FR 5315 - Boulder Canyon Project-Rate Order No. WAPA-150

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-02

    ... Register notice begins the formal process to extend the existing rate-setting formula and the proposed base... costs, including interest expense, and repayment of required investment within the allowable period... to (602) 605-2490, attention: Jack Murray. Western will post information about the rate process...

  5. Family Counseling Interventions: Understanding Family Systems and the Referral Process.

    ERIC Educational Resources Information Center

    McWhirter, Ellen Hawley; And Others

    1993-01-01

    This article describes concepts underlying the idea of the "family as a system"; compares and contrasts four approaches to family therapy (those of Virginia Satir, Jay Haley, Murray Bowen, and Salvador Minuchin); and offers suggestions to teachers referring parents for family counseling. (DB)

  6. Infants Are Sensitive to Within-Category Variation in Speech Perception

    ERIC Educational Resources Information Center

    McMurray, Bob; Aslin, Richard N.

    2005-01-01

    Previous research on speech perception in both adults and infants has supported the view that consonants are perceived categorically; that is, listeners are relatively insensitive to variation below the level of the phoneme. More recent work, on the other hand, has shown adults to be systematically sensitive to within category variation [McMurray,…

  7. Algorithm for the Retrieval of Fire Pixels from DMSP Operational Linescan System Data

    DTIC Science & Technology

    2007-11-02

    near Darjeeling , India in May 1848, British naturalist Joseph Dalton Hooker (1855) wrote that "fires, invisible by day, are seen raging all around...Washington, D.C, Final Report Volume II. Hooker , J.D., 1855: "Himalayan Journals" John Murray, London. 22 Row, L.W. Ill and Hastings, D.A., 1995

  8. Congressional Liaison Offices of Selected Federal Agencies

    DTIC Science & Technology

    2010-09-03

    Contacts Author Contact Information ...................................................................................................... 32...703) 604-6617 Fax: (703) 601-4469 http://www.dsca.mil/ E-mail: vanessa.murray@dsca.mil E-mail: LPA- web @dsca.mil Senate Liaison: Lorna...301) 415-1776 Fax: (301) 415-8571 http://www.nrc.gov/ Occupational Safety and Health Review Commission Ray Darling Executive Secretary

  9. Treatment of Depression and Anxiety in Parkinson's Disease: A Pilot Study Using Group Cognitive Behavioural Therapy

    ERIC Educational Resources Information Center

    Feeney, Farah; Egan, Sarah; Gasson, Natalie

    2005-01-01

    Depression and anxiety affect up to 50% of people with Parkinson's Disease (PD) (Marsh, 2000; Murray, 1996), however, few studies have examined the effectiveness of psychological treatment. This study examined the effectiveness of group cognitive behaviour therapy (CBT) in treating depression and anxiety in PD. Four participants, aged between 56…

  10. The Relativity of Genotypes and Phenotypes.

    ERIC Educational Resources Information Center

    Willie, Charles Vert

    1995-01-01

    Asserts that Herrnstein and Murray's "The Bell Curve" (1994) is an attempt to influence and control public discourse about public policy and inequality. It examines four of the book's flaws in classification, analyses, research, and its failure to recognize intelligence as having both genotypic and phenotypic manifestations. (GR)

  11. Queensland Seasons

    Atmospheric Science Data Center

    2016-05-27

    ... through grassland areas toward the Murray-Darling river system. In several areas, particularly along the right-hand portion of the ... structure, terrain and soil type, and by the different solar illumination conditions on the two dates. In the near-infrared band ...

  12. Cooperative Manipulation on the Water Using a Swarm of Autonomous Tugboats

    DTIC Science & Technology

    2008-05-01

    Lynch. Locally controllable manipulation by stable pushing. IEEE Transactions on Robotics and Automation, pages 318–327, 1999. [13] R. Murray, Z. Li, and...nipulators. IEEE Transactions on Robotics and Automation, 18(1):94 – 103, 2002. [25] H.G. Tanner, A. Jadbabaie, and G.J. Pappas. Stable flocking of mobile

  13. 33 CFR 165.817 - Arkansas River, Mile 118.2 to 125.4, Little Rock Arkansas-regulated navigation area.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... navigation area. (a) Location. The following is a regulated navigation area (RNA): The waters of the Arkansas River between mile 118.2 and mile 125.4. (b) Regulations. Transit of the RNA is limited during periods... or radio contact with the Lockmaster at Murray Lock and Dam. (c) Transit of the RNA during periods...

  14. 33 CFR 165.817 - Arkansas River, Mile 118.2 to 125.4, Little Rock Arkansas-regulated navigation area.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... navigation area. (a) Location. The following is a regulated navigation area (RNA): The waters of the Arkansas River between mile 118.2 and mile 125.4. (b) Regulations. Transit of the RNA is limited during periods... or radio contact with the Lockmaster at Murray Lock and Dam. (c) Transit of the RNA during periods...

  15. 33 CFR 165.817 - Arkansas River, Mile 118.2 to 125.4, Little Rock Arkansas-regulated navigation area.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... navigation area. (a) Location. The following is a regulated navigation area (RNA): The waters of the Arkansas River between mile 118.2 and mile 125.4. (b) Regulations. Transit of the RNA is limited during periods... or radio contact with the Lockmaster at Murray Lock and Dam. (c) Transit of the RNA during periods...

  16. 33 CFR 165.817 - Arkansas River, Mile 118.2 to 125.4, Little Rock Arkansas-regulated navigation area.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... navigation area. (a) Location. The following is a regulated navigation area (RNA): The waters of the Arkansas River between mile 118.2 and mile 125.4. (b) Regulations. Transit of the RNA is limited during periods... or radio contact with the Lockmaster at Murray Lock and Dam. (c) Transit of the RNA during periods...

  17. 33 CFR 165.817 - Arkansas River, Mile 118.2 to 125.4, Little Rock Arkansas-regulated navigation area.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... navigation area. (a) Location. The following is a regulated navigation area (RNA): The waters of the Arkansas River between mile 118.2 and mile 125.4. (b) Regulations. Transit of the RNA is limited during periods... or radio contact with the Lockmaster at Murray Lock and Dam. (c) Transit of the RNA during periods...

  18. New Perspectives on School Integration.

    ERIC Educational Resources Information Center

    Friedman, Murray, Ed.; And Others

    Sixteen essays dealing with issues surrounding school desegregation and racial integration comprise this book: (1) "School Integration Today: The Case for New Definitions," by Murray Friedman; (2) "Defining Brown's Integration Remedy for Urban School Systems," by Derrick A. Bell, Jr.; (3) "School Desegregation Can Succeed:…

  19. Writing and Publishing Handbook.

    ERIC Educational Resources Information Center

    Hansen, William F., Ed.

    Intended to provide guidance in academic publishing to faculty members, especially younger faculty members, this handbook is a compilation of four previously published essays by different authors. Following a preface and an introduction, the four essays and their authors are as follows: (1) "One Writer's Secrets" (Donald M. Murray); (2)…

  20. "I Am a Normal Man": A Narrative Analysis of the Accounts of Older People with Down's Syndrome Who Lived in Institutionalised Settings

    ERIC Educational Resources Information Center

    Brown, Jennifer; Dodd, Karen; Vetere, Arlene

    2010-01-01

    This paper is a narrative analysis of the accounts of six older people with Down's syndrome who spent part of their childhood in institutional environments. The study aimed to find out how the participants talked about themselves. Different types of narrative analysis were used, including those of Murray ("Qualitative psychology: a practical guide…

  1. Military Engineer Contribution to Operational Art: The Hybrid Threat Environment

    DTIC Science & Technology

    2015-05-22

    transportation of captured enemy material.152 To create these roads and access points for maneuver forces, engineers employed Rome plows to clear large...Murray, Williamson, and Peter R. Mansoor, eds. Hybrid Warfare: Fighting Complex Opponents from the Ancient World to the Present. Cambridge

  2. Extending the Principles of Intensive Writing to Large Macroeconomics Classes

    ERIC Educational Resources Information Center

    Docherty, Peter; Tse, Harry; Forman, Ross; McKenzie, Jo

    2010-01-01

    The authors report on the design and implementation of a pilot program to extend the principles of intensive writing outlined by W. Lee Hansen (1998), Murray S. Simpson and Shireen E. Carroll (1999) and David Carless (2006) to large macroeconomics classes. The key aspect of this program was its collaborative nature, with staff from two specialist…

  3. Effects of Context Type on Lipreading and Listening Performance and Implications for Sentence Processing

    ERIC Educational Resources Information Center

    Spehar, Brent; Goebel, Stacey; Tye-Murray, Nancy

    2015-01-01

    Purpose: This study compared the use of 2 different types of contextual cues (sentence based and situation based) in 2 different modalities (visual only and auditory only). Method: Twenty young adults were tested with the Illustrated Sentence Test (Tye-Murray, Hale, Spehar, Myerson, & Sommers, 2014) and the Speech Perception in Noise Test…

  4. Hiring the Next Generation of Faculty. New Directions for Community Colleges, Number 152

    ERIC Educational Resources Information Center

    Cejda, Brent D., Ed.; Murray, John P., Ed.

    2011-01-01

    This volume contains the following papers: (1) Preparing to Hire the Best in the Perfect Storm (John P. Murray); (2) New Faculty Issues: Fitting In and Figuring It Out (Pamela L. Eddy); (3) An Approach to a Faculty Professional Development Seminar (Mary Bendickson and Karen Griffin); (4) Faculty Issues in Rural Community Colleges (Brent D. Cejda);…

  5. "The Bell Curve": Ringing in the Contract with America.

    ERIC Educational Resources Information Center

    Farrell, Walter C., Jr.; And Others

    1995-01-01

    Herrnstein and Murray's "The Bell Curve" claims that IQ is hereditary and that African Americans consistently score 15 points lower than other racial groups. Coolly received by academics, the book is being warmly embraced by Republican politicians endorsing fiscal austerity and social mean-spiritedness. The book rationalizes a…

  6. From Poverty to Prosperity: Literacy's Impact on Canada's Economic Success. Summary

    ERIC Educational Resources Information Center

    Murray, Scott; Shillington, Richard

    2011-01-01

    To persuade policy makers to tackle poverty prevention through significant investment in literacy development, the authors, Murray and Shillington, analyzed the most recent data to illustrate the impact of literacy skills on a micro-, as well as macro-economic level. Statistics clearly show direct links between literacy skill and income level:…

  7. The Army Research Institute Unit Performance Research and Development Center

    DTIC Science & Technology

    1985-09-01

    6.1. 0 For the U. S. Army: For Caltech: ORIGINAL SIGNED BY ORIGINAL SIGNED BY J. R. Sculley Bruce Murray Assistant Secretary of the Director Army (RDA...by INGRES Technical Staff member John variety of devices Newton. GBF translates intormalion in an INGRES Tefminals-DEC’a VTl25, the Toktronix 40xx

  8. Electronic Health Records: VA and DOD Need to Support Cost and Schedule Claims, Develop Interoperability Plans, and Improve Collaboration

    DTIC Science & Technology

    2014-02-01

    Murray Chairman Committee on the Budget United States Senate The Honorable Bernard Sanders Chairman The Honorable Richard Burr Ranking Member...Page 13 GAO-14-302 Electronic Health Records known as the Captain James A. Lovell Federal Health Care Center (FHCC). The FHCC is unique in

  9. Should physicians prepare for war? 1. The obligation to care for the casualties.

    PubMed

    Bisgard, J C

    1982-04-01

    This is an introduction to a set of four commentaries on the controversy that has arisen over whether physicians should cooperate in Defense Department planning for the care of military casualties, airlifted to U.S. civilian hospitals, in the event of a large-scale war. The commentaries are by Jay C. Bisgard, H. Jack Geiger, James T. Johnson, and Thomas H. Murray.

  10. Investigation of an Acute Respiratory Disease Outbreak Due to Adenovirus Type 4 Among Recruits Fort Benning, Georgia, April-May 2000

    DTIC Science & Technology

    2000-05-01

    proposed for new respiratory tract viruses. Science 1956; 124:119-20. 8. Murray PR, Rosenthal KS, Kobayashi GS, Pfaller MA. Adenoviruses. In: Medical ... Microbiology , 3r edition. Mosby, MO, 1998; 412-418. 9. Sanchez MP, Erdman DD, Torok TJ, Freeman CJ, Matyas BT. Outbreak of adenovirus 35 pneumonia among

  11. Observation Tools for Professional Development

    ERIC Educational Resources Information Center

    Malu, Kathleen F.

    2015-01-01

    Professional development of teachers, including English language teachers, empowers them to change in ways that improve teaching and learning (Gall and Acheson 2011; Murray 2010). In their seminal research on staff development--professional development in today's terms--Joyce and Showers (2002) identify key factors that promote teacher change.…

  12. Empowering Workers to Rebuild America's Economy and Longer-Term Competitiveness: Green Skills Training for Workers. Hearing of the Committee on Health, Education, Labor, and Pensions, United States Senate, One Hundred Eleventh Congress, First Session on Examining Empowering Workers to Rebuild America's Economy and Longer-Term Competitiveness, Focusing on Green Skills Training for Workers (April 21, 2009). Senate Hearing 111-813

    ERIC Educational Resources Information Center

    US Senate, 2011

    2011-01-01

    Among the topics discussed in this hearing were: what constitutes green energy, how workers can best be provided the skills to thrive in green industries, and the future of America's energy and environmental policies. Statements were presented by: Honorable Patty Murray, a U.S. Senator from the State of Washington, opening statement; Honorable…

  13. Robust Controller Design: Minimizing Peak-to-Peak Gain

    DTIC Science & Technology

    1992-09-01

    Optimality of Feedback Control Systems: The SISO Discrete-Time Case", IEEE Trans. A-C, 35, 1082- 1085, 1990. [18] C.A. Desoer and M. Vidyasagar, Feedback...Systems: Input-Output Properties, Aca- demic Press, Inc, N.Y., 1975. [19] C.A. Desoer , R-W. Liu, J. Murray and R. Saeks. "Feedback System Design: The

  14. 75 FR 8187 - Qualification of Drivers; Exemption Renewals; Vision

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-23

    .... Murray, Anthony D. Ovitt, John R. Parsons, III, Martin Postma, Steven S. Reinsvold, Michael J. Richard, Glenn T. Riley, George E. Todd, Gary S. Warren and Bradley A. Weiser. In accordance with 49 U.S.C. 31136.... Cozat, Alex G. Dlugolenski, Karen Y. Duvall, Nigel L. Farmer, Gordon R. Fritz, John A. Graham, Jimmy...

  15. Black and Conservative: Finding a Place. A Symposium on Alan L. Keyes'"Masters of the Dream".

    ERIC Educational Resources Information Center

    Ervin, Clark Kent; And Others

    1995-01-01

    Presents commentaries from Clark Kent Ervin, A. J. Williams-Meyers, and Paul T. Murray on Alan L. Keyes'"Masters of the Dream: The Strength and Betrayal of Black America" (1995). They respond to Keyes' controversial assertions, among which is that the Great Society movement and liberalism have undermined black progress that today's…

  16. Individual Learning Issues. Symposium 44. [Concurrent Symposium Session at AHRD Annual Conference, 2000.

    ERIC Educational Resources Information Center

    2000

    This document contains three papers from a symposium on individual learning issues that was conducted as part of a conference on human resource development (HRD). "Communication in the Workplace: Using Myers-Briggs To Build Communication Effectiveness" (Patrice M. Scanlon, Judy K. Schmitz, Tracey Murray, Lisa M. Hooper) reports on a…

  17. Free, Classless, and Urbane?

    ERIC Educational Resources Information Center

    Kessel, Barbara Bailey

    1970-01-01

    A proponent of the New Left describes a classroom experience in which she considers her "working-class students as literary critics, and compares their comments to Murray Krieger's analysis of Andre Malraux's "Man's Fate. Reprinted from "The Radical Teacher, volume 2, December 30, 1969. (DS)

  18. Translating Methods of Shakespeare in China

    ERIC Educational Resources Information Center

    Sun, Yanna

    2009-01-01

    Shakespeare was not known to the Chinese until Lin Zexu's (1785-1850) translation of Hugh Murray's (1789-1845) "Cyclopedia of Geography" (1836). Afterwards Shakespeare in China saw many complicated changes, from being regarded as a story-teller to being fully received as a seasoned playwright and poet, and his plays were rendered into…

  19. Athabasca University/Keyano College Capstone Program. An Evaluation Report.

    ERIC Educational Resources Information Center

    Andrews, Michael B.; And Others

    An evaluative study was done of a joint project, the Capstone Program, involving Keyano College (KC) and Athabasca University (AU), both in Alberta, Canada. The project enables students in the Fort McMurray (Alberta) area to complete a full-time university degree without leaving their home community. The research design focused on accessibility,…

  20. When Books on Race Don't Help Us Know the Truth.

    ERIC Educational Resources Information Center

    Hochschild, Jennifer L.

    1996-01-01

    Argues that when the subject is the distortion of race and the promulgation of bias and stereotyping, even high-quality books are inappropriate for teaching and developing political debate. How these types of books have actually done more harm than good is explained with particular focus on "The Bell Curve" (Herrnstein and Murray, 1994)…

  1. The Teaching of Political Science in Developing Countries

    ERIC Educational Resources Information Center

    Navarro, Raul Bejar; And Others

    1978-01-01

    College level political science teaching in developing nations will be more relevant to students if it is developed within an interdisciplinary framework and is related to theories of organization, conflict, and social ecology. Journal available from UNIPUB, Box 433, Murray Hill Station, New York, New York 10016. (Author/DB)

  2. 78 FR 26657 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Identification...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-07

    ... identification on the materials manufactured. Marking of explosives enables law enforcement entities to more.... Manufacturers are required to place markings on explosives, therefore, the burden hours are considered usual and... required contact: Jerri Murray, Department Clearance Officer, Policy and Planning Staff, Justice...

  3. An Exploratory Study on the Assessment of Pre-Service Teacher Dispositions by Teacher Education Programs in Iowa

    ERIC Educational Resources Information Center

    Brindle, Sharon Evans

    2012-01-01

    Problem: Within the higher education community there is discourse regarding teacher dispositions and the assessment of dispositions. Murray (2007) and Damon (2007) posited that additional scholarship and research were needed to provide a meaningful construct of dispositions. With this lack of consensus, teacher education programs need to explore…

  4. 76 FR 28767 - Desert Southwest Customer Service Region-Rate Order No. WAPA-152

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-18

    ... Area Power Administration Desert Southwest Customer Service Region-Rate Order No. WAPA-152 AGENCY.... FOR FURTHER INFORMATION CONTACT: Mr. Darrick Moe, Regional Manager, Desert Southwest Customer Service... moe@wapa.gov , or Mr. Jack Murray, Rates Manager, Desert Southwest Customer Service Region,...

  5. Federal Habeas Corpus: A Brief Legal Overview

    DTIC Science & Technology

    2006-04-26

    courts, Edwards v. Carpenter , 529 U.S. 446, 452 (2000), quoting, Murray v. Carrier, 477 U.S. 478, 489 (1986), (“‘a claim of ineffective assistance’ must...Traiterous Conspiracies of Evill disposed Persons Bee it enacted . . . That every Person or Persons that shall be in Prison at or upon the Five and

  6. Policy and the Aerospace Industrial Base Beyond the Year 2000

    DTIC Science & Technology

    1993-01-29

    Defense: Paying for the Military After the Cold War (New York NY: Oxford University Press ), 1992. 6 NOTES 1 National Security Strategy of the United States...Weidenbaum, Murray, Small Wars, Big Defense: Paying for the Military After the Cold War (New York NY: Oxford University Press , 1992), 39,54-58. 8

  7. Policy Alternatives for Post-Industrial America Suggested in the "Bell Curve": The Untold Story.

    ERIC Educational Resources Information Center

    Bauer, Norman J.

    The primary problem that Richard J. Herrnstein and Charles Murray address in their book, "The Bell Curve," is that an unrecognized societal migration has been emerging in American society since 1950. People with high IQs are rewarded socially and economically, while the rest of the population has remained stagnant. This paper describes…

  8. Toward AUV Survey Design for Optimal Coverage and Localization using the Cramer Rao Lower Bound

    DTIC Science & Technology

    2010-06-01

    Eustice, L. Riggs, and G. Garcia -Moliner, “Characterizing the deep insular shelf coral reef habitat of the Hind Bank marine conservation district (US... Andrade -Cetto, and D. Murray, “Active control for single camera SLAM,” in IEEE Int Conf on Robotics and Automation, Orlando, May 2006, 2006, pp. 1930

  9. 77 FR 22346 - Agency Information Collection Activities: Proposed Collection; Comments Requested: Leased/Charter...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-13

    ... Expedited Clearance Request ACTION: 60-day notice of information collection under review. The Department of... Clearance Request. (3) Agency form number, if any, and the applicable component of the Department of Justice... is required contact: Jerri Murray, Department Clearance Officer, Policy and Planning Staff,...

  10. Dostoevsky: A Collection of Critical Essays. Twentieth Century Views Series.

    ERIC Educational Resources Information Center

    Wellek, Rene, Ed.

    One of a series of works aimed at presenting contemporary opinion on major authors, this collection includes essays by Rene Wellek, Philip Rahv, Murray Krieger, Irving Howe, Eliseo Vivas, D. H. Lawrence, Sigmund Freud, Dmitri Chizhevsky, V. V. Zenkovsky, Georg Lukacs, and Derek Traversi--all dealing with the biography and literary work of…

  11. Should a Special Educator Entertain Volunteers: Interdependence in Rural America.

    ERIC Educational Resources Information Center

    Marrs, Lawrence W.

    The National Rural Independent Living Network, funded to Murray State University (Kentucky) by the National Institute of Handicapped Research, is developing Community Independent Living Service Delivery Systems (CILSDS) for rural people with disabilities which will be housed in over 500 communities by early 1986. The CILSDS, staffed by citizen…

  12. Development and Validation of Reentry Simulation Using MATLAB

    DTIC Science & Technology

    2006-03-01

    used in the planning for the Mars Airplane (Murray, 2001:3), the aerocapture simulation for the Titan Explorer Mission to the Saturnian system (Way...1980. 17. Way, David W., et al. Aerocapture Simulation and Performance for the Titan Explorer Mission. 2003-4951. American Institute of...DEVELOPMENT AND VALIDATION OF REENTRY SIMULATION USING MATLAB THESIS Robert E Jameson Jr

  13. Racial Research and Final Solutions.

    ERIC Educational Resources Information Center

    Rushton, J. Philippe

    1997-01-01

    Presents descriptions, and critiques seven books that cover racism, primarily from the hermeneutical viewpoint. Suggests that all seven were written in response to the "Bell Curve" (Herrnstein and Murray, 1994) and that they collectively argue that any new evidence of genetic determinism is inadmissible on the grounds that empirical work…

  14. Developing Governmentality: Conduct [to the third power] and Education Policy

    ERIC Educational Resources Information Center

    Gillies, Donald

    2008-01-01

    This article examines education policy and the policy process in the light of two key concepts. The first is the concept of "governmentality" from the work of Michel Foucault (1991). The second is the concept of "political spectacle" from the work of Murray Edelman (1985, 1988). Taking note, further, of recent work by…

  15. Water Sector Coordinating Council Strategic Roadmap

    DTIC Science & Technology

    2008-10-01

    Agencies Charles Hilton, Breezy Hill Water and Sewer Company, National Rural Water Association Rick Karlin, AWWA Research Foundation Bill Komianos...Morley, WSCC Secretariat, American Water Works Association Chuck Murray, Fairfax Water, AWWA Research Foundation Roy Ramani, Water Environment...September 2004, the WSCC was formed by eight of the preeminent water and wastewater organizations: American Water Works Association ( AWWA ), AWWA

  16. Genetic dissection of bioenergy traits in sorghum

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Sorghum is an attractive biomass crop for ethanol production because of its low water and fertilizer requirements, tolerance to heat and drought, and high biomass yield. Because of the species’ great genetic diversity (Murray et al. 2009), and the fact that sorghum is a diploid, seed-propagated crop...

  17. Introduction to Music Theory and Aural Skills: A Study in Developing an Interactive Music Learning Environment for the Internet.

    ERIC Educational Resources Information Center

    Steffa, John A.

    In the Fall of 1998, a World Wide Web course called "Introduction to Music Theory and Aural Skills" was published at Murray State University (Kentucky) as an interactive and self-contained learning environment to provide a partial solution to the problem of incoming music students' inadequate preparation in fundamental music theory…

  18. 1. GENERAL VIEW, FROM SOUTHEAST. FRONT FACES EAST. Larger Building ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. GENERAL VIEW, FROM SOUTHEAST. FRONT FACES EAST. Larger Building is Hotel Williams (HABS No. MI-258). Photocopied from photograph taken August 4, 1965 by Jack Crosby of the Michigan Historical Commission. See also Hotel Williams, MI-258, for a photocopy of a drawing showing Williams House. - Hotel Williams, Williams House, Murray Bay, Munising, Alger County, MI

  19. Schooling in Capitalism: Navigating the Bleak Pathways of Structural Fate

    ERIC Educational Resources Information Center

    Murray, Kevin; Liston, Daniel P.

    2015-01-01

    In this review essay Kevin Murray and Dan Liston examine three texts in what this symposium has deemed the recent resurgence in neo-Marxist accounts of schooling: David Blacker's "The Falling Rate of Learning and the Neoliberal Endgame," Mike Cole's "Marxism and Educational Theory," and John Marsh's "Class Dismissed."…

  20. Educating toward Direct Democracy and Ecological Sustainability: Theory of Social Ecology as a Framework for Critical, Democratic, and Community-Based Education

    ERIC Educational Resources Information Center

    Holohan, Kevin J.

    2012-01-01

    The aim of this dissertation project was to explore and extrapolate the work of the left-libertarian social theorist, Murray Bookchin (1921-2006), paying particular attention to his theory of social ecology and to examine its implications for and use as a comprehensive philosophical/theoretical framework for alternative secondary education that…

  1. 75 FR 30776 - Extension of Application Period for Seats for the Channel Islands National Marine Sanctuary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-02

    ... Channel Islands National Marine Sanctuary Advisory Council: Commercial Fishing Alternate, Education... Murray, Channel Islands National Marine Sanctuary, 113 Harbor Way Suite 150 Santa Barbara, CA 93109-2315... National Oceanic and Atmospheric Administration Extension of Application Period for Seats for the...

  2. 78 FR 5779 - Extension of Application Period for Seats for the Channel Islands National Marine Sanctuary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-28

    ... Channel Islands National Marine Sanctuary Advisory Council: Business Alternate, Non-consumptive Recreation... sent to Danielle.lipski@noaa.gov . FOR FURTHER INFORMATION CONTACT: Michael Murray, Channel Islands... National Oceanic and Atmospheric Administration Extension of Application Period for Seats for the...

  3. 77 FR 55218 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of partially closed Federal Advisory Committee meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will...: Homeland Security Advisory Council, Department of Homeland Security, Mailstop 0450, 245 Murray Lane...

  4. Bovine TB and the 'singleton protocol': reward without risk

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The ‘Singleton Protocol” was initiated in 1996 by the Irish Department of Agriculture Fisheries and Food to address the shortfall in specificity of the single intradermal comparative cervical test (SICCT) for bTB. Findings from Murray et al., demonstrate that singleton candidates (i.e., from low ris...

  5. Maryland: A Geographic Study for Elementary Students.

    ERIC Educational Resources Information Center

    Fitzhugh, William P.

    This paper shows comparisons among the Chesapeake Bay region of Maryland, the Murray River region of South Australia, and the Rio de la Plata region of Uruguay. Through comparative geography, students are to draw their own conclusions about the similarities and differences of the three regions. Teachers are encouraged to use other resources to aid…

  6. A Geography of Uruguay for Elementary Children.

    ERIC Educational Resources Information Center

    Fitzhugh, William P.

    This paper is part of a larger study, conducted as part of a Christa McAuliffe Fellowship research project, "A Comparative Geography of Three Ecologically Similar Regions." The study compared the Chesapeake Bay region of Maryland with the Murray River region of South Australia and the Rio de la Plata region of Uruguay. The project was…

  7. What's Up Down Under? A Geography of Australia for Elementary Students.

    ERIC Educational Resources Information Center

    Fitzhugh, W.

    This paper is part of a larger study entitled "A Comparative Geography of Three Ecologically Similar Regions," which compares the Chesapeake Bay region of Maryland with the Murray River region of South Australia and the Rio de la Plata region of Uruguay. Readings with accompanying questions are intended for classroom use. Teachers are…

  8. United States Department of Education Update

    ERIC Educational Resources Information Center

    Linton, John

    2009-01-01

    This update reports the passing of Dr. Lane Murray, founding superintendent of the Windham School District in Texas and two time president of the Correctional Education Association. It also discusses the reauthorization of the Workforce Investment Act (WIA). In hopes of informing deliberations aimed at the reauthorization of WIA, the prestigious…

  9. Computational Studies of Energetic Strained Molecules: Properties and Syntheses of Tetrahedrane and Triprismane Systems

    DTIC Science & Technology

    1990-12-19

    Paul Redfern PERSONNEL: Dr. Michael Grodzicki Dr. Jorge M. Seminario Dr. Jane S. Murray JUNIOR RESEARCH Mr. Tore Brinck Mrs. Monica Concha PERSONNEL...Politzer, J. Phys. Chem., submitted. VI. Personnel Associated with this Project Dr. Peter Politzer Principal Investigator Mr. Tore Brinck Graduate

  10. Online Database Retrieval Service: A Statement of Policy.

    ERIC Educational Resources Information Center

    Wall, Celia J.

    Based partly on an online policy manual developed at the University of Houston, this policy statement for the Online Database Retrieval Service (ODRS) at Murray State University, Kentucky, provides guidelines for the librarian administering the service and for librarians conducting online searches. Eleven sections cover: (1) a statement of purpose…

  11. Data-Driven Performativity: Neoliberalism's Impact on Drama Education in Western Australian Secondary Schools

    ERIC Educational Resources Information Center

    Lambert, Kirsten; Wright, Peter R.; Currie, Jan; Pascoe, Robin

    2015-01-01

    In recent years, the much touted "difficult economic times" has resulted in a drastic reduction in arts and education funding in western capitalist nations (Fowles 2014; Henwood and Featherstone 2013; Murray and Erridge 2012; Smith 2013). Combined with this "age of austerity," schools have been subjected to decades of…

  12. Organizational Learning, Change and Socialization. Symposium.

    ERIC Educational Resources Information Center

    2002

    This symposium is comprised of three papers on organizational learning, change, and socialization. "A Study of the Organizational Learning Profile (OLP)" (Rae Dorai, Adela J. McMurray) reports findings that show the OLP (Pace et al. 1998) is a reliable instrument for measuring organizational learning and its content validity is high.…

  13. Intermountain Leisure Symposium Proceeding (Provo, Utah, November 17, 1983).

    ERIC Educational Resources Information Center

    Catherall, Thomas, Ed.; Hafen, William J., Ed.

    The following papers are included in these proceedings: (1) "A Needs Assessment for Computer Applications" (Bruce Holley); (2) "The Home, School, Community Partnership through Community Education" (Jim Burgon); (3) "Building Level Coordinators--How They Spend Their Time" (Burton Olsen and Murray Meszaros); (4) "Programming and Financing the…

  14. Multidrug-Resistant Bacterial Colonization of Combat-Injured Personnel at Admission to Medical Centers After Evacuation from Afghanistan and Iraq

    DTIC Science & Technology

    2011-07-01

    mul-tidrug-resistant [MDR] bacteria) infections, including those secondary to Acinetobacter baumannii -calcoaceticus complex, extended spectrum...REFERENCES 1. Scott P, Deye G, Srinivasan A, et al. An outbreak of multidrug-resistant Acinetobacter baumannii -calcoaceticus complex infection in the US...Hospenthal DR, Wortmann GW, Murray CK. Factors associated with recovery of Acinetobacter baumannii in a combat support hospital. Infect Control Hosp

  15. "The Bell Curve": Another Chapter in the Continuing Political Economy of Racism.

    ERIC Educational Resources Information Center

    Newby, Robert G.; Newby, Diane E.

    1995-01-01

    Criticizes Charles Murray's "The Bell Curve" and attempts a more cogent analysis of the respective roles of blacks and the U.S. political economy. Utilizes a sociology of knowledge framework to discuss the evolving nature of blacks in the nation's workforce. Briefly discusses eugenics and the history of racist social theories. (MJP)

  16. "The Bell Curve" and Carrie Buck: Eugenics Revisited.

    ERIC Educational Resources Information Center

    Smith, J. David

    1995-01-01

    The 1994 publication of "The Bell Curve" by R. Herrnstein and C. Murray is compared to other examples of eugenic principles, including the sterilization of "feebleminded" Carrie Buck, family degeneracy studies focusing on lower class Caucasian families, and other works that view the poorest and least educated members of society…

  17. For Whom the Bell Curves: Old Texts, Mental Retardation, and the Persistent Argument.

    ERIC Educational Resources Information Center

    Smith, J. David

    1995-01-01

    A review of secondary education and college biology textbooks published from 1900 through 1950 finds strong support for eugenics and Social Darwinism. These attitudes are related to effects of such recent books as "The Bell Curve" (by R. Herrnstein and C. Murray) for people with mental retardation. (DB)

  18. By Us, For Us: One School's Effort Tto Improve Student Writing.

    ERIC Educational Resources Information Center

    Paul, Susan

    2000-01-01

    Recounts Hill-Murray School's commitment to and involvement in the outcomes endorsement process for the past six years. Describes the steps the school took while focusing on writing as its target area goal. Also identifies a sub-population of students for writing development. Reports on a number of new initiatives in the school's curriculum.…

  19. 78 FR 4406 - Notice of Commission Staff Attendance

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-22

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal... stakeholders and will be held at: SCE&G--Lake Murray Training Center, Lexington, SC. For additional information... following proceedings: Docket No. ER13-107-000, South Carolina Electric & Gas Company For more...

  20. For Whom the Bell Tolls.

    ERIC Educational Resources Information Center

    Houston, Paul

    1996-01-01

    Selfishness has spawned a new breed of racism, driven by fear, fed by scarcity, and manifested through economic imperatives. California's Proposition 187 and Herrnstein and Murray's book "The Bell Curve" are built on racist foundations. Our current obsession with race is driven by an economy and an elitist social system that is…

  1. Joint Force Quarterly. Number 9, Autumn 1995

    DTIC Science & Technology

    1995-11-01

    umph of epic proportions, but its po- litical result was less gratifying. As Basil Liddell Hart, among many other stu- dents of strategy, pointed out...Making of Strategy: Rulers, States, and War edited by Williamson Murray, Macgregor Knox, and Alvin Bernstein Cambridge: Cambridge University Press

  2. The Strategic Planning Process and the Need for Grand Strategy

    DTIC Science & Technology

    2007-11-02

    Basil Liddell Hart defines the purpose of grand strategy as the means “to coordinate and direct all of the resources of the nation, or band of nations...University Press. Murray, William, MacGregor Knox, and Alvin Bernstein . The Making of Strategy. New York: Cambridge University Press, 1994. Naveh, Shimon

  3. The Proposed 2009 War Powers Consultation Act

    DTIC Science & Technology

    2009-03-19

    Company 1997), 20. 27 Ibid., 18. 28 Ibid., 20; Williamson Murray, MacGregor Knox, and Alvin Bernstein , eds., The Making of Strategy: Rulers, States and...violence carried on by political units against each other.” 86 Basil Henry Liddell Hart, Strategy, 2nd ed. (New York, NY: Penguin Books 1967), 338

  4. Air-Supported Anti-Infiltration Barrier.

    DTIC Science & Technology

    1966-08-01

    traff isuon tho r ation its cant in an nanner an u thorix orson i rohibito by low. EX OMf E DOWNGRADDTOROM CNFIDENTIL TO U0C -IN ACCORDANCE WJWH...Murray Kamrass and Dr. W. Scott Payne, of IDA/RESD, for gathering much of the background information on costs and sortie capability that made these

  5. Dive into the Deep End: Anchor Texts Build Understanding of Complex Ideas

    ERIC Educational Resources Information Center

    Zimmerman, Diane P.; Litzau, Katrina M.; Murray, Vicki L.

    2016-01-01

    In 2014, instructional coaches Katrina Litzau and Vicki Murray designed professional learning to support teachers and principals in developing a deeper understanding of the cognitive processes of leadership. Steeped in the Common Core State Standards and building on quality literacy instruction, they designed the professional learning based on…

  6. Handbook and Resource Directory for International Students and Scholars. Revised.

    ERIC Educational Resources Information Center

    Murray State Univ., KY.

    A handbook of information for foreign students, visiting scholars, and visiting faculty members is presented by Murray State University (Kentucky). The following topics are covered: academic life, automobiles, the Center for International Programs, child care, credential (transcript) evaluation, emergencies, employment, English language, finances,…

  7. Professional Competence and the Law. Dalhousie Continuing Legal Education Series, No. 21.

    ERIC Educational Resources Information Center

    Trakman, Leon E., Ed.; Watters, Douglas, Ed.

    Proceedings of a 1981 conference on professional competence and the law are presented. The perspectives of educators Leon Trakman, Murray Fraser, and Stewart Macaulay concerning the educational needs of the legal profession and the role of the law school are presented. The Canadian justices McIntyre and Cowan comment on the quality of lawyers'…

  8. 33 CFR 117.123 - Arkansas Waterway.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... with a Photoelectric Boat Detection System to prevent the span from lowering if there is an obstruction... equipped with a Photoelectric Boat Detection System to prevent the span from lowering if there is an... this section either before departing Murray Lock and Dam or before departing the mooring cells at...

  9. 15. Photocopy of architectural drawing (from Albuquerque Area Indian Health ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. Photocopy of architectural drawing (from Albuquerque Area Indian Health Service, Division of Health Facilities, Albuquerque, New Mexico) Mayers, Murray, and Phillip, Architects, New York, NY, 1934 First Floor - plumbing - Taos Indian Health Center, 0.3 mile south-southwest of Pueblos Plaza, Taos Pueblo, Taos County, NM

  10. 14. Photocopy of architectural drawing (from Albuquerque Area Indian Health ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. Photocopy of architectural drawing (from Albuquerque Area Indian Health Service, Division of Health Facilities, Albuquerque, New Mexico) Mayers, Murray, and Phillip, Architects, New York, N&, 1934 Foundation Plan - Taos Indian Health Center, 0.3 mile south-southwest of Pueblos Plaza, Taos Pueblo, Taos County, NM

  11. 18. Photocopy of architectural drawing (from Albuquerque Area Indian Health ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    18. Photocopy of architectural drawing (from Albuquerque Area Indian Health Service, Division of Health Facilities, Albuquerque, New Mexico) Mayers, Murray, and Phillip, Architects, New York, NY, 1934 Detail sheet - Taos Indian Health Center, 0.3 mile south-southwest of Pueblos Plaza, Taos Pueblo, Taos County, NM

  12. 16 Photocopy of architectural drawing (from Albuquerque Area Indian Health ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16 Photocopy of architectural drawing (from Albuquerque Area Indian Health Service, Division of Health Facilities, Albuquerque, New Mexico) Mayers Murray, and Phillip, Architects, New York, NY, 1934 first floor mechanical plan - heating - Taos Indian Health Center, 0.3 mile south-southwest of Pueblos Plaza, Taos Pueblo, Taos County, NM

  13. 17. Photocopy of architectural drawing (from Albuquerque Area Indian Health ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. Photocopy of architectural drawing (from Albuquerque Area Indian Health Service, Division of Health Facilities, Albuquerque, New Mexico) Mayers, Murray, and Phillip, Architects, New York, NY, 1934 Elevations - Taos Indian Health Center, 0.3 mile south-southwest of Pueblos Plaza, Taos Pueblo, Taos County, NM

  14. Respiratory acidosis

    MedlinePlus

    ... Names Ventilatory failure; Respiratory failure; Acidosis - respiratory Images Respiratory system References Effros RM, Swenson ER. Acid-base balance. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  15. Mediastinitis

    MedlinePlus

    ... prevent this complication. Alternative Names Chest infection Images Respiratory system References Cheng GS, Varghese TK, Park DR. Pneumomediastinum and mediastinitis. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray ... of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  16. Sarcoidosis

    MedlinePlus

    ... the elbow Sarcoidosis on the nose and forehead Respiratory system References Judson MA, Morgenthau AS, Baughman RP. Sarcoidosis. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  17. Pleural effusion

    MedlinePlus

    ... Fluid on the lung; Pleural fluid Images Lungs Respiratory system Pleural cavity References Broaddus VC, Light RW. Pleural effusion. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  18. Pulmonary veno-occlusive disease

    MedlinePlus

    ... disorder. Alternative Names Pulmonary vaso-occlusive disease Images Respiratory system References Chin K, Channick RN. Pulmonary hypertension. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  19. Industrial bronchitis

    MedlinePlus

    ... anatomy Bronchitis and normal condition in tertiary bronchus Respiratory system References Lemière C, Vandenplas O. Asthma in the workplace. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  20. Viral pneumonia

    MedlinePlus

    ... Names Pneumonia - viral; Walking pneumonia - viral Images Lungs Respiratory system References Lee FE, Treanor JJ. Viral infections. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  1. Respiratory alkalosis

    MedlinePlus

    ... shortness of breath. Alternative Names Alkalosis - respiratory Images Respiratory system References Effros RM, Swenson ER. Acid-base balance. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  2. Chemical pneumonitis

    MedlinePlus

    ... chemicals. Alternative Names Aspiration pneumonia - chemical Images Lungs Respiratory system References Blanc PD. Acute responses to toxic exposures. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  3. Metastatic cancer to the lung

    MedlinePlus

    ... ray Lung with squamous cell cancer - CT scan Respiratory system References Arenberg DA, Pickens A. Metastatic malignant tumors. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  4. Study Abroad: A Review of the Kentucky Institute for International Studies (KIIS) and Geographers' Role in the Consortium

    ERIC Educational Resources Information Center

    Sambrook, Richard Alan

    2008-01-01

    The Kentucky Institute for International Studies is a consortium of colleges and universities that provides semester length and short summer semester over-seas study programs. This article traces the growth of the consortium from its roots at Murray State University in 1975 through the celebration of its thirtieth anniversary in 2005. Aspects…

  5. College Distance from Home: Implications for Student Transfer Behavior

    ERIC Educational Resources Information Center

    Mattern, Krista D.; Wyatt, Jeffrey N.; Shaw, Emily J.

    2013-01-01

    This study explored college distance from home, a possible contributing factor of transfer behavior. Because the distance between a student's home and college has been found to be related negatively to social integration and positively to homesickness (i.e., Brooks & DuBois, 1995; Fisher, Murray, & Frazer, 1985; Tognoli, 2003), a positive…

  6. Enjoying Cultural Differences Assists Teachers in Learning about Diversity and Equality. An Evaluation of Antidiscrimination and Diversity Training

    ERIC Educational Resources Information Center

    Turnšek, Nada

    2013-01-01

    The present study is based on a quasi-experimental research design and presents the results of an evaluation of Antidiscrimination and Diversity Training that took place at the Faculty of Education in Ljubljana, rooted in the anti-bias approach to educating diversity and equality issues (Murray & Urban, 2012). The experimental group included…

  7. Lives and Deaths: Biographical Notes on Selections from the Works of Edwin S. Shneidman

    ERIC Educational Resources Information Center

    Leenaars, Antoon A.

    2010-01-01

    Edwin S. Shneidman (DOB: 1918-05-13; DOD: 2009-05-15) is a father of contemporary suicidology. His work reflects the intensive study of lives lived and deaths, especially suicides, and is the mirror to his mind. His contributions can be represented by five categories: psychological assessment, logic, Melville and Murray, suicide, and death. His…

  8. "Process and Intention": A Thirtieth-Year Reflection

    ERIC Educational Resources Information Center

    Gebhardt, Richard

    2011-01-01

    "Process and Intention: A Bridge from Theory to Classroom" is rooted in a time when intuitive, experience-based awareness that we should "Teach Writing as a Process Not Product" (Murray 3) was bolstered by systematic research into the complexity of writing. Lots of years have passed since those days, so as a reminder, the author mentions five…

  9. Commonplace Intersections within a High School Mathematics Leadership Institute

    ERIC Educational Resources Information Center

    Sack, Jacqueline J.

    2008-01-01

    This narrative inquiry weaves Schwab's commonplaces of curriculum and Clandinin, Pushor, and Murray Orr's narrative commonplaces through stories of conflict between a professional developer and 30 high school lead teachers. In her role as manager of a mathematics leadership institute situated between two urban public school districts and a…

  10. Addressing South Africa's Engineering Skills Gaps

    ERIC Educational Resources Information Center

    Hall, Jonathan; Sandelands, Eric

    2009-01-01

    Purpose: This paper aims to provide a case study of how engineering skills gaps are being addressed by Murray & Roberts in South Africa. Design/methodology/approach: The paper focuses on skills challenges in South Africa from a reflective practitioner perspective, exploring a case example from an industry leader. Findings: The paper explores…

  11. Reauthorizing the Higher Education Act: Opportunities to Improve Student Success. Additional Submitted Testimony from Lashawn Richburg-Hayes, MDRC, to the Senate Committee on Health, Education, Labor, and Pensions

    ERIC Educational Resources Information Center

    Richburg-Hayes, Lashawn

    2015-01-01

    MDRC is pleased to have this opportunity to provide additional information for the consideration of Chairman Alexander, Ranking Member Murray, and members of the Committee on ways research can be used to improve the academic success of low-income college students. The goal of this additional testimony is to reiterate the second recommendation in…

  12. Beyond Smash and Crash: Part Two

    ERIC Educational Resources Information Center

    McCarthy, Ray; Slater, Roy

    2011-01-01

    STEM studies and technological literacy are hot topics at the national and state level. At the October 20, 2009 Massachusetts STEM Summit, Lt. Governor Tim Murray spoke of the need for greater efforts in preparing our students for their technological future. In workshops throughout the day, speakers reiterated the same thing in many ways: neither…

  13. An Accounting International Experience Course

    ERIC Educational Resources Information Center

    Johnson, Leigh Redd; Rudolph, Holly R.; Seay, Robert A.

    2010-01-01

    Accounting students need practical opportunities to personally experience other cultures and international business practices if they are to effectively compete in today's global marketplace. In order to address this need, the Department of Accounting at Murray State University offers an international experience course which includes a short-term…

  14. Rejuvenating a Career College Library

    ERIC Educational Resources Information Center

    Harrison, Tiffany; Ward, Randall; Pace, Sean; Cornelius, Andi

    2009-01-01

    The librarian for the Stevens-Henager College, Murray, Utah campus was hired in the spring of 2008 and given the task of maintaining and improving the college's library and bookstore. It was soon discovered that many areas needed improvement (processes, outreach, policies, personnel, work-flow, etc.) Fortunately, she possessed skills from previous…

  15. Enquiry, Engagement, and eLearning: Three Perspectives on a Student-Centred, Online, Enquiry-Based Course

    ERIC Educational Resources Information Center

    Murray, Jacqueline; Giesbrecht, Natalie; Mosonyi, Samuel

    2013-01-01

    In the 2011 Winter semester, the University of Guelph engaged in a pedagogical experiment: an online first-year seminar. This article is a conversation about the learning journey that surrounds this seminar, as experienced by three participants: Jacqueline Murray (JM), Professor of History and Director of the FirstYear Seminar Program (FYS);…

  16. A Best Practices Guide in Social Skills Training for Kindergarten Teachers of Children with High Functioning Autism Spectrum Disorder

    ERIC Educational Resources Information Center

    Levine, Mandi Danielle

    2012-01-01

    This dissertation identifies social skills as the central treatment concern for young children with Asperger's Syndrome (AS)/High Functioning Autism Spectrum Disorder (HFASD) in an educational setting (Attwood, 1998; Macintosh & Dissanayake, 2006; Rao, Beidel, & Murray, 2008; Sansosti, 2010; Sansosti, Powell-Smith, & Cowan, 2010).…

  17. Investigation of a new method for determination of atmospheric refractivity corrections in satellite laser ranging.

    NASA Astrophysics Data System (ADS)

    Mironov, N. T.; Prokopov, A. V.; Remaev, E. V.

    1997-08-01

    A new algorithm is investigated for calculating atmospheric refractivity corrections in satellite laser ranging in the Earth's spherically stratified atmosphere based on results of measuring meteorological parameters on the Earth's surface. A numerical experiment with 125 meteorological sounding profiles shows that the new method allows to determine atmospheric refractivity corrections with the accuracy better than the Marini-Murray method does.

  18. Advances in Eye Tracking in Infancy Research

    ERIC Educational Resources Information Center

    Oakes, Lisa M.

    2012-01-01

    In 2004, McMurray and Aslin edited for "Infancy" a special section on eye tracking. The articles in that special issue revealed the enormous promise of automatic eye tracking with young infants and demonstrated that eye-tracking procedures can provide significant insight into the emergence of cognitive, social, and emotional processing in infancy.…

  19. Artmaking, Subjectivity, and Signification

    ERIC Educational Resources Information Center

    Walker, Sydney

    2009-01-01

    Drawing upon Lacanian psychoanalytic theory, neuroscience brain research, and the practices of contemporary artists Ann Hamilton, Jasper Johns, Elizabeth Murray, and Oliver Herring, this article argues for the relevance of conscious and unconscious knowledge in artistic practice. Parallels drawn between Lacanian psychoanalytic clinical practice…

  20. Channels for Improved Performance from Living on Campus

    ERIC Educational Resources Information Center

    de Araujo, Pedro; Murray, James

    2010-01-01

    In a recent study, de Araujo and Murray (2010) find empirical evidence that living on campus leads to improved student performance, finding both immediate effects (GPA improves while the student lives on campus) and permanent effects (GPA remains higher even after moving off campus). Using the same dataset, we extend the analysis to explain why…

  1. 76 FR 58079 - Notice of Passenger Facility Charge (PFC) Approvals and Disapprovals

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-19

    ... fencing and gates. Install fencing and gates. Brief Description of Projects Approved for Collection at ACV and Use at Murray Field (EKA): Design wildlife perimeter fencing. Design automated weather observing.... Design fencing and gates. Construct fencing and gates. Brief Description of Project Approved...

  2. Utah's First Joint Effort in Vocational Health

    ERIC Educational Resources Information Center

    Sprague, Richard F.

    1976-01-01

    Describes a tri-district program (in Utah's Granite, Jordan, and Murray school districts) to expand the health career program, which involved 62 field trips scouring the area's hospitals and health care centers, and student work experience opportunities, to expose students from 13 high schools to occupations beyond the traditional doctor and…

  3. Proceedings of the Annual Conference of the Association of Private Enterprise Education (11th, San Antonio, Texas, April 6-8,. 1986).

    ERIC Educational Resources Information Center

    Journal of Private Enterprise, 1986

    1986-01-01

    Papers in these proceedings are grouped under the following headings: addresses, entrepreneurship, entrepreneurship education, free market economics, public policy, and economic education. Papers include "Economic Freedom and Private Enterprise" (Murray L. Weidenbaum); "Marxism and the Free, Capitalist Society" (Tibor R. Machan); "Knowledge,…

  4. Aircraft Course Optimization Tool Using GPOPS MATLAB Code

    DTIC Science & Technology

    2012-03-01

    preceding paragraph and in reality relies heavily on the pseduospectral portion of GPOPS’ name. More specifically GPOPS uses the Radau Pseudospectral...Software for Solving Multiple-Phase Optimal Control Problems Using hp-Adaptive Pseu- dospectral Methods,” 2011. 9. Gill, P . E., Murray, W., and Saunders, M

  5. Gradient Sensitivity to Within-Category Variation in Words and Syllables

    ERIC Educational Resources Information Center

    McMurray, Bob; Aslin, Richard N.; Tanenhaus, Michael K.; Spivey, Michael J.; Subik, Dana

    2008-01-01

    Five experiments monitored eye movements in phoneme and lexical identification tasks to examine the effect of within-category subphonetic variation on the perception of stop consonants. Experiment 1 demonstrated gradient effects along voice-onset time (VOT) continua made from natural speech, replicating results with synthetic speech (B. McMurray,…

  6. Ezra Pound: A Collection of Critical Essays. Twentieth Century Views Series.

    ERIC Educational Resources Information Center

    Sutton, Walter, Ed.

    One of a series of works aimed at presenting contemporary critical opinion on major authors, this collection includes essays by Walter Sutton, William Butler Yeats, William Carlos Williams, T. S. Eliot, F. R. Leavis, Hugh Kenner, M. L. Rosenthal, Forrest Read, David W. Evans, W. M. Frohock, Harold H. Watts, Earl Miner, Murray Schafer, J. P.…

  7. 75 FR 44768 - National Sea Grant Review Panel

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-29

    ... forth the schedule and proposed agenda of a forthcoming meeting of the Sea Grant Advisory Board. Board members will discuss and provide advice on the National Sea Grant College Program in the areas of program... Highway, Silver Spring, MD. FOR FURTHER INFORMATION CONTACT: Mr. Jim Murray, National Sea Grant...

  8. And Academic Sexism Too: A Comment on "The Bell Curve."

    ERIC Educational Resources Information Center

    Coulter, Rebecca Priegert

    1995-01-01

    Like the "scientific" approaches of craniometry and eugenics, Herrnstein and Murray's methods and arguments reveal an ideological position not only on African Americans but also on the role of women. Points out their focus on women in discussions of "illegitimacy," birth control, and parenting, and their targeting of poor…

  9. Schooling Makes You Smarter: What Teachers Need to Know about IQ

    ERIC Educational Resources Information Center

    Nisbett, Richard E.

    2013-01-01

    In 1994, America took a giant step backward in understanding intelligence and how it can be cultivated. Richard Herrnstein, a psychology professor at Harvard University, and Charles Murray, a political scientist with the American Enterprise Institute, published "The Bell Curve," a best-selling book that was controversial among…

  10. Cross-Talk in Comp Theory: A Reader. Second Edition, Revised and Updated.

    ERIC Educational Resources Information Center

    Villanueva, Victor, Ed.

    This revised and updated resource contains a total of 43 essays that serve to initiate graduate students and more experienced teachers into the theories that inform composition studies. Under Section One--The Givens in Our Conversations: The Writing Process--are these essays: "Teach Writing as a Process Not Product" (Donald M. Murray);…

  11. How Do You Construct an Historical Claim? Examining How Year 12 Coped with Challenging Historiography

    ERIC Educational Resources Information Center

    Murrau, Kirstie

    2015-01-01

    While preparing her Year 12 students for an International Baccalaureate paper on early Islam, Kirstie Murray became concerned that students' weaknesses in making claims would be particularly exposed by the challenging complexity of this topic's source record and its contested historiography. Drawing on the practice of other history teachers,…

  12. Operation UPSHOT-KNOTHOLE. Operational Summary, Nevada Proving Grounds, 1 March - 9 June 1953

    DTIC Science & Technology

    1982-08-01

    atd Hr. Robert Lefaron attended. Atomic Enrgy Comissioners Dr. Bar D. Sqth, W. Thomas R. Murray and 11r. Eugene M. Zuckert visited the Proving...pertaining tot safe combinations, security practices within the DOD Area (A), classified trash tipoual atd termination procedures. S7 Makes periodic

  13. THE STATUS OF AND NEED FOR INDUSTRIAL EDUCATION IN THE PUBLIC SECONDARY SCHOOLS IN UTAH, A SPECIAL INDUSTRIAL EDUCATION RESEARCH PROJECT.

    ERIC Educational Resources Information Center

    BARTEL, CARL R.; LOVELESS, AUSTIN G.

    TO ASCERTAIN THE PRESENT STATUS OF AND THE NEED FOR INDUSTRIAL EDUCATION IN THE 40 SCHOOL DISTRICTS IN UTAH, DATA WERE OBTAINED DURING THE 1964-65 SCHOOL YEAR FROM ALL EXCEPT THE MURRAY DISTRICT. INTERVIEWS AND QUESTIONNAIRES WERE USED TO COLLECT DATA FROM 81 JUNIOR HIGH SCHOOLS AND 74 SENIOR HIGH SCHOOLS WITHOUT TRADE AND INDUSTRIAL PROGRAMS, 20…

  14. Fair Play: Teaching the Logical Fallacies.

    ERIC Educational Resources Information Center

    Griffin, Susan

    This paper describes a freshman composition course which looks at racism and sexism in science, and within which the instructor uses a 1989 "Atlantic Monthly" piece by R.J. Herrnstein, co-author with Charles Murray of "The Bell Curve." In his article, Herrnstein argues that the intelligence of the nation is declining because…

  15. A History of the Constructs IQ and Race: Putting "The Bell Curve" in Perspective.

    ERIC Educational Resources Information Center

    Fenwick, Leslie T.

    "The Bell Curve" by Richard Herrnstein and Charles E. Murray has created a great deal of controversy because of its assertion that the key to explaining inequality and social problems in the United States is stratification by a unitary entity called intelligence, or cognitive ability, as measured by the intelligence quotient (IQ). Their…

  16. Everything You Thought Was True about IQ Testing, but Isn't: A Reaction to "The Bell Curve."

    ERIC Educational Resources Information Center

    Dent, Harold E.

    Rather than focus on the numerous flaws in the book "The Bell Curve" (Herrnstein & Murray), this discussion focuses on the racism and bigoted beliefs of the pioneers in the mental measurement movement in the United States--beliefs which provided the background and opportunity for the publication of the book. A significant amount of…

  17. The African American Critique of White Supremacist Science.

    ERIC Educational Resources Information Center

    Jorgensen, Carl

    1995-01-01

    Excerpts writings of past African American intellectuals on the issue of presumptions of innate black mental inferiority, and applies their analyses to the scientific racism found in "The Bell Curve" (Herrnstein and Murray, 1994). Ideas for incorporating this critical tradition into current efforts, to prevent the resurgence of white…

  18. Yuehchukene, a Novel Anti-implantation Indole Alkaloid from Murraya paniculata.

    PubMed

    Kong, Y C; Ng, K H; Wat, K H; Wong, A; Saxena, I F; Cheng, K F; But, P P; Chang, H T

    1985-08-01

    Yuehchukene, 11beta-(3'-indolyl-7,9alpha,9beta-trimethyl-5beta,8,9,10beta-tetrahydroindano-[2,3- B]indole, a novel dimeric indole alkaloid from the roots of MURRAY A PANICULATA has potent anti-implantation activity in rats at 3 mg/kg P. O. dosing on pregnancy day 2.

  19. Talking Wild.

    ERIC Educational Resources Information Center

    Crawford, Lyall

    1996-01-01

    Focuses on the concept of "interplay"--interlinking and interdependence of the human and nonhuman worlds. Discusses (following Murray Bookchin's terms) the transactional quality of first and second nature, and the contexts of obedience and control that often impact their coexistence. Uses an excerpt from Gloria Anzaldua's fiction to fuel…

  20. Delivered! A Mid-Sized Academic Library's Experience with Distance Education

    ERIC Educational Resources Information Center

    Bartnik, Linda

    2010-01-01

    Murray State University (Kentucky) has been experimenting with various means of document delivery and research instruction for its online only and satellite campuses. These include ILLiad-based document delivery, Camtasia-to-UTube tutorials, a discipline-based service called Library on Blackboard, Eluminate and other virtual instructional methods.…