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Sample records for montastrea annularis ellis

  1. Environmental implications of growth rate changes in Montastrea Annularis: Biscayne National Park, Florida

    USGS Publications Warehouse

    Hudson, J. Harold; Hanson, Kirby J.; Halley, Robert B.; Kindinger, Jack G.

    1994-01-01

    Long-term annual growth rates were determined for 25 Montastrea annularis colonies at eight reef sites in Biscayne National Park, Florida. X-radiographs of slabbed coral cores revealed chronologies that averaged 113.5 years in length with a range of 40 to 242 years. A total of 2,837 annual growth increments were identified and measured. Dating of density bands was verified by visually crossdating fluorescent bands within the coral skeleton. Average accretion rates of individual colonies varied from 5.0 mm·yr−1 in the northernmost sector of the Park to 11.3 mm·yr−1 in the southernmost sector. Long-term growth rates of most corals in this study were greatest prior to about 1950 except for a major, 3–5 year, decline in the growth record of older corals centered around 1878. Waxing and waning coral growth rates are discussed in relation to natural and anthropogenic perturbations that impact this high latitude reef ecosystem. Attention is drawn to nutrients from sewage outfalls as a possible contributing factor to observed growth rate decline since 1950.

  2. Recovery of the coral Montastrea annularis in the Florida Keys after the 1987 Caribbean ``bleaching event''

    NASA Astrophysics Data System (ADS)

    Fitt, William K.; Spero, Howard J.; Halas, John; White, Michael W.; Porter, James W.

    1993-07-01

    Many reef-building corals and other cnidarians lost photosynthetic pigments and symbiotic algae (zooxanthellae) during the coral bleaching event in the Caribbean in 1987. The Florida Reef Tract included some of the first documented cases, with widespread bleaching of the massive coral Montastrea annularis beginning in late August. Phototransects at Carysfort Reef showed discoloration of >90% of colonies of this species in March 1988 compared to 0% in July 1986; however no mortality was observed between 1986 and 1988. Samples of corals collected in February and June 1988 had zooxanthellae densities ranging from 0.1 in the most lightly colored corals, to 1.6x106 cells/cm2 in the darker corals. Minimum densities increased to 0.5x106 cells/cm2 by August 1989. Chlorophyll- a content of zooxanthellae and zooxanthellar mitotic indices were significantly higher in corals with lower densities of zooxanthellae, suggesting that zooxanthellar at low densities may be more nutrientsufficient than those in unbleached corals. Ash-free dry weight of coral tissue was positively correlated with zooxanthellae density at all sample times and was significantly lower in June 1988 compared to August 1989. Proteins and lipids per cm2 were significantly higher in August 1989 than in February or June, 1988. Although recovery of zooxanthellae density and coral pigmentation to normal levels may occur in less than one year, regrowth of tissue biomass and energy stores lost during the period of low symbiont densities may take significantly longer.

  3. The effect of prolonged ``bleaching'' on skeletal banding and stable isotopic composition in Montastrea annularis

    NASA Astrophysics Data System (ADS)

    Leder, James J.; Szmant, Alina M.; Swart, Peter K.

    1991-07-01

    X-radiography and carbon and oxygen stable isotope analysis have been used to examine the effects of prolonged “bleaching” on the growth rate and chemical composition of the skeleton of the massive reef coral, Montastrea annularis. The post-bleaching linear growth of one colony that remained bleached for 10 to 12 months following the 1987 Caribbean-wide bleaching event was only 37% of mean annual growth from pre-bleaching years, and was manifest as a loss of the following year's low density band. Two colonies that did not bleach (normal) and two that bleached and regained their coloration (recovered) had linear growth rates over the same period that were 81 to 98% of mean pre-bleaching annual growth. Linear growth by a third recovered coral was 66% of pre-bleaching growth. No sub-annual stress bands were associated with the bleaching. The skeleton of the bleached colony had carbon and oxygen isotopic compositions that were reduced in range and enriched (increased) in both 13C and 18O in the post-bleaching year. The skeletons of two of the nine colonies, one bleached and one recovered, had depleted (reduced) δ18O values (-5.3 and -4.8%., respectively) during the bleaching episode that agree with the suggestion that positive temperature anomalies occurred during, and may have caused, the bleaching event. The range and values for all other normal and recovered corals, however, were not different between the post-bleaching year and previous years. Our data suggest that stress bands and isotopic analysis of coral skeletons may not always be reliable tools for examining the occurrence, cause or effects of certain discrete stress events that may interrupt skeletal growth.

  4. Fallout plutonium and natural radionuclides in annual bands of the coral Montastrea annularis, St. Croix, U. S. Virgin Islands

    SciTech Connect

    Benninger, L.K.; Dodge, R.E.

    1986-12-01

    The authors have investigated the banded coral Montastrea annularis as a recorder of the history of fallout Pu in surface seawater. To aid the Pu interpretation Ca, Mg, Sr, Na and natural radionuclides (/sup 238/U, /sup 228/Ra, /sup 232/Th and /sup 210/Pb) were also determined in the annual bands. In small samples (0.5 g) Ca, Mg and Na show correlated variations which could be due to seasonal variability in uptake. The /sup 238/U and /sup 228/Ra records were generally consistent with uptake, at constant discrimination, from surface-water reservoirs of nearly constant concentration, although one sample showed probable diagenetic addition of U. /sup 232/Th was not detected with certainty; this implies that terrigenous particles were not consistently entrapped within the coral skeleton. Interpretation of /sup 210/Pb was difficult because /sup 226/Ra was not measured. Montastrea annularis preserves a record of fallout Pu. To make this record useful it must be considered in the broadest possible geochemical context.

  5. The effects of prolonged ``bleaching'' on the tissue biomass and reproduction of the reef coral Montastrea annularis

    NASA Astrophysics Data System (ADS)

    Szmant, A. M.; Gassman, N. J.

    1990-04-01

    Colonies of Montastrea annularis from Carysfort Reef, Florida, that remained bleached seven months after the 1987 Caribbean bleaching event were studied to determine the long term effects of bleaching on coral physiology. Two types of bleached colonies were found: colonies with low numbers of zooxanthellae with normal pigment content, and a colony with high densities of lowpigment zooxanthellae. In both types, the zooxanthellae had an abnormal distribution within polyp tissues: highest densities were observed in basal endoderm and in mesenteries where zooxanthellae are not normally found. Bleached corals had 30% less tissue carbon and 44% less tissue nitrogen biomass per skeletal surface area, but the same tissue C:N ratio as other colonies that either did not bleach (normal) or that bleached and regained their zooxanthellae (recovered). Bleached corals were not able to complete gametogenesis during the reproductive season following the bleaching, while recovered corals were able to follow a normal gametogenic cycle. It appears that bleached corals were able to survive the prolonged period without nutritional contribution from their zooxanthellae by consuming their own structural materials for maintenance, but then, did not have the resources necessary for reproduction. The recovered corals, on the other hand, must have regained their zooxanthellae soon after the bleaching event since neither their tissue biomass nor their ability to reproduce were impaired.

  6. Long-term monitoring of reef corals at the Flower Garden Banks (northwest Gulf of Mexico): Reef coral population changes and historical incorporation of barium in Montastrea annularis

    SciTech Connect

    Deslarzes, K.J.P.

    1992-01-01

    Reef coral populations were monitored from 1988 to 1991 at the Flower Garden Banks located in the northwestern Gulf of Mexico. The status of reef coral populations, and natural or man-made factors potentially affecting their well-being were determined. Man-made chronic disturbances are degrading coral reef resources on a global scale. Yet, the Flower Garden coral reefs seem to have been sheltered from the effects of regional stresses generated by population growth and increased industrial activity. Since 1974, reef coral population levels have remained unchanged in the Montastrea-Diploria Zones at the Flower Garden Banks. Live coral cover ranges between 46 and 46.5%. Montastrea annularis and Diploria strigosa comprise 80% of the coral cover on either bank. The remainder of the cover is mostly shared by eight other taxa. Coral taxa appear to be more homogeneously distributed on the West Bank. The relatively greater number of Agaricia spp., Madracis decastis, and P. astreoides colonies on the East Bank may be the source of a decreased evenness. The health of reef corals was assessed using repetitive and non-repetitive photographic methods, and accretionary growth measurements of M. annularis. Reef corals have undergone small scale changes at the Flower Gardens probably reflecting natural disturbance, predation, disease, and inter-specific competition. White mat disease (ridge disease) is shown to generate more tissue loss than any of the three bleaching events that took place at the Flower Gardens (1989, 1990, and 1991). Advance to retreat linear ratios of encrusting growth revealed a net tissue gain on the East Bank and a net tissue loss on the West Bank. Growth rates of M. annularis were highly variable. The annual barium content from 1910 in 1989 in a M. annularis colony from the West Flower Garden did not reveal trends associated with the extensive oil and gas exploration in the northern Gulf of Mexico.

  7. Microanalyses of O isotopes and elemental ratios of reef building coral (Montastrea annularis) by ion microprobe

    NASA Astrophysics Data System (ADS)

    Gabitov, R. I.; Carricart Ganivet, J. P.; Prieto, R. I.

    2012-12-01

    Our understanding of climate change and oceanographic variability through time is largely derived from knowledge of oxygen isotopes (δ18O) and elemental ratios (X/Ca) signatures in coral reefs. However, the existence of inconsistencies in isotopic composition between different coral specimens suggests that factors other than temperature and seawater composition affect isotopic and chemical records. We conducted in situ Secondary Ion Mass Spectrometry (SIMS) analyses on the reef building coral (Montastraea annularis) from Veracuz Reef in the southern Gulf of Mexico. Coral specimen was sliced in perpendicular and parallel directions of its growth. Therefore, one of the sections exposed simultaneously grown skeletal material; another section represents a time series of continuously extended skeleton. The complex microstructure of the coral yields a few morphologically different zones (architectural elements). There are theca-wall (Th), septa (S), costa (C), exothecal (ExD) and endothecal dissepiments (EnD). Dissepiments formation in Montastraea annularis is linked to moon cycles and there are 12 or 13 ExD formed per year; meanwhile, there are 24 or 26 EnD per year (Dávalos-Dehullu et al. 2008). SIMS analyses were performed on Th, S, C, ExD, and EnD at lateral spatial resolution of ~20 μm. SIMS spot profiles with 100 and 500 μm steps were conducted on Th wall in the direction of coral growth. SIMS analyses demontrate that δ18O in Th, S, C, and ExD that grown at the same time are similar to each other within 1 sigma error. However, δ18O in EnD is isotopically heavier by 1 ‰ than those of simultaneously grown T,S, and ExD. The reverse dependence of δ18O on growth rate of corals and inorganically precipitated aragonite was reported by previous works and potentially could explain the δ18O enrichment in EnD, which grow by 35% slower than ExD (McConnaughey 1989; Dávalos-Dehullu et al. 2008; Gabitov 2012). SIMS spot profiles in the coral growth direction yielded

  8. Havelock Ellis, eugenicist.

    PubMed

    Crozier, Ivan

    2008-06-01

    This article examines the contributions made towards eugenic thought in the late nineteenth and early twentieth centuries by Havelock Ellis (1859-1939). Ellis was a significant social reformer who worked on the problems of sexuality from a scientific-naturalist secular perspective. In the later phases of his work, after he had completed much of his writing on sexuality, Ellis concentrated on issues of feminism and eugenics--problems he thought were interlinked. In this paper, I integrate his ideas about these subjects, and consider the ways in which Ellis and other liberal social reformers created a 'eugenic subject' in order to frame their arguments about social problems.

  9. Geometry of spinning Ellis wormholes

    NASA Astrophysics Data System (ADS)

    Chew, Xiao Yan; Kleihaus, Burkhard; Kunz, Jutta

    2016-11-01

    We give a detailed account of the properties of spinning Ellis wormholes, supported by a phantom field. The general set of solutions depends on three parameters, associated with the size of the throat, the rotation, and the symmetry of the solutions. For symmetric wormholes the global charges possess the same values in both asymptotic regions, while this is no longer the case for nonsymmetric wormholes. We present mass formulas for these wormholes, study their quadrupole moments, and discuss the geometry of their throat and their ergoregion. We demonstrate, that these wormholes possess limiting configurations corresponding to an extremal Kerr black hole. Moreover, we analyze the geodesics of these wormholes, and show that they possess bound orbits.

  10. Ellis-van Creveld syndrome.

    PubMed

    Sasalawad, Shilpa S; Hugar, Shivayogi M; Poonacha, K S; Mallikarjuna, Rachappa

    2013-07-09

    Ellis-van Creveld (EvC) syndrome or chondroectodermal dysplasia is an autosomal recessive disorder with characteristic clinical manifestations. The four principal characteristics are chondrodysplasia, polydactyly, ectodermal dysplasia and congenital heart defects. Its incidence in the general population is low. The oral manifestations of EvC syndrome include both soft tissues and teeth, but the dental literature on the subject is scarce. The present case describes the constant and variable oral findings in these patients, which can be diagnosed at any age, even during pregnancy. The presence of a variety of oral manifestations, such as fusion of upper lip to the gingival margin, presence of multiple frenula, abnormally shaped and microdontic teeth and congenitally missing teeth requires multidisciplinary dental treatment, with consideration for the high incidence of cardiac defects in these patients.

  11. Al Ellis: Up Close and Personal

    ERIC Educational Resources Information Center

    Eckstein, Daniel; Ellis, Debbie Joffe

    2011-01-01

    The purpose of the following article is to share some of the personal relationship comments and to provide a tribute to the significant 93 years that Albert Ellis lived and also make major contributions to the counseling profession.

  12. Ellis-van Creveld syndrome.

    PubMed

    Baujat, Geneviève; Le Merrer, Martine

    2007-06-04

    Ellis-van Creveld syndrome (EVC) is a chondral and ectodermal dysplasia characterized by short ribs, polydactyly, growth retardation, and ectodermal and heart defects. It is a rare disease with approximately 150 cases reported worldwide. The exact prevalence is unknown, but the syndrome seems more common among the Amish community. Prenatal abnormalities (that may be detected by ultrasound examination) include narrow thorax, shortening of long bones, hexadactyly and cardiac defects. After birth, cardinal features are short stature, short ribs, polydactyly, and dysplastic fingernails and teeth. Heart defects, especially abnormalities of atrial septation, occur in about 60% of cases. Cognitive and motor development is normal. This rare condition is inherited as an autosomal recessive trait with variable expression. Mutations of the EVC1 and EVC2 genes, located in a head to head configuration on chromosome 4p16, have been identified as causative. EVC belongs to the short rib-polydactyly group (SRP) and these SRPs, especially type III (Verma-Naumoff syndrome), are discussed in the prenatal differential diagnosis. Postnatally, the essential differential diagnoses include Jeune dystrophy, McKusick-Kaufman syndrome and Weyers syndrome. The management of EVC is multidisciplinary. Management during the neonatal period is mostly symptomatic, involving treatment of the respiratory distress due to narrow chest and heart failure. Orthopedic follow-up is required to manage the bones deformities. Professional dental care should be considered for management of the oral manifestations. Prognosis is linked to the respiratory difficulties in the first months of life due to thoracic narrowness and possible heart defects. Prognosis of the final body height is difficult to predict.

  13. 8. NORTH ELLIS WORKS LOOKING SOUTHWEST. BOTTLING HOUSE, RIGHT, FIVE ...

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

    8. NORTH ELLIS WORKS LOOKING SOUTHWEST. BOTTLING HOUSE, RIGHT, FIVE CHAMBER CONDENSER, AND BURIED NORTH ELLIS THREE PIPE INCLINED RETORT, BACKGROUND LEFT. - Mariscal Quicksilver Mine & Reduction Works, Terlingua, Brewster County, TX

  14. Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.

    PubMed

    Foster, Nicola L; Baums, Iliana B; Sanchez, Juan A; Paris, Claire B; Chollett, Iliana; Agudelo, Claudia L; Vermeij, Mark J A; Mumby, Peter J

    2013-01-01

    K-selected species with low rates of sexual recruitment may utilise storage effects where low adult mortality allows a number of individuals to persist through time until a favourable recruitment period occurs. Alternative methods of recruitment may become increasingly important for such species if the availability of favourable conditions for sexual recruitment decline under rising anthropogenic disturbance and climate change. Here, we test the hypotheses that asexual dispersal is an integral life history strategy not only in branching corals, as previously reported, but also in a columnar, 'K-selected' coral species, and that its prevalence is driven by the frequency of severe hurricane disturbance. Montastraea annularis is a long-lived major frame-work builder of Caribbean coral reefs but its survival is threatened by the consequences of climate induced disturbance, such as bleaching, ocean acidification and increased prevalence of disease. 700 M. annularis samples from 18 reefs within the Caribbean were genotyped using six polymorphic microsatellite loci. We demonstrate that asexual reproduction occurs at varying frequency across the species-range and significantly contributes to the local abundance of M. annularis, with its contribution increasing in areas with greater hurricane frequency. We tested several competing hypotheses that might explain the observed pattern of genotypic diversity. 64% of the variation in genotypic diversity among the sites was explained by hurricane incidence and reef slope, demonstrating that large-scale disturbances combine with local habitat characteristics to shape the balance between sexual and asexual reproduction in populations of M. annularis.

  15. John A. Scigliano Interviews Allan B. Ellis.

    ERIC Educational Resources Information Center

    Scigliano, John A.

    2000-01-01

    This interview with Allan Ellis focuses on a history of computer applications in education. Highlights include work at the Harvard Graduate School of Education; the New England Education Data System; and efforts to create a computer-based distance learning and development program called ISVD (Information System for Vocational Decisions). (LRW)

  16. Ellie Mannette: Master of the Steel Drum.

    ERIC Educational Resources Information Center

    Svaline, J. Marc

    2001-01-01

    Presents an interview with Elliot ("Ellie") Mannette who has played a major role in the development and application of steel drums. States that he has spent most of his life designing and teaching the steel drums. Covers interview topics and background information on Mannette. (CMK)

  17. Remediation System Evaluation, Ellis Property Superfund Site

    EPA Pesticide Factsheets

    The Ellis Property Superfund Site is located in a rural area of Burlington County, New Jersey. Most ofthe land at the site has not been developed. However, there is a building in a fenced area that is used tohouse the remedial system..

  18. Bending of Light in Ellis Wormhole Geometry

    NASA Astrophysics Data System (ADS)

    Bhattacharya, Amrita; Potapov, Alexander A.

    A recent work by Dey and Sen derived the approximate light deflection angle α by an Ellis wormhole in terms of proper radial distance ℓ that covers the entire spacetime. On the other hand, Bodenner and Will calculated the expressions for light bending in Schwarzschild geometry using various coordinates and showed that they all reduce to a single formula when re-expressed in the coordinate independent language of "circumferential radius" rC identified with the standard radial coordinate rS. We shall argue that the coordinate invariant language for two-way wormholes should be ℓ rather than rS. Hence here we find the exact deflection α in Ellis wormhole geometry first in terms of ℓ and then in terms of rS. We confirm the latter expression using three different methods. We argue that the practical measurement scheme does not necessarily single out either ℓ or rS. Some errors in the literature are corrected.

  19. Widespread prevalence of cryptic Symbiodinium D in the key Caribbean reef builder, Orbicella annularis

    NASA Astrophysics Data System (ADS)

    Kennedy, Emma V.; Foster, Nicola L.; Mumby, Peter J.; Stevens, Jamie R.

    2015-06-01

    Symbiodinium D, a relatively rare clade of algal endosymbiont with a global distribution, has attracted interest as some of its sub-cladal types induce increased thermal tolerance and associated trade-offs, including reduced growth rate in its coral hosts. Members of Symbiodinium D are increasingly reported to comprise low-abundance `cryptic' (<10 %) proportions of mixed coral endosymbiont communities, with unknown ecological implications. Real-time PCR (RT-PCR) targeted to specific types is sufficiently sensitive to detect these background symbiont levels. In this study, RT-PCR was employed to screen 552 colonies of the key Caribbean reef builder Orbicella annularis sampled across a 5.4 million km2 range for the presence of cryptic Symbiodinium `D1' (i.e., the principal Caribbean ITS2 variants, D1 and D1-4). All but one out of 33 populations analysed were shown to host low abundances of Symbiodinium D1, with an average of >30 % of corals per site found to harbour the symbiont. When the same samples were analysed using the conventional screening technique, denaturing gradient gel electrophoresis, Symbiodinium D1 was only detected in 12 populations and appeared to be hosted by <12 % of colonies where present (in agreement with other reported low prevalence/absences in O. annularis). Cryptic Symbiodinium D1 showed a mainly uniform distribution across the wider Caribbean region, although significantly more Mesoamerican Barrier Reef corals hosted cryptic Symbiodinium D1 than might be expected by chance, possibly as a consequence of intense warming in the region in 1998. Widespread prevalence of thermally tolerant Symbiodinium in O. annularis may potentially reflect a capacity for the coral to temporarily respond to warming events through symbiont shuffling. However, association with reduced coral calcification means that the ubiquitous nature of Symbiodinium D1 in O. annularis populations is unlikely to prevent long-term declines in reef health, at a time when

  20. John Tracy Ellis and the Figure of the Catholic Intellectual

    ERIC Educational Resources Information Center

    Conniff, Brian

    2006-01-01

    Fifty years after John Tracy Ellis challenged the quality and character of Catholic intellectual life, much work remains to be done. This essay explores Ellis's original assertions and places them in an overarching historical context that involves Flannery O'Connor and Thomas Merton.

  1. Second Language Acquisition Research: A Response to Rod Ellis.

    ERIC Educational Resources Information Center

    Hopkins, Diana; Nettle, Mark

    1994-01-01

    Two practicing English-as-a-Foreign-Language (EFL teachers respond to Rod Ellis' January 1993 article in "ELT Journal," which discussed importance of grammar instruction in EFL classrooms. Argues some of Ellis' assumptions about current classroom practices are inaccurate and a number of his "alternative" approaches to teaching grammar, such as…

  2. GRAVITATIONAL MICROLENSING BY THE ELLIS WORMHOLE

    SciTech Connect

    Abe, F.

    2010-12-10

    A method to calculate light curves of the gravitational microlensing of the Ellis wormhole is derived in the weak-field limit. In this limit, lensing by the wormhole produces one image outside the Einstein ring and another image inside. The weak-field hypothesis is a good approximation in Galactic lensing if the throat radius is less than 10{sup 11} km. The light curves calculated have gutters of approximately 4% immediately outside the Einstein ring crossing times. The magnification of the Ellis wormhole lensing is generally less than that of Schwarzschild lensing. The optical depths and event rates are calculated for the Galactic bulge and Large Magellanic Cloud fields according to bound and unbound hypotheses. If the wormholes have throat radii between 100 and 10{sup 7} km, are bound to the galaxy, and have a number density that is approximately that of ordinary stars, detection can be achieved by reanalyzing past data. If the wormholes are unbound, detection using past data is impossible.

  3. Analysis of complete mitochondrial DNA sequences of three members of the Montastraea annularis coral species complex (Cnidaria, Anthozoa, Scleractinia)

    NASA Astrophysics Data System (ADS)

    Fukami, Hironobu; Knowlton, Nancy

    2005-11-01

    Complete mitochondrial nucleotide sequences of two individuals each of Montastraea annularis, Montastraea faveolata, and Montastraea franksi were determined. Gene composition and order differed substantially from the sea anemone Metridium senile, but were identical to that of the phylogenetically distant coral genus Acropora. However, characteristics of the non-coding regions differed between the two scleractinian genera. Among members of the M. annularis complex, only 25 of 16,134 base pair positions were variable. Sixteen of these occurred in one colony of M. franksi, which (together with additional data) indicates the existence of multiple divergent mitochondrial lineages in this species. Overall, rates of evolution for these mitochondrial genomes were extremely slow (0.03 0.04% per million years based on the fossil record of the M. annularis complex). At higher taxonomic levels, patterns of genetic divergence and synonymous/nonsynonymous substitutions suggest non-neutral and unequal rates of evolution between the two lineages to which Montastraea and Acropora belong.

  4. Physiological response of the Caribbean Coral O. annularis to Pollution Gradients

    NASA Astrophysics Data System (ADS)

    Murphy, E. L.; Sivaguru, M.; Fouke, B. W.

    2014-12-01

    Orbicella annularis is an abundant ecological cornerstone framework-building Scleractinian coral throughout the Caribbean Sea. The O. annularis holobiont (biotic and abiotic components of the coral) is negatively impacted by increased exposure to anthropogenic pollution. This is consistently evidenced by altered tissue cellular composition, and skeletal structure. The O. annularis' holobiont is weakened by increased exposure to sewage and ship bilge pollution. Pollution exposure is characterized by decreased skeletal growth, as well as decreased zooxanthellae and chromatophore tissue cell densities. Healthy colonies studied at five sites on the leeward coast of Curacao, along a systematically decreasing pollution concentration, were sampled from the back-reef depositional facies of a protected fringing reef tract. A unidirectional oceanographic current flows to the NW past the city of Willemstad, a large point source of human sewage and ship bilge. This setting creates an ideal natural laboratory for in situ experimentation that quantitatively tracks the impact to coral physiology along a gradient from unimpacted to polluted seawater. Our lab has established laser scanning microscopy for three-dimensional (3D) quantification of zooxanthellae, and chromatophore cellular tissue density. X-ray computed tomography (BioCT) was used for analysis of skeletal density. Zooxanthellae density decreased as pollution concentration increased. Chromatophore density showed no significant relationship with pollution concentration but varied dramatically within each site. This suggests zooxanthellae density is highly impacted by environmental stress while variation in chromatophore density is driven by genetic variation. These results will be used to create a new model for environmental impacts on coral physiology and skeletal growth.

  5. Biological Responses of the Coral Montastraea annularis to the Removal of Filamentous Turf Algae

    PubMed Central

    Cetz-Navarro, Neidy P.; Espinoza-Avalos, Julio; Hernández-Arana, Héctor A.; Carricart-Ganivet, Juan P.

    2013-01-01

    Coral reef degradation increases coral interactions with filamentous turf algae (FTA) and macroalgae, which may result in chronic stress for the corals. We evaluated the effects of short (2.5 month) and long (10 month) periods of FTA removal on tissue thickness (TT), zooxanthellae density (ZD), mitotic index (MI), and concentration of chlorophyll a (Chl a) in Montastraea annularis at the beginning and end of gametogenesis. Ramets (individual lobes within a colony) consistently surrounded by FTA and ramets surrounded by crustose coralline algae (CCA) were used as controls. FTA removal reduced coral stress, indicated by increased TT and ZD and lower MI. The measured effects were similar in magnitude for the short and long periods of algal removal. Ramets were more stressed at the end of gametogenesis compared with the beginning, with lower ZD and Chl a cm−2, and higher MI. However, it was not possible to distinguish the stress caused by the presence of FTA from that caused by seasonal changes in seawater temperature. Ramets surrounded by CCA showed less stress in comparison with ramets surrounded by FTA: with higher TT, Chl a cm−2 and ZD, and lower MI values. Coral responses indicated that ramets with FTA suffered the most deleterious effects and contrasted with those measured in ramets surrounded by CCA. According to published studies and our observations, there could be at least six mechanisms associated to FTA in the stress caused to M. annularis by FTA. Owing to the high cover of FTA (in contrast to macroalgae and CCA) in the Caribbean, the chronic stress, the overgrowth and mortality that this functional algal group can cause on M. annularis species complex, a further decline of this important reef-building coral in the Caribbean is expected. PMID:23372774

  6. Sibling species in Montastraea annularis, coral bleaching, and the coral climate record

    SciTech Connect

    Knowlton, N.; Weil, E.; Weigt, L.A.; Guzman, H.M. )

    1992-01-17

    Measures of growth and skeletal isotopic ratios in the Caribbean coral Montastraea annularis are fundamental to many studies of paleoceanography, environmental degradation, and global climate change. This taxon is shown to consist of at least three sibling species in shallow water. The two most commonly studied of these show highly significant differences in growth rate and oxygen isotopic ratios, parameters routinely used to estimate past climatic conditions; unusual coloration in the third may have confused research on coral bleaching. Interpretation or comparison of past and current studies can be jeopardized by ignoring these species boundaries.

  7. Ellis-van Creveld syndrome and dyserythropoiesis.

    PubMed

    Scurlock, Deven; Ostler, Daniel; Nguyen, Andy; Wahed, Amer

    2005-05-01

    Ellis-van Creveld (EVC) syndrome or chondroectodermal dysplasia is a rare autosomal recessive disorder characterized by a variable spectrum of clinical findings. Classical EVC syndrome comprises a tetrad of clinical manifestations of chondrodystrophy, polydactyly, ectodermal dysplasia, and cardiac defects. In several case reports, dysplasia involving other organs has also been identified. Hematologic abnormalities have been rarely reported in patients with EVC syndrome. Here, we report a case of a 3-year-old Hispanic boy with EVC syndrome and marked dyserythropoiesis. The dyserythropoiesis may be part of an isolated myelodysplastic change or a primary myelodysplastic syndrome and likely represents an unusual EVC syndrome association. To our knowledge, this association has not been previously reported.

  8. Sexual vs. asexual reproduction in an ecosystem engineer: the massive coral Montastraea annularis.

    PubMed

    Foster, Nicola L; Baums, Iliana B; Mumby, Peter J

    2007-03-01

    1. Long-lived sedentary organisms with a massive morphology are often assumed to utilize a storage effect whereby the persistence of a small group of adults can maintain the population when sexual recruitment fails. However, employing storage effects could prove catastrophic if, under changing climatic conditions, the time period between favourable conditions becomes so prolonged that the population cannot be sustained solely be sexual recruitment. When a species has multiple reproductive options, a rapidly changing environment may favour alternative asexual means of propagation. 2. Here, we revisit the importance of asexual dispersal in a massive coral subject to severe climate-induced disturbance. Montastraea annularis is a major framework-builder of Caribbean coral reefs but its survival is threatened by the increasing cover of macroalgae that prevents settlement of coral larvae. 3. To estimate levels of asexual recruitment within populations of M. annularis, samples from three sites in Honduras were genotyped using four, polymorphic microsatellite loci. 4. A total of 114 unique genets were identified with 8% consisting of two or more colonies and an exceptionally large genet at the third site comprising 14 colonies. 5. At least 70% of multicolony genets observed were formed by physical breakage, consistent with storm damage. 6. Our results reveal that long-lived massive corals can propagate using asexual methods even though sexual strategies predominate.

  9. Photosynthetic Acclimation of Symbiodinium in hospite Depends on Vertical Position in the Tissue of the Scleractinian Coral Montastrea curta

    PubMed Central

    Lichtenberg, Mads; Larkum, Anthony W. D.; Kühl, Michael

    2016-01-01

    Coral photophysiology has been studied intensively from the colony scale down to the scale of single fluorescent pigment granules as light is one of the key determinants for coral health. We studied the photophysiology of the oral and aboral symbiont band of scleractinian coral Montastrea curta to investigate if different acclimation to light exist in hospite on a polyp scale. By combined use of electrochemical and fiber-optic microsensors for O2, scalar irradiance and variable chlorophyll fluorescence, we could characterize the physical and chemical microenvironment experienced by the symbionts and, for the first time, estimate effective quantum yields of PSII photochemistry and rates of electron transport at the position of the zooxanthellae corrected for the in-tissue gradient of scalar irradiance. The oral- and aboral Symbiodinium layers received ∼71% and ∼33% of surface scalar irradiance, respectively, and the two symbiont layers experience considerable differences in light exposure. Rates of gross photosynthesis did not differ markedly between the oral- and aboral layer and curves of PSII electron transport rates corrected for scalar irradiance in hospite, showed that the light use efficiency under sub-saturating light conditions were similar between the two layers. However, the aboral Symbiodinium band did not experience photosynthetic saturation, even at the highest investigated irradiance where the oral layer was clearly saturated. We thus found a different light acclimation response for the oral and aboral symbiont bands in hospite, and discuss whether such response could be shaped by spectral shifts caused by tissue gradients of scalar irradiance. Based on our experimental finding, combined with previous knowledge, we present a conceptual model on the photophysiology of Symbiodinium residing inside living coral tissue under natural gradients of light and chemical parameters. PMID:26955372

  10. Actinobdella inequinnulata (Annelida: Hirudinida:Rhynchobdellida:Glossiphoniidae) from White Crappie, Pomoxis annularis (Perciformes: Centrarchidae), in Arkansas, USA

    EPA Science Inventory

    One of 4 (25%) white crappie, Pomoxis annularis from the Ouachita River, Dallas County, Arkansas, was found to be infested with 8 glossiphoniid leeches, Actinobdella inequiannulata Moore, 1901. Leeches were removed from within the oeprculum on gills and gill arches. This leech i...

  11. 75. SACRED HEART SCHOOL, 1324 ELLIS STREET SOUTH (REAR ELEVATION ...

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

    75. SACRED HEART SCHOOL, 1324 ELLIS STREET SOUTH (REAR ELEVATION FROM GREENE STREET 56/61A - Greene Street Historic District, Greene Street, Gordon Highway to Augusta Canal Bridge, Augusta, Richmond County, GA

  12. 45. VIEW OF TWO ROOM STONE STRUCTURES BELOW ELLIS WORKS ...

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

    45. VIEW OF TWO ROOM STONE STRUCTURES BELOW ELLIS WORKS TAILINGS, ALONG ACCESS ROAD TO SITE LOOKING NORTHWEST. NOTICE OTHER STONE HOUSES ALONG RIDGE TO THE RIGHT. - Mariscal Quicksilver Mine & Reduction Works, Terlingua, Brewster County, TX

  13. 3. ELLIS WORKS PARTIALLY OBSCURED BY SUBSEQUENT MARISCAL ERA TAILINGS, ...

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

    3. ELLIS WORKS PARTIALLY OBSCURED BY SUBSEQUENT MARISCAL ERA TAILINGS, LOOKING SOUTH, SOUTHWEST. SAME VIEW AS HISTORICAL PHOTOGRAPH, BUREAU OF MINES BULLETIN 222. - Mariscal Quicksilver Mine & Reduction Works, Terlingua, Brewster County, TX

  14. VIEW OF TWO ROOM STONE STRUCTURES BELOW ELLIS WORKS TAILINGS, ...

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

    VIEW OF TWO ROOM STONE STRUCTURES BELOW ELLIS WORKS TAILINGS, ALONG ACCESS ROAD TO SITE LOOKING NORTHWEST. NOTICE OTHER STONE HOUSES ALONG RIDGE TO THE RIGHT. - Mariscal Quicksilver Mine & Reduction Works, Terlingua, Brewster County, TX

  15. ELLIS WORKS PARTIALLY OBSCURED BY SUBSEQUENT MARISCAL ERA TAILINGS, LOOKING ...

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

    ELLIS WORKS PARTIALLY OBSCURED BY SUBSEQUENT MARISCAL ERA TAILINGS, LOOKING SOUTH, SOUTHWEST. SAME VIEW AS HISTORICAL PHOTOGRAPH, BUREAU OF MINES BULLETIN 222. - Mariscal Quicksilver Mine & Reduction Works, Terlingua, Brewster County, TX

  16. Ellis-van Creveld syndrome. Case report and literature review.

    PubMed

    Alves-Pereira, Daniela; Berini-Aytés, Leonardo; Gay-Escoda, Cosme

    2009-07-01

    Ellis-van Creveld syndrome is a genetic disorder that was first described by Richard Ellis and Simon van Creveld in 1940. The four principal characteristics are chondrodysplasia, polydactyly, ectodermal dysplasia and congenital heart defects. The orofacial manifestations include multiple gingivolabial musculofibrous fraenula, dental anomalies, hypodontia and malocclusion. The disease can be diagnosed at any age, even during pregnancy. The differentiation should be made between Jeune syndrome and other orofaciodigital syndromes.

  17. Magnetoplasmadynamcis - Portrait of Macon C. 'Mike' Ellis, Jr

    NASA Technical Reports Server (NTRS)

    1962-01-01

    Portrait of Macon C. 'Mike' Ellis, Jr. James Hansen described Mike Ellis as 'the first and only person to be in charge of Langley's Magnetoplasmadynamcis (MPD) Branch.' He was 'an NACA veteran who was 42 years old when the branch was organized. Ellis had come to work at Langley in 1939, and over the course of his career at the laboratory, he had been involved in pioneering work on the aerodynamics of jet engines, ramjets, and supersonic inlets and nozzles. Fittingly, Ellis had worked for Eastman Jacobs and with Arthur Kantrowitz in the early 1940s, and he had heard firsthand accounts of his former colleagues' attempts to design a fusion reactor in the spring of 1938. By the late 1950s, Ellis was one of Langley's most outspoken believers in MPD's promise of technological benefits. Ellis encouraged Floyd Thompson's enthusiasm for MPD and persuaded Langley's senior staff of mostly engineers that MPD was a field of research vital to the future of NASA. When the time came to pick someone to head the new branch, Ellis was unquestionably the person for the job. 'Ellis was no extraordinary 'scientific brain.' As an aeronautical engineer, his talents were quite respectable, but he possessed no special competency in the physics of fluids beyond his experience in aerodynamics or gas dynamics. He was always the first to admit that the complexities of plasma physics and MPD were such that 'there was no way' that he personally could conduct basic MPD research. That challenge he would leave to minds more suited for it. But Ellis could bring the MPD researchers together as a unit, serve as their strong external advocate, shield them from front-office pressures, and make sure that they received the support they needed to carry out their work. 'I just tried to keep my head above water,' Ellis explains, 'and keep these *mad scientists' from going off on too many tangents, or going mad myself.' Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From

  18. Sulfuryl fluoride as a quarantine treatment for Chlorophorus annularis (Coleoptera: Cerambycidae) in Chinese bamboo poles.

    PubMed

    Yu, Daojian; Barak, Alan V; Jiao, Yi; Chen, Zhinan; Zhang, Guiming; Chen, Zhilin; Kang, Lin; Yang, Weidong

    2010-04-01

    Bamboo (genera Bambusa and Phyllstachys) is one of the fastest growing and economically important plants in the world, and it is cultivated widely throughout southern China. China annually exports to the United States significant quantities of bamboo garden stakes (Bambusa spp.). In recent years, Plant Protection and Quarantine officers of the U.S. Department of Agriculture-Animal and Plant Health Inspection Service have made numerous interceptions of the bamboo borer, Chlorophorus annularis Fairmaire (Coleoptera: Cerambycidae), in bamboo products from China. This species is considered to have high pest risk potential in the trade of bamboo products. As a fumigant, sulfuryl fluoride (SF) would be a practical alternative to methyl bromide (MeBr) fumigation. Here, we report the results of SF fumigation tests for C. annularis in bamboo poles at three doses--96 g/m3 at 15.9 degrees C, 80 g/m3 at 21.5 degrees C, and 64 g/m3 at 26.0 degrees C--in glass test chambers. Commercial standard fumigations were also conducted in a standard 6.1-m-long, 33.2-m3 (standard height, 20-feet) marine general cargo container loaded to 80% (vol:vol) with similar bamboo poles, and sufficient levels of SF were obtained during the 24-h fumigations. During the course of these tests, 2424 larvae, 90 pupae, and 23 adults in total were killed, with no survivors. A treatment schedule using SF is proposed for bamboo as an alternative to MeBr at several temperatures tested.

  19. 77 FR 66979 - Ellis Road/American Electric Corporation, Jacksonville, Duval County, FL, Notice of Settlement

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-08

    ... Ms. Paula V. Painter. Submit your comments by Site name Ellis Road/American Electric Corporation Site... over 80 settling parties at the Ellis Road/American Electric Corporation Superfund Site located...

  20. The action potential of Dionaea muscipula Ellis.

    PubMed

    Hodick, D; Sievers, A

    1988-04-01

    The intention of this investigation was to acquire more concise information about the nature of the action potential of Dionaea muscipula Ellis and the different types of cells generating and conducting it. It is shown by microelectrode measurements that, besides the sensory cells, all the major tissues of the trap lobes are excitable, firing action potentials with pronounced after-hyperpolarizations. The action potentials are strictly dependent on Ca(2+). Their peak depolarizations are shifted 25-27 mV in a positive direction after a tenfold increase in external Ca(2+) concentration. Perfusions with 1 mM ethylene glycol-bis(β-aminoethyl ether)-N,N,N',N'-tetraacetic acid (EGTA) or 1 mM LaCl3 completely inhibit excitability. Magnesium ions only slightly affect the peak depolarizations but considerably prolong action potentials. Sodium azide and 2,4-dinitrophenol also abolish excitation, probably by reducing the intracellular ATP concentration. Furthermore, it is tested whether the sensory cells can be distinguished from the other cells of the trap by their electrical behaviour. The resting potentials of sensory cells (-161±7 mV) and mesophyll cells (-155±8 mV) are of the same magnitude. Changes in external ion concentrations affect resting and action potentials in both cell types in a similar way. Additional freeze-fracture studies of both cell types reveal similar numbers and distributions of intramembrane particles on the fracture faces of the plasma membrane, which is most likely the mechanosensor. These findings stress the view that the high mechanosensitivity of the sensory hair results from its anatomy and not from a specialized perception mechanism. It is proposed that trap closure is triggered by a rise in the cytoplasmic concentration of Ca(2+) or a Ca(2+)-activated regulatory complex, which must exceed a threshold concentration. Since the Ca(2+) influx during a single action potential does not suffice to reach this threshold, at least two stimulations

  1. Floodplains within reservoirs promote earlier spawning of white crappies Pomoxis annularis

    USGS Publications Warehouse

    Miranda, Leandro E.; Dagel, Jonah D.; Kaczka, Levi J.; Mower, Ethan; Wigen, S. L.

    2015-01-01

    Reservoirs impounded over floodplain rivers are unique because they may include within their upper reaches extensive shallow water stored over preexistent floodplains. Because of their relatively flat topography and riverine origin, floodplains in the upper reaches of reservoirs provide broad expanses of vegetation within a narrow range of reservoir water levels. Elsewhere in the reservoir, topography creates a band of shallow water along the contour of the reservoir where vegetation often does not grow. Thus, as water levels rise, floodplains may be the first vegetated habitats inundated within the reservoir. We hypothesized that shallow water in reservoir floodplains would attract spawning white crappies Pomoxis annularis earlier than reservoir embayments. Crappie relative abundance over five years in floodplains and embayments of four reservoirs increased as spawning season approached, peaked, and decreased as fish exited shallow water. Relative abundance peaked earlier in floodplains than embayments, and the difference was magnified with higher water levels. Early access to suitable spawning habitat promotes earlier spawning and may increase population fitness. Recognition of the importance of reservoir floodplains, an understanding of how reservoir water levels can be managed to provide timely connectivity to floodplains, and conservation of reservoir floodplains may be focal points of environmental management in reservoirs.

  2. Havelock Ellis's literary criticism, canon formation, and the heterosexual Shakespeare.

    PubMed

    Radel, Nicholas F

    2009-01-01

    Famous as the author of an early full-length scientific study of sexual inversion or homosexuality, English sexologist Havelock Ellis was also a literary critic responsible for initiating publication of the famous Mermaid Series of "The Best of Plays of the Old Dramatists" in the late-nineteenth century. Personally editing the first volume of plays by Christopher Marlowe and a later collection by tragedian John Ford, Ellis associated these playwrights here and in his scientific work, Sexual Inversion, with ideas about normative and so-called abnormal sexualities at the start of the twentieth century. Ellis, thus, helped give expression to a literary canon of early English dramatists in which modern, anachronistic ideas about sexual subjectivity play a part. While this article does not claim that Ellis was the necessary source for later criticism, it shows how, over the whole of the twentieth century, Shakespeare's priority in the literary canon came to be posited at least in part on his apparent sexual normality in contrast with a supposedly homosexual Christopher Marlowe and other playwrights such as Ford or Francis Beaumont and John Fletcher associated with varying degrees of sexual difference.

  3. Courseware Reviews: ELLIS Opens a Doorway to English.

    ERIC Educational Resources Information Center

    Crawford, William

    1994-01-01

    Overviews ELLIS, a computer software program that is an individualized English language learning system using computer technology to integrate video disk, CD-ROM, and computer storage to display and manipulate video, audio, text, and graphic information. Although its strength lies in its individual multimedia approach to language learning, ELLIS…

  4. Ellis Island and the Peopling of America: The Official Guide.

    ERIC Educational Resources Information Center

    Yans-McLaughlin, Virginia; Lightman, Marjorie

    This guide book helps to place the Ellis Island Museum (New York) and site within the context of the worldwide, continuing history of immigration. The guide views immigration as a continuing social process that brings people from one part of the world to another where they contribute the richness of their labor to their newly adopted home. Ethnic…

  5. In vitro antioxidant activity of polysaccharide from Gardenia jasminoides ellis

    USGS Publications Warehouse

    Fan, Y.; Ge, Z.; Luo, A.

    2011-01-01

    A water-soluble polysaccharide, GP, was isolated from Gardenia jasminoides Ellis through hot water extraction followed by ethanol precipitation. The in vitro free radicals scavenging tests exhibited that GP has significant scavenging abilities especially for ABTS, DPPH, and hydroxyl radicals, which suggests that the polysaccharide GP is a novel antioxidant. ?? 2011 Academic Journals.

  6. Let's Nuke the Transpersonalists: A Response to Albert Ellis.

    ERIC Educational Resources Information Center

    Wilber, Ken

    1989-01-01

    Responds to Albert Ellis' 1986 article which proposed to use rational-emotive therapy (RET) to save the world from religious and psychological fanatics and nuclear war. Attempts to provide a more balanced view of religion, RET, non-RET therapies, and the role of psychology in averting nuclear war. (Author/ABL)

  7. Oral abnormalities in the Ellis-van Creveld syndrome.

    PubMed

    Babaji, Prashant

    2010-01-01

    Ellis-van Creveld (EvC) syndrome is an autosomal recessive disorder, mainly affecting the ectodermal components such as, enamel, nail, and hair. The gene for EvC syndrome is located on chromosome 4p16. Patients with EvC syndrome characteristically presents with congenitally missing teeth, abnormal frenal attachment, microdontia, and hexadactyly.

  8. Albert Ellis Revisited: Vague, General or Mild Religion.

    ERIC Educational Resources Information Center

    Floyd, William A.

    1984-01-01

    Discusses the writings of Albert Ellis dealing with religion and psychotherapy. Advocates a liberal form of theism in which (1) the use of symbolism and ritual are stressed; (2) faith is taken seriously but not as history or science; and (3) the importance of theology is affirmed. (JAC)

  9. Gravity-Driven Thin Film Flow of an Ellis Fluid.

    PubMed

    Kheyfets, Vitaly O; Kieweg, Sarah L

    2013-12-01

    The thin film lubrication approximation has been studied extensively for moving contact lines of Newtonian fluids. However, many industrial and biological applications of the thin film equation involve shear-thinning fluids, which often also exhibit a Newtonian plateau at low shear. This study presents new numerical simulations of the three-dimensional (i.e. two-dimensional spreading), constant-volume, gravity-driven, free surface flow of an Ellis fluid. The numerical solution was validated with a new similarity solution, compared to previous experiments, and then used in a parametric study. The parametric study centered around rheological data for an example biological application of thin film flow: topical drug delivery of anti-HIV microbicide formulations, e.g. hydroxyethylcellulose (HEC) polymer solutions. The parametric study evaluated how spreading length and front velocity saturation depend on Ellis parameters. A lower concentration polymer solution with smaller zero shear viscosity (η0), τ1/2, and λ values spread further. However, when comparing any two fluids with any possible combinations of Ellis parameters, the impact of changing one parameter on spreading length depends on the direction and magnitude of changes in the other two parameters. In addition, the isolated effect of the shear-thinning parameter, λ, on the front velocity saturation depended on τ1/2. This study highlighted the relative effects of the individual Ellis parameters, and showed that the shear rates in this flow were in both the shear-thinning and plateau regions of rheological behavior, emphasizing the importance of characterizing the full range of shear-rates in rheological measurements. The validated numerical model and parametric study provides a useful tool for future steps to optimize flow of a fluid with rheological behavior well-described by the Ellis constitutive model, in a range of industrial and biological applications.

  10. The Effect of Filamentous Turf Algal Removal on the Development of Gametes of the Coral Orbicella annularis

    PubMed Central

    Cetz-Navarro, Neidy P.; Carpizo-Ituarte, Eugenio J.; Espinoza-Avalos, Julio; Chee-Barragán, Guillermina

    2015-01-01

    Macroalgae and filamentous turf algae (FTA) are abundant on degraded coral reefs, and the reproductive responses of corals may indicate sub-lethal stress under these conditions. The percentage of gametogenic stages (PGS) and the maximum diameter of eggs (MDE; or egg size) of Orbicella annularis were used to evaluate the effect of long- (7–10 months) and short-term (2.5 months) FTA removal (treatments T1 and T2, respectively) at both the beginning (May) and the end (August) of gametogenesis. Ramets (individual lobes of a colony) surrounded by FTA (T3) or crustose coralline algae (CCA; T4) were used as controls. The removal of FTA enhanced the development of gametes (i.e., a larger and higher percentage of mature gametes (PMG)) of O. annularis for T1 vs. T3 ramets in May and T1 and T2 vs. T3 ramets in August. Similar values of PGS and MDE between gametes from T3 and T4 in both May and August were unexpected because a previous study had shown that the same ramets of T4 (with higher tissue thickness, chlorophyll a cm-2 and zooxanthellae density and lower mitotic index values) were less stressed than ramets of T3. Evaluating coral stress through reproduction can reveal more sensitive responses than other biological parameters; within reproductive metrics, PGS can be a better stress indicator than egg size. The presence of turf algae strongly impacted the development of gametes and egg size (e.g., PMG in ramets with FTA removal increased almost twofold in comparison with ramets surrounded by FTA in August), most likely exerting negative chronic effects in the long run due to the ubiquity and permanence of turf algae in the Caribbean. These algae can be considered a stressor that affects coral sexual reproduction. Although the effects of turf algae on O. annularis are apparently less severe than those of other stressors, the future of this species is uncertain because of the combined impacts of these effects, the decline of O. annularis populations and the almost

  11. Gravitational Microlensing by Ellis Wormhole: Second Order Effects

    NASA Astrophysics Data System (ADS)

    Lukmanova, Regina; Kulbakova, Aliya; Izmailov, Ramil; Potapov, Alexander A.

    2016-11-01

    Gravitational lensing is the effect of light bending in a gravitational field. It can be used as a possible observational method to detect or exclude the existence of wormholes. In this work, we extend the work by Abe on gravitational microlensing by Ellis wormhole by including the second order deflection term. Using the lens equation and definition of Einstein radius, we find the angular locations of the physical image inside and outside Einstein ring. The work contains a comparative analysis of light curves between the Schwarzschild black hole and the Ellis wormhole that can be used to distinguish such objects though such distinctions are too minute to be observable even in the near future. We also tabulate the optical depth and event rate for lensing by bulge and Large Magellanic Cloud (LMC) stars.

  12. Symbiodinium biogeography tracks environmental patterns rather than host genetics in a key Caribbean reef-builder, Orbicella annularis

    PubMed Central

    Tonk, Linda; Chollett, Iliana; Ortiz, Juan-Carlos; Dove, Sophie; Hoegh-Guldberg, Ove; Mumby, Peter J.

    2016-01-01

    The physiological performance of a reef-building coral is a combined outcome of both the coral host and its algal endosymbionts, Symbiodinium. While Orbicella annularis—a dominant reef-building coral in the Wider Caribbean—is known to be a flexible host in terms of the diversity of Symbiodinium types it can associate with, it is uncertain how this diversity varies across the Caribbean, and whether spatial variability in the symbiont community is related to either O. annularis genotype or environment. Here, we target the Symbiodinium-ITS2 gene to characterize and map dominant Symbiodinium hosted by O. annularis at an unprecedented spatial scale. We reveal northwest–southeast partitioning across the Caribbean, both in terms of the dominant symbiont taxa hosted and in assemblage diversity. Multivariate regression analyses incorporating a suite of environmental and genetic factors reveal that observed spatial patterns are predominantly explained by chronic thermal stress (summer temperatures) and are unrelated to host genotype. Furthermore, we were able to associate the presence of specific Symbiodinium types with local environmental drivers (for example, Symbiodinium C7 with areas experiencing cooler summers, B1j with nutrient loading and B17 with turbidity), associations that have not previously been described. PMID:27807263

  13. Developmental stages of the climbing gecko Tarentola annularis with special reference to the claws, pad lamellae, and subdigital setae.

    PubMed

    Khannoon, Eraqi R

    2015-07-01

    Studying the in ovo mode of development of squamates has the advantage of allowing easy access to embryos without surgically compromising gravid females. Despite the non-ophidian squamates being a very diverse lineage of reptiles, embryonic tables for individuals of this group are very few. Here, I present the first in ovo embryonic table for a basal multi-scansored, pad-bearing gecko, Tarentola annularis. In this gecko, only the III and IV digits bear claws. Eleven embryonic stages are described based on chronological development of morphological characteristics. In contrast to other previously studied geckos, this species exhibits a longer incubation period. Comparison with other squamates, embryonic development of T. annularis is an indicative of a conserved developmental strategy. Interestingly, the clawless digits of this gecko do exhibit claws during the first half of embryonic development. Thus, regression of claws in these digits could be an advantage of studying this particular taxon, as it raises the question, to be answered in future study, of which mechanisms could be responsible for such claw regression. Before hatching, the outer periderm layer sloughs revealing the functional setae. The present study provides not only a model for pentadactyl limbs and digit development, but also an example of a unique developmental phenomenon, as represented by claw regression.

  14. The future of coral reefs in the US Virgin Islands: is Acropora palmata more likely to recover than Montastraea annularis complex?

    USGS Publications Warehouse

    Rogers, Caroline S.; Muller, Erinn; Spitzack, Tony; Miller, Jeff

    2008-01-01

    Coral diseases have played a major role in the degradation of coral reefs in the Caribbean, including those in the US Virgin Islands (USVI). In 2005, bleaching affected reefs throughout the Caribbean, and was especially severe on USVI reefs. Some corals began to regain their color as water temperatures cooled, but an outbreak of disease (primarily white plague) led to losses of over 60% of the total live coral cover. Montastraea annularis, the most abundant coral, was disproportionately affected, and decreased in relative abundance. The threatened species Acropora palmata bleached for the first time on record in the USVI but suffered less bleaching and less mortality from disease than M. annularis. Acropora palmata and M. annularis are the two most significant species in the USVI because of their structural role in the architecture of the reefs, the large size of their colonies, and their complex morphology. The future of the USVI reefs depends largely on their fate. Acropora palmata is more likely to recover than M. annularis for many reasons, including its faster growth rate, and its lower vulnerability to bleaching and disease.

  15. Rational Emotive Behavioural Therapy: The Evolution of a Revolution: Interview With Dr. Debbie Joffe Ellis, Work Partner and Wife of Dr. Albert Ellis, the Creator of REBT.

    PubMed

    Ellis, Debbie Joffe; Rovira, Montse

    2015-02-01

    Recognized as one of the most influential thinkers and psychologists, Albert Ellis PhD (1913-2007) revolutionized Psychology when he created the first cognitive psychotherapy, Rational Emotive Behavioral Therapy. After he passed away, Dr. Debbie Joffe Ellis continues spreading his legacy around the world. Psychologist, lecturer, writer, trainer, she dedicates her life to disseminate REBT and extend it through different statements, from the social to the educational, from the academic to the clinical. In this interview, she goes through her own history and her husband's one, bringing us closer to understanding Albert Ellis as the leading figure in his field, and the oneness they experienced through their professional and personal relationship.

  16. ESTCP Munitions Response: Live Site Demonstration Former Camp Ellis

    DTIC Science & Technology

    2014-07-01

    encompassed 17,455 acres and had more than 2,300 buildings, 1,100 of which were coal- heated barracks. Camp Ellis trained a wide variety of soldiers for...1 – The coordinates are provided in UTM Zone 15N World Geodetic System 84, with units of meters. Figure 5-2: IVS Layout All items were...following benefits:  The forklift had a heated cab in which the field technician sat during data collection. CEMR was conducted in winter, so the

  17. Deflection angle of light in an Ellis wormhole geometry

    NASA Astrophysics Data System (ADS)

    Nakajima, Koki; Asada, Hideki

    2012-05-01

    We reexamine the light deflection by an Ellis wormhole. The bending angle as a function of the ratio between the impact parameter and the throat radius of the wormhole is obtained in terms of a complete elliptic integral of the first kind. This result immediately yields asymptotic expressions in the weak field approximation. It is shown that an expression for the deflection angle derived (and used) in recent papers is valid at the leading order but it breaks down at the next order because of the nontrivial spacetime topology.

  18. Chemical constituents from the fruits of Gardenia jasminoides Ellis.

    PubMed

    Yu, Yang; Feng, Xiao-Lin; Gao, Hao; Xie, Zuo-Lei; Dai, Yi; Huang, Xiao-Jun; Kurihara, Hiroshi; Ye, Wen-Cai; Zhong, Yi; Yao, Xin-Sheng

    2012-04-01

    A new lignan glucoside, (+)-(7S,8R,8'R)-lyoniresinol 9-O-β-D-(6″-O-trans-sinapoyl)glucopyranoside (1), and a new iridoid glucoside, 10-O-trans-sinapoylgeniposide (2), together with eight known compounds, were isolated from the fruits of Gardenia jasminoides Ellis. The structures of the isolates were elucidated by extensive spectroscopic studies, including UV, IR, 1D and 2D NMR, ESI-MS, HR-ESI-MS, and CD experiments. The short-term-memory-enhancement activities of some compounds were evaluated on an Aβ transgenic drosophila model.

  19. Ellis-van Creveld Syndrome with Sagittal Craniosynostosis.

    PubMed

    Fischer, Andrew S; Weathers, William M; Wolfswinkel, Erik M; Bollo, Robert J; Hollier, Larry H; Buchanan, Edward P

    2015-06-01

    Ellis-van Creveld syndrome (EVC) is a rare disorder (the incidence is estimated at around 7/1,000,000) characterized by the clinical tetrad of chondrodystrophy, polydactyly, ectodermal dysplasia, and cardiac anomalies. Sagittal synostosis is characterized by a dolichocephalic head shape resulting from premature fusion of the sagittal suture. Both are rare disorders, which have never been reported together. We present a case of EVC and sagittal synostosis. We report the clinical features of a Hispanic boy with EVC and sagittal craniosynostosis who underwent cranial vault remodeling. The presentation of this patient is gone over in detail. A never before reported case of EVC and sagittal synostosis is presented in detail.

  20. Ellis-van Creveld syndrome: A rare clinical entity

    PubMed Central

    Kamal, Reet; Dahiya, Parveen; Kaur, Simerpreet; Bhardwaj, Rohit; Chaudhary, Karun

    2013-01-01

    Ellis-van Creveld (EVC) syndrome is a genetic disorder with autosomal recessive transmission, which may clinically present as small stature, short limbs, fine sparse hair, hypoplastic fingernails, multiple musculofibrous frenula, conical teeth, hypoplasia of the enamel, hypodontia, and malocclusion. Heart defects, especially abnormalities of atrial septation, have been found in about 60% of cases. The mutation in EVC and EVC2 gene is responsible for this syndrome. The presence of multiple orodental findings makes this syndrome important for dentists. The aim of this article is to present a rare case of EVC syndrome in a 10-year-old girl along with the review of literature. PMID:23798848

  1. Ellis-van Creveld syndrome with facial hemiatrophy.

    PubMed

    Bhat, Yasmeen J; Baba, Asif Nazir; Manzoor, Sheikh; Qayoom, Seema; Javed, Sheikh; Ajaz, Hakeem

    2010-01-01

    Ellis-van Creveld (EVC) syndrome is a rare autosomal recessive congenital disorder characterized by chondrodysplasia and polydactyly, ectodermal dysplasia and congenital defects of the heart. We present here a case of a 16-year-old short-limbed dwarf with skeletal deformities and bilateral postaxial polydactyly, dysplastic nails and teeth, also having left-sided facial hemiatrophy. The diagnosis of EVC syndrome was made on the basis of clinical and radiological features. To the best of our knowledge, this is the first report of EVC syndrome with facial hemiatrophy in the medical literature from India.

  2. Ellis-van Creveld syndrome: A rare clinical entity.

    PubMed

    Kamal, Reet; Dahiya, Parveen; Kaur, Simerpreet; Bhardwaj, Rohit; Chaudhary, Karun

    2013-01-01

    Ellis-van Creveld (EVC) syndrome is a genetic disorder with autosomal recessive transmission, which may clinically present as small stature, short limbs, fine sparse hair, hypoplastic fingernails, multiple musculofibrous frenula, conical teeth, hypoplasia of the enamel, hypodontia, and malocclusion. Heart defects, especially abnormalities of atrial septation, have been found in about 60% of cases. The mutation in EVC and EVC2 gene is responsible for this syndrome. The presence of multiple orodental findings makes this syndrome important for dentists. The aim of this article is to present a rare case of EVC syndrome in a 10-year-old girl along with the review of literature.

  3. 75 FR 38768 - Rehabilitation of Floodwater Retarding Structure No. 10 of the Mountain Creek Watershed, Ellis...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-06

    ... Floodwater Retarding Structure No. 10 of the Mountain Creek Watershed, Ellis County, TX AGENCY: Natural.... 10 of the Mountain Creek Watershed, Ellis County, Texas. FOR FURTHER INFORMATION CONTACT: Donald W... project. The project will rehabilitate Floodwater Retarding Structure No. 10 to maintain the present...

  4. A case of isotretinoin-induced purpura annularis telangiectodes of Majocchi and review of substance-induced pigmented purpuric dermatosis.

    PubMed

    Kaplan, Rachel; Meehan, Shane A; Leger, Marie

    2014-02-01

    IMPORTANCE Medications as well as chemical and food exposures have been causally linked to the development of pigmented purpuric dermatosis (PPD). We describe herein what is to our knowledge the first reported case of isotretinoin-induced PPD. OBSERVATIONS A woman in her 30s presented with purpura annularis telangiectodes of Majocchi on the lower extremities 2 months after initiating isotretinoin for the treatment of refractory nodulocystic acne. CONCLUSIONS AND RELEVANCE We believe isotretinoin was the most likely causative agent in this case because the lesions began after initiation of isotretinoin treatment and resolved shortly after its termination, and the pathologic findings were consistent with other described cases of drug-induced PPD. The lesions have continued to fade, and no new lesions have developed in a 3-month follow-up period. Drug-induced PPD is distinct from idiopathic PPD, and it is important to consider isotretinoin as a potential inciting agent.

  5. Ellis-van Creveld Syndrome: Mutations Uncovered in Lebanese Families.

    PubMed

    Valencia, Maria; Tabet, Lara; Yazbeck, Nadine; Araj, Alia; Ruiz-Perez, Victor L; Charaffedine, Khalil; Fares, Farah; Badra, Rebecca; Farra, Chantal

    2015-01-01

    Background. Ellis-van Creveld (EvC) syndrome is a rare, autosomal recessive disorder characterized by short stature, short limbs, growth retardation, polydactyly, and ectodermal defects with cardiac anomalies occurring in around 60% of cases. EVC syndrome has been linked to mutations in EVC and EVC2 genes. Case Presentation. We report EvC syndrome in two unrelated Lebanese families both having homozygous mutations in the EVC2 gene, c.2653C>T (p.(Arg885(*))) and c.2012_2015del (p.(Leu671(*))) in exons 15 and 13, respectively, with the latter being reported for the first time. Conclusion. Although EvC has been largely described in the medical literature, clinical features of this syndrome vary. While more research is required to explore other genes involved in EvC, early diagnosis and therapeutic care are important to achieve a better quality of life.

  6. Ellis-van Creveld syndrome: a case report.

    PubMed

    Shah, B; Ashok, L; Sujatha, G P

    2008-01-01

    Ellis-van Creveld syndrome (EvC) is a disease complex, where all the three embryonic layers appear to be involved. This disorder is also called as Chondroectodermal dysplasia. EvC is an autosomal recessive disorder resulting from mutations in these patients. Mutations in the two genes EVC and EVC2, have been identified to cause the condition. It has been considered as a skeletal dysplasia with an incidence of approximately 1 out of 1,50,000 live births. A high prevalence has been reported among certain populations like Amish and Arabs of Gaza strip. There are more than 300 cases of EvC reported into the literature. About 50-60% of cases have been reported with congenital cardiac malformations.

  7. Rational emotive therapy-a study of initial therapy sessions of Albert Ellis.

    PubMed

    Becker, I M; Rosenfeld, J G

    1976-10-01

    Because psychotherapy is what a therapist does, and not necessarily what he says he does, it is important to observe the activity of leaders in the field during their sessions. Twenty taped initial psychotherapy sessions by Albert Ellis were selected randomly from 70 recently recorded ones. Typescripts of each session were made, and two raters naive to the purposes were trained to place each of Ellis' statements into 1 of 17 categories. Each category consisted of a therapeutic technique. Some of these were ones that Ellis did during the 20 sessions examined was related very closely to what he has claimed to do, but that he did vary considerably from client to client.

  8. Development of Regulatory Processes in the Symbiosis Between the Sea Anemone Aiptasia pallida and its Dinoflagellate Symbionts

    DTIC Science & Technology

    1994-09-01

    In a preliminary study, we obtained samples of the coral Montastrea annularis from the Florida Keys which had been bleaching (losing symbionts) for a...period of two months. Normal tissue from this coral stimulated FIZ to release 15.30% ± 0.20% (n = 2), while bleached tissue effected a release of...aposymbiotic Aiptasia pallida and the reef coral Montastrea annularis. (Cook and Orlandini, in prep.) The effects of symbiosis on the responses of the al.ae

  9. Growth charts for children with Ellis-van Creveld syndrome.

    PubMed

    Verbeek, Sabine; Eilers, Paul H C; Lawrence, Kate; Hennekam, Raoul C M; Versteegh, Florens G A

    2011-02-01

    Ellis-van Creveld (EvC) syndrome is a congenital malformation syndrome with marked growth retardation. In this study, specific growth charts for EvC patients were derived to allow better follow-up of growth and earlier detection of growth patterns unusual for EvC. With the use of 235 observations of 101 EvC patients (49 males, 52 females), growth charts for males and females from 0 to 20 years of age were derived. Longitudinal and cross-sectional data were collected from an earlier review of growth data in EvC, a database of EvC patients, and from recent literature. To model the growth charts, the GAMLSS package for the R statistical program was used. Height of EvC patients was compared to healthy children using Dutch growth charts. Data are presented both on a scale for age and on a scale for the square root of age. Compared to healthy Dutch children, mean height standard deviation score values for male and female EvC patients were -3.1 and -3.0, respectively. The present growth charts should be useful in the follow-up of EvC patients. Most importantly, early detection of growth hormone deficiency, known to occur in EvC, will be facilitated.

  10. Decade-Scale Trend in Sea Water Salinity Revealed through d18O Analysis of Montastraea Annularis Annual Growth Bands

    USGS Publications Warehouse

    Halley, Robert B.; Swart, Peter K.; Dodge, Richard E.; Hudson, J. Harold

    1994-01-01

    Stable oxygen isotope ratios (18O) of coral skeletons are influenced by ambient water temperature and by the oxygen isotope ratio in the surrounding sea water, which, in turn, is linked to evaporation (salinity) and precipitation. To investigate this relationship more thoroughly, we collected hourly temperature data from the Hen and Chickens Reef in the Florida Keys between 1975 and 1988 and compared them to the 18O of Montastraea annularis skeleton that grew during the same interval. To ensure that we obtained the correct oxygen isotopic range in the skeleton we typically sampled the coral at a resolution of 20-30 samples in 1 year; in 1 year we sampled the coral at a resolution of 70 samples x year-1. Despite our high-resolution sampling, we were unable to obtain the full temperature-induced 18O range in the skeleton. Our data suggest that, during the summer, evaporation causes isotopic enrichment in the water, partially masking the temperature-induced signal. Our data also show that oxygen isotopic composition of seawater at the reef has increased since 1981. This increase indicates that salinity has increased slightly during the past decade, perhaps as a result of increased evaporation in waters of Florida Bay and the Keys. This phenomenon is probably not caused by a decrease in the outflow of freshwater into Florida Bay from the Everglades but may be related to the measured deficit in precipitation that has occurred over the past decade.

  11. Welcome Home Annie: Rethinking Ellis Island and Annie Moore in the Classroom

    ERIC Educational Resources Information Center

    Mercurio, Mia

    2008-01-01

    The story of the United States and the people who have made it their home would not be complete without considering the experience of Irish immigrants--particularly the experience of Annie Moore, the first immigrant to be processed on Ellis Island. However, the story of Annie Moore, and how it has been recounted and taught to date, is inaccurate.…

  12. Overgeneralization from a Narrow Focus: A Response to Ellis et al. (2008) and Bitchener (2008)

    ERIC Educational Resources Information Center

    Xu, Cuiqin

    2009-01-01

    This paper presents a critical analysis of two recent studies on error correction, Ellis, Sheen, Murakami, and Takashima (2008) and Bitchener (2008) and argues that neither study constitutes evidence for error correction based on discussion of the comparability of participants, design issues, and analysis flaws in both studies. The paper further…

  13. Ellis van Creveld Syndrome (EVCS) in an Iranian, Three-Year-old Girl: A Case Report.

    PubMed

    Ehsan, Alaee; Ali, Shirafkan; Reihane, Hasheminejad; Deilami, Tourisa; Kia, Alireza

    2014-10-01

    Ellis van Creveld syndrome (EVCS) is mainly characterized by dysplatic changes in skeletal structures along with variable inter- and intra-familial patterns. Shortening of bony structures such as ribs and limbs, postaxial polydactyly, and dysplastic teeth and nails are among the clinical presentation of this autosomal recessive disease.

  14. The Importance of Voice in Supervision: A Response to Ellis and Robbins (1993) and Bernstein (1993).

    ERIC Educational Resources Information Center

    Twohey, Denise

    1993-01-01

    Comments two responses to author's article "Listening for the Voices of Care and Justice in Counselor Supervision" (Twohey and Volker, 1993). Responds to Ellis and Robbins (1993) by clarifying perspective on relationship between moral decision making and supervision. Takes issue with Bernstein's (1993) comments about superiority of instrumental…

  15. Productive and Reproductive Work on the Family Farm: Changes Among Ethnic Groups in Ellis County, Kansas.

    ERIC Educational Resources Information Center

    Flora, Cornelia Butler; Stitz, John

    This report is based on data obtained from historical documents, quantitative analysis of state agricultural censuses for 1885, 1895, and 1905, and interviews with farm women of Volga and German heritages, aged 14 to 87. The participation of women in wheat-based farming systems in Ellis County, Kansas, is examined as related to the ethnic…

  16. Re-Imagining Possibilities: Honoring the Work of Carolyn Ellis and Art Bochner

    ERIC Educational Resources Information Center

    Santoro, Patrick; Boylorn, Robin M.

    2008-01-01

    As co-chairs of a tribute panel for their academic mentors, Carolyn Ellis and Art Bochner, the authors knew what the traditional responsibilities would require, but as a performer and a poet, they were inspired to do something more creative. Something poetic. Something performative. Something different. In this article, the authors present a…

  17. Stability and instability of Ellis and phantom wormholes: Are there ghosts?

    NASA Astrophysics Data System (ADS)

    Nandi, K. K.; Potapov, A. A.; Izmailov, R. N.; Tamang, A.; Evans, J. C.

    2016-05-01

    It is concluded in the literature that the Ellis wormhole is unstable under small perturbations and would either decay to the Schwarzschild black hole or expand away to infinity. While this deterministic conclusion of instability is correct, we show that the Ellis wormhole reduces to the Schwarzschild black hole only when the Ellis solution parameter γ assumes a complex value -i . We shall then reexamine the stability of Ellis and phantom wormholes from the viewpoint of local and asymptotic observers by using a completely different approach, viz., we adapt Tangherlini's nondeterministic, prequantal statistical simulation about photon motion in the real optical medium to an effective medium reformulation of motions obtained via Hamilton's optical-mechanical analogy in a gravity field. A crucial component of Tangherlini's idea is the observed increase of momentum of the photons entering a real medium. We show that this fact has a heuristic parallel in the effective medium version of the Pound-Rebka experiment in gravity. Our conclusion is that there is a nonzero probability that Ellis and phantom wormholes could appear stable or unstable depending on the location of observers and on the values of γ , leading to the possibility of ghost wormholes (like ghost stars). The Schwarzschild horizon, however, would always certainly appear to be stable (R =1 , T =0 ) to observers regardless of their location. Phantom wormholes of bounded mass in the extreme limit a →-1 are also shown to be stable just as the Schwarzschild black hole is. We shall propose a thought experiment showing that our nondeterministic results could be numerically translated into observable deterministic signatures of ghost wormholes.

  18. Comparing Bacterial Community Composition between Healthy and White Plague-Like Disease States in Orbicella annularis Using PhyloChip™ G3 Microarrays

    PubMed Central

    Kellogg, Christina A.; Piceno, Yvette M.; Tom, Lauren M.; DeSantis, Todd Z.; Gray, Michael A.; Zawada, David G.; Andersen, Gary L.

    2013-01-01

    Coral disease is a global problem. Diseases are typically named or described based on macroscopic changes, but broad signs of coral distress such as tissue loss or discoloration are unlikely to be specific to a particular pathogen. For example, there appear to be multiple diseases that manifest the rapid tissue loss that characterizes ‘white plague.’ PhyloChip™ G3 microarrays were used to compare the bacterial community composition of both healthy and white plague-like diseased corals. Samples of lobed star coral (Orbicella annularis, formerly of the genus Montastraea [1]) were collected from two geographically distinct areas, Dry Tortugas National Park and Virgin Islands National Park, to determine if there were biogeographic differences between the diseases. In fact, all diseased samples clustered together, however there was no consistent link to Aurantimonas coralicida, which has been described as the causative agent of white plague type II. The microarrays revealed a large amount of bacterial heterogeneity within the healthy corals and less diversity in the diseased corals. Gram-positive bacterial groups (Actinobacteria, Firmicutes) comprised a greater proportion of the operational taxonomic units (OTUs) unique to healthy samples. Diseased samples were enriched in OTUs from the families Corynebacteriaceae, Lachnospiraceae, Rhodobacteraceae, and Streptococcaceae. Much previous coral disease work has used clone libraries, which seem to be methodologically biased toward recovery of Gram-negative bacterial sequences and may therefore have missed the importance of Gram-positive groups. The PhyloChip™data presented here provide a broader characterization of the bacterial community changes that occur within Orbicella annularis during the shift from a healthy to diseased state. PMID:24278181

  19. Comparing bacterial community composition between healthy and white plague-like disease states in Orbicella annularis using PhyloChip™ G3 microarrays

    USGS Publications Warehouse

    Kellogg, Christina A.; Piceno, Yvette M.; Tom, Lauren M.; DeSantis, Todd Z.; Gray, Michael A.; Zawada, David G.; Andersen, Gary L.

    2013-01-01

    Coral disease is a global problem. Diseases are typically named or described based on macroscopic changes, but broad signs of coral distress such as tissue loss or discoloration are unlikely to be specific to a particular pathogen. For example, there appear to be multiple diseases that manifest the rapid tissue loss that characterizes ‘white plague.’ PhyloChip™ G3 microarrays were used to compare the bacterial community composition of both healthy and white plague-like diseased corals. Samples of lobed star coral (Orbicella annularis, formerly of the genus Montastraea [1]) were collected from two geographically distinct areas, Dry Tortugas National Park and Virgin Islands National Park, to determine if there were biogeographic differences between the diseases. In fact, all diseased samples clustered together, however there was no consistent link to Aurantimonas coralicida, which has been described as the causative agent of white plague type II. The microarrays revealed a large amount of bacterial heterogeneity within the healthy corals and less diversity in the diseased corals. Gram-positive bacterial groups (Actinobacteria, Firmicutes) comprised a greater proportion of the operational taxonomic units (OTUs) unique to healthy samples. Diseased samples were enriched in OTUs from the families Corynebacteriaceae, Lachnospiraceae, Rhodobacteraceae, and Streptococcaceae. Much previous coral disease work has used clone libraries, which seem to be methodologically biased toward recovery of Gram-negative bacterial sequences and may therefore have missed the importance of Gram-positive groups. The PhyloChip™ data presented here provide a broader characterization of the bacterial community changes that occur within Orbicella annularis during the shift from a healthy to diseased state.

  20. Search for astrophysical rotating Ellis wormholes with x-ray reflection spectroscopy

    NASA Astrophysics Data System (ADS)

    Zhou, Menglei; Cardenas-Avendano, Alejandro; Bambi, Cosimo; Kleihaus, Burkhard; Kunz, Jutta

    2016-07-01

    Recently, two of us have found numerically rotating Ellis wormholes as solutions of four-dimensional Einstein gravity coupled to a phantom field. In this paper, we investigate possible observational signatures to identify similar objects in the Universe. These symmetric wormholes have a mass and are compact, so they may look like black holes. We study the iron line profile in the x-ray reflection spectrum of a thin accretion disk around rotating Ellis wormholes and we find some specific observational signatures that can be used to distinguish these objects from Kerr black holes. We simulate some observations with XIS/Suzaku assuming typical parameters for a bright active galactic nucleus and we conclude that current x-ray missions cannot apply strong constraints.

  1. Pressure Distribution in a Squeeze Film Spherical Bearing with Rough Surfaces Lubricated by an Ellis Fluid

    NASA Astrophysics Data System (ADS)

    Jurczak, P.; Falicki, J.

    2016-08-01

    In this paper, the solution to a problem of pressure distribution in a curvilinear squeeze film spherical bearing is considered. The equations of motion of an Ellis pseudo-plastic fluid are presented. Using Christensen's stochastic model of rough surfaces, different forms of Reynolds equation for various types of surface roughness pattern are obtained. The analytical solutions of these equations for the cases of externally pressurized bearing and squeeze film bearing are presented. Analytical solutions for the film pressure are found for the longitudinal and circumferential roughness patterns. As a result the formulae expressing pressure distribution in the clearance of bearing lubricated by an Ellis fluid was obtained. The numerical considerations for a spherical bearing are given in detail.

  2. Novel and recurrent EVC and EVC2 mutations in Ellis-van Creveld syndrome and Weyers acrofacial dyostosis.

    PubMed

    D'Asdia, Maria Cecilia; Torrente, Isabella; Consoli, Federica; Ferese, Rosangela; Magliozzi, Monia; Bernardini, Laura; Guida, Valentina; Digilio, Maria Cristina; Marino, Bruno; Dallapiccola, Bruno; De Luca, Alessandro

    2013-02-01

    Ellis van Creveld syndrome and Weyers acrofacial dysostosis are allelic disorders caused by mutations in EVC or EVC2 genes. We illustrate the results of direct analysis of whole EVC and EVC2 genes' coding regions in 32 unrelated families with clinical diagnosis of Ellis van Creveld syndrome and in 2 families with Weyers acrofacial dysostosis. We identified mutations in 27/32 (84%) cases with Ellis van Creveld syndrome and 2/2 cases with Weyers acrofacial dysostosis. Of the Ellis van Creveld syndrome cases, 20/27 (74%) had a mutation in EVC and 7/27 (26%) in EVC2 genes. The two subjects with Weyers acrofacial dysostosis had a heterozygous mutation in the last exon of EVC2. In total, we detected 25 independent EVC and 11 independent EVC2 mutations. Nineteen EVC mutations (19/25, 76%) and 4 EVC2 mutations (4/11, 36%) were novel. Also one EVC2 gene mutation found in Weyers acrofacial dysostosis was novel. In 5 unrelated cases with a clinical diagnosis of Ellis van Creveld syndrome, we did not find any mutation in either EVC or EVC2 genes. Current findings expand the Ellis van Creveld syndrome and Weyers acrofacial dysostosis mutation spectra, and provide further evidence that the last exon of EVC2 gene is a hot spot for Weyers acrofacial dysostosis mutations. Accordingly, EVC2 exon 22 should be analyzed with priority by mutation screening in individuals with a suspected diagnosis of Weyers acrofacial dysostosis.

  3. [From gene to disease; EVC, EVC2, and Ellis-van Creveld syndrome].

    PubMed

    van Hagen, J M; Baart, J A; Gille, J J P

    2005-04-23

    Ellis-van Creveld syndrome is an autosomal recessive disorder characterised by short stature with short limbs, postaxial polydactyly and congenital cardiac defects. The syndrome can be caused by mutations in the EVC gene or the EVC2 gene. The genes are located close to each other in a head-to-head configuration on chromosome 4p16. Clinical diagnosis can be confirmed by DNA analysis, which is currently offered by two laboratories in Italy.

  4. Late survival in Ellis-van Creveld syndrome - a case report.

    PubMed

    Mishra, Trinath; Routray, Satya N; Das, Biswajit

    2012-01-01

    Ellis-van Creveld syndrome (EVC) is an autosomal recessive disorder characterized by chondrodystrophy, polydactyly, ectodermal dysplasia, and cardiac anomalies. Acromelic shortening of upper and lower limbs, genu valgum, multiple frenula, deformed teeth, short ribs and narrow thorax and congenital heart diseases complete the picture. The patients with the syndrome rarely survive into adulthood. Here, we report a lady with EVC presenting for the first time in middle age.

  5. Taking prisoners: Havelock Ellis, Sigmund Freud, and the construction of homosexuality, 1897-1951.

    PubMed

    Crozier, I D

    2000-12-01

    This paper addresses the efforts of both Havelock Ellis and Sigmund Freud to posit a theory of homosexuality, and especially considers their efforts to (re-)negotiate each other's theories. Its central premise derives from the sociology of scientific knowledge: that it is not what is written, but the way that what is written is treated by ensuing experts, that makes knowledge. In the case study used in this paper, Ellis and Freud struggle to posit what they consider to be the proper model for understanding homosexual desire. They utilize aspects of each other's word, but are careful not to appear to be following each other too closely. Such a struggle to establish different schools of thought is exemplified by the informal negotiations engaged in when a student, Joseph Wortis, made contact with both Freud and Ellis. Again following sociology of scientific knowledge precepts, these informal negotiations (contained in published and archival letters) are used to show how knowledge claims are constructed, deconstructed any reconstructed by the actors who have stakes in the outcome of what is to be regarded as knowledge in the relevant communities.

  6. Heavy metal accumulation in Diplodus annularis, Liza aurata, and Solea vulgaris relevant to their concentration in water and sediment from the southwestern Mediterranean (coast of Sfax).

    PubMed

    Ben Salem, Zohra; Ayadi, Habib

    2016-07-01

    The concentrations of heavy metals (Cd, Cu, Fe, Pb, Ni, and Zn) were measured in the liver, gills, and muscle of Solea vulgaris, Liza aurata, and Diplodus annularis, collected from the south coast of Sfax (Gabes Gulf, southwestern Mediterranean). The concentrations of heavy metals in water exhibited the following decreasing order (expressed in μg l(-1)): Fe > Ni > Zn > Cu > Pb > Cd whereas the trend is somewhat different in sediments (mg kg(-1) D.W.) Fe > Zn > Pb > Ni > Cu > Cd. The levels of heavy metals varied significantly among fish species and tissues. Heavy metal levels were found generally higher in the liver and gills than the muscle in all species. The liver was the target organ for Cd, Cu, Fe, Ni, and Zn accumulation. Nickel and lead, however, exhibited their highest concentrations in the gills. The three studied fishes showed a difference in metals accumulation decreasing in following order S. vulgaris > D. annularis > L. aurata. Solea vulgaris with the highest TFwater, TFsediment, and metal concentrations in tissues would be considered as a potential bio-indicator in the south coast of Sfax for the assessment of environmental pollution status. Comparative studies with Luza zone indicate considerable bioaccumulation of heavy metals (Pb and Zn) in the various tissues of fish samples of the south coast of Sfax.

  7. Strong deflection limit analysis and gravitational lensing of an Ellis wormhole

    NASA Astrophysics Data System (ADS)

    Tsukamoto, Naoki

    2016-12-01

    Observations of gravitational lenses in strong gravitational fields give us a clue to understanding dark compact objects. In this paper, we extend a method to obtain a deflection angle in a strong deflection limit provided by Bozza [Phys. Rev. D 66, 103001 (2002)] to apply to ultrastatic spacetimes. We also discuss on the order of an error term in the deflection angle. Using the improved method, we consider gravitational lensing by an Ellis wormhole, which is an ultrastatic wormhole of the Morris-Thorne class.

  8. Venus Flytrap (Dionaea muscipula Solander ex Ellis) Contains Powerful Compounds that Prevent and Cure Cancer.

    PubMed

    Gaascht, François; Dicato, Mario; Diederich, Marc

    2013-01-01

    Chemoprevention uses natural or synthetic molecules without toxic effects to prevent and/or block emergence and development of diseases including cancer. Many of these natural molecules modulate mitogenic signals involved in cell survival, apoptosis, cell cycle regulation, angiogenesis, or on processes involved in the development of metastases occur naturally, especially in fruits and vegetables bur also in non-comestible plants. Carnivorous plants including the Venus flytrap (Dionaea muscipula Solander ex Ellis) are much less investigated, but appear to contain a wealth of potent bioactive secondary metabolites. Aim of this review is to give insight into molecular mechanisms triggered by compounds isolated from these interesting plants with either therapeutic or chemopreventive potential.

  9. Ellis van creveld syndrome with synpolydactyly, an antenatal diagnosis with postnatal correlation.

    PubMed

    Kundaragi, Nischal G; Taori, Kishor; Kumawat, Ritesh; Rathod, Jawahar; Sawant, Atul E

    2011-01-01

    Ellis Van Creveld syndrome (EVC), also known as chondroectodermal dysplasia, presents at birth with short limbs accompanied by postaxial polydactyly, nail dysplasia, and dental anomalies. Other manifestations of EVC include atrial septum defects and other congenital heart diseases. We report a case of the EVC syndrome with postaxial polydactyly (Synpolydactyly with seven fingers on the right side and hexadactyly on the left side) and a partial atrioventricular canal defect diagnosed antenatally. This variation of EVS has not been reported in English literature till date.

  10. Ellis-van Creveld syndrome with unusual oral and dental findings: A rare clinical entity.

    PubMed

    Shaik, Sameeulla; Raviraj, Jayam; Dirasantchu, Suresh; Venkata, Suman S

    2016-01-01

    Ellis-van Creveld (EVC) syndrome, a form of skeletal and chondroectodermal dysplasia, is an autosomal recessive disorder characterized by a tetrad of disproportionate dwarfism, postaxial polydactyly, ectodermal dysplasia, and heart defects. In the present article, we hereby present a case of a 13-year-old girl of Indian ethnicity with EVC syndrome with a remarkable number of classical oral and dental features, with unusual findings such as taurodontism and talons cusp. Such dental findings were reported in few cases only. Despite the fact that oral manifestations play an important role in the diagnosis of EVC, only a few detailed reports have been published in the dental literature.

  11. Ellis-van Creveld syndrome in adulthood: extending the clinical spectrum.

    PubMed

    Pérez-Andreu, Joaquín; Ray, Victor Glenn; Arribas, José María; Sánchez, Sergio Juan

    2015-06-01

    Ellis-van Creveld (EvC) syndrome is a rare autosomal recessive malformation disorder. Cardiac defects are observed in about 50% of EvC cases. Surgical data is lacking on the prognosis and life expectancy of EvC patients. Herein, we report the case of a 38-year-old man with EvC syndrome who underwent two surgical corrections for cardiac anomalies. This report supplements the available information on the clinical course of EvC syndrome in older patients.

  12. [Eugenics and immigration selection: notes on the debate between Alfredo Ellis Junior, Oliveira Vianna, and Menotti Del Picchia, 1926].

    PubMed

    El-Dine, Lorenna Ribeiro Zem

    2016-12-01

    This text analyzes the bill submitted by Alfredo Ellis Junior to the São Paulo legislature in August 1926, which would allow studies to be made of immigrants in São Paulo in order to orient immigration selection policies. It highlights the opinions of Menotti Del Picchia and Oliveira Vianna about the research agenda put forward by Alfredo Ellis Junior, focusing on the different conceptions about the race issue and immigration held in the 1920s. We suggest that Menotti Del Picchia's divergence from Alfredo Ellis Junior and Oliveira Vianna could be interpreted as a dispute between literati and scientists over the legitimacy of their respective knowledge about the Brazilian reality and the proposal of policies for the country.

  13. ELLI-1, a novel germline protein, modulates RNAi activity and P-granule accumulation in Caenorhabditis elegans

    PubMed Central

    Andralojc, Karolina M.; Kelly, Ashley L.; Tanner, Paige C.

    2017-01-01

    Germ cells contain non-membrane bound cytoplasmic organelles that help maintain germline integrity. In C. elegans they are called P granules; without them, the germline undergoes partial masculinization and aberrant differentiation. One key P-granule component is the Argonaute CSR-1, a small-RNA binding protein that antagonizes accumulation of sperm-specific transcripts in developing oocytes and fine-tunes expression of proteins critical to early embryogenesis. Loss of CSR-1 complex components results in a very specific, enlarged P-granule phenotype. In a forward screen to identify mutants with abnormal P granules, ten alleles were recovered with a csr-1 P-granule phenotype, eight of which contain mutations in known components of the CSR-1 complex (csr-1, ego-1, ekl-1, and drh-3). The remaining two alleles are in a novel gene now called elli-1 (enlarged germline granules). ELLI-1 is first expressed in primordial germ cells during mid-embryogenesis, and continues to be expressed in the adult germline. While ELLI-1 forms cytoplasmic aggregates, they occasionally dock, but do not co-localize with P granules. Instead, the majority of ELLI-1 aggregates accumulate in the shared germline cytoplasm. In elli-1 mutants, several genes that promote RNAi and P-granule accumulation are upregulated, and embryonic lethality, sterility, and RNAi resistance in a hypomorphic drh-3 allele is enhanced, suggesting that ELLI-1 functions with CSR-1 to modulate RNAi activity, P-granule accumulation, and post-transcriptional expression in the germline. PMID:28182654

  14. Expression of the Ellis-van Creveld (Evc) gene in the rat tibial growth plate.

    PubMed

    Tsuji, Takehito; Nakamura, Hiroaki; Hirata, Azumi; Yamamoto, Toshio

    2004-08-01

    Ellis-van Creveld (EvC) syndrome is an autosomal recessive chondrodysplasia characterized by short limbs, postaxial polydactyly, natal teeth, and dysplastic nails. The Ellis-van Creveld (EVC) gene, which is mutated in patients with EvC syndrome, has been identified by positional cloning. However, the physiological roles of the EVC gene have not been elucidated. Histopathological analyses of EvC syndrome have shown disturbed chondrocytic phenotypes during cartilage development. We therefore postulated that the EVC gene is a critical factor for chondrocytes during endochondral ossification. The present study focuses on the relationship between the Evc gene and chondrocytes, and examines Evc gene expression in the rat tibial growth plate at the mRNA and protein levels. Evc mRNA in tibial epiphyseal cartilage was expressed at postnatal day (P) 1, P28, and P56 by RT-PCR. Immunohistochemical analyses localized the Evc protein mainly in prehypertrophic and hypertrophic chondrocytes of the epiphyseal growth plate in the tibia during the embryonic and postnatal periods. Evc mRNA was also detected in prehypertrophic and hypertrophic chondrocytes by in situ hybridization. These results indicate that the Evc gene functions mainly in the prehypertrophic and hypertrophic chondrocytes of the epiphyseal growth plate. The data presented here are important for future studies of the underlying mechanism of chondrodysplasia in EvC syndrome.

  15. Diseases and partial mortality in Montastraea annularis species complex in reefs with differing environmental conditions (NW Caribbean and Gulf of Mexico).

    PubMed

    Jordán-Dahlgren, Eric; Maldonado, Miguel Angel; Rodríguez-Martínez, Rosa Elisa

    2005-01-25

    We documented the prevalence of diseases, syndromes and partial mortality in colonies of the Montastraea annularis species complex on 3 reefs, and tested the assumption that a higher prevalence of these parameters occurs when reefs are closer to point-sources of pollution. One reef was isolated from the impact of local factors with the exception of fishing, 1 potentially influenced by local industrial pollutants, and 1 influenced by local urban pollution. Two reefs were surveyed in 1996 and again in 2001 and 1 in 1998 and again in 2001. In 2001, colonies on all reefs had a high prevalence of the yellow-band syndrome and a relatively high degree of recent partial mortality, while the prevalence of black-band and white-plague diseases was low although a new sign, that we named the thin dark line, had relatively high prevalence in all reefs. As no direct relationship was found between disease prevalence and local environmental quality, our results open the possibility that regional and/or global factors may already be playing an important role in the prevalence of coral disease in the Caribbean, and contradict the theory that coral disease prevalence is primarily related to local environmental degradation. Reasons that may partially explain these findings are the high level of potential pathogen connectivity within the Caribbean as a result of its circulation patterns coupled to the large land-derived pollutants and pathogens input into this Mediterranean sea, together with the surface water warming effects which stress corals and enhance pathogen activity.

  16. 75 FR 61706 - Reorganization of Foreign-Trade Zone 113 Under Alternative Site Framework; Ellis County, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-06

    ... Foreign-Trade Zones Board Reorganization of Foreign-Trade Zone 113 Under Alternative Site Framework; Ellis... Board adopted the alternative site framework (ASF) in December 2008 (74 FR 1170, 01/12/09; correction 74... alternative site framework is approved, subject to the FTZ Act and the Board's regulations, including...

  17. Psychological Chauvinism and Nuclear Holocaust: A Response to Albert Ellis and Defense of Non-Rational Emotive Therapies.

    ERIC Educational Resources Information Center

    Walsh, Roger

    1989-01-01

    Claims Ellis' 1986 article on psychology and nuclear holocaust did not address certain key issues and made inaccurate criticisms of non-rational emotive therapies. Attempts to correct these errors and to emphasize the importance of open-minded cooperation among psychologists of differing theoretical persuasions. (Author)

  18. Ellis Englesberg and the discovery of positive control in gene regulation.

    PubMed

    Hahn, Steven

    2014-10-01

    Based on his work with the Escherichia coli l-arabinose operon, Ellis Englesberg proposed in 1965 that the regulatory gene araC was an "activator gene" required for positive control of the ara operon. This challenged the widely held belief in a universal mechanism of negative regulation proposed earlier by Jacob and Monod. For years, Englesberg's model was met with deep skepticism. Despite much frustration with complex ad hoc explanations used to challenge his model, Englesberg persisted until the evidence for positive control in ara and other systems became overwhelming. Englesberg's pioneering work enriched the original operon model and had a lasting impact in opening new and exciting ways of thinking about transcriptional regulation.

  19. Venus Flytrap (Dionaea muscipula Solander ex Ellis) Contains Powerful Compounds that Prevent and Cure Cancer

    PubMed Central

    Gaascht, François; Dicato, Mario; Diederich, Marc

    2013-01-01

    Chemoprevention uses natural or synthetic molecules without toxic effects to prevent and/or block emergence and development of diseases including cancer. Many of these natural molecules modulate mitogenic signals involved in cell survival, apoptosis, cell cycle regulation, angiogenesis, or on processes involved in the development of metastases occur naturally, especially in fruits and vegetables bur also in non-comestible plants. Carnivorous plants including the Venus flytrap (Dionaea muscipula Solander ex Ellis) are much less investigated, but appear to contain a wealth of potent bioactive secondary metabolites. Aim of this review is to give insight into molecular mechanisms triggered by compounds isolated from these interesting plants with either therapeutic or chemopreventive potential. PMID:23971004

  20. The gene for the Ellis-van Creveld syndrome is located on chromosome 4p16

    SciTech Connect

    Polymeropoulos, M.H.; Ide, S.E.; Wright, M.

    1996-07-01

    Ellis-van Creveld syndrome (EVC) is an autosomal recessive disorder characterized by disproportionate dwarfism, polydactyly, and congenital heart disease. This rare disorder is found with increased frequency among the Old Order Amish community in Lancaster County, Pennsylvania. We have used linkage analysis to localize the gene responsible for the EVC phenotype in nine interrelated Amish pedigrees and three unrelated families from Mexico, Ecuador, and Brazil. We now report the linkage for the Ellisvan Creveld syndrome gene to markers on the distal short arm of human chromosome 4, with Z{sub max} = 6.91 at {theta} = 0.02 for marker HOX7, in a region proximal to the FGFR3 gene responsible for the achondroplasia phenotype. 17 refs., 2 figs., 1 tab.

  1. Active movements in plants: Mechanism of trap closure by Dionaea muscipula Ellis.

    PubMed

    Markin, Vladislav S; Volkov, Alexander G; Jovanov, Emil

    2008-10-01

    The Venus flytrap (Dionaea muscipula Ellis) captures insects with one of the most rapid movements in the plant kingdom. We investigated trap closure by mechanical and electrical stimuli using the novel charge-injection method and high-speed recording. We proposed a new hydroelastic curvature mechanism, which is based on the assumption that the lobes possess curvature elasticity and are composed of outer and inner hydraulic layers with different hydrostatic pressure. The open state of the trap contains high elastic energy accumulated due to the hydrostatic pressure difference between the hydraulic layers of the lobe. Stimuli open pores connecting the two layers, water rushes from one hydraulic layer to another, and the trap relaxes to the equilibrium configuration corresponding to the closed state. In this paper we derived equations describing this system based on elasticity Hamiltonian and found closing kinetics. The novel charge-injection stimulation method gives insight into mechanisms of the different steps of signal transduction and response in the plant kingdom.

  2. Morphing structures of the Dionaea muscipula Ellis during the trap opening and closing.

    PubMed

    Volkov, Alexander G; Forde-Tuckett, Victoria; Volkova, Maya I; Markin, Vladislav S

    2014-01-01

    The Venus flytrap is a marvelous plant that has intrigued scientists since the times of Charles Darwin. This carnivorous plant is capable of very fast movements to catch a prey. We found that the maximal speed of the trap closing in the Dionaea muscipula Ellis is about 130,000 times faster than the maximal speed of the trap opening. The mechanism and kinetics of this movement was debated for a long time. Here, the most recent Hydroelastic Curvature Model is applied to the analysis of this movement during closing and opening of the trap with or without a prey. Equations describing the trap movement were derived and verified with experimental data. Chloroform and ether, both anesthetic agents, induce action potentials and close the trap without the mechanical stimulation of trigger hairs. We tested this by dropping 10 μL of ether on the midrib inside the trap without touching any of the mechanosensitive trigger hairs. The trap closed slowly in 10 s. This is at least 20 times slower than the closing of the trap mechanically or electrically. The similar effect can be induced by placing 10 μL of chloroform on the midrib inside the trap, however, the lobes closing time in this case is as fast as closing after mechanical stimulation of the trigger hairs.

  3. Morphing structures of the Dionaea muscipula Ellis during the trap opening and closing

    PubMed Central

    Volkov, Alexander G; Forde-Tuckett, Victoria; Volkova, Maya I; Markin, Vladislav S

    2014-01-01

    The Venus flytrap is a marvelous plant that has intrigued scientists since the times of Charles Darwin. This carnivorous plant is capable of very fast movements to catch a prey. We found that the maximal speed of the trap closing in the Dionaea muscipula Ellis is about 130 000 times faster than the maximal speed of the trap opening. The mechanism and kinetics of this movement was debated for a long time. Here, the most recent Hydroelastic Curvature Model is applied to the analysis of this movement during closing and opening of the trap with or without a prey. Equations describing the trap movement were derived and verified with experimental data. Chloroform and ether, both anesthetic agents, induce action potentials and close the trap without the mechanical stimulation of trigger hairs. We tested this by dropping 10 μL of ether on the midrib inside the trap without touching any of the mechanosensitive trigger hairs. The trap closed slowly in 10 s. This is at least 20 times slower than the closing of the trap mechanically or electrically. The similar effect can be induced by placing 10 μL of chloroform on the midrib inside the trap, however, the lobes closing time in this case is as fast as closing after mechanical stimulation of the trigger hairs. PMID:24618927

  4. Mutations in a new gene in Ellis-van Creveld syndrome and Weyers acrodental dysostosis.

    PubMed

    Ruiz-Perez, V L; Ide, S E; Strom, T M; Lorenz, B; Wilson, D; Woods, K; King, L; Francomano, C; Freisinger, P; Spranger, S; Marino, B; Dallapiccola, B; Wright, M; Meitinger, T; Polymeropoulos, M H; Goodship, J

    2000-03-01

    Ellis-van Creveld syndrome (EvC, MIM 225500) is an autosomal recessive skeletal dysplasia characterized by short limbs, short ribs, postaxial polydactyly and dysplastic nails and teeth. Congenital cardiac defects, most commonly a defect of primary atrial septation producing a common atrium, occur in 60% of affected individuals. The disease was mapped to chromosome 4p16 in nine Amish subpedigrees and single pedigrees from Mexico, Ecuador and Brazil. Weyers acrodental dysostosis (MIM 193530), an autosomal dominant disorder with a similar but milder phenotype, has been mapped in a single pedigree to an area including the EvC critical region. We have identified a new gene (EVC), encoding a 992-amino-acid protein, that is mutated in individuals with EvC. We identified a splice-donor change in an Amish pedigree and six truncating mutations and a single amino acid deletion in seven pedigrees. The heterozygous carriers of these mutations did not manifest features of EvC. We found two heterozygous missense mutations associated with a phenotype, one in a man with Weyers acrodental dysostosis and another in a father and his daughter, who both have the heart defect characteristic of EvC and polydactyly, but not short stature. We suggest that EvC and Weyers acrodental dysostosis are allelic conditions.

  5. Ellis-van Creveld syndrome associated with chronic intestinal pseudo-obstruction.

    PubMed

    Iwakura, Hideo; Fujii, Katsunori; Furutani, Yoshiyuki; Takatani, Tomozumi; Ebata, Ryota; Nakanishi, Toshio; Mitsunaga, Tetsuya; Saito, Takeshi; Kishimoto, Takashi; Yoshida, Hideo; Shimojo, Naoki

    2016-01-01

    Ellis-van Creveld (EVC) syndrome is a rare autosomal recessive disorder characterized by hypoplastic nails, polydactyly, and achondroplasia. Patients usually exhibit normal cognitive function and no remarkable developmental delay. We herein present an unusual case of EVC syndrome. A Japanese 2-year-old boy was born at term, but immediately developed severe respiratory failure due to thorax deformity, postaxial polydactyly and nail hypoplasia. We identified a novel pattern of germinal compound heterozygous nonsense EVC2 mutations of c.1814C > A (p. S605X) and c.2653C > T (p. R885X), leading to the diagnosis of EVC syndrome. Interestingly, he also had severe developmental delay, and suddenly developed excessive abdominal distension at the age of 2. On surgery, extensive necrotic bowel with chronic intestinal pseudo-obstruction was noted. This is, to our knowledge, a most severe phenotype of EVC syndrome, illustrating that the specific pattern of EVC2 compound heterozygous mutations may cause severe developmental delay and intestinal malfunction.

  6. Two Adult Patients with Ellis-van Creveld Syndrome Extending the Clinical Spectrum.

    PubMed

    Rudnik-Schöneborn, S; Zerres, K; Graul-Neumann, L; Wiegand, S; Mellerowicz, H; Hehr, U

    2011-09-01

    Ellis-van Creveld (EvC) syndrome is a rare autosomal recessive malformation syndrome with the main features cardiac defects, postaxial hexadactyly, mesomelic shortening of the limbs, short ribs, dysplastic nails and teeth, oral frenula and various other abnormalities while mental function is normal. We describe 2 adult EvC patients with the cardinal skeletal features of mesomelic short stature and severe, progressive genu valgum deformity, resulting from loss of function mutations in the EVC genes. While the genu valgum was the predominating and disabling feature in patient 1, patient 2 showed acroosteolyses in the distal phalanges and a symmetrical synostosis of metacarpals in his hands. Moreover, patient 2 developed synostoses in the additional fingers in adolescence which had not been present at the age of 12 years, suggesting a further progression of skeletal disease. Joint fusion of phalanges so far has not been reported in EvC syndrome. Our data further expand the phenotypic spectrum of EvC related skeletal malformations and contribute important new information on the clinical course of EvC syndrome with increasing age.

  7. Analysis of Ellis van Creveld syndrome gene products: implications for cardiovascular development and disease.

    PubMed

    Sund, Kristen Lipscomb; Roelker, Stephanie; Ramachandran, Vijaya; Durbin, Lisa; Benson, D Woodrow

    2009-05-15

    Mutations identified in a cohort of patients with atrioventricular septal defects as a part of Ellis van Creveld syndrome (EvC syndrome) led us to study the role of two non-homologous genes, EVC and LBN, in heart development and disease pathogenesis. To address the cause of locus heterogeneity resulting in an indistinguishable heart-hand phenotype, we carried out in situ hybridization and immunofluorescence and identified co-localization of Evc and Lbn mRNA and protein. In the heart, expression was identified to be strongest in the secondary heart field, including both the outflow tract and the dorsal mesenchymal protrusion, but was also found in mesenchymal structures of the atrial septum and the atrioventricular cushions. Finally, we studied the transcriptional hierarchy of EVC and LBN but did not find any evidence of direct transcriptional interregulation between the two. Due to the locus heterogeneity of human mutations predicted to result in a loss of protein function, a bidirectional genomic organization and overlapping expression patterns, we speculate that these proteins function coordinately in cardiac development and that loss of this coordinate function results in the characteristics of EvC syndrome.

  8. Growth hormone analysis and treatment in Ellis-van Creveld syndrome.

    PubMed

    Versteegh, Florens G A; Buma, Sannine A; Costin, Gertrude; de Jong, Wilfried C; Hennekam, Raoul C M

    2007-09-15

    Little is known on growth, growth hormone (GH) levels and GH treatment in patients with Ellis-van Creveld syndrome (EvC). The aim of the present study was to assess growth, growth hormone status and the possible effectiveness of GH treatment in literature and in a small series of EvC patients. A review of literature indicated retarded growth for most EvC patients (-2 to -4.5 SDS) and minimal data on GH levels or treatment which did not allow any conclusion. We studied eight EvC patients, seven of whom were treated with GH. Four were GH deficient (GHD) and four were GH sufficient. In all patients treated with GH, first year growth velocity increased. In three of the four GHD and in one GH-sufficient patient a gain in height SDS was noted. In the present small EvC series GHD occurred more often than expected. Patient acquisition through the Growth Hormone Database will have caused a significant bias, but the present results indicate that GH treatment may improve growth in at least some patients with EvC. Therefore we conclude that EvC patients may benefit from being tested for GHD and, if indicated, treated. In addition a prospective study to evaluate GH status and linear growth in patients with EvC as well as the potential effectiveness of GH treatment is warranted.

  9. Analysis of Ellis van Creveld syndrome gene products: implications for cardiovascular development and disease

    PubMed Central

    Sund, Kristen Lipscomb; Roelker, Stephanie; Ramachandran, Vijaya; Durbin, Lisa; Benson, D. Woodrow

    2009-01-01

    Mutations identified in a cohort of patients with atrioventricular septal defects as a part of Ellis van Creveld syndrome (EvC syndrome) led us to study the role of two non-homologous genes, EVC and LBN, in heart development and disease pathogenesis. To address the cause of locus heterogeneity resulting in an indistinguishable heart–hand phenotype, we carried out in situ hybridization and immunofluorescence and identified co-localization of Evc and Lbn mRNA and protein. In the heart, expression was identified to be strongest in the secondary heart field, including both the outflow tract and the dorsal mesenchymal protrusion, but was also found in mesenchymal structures of the atrial septum and the atrioventricular cushions. Finally, we studied the transcriptional hierarchy of EVC and LBN but did not find any evidence of direct transcriptional interregulation between the two. Due to the locus heterogeneity of human mutations predicted to result in a loss of protein function, a bidirectional genomic organization and overlapping expression patterns, we speculate that these proteins function coordinately in cardiac development and that loss of this coordinate function results in the characteristics of EvC syndrome. PMID:19251731

  10. Novel mutations in EVC cause aberrant splicing in Ellis-van Creveld syndrome.

    PubMed

    Shi, Lisong; Luo, Chunyan; Ahmed, Mairaj K; Attaie, Ali B; Ye, Xiaoqian

    2016-04-01

    Ellis-van Creveld syndrome (EvC) is a rare autosomal recessive disorder characterized by disproportionate chondrodysplasia, postaxial polydactyly, nail dystrophy, dental abnormalities and in a proportion of patients, congenital cardiac malformations. Weyers acrofacial dysostosis (Weyers) is another dominantly inherited disorder allelic to EvC syndrome but with milder phenotypes. Both disorders can result from loss-of-function mutations in either EVC or EVC2 gene, and phenotypes associated with the two gene mutations are clinically indistinguishable. We present here a clinical and molecular analysis of a Chinese family manifested specific features of EvC syndrome. Sequencing of both EVC and EVC2 identified two novel heterozygous splice site mutations c.384+5G>C in intron 3 and c.1465-1G>A in intron 10 in EVC, which were inherited from mother and father, respectively. In vitro minigene expression assay, RT-PCR and sequencing analysis demonstrated that c.384+5G>C mutation abolished normal splice site and created a new cryptic acceptor site within exon 4, whereas c.1465-1G>A mutation affected consensus splice junction site and resulted in full exon 11 skipping. These two aberrant pre-mRNA splicing processes both produced in-frame abnormal transcripts that possibly led to abolishment of important functional domains. To our knowledge, this is the first report of EVC mutations that cause EvC syndrome in Chinese population. Our data revealed that EVC splice site mutations altered splicing pattern and helped elucidate the pathogenesis of EvC syndrome.

  11. Ellis-van Creveld Syndrome in Grey Alpine Cattle: Morphologic, Immunophenotypic, and Molecular Characterization.

    PubMed

    Muscatello, L V; Benazzi, C; Dittmer, K E; Thompson, K G; Murgiano, L; Drögemüller, C; Avallone, G; Gentile, A; Edwards, J F; Piffer, C; Bolcato, M; Brunetti, B

    2015-09-01

    Ellis-van Creveld (EvC) syndrome is a human autosomal recessive disorder caused by a mutation in either the EVC or EVC2 gene, and presents with short limbs, polydactyly, and ectodermal and heart defects. The aim of this study was to understand the pathologic basis by which deletions in the EVC2 gene lead to chondrodysplastic dwarfism and to describe the morphologic, immunohistochemical, and molecular hallmarks of EvC syndrome in cattle. Five Grey Alpine calves, with a known mutation in the EVC2 gene, were autopsied. Immunohistochemistry was performed on bone using antibodies to collagen II, collagen X, sonic hedgehog, fibroblast growth factor 2, and Ki67. Reverse transcription polymerase chain reaction was performed to analyze EVC1 and EVC2 gene expression. Autopsy revealed long bones that were severely reduced in length, as well as genital and heart defects. Collagen II was detected in control calves in the resting, proliferative, and hypertrophic zones and in the primary and secondary spongiosa, with a loss of labeling in the resting zone of 2 dwarfs. Collagen X was expressed in hypertrophic zone in the controls but was absent in the EvC cases. In affected calves and controls, sonic hedgehog labeled hypertrophic chondrocytes and primary and secondary spongiosa similarly. FGF2 was expressed in chondrocytes of all growth plate zones in the control calves but was lost in most EvC cases. The Ki67 index was lower in cases compared with controls. EVC and EVC2 transcripts were detected. Our data suggest that EvC syndrome of Grey Alpine cattle is a disorder of chondrocyte differentiation, with accelerated differentiation and premature hypertrophy of chondrocytes, and could be a spontaneous model for the equivalent human disease.

  12. Epigenetic deregulation of Ellis Van Creveld confers robust Hedgehog signaling in adult T-cell leukemia.

    PubMed

    Takahashi, Ryutaro; Yamagishi, Makoto; Nakano, Kazumi; Yamochi, Toshiko; Yamochi, Tadanori; Fujikawa, Dai; Nakashima, Makoto; Tanaka, Yuetsu; Uchimaru, Kaoru; Utsunomiya, Atae; Watanabe, Toshiki

    2014-09-01

    One of the hallmarks of cancer, global gene expression alteration, is closely associated with the development and malignant characteristics associated with adult T-cell leukemia (ATL) as well as other cancers. Here, we show that aberrant overexpression of the Ellis Van Creveld (EVC) family is responsible for cellular Hedgehog (HH) activation, which provides the pro-survival ability of ATL cells. Using microarray, quantitative RT-PCR and immunohistochemistry we have demonstrated that EVC is significantly upregulated in ATL and human T-cell leukemia virus type I (HTLV-1)-infected cells. Epigenetic marks, including histone H3 acetylation and Lys4 trimethylation, are specifically accumulated at the EVC locus in ATL samples. The HTLV-1 Tax participates in the coordination of EVC expression in an epigenetic fashion. The treatment of shRNA targeting EVC, as well as the transcription factors for HH signaling, diminishes the HH activation and leads to apoptotic death in ATL cell lines. We also showed that a HH signaling inhibitor, GANT61, induces strong apoptosis in the established ATL cell lines and patient-derived primary ATL cells. Therefore, our data indicate that HH activation is involved in the regulation of leukemic cell survival. The epigenetically deregulated EVC appears to play an important role for HH activation. The possible use of EVC as a specific cell marker and a novel drug target for HTLV-1-infected T-cells is implicated by these findings. The HH inhibitors are suggested as drug candidates for ATL therapy. Our findings also suggest chromatin rearrangement associated with active histone markers in ATL.

  13. Ellis Van Creveld2 is Required for Postnatal Craniofacial Bone Development.

    PubMed

    Badri, Mohammed K; Zhang, Honghao; Ohyama, Yoshio; Venkitapathi, Sundharamani; Kamiya, Nobuhiro; Takeda, Haruko; Ray, Manas; Scott, Greg; Tsuji, Takehito; Kunieda, Tetsuo; Mishina, Yuji; Mochida, Yoshiyuki

    2016-08-01

    Ellis-van Creveld (EvC) syndrome is a genetic disorder with mutations in either EVC or EVC2 gene. Previous case studies reported that EvC patients underwent orthodontic treatment, suggesting the presence of craniofacial bone phenotypes. To investigate whether a mutation in EVC2 gene causes a craniofacial bone phenotype, Evc2 knockout (KO) mice were generated and cephalometric analysis was performed. The heads of wild type (WT), heterozygous (Het) and homozygous Evc2 KO mice (1-, 3-, and 6-week-old) were prepared and cephalometric analysis based on the selected reference points on lateral X-ray radiographs was performed. The linear and angular bone measurements were then calculated, compared between WT, Het and KO and statistically analyzed at each time point. Our data showed that length of craniofacial bones in KO was significantly lowered by ∼20% to that of WT and Het, the growth of certain bones, including nasal bone, palatal length, and premaxilla was more affected in KO, and the reduction in these bone length was more significantly enhanced at later postnatal time points (3 and 6 weeks) than early time point (1 week). Furthermore, bone-to-bone relationship to cranial base and cranial vault in KO was remarkably changed, i.e. cranial vault and nasal bone were depressed and premaxilla and mandible were developed in a more ventral direction. Our study was the first to show the cause-effect relationship between Evc2 deficiency and craniofacial defects in EvC syndrome, demonstrating that Evc2 is required for craniofacial bone development and its deficiency leads to specific facial bone growth defect. Anat Rec, 299:1110-1120, 2016. © 2016 Wiley Periodicals, Inc.

  14. Ellis-van Creveld syndrome and congenital heart defects: presentation of an additional 32 cases.

    PubMed

    Hills, Christine B; Kochilas, Lazaros; Schimmenti, Lisa A; Moller, James H

    2011-10-01

    Ellis-van Creveld (EVC) syndrome is a rare genetic abnormality that has been linked to a mutation in the EVC or EVC2 genes. Common atrium (CA) is an uncommon cardiac malformation, and yet it is commonly found in patients with EVC. We performed a retrospective review of the cases submitted to the Pediatric Cardiac Care Consortium (PCCC) between 1982 and 2007. A review of the English-language literature for previously published cases, as well as current genetic research findings, was also performed. Thirty-two pediatric patients with congenital heart disease (CHD) and EVC syndrome were identified in the PCCC database. Twenty-eight (88%) had an endocardial cushion defect, with 15 of these having primary failure of atrial septation resulting in CA. Persistent left superior vena cava (LSVC) and pulmonary venous connection abnormalities were common. The incidence of persistent LSVC and pulmonary venous abnormalities were greater than previously reported for patients with EVC. Our study reviews the reported literature and adds 32 additional cases from the PCCC database. Review of the cardiac phenotype in patients with EVC syndrome reveals a characteristic pattern of atrioventricular canal defects with systemic and pulmonary venous abnormalities. The frequent association of these abnormalities is strongly reminiscent of the cardiac phenotype found in patients with heterotaxy syndromes. Emerging molecular and developmental studies suggest that EVC and EVC2 proteins may be important for cilia function, which is implicated in the pathogenesis of heterotaxy syndromes. It is speculated that coordinate function between the EVC proteins is required for a cilia-dependent cardiac morphogenesis.

  15. Molecular and clinical analysis of Ellis-van Creveld syndrome in the United Arab Emirates

    PubMed Central

    2010-01-01

    Background Ellis-van Creveld (EvC) syndrome is an autosomal recessive chondrodysplastic condition with clinical manifestations that include short-limbs and ribs, postaxial polydactyly and dysplastic nails and teeth. In about two thirds of patients, mutations in either EVC or EVC2 genes have been found to be the underlying cause. Methods In this paper, we describe the molecular (DNA sequencing) and clinical analysis of six children diagnosed with EvC from four different families from the United Arab Emirates (UAE). Results All the children had the common clinical and radiological features of this syndrome. However, DNA sequence analysis of the genes shown to be involved (EVC and EVC2) revealed a novel splice site mutation (c.2047-1G>T) in intron 13 of EVC2 gene in one family. In addition, we confirm previous mutational analyses that showed a truncating mutation in exon 13 of EVC gene (c.1813C>T; p.Q605X) in the second family and a single nucleotide deletion (c.981delG; p.K327fs) in exon 8 of EVC2 gene in the third family. No mutations in the exons, splice sites or the promoter regions of either gene have been found in the index case of the fourth family who exhibited "EvC-like" features. Conclusions Given the small population size of UAE, our data illustrates further the molecular heterogeneity observed in EvC patients and excludes the possibility of a common founder effect for this condition in the UAE reflecting the current ethnic diversity of the country. PMID:20184732

  16. Autosomal dominant postaxial polydactyly, nail dystrophy, and dental abnormalities map to chromosome 4p16, in the region containing the Ellis-van Creveld syndrome locus.

    PubMed Central

    Howard, T D; Guttmacher, A E; McKinnon, W; Sharma, M; McKusick, V A; Jabs, E W

    1997-01-01

    We have studied a four-generation family with features of Weyers acrofacial dysostosis, in which the proband has a more severe phenotype, resembling Ellis-van Creveld syndrome. Weyers acrofacial dysostosis is an autosomal dominant condition with dental anomalies, nail dystrophy, postaxial polydactyly, and mild short stature. Ellis-van Creveld syndrome is a similar condition, with autosomal recessive inheritance and the additional features of disproportionate dwarfism, thoracic dysplasia, and congenital heart disease. Linkage and haplotype analysis determined that the disease locus in this pedigree resides on chromosome 4p16, distal to the genetic marker D4S3007 and within a 17-cM region flanking the genetic locus D4S2366. This region includes the Ellis-van Creveld syndrome locus, which previously was reported to map within a 3-cM region between genetic markers D4S2957 and D4S827. Either the genes for the condition in our family and for Ellis-van Creveld syndrome are near one another or these two conditions are allelic with mutations in the same gene. These data also raise the possibility that Weyers acrofacial dysostosis is the heterozygous expression of a mutation that, in homozygous form, causes the autosomal recessive disorder Ellis-van Creveld syndrome. Images Figure 1 PMID:9399901

  17. The history of early low frequency radio astronomy in Australia. 3: Ellis, Reber and the Cambridge field station near Hobart

    NASA Astrophysics Data System (ADS)

    George, Martin; Orchiston, Wayne; Slee, Bruce; Wielebinski, Richard

    2015-07-01

    Low frequency radio astronomy in Tasmania began with the arrival of Grote Reber to the State in 1954. After analysing ionospheric data from around the world, he concluded that Tasmania would be a very suitable place to carry out low frequency observations. Communications with Graeme Ellis in Tasmania, who had spent several years studying the ionosphere, led to a collaboration between the two in 1955 during which year they made observations at Cambridge, near Hobart. Their observations took place at four frequencies between 2.13 MHz and 0.52 MHz inclusive, with the results at the higher frequencies revealing a clear celestial component

  18. Biomimetic robotic Venus flytrap (Dionaea muscipula Ellis) made with ionic polymer metal composites.

    PubMed

    Shahinpoor, Mohsen

    2011-12-01

    The work described in this paper is a novel design of a robotic Venus flytrap (VFT) (Dionaea muscipula Ellis) by means of ionic polymeric metal composite (IPMC) artificial muscles as distributed nanosensors and nanoactuators. Rapid muscular movements in carnivorous plants, such as VFT, which are triggered by antenna-like sensors (trigger hair), present a golden key to study distributed biomolecular motors. Carnivorous plants, such as VFT, possess built-in intelligence (trigger hairs), as a strategy to capture prey, that can be turned on in a controlled manner. In the case of the VFT, the prey that is lured by the sweet nectar in the VFT pair of jaw-like lobes has to flip and move the trigger hairs, which are colorless, bristle-like and pointed. The dynamically moved trigger hairs then electro-elastically send an electric signal to the internal ions in the lobe to migrate outwardly for the jaw-like lobes to close rapidly to capture the prey. The manner in which the VFT lobes bend inward to capture the prey shows a remarkable similarity with typical IPMCs bending in an electric field. Furthermore, the mechano-electrical sensing characteristics of IPMCs also show a remarkable resemblance to mechano-electrical trigger hairs on the lobes of the VFT. The reader is referred to a number of papers in connection with sensing and actuation of IPMCs in particular. Thus, one can integrate IPMC lobes with a common electrode in the middle of one end of the lobes to act like a spine and use IPMC bristles as trigger finger to sense the intrusion of a fly or insect to send a sensing signal to a solid state relay which then triggers the actuation circuit of the IPMC lobes to rapidly bend toward each other and close. The two lobes, which form the trap, are attached to the midrib common electrode which is conveniently termed the spine. The upper surface of each lobe is dished, and spaced along the free margins of the lobes with some 15-20 prong-like teeth. These are tough and pointed

  19. Ellis-van Creveld syndrome and Weyers acrodental dysostosis are caused by cilia-mediated diminished response to hedgehog ligands.

    PubMed

    Ruiz-Perez, Victor L; Goodship, Judith A

    2009-11-15

    Ellis-van Creveld syndrome (EvC; OMIM 225500) is a recessive disorder comprising chondrodysplasia, polydactyly, nail dysplasia, orofacial abnormalities and, in a proportion of patients, cardiovascular malformations. Weyers acrodental dysostosis (Weyers; OMIM 193530) is an allelic dominant disorder comprising polydactyly, nail dysplasia, and orofacial abnormalities. EvC results from loss-of-function mutations in EVC or EVC2, the phenotype associated with the mutations in these two genes being indistinguishable. Three convincing causative mutations have been identified in patients with Weyers acrodental dysostosis, which are clustered in the last coding exon of EVC2 and lead to production of a truncated protein lacking the final 43 amino acids. Localization and function of EVC and EVC2 are inferred from studying the murine orthologs. Both Evc and Evc2 proteins localize to the basal bodies of primary cilia and analysis of an Ellis-van Creveld mouse model, which includes the limb shortening and tooth abnormalities of EvC patients, has demonstrated Hedgehog signaling defects in the absence of Evc. The loss of Evc2 has not been studied directly, but Hedgehog signaling is impaired when a mutant murine Evc2 Weyer variant is expressed in vitro. We conclude that the phenotypic abnormalities in EvC and Weyers syndrome result from tissue specific disruption of the response to Hh ligands.

  20. On the mechanism of trap closure of Venus flytrap (Dionaea muscipula Ellis).

    PubMed

    Hodick, D; Sievers, A

    1989-08-01

    The rapid trap closure of Dionaea muscinula Ellis has been explained by either a loss of turgor pressure of the upper epidermis, which should thus become flexible, or by a sudden acid-induced wall loosening of the motor cells. According to our experiments both explanations are doubtful. Objections against the turgor mechanism come from the determination by extracellular measurements from the upper epidermis of action-potential amplitudes before and after trap closure. Neither time course nor amplitude of the action potentials are altered by trap closure. In contrast a rise in the apoplastic concentration of K(+) or Na(+), which are the only ions present in the trap in osmotically significant concentrations, from 1 to 10 mM reduces the action-potential amplitudes by 25% and 15%, respectively. Furthermore, after trap closure the upper epidermal cells retain a considerable cell sap osmolality of 0.41 mol·kg(-1) which equals that of the mesophyll cells as determined by incipient plasmolysis. A sudden cell-wall acidification causing movement is improbable since an acidification of the apoplast from pH 6 to pH 4 reduces action-potential amplitudes by 33% whereas the amplitudes measured extracellylarly from the mesophyll and lower epidermis remain unchanged by trap closure. In addition, buffering the apoplast at pH 6 does not prevent movement in traps which have been incised several times from the margin to the midrib to facilitate buffer diffusion into the mesophyll. Even an alkalinization of cell walls of plasmolysed leaf segments to pH 9 does not prevent considerable extensions of the mesophyll and subsequent movement of the specimens during deplasmolysis.These experiments make it very likely that the mesophyll cells are already extensible but are kept compressed in the open trap, thus developing tissue tension. The mechanism which prevents their extension as long as the trap is open can so far only be explained for traps which have been paralysed by a long

  1. Identification of one novel mutation in the EVC2 gene in a Chinese family with Ellis-van Creveld syndrome.

    PubMed

    Zhang, Zeng; Bao, Kun; He, Jin-Wei; Fu, Wen-Zhen; Zhang, Chang-Qing; Zhang, Zhen-Lin

    2012-12-15

    Ellis-van Creveld syndrome (EvC) is a rare autosomal recessive skeletal dysplasia characterized by short limbs, short ribs, postaxial polydactyly, and dysplastic nails and teeth. It is caused by biallelic mutations in the EVC or EVC2 gene. Here, we identified a novel nonsense mutation p.W828X (c.2484G>A) in exon 14 and a recurrent nonsense mutation p. R399X (c.1195C>T) in exon 10 of EVC2 gene in a Chinese boy with EvC. Identification of a novel genotype in EvC will provide clues to the phenotype-genotype relations and may assist not only in the clinical diagnosis of EvC but also in the interpretation of genetic information used for prenatal diagnosis and genetic counseling.

  2. A comparison of culture-dependent and culture-independent techniques used to characterize bacterial communities on healthy and white plague-diseased corals of the Montastraea annularis species complex

    NASA Astrophysics Data System (ADS)

    Cook, G. M.; Rothenberger, J. P.; Sikaroodi, M.; Gillevet, P. M.; Peters, E. C.; Jonas, R. B.

    2013-06-01

    Diseases of hermatypic corals pose a global threat to coral reefs, and investigations of bacterial communities associated with healthy corals and those exhibiting signs of disease are necessary for proper diagnosis. One disease, commonly called white plague (WP), is characterized by acute tissue loss. This investigation compared the bacterial communities associated with healthy coral tissue ( N = 15), apparently healthy tissue on WP-diseased colonies ( N = 15), and WP-diseased tissues ( N = 15) from Montastraea annularis (species complex) colonies inhabiting a Bahamian reef. Aliquots of sediment ( N = 15) and water ( N = 15) were also obtained from the proximity of each coral colony sampled. Samples for culture-dependent analyses were inoculated onto one-half strength Marine Agar (½ MA) and Thiosulfate Citrate Bile Salts Sucrose Agar to quantify the culturable communities. Length heterogeneity PCR (LH-PCR) of the 16S rRNA gene characterized the bacterial operational taxonomic units (OTU) associated with lesions on corals exhibiting signs of a white plague-like disease as well as apparently healthy tissue from diseased and non-diseased conspecifics. Analysis of Similarity was conducted on the LH-PCR fingerprints, which indicated no significant difference in the composition of bacterial communities associated with apparently healthy and diseased corals. Comparisons of the 16S rRNA gene amplicons from cultured bacterial colonies (½ MA; N = 21) with all amplicons obtained from the whole coral-associated bacterial community indicated ≥39 % of coral-associated bacterial taxa could be cultured. Amplicons from these bacterial cultures matched amplicons from the whole coral-associated bacterial community that, when combined, accounted for >70 % total bacterial abundance. An OTU with the same amplicon length as Aurantimonas coralicida (313.1 bp), the reported etiological agent of WPII, was detected in relatively low abundance (<0.1 %) on all tissue types. These findings

  3. Identification of Novel Source of Resistance and Differential Response of Allium Genotypes to Purple Blotch Pathogen, Alternaria porri (Ellis) Ciferri

    PubMed Central

    Nanda, Satyabrata; Chand, Subodh Kumar; Mandal, Purander; Tripathy, Pradyumna; Joshi, Raj Kumar

    2016-01-01

    Purple blotch, caused by Alternaria porri (Ellis) Cifferi, is a serious disease incurring heavy yield losses in the bulb and seed crop of onion and garlic worldwide. There is an immediate need for identification of effective resistance sources for use in host resistance breeding. A total of 43 Allium genotypes were screened for purple blotch resistance under field conditions. Allium cepa accession ‘CBT-Ac77’ and cultivar ‘Arka Kalyan’ were observed to be highly resistant. In vitro inoculation of a selected set of genotypes with A. porri, revealed that 7 days after inoculation was suitable to observe the disease severity. In vitro screening of 43 genotypes for resistance to A. porri revealed two resistant lines. An additional 14 genotypes showed consistent moderate resistance in the field as well as in vitro evaluations. Among the related Allium species, A. schoenoprasum and A. roylei showed the least disease index and can be used for interspecific hybridization with cultivated onion. Differential reaction analysis of three A. porri isolates (Apo-Chiplima, Apn-Nasik, Apg-Guntur) in 43 genotypes revealed significant variation among the evaluated Allium species (P = 0.001). All together, the present study suggest that, the newly identified resistance sources can be used as potential donors for ongoing purple blotch resistance breeding program in India. PMID:27904458

  4. Crocetin, a carotenoid from Gardenia jasminoides Ellis, protects against hypertension and cerebral thrombogenesis in stroke-prone spontaneously hypertensive rats.

    PubMed

    Higashino, Saori; Sasaki, Yasuto; Giddings, John C; Hyodo, Kanae; Sakata, Shigeko Fujimoto; Matsuda, Koichi; Horikawa, Yoko; Yamamoto, Junichiro

    2014-09-01

    Crocetin is a natural carotenoid dicarboxylic acid that is found in the fruit of Gardenia jasminoides Ellis (Cape Jasmine) and in the stamen and pistil of Crocus sativus L. (saffron). It is used worldwide as an important spice, food colorant, and herbal medicine. In the current investigation, we have examined the cardiovascular effects of crocetin using stroke-prone spontaneously hypertensive rats (SHRSPs). Male SHRSPs (6 weeks old) were classified into three groups: a control group and two crocetin groups (25 and 50 mg/kg/day). The animals were given crocetin for 3 weeks. Body weights in each group were not significantly different during the treatment period, but the increase in systolic blood pressures observed with age was significantly moderated by crocetin. Thrombogenesis, assessed using a He-Ne laser technique in pial vessels, was significantly decreased. Antioxidant activity, assessed by measuring urinary 8-hydroxy-2'-deoxyguanosine levels, together with urinary nitric oxide (NO) metabolite levels, was increased significantly after treatment. Acetylcholine-induced vasodilation was measured using the aorta and indicated that endothelial function was significantly improved by crocetin. These results strongly suggest that the antihypertensive and antithrombotic effects of crocetin were related to an increase in bioavailable NO, possibly mediated by decreased inactivation of NO by reactive oxygen species.

  5. The Effect of Various Media and Hormones via Suspension Culture on Secondary Metabolic Activities of (Cape Jasmine) Gardenia jasminoides Ellis

    PubMed Central

    Mat Taha, Rosna; Rashid, Kamaludin; Syafawati Yaacob, Jamilah

    2014-01-01

    The leaf of Gardenia jasminoides Ellis was used as explants and was cultured on MS and WPM media supplemented with various concentrations of NAA, IAA, 2,4-D, IBA, TDZ, and Kn (0 to 5 mg L−1 with 0.5 increment). After six months, the higher percentage of callus (100%) and the best dry and fresh weight of callus were formed on WPM medium supplemented with 2,4-D and NAA (2.0-3.0 mg L−1) and this amount was decreased from (84%) to (69%) when this media supplemented with Kinetin and TDZ (1 mg L−1) respectively were used. Leaf segments cultured on WPM media added with Kn (1 mg L−1) and TDZ (2 mg L−1) yielded the least amount of callus. It was found that WPM media added with IAA (4.5–5.0 mg L−1) were optimum for root induction from G. jasminoides plantlets. Antibacterial screening of leaf extracts (in vivo) showed no inhibitory effect against E. coli, P. aeruginosa, S. aureus, and B. cereus, in contrast to callus extracts from leaf cultures supplemented with NAA, which showed inhibition activity against E. coli and B. cereus. The callus extracts from leaf cultures grown on both MS and WPM media showed higher antioxidant and superoxide dismutase activities than leaf extracts. PMID:24967432

  6. The biosynthesis of palladium nanoparticles by antioxidants in Gardenia jasminoides Ellis: long lifetime nanocatalysts for p-nitrotoluene hydrogenation

    NASA Astrophysics Data System (ADS)

    Jia, Lishan; Zhang, Qian; Li, Qingbiao; Song, Hao

    2009-09-01

    Gardenia jasminoides Ellis' water crude extract was used for the bioreduction of palladium chloride in this paper. The UV-vis spectrum, x-ray diffraction spectrum measurement, the Fourier transform infrared spectroscopy and TEM technique confirmed the formation of palladium nanoparticles and identified antioxidants including geniposide, chlorogenic acid, crocins and crocetin were reducing and stabilizing agents for synthesizing palladium nanoparticles in water crude extract. The particle size and dispersity were temperature-dependent. The particle sizes ranged from 3 to 5 nm and revealed the best dispersity at 70 °C. Catalytic performance of the biosynthetic Pd nanoparticles with good dispersity was investigated by hydrogenation of p-nitrotoluene. The catalysts showed a conversion of 100% under conditions of 5 MPa, 150 °C for 2 h. The selectivity of p-methyl-cyclohexylamine achieved 26.3%. The catalyst was recycled five times with no agglomeration and maintained activity, which was attributed to the appropriate protection of the antioxidants. On the basis of the study, it appears to be a new promising biosynthetic nanocatalyst for the development of an industrial process.

  7. The effect of various media and hormones via suspension culture on secondary metabolic activities of (Cape Jasmine) Gardenia jasminoides Ellis.

    PubMed

    Farzinebrahimi, Reza; Mat Taha, Rosna; Rashid, Kamaludin; Syafawati Yaacob, Jamilah

    2014-01-01

    The leaf of Gardenia jasminoides Ellis was used as explants and was cultured on MS and WPM media supplemented with various concentrations of NAA, IAA, 2,4-D, IBA, TDZ, and Kn (0 to 5 mg L(-1) with 0.5 increment). After six months, the higher percentage of callus (100%) and the best dry and fresh weight of callus were formed on WPM medium supplemented with 2,4-D and NAA (2.0-3.0 mg L(-1)) and this amount was decreased from (84%) to (69%) when this media supplemented with Kinetin and TDZ (1 mg L(-1)) respectively were used. Leaf segments cultured on WPM media added with Kn (1 mg L(-1)) and TDZ (2 mg L(-1)) yielded the least amount of callus. It was found that WPM media added with IAA (4.5-5.0 mg L(-1)) were optimum for root induction from G. jasminoides plantlets. Antibacterial screening of leaf extracts (in vivo) showed no inhibitory effect against E. coli, P. aeruginosa, S. aureus, and B. cereus, in contrast to callus extracts from leaf cultures supplemented with NAA, which showed inhibition activity against E. coli and B. cereus. The callus extracts from leaf cultures grown on both MS and WPM media showed higher antioxidant and superoxide dismutase activities than leaf extracts.

  8. The importance of oral-clinical findings for the correct diagnosis of Ellis-van Creveld syndrome.

    PubMed

    Pedro, Rafael Lima; Andrade, Lucia Helena Raymundo; Maia, Lucianne Cople

    2011-01-01

    Ellis-van Creveld syndrome (EVC), also known as chondroectodermal dysplasia, is a rare autosomal recessive disorder. It is characterized by a variable spectrum of clinical findings, and the most common tetrad is chondrodystrophy, polydactyly, ectodermal dysplasia, and cardiac defects. Among the oral findings, number anomalies, peg-shaped teeth, and alterations in soft tissues are noteworthy. The aim of this paper is to report a case in which the diagnosis of EVC was possible only with the oral findings of a dentist and to relate the dental treatment performed. A 2-year-old girl was brought for dental care due to a lack of teeth. Her condition was initially diagnosed as thanatophoric dysplasia by her pediatrician. After evaluation of the oral manifestations, the dentist referred her to a geneticist, with the suggestion of EVC. The dental report, together with the systemic manifestations, allowed the geneticist to confirm the EVC diagnosis. The necessary dental procedures were performed, and the patient, now age 5, is still monitored by a multidisciplinary team.

  9. Disruption of sonic hedgehog signaling in Ellis-van Creveld dwarfism confers protection against bipolar affective disorder.

    PubMed

    Ginns, E I; Galdzicka, M; Elston, R C; Song, Y E; Paul, S M; Egeland, J A

    2015-10-01

    Ellis-van Creveld syndrome, an autosomal recessively inherited chondrodysplastic dwarfism, is frequent among Old Order Amish of Pennsylvania. Decades of longitudinal research on bipolar affective disorder (BPAD) revealed cosegregation of high numbers of EvC and Bipolar I (BPI) cases in several large Amish families descending from the same pioneer. Despite the high prevalence of both disorders in these families, no EvC individual has ever been reported with BPI. The proximity of the EVC gene to our previously reported chromosome 4p16 BPAD locus with protective alleles, coupled with detailed clinical observations that EvC and BPI do not occur in the same individuals, led us to hypothesize that the genetic defect causing EvC in the Amish confers protection from BPI. This hypothesis is supported by a significant negative association of these two disorders when contrasted with absence of disease (P=0.029, Fisher's exact test, two-sided, verified by permutation to estimate the null distribution of the test statistic). As homozygous Amish EVC mutations causing EvC dwarfism do so by disrupting sonic hedgehog (Shh) signaling, our data implicate Shh signaling in the underlying pathophysiology of BPAD. Understanding how disrupted Shh signaling protects against BPI could uncover variants in the Shh pathway that cause or increase risk for this and related mood disorders.

  10. Sequencing EVC and EVC2 identifies mutations in two-thirds of Ellis-van Creveld syndrome patients.

    PubMed

    Tompson, Stuart W J; Ruiz-Perez, Victor L; Blair, Helen J; Barton, Stephanie; Navarro, Victoria; Robson, Joanne L; Wright, Michael J; Goodship, Judith A

    2007-01-01

    Ellis-van Creveld syndrome (EvC) is caused by mutations in EVC and EVC2, genes in a divergent orientation separated by only 2.6 kb. We systematically sought mutations in both genes in a panel of 65 affected individuals to assess the proportion of cases resulting from mutations in each gene. We PCR amplified and sequenced the coding exons of both genes. We investigated mutations that could affect splicing by in vitro splicing assays and cDNA analysis. We have identified EVC mutations in 20 cases (31%); in all of these we have detected the mutation on each allele. We have identified EVC2 mutations in 25 cases (38%); in 22 of these we have isolated a mutation on each allele. The majority of the mutations introduce a premature termination codon. We sequenced the region between the two genes in 10 of the 20 cases in which we had not identified a mutation in either gene, revealing only one SNP that was not a common polymorphism. As we have not identified mutations in either gene in 20 cases (31%) it is possible that there is further genetic heterogeneity.

  11. Identification of Novel Source of Resistance and Differential Response of Allium Genotypes to Purple Blotch Pathogen, Alternaria porri (Ellis) Ciferri.

    PubMed

    Nanda, Satyabrata; Chand, Subodh Kumar; Mandal, Purander; Tripathy, Pradyumna; Joshi, Raj Kumar

    2016-12-01

    Purple blotch, caused by Alternaria porri (Ellis) Cifferi, is a serious disease incurring heavy yield losses in the bulb and seed crop of onion and garlic worldwide. There is an immediate need for identification of effective resistance sources for use in host resistance breeding. A total of 43 Allium genotypes were screened for purple blotch resistance under field conditions. Allium cepa accession 'CBT-Ac77' and cultivar 'Arka Kalyan' were observed to be highly resistant. In vitro inoculation of a selected set of genotypes with A. porri, revealed that 7 days after inoculation was suitable to observe the disease severity. In vitro screening of 43 genotypes for resistance to A. porri revealed two resistant lines. An additional 14 genotypes showed consistent moderate resistance in the field as well as in vitro evaluations. Among the related Allium species, A. schoenoprasum and A. roylei showed the least disease index and can be used for interspecific hybridization with cultivated onion. Differential reaction analysis of three A. porri isolates (Apo-Chiplima, Apn-Nasik, Apg-Guntur) in 43 genotypes revealed significant variation among the evaluated Allium species (P = 0.001). All together, the present study suggest that, the newly identified resistance sources can be used as potential donors for ongoing purple blotch resistance breeding program in India.

  12. Truncation and microdeletion of EVC/EVC2 with missense mutation of EFCAB7 in Ellis-van Creveld syndrome.

    PubMed

    Nguyen, Tran Quynh Nhu; Saitoh, Makiko; Trinh, Huu Tung; Doan, Nguyen Minh Thien; Mizuno, Yoko; Seki, Masafumi; Sato, Yusuke; Ogawa, Seishi; Mizuguchi, Masashi

    2016-09-01

    Ellis-van Creveld syndrome (EvC) is a ciliopathy with cardiac anomalies, disproportionate short stature, polydactyly, dystrophic nails and oral defects. To obtain further insight into the genetics of EvC, we screened EVC/EVC2 mutations in eight Vietnamese EvC patients. All the patients had a congenital heart defect with atypical oral and/or skeletal abnormalities. One had compound heterozygous EVC2 mutations: a novel mutation c.769G > T-p.E177X in exon 6 inherited from father and another previously reported c.2476C > T-p.R826X mutation in exon 14 inherited from mother. The EVC2 mRNA expression level was significantly lower in the patient and her parents compared to controls. Another case had a novel heterozygous EVC mutation (c.1717C > G-p.S572X) in exon 12, inherited from his father. Of note, the mother without any EVC mutation on Sanger sequencing showed a lower expression level of EVC mRNA compared with controls. SNP array analysis revealed that the patient and mother had a heterozygous 16.4 kb deletion in EVC. This patient also had a heterozygous novel variant in exon 9 of EFCAB7 (c.1171 T > C-p.Y391H), inherited from his father. The atypical cardiac phenotype of this patient and the father suggested that EFCAB7 may modify the phenotype by interacting with EVC. In conclusion, we detected two novel nonsense mutations and a partial deletion of EVC/EVC2 in two Vietnamese families with EvC. Moreover, we found in one family a missense mutation of EFCAB7, a possible modifier gene in EvC and its related disorders.

  13. OBSERVATIONAL UPPER BOUND ON THE COSMIC ABUNDANCES OF NEGATIVE-MASS COMPACT OBJECTS AND ELLIS WORMHOLES FROM THE SLOAN DIGITAL SKY SURVEY QUASAR LENS SEARCH

    SciTech Connect

    Takahashi, Ryuichi; Asada, Hideki

    2013-05-01

    The latest result in the Sloan Digital Sky Survey Quasar Lens Search (SQLS) has set the first cosmological constraints on negative-mass compact objects and Ellis wormholes. There are no multiple images lensed by the above two exotic objects for {approx}50, 000 distant quasars in the SQLS data. Therefore, an upper bound is put on the cosmic abundances of these lenses. The number density of negative-mass compact objects is n < 10{sup -8}(10{sup -4}) h {sup 3} Mpc{sup -3} at the mass scale |M| > 10{sup 15}(10{sup 12}) M{sub Sun }, which corresponds to the cosmological density parameter |{Omega}| < 10{sup -4} at the galaxy and cluster mass range |M| = 10{sup 12-15} M{sub Sun }. The number density of the Ellis wormhole is n < 10{sup -4} h {sup 3} Mpc{sup -3} for a range of the throat radius a = 10-10{sup 4} pc, which is much smaller than the Einstein ring radius.

  14. The Ellis Island Effect

    PubMed Central

    Husain, Fasahath; Veeranagouda, Yaligara; Boente, Renata; Tang, Kevin; Mulato, Gabriela; Wexler, Hannah M

    2014-01-01

    Objectives: Bacteroides fragilis, a Gram-negative anaerobic bacterium, is alternately a gut commensal or virulent pathogen and is an important reservoir for horizontal gene transfer (HGT) of bacterial resistance and virulence genes in the human gastrointestinal tract. We identified a unique conjugative transposon (CTn) in a multidrug resistant clinical isolate of B. fragilis (BF-HMW615); we named this element CTnHyb because it included a hybrid mosaic of foreign elements. This study reports the characterization of CTnHyb and discusses the potential impact on horizontal spread of resistance genes. Results: CTnHyb contains several efflux pump genes and several genes that confer or may confer antibiotic resistance to tetracycline, kanamycin, metronidazole and spectinomycin (truncated gene). CTnHyb also contains a mosaic of mobile elements from Gram-positive organisms. CTnHyb is easily transferred from BF-HMW615 (the original isolate) to BF638R (lab strain) and integrated into the BF638R chromosome. The “foreign” (from Gram-positive bacteria) nucleotide sequences within CTnHyb were > 99% preserved indicating that the gene acquisition from the Gram-positive bacteria was very recent. Conclusion: CTnHyb is a novel CTn residing in a multidrug resistant strain of B. fragilis. The global nature and wide phylogenetic reach of HGT means that any gene in any bacterium can potentially be mobilized. Understanding the mechanisms that drive the formation and transfer of these elements and, potentially, ways to limit the transfer are necessary to prevent a devastating spread of resistance elements. PMID:25165618

  15. Reaction to the Special Section on Supervision Research: Comment on Ellis et al (1996); Ladany et al (1996); Neufeldt et al (1996); and Worthen and McNeill (1996).

    ERIC Educational Resources Information Center

    Holloway, Elizabeth; Carroll, Michael

    1996-01-01

    Both the postpositivistic (Ellis, Ladany, Krengel, and Schult, 1996; Ladany, Hill, Corbett, and Nutt, 1996) and interpretive (Neufeldt, Karno, and Nelson, 1996; Worthen and McNeill, 1996) studies in this special section on supervision research are reviewed from the perspective of rigor and relevancy to the critical questions facing educators and…

  16. Novel homozygous mutations in the EVC and EVC2 genes in two consanguineous families segregating autosomal recessive Ellis-van Creveld syndrome.

    PubMed

    Aziz, Abdul; Raza, Syed I; Ali, Salman; Ahmad, Wasim

    2016-01-01

    Ellis-van Creveld syndrome (EVC) is a rare developmental disorder characterized by short limbs, short ribs, postaxial polydactyly, dysplastic nails, teeth, oral and cardiac abnormalities. It is caused by biallelic mutations in the EVC or EVC2 gene, separated by 2.6 kb of genomic sequence on chromosome 4p16. In the present study, we have investigated two consanguineous families of Pakistani origin, segregating EVC in autosomal recessive manner. Linkage in the families was established to chromosome 4p16. Subsequently, sequence analysis identified a novel nonsense mutation (p.Trp234*) in exon 8 of the EVC2 gene and 15 bp duplication in exon 14 of the EVC gene in the two families. This further expands the mutations in the EVC or EVC2 genes resulting in the EVC syndrome.

  17. Ellis-van Creveld syndrome in a fetus with rhizomelia and polydactyly. Report of a case diagnosed by genetic analysis, and correlation with pathological andradiologic findings.

    PubMed

    Peraita-Ezcurra, Milena; Martínez-García, Mónica; Ruiz-Pérez, Víctor L; Sánchez-Gutiérrez, María Eugenia; Fenollar-Cortés, María; Vélez-Monsalve, Camilo; Ramos-Corrales, Carmen; Pastor, Ignacio; Santonja, Carlos; Trujillo-Tiebas, María José

    2012-05-10

    Ellis-van Creveld syndrome is an autosomal recessive disorder mainly characterized by a disproportionate limb dwarfism, chondroectodermal dysplasia, congenital heart disease, postaxial polydactyly, and dysplastic fingernails and teeth. Only 300 cases have been published worldwide. We report a 21-week fetus with rhizomelia and polydactyly detected. Gross photographs, radiologic studies and pathological study were performed leading to the clinico-pathological suspicion of EvC. DNA from fresh fetal tissue was extracted for sequencing the EVC and EVC2 genes. p.W215X and p.R677X mutations were identified in the EVC2 gene in the fetal sample. Parental sample analysis showed the p.W215X mutation to be inherited from the mother and the p.R677X mutation from the father. The clinical information is essential not only to arrive at a correct diagnosis in fetuses with pathologic ultrasound findings, but also to offer a proper genetic counseling to the parents and their relatives.

  18. Two novel heterozygous mutations of EVC2 cause a mild phenotype of Ellis-van Creveld syndrome in a Chinese family.

    PubMed

    Shen, Wenjing; Han, Dong; Zhang, Jin; Zhao, Hongshan; Feng, Hailan

    2011-09-01

    Ellis-van Creveld syndrome (EvC, chondroectodermal dysplasia; OMIM 225500) is an autosomal recessive skeletal dysplasia with associated multisystem involvement. The syndrome is characterized by short limbs, short ribs, postaxial polydactyly, dysplastic nails, and abnormal teeth. Congenital heart defects occur in 50-60% of cases. In this study, we report EvC in a 6-year-old Chinese girl with hypodontia and polydactyly, mild short stature, and abnormalities of the knee joints. No signs of short ribs, narrow thorax, or congenital heart defects were found in this patient. The EvC phenotype shares some similarity with Weyers acrofacial dysostosis (Weyer; OMIM 193530), an autosomal dominant disorder clinically characterized by mild short stature, postaxial polydactyly, nail dystrophy, and dysplastic teeth. Mutations in EVC or EVC2 are associated with both EvC syndrome and Weyers acrodental dysostosis, but the two conditions differ in the severity of the phenotype and their pattern of inheritance. In this study, two novel heterozygous EVC2 mutations, IVS5-2A > G and c.2653C > T (Arg885X), were identified in the patient. The IVS5-2A > G mutation was inherited from the patient's mother and the c.2653C > T from her father. Her parents have no phenotypic symptoms similar to those of the patient. These findings extend the mutation spectrum of this malformation syndrome and provide the possibility of prenatal diagnosis for future offspring in this family.

  19. A Turkish family with Ellis-van Creveld syndrome in six siblings; linkage analysis on 4p16 region (D4S3360-D4S2366).

    PubMed

    Cağdaş, D N; Parlar, A I; Pac, A; Tutun, U; Balci, S

    2008-01-01

    We present a Turkish family and their 6 children, consecutively affected by Ellis-van Creveld (EVC) Syndrome. Four of the affected children died in the postnatal period, and 2 of them had been admitted to the pediatric cardiology department for their cardiologic evaluation. Since they had the features of the EVC Syndrome, linkage analysis was performed with the polymorphic markers, D4S3360-D4S2366, selected from 4p 16 locus. There was complete segregation between the disease and marker allels and the two affected siblings were homozygote for the polymorphic markers, as expected in autosomal recessive inheritance. The diagnosis of EVC Syndrome was confirmed by this molecular analysis. Two cases with EVC were presented in this report. Case 1 had partial abnormal pulmonary venous return and pulmonary stenosis additional to ostium primum atrial septal defect and mitral cleft. Partial abnormal pulmonary venous return and pulmonary stenosis were previously not reported with EVC Syndrome. Postaxial polydactyly phenotype of the Case 2 differs from her brother's. There is bifid 5th metacarpal and unilateral (L) bifid middle and distal phalanges resembling syndactyly.

  20. The influence of secretion elicitors and external pH on the kinetics of D-alanine uptake by the trap lobes of Dionaea muscipula Ellis (Venus's Flytrap).

    PubMed

    Rea, P A; Whatley, F R

    1983-08-01

    Simple kinetic techniques were used to examine the mechanism of D-alanine uptake by the adaxial surfaces of the trap lobes of Dionaea muscipula Ellis (Venus's Flytrap.) On the basis of these analyses, the uptake of D-alanine was found to depend on the time during which the trap lobes were inoculated with elicitors of secretion before excision and measurement of uptake. Disks taken from traps that had not been subjected to a preceding period of inoculation with secretion elicitors showed a low basal rate of uptake which was neither pH-dependent nor exhibited saturation with respect to external D-alanine concentration. Disks from preinoculated traps, on the other hand, displayed an enhanced rate of uptake which showed both pH-dependence and saturation with respect to external D-alanine concentration. The capacity for enhanced uptake was lost upon prolonged inoculation or when inoculation was stopped. Of the compounds tested, only elicitors of secretion caused an enhancement of uptake. The enhanced rate of D-alanine uptake is temperature-sensitive with a Q10 characteristic of a mediated process. Uncouplers cause an instantaneous abolition of uptake whereas the effects of terminal-oxidase inhibitors are time-dependent. The pH-dependence of uptake is inferred to result from an increased affinity of the carrier system for D-alanine at low pH values. Although the ionic state of D-alanine is relatively unaffected over the pH range examined, a decrease in the external pH from 6.0 to 3.8 decreases the apparent K m for uptake by four-fold but increases V max by only 30%. It is concluded that the acid secreted by the digestive glands of Dionaea plays a direct role in facilitating the uptake of amino acids from the trap cavity.

  1. Ellis-Van Creveld Dysplasia

    MedlinePlus

    ... We Offer > Medical Specialties & Services > Skeletal Dysplasia Medical Services Skeletal Dysplasia Definitions Achondroplasia Campomelic Dysplasia Cartilage Hair Hypoplasia Diastrophic Dysplasia ...

  2. Ellis-van Creveld syndrome

    MedlinePlus

    ... Exams and Tests Signs of this condition include: Growth hormone deficiency Heart defects, such as a hole in ... More Autosomal recessive Breathing difficulty Congenital heart disease Growth hormone deficiency - children Review Date 8/1/2015 Updated ...

  3. Specific variants in WDR35 cause a distinctive form of Ellis-van Creveld syndrome by disrupting the recruitment of the EvC complex and SMO into the cilium

    PubMed Central

    Caparrós-Martín, José A.; De Luca, Alessandro; Cartault, François; Aglan, Mona; Temtamy, Samia; Otaify, Ghada A.; Mehrez, Mennat; Valencia, María; Vázquez, Laura; Alessandri, Jean-Luc; Nevado, Julián; Rueda-Arenas, Inmaculada; Heath, Karen E.; Digilio, Maria Cristina; Dallapiccola, Bruno; Goodship, Judith A.; Mill, Pleasantine; Lapunzina, Pablo; Ruiz-Perez, Victor L.

    2015-01-01

    Most patients with Ellis-van Creveld syndrome (EvC) are identified with pathogenic changes in EVC or EVC2, however further genetic heterogeneity has been suggested. In this report we describe pathogenic splicing variants in WDR35, encoding retrograde intraflagellar transport protein 121 (IFT121), in three families with a clinical diagnosis of EvC but having a distinctive phenotype. To understand why WDR35 variants result in EvC, we analysed EVC, EVC2 and Smoothened (SMO) in IFT-A deficient cells. We found that the three proteins failed to localize to Wdr35−/− cilia, but not to the cilium of the IFT retrograde motor mutant Dync2h1−/−, indicating that IFT121 is specifically required for their entry into the ciliary compartment. Furthermore expression of Wdr35 disease cDNAs in Wdr35−/− fibroblasts revealed that the newly identified variants lead to Hedgehog signalling defects resembling those of Evc−/− and Evc2−/− mutants. Together our data indicate that splicing variants in WDR35, and possibly in other IFT-A components, underlie a number of EvC cases by disrupting targeting of both the EvC complex and SMO to cilia. PMID:25908617

  4. Specific variants in WDR35 cause a distinctive form of Ellis-van Creveld syndrome by disrupting the recruitment of the EvC complex and SMO into the cilium.

    PubMed

    Caparrós-Martín, José A; De Luca, Alessandro; Cartault, François; Aglan, Mona; Temtamy, Samia; Otaify, Ghada A; Mehrez, Mennat; Valencia, María; Vázquez, Laura; Alessandri, Jean-Luc; Nevado, Julián; Rueda-Arenas, Inmaculada; Heath, Karen E; Digilio, Maria Cristina; Dallapiccola, Bruno; Goodship, Judith A; Mill, Pleasantine; Lapunzina, Pablo; Ruiz-Perez, Victor L

    2015-07-15

    Most patients with Ellis-van Creveld syndrome (EvC) are identified with pathogenic changes in EVC or EVC2, however further genetic heterogeneity has been suggested. In this report we describe pathogenic splicing variants in WDR35, encoding retrograde intraflagellar transport protein 121 (IFT121), in three families with a clinical diagnosis of EvC but having a distinctive phenotype. To understand why WDR35 variants result in EvC, we analysed EVC, EVC2 and Smoothened (SMO) in IFT-A deficient cells. We found that the three proteins failed to localize to Wdr35(-/-) cilia, but not to the cilium of the IFT retrograde motor mutant Dync2h1(-/-), indicating that IFT121 is specifically required for their entry into the ciliary compartment. Furthermore expression of Wdr35 disease cDNAs in Wdr35(-/-) fibroblasts revealed that the newly identified variants lead to Hedgehog signalling defects resembling those of Evc(-/-) and Evc2(-/-) mutants. Together our data indicate that splicing variants in WDR35, and possibly in other IFT-A components, underlie a number of EvC cases by disrupting targeting of both the EvC complex and SMO to cilia.

  5. Long interspersed nuclear element-1 (LINE1)-mediated deletion of EVC, EVC2, C4orf6, and STK32B in Ellis-van Creveld syndrome with borderline intelligence.

    PubMed

    Temtamy, Samia A; Aglan, Mona S; Valencia, Maria; Cocchi, Guido; Pacheco, Maria; Ashour, Adel M; Amr, Khalda S; Helmy, Sanaa M H; El-Gammal, Mona A; Wright, Michael; Lapunzina, Pablo; Goodship, Judith A; Ruiz-Perez, Victor L

    2008-07-01

    Previous work has shown Ellis-van Creveld (EvC) patients with mutations either in both alleles of EVC or in both alleles of EVC2. We now report affected individuals with the two genes inactivated on each allele. In a consanguineous pedigree diagnosed with EvC and borderline intelligence, we detected a 520-kb homozygous deletion comprising EVC, EVC2, C4orf6, and STK32B, caused by recombination between long interspersed nuclear element-1 (LINE-1 or L1) elements. Patients homozygous for the deletion are deficient in EVC and EVC2 and have no increase in the severity of the EvC typical features. Similarly deletion carriers demonstrate absence of digenic inheritance in EvC. Further, the phenotype of these patients suggests that the EVC-STK32B deletion also leads to mild mental retardation and reveals that loss of the novel genes C4orf6 and STK32B causes at most mild mental deficit. In an EvC compound heterozygote of different ethnic origin we identified the same LINE-to-LINE rearrangement due to a different recombination event. These findings highlight the importance of L1 repetitive sequences in human genome architecture and disease.

  6. Chronic and catastrophic natural mortality of three common Caribbean reef corals

    NASA Astrophysics Data System (ADS)

    Bythell, J. C.; Gladfelter, E. H.; Bythell, M.

    1993-11-01

    Compared to catastrophic impacts from storms, disease epidemics and bleaching events, little is known about the effects of more routine chronic mortality in reef corals. To monitor this ongoing mortality, monthly visual assessments of the cause of tissue damage were related to mortality rates (changes in planar surface area) of tagged colonies of three common reef corals: Montastrea annularis, Porites astreoides and Diploria strigosa at Buck Island Reef National Monument, St. Croix, US Virgin Islands. During the study Hurricane Hugo, the most powerful cyclone to affect the area in at least 60 y, made a direct impact on the site. Effects of the hurricane were extremely localized, with certain exposed sites being almost completely razed while others showed no detectable changes in community structure. Mortality caused both by the hurricane and by other factors during the 26 month study varied between species and also between site locations around the island. Differences in susceptibility were not dependent solely on gross morphology, because two robust, massive species showed opposite responses to hurricane damage and chronic mortality. Diploria strigosa was virtually unaffected by chronic factors, but was heavily damaged at exposed sites during the hurricane. In contrast, mortality from predation and tissue necrosis was high in Montastrea annularis, but it largely escaped damage from the hurricane because it was absent from the most severely scoured locations. Porites astreoides, with populations dominated by much smaller colonies, was affected by both chronic and hurricanerelated mortality. Differences in susceptibility to the various types of natural disturbance among species, coupled with high spatial and temporal variability in the effects of such disturbances, may be critical to the maintenance of species diversity on the reef.

  7. Changes in trace and minor constituents and associated micro-architecture of Montastrea faveolata during time of "stress"

    USGS Publications Warehouse

    Holmes, C.W.; Buster, N.A.; Sorauf, J.E.; Hudson, J.H.; Kester, C.

    2003-01-01

    As corals grow, they secrete a calcareous skeleton with the aid of photosynthetic activity of endosymbiotic dinoflagellates. The rate of this secretion varies annually which produces annual bands. Entrapped with the carbonate are trace substances that record the chemistry of the surrounding ocean. Detailing these changes in chemistry requires careful high-resolution sampling. New procedures involving laser ablation inductive couple plasma mass spectroscopy (LA-ICP/MS) provides a unique method that does not involve tedious sample preparation. The La-ICP/MS data for a series of Atlantic corals from Looe Key, U.S. Florida Keys shows an intriguing distribution trace and minor elements whose concentrations are related to reported bleaching events. SEM data from the layers exhibit a change in crystal habit concurrent with the changes in chemistry. These changes reflected the affect of the variable influence of the symbiotic algae on the development of the coral skeleton.

  8. A newly thermoactive and detergent-stable lipase from annular sea bream (Diplodus annularis): Biochemical properties.

    PubMed

    Smichi, Nabil; Miled, Nabil; Gargouri, Youssef; Fendri, Ahmed

    2017-01-01

    A lipolytic activity was located in the annular seabream pyloric caeca, from which a digestive lipase (AsDL) was purified. Pure AsDL has an apparent molecular mass of 50 kDa. The purified lipase is thermoactive as it displays its maximal activity on short- and long-chain triacylglycerols at a temperature of 50 °C. The enzyme is alkaline resistant as it retains 90% of its maximal activity when incubated during 1 H at pH 10. No colipase was detected in the annular seabream pyloric caeca. Similar results were reported for the sardine and the gray mullet digestive systems. This is in line with the idea that colipase might have evolved in mammal animals simultaneously with the appearance of an exocrine pancreas. AsDL is a serine enzyme, like all known lipases from different origins. Interestingly, the pure lipase was found to be insensitive to Triton X-100, a synthetic detergent, addition even at a concentration as high as 12 mM. The purified enzyme has potential applications in detergent and food industry because of its thermal activity and alkaline nature.

  9. Charge induced closing of Dionaea muscipula Ellis trap.

    PubMed

    Volkov, Alexander G; Adesina, Tejumade; Jovanov, Emil

    2008-11-01

    In terms of bioelectrochemistry, Venus flytrap responses can be considered in three stages: stimulus perception, electrical signal transmission, and induction of mechanical and biochemical responses. When an insect touches the trigger hairs, these mechanosensors generate receptor potentials, which induce solitary waves activating the motor cells. We found that the electrical charge injected between a midrib and a lobe closes the Venus flytrap leaf by activating motor cells without mechanical stimulation of trigger hairs. The mean electrical charge required for the closure of the Venus flytrap leaf is 13.6 muC. To close the trap, electrical charge can be submitted as a single charge or applied cumulatively by small portions during a short period of time. Ion channel blocker such as Zn(2+) as well as an uncoupler CCCP, dramatically decreases the speed of the trap closing a few hours after treatment of the soil. This effect is reversible. After soil washing by distilled water, the closing time of Venus flytrap treated by CCCP or ZnCl(2) decreases back from 2-5 s to 0.3 s, but higher electrical charge is needed for trap closure. The mechanism behind closing the upper leaf of Venus flytrap is discussed.

  10. Jessica Ann Ellis Gold Star Fathers Act of 2010

    THOMAS, 111th Congress

    Sen. Wyden, Ron [D-OR

    2010-07-26

    12/17/2010 By Senator Lieberman from Committee on Homeland Security and Governmental Affairs filed written report. Report No. 111-374. (All Actions) Tracker: This bill has the status Passed SenateHere are the steps for Status of Legislation:

  11. Genetics Home Reference: Ellis-van Creveld syndrome

    MedlinePlus

    ... genes are thought to help regulate the Sonic Hedgehog signaling pathway. This pathway plays roles in cell ... condition. Studies suggest that they prevent normal Sonic Hedgehog signaling in the developing embryo, disrupting the formation ...

  12. Water flow influences oxygen transport and photosynthetic efficiency in corals

    NASA Astrophysics Data System (ADS)

    Finelli, Christopher M.; Helmuth, Brian S. T.; Pentcheff, N. Dean; Wethey, David S.

    2006-03-01

    Recent studies indicate that the incidence and persistence of damage from coral reef bleaching are often highest in areas of restricted water motion, and that resistance to and recovery from bleaching is increased by enhanced water motion. We examined the hypothesis that water motion increases the efflux of oxygen from coral tissue thereby reducing oxidative stress on the photosynthetic apparatus of endosymbiotic zooxanthellae. We experimentally exposed colonies of Montastrea annularis and Agaricia agaricites to manipulations of water flow, light intensity, and oxygen concentration in the field using a novel mini-flume. We measured photosynthetic efficiency using a pulse amplitude modulated fluorometer to test the short-term response of corals to our manipulations. Under normal oxygen concentrations, A. agaricites showed a significant 8% increase in photosynthetic efficiency from 0.238 (± 0.032) in still water to 0.256 (± 0.037) in 15 cm s-1 flow, while M. annularis exhibited no detectable change. Under high-ambient oxygen concentrations, the observed effect of flow on A. agaricites was reversed: photosynthetic efficiencies showed a significant 11% decrease from 0.236 (± 0.056) in still water to 0.211 (± 0.048) in 15 cm s-1 flow. These results support the hypothesis that water motion helps to remove oxygen from coral tissues during periods of maximal photosynthesis. Flow mitigation of oxidative stress may at least partially explain the increased incidence and severity of coral bleaching in low flow areas and observations of enhanced recovery in high-flow areas.

  13. Development of Miocene-Pliocene reef trend, St. Croix, U. S. Virgin Islands

    SciTech Connect

    Gill, I.; Eby, D.E.; Hubbard, D.K.; Frost, S.H.

    1988-01-01

    The Miocene-Pliocene reef trend on St. Croix, U.S. Virgin Islands, rims the present southern western coasts of the island and includes accompanying lagoonal and forereef facies. The reef trend was established on a foram-algal bank facies that represents basinal shallowing from the deep-water pelagic and hemipelagic facies of the Miocene Kingshill Limestone. Information on facies distribution and thickness is derived from rock exposures and 22 test wells drilled to a maximum depth of 91 m. The greatest thickness of the reef facies exists in a subsidiary graben on the south coast of St. Croix. The thickness of the reef section in this locality is due to preservation of the section in a downdropped block. Reef faunas include extant corals, as well as several extinct genera. Extant corals (e.g. Montastrea annularis, Diploria sp., and Porites porites) and extinct corals (e.g., Stylophora affinis, Antillea bilobata, and Thysanus sp.) are the main reef frame-builders. Coralline algea and large benthic foraminifera are significant contributors to the sediments both prior to and during scleractinian reef growth. Dolomitization and calcite cementation occur prominantly in an area corresponding to a Holocene lagoon. The spatial distribution of the dolomite suggests that the lagoon is a Tertiary feature directly related to the dolomitization process. Stable isotopic values suggest dolomitization of fluids of elevated salinity.

  14. Short-term ecological consequences of a major oil spill on Panamanian subtidal reef corals

    NASA Astrophysics Data System (ADS)

    Guzmán, Héctor M.; Jackson, Jeremy B. C.; Weil, Ernesto

    1991-07-01

    A major oil spill (8,000,000 liters; 50,000 barrels) occurred in Bahía Las Minas on the Caribbean coast of Panama in April 1986, and oil slicks from the refinery landfill and mangroves were still common there after 21/2 years. We studied short-term effects of the spill on common shallow subtidal reef corals, at the individual, population, and community levels. Numbers of corals, total coral cover, and species diversity based on cover decreased significantly with increased amounts of oiling. Cover of the large branching coral Acropora palmata decreased most. Frequency and size of recent injuries on massive corals increased with level of oiling, particularly for Siderastrea siderea. Growth of three massive species ( Porites astreoides, Diploria strigosa, and Montastrea annularis, but not S. siderea) was less at oiled reefs in the year of the spill than during the 9 previous years. Subtidal coral reefs, particularly those along protected coasts, may suffer extensive damage from chronic exposure after major oil spills.

  15. A novel method for the transport and analysis of genetic material from polyps and zooxanthellae of scleractinian corals.

    PubMed

    Crabbe, M James C

    2003-08-29

    We have developed a new simple method for transport, storage, and analysis of genetic material from the corals Agaricia agaricites, Dendrogyra cylindrica, Eusmilia ancora, Meandrina meandrites, Montastrea annularis, Porites astreoides, Porites furcata, Porites porites, and Siderastrea siderea at room temperature. All species yielded sufficient DNA from a single FTA card (19 microg-43 ng) for subsequent PCR amplification of both coral and zooxanthellar DNA. The D1 and D2 variable region of the large subunit rRNA gene (LSUrDNA) was amplified from the DNA of P. furcata and S. siderea by PCR. Electrophoresis yielded two major DNA bands: an 800-base pair (bp) DNA, which represented the coral ribosomal RNA (rRNA) gene, and a 600-bp DNA, which represented the zooxanthellar srRNA gene. Extraction of DNA from the bands yielded between 290 microg total DNA (S. siderea coral DNA) and 9 microg total DNA (P. furcata zooxanthellar DNA). The ability to transport and store genetic material from scleractinian corals without resort to laboratory facilities in the field allows for the molecular study of a far wider range and variety of coral sites than have been studied to date.

  16. A matter of scale: damage from Hurricane Hugo (1989) to U.S. Virgin Islands reefs at the colony, community and whole reef level

    USGS Publications Warehouse

    Rogers, Caroline S.

    1993-01-01

    Studies at Buck Island Reef National Monument (St. Croix) and Virgin Islands National Park (St. John) by scientists in the U.S. National Park Service Coral Reef Assessment Program re- vealed the effects of Humcane Hugo on individual coral species, community parameters, and overall reef structure. Effects of the storm varied with depth, coral species, location relative to the storm path, character of the pre-storm communities, and ecological history. Live coral cover, initially less than 30% at all sites, dropped by 40 to 73%. Cover by the dominant species Montastrea annularis de- clined about 35% on the St. John reefs. At Buck Island, Acropora palmata cover, already reduced from 85% to 5% by white band disease and storms, fell to 0.8% after Hugo. Some areas on the south side of Buck Island were reduced to rubble pave- ment while other areas escaped serious damage. Data from cores at Buck Island reveal the influence of wave energy and storm frequency on overall reef character. Patchiness and variation in the responses of different species, zones, and entire reefs to the storm suggest that assessment of long-term trends in reef structure and composition requires analysis of changes at permanent study sites distributed over large areas.

  17. Time-averaged fluxes of lead and fallout radionuclides to sediments in Florida Bay

    USGS Publications Warehouse

    Robbins, J.A.; Holmes, C.; Halley, R.; Bothner, M.; Shinn, E.; Graney, J.; Keeler, G.; TenBrink, M.; Orlandini, K.A.; Rudnick, D.

    2000-01-01

    Recent, unmixed sediments from mud banks of central Florida Bay were dated using 210Pb/226Ra, and chronologies were verified by comparing sediment lead temporal records with Pb/Ca ratios in annual layers of coral (Montastrea annularis) located on the ocean side of the Florida Keys. Dates of sediment lead peaks (1978 ?? 2) accord with prior observations of a 6 year lag between the occurrence of maximum atmospheric lead in 1972 and peak coral lead in 1978. Smaller lags of 1-2 years occur between the maximum atmospheric radionuclide fallout and peaks in sediment temporal records of 137Cs and Pu. Such lags are consequences of system time averaging (STA) in which atmospherically delivered particle-associated constituents accumulate and mix in a (sedimentary?) reservoir before transferring to permanent sediments and coral. STA model calculations, using time-dependent atmospheric inputs, produced optimized profiles in excellent accord with measured sediment 137Cs, Pu, lead, and coral lead distributions. Derived residence times of these particle tracers (16 ?? 1, 15.7 ?? 0.7, 19 ?? 3, and 16 ?? 2 years, respectively) are comparable despite differences in sampling locations, in accumulating media, and in element loading histories and geochemical properties. For a 16 year weighted mean residence time, STA generates the observed 6 year lead peak lag. Evidently, significant levels of nondegradable, particle-associated contaminants can persist in Florida Bay for many decades following elimination of external inputs. Present results, in combination with STA model analysis of previously reported radionuclide profiles, suggest that decade-scale time averaging may occur widely in recent coastal marine sedimentary environments. Copyright 2000 by the American Geophysical Union.

  18. Oceanographic coral records from South Western Caribbean: Isla Fuerte, Colombia

    NASA Astrophysics Data System (ADS)

    Bernal, G.; Qiceno, M.; Hughen, K.; Urrego, L.

    2009-04-01

    The southwestern corner of the Caribbean Sea is considered a coastal warm pool oceanographically linked to the Panama Colombia Gyre. The atmosphere - ocean variability there is influenced by the Intertropical Convergence Zone (ITZC), the Andean river runoff, the northeasterly trade winds, and a tropical low level jet (San Andrés jet), all of them connected to global variability. This warm pool has a significant (>95%) warming trend (0.6°C between 1981 and 2000), with the warmest record just in front of the Sinu River, where Isla Fuerte is located, 11 km from the coast, to the western of Sinu Delta. Sea surface temperature (SST) and the Multivariate ENSO index have a significant (>95%) correlation of 0.4 with a 7 months lag. The Sinu River flow does not show a long trend between 1985 and 2000, but has a significant correlation with ENSO (0.5) with no lag. Two corals from Isla Fuerte, a Siderastrea siderea colony with a maximum length of 72.5 cm and a Montastrea annularis colony of 30.5 cm, were studied in order to test the climatic potential of these records and to understand the oceanographic variability at the SW Caribbean. Fluorescence has better resolution than density bands in both corals. Chronology based on them indicates an age of 127 and 32 years respectively. We present and discuss growth and Sr/Ca series. The signal is produced by the interaction between the river flow and local winds. The river reaches the island when northeastern winds deflect their plume to the east. However, there are not in situ instrumental records for calibration and interpretation of the signals and we used world data bases with low spatial resolution.

  19. Holocene coral patch reef ecology and sedimentary architecture, Northern Belize, Central America

    SciTech Connect

    Mazzullo, S.J.; Anderson-Underwood, K.E.; Burke, C.D.; Bischoff, W.D. )

    1992-12-01

    Coral patch reefs are major components of Holocene platform carbonate facies systems in tropical and subtropical areas. The biotic composition, growth and relationship to sea level history, and diagenetic attributes of a representative Holocene patch reef ([open quotes]Elmer Reef[close quotes]) in the Mexico Rocks complex in northern Belize are described and compared to those of Holocene patch reefs in southern Belize. Elmer Reef has accumulated in shallow (2.5 m) water over the last 420 yr, under static sea level conditions. Rate of vertical construction is 0.3-0.5 m/100 yr, comparable to that of patch reefs in southern Belize. A pronounced coral zonation exists across Elmer Reef, with Monastrea annularis dominating on its crest and Acropora cervicornis occurring on its windward and leeward flanks. The dominance of Montastrea on Elmer Reef is unlike that of patch reefs in southern Belize, in which this coral assumes only a subordinate role in reef growth relative to that of Acropora palmata. Elmer Reef locally is extensively biodegraded and marine, fibrous aragonite and some bladed high-magnesium calcite cements occur throughout the reef section, partially occluding corallites and interparticle pores in associated sands. Patch reefs in southern Belize have developed as catch-up and keep-up reefs in a transgressive setting. In contrast, the dominant mode of growth of Elmer Reef, and perhaps other patch reefs in Mexico Rocks, appears to be one of lateral rather than vertical accretion. This style of growth occurs in a static sea level setting where there is only limited accommodation space because of the shallowness of the water, and such reefs are referred to as [open quotes]expansion reefs[close quotes]. 39 refs., 8 figs., 2 tabs.

  20. Species profiles: Life histories and environmental requirements of coastal fishes and invertebrates (south Florida): Reef-building corals. [Acropora cervicornis; Acropora palmata; Montastraea annularis; Montastraea cavernosa

    SciTech Connect

    Porter, J.W.

    1987-08-01

    Four species of reef-building corals are considered: elkhorn coral, staghorn coral, common star coral, and large star coral. All four species spawn annually in the fall during hurricane season. Juvenile recruitment is low in all four species. Rapid growth rates of species in the genus Acropora (10 to 20 cm/yr) contrast with slower growth rates of species in the genus Montastraea (1.0 to 2.0 cm/yr), but both species of Montastraea are also important in reef development due to their form and great longevity. Shallow-water colonies of Montastraea survive hurricanes; shallow colonies of Acropora do not. Because of their dependence on photosynthesis for all of their carbon acquisition, the Acropora species reviewed here have a more restricted depth distribution (0 to 30 m) than do the Montastraea species considered (0 to 70 m). All four species are subject to intense predation by the snail predator, Coralliophila. Species of Montastraea are susceptible to infection from blue-green algae, which produce ''black band disease;'' species of Acropora are susceptible to a different, as yet unidentified pathogen, that produces ''white-band'' disease. Increased water turbidity and sedimentation cause reduced growth rates and partial or whole mortality in all four species.

  1. Immigration beyond Ellis Island: Suggestions for Teaching about Immigration in the Now

    ERIC Educational Resources Information Center

    Hossain, Kazi I.

    2014-01-01

    America's history books abound with stories of immigrants who contributed to the development of this country. In terms of social studies curriculum, all states require schools to teach about immigration. However, the question is how to teach this topic in a manner that will give students--elementary through high school--a better understanding of…

  2. Acid phosphatase localization in the digestive glands of Dionaea muscipula Ellis flytraps.

    PubMed

    Henry, Y; Steer, M W

    1985-04-01

    The intracellular localization of acid phosphatases in stimulated digestive glands of Dionaea flytraps has been studied to provide evidence for the route taken by this enzyme during secretion. Previous studies have either included or excluded a role for the dictyosomes in this pathway. Both p-nitrophenyl phosphate and beta-glycerophosphate were used as substrates, and both gave similar localization patterns. Unstimulated glands contained little phosphatase activity in the endomembrane system, whereas 24 and 48 hr after stimulation, heavy deposits of lead were located in the endoplasmic reticulum cisternae, including the nuclear envelope, the dictyosome cisternae, and secretory vesicles. Since dictyosome activation, as judged by the presence of secretory vesicles in the cytoplasm, also coincides with gland stimulation, we conclude that secretion of the hydrolase enzymes occurs via this route and not, as suggested elsewhere, via direct endoplasmic reticulum to plasma membrane connections.

  3. Polarity in mechanoreceptor cells of trigger hairs of Dionaea muscipula Ellis.

    PubMed

    Buchen, B; Hensel, D; Sievers, A

    1983-08-01

    Both the apical and the basal cell poles of the sensory cells in trigger hairs of Dionaea muscipula are structured identically. A complex of concentrically arranged endoplasmic reticulum cisternae occupies each of the poles. One to four vacuoles are enclosed within the central cisterna and contain polyphenols (deposits of "tannin"). Structural polarity, whether symmetric or asymmetric, as well as the occurrence of abundant endoplasmic reticulum and numerous mitochondria are characteristics of the perception cells of most animals and plants.

  4. The nature of the stimuli causing digestive juice secretion in Dionaea muscipula Ellis (venus's flytrap).

    PubMed

    Robins, R J

    1976-01-01

    An investigation into the stimuli of the secretory system in the carnivorous plant Dionaea muscipula is presented. Secretion of fluid and protein are both stimulated by various nitrogenous small molecules. These secretions are studied as a function of time. A new method is described for the collection of secreted juice. Significant differences are found between the quantities of fluid and protein produced in response to different stimuli. The results are discussed in comparison to the mammalian gastro-intestinal secretory systems.

  5. New Kind of Ellis Island as Second-Generation Immigrants Land on College Campuses

    ERIC Educational Resources Information Center

    Hohn, Marcia Drew; Mohammed, Denzil

    2012-01-01

    Demographics in American higher education are changing dramatically. A recent study by the Migration Policy Institute (MPI) reveals that 11.3 million people ages 16 to 26 (one in four) are first- and second-generation immigrants. Moreover, the report continues, between 1995 and 2010, immigrant-origin youth accounted for half of all growth in the…

  6. 78 FR 74009 - Safety Zone; Nike Fireworks, Upper New York Bay, Ellis Island, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-10

    ... is necessary to ensure the safety of vessels and spectators from hazards associated with fireworks... to Mariners and marine information broadcasts. If the COTP determines that the regulated area...

  7. A Resource Guide for Celebrating the Statue of Liberty and Ellis Island, 1986. Bulletin 1783.

    ERIC Educational Resources Information Center

    Kerr, Myrtle; Cookston, James S.

    Compiled to help celebrate the 100th anniversary of the Statue of Liberty, this selection of books, periodicals, audiovisuals, and other educational resources was intended to help stimulate discussion, promote projects, and create awareness of the Statue of Liberty Centennial. Listed are 24 books, 18 magazine articles, and 3 films about the Statue…

  8. Do People Grow on Family Trees? Genealogy for Kids & Other Beginners. The Official Ellis Island Handbook.

    ERIC Educational Resources Information Center

    Wolfman, Ira

    This book offers a comprehensive method for those who seek to discover their own family history. Techniques used for study are pedigree charts, family group sheets, reading relationship charts, and the study of historical immigration movements. Information on how to research family genealogies by way of the family Bible, handling photographs, tape…

  9. Case Summary: Settlement Reached at Middlefield-Ellis-Whisman (MEW) Study Area to Address TCE Contamination

    EPA Pesticide Factsheets

    Case summary of the first amended consent decree with Intel Corporation and Raytheon Company to address trichloroethylene (TC) contamination in residential and commercial buildings in Mountain View, California

  10. "Their Experience Is the Immigrant Experience": Ellis Island, Documentary Film, and Rhetorically Reversible Whiteness

    ERIC Educational Resources Information Center

    Irwin, Meryl J.

    2013-01-01

    Political advocates on the ideological right have long taken seriously what their counterparts on the left have not: white racialized affect. As left activists and scholars have alternately lamented and raged over the steady creep of the "middle" to the "right," they have documented in detail the outcomes of whites' refusal to engage in "genuine"…

  11. Gravity Currents: In the Environment and the Laboratory, Ellis Horwood Series in Environmental Sciences

    NASA Astrophysics Data System (ADS)

    Csanady, G. T.

    There are books and courses on experimental physics, thorough and rigorous, which contain only simple formulae and use only elementary algebra. The subject is explained in lucid and precise language, with the help of many sketches, photos, and diagrams. The book under review belongs to this genre and is in fact one of its most successful members.About half of the book is devoted to the description of a variety of natural phenomena in which gravity currents play an important role. The class of gravity currents is taken to be quite broad, to include almost any kind of quasi-horizontal motion caused by density differences. The range of natural phenomena surveyed is correspondingly great, from tidal bores through thunderstorms to the eruption of Mount St. Helens. The atmospheric examples are especially thorough and interesting. The broad panorama certainly brings home to the reader the many ways in which fluids (including fluidized rock) can move under the influence of gravity. However, not all of the examples show typical gravity behavior, nor are they all treated with equal thoroughness. The Gulf Stream is mentioned, and the variability of its position is shown in an illustration, but this is not connected with anything typical of gravity currents, nor is the important interplay between Earth rotation and such large-scale “gravity currents” (if one insists on calling them that) at all adequately explained.

  12. Immigration: From the Founding of Virginia to the Closing of Ellis Island. An Eyewitness History.

    ERIC Educational Resources Information Center

    Wepman, Dennis

    It can be said that U.S. immigration started in 1607, when the first settlers joined the original colonists on the shores of the United States. Since then, people of every nation, ethnicity, and class have come to the United States, looking for freedom, prosperity, and stability. While originally immigrants flowed freely into the United States,…

  13. Genus III. Turneriella Levett, Morey, Galloway, Steigerwalt, Ellis 2005, 1497AL

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Turneriella are morphologically similar to Leptospira. They are unique within the Leptospiraceae by having distinct DNA sequence composition as demonstrated by DNA hybridization analysis, and a unique 16S rRNA sequence profile. In addition, they are distinguished by having a single periplasmic fla...

  14. Ichnology and paleosubstrates of Austin Chalk (Cretaceous) outcrops: Southern Dallas and Ellis Counties, Texas

    SciTech Connect

    Dawson, W.C. ); Reaser, D.F. )

    1991-03-01

    Ichnofossils are abundant in outcrops of the Austin Chalk near Waxahachie, Texas (designated site of the Super-Conducting Super Collider). The abundance and diversity of ichnofossils in Austin strata contrast with the paucity of other macrofossils, except large inoceramids. The lower Austin Chalk (Coniacian) disconformably overlies the Eagle Ford Shale (Turonian). Planolites, Thalassinoides, and Chondrites are conspicuous in the lower Austin. Some lower Austin strata contain well-preserved burrows having menicus fillings. However, most lower Austin ichnofossils are poorly preserved and have compacted. The middle Austin Marl and upper Austin Chalk (Santonain) contain Planolites, Chondrites, Thalassinoides, and Pseudobilobites. Several thin, intensely burrowed, Fe-stained, horizons within the middle Austin represent omission surfaces having postomission Thalassinoides. The upper Austin disconformably underlies the Taylor Marl (Campanian). The Austin-Taylor contact is a Rhizocorallium-infested omission surface overlain by a condensed bed of phosphatic and pyritic bioclasts. Upper Austin occurrences of Rhizocorallium and Pseudobilobites are unique for North American Cretaceous chalks. Based on cross-cutting relationships and differences in morphology, diameter, and burrow-filling sediments, numerous ichnospecies of Thalassinoides are discernable throughout the Austin. Variations in preservation quality exhibited by successive generations of ichnofossils record progressive changes in substrate consistency. Earliest formed burrows have diffuse outlines representing an initial thixotropic (softground) Austin substrate. Subsequent generations of burrows have more distinct outlines recording a gradual increase in substrate firmness. Paleo-firmgrounds are common in Austin outcrops; evidence of hardgrounds is lacking. The Thalassinoides-dominated Austin ichnoassemblage represents an inner shelf paleoenvironment.

  15. From Ellis Island to LAX: Immigrant Prospects in the American City.

    ERIC Educational Resources Information Center

    Waldinger, Roger

    1996-01-01

    Argues that the economic and political structures of the immigrant receiving areas shape immigrant trajectories. Provides a comparative discussion that examines how the distinctive urban contexts of immigrant receiving areas, such as New York City and Los Angeles, differ in shaping immigrants' future prospects in assimilating within their new…

  16. A Comparison of Rational Emotive Therapy and Tibetan Buddhism: Albert Ellis and the Dalai Lama

    ERIC Educational Resources Information Center

    Holt, Susan A; Austad, Carol Shaw

    2013-01-01

    This article explores conceptual and methodological similarities between Rational Emotive Behavior Therapy (REBT) and Tibetan Buddhism (TB). The authors examine some of the values and concepts they share. They compare the two systems on a number of issues: philosophical underpinnings, concepts of what causes human psychopathology, techniques to…

  17. Saco River-Camp Ellis Harbor, Saco, Maine. Small Navigation Project, Detailed Project Report and Environmental Assessment.

    DTIC Science & Technology

    1981-12-01

    Evaluating and comparing the economic, social and environmental impacts of the alternative plans. 5. Determining if improvements are feasible and, if so...recommending improvements to anchorage facilities that are economically feasible, socially beneficial and environmentally acceptable. Although this study... market in local residents, tourists, restaurants, and retail stores all over the northeastern United States. The major commercial activity at Camp

  18. Is Angel Island the Ellis Island of the West? Teaching Multiple Perspective-Taking in American Immigration History

    ERIC Educational Resources Information Center

    Ciardiello, A. Vincent

    2012-01-01

    Education in the twenty-first century requires that all students learn the social studies skills that help them understand the complex issues related to civic ideals and practices. One of these skills is developing multiple perspective-taking. Many educators believe that this critical thinking ability is not only for upper level students but also…

  19. On the mechanism underlying photosynthetic limitation upon trigger hair irritation in the carnivorous plant Venus flytrap (Dionaea muscipula Ellis).

    PubMed

    Pavlovic, Andrej; Slováková, L'udmila; Pandolfi, Camilla; Mancuso, Stefano

    2011-03-01

    Mechanical stimulation of trigger hairs on the adaxial surface of the trap of Dionaea muscipula leads to the generation of action potentials and to rapid leaf movement. After rapid closure secures the prey, the struggle against the trigger hairs results in generation of further action potentials which inhibit photosynthesis. A detailed analysis of chlorophyll a fluorescence kinetics and gas exchange measurements in response to generation of action potentials in irritated D. muscipula traps was used to determine the 'site effect' of the electrical signal-induced inhibition of photosynthesis. Irritation of trigger hairs and subsequent generation of action potentials resulted in a decrease in the effective photochemical quantum yield of photosystem II (Φ(PSII)) and the rate of net photosynthesis (A(N)). During the first seconds of irritation, increased excitation pressure in photosystem II (PSII) was the major contributor to the decreased Φ(PSII). Within ∼1 min, non-photochemical quenching (NPQ) released the excitation pressure at PSII. Measurements of the fast chlorophyll a fluorescence transient (O-J-I-P) revealed a direct impact of action potentials on the charge separation-recombination reactions in PSII, although the effect seems to be small rather than substantial. All the data presented here indicate that the main primary target of the electrical signal-induced inhibition of photosynthesis is the dark reaction, whereas the inhibition of electron transport is only a consequence of reduced carboxylation efficiency. In addition, the study also provides valuable data confirming the hypothesis that chlorophyll a fluorescence is under electrochemical control.

  20. [Control of chlorophyll a synthesis by phytochrome and cryptochrome in the red alga Corallina elongata Ellis et Soland].

    PubMed

    López-Figueroa, F; Niell, F X

    1988-09-01

    Chlorophyll a synthesis in the red alga Corallina elongata is controlled by phytochrome and by a specific blue light photoreceptor. Although the estimated photoequilibrium of phytochrome is similar in blue and red light, the amount of chlorophyll accumulated is greater in blue light, which implies the action of cryptochrome, according to the criteria for the specific blue light photoreceptor involvement. The amount of chlorophyll synthesized is greater when the level of photoequilibrium approaches 65% (in blue and red light) than with higher levels (72.7% in white light and 70.8% in green light). The action of phytochrome is demonstrated by the induction of chlorophyll synthesis after red pulses and the reversion after far red pulses. The reversion is not complete but the percentage of reversibility is high (85-90%). The amount of chlorophyll accumulated is greater in darkness after the application of red light pulses than in white light after the same light pulses. The induction of chlorophyll synthesis is greater after red pulses than after continuous red light. The existence of a fast destruction of chlorophyll in continuous light is observed. This destruction is greater in the high photoequilibrium of phytochrome (70-72%). The turnover times and the induction mechanism of chlorophyll synthesis must be very fast. This indicates the existence of a possible rapid adaptation to the change in light quality and intensity in the marine system.

  1. Society News: RAS Awards 2011; Prof. Richard Ellis; Prof. Eberhard Grün; Prof. Gilles Chabrier; Prof. Roger Searle;

    NASA Astrophysics Data System (ADS)

    2011-02-01

    Each year the RAS recognizes outstanding achievement in astronomy and geophysics by the award of medals and prizes. Candidates are nominated by Fellows and the awards made by a committee of Fellows, ensuring that these scientists have earned the respect and admiration of their peers in the research community.

  2. The 2nd United Kingdom Extracellular Vesicle Forum Meeting Abstracts: 15 December 2015, Hadyn Ellis Building, Cardiff University.

    PubMed

    Clayton, Aled; Lawson, Charlotte; Gardiner, Chris; Harrison, Paul; Carter, David

    2016-01-01

    The UK Extracellular Vesicles (UKEV) Forum meetings were born of the realization that there were a number of UK laboratories studying extracellular vesicle biology and using similar techniques but without a regular national meeting dedicated to EVs at which to share their findings. This was compounded by the fact that many of these labs were working in different fields and thus networking and sharing of ideas and best practice was sometimes difficult. The first workshop was organized in 2013 by Dr Charlotte Lawson, under the auspices of the Society for Endocrinology, led to the founding of the UKEV Forum and the organization of a British Heart Foundation sponsored 1-day conference held in London in December 2014. Although growing in size every year, the central aims of these workshops have remained the same: to provide a forum for discussion and exchange of ideas, to allow young scientists to present their data in the form of short talks and poster presentations and to discuss their work with more established scientists in the field. Here we include the presented abstracts for the 2015 1-day conference hosted by Cardiff University. This meeting was attended by approximately 130 delegates throughout the United Kingdom, but also attended by delegates from Belgium, Netherlands, France, Ireland and other nations. The day composed of plenary presentations from Prof Matthias Belting, Lund University, Sweden and Dr Guillaume van Niel, Institut Curie, Paris together with 10 short presentations from submitted abstracts. The topics covered were broad, with sessions on Mechanisms of EV production, EVs in Infection, EVs in Cancer and in Blood and Characterizing EVs in Biological fluids. This hopefully gives a reflection of the range of EV-related studies being conducted currently in the UK. There were also 33 poster presentations equally broad in subject matter. The organizers are grateful to the Life Science Research Network Wales - a Welsh government-funding scheme that part-sponsored the conference. We are also grateful to commercial sponsors, and 3 paid-presentations are included in the abstracts. The UK EV Forum is expected to become an established annual event held at different Universities across the UK and continue to attract increasing delegate numbers and abstract submissions. We look forward to the next planned conference, which will be hosted by David Carter and his colleagues at Oxford Brookes University on 13th December 2016.

  3. 75 FR 17125 - Foreign-Trade Zone 113-Ellis County, Texas, Application for Reorganization under Alternative Site...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-05

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE... May 14, 2010. Submissions (original and one electronic copy) shall be addressed to the Board's Executive Secretary at: Foreign-Trade Zones Board, U.S. Department of Commerce, Room 2111, 1401...

  4. The Maurice Ellis lecture for 1986. The responsibility of emergency medicine towards the prevention of road accidents.

    PubMed Central

    Rutherford, W H

    1986-01-01

    It is argued that doctors who work in accident and emergency departments should play their part in road accident prevention. It is suggested that this might be done in the field of research, by direct action, through education of the public and by influencing legislation. Examples are given of both small and simple, and major national research projects based in accident and emergency departments. The type of direct action envisaged is modelled on the work of Dr Hayle Hadeson in preventing accidents to children. Examples of the education of the public are drawn from publicity work in the seat-belt campaign, and experiences of lobbying members of parliament in relation to seat-belt legislation are described. The relative under-funding of trauma research compared with cancer of heart disease research is seen as a measure of society's lack of interest in accident prevention, and colleagues unchallenged to do more to alter this situation. PMID:3768120

  5. Abundance of cysteine endopeptidase dionain in digestive fluid of Venus flytrap (Dionaea muscipula Ellis) is regulated by different stimuli from prey through jasmonates.

    PubMed

    Libiaková, Michaela; Floková, Kristýna; Novák, Ondřej; Slováková, L'udmila; Pavlovič, Andrej

    2014-01-01

    The trap of the carnivorous plant Venus flytrap (Dionaea muscipula) catches prey by very rapid closure of its modified leaves. After the rapid closure secures the prey, repeated mechanical stimulation of trigger hairs by struggling prey and the generation of action potentials (APs) result in secretion of digestive fluid. Once the prey's movement stops, the secretion is maintained by chemical stimuli released from digested prey. We investigated the effect of mechanical and chemical stimulation (NH4Cl, KH2PO4, further N(Cl) and P(K) stimulation) on enzyme activities in digestive fluid. Activities of β-D-glucosidases and N-acetyl-β-D-glucosaminidases were not detected. Acid phosphatase activity was higher in N(Cl) stimulated traps while proteolytic activity was higher in both chemically induced traps in comparison to mechanical stimulation. This is in accordance with higher abundance of recently described enzyme cysteine endopeptidase dionain in digestive fluid of chemically induced traps. Mechanical stimulation induced high levels of cis-12-oxophytodienoic acid (cis-OPDA) but jasmonic acid (JA) and its isoleucine conjugate (JA-Ile) accumulated to higher level after chemical stimulation. The concentration of indole-3-acetic acid (IAA), salicylic acid (SA) and abscisic acid (ABA) did not change significantly. The external application of JA bypassed the mechanical and chemical stimulation and induced a high abundance of dionain and proteolytic activity in digestive fluid. These results document the role of jasmonates in regulation of proteolytic activity in response to different stimuli from captured prey. The double trigger mechanism in protein digestion is proposed.

  6. Abundance of Cysteine Endopeptidase Dionain in Digestive Fluid of Venus Flytrap (Dionaea muscipula Ellis) Is Regulated by Different Stimuli from Prey through Jasmonates

    PubMed Central

    Libiaková, Michaela; Floková, Kristýna; Novák, Ondřej; Slováková, L'udmila; Pavlovič, Andrej

    2014-01-01

    The trap of the carnivorous plant Venus flytrap (Dionaea muscipula) catches prey by very rapid closure of its modified leaves. After the rapid closure secures the prey, repeated mechanical stimulation of trigger hairs by struggling prey and the generation of action potentials (APs) result in secretion of digestive fluid. Once the prey's movement stops, the secretion is maintained by chemical stimuli released from digested prey. We investigated the effect of mechanical and chemical stimulation (NH4Cl, KH2PO4, further N(Cl) and P(K) stimulation) on enzyme activities in digestive fluid. Activities of β-D-glucosidases and N-acetyl-β-D-glucosaminidases were not detected. Acid phosphatase activity was higher in N(Cl) stimulated traps while proteolytic activity was higher in both chemically induced traps in comparison to mechanical stimulation. This is in accordance with higher abundance of recently described enzyme cysteine endopeptidase dionain in digestive fluid of chemically induced traps. Mechanical stimulation induced high levels of cis-12-oxophytodienoic acid (cis-OPDA) but jasmonic acid (JA) and its isoleucine conjugate (JA-Ile) accumulated to higher level after chemical stimulation. The concentration of indole-3-acetic acid (IAA), salicylic acid (SA) and abscisic acid (ABA) did not change significantly. The external application of JA bypassed the mechanical and chemical stimulation and induced a high abundance of dionain and proteolytic activity in digestive fluid. These results document the role of jasmonates in regulation of proteolytic activity in response to different stimuli from captured prey. The double trigger mechanism in protein digestion is proposed. PMID:25153528

  7. Modeling of ground-water flow in subsurface Austin Chalk and Taylor marl in Ellis County, Texas, near the superconducting super collider site

    SciTech Connect

    Mace, R.E. . Bureau of Economic Geology)

    1993-02-01

    Numerical models are useful tools for developing an understanding of ground-water flow in sparsely characterized low-permeability aquifers. Finite-difference, cross-sectional models of Cretaceous chalk and marl formations near the Superconducting Super Collider (SSC) were constructed using MODFLOW to evaluate ground-water circulation paths and travel times. Weathered and fractured zones with enhanced permeability were included to assess the effect these features had on flow paths and times. Pump tests, slug tests, packer tests, core tests, and estimates were used to define hydraulic properties for model input. The model was calibrated with water-level data from monitor wells and from wire-line piezometers near a test shaft excavated by the SSC project. A ratio of vertical-to-horizontal permeability of 0.0085 was estimated through model calibration. A chalk-to-marl permeability ratio of 18 was needed to reproduce artesian head in a well completed in chalk beneath marl. Hydraulic head distributions and ground-water flow paths reflected local, intermediate, and regional flow systems with recharge beneath upland surface-water divides and discharge in valleys. Most of the flow (99%) occurred in the weathered zone, with average residence times of 5 to 10 years. Residence time in unweathered chalk bedrock was substantially longer, at an average of 1.7 Ma. As expected, the model demonstrated that deep and rapid ground-water circulation might occur in fracture zones. Particle paths calculated using MODPATH showed that ground-water travel times from recharge areas to the SSC subsurface facilities might be 20 to 60 years where flow is through fracture zones.

  8. National Dam Safety Program. Ellis Lake Dam (MO 31067), Mississippi - Kaskaskia - St. Louis River Basin, Perry County, Missouri. Phase I Inspection Report.

    DTIC Science & Technology

    1981-03-01

    If a publication has a title in a foreign language , translate the title into English and follow the English translation with the title in the...original language . Make every effort to simplify the title before publication. Block 5. Type of Report and Period Covered. Indicate here whether report is...Block Key Words. Select terms or short phrases that identify the principal subjects covered in the report, and are sufficiently specific and

  9. The Study of Two Psychotherapy Approaches (Rogers Self Theory and Ellis Rational Theory) in Improvement of Bowen Self-differentiation and Intimacy

    PubMed Central

    Yousefi, Naser; Kiani, Mohammad Ali

    2014-01-01

    Objective: To compare the effectiveness of rational, behavioral and emotive therapy (REBT) and person-centered therapy (PCT) on self-differentiation and intimacy among divorce clients. Methods: In quasi-experimental study, 42 divorce clients (both males and females) who presented to the Counsling Center of Sanandaj, Iran were sampled. They were categorized into three groups of PCT, REBT, and control group (each group contained 14 subjects). The recovery indices (dependent variables) employed were the subject of self-differentiation and intimacy, which were measured twice before and after intervention of Differentiation of Self Inventory-2 (DSI-2) and intimacy. The therapy involved 8 one-hour sessions. It was held twice a week and therapeutic effects were traced after 8 months. Results: The results showed that REBT and PCT were effective on self-differentiation scale and intimacy. Also they were influential in recovery self-differentiation scale and intimacy follow up stage. Conclusion: REBT and PCT were effective on self-differentiation and its subscales (Emotional reactivity, “I” position, Emotional cut off and Fusion with other) and general intimacy. Declaration of interest: None. PMID:24995028

  10. The Influence of Exposure, Parents, and Linguistic Distance on Young European Learners' Foreign Language Comprehension

    ERIC Educational Resources Information Center

    Lindgren, Eva; Munoz, Carmen

    2013-01-01

    The project Early Language Learning in Europe (ELLiE) has studied the longitudinal effects of an early foreign language (FL) start in seven European contexts. This article presents a sub-study of ELLiE that investigates the impact of out-of-school factors on learners' listening and reading skills in year four of formal FL instruction. More…

  11. EFFECTS OF ENVIRONMENTAL PARAMETERS ON THE GROWTH CHARACTERISTICS OF SYMBIODINIUM SPP. ISOLATED FROM CORALS

    EPA Science Inventory

    Symbiodinium spp. were isolated from Porites porites (JR02F2 and RD03), Montipora capitata (JR12A7), Madracis mirabolis (RD02), Montastrea faveolata (RD04), Pocillopora damicornis (JR13E1), and an unknown coral (RD01). Growth rates and the distribution between motile gymnodinoid ...

  12. 76 FR 34136 - Qualification of Drivers; Exemption Applications; Vision

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-10

    ... in a CMV. James A. Ellis Mr. Ellis, 54, has had cataract in his left eye since birth. The best.... Stromwall, 51, has aphakia and amblyopia in his left eye due to cataract surgery at age 5. The...

  13. 76 FR 4724 - Catawba Sox, LLC Formerly Known as Catawba Sox, Inc. Including Workers Whose Unemployment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-26

    ... Whose Unemployment Insurance UI) Wages Are Paid Through Ellis Hosiery Mill, LLC, Newton, NC; Amended... unemployment insurance (UI) tax account under the name Ellis Hosiery Mill, LLC, formerly known as Catawba Sox... workers whose unemployment insurance (UI) wages are paid through Ellis Hosiery Mill, LLC, Newton,...

  14. 76 FR 52291 - Proposed Amendment of Class E Airspace; Jacksonville, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-22

    ... Procedures have been developed at Albert J Ellis Airport. This action would enhance the safety and airspace... instrument approach procedures developed at Albert J Ellis Airport, Jacksonville, NC, and for continued... at Albert J Ellis Airport, Jacksonville, NC. Lists of Subjects in 14 CFR Part 71...

  15. 77 FR 12992 - Amendment of Class E Airspace; Jacksonville, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-05

    ... amends Class E airspace at Albert J. Ellis Airport, Jacksonville, NC, by updating the geographic... Navigation Services to update the geographic coordinates of Albert J. Ellis Airport, Jacksonville, NC. This... the surface, at Albert J. Ellis Airport, Jacksonville, NC. The geographic coordinates of the...

  16. Growth in Emotional Intelligence. Psychotherapy with a Learning Disabled Girl

    ERIC Educational Resources Information Center

    Chantrell, Sue

    2009-01-01

    This paper describes the once-weekly psychoanalytic psychotherapy of a girl, called Ellie, aged eight at the start of her treatment. Ellie had a learning disability and displayed difficult behaviour at school and at home. In her therapy, Ellie grew in emotional intelligence, more in touch with and able to express her feelings. Her behaviour…

  17. Widespread Reduction in Coral Growth Rates on the Mesoamerican Reef Following the 1998 El Nino and Hurricane Mitch

    NASA Astrophysics Data System (ADS)

    Carilli, J. E.; Norris, R. D.; Hughen, K. A.

    2006-12-01

    Corals on the Mesoamerican Reef have been declining in health over the past few decades, and it is important to determine the cause, if conservation measures are to be effective. Cores from large Montastrea spp., Diploria strigosa, and Siderastrea siderea corals were collected in two locations on the Belizean barrier reef: 34 from Frank's Caye, Sapodilla Cayes, in the southern section and 7 from Dog Flea Caye, Turneffe Atoll, in the northern section. Most of the precipitation in this area occurs in southern Belize and Guatemala, therefore the corals from the Sapodilla Cayes may be more heavily impacted by land-based runoff than those at Turneffe Atoll. In 9 of 10 Montastrea and 2 Diploria cores from the Sapodilla Cayes, as well as 2 of 4 Montastrea cores from Turneffe Atoll analyzed so far, extension rates were significantly depressed coincident with unusually dense calcification during ~ 1998 or 1999. In 6 of the Montastrea cores from the Sapodilla Cayes and 1 from Turneffe Atoll, partial mortality was also observed coincident with this anomalous band. The oxygen isotopic and Sr/Ca ratios of the coral skeleton will be used to constrain the timing of this event, based upon cycles in these proxies corresponding to seasonal sea surface temperature fluctuations. These measures will also be used to determine whether high sea surface temperatures are concurrent with the abnormal growth band, which is expected if the stress band formed due to temperature- induced bleaching associated with the 1998 El Nino event. Ba/Ca ratios will be used as a proxy for terrigenous runoff to test the hypothesis that large, sediment-laden runoff plumes that occurred during Hurricane Mitch were also contemporaneous with the coral growth disturbance. We hypothesize that high sea surface temperatures and extraordinarily large runoff plumes were responsible for stressing the Mesoamerican corals, causing a reduction in extension rates, the formation of dense "stress" bands, and widespread

  18. 40 CFR 81.252 - Northwest Kansas Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., Cheyenne County, Decatur County, Ellis County, Gove County, Graham County, Logan County, Ness County..., Sheridan County, Sherman County, Smith County, Thomas County, Trego County, Wallace County....

  19. 40 CFR 81.252 - Northwest Kansas Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., Cheyenne County, Decatur County, Ellis County, Gove County, Graham County, Logan County, Ness County..., Sheridan County, Sherman County, Smith County, Thomas County, Trego County, Wallace County....

  20. 40 CFR 81.252 - Northwest Kansas Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ..., Cheyenne County, Decatur County, Ellis County, Gove County, Graham County, Logan County, Ness County..., Sheridan County, Sherman County, Smith County, Thomas County, Trego County, Wallace County....

  1. 40 CFR 81.252 - Northwest Kansas Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., Cheyenne County, Decatur County, Ellis County, Gove County, Graham County, Logan County, Ness County..., Sheridan County, Sherman County, Smith County, Thomas County, Trego County, Wallace County....

  2. Zinc Selenide Photoelectrodes. Efficient Radiative Recombination in a Stable Photoelectrochemical Cell.

    DTIC Science & Technology

    1984-05-25

    Patricia M. Smiley, Richard N. Biagioni , and Arthur B. Ellis Prepared for Publication in Journal of the Electrochemical Society Department of Chemistry...ORG. REPORT NUMBER 7. AUT’O,O@() 8. CONTRACT OR GRANT NUMBER(oj Patricia M. Smiley, Richard N. Biagioni , and Arthur B. Ellis NOO0l4-78-’C-O633 P...M. Olken, R. N. Biagioni , and A. B. Ellis, Inorg. Chem., 22, 000 (1983). 14. M. K. Carpenter, H. H. Streckert, and A. B. Ellis, J. Solid State Chem

  3. 40 CFR 81.252 - Northwest Kansas Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., Cheyenne County, Decatur County, Ellis County, Gove County, Graham County, Logan County, Ness County..., Sheridan County, Sherman County, Smith County, Thomas County, Trego County, Wallace County....

  4. 78 FR 26679 - Kansas Disaster #KS-00073

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-07

    ..., Dickinson, Ellis, Franklin, Harper, Harvey, Hodgeman, Kingman, Marion, Mcpherson, Ness, Osage, Osborne, Pawnee, Phillips, Pratt, Rice, Rooks, Rush, Russell, Smith, Stafford. The Interest Rates are: Percent...

  5. A Cultural Resources Survey of the Belle River Borrow Area, St. Martin Parish, Louisiana

    DTIC Science & Technology

    1990-03-01

    spatuala), large mouth bass (Micropterus salmoides), crappie or sac-a- lait (Pomoxis annularis), and catfish (Ictalurus sp.). Finally, bivalves such as the...Archaeological Phase in the Yazoo Basin of the Lower MississiDDi Valley. Society for American Archaeology Memoirs 18. Haag, W. G. 1971 Louisiana in North

  6. Life on the edge: corals in mangroves and climate change

    USGS Publications Warehouse

    Rogers, Caroline S.; Herlan, James J.

    2012-01-01

    Coral diseases have played a major role in the degradation of coral reefs in the Caribbean, including those in the US Virgin Islands (USVI). In 2005, bleaching affected reefs throughout the Caribbean, and was especially severe on USVI reefs. Some corals began to regain their color as water temperatures cooled, but an outbreak of disease (primarily white plague) led to losses of over 60% of the total live coral cover. Montastraea annularis, the most abundant coral, was disproportionately affected, and decreased in relative abundance. The threatened species Acropora palmata bleached for the first time on record in the USVI but suffered less bleaching and less mortality from disease than M. annularis. Acropora palmata and M. annularis are the two most significant species in the USVI because of their structural role in the architecture of the reefs, the large size of their colonies, and their complex morphology. The future of the USVI reefs depends largely on their fate. Acropora palmata is more likely to recover than M. annularis for many reasons, including its faster growth rate, and its lower vulnerability to bleaching and disease.

  7. YELLOW-BLOTCH DISEASE OUTBREAK ON REEFS OF THE SAN BLAS ISLANDS, PANAMA

    EPA Science Inventory

    During the post-8th International Coral Reef Symposium field trip to the eastern Caribbean region of Panama, 3-5 July 1996, we observed an extensive outbreak of a new and significant disease of the scleractinian corals Montastraea faveolata and M. annularis. The first reported si...

  8. Ten years of change to coral communities off Mona and Desecheo Islands, Puerto Rico, from disease and bleaching.

    PubMed

    Bruckner, Andrew W; Hill, Ronald L

    2009-11-16

    Remote reefs off southwest Puerto Rico have experienced recent losses in live coral cover of 30 to 80%, primarily due to the decline of Montastraea annularis and M. faveolata from disease and bleaching. These species were formerly the largest, oldest, and most abundant corals on these reefs, constituting over 65% of the living coral cover and 40 to 80% of the total number of colonies. From 1998 to 2001, outbreaks of yellow band disease (YBD) and white plague (WP) affected 30 to 60% of the M. annularis (complex) colonies. Disease prevalence declined beginning in 2002, and then increased immediately following the 2005 mass bleaching event. Colonies of M. annularis (complex) have been reduced in abundance by 24 to 32%, and remaining colonies are missing more than half their tissue. Both M. annularis and M. faveolata have failed to recruit, resheeting has been minimal, and exposed skeletal surfaces are being colonized by macroalgae, bioeroding sponges, and hydrozoans. Other scleractinian corals were smaller in size (mean = 28 cm diameter) and exhibited lower levels of partial mortality; these taxa were affected to a lesser extent by coral diseases and bleaching-associated tissue loss over the last decade. The numbers of small colonies (1 to 9 cm) of these species identified since 2005 also exceeded numbers of larger colonies that died. These reefs appear to be exhibiting shifts in species assemblages, with replacement of M. annularis (complex) by shorter-lived brooding species and other massive and plating corals (Agaricia, Porites, Meandrina, Eusmilia, Diploria, and Siderastrea spp.). To avoid a catastrophic and permanent loss of the dominant, slow-growing reef-building corals, the causes and effects of diseases need to be better understood, and possible control mechanisms must be developed. In particular, steps must be taken to mitigate environmental and anthropogenic stressors that increase the spread and severity of disease.

  9. Online Argument between Israeli Jews and Palestinians

    ERIC Educational Resources Information Center

    Ellis, Donald G.; Maoz, Ifat

    2007-01-01

    Previous research with face-to-face groups found that majority-minority theory was a better predictor of argument patterns between Israelis and Palestinians than cultural codes theory (D. G. Ellis & I. Maoz, 2002; I. Maoz & D. G. Ellis, 2001). But, because of the difficulties of organizing face-to-face contacts between Israelis and Palestinians…

  10. Cantonese versus Canadian Evaluation of Directive and Non-Directive Therapy.

    ERIC Educational Resources Information Center

    Waxer, Peter H.

    1989-01-01

    Examined differences between Canadian and Cantonese university students who read transcripts of Carl Rogers and Albert Ellis counseling sessions and rated these counselors on directiveness, forcefulness, repetitiveness, sensitivity, politeness, and willingness to see either Ellis or Rogers. Found Canadians more willing to see Rogers than Chinese…

  11. Subject Characteristics and Preferences for Different Approaches to Psychotherapy: A Multivariate Study

    ERIC Educational Resources Information Center

    Helweg, Gregory C.; Gaines, Lawrence S.

    1977-01-01

    Selected personality variables, sex, age, interpersonal values, and educational level, were examined as antecedents to preferences for a nondirective (Carl Rogers) or directive (Albert Ellis) therapist. Individuals who preferred the Ellis presentation proved to more dogmatic and externalized than individuals preferring the Rogers presentation.…

  12. The Anthropocene Biosphere: Supporting 'Open Interdisciplinarity' through Blogging.

    PubMed

    Trachtenberg, Zev M; Burns, Thomas J; de Beurs, Kirsten; Ellis, Stephen E; Gates, Kiza K; Hoagland, Bruce W; Kelly, Jeffrey F; Neeson, Thomas M; Randall, Asa R; Schlupp, Ingo; Soppelsa, Peter S; Soreghan, Gerilyn S; Zeigler, James J

    2017-01-01

    This paper describes a process of 'open' interdisciplinary scholarship. Researchers from across the University of Oklahoma blogged about a recent paper by ecologist Erle Ellis, and met in person to discuss posts. They then hosted Ellis for a seminar on questions that emerged, and for a public panel discussion.

  13. Symposium and Workshop Support in Molecular Biology and Biotechnology (5th) Held in University Park, Pennsylvania on February 5, 1986 and July 30-August 1, 1986.

    DTIC Science & Technology

    1987-04-29

    Derived Hepatitis B Vaccine --a Prototype for Future Vaccines" by Ronald W. Ellis of Merck; "The Application of Nuclear Magnetic Resonance Imaging and...Recombinant-Derived Hepatitis B Vaccine - A Prototype for Future Vaccines RONALD W. ELLIS 1:30-2:15 pm Merck The Application of Nuclear Magnetic Resonance

  14. Using Army National Guard Combat Battalions for Peace Operations: A Viable Alternative for the Future.

    DTIC Science & Technology

    2007-11-02

    59Michael J. Hardesty and Jason D. Ellis, Training for Peace Operations: The Army Adapts to the Post-Cold War World, (Washington DC: US Institute of Peace...Component Capability and Credibility. Alexandria VA: Institute for Defense Analysis, 1996. Hardesty , Michael J. and Jason D. Ellis, Training for Peace

  15. News Flash--Hume Still Dead.

    ERIC Educational Resources Information Center

    Eubank, Lynn; Gregg, Kevin R.

    2002-01-01

    In response to Ellis (2002), which resurrects the notion that language acquisition consists of frequency-based abstraction of regularities from input, this article suggests Ellis ignores fundamental and well-known problems, including the poverty of the stimulus, cases of instantaneous acquisition, and evidence for innate knowledge. (Author/VWL)

  16. The Rational-Emotive Approach: A Critique

    ERIC Educational Resources Information Center

    Morris, G. Barry

    1976-01-01

    The critique of Rational-Emotive Therapy aims criticism at Ellis' concept of irrationality, analysis of human behavior and therapeutic techniques. Ellis suggests that his critic's claims lack the support of experimental evidence. He further suggests that an "existential" bias pervades which differs from his own brand of…

  17. Finding a Balance: A Narrative Inquiry into Motherhood and the Doctoral Process

    ERIC Educational Resources Information Center

    Eisenbach, Brooke

    2013-01-01

    Carolyn Ellis states, "autoethnography shows struggle, passion, embodied life, and the collaborative creation of sense-making... [it] wants the reader to care, to feel, to empathize, and to do something, to act" (Ellis & Bochner, 2006, p. 433). This autoethnography describes one new mother's struggles to complete her doctoral program of study…

  18. Words, Hemispheres, and Processing Mechanisms: A Response to Marsolek and Deason (2007)

    ERIC Educational Resources Information Center

    Ellis, Andrew W.; Ansorge, Lydia; Lavidor, Michal

    2007-01-01

    Ellis, Ansorge and Lavidor (2007) [Ellis, A.W., Ansorge, L., & Lavidor, M. (2007). Words, hemispheres, and dissociable subsystems: The effects of exposure duration, case alternation, priming and continuity of form on word recognition in the left and right visual fields. "Brain and Language," 103, 292-303.] presented three experiments investigating…

  19. Measuring Implicit and Explicit Linguistic Knowledge: What Can Heritage Language Learners Contribute?

    ERIC Educational Resources Information Center

    Bowles, Melissa A.

    2011-01-01

    Although claims about explicit and implicit language knowledge are central to many debates in SLA, little research has been dedicated to measuring the two knowledge types (R. Ellis, 2004, 2005). The purpose of this study was to validate the use of the battery of tests reported in Ellis (2005) to measure implicit and explicit language knowledge.…

  20. Structural, Material, and Geotechnical Solutions to Levee and Floodwall Construction and Retrofitting - Physical Modeling

    DTIC Science & Technology

    2012-12-01

    Physical Modeling G eo te ch n ic al a n d S tr u ct u re s La b or at or y Wipawi Vanadit-Ellis, Eric W. Smith , Landris T. Lee, and Jared S. Case...Solutions to Levee and Floodwall Construction and Retrofitting – Physical Modeling Wipawi Vanadit-Ellis, Eric W. Smith , and Landris T. Lee...Manager for Water Resources Infrastructure. The Project Leader was Wipawi Vanadit-Ellis, assisted by Eric W. Smith , and Landris T. Lee, all of the

  1. Bleaching in reef corals: Physiological and stable isotopic responses

    PubMed Central

    Porter, James W.; Fitt, William K.; Spero, Howard J.; Rogers, Caroline S.; White, Michael W.

    1989-01-01

    During the late summer to fall of 1987, Caribbean reef corals experienced an intense and widespread discoloration event described as bleaching. Contrary to initial predictions, most bleached corals did not die. However, energy input from zooxanthellae decreased, as estimated from: (i) δ13C values, a measure of the discrimination against 13C in 12C/13C assimilation, of skeletal aragonite; (ii) in situ photosynthesis-irradiance measurements; (iii) and tissue biomass parameters of Montastraea annularis and Agaricia lamarcki. The δ18O signal, a measure of the discrimination against 18O in 16O/18O assimilation, from M. annularis skeletons demonstrated that this event coincided with abnormally elevated water temperatures. Images PMID:16594090

  2. The Role of Shipyard Pollutants in Structuring Coral Reef Microbial Communities: Monitoring Environmental Change and the Potential Causes of Coral Disease

    DTIC Science & Technology

    2006-06-01

    and nutrient cycling of the entire coral reef ecosystem. The consistent spatial advance of a moving "front" of BBD mat created a geometric frame of...ET AL.: CONTROLS ON CORALLITE MORPHOLOGY IN M. ANNULARIS KEY WORDS: corals, species complexes, plasticity, morphometrics I ABSTRACT 2 Scleractinian...genetics, aggressive behavior, ecology, 89 growth rate, corallite morphometrics , and stable isotopes (Tomascik, 1990; Knowlton et 4 90 al., 1992; van

  3. Species Profiles: Life Histories and Environmental Requirements of Coastal Fishes and Invertebrates (South Florida). Reef-Building Corals.

    DTIC Science & Technology

    1987-08-01

    Stoddart, D.R. 1969. Ecology and Sammarco, P.W. 1985. The Great morphology of recent coral reefs . Barrier Reef vs. the Caribbean: Biol. Rev. Camb. Philos...Sambo Reef , Florida, involving cervicornis and M. annularis tolerated bleaching and loss of symbiotic oxygen tensions as low as 1.0 ppm for zooxanthellae...Montastraea (1.0-2.0 cm/yr), but both species of Montastraea are also important in reef development due to their massive form and great longevity

  4. Environmental Effects of Dikes and Revetments on Large Riverine Systems.

    DTIC Science & Technology

    1986-06-01

    riprap or sand habitats (Mississippi River Work Unit 1980). Kallemeyn and Novotny (1977) reported that johnny darters prefer spur-dike habitat and...Thesis, Univer- sity of South Dakota, Vermillion , S. Dak. Witten, A. L., and Bachmann, R. W. 1976. "A Study of the Effects of Stream Channelization and...Spotted bass Pornoxis annularis White crappie P. migromaculatU3 Black crappie Percidae Perches Etheostoma nigrum Johnny darter Stizostedion canadense

  5. Miocene platform-margin reefs, Gulf of Suez, Egypt

    SciTech Connect

    Noel, J.P.; Rosen, B.; Coniglio, M.

    1988-01-01

    Jebel Abu Shaar is a completely dolomitized carbonate platform atop a crystalline basement horst on the western side of the Gulf of Suez. Margins of the platform, where not removed by synsedimentary faulting, are formed by well-developed coral reefs. The massive reef carbonates consistently illustrate two stages of growth: a basal paucispecific unit of branching coral bafflestone, mostly Stylophora and a thicker upper unit of diverse coral framestone, dominated by faviids. In the upper unit, the reef crest is massive columnar Porites and less common Caulastrea framestone. The back-reef is a framestone of diverse faviids, mainly Montastrea Favites, and Tarbellastrea, and interbedded reef-flat rhodolite rudstones. The back-reef and reef-flat facies grade onshelf into Stylophora bafflestone biostromers and faviid bioherms. The reef front is a shallow to intermediate depth zone of numerous and diverse faviids, dominated by Montastrea and Acanthastrea framestones, bioclastic sands, and hardgrounds. Deeper zones are mostly small Acanthastrea mounds or rhodolite/bivalve rudstones with scattered faviids and Acanthastrea. Synsedimentary lithification, internal sedimentationm, and bioerosion prevail throughout. A deep-water, slope-parallel biostrome of ahermatypic corals, dominated by Dendrophyllia and containing numerous Balanophyllia and Madracis, is present 10 km north of Abu Shaar. Corals are well cemented by numerous rinds of marine cement which is overlain by geopetal internal sediment containing planktonic foraminifers and pteropods.

  6. 2. GENERAL VIEW LOOKING EAST SHOWING SOUTH SIDE OF BRIDGE. ...

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

    2. GENERAL VIEW LOOKING EAST SHOWING SOUTH SIDE OF BRIDGE. SHALLOW ARCH ON EXTREME RIGHT SPANS ELLIS ST. - Sudbury River Aqueduct, Echo Bridge, Spanning Charles River at Upper Newton Falls, Newton, Middlesex County, MA

  7. A Web Service Implementation for Large-Scale Automation, Visualization and Real-Time Program Awareness via Lexical Link Analysis

    DTIC Science & Technology

    2011-04-30

    nrfpfqflk obpb^ o `e moldo^j do^ar^qb p`elli lc _rpfkbpp C mr_if` mlif`v k^s^i mlpqdo^ar^qb p`elli bu`bomq colj qeb mêçÅÉÉÇáåÖë çÑ íÜÉ bfdeqe...kkr^i ^`nrfpfqflk obpb^ o `e pvjmlpfrj tbakbpa^v pbppflkp slirjb f Disclaimer: The views represented in this report are those of the authors and do not...nrfpfqflk obpb^ o `e moldo^j do^ar^qb p`elli lc _rpfkbpp C mr_if` mlif`v k^s^i mlpqdo^ar^qb p`elli The research

  8. A Model for Determining Optimal Governance Structure in DoD Acquisition Projects in a Performance-Based Environment

    DTIC Science & Technology

    2010-04-30

    Åèìáëáíáçå=oÉëÉ~êÅÜ=mêçÖê~ã= do^ar^qb= p `elli=lc=_rpfkbpp=C=mr_if`=mlif`v= k^s^i=mlpqdo^ar^qb= p `elli= Approved for public release, distribution...Standard Form 298 (Rev. 8-98) Prescribed by ANSI Std Z39-18 = ^Åèìáëáíáçå=oÉëÉ~êÅÜ=mêçÖê~ã= do^ar^qb= p `elli=lc=_rpfkbpp=C=mr_if`=mlif`v= k^s^i=mlpqdo^ar...qb= p `elli= The research presented at the symposium was supported by the Acquisition Chair of the Graduate

  9. Personal Change and Intervention Style

    ERIC Educational Resources Information Center

    Andrews, John D. W.

    1977-01-01

    Presents a theory of personal change and analyzes growth-producing interventions using examples from the film, "Three Approaches to Psychotherapy". Compares the styles of Carl Rogers, Frttz Perls, and Albert Ellis to illustrate the theory. (Editor/RK)

  10. 77 FR 40945 - Qualification of Drivers; Exemption Applications; Vision

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-11

    ...) Tony K. Ellis (IN) Jerry L. Gibson (FL) Rici W. Giesseman (OH) George R. House (MO) Michael A. Jabro (MI) Michael G. Martin (CT) Michael M. Martinez (NM) Robert L. McClain (MI) Daniel E. Miller...

  11. A Guide to the Changing Court Rulings on Union Security in the Public Sector: A Union Perspective.

    ERIC Educational Resources Information Center

    Darko, Richard J.; Knapp, Janet C.

    1985-01-01

    The Supreme Court in "Ellis vs. Brotherhood of Railway, Airline and Steamship Clerks" has provided a systematic process for determining what constitutes union expenses properly charged to objecting nonmembers. (MLF)

  12. Interactions between a group of Golden Eagles and a herd of North American elk

    USGS Publications Warehouse

    O'Connell, Matt P.; Kochert, Michael N.

    2013-01-01

    Raptors are generally considered solitary predators (Schoener 1969), but occasionally they interact socially (Brown and Amadon 1968). Certain raptor species (e.g., Swallow-tailed Kites [Elanoides forficatus] and Swainson's Hawks [Buteo swainsoni]) concentrate in aggregations in response to localized, abundant food sources (Ellis et al. 1993). Many raptor species engage in group hunting (Ellis et al. 1993), and social foraging is a routine strategy for some species (e.g., Harris's Hawks [Parabuteo unicinctus]; Bednarz 1988, Ellis et al. 1993]. Raptors generally engage in group hunting to pursue elusive or large prey (Ellis et al. 1993). Occasionally individuals of conspecific raptors engage in play as a group sometimes involving chases of prey species (Palmer 1988). In this letter, we report interactions between a large group of Golden Eagles and a herd of adult and juvenile Rocky Mountain elk (Cervus canadensis nelsoni) in late autumn.

  13. Congenital heart disease

    MedlinePlus

    ... defect - heartbeat Patent ductus arteriosis (PDA) - series References Fraser CD, Carberry KE. Congenital heart disease. In: Townsend ... ASD) Coarctation of the aorta Ellis-van Creveld syndrome Fetal alcohol syndrome Hypoplastic left heart syndrome Marfan ...

  14. Flight restraint

    USGS Publications Warehouse

    Ellis, D.H.; Dein, F.J.; Ellis, D.H.; Gee, G.F.; Mirande, C.M.

    1996-01-01

    Many techniques are available for pre ve n ting escape of captive cranes. These include tenotomy, tenectomy, wing clipping, confinement under nets, amputation, brailing, and vane trimming (Ellis and Dein 1991). The advantages and limitations of each technique are presented.

  15. 76 FR 79196 - Gluten in Drug Products; Request for Information and Comments

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-21

    .... Green, ``Innate and Adaptive Immunity: The Yin and Yang of Celiac Disease,'' Immunological Reviews, vol...,'' Clinical and Experimental Immunology, vol. 50, pp. 651-660, 1982. 15. Sturgess, R.P., H.J. Ellis, and...

  16. Aeromagnetic maps of the Mazatzal Wilderness and contiguous roadless areas, Gila, Maricopa, and Yavapai counties, Arizona

    USGS Publications Warehouse

    Moss, C.K.; Abrams, G.A.

    1985-01-01

    Studies of the geology, geochemistry (Marsh and others, 1983a, b, Erickson, 1984), mines and prospects (Ellis, 1982), and mineral resource potential (Wrucke and others, 1983) of the Mazatzal Wilderness and contiguous roadless areas have been published elsewhere.

  17. 78 FR 74129 - Change in Bank Control Notices; Acquisitions of Shares of a Bank or Bank Holding Company

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-10

    ... Francisco, California 94105-1579: 1. John Jung Hun Chang, Wellwish Investment LLC, Ellis Eunrok Chang, all of Garden Grove, California, and Ellen Eunmi Chang, Bellevue, Washington; to retain voting shares...

  18. 75 FR 9477 - Qualification of Drivers; Exemption Applications; Vision

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-02

    ... renewable two-year period. They are: Alberto Blanco, Michael B. Canedy, Larry A. Cossin, Charles W. Cox, Gary W. Ellis, Dennis J. Evers, Hector O. Flores, W. Roger Goold, Lee Guse, Steven W. Halsey,...

  19. A Theoretical and Empirical Integration of the Rational-Emotive and Classical Conditioning Theories

    ERIC Educational Resources Information Center

    Russell, Phillip L.; Brandsma, Jeffrey M.

    1974-01-01

    Galvanic skin conductance response, respiration rate and respiration depth values of an experimental and control group were used to test the hypotheses of a Albert Ellis' ABC Theory of psychopathology. (EK)

  20. The Counselor in a Nuclear World: A Rationale for Awareness and Action.

    ERIC Educational Resources Information Center

    Gearhart, Jo Anne

    1984-01-01

    Explores a rationale for counselors' responses to the threat of nuclear annihilation and suggests some action possibilities. Includes a response by Milton Schwebel emphasizing professional roles, and by Albert Ellis emphasizing the dangers of religous zealotism. (Author/JAC)

  1. 78 FR 25462 - Oklahoma; Major Disaster and Related Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-01

    ... areas and Hazard Mitigation throughout the State. You are further authorized to provide snow assistance... Assistance. Dewey and Ellis Counties for snow assistance under the Public Assistance program for...

  2. Analysis and Modeling of Target Echo and Reverberation: FY15 Annual Report for ONR

    DTIC Science & Technology

    2015-09-30

    during the past year: • Michael A. Ainslie, Dale D. Ellis, and Chris H. Harrison . Low frequency bottom reverberation in a Pekeris waveguide with...Chris H. Harrison . Towards benchmarks of low frequency reverberation level in a Pekeris waveguide: Insight from analytical solutions. J. Acoust...USA, 23–27 May 2011. [AEH15] Michael A. Ainslie, Dale D. Ellis, and Chris H. Harrison . Low frequency bottom reverberation in a Pekeris waveguide

  3. Theory and Algorithms for Global/Local Design Optimization

    DTIC Science & Technology

    2005-09-29

    Sioson, C. Vasquez -Robinet, M. Shukla, D. Kumar, M. Ellis, L. S. Heath, N. Ramakrishnan, B. Chevone, L. T. Watson, L. vanZyl, U. Egertsdotter, R. R...process for eukaryotic cell cycle models with a modeling support environment", in Proc. 2003 Winter Simulation Conf., S. Chick, P. J. Sanchez , D. Ferrin...Watkinson, C. Vasquez -Robinet, M. Ellis, M. Shukla, D. Kumar, N. Ramakrishnan, L. S. Heath, R. Grene, B. I. Chevone, K. Kafadar, and L. T. Watson

  4. Mathematical Modeling to Reduce the Cost of Complex System Testing: Characterizing Test Coverage to Assess and Improve Information Return

    DTIC Science & Technology

    2011-09-21

    Rough sailing: The case of the lame ship. In Proceedings of the Seventh International Conference on Engineering of Computer Based Systems ( EBCS 2000...Åèìáëáíáçå=oÉëÉ~êÅÜ=mêçÖê~ã= do^ar^qb=p`elli=lc=_rpfkbpp=C=mr_if`=mlif`v= = - 46 - k^s^i=mlpqdo^ar^qb=p`elli= public void addModule(Module m

  5. Coast Guard Proceedings. Volume 68, Number 1, Spring 2011

    DTIC Science & Technology

    2011-01-01

    the Marine Event Permit Program by LCDR Ellis H. Moose 28 Abandoned and Derelict Vessel Removal Understanding the process can ensure success. by LCDR...root cause analysis, · intervention selection, · implementation, · evaluation. Improving the Marine Event Permit Program by LCDR ELLIS H. MOOSE ...the author: LCDR Moose is a graduate of the U.S. Merchant Marine Academy and currently assigned to the U.S. Coast Guard Office of Marine

  6. Homosexuals and U.S. Military Policy: Current Issues

    DTIC Science & Technology

    2005-05-27

    Thomasson v. Perry,51 Chief Judge J. Harvie Wilkinson III stressed Congress’ “plenary control” of the military and the “deference” owed both the...Judge Ellis in Thorne v. U.S. Department of Defense.53 After reviewing the record in eight other administrative separation proceedings where the...presumption that a declared homosexual has a propensity to engage in forbidden conduct was successfully rebutted, Judge Ellis in Thorne held that conduct

  7. Homosexuals and U.S. Military Policy: Current Issues

    DTIC Science & Technology

    2005-02-10

    that he was homosexual. Writing for the nine-member majority in Thomasson v. Perry,51 Chief Judge J. Harvie Wilkinson III stressed Congress...Circuit relied on Thomasson to affirm a ruling by federal District Judge Ellis in Thorne v. U.S. Department of Defense.53 After reviewing the record in...successfully rebutted, Judge Ellis in Thorne held that conduct rather than speech was the target of the “don’t ask, don’t tell” policy. In Richenberg

  8. Another Approach to Counter-Terrorism: Terrorists with Guilty Consciences

    DTIC Science & Technology

    2012-12-01

    2004]). 81 M. Crenshaw, Terrorism: What’s Coming the Mutating Threat, ed. J. O. Ellis III ( Oklahoma : Memorial Institute for the Prevention of...Terrorism: What’s Coming the Mutating Threat. The Organization of Terrorism., edited by Ellis III, J. O. Oklahoma : Memorial Institute for the...University Press, 2007. Shu, Lisa L., Francesca Gino, and Max H. Bazerman. “Dishonest Deed, Clear Conscience: When Cheating Leads to Moral

  9. Archeological Testing Fort Hood: 1994-1995. Volume 2

    DTIC Science & Technology

    1996-10-01

    Dering .3 (" G. Lain Ellis 0 t- Glenn Goodfriend oKarl Kleinbach Patrick L. O’Neill J. Michael QuiJgg Marybeth S . F. Tomka W. Nicholas Trierweiler L=C~ q...James T. Abbott Phil Dering G. Lain Ellis Glenn Goodfriend Karl Kleinbach Gemma Mehalchick Patrick O’Neill J. Michael Quigg Marybeth S . F. Towka and...26 2.4.8 Stampede Group .......................................... 27 2.4.9 S ,ell M ountain Group

  10. Gap Analysis: Rethinking the Conceptual Foundations

    DTIC Science & Technology

    2008-01-30

    k ^s^i= mlpqdo^ar^qb= p`elli= jlkqbobvI=`^ifclokf^= = NPS-GSBPP-08-008 Approved for public release, distribution is...Ira Lewis, Associate Professor Graduate School of Business & Public Policy Reviewed by: ________________________________ Robert N. Beck...ix = = k ^s^i= mlpqdo^ar^qb= p`elli= jlkqbobvI=`^ifclokf^= = NPS-GSBPP-08-008 Approved for public release

  11. Modeling and Analysis of Target Echo and Clutter in Range-Dependent Bistatic Environments: FY13 Annual Report for ONR

    DTIC Science & Technology

    2013-09-30

    13] Michael A. Ainslie, Dale D. Ellis, Jan Ehrlich , Pieter Schippers, Karl-Thomas Hjelmervik, and Mathieu E. G. D. Colin. Echo, reverberation and echo...gebco 08.nc, version 20100927. [HOSH10] Paul C. Hines, John C. Osler, Jeffrey G. E. Scrutton, and Landon J. S. Halloran. Time-of-flight measurements...Acoustics held in Edinburgh, Scotland, UK, 2–6 July 2012. [published] • Michael A. Ainslie, Dale D. Ellis, Jan Ehrlich , Pieter Schippers, Karl-Thomas

  12. Modeling and Analysis of Target Echo and Clutter in Range-Dependent Bistatic Environments: FY12 Annual Report for ONR

    DTIC Science & Technology

    2012-09-30

    reverberation level in a Pekeris waveguide : Insight from analytical solutions. J. Acoust. Soc. Am., 129(5, Pt. 2 of 2):2631, 2011. Abstract 4pUW10...Ellis, and Chris H. Harrison. Low frequency bottom reverberation in a Pekeris waveguide with Lambert’s rule. J. Comp. Acoust., 2013. Submitted...Ellis. Two modeling approaches for reverberation in a shallow water waveguide where the scattering arises from a sub-bottom interface. J. Comp

  13. I Will Never Forget: An Analysis of the POW/MIA (Prisoners of War/Missing in Action) Episode in the War in Southeast Asia.

    DTIC Science & Technology

    1982-05-01

    Purcell, Benjamin H., Col Ett: ueiler, Harry L., SSgL Rander, Donald J., SFC . Flora, Carroll E. Jr., SFC Ray, Johnnie L., Capt Frank, ::artin 3.. SS...Jr., Lt Col Elander, William J., Jr., Maj Brenneman, Richard C., Capt Ellis, Jeffrey T., Capt Bridger, Barry B., Capt Ellis, Leon F., Capt Brodak...j * Guy, Theodore W.., Col Logn, c.., t Hall, George R., It Col Lollar. . Hall, Keith I., 1.:aj Luna , jose I., Capz *: Hanson, Gregg 0., 2t

  14. Decadal-scale rates of reef erosion following El Niño-related mass coral mortality.

    PubMed

    Roff, George; Zhao, Jian-Xin; Mumby, Peter J

    2015-12-01

    As the frequency and intensity of coral mortality events increase under climate change, understanding how declines in coral cover may affect the bioerosion of reef frameworks is of increasing importance. Here, we explore decadal-scale rates of bioerosion of the framework building coral Orbicella annularis by grazing parrotfish following the 1997/1998 El Niño-related mass mortality event at Long Cay, Belize. Using high-precision U-Th dating and CT scan analysis, we quantified in situ rates of external bioerosion over a 13-year period (1998-2011). Based upon the error-weighted average U-Th age of dead O. annularis skeletons, we estimate the average external bioerosion between 1998 and 2011 as 0.92 ± 0.55 cm depth. Empirical observations of herbivore foraging, and a nonlinear numerical response of parrotfish to an increase in food availability, were used to create a model of external bioerosion at Long Cay. Model estimates of external bioerosion were in close agreement with U-Th estimates (0.85 ± 0.09 cm). The model was then used to quantify how rates of external bioerosion changed across a gradient of coral mortality (i.e., from few corals experiencing mortality following coral bleaching to complete mortality). Our results indicate that external bioerosion is remarkably robust to declines in coral cover, with no significant relationship predicted between the rate of external bioerosion and the proportion of O. annularis that died in the 1998 bleaching event. The outcome was robust because the reduction in grazing intensity that follows coral mortality was compensated for by a positive numerical response of parrotfish to an increase in food availability. Our model estimates further indicate that for an O. annularis-dominated reef to maintain a positive state of reef accretion, a necessity for sustained ecosystem function, live cover of O. annularis must not drop below a ~5-10% threshold of cover.

  15. [Effect of herbivorous and corallivorous fishes on the survival of transplanted corals in the Colombian Caribbean].

    PubMed

    Chasqui-Velasco, Luis; Alvarado Ch, Elvira; Acero, Arturo; Zapata, Fernando A

    2007-01-01

    To examine the effects of herbivorous and corallivorous fishes on the survival of transplanted colonies of Montastraea annularis, Diploria labyrinthiformis and Porites astreoides, both transplanted and native colonies were full-cage enclosed and compared to open (uncaged) colonies, while caging effects were assessed with a partial-cage (roof treatment). To evaluate if transplant stress increased the corals availability to fish predation, comparisons of fish foraging intensity among transplanted versus native colonies were made. To determine the density of herbivorous and corallivorous fishes on the transplants area visual censuses were made. The transient herbivorous fishes (Scaridae and Acanthuridae) were the most abundant fishes, and the corallivorous fishes (mainly Chaetodontidae) were the scarcest. A negative effect of territorial herbivorous fishes on M annularis transplants survival was observed, mainly early on the study. Fish foraging intensity was similar on transplanted and native colonies, but differed among coral species, being lowest on D. labyrinthiformis. Fast macroalgal growth inside full-cages due to reduced fish grazing was observed. This caused partial bleaching and partial mortality in some colonies, mainly of P. astreoides. No significant difference in healthy tissue percentages among full-cage and uncaged colonies on M. annularis and D. labyrinthiformis was found, while in P. astreoides there were evilent differences. The results indicate a damselfish negative effect on transplants survival early on the study, which can change depending on the fish and coral species involved. Results also indicate a fish grazing positive effect, caused by the reduction of coral-algae competition pressure, mainly on P. astreoides. Parrotfishes seem to affect corals survival both negatively through direct biting, and positively by controlling algal growth. Overall, coral transplant success was almost unaffected by fish foraging activity although several

  16. Character release following extinction in a Caribbean reef coral species complex.

    PubMed

    Pandolfi, John M; Lovelock, Catherine E; Budd, Ann F

    2002-03-01

    The Pleistocene extinction of the widespread organ-pipe Montastraea coral had measurable morphological and ecological effects on surviving lineages of the Montastraea "annularis" species complex. Extinction of the organ-pipe Montastraea occurred after more than 500,000 years of dominance in the shallow-water reef habitat of Barbados. Extinction resulted in a morphological shift of the columnar Montastraea lineage from thick to thin columns in modern reef environments. Pleistocene colonies of the columnar morphotype sympatric with organ-pipe Montastraea showed greater column widths than those in allopatry. We subjected our data to a number of criteria for interpreting the morphological shift as character release following lifting of competitive pressure after extinction. The morphological differences do not appear to be due either to chance or to physical properties of the marine environment. Differential local extinction and recolonization of four members of the species complex did not occur on Barbados, so that the species coexisted and appear to have coevolved between more than 600,000 and 82,000 years ago. The morphological shift is related to coral growth form and growth rate, and thus reflects the acquisition of a primary resource in corals--light. Character release occurred at the same oceanic Caribbean island (Barbados) where environments have fluctuated with similar variance throughout the period of coexistence. Not only has competition among living members of the Montastraea "annularis" species complex been convincingly demonstrated, but trends in relative abundance among fossil members of the species complex strongly suggest that a competitive hierarchy was operating during their Pleistocene coexistence on Barbados. We also observed an ecological analogue to character release on another Caribbean island. Curaçao. The distribution and abundance of living columnar M. annularis s.s. and massive M. faveolata from the leeward reef crest in Curaçao is greater

  17. Rational Emotive Behavioural Therapy: The Evolution of a Revolution

    PubMed Central

    Ellis, Debbie Joffe; Rovira, Montse

    2015-01-01

    Recognized as one of the most influential thinkers and psychologists, Albert Ellis PhD (1913-2007) revolutionized Psychology when he created the first cognitive psychotherapy, Rational Emotive Behavioral Therapy. After he passed away, Dr. Debbie Joffe Ellis continues spreading his legacy around the world. Psychologist, lecturer, writer, trainer, she dedicates her life to disseminate REBT and extend it through different statements, from the social to the educational, from the academic to the clinical. In this interview, she goes through her own history and her husband’s one, bringing us closer to understanding Albert Ellis as the leading figure in his field, and the oneness they experienced through their professional and personal relationship. PMID:27247638

  18. Development of an Item Unique Identification Strategy for the Legacy Components of the US Marine Corps M1A1 Abrams Tank

    DTIC Science & Technology

    2008-12-03

    GEARBOX ASSEMBLY,CW 1015010766691 PAOFF $13,059.00 319 GEARBOX , ACCESSORY DRIVE, TURBINE ENGINE 2835011978325 PAFDD $47,763.00 320 GEARBOX ,ACCESSORY DRIVE...Road, Room 332,Monterey,CA,93943 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING/ MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR...ã= do^ar^qb=p`elli=lc=_rpfkbpp=C=mr_if`=mlif`v= = - xii - k^s^i=mlpqdo^ar^qb=p`elli= HB Heavy Barrel HEAT High Explosive, Anti-tank HIBCC Health

  19. B2B Models for DoD Acquisition

    DTIC Science & Technology

    2007-07-30

    ar^qb=p`elli=lc=_rpfkbpp=C=mr_if`=mlif`v - i - k^s^i=mlpqdo^ar^qb=p`elli= Abstract A central vision of B2B e - commerce is that of an electronic...are purchased, pricing mechanisms, the characteristics of the markets, and ownership of marketplace. Keywords: B2B E - Commerce , Internet...interest is in the analysis, design and implementation of computer-based information systems. Specifically, he is interested in B2B and B2C e - commerce

  20. Better Acquisition Management through Alternative Dispute Resolution (ADR) and Other Best Practices for Preventing and Resolving Bid Protests

    DTIC Science & Technology

    2012-01-24

    ESLS ) made cost = = ^Åèìáëáíáçå=oÉëÉ~êÅÜ=mêçÖê~ã= do^ar^qb=p`elli=lc=_rpfkbpp=C=mr_if`=mlif`v - 66 - k^s^i=mlpqdo^ar^qb=p`elli= and availability...Mobility Command (AMC). Regarding cost, the ESLS found that the KC-135 fleet would incur “significant cost increases” between 2001 and 2040, but “no...the ESLS publication, the Air Force planned to wait until 2013 to begin KC-135 replacement. (Gupta, Belasco, Else, & O’Rourke, 2003, pp. 2– 3

  1. Urination and its discontents.

    PubMed

    Weinberg, J

    1994-01-01

    "Urination and Its Discontents" is an attempt to answer why various twentieth-century artists have made works that use or are about urination. Andy Warhol's act of "pissing" onto a canvas in his Oxidation Paintings is related to homosexual "sex clubs," but also to the iconoclasm of Mapplethorpe, Serrano, Duchamp, and Pollock. Freud's idea that civilization began with the renunciation of the "homosexual competition" of urinating on the fire is discussed and compared to Ellis's idealization of the erotics of bodily functions. Weinberg suggests that artists follow Ellis instead of Freud in undermining the boundaries society places on what is clean and dirty and what is sexually permissible.

  2. Transaction Costs from a Program Manager’s Perspective

    DTIC Science & Technology

    2009-09-28

    5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME...AVAILABILITY STATEMENT Approved for public release; distribution unlimited 13. SUPPLEMENTARY NOTES 14. ABSTRACT This project continues ongoing efforts...êÅÜ=mêçÖê~ã= do^ar^qb=p`elli=lc=_rpfkbpp=C=mr_if`=mlif`v - i - k^s^i=mlpqdo^ar^qb=p`elli= Abstract This project continues ongoing efforts by the

  3. Relation of irrational thinking and the Pessimistic Explanatory Style.

    PubMed

    Ziegler, D J; Hawley, J L

    2001-04-01

    This study investigated the possible relationship between Ellis's construct of irrational thinking and Seligman's construct of explanatory style, with a view toward possibly strengthening the personality theory underlying Rational Emotive Behavior Therapy in particular and cognitive-behavior therapies more generally. In this investigation 180 college students were administered the Survey of Personal Beliefs and the Attributional Style Questionnaire to measure irrational thinking and explanatory style, respectively. Students who scored higher on Pessimistic Explanatory Style also scored higher on Overall Irrational Thinking and on Low Frustration Tolerance than did those who were categorized as having an Optimistic Explanatory Style. This indicates support for Ellis's developing personality theory, especially his theoretical account of depression.

  4. Blood Meal Preference of Some Anopheline Mosquitoes in Command and Non-command Areas of Rajasthan, India

    PubMed Central

    Swami, Kailash Kumar; Srivastava, Meera

    2012-01-01

    Background: The present study was undertaken to compare the entomological situation by analyzing the blood meal of mosquitoes of canal irrigated and non-irrigated areas of Bikaner in order to explore scientific information on the vector biology and malaria burden profile and to plan proper strategies for malaria control and eradication. Methods: Adult mosquitoes were collected and the abdomen of the blood fed females were crushed on a filter paper for blood meal analysis and subjected to precipitin test. Results: The blood meal analysis showed that Anopheles subpictus had a preference towards cattle blood, An. culicifacies and An. stephensi preferred human blood, while, An. annularis was noted to feed only on bovine blood. Conclusion: Although An. annularis, has been recently reported from the area, was found to feed exclusively on bovine blood, earlier reports suggest that this species is a vector of malaria and therefore preventive measures should be taken well in advance before this species gets established in the area. PMID:23378966

  5. Tissue mortality by Caribbean ciliate infection and white band disease in three reef-building coral species

    PubMed Central

    Bastidas, Carolina; Croquer, Aldo

    2016-01-01

    Caribbean ciliate infection (CCI) and white band disease (WBD) are diseases that affect a multitude of coral hosts and are associated with rapid rates of tissue losses, thus contributing to declining coral cover in Caribbean reefs. In this study we compared tissue mortality rates associated to CCI in three species of corals with different growth forms: Orbicella faveolata (massive-boulder), O. annularis (massive-columnar) and Acropora cervicornis (branching). We also compared mortality rates in colonies of A. cervicornis bearing WBD and CCI. The study was conducted at two locations in Los Roques Archipelago National Park between April 2012 and March 2013. In A. cervicornis, the rate of tissue loss was similar between WBD (0.8 ± 1 mm/day, mean ± SD) and CCI (0.7 ± 0.9 mm/day). However, mortality rate by CCI in A. cervicornis was faster than in the massive species O. faveolata (0.5 ± 0.6 mm/day) and O. annularis (0.3 ± 0.3 mm/day). Tissue regeneration was at least fifteen times slower than the mortality rates for both diseases regardless of coral species. This is the first study providing coral tissue mortality and regeneration rates associated to CCI in colonies with massive morphologies, and it highlights the risks of further cover losses of the three most important reef-building species in the Caribbean. PMID:27547525

  6. Assessment of heavy metal contamination levels and toxicity in sediments and fishes from the Mediterranean Sea (southern coast of Sfax, Tunisia).

    PubMed

    Zohra, Ben Salem; Habib, Ayadi

    2016-07-01

    Contamination of heavy metals in sediment is regarded as a global crisis with a large share in industrializing cities like Sfax (Tunisia). Seven heavy metals such as Cadmium (Cd), Copper (Cu), Iron (Fe), Mercury (Hg), Nickel (Ni), Lead (Pb), and Zinc (Zn), and one metalloid such as Arsenic (As) in sediments and fish (D. annularis, L. aurata, and S. vulgaris) were investigated from the Southern coast of Sfax in Tunisia. The range of metals in sediments were 13.11-36; 4.42-7.92; 8.23-28.56; 50,564-11,956; 2.9-6.8; 9.13-30.51; 65.06-151.50, and 47-546 kg(-1) DW for As, Cd, Cu, Fe, Hg, Ni, Pb, and Zn. The level of studied metals in sediment samples exceeded the limits of the quality assessment guidelines (SQGs). The potential ecological risk index (PERI) proved that the investigated region could pose moderate risk for the aquatic biota. Metal bioaccumulation in the fish muscles varied significantly among species. Indeed, S. vulgaris and D. annularis accumulated higher amount of metal than L. aurata. The target hazard quotients (THQ) of individual heavy metals in fish, except for As and Hg, revealed safe levels for human consumption. Nevertheless, the total THQ indexes exceeded 1 suggesting the combined effects on muscles fish, which may constitute a risk to population's health.

  7. Reef Endemism, Host Specificity and Temporal Stability in Populations of Symbiotic Dinoflagellates from Two Ecologically Dominant Caribbean Corals

    PubMed Central

    Thornhill, Daniel J.; Xiang, Yu; Fitt, William K.; Santos, Scott R.

    2009-01-01

    Background The dinoflagellate genus Symbiodinium forms symbioses with numerous protistan and invertebrate metazoan hosts. However, few data on symbiont genetic structure are available, hindering predictions of how these populations and their host associations will fair in the face of global climate change. Methodology/Principal Findings Here, Symbiodinium population structure from two of the Caribbean's ecologically dominant scleractinian corals, Montastraea faveolata and M. annularis, was examined. Tagged colonies on Florida Keys and Bahamian (i.e., Exuma Cays) reefs were sampled from 2003–2005 and their Symbiodinium diversity assessed via internal transcribed spacer 2 (ITS2) rDNA and three Symbiodinium Clade B-specific microsatellite loci. Generally, the majority of host individuals at a site harbored an identical Symbiodinium ITS2 “type” B1 microsatellite genotype. Notably, symbiont genotypes were largely reef endemic, suggesting a near absence of dispersal between populations. Relative to the Bahamas, sympatric M. faveolata and M. annularis in the Florida Keys harbored unique Symbiodinium populations, implying regional host specificity in these relationships. Furthermore, within-colony Symbiodinium population structure remained stable through time and environmental perturbation, including a prolonged bleaching event in 2005. Conclusions/Significance Taken together, the population-level endemism, specificity and stability exhibited by Symbiodinium raises concerns about the long-term adaptive capacity and persistence of these symbioses in an uncertain future of climate change. PMID:19603078

  8. Tissue mortality by Caribbean ciliate infection and white band disease in three reef-building coral species.

    PubMed

    Verde, Alejandra; Bastidas, Carolina; Croquer, Aldo

    2016-01-01

    Caribbean ciliate infection (CCI) and white band disease (WBD) are diseases that affect a multitude of coral hosts and are associated with rapid rates of tissue losses, thus contributing to declining coral cover in Caribbean reefs. In this study we compared tissue mortality rates associated to CCI in three species of corals with different growth forms: Orbicella faveolata (massive-boulder), O. annularis (massive-columnar) and Acropora cervicornis (branching). We also compared mortality rates in colonies of A. cervicornis bearing WBD and CCI. The study was conducted at two locations in Los Roques Archipelago National Park between April 2012 and March 2013. In A. cervicornis, the rate of tissue loss was similar between WBD (0.8 ± 1 mm/day, mean ± SD) and CCI (0.7 ± 0.9 mm/day). However, mortality rate by CCI in A. cervicornis was faster than in the massive species O. faveolata (0.5 ± 0.6 mm/day) and O. annularis (0.3 ± 0.3 mm/day). Tissue regeneration was at least fifteen times slower than the mortality rates for both diseases regardless of coral species. This is the first study providing coral tissue mortality and regeneration rates associated to CCI in colonies with massive morphologies, and it highlights the risks of further cover losses of the three most important reef-building species in the Caribbean.

  9. Radical Reactions in the Decomposition of Energetic Materials

    DTIC Science & Technology

    2014-10-08

    PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. University of Chicago 5801 South Ellis Avenue Chicago , IL 60637 -5418 ABSTRACT Final Report...Decomposition of Energetic Materials" L. J. Butler, The University of Chicago W911NF1010314, Program Manager James Parker Final  Report  for

  10. The Genomic Evolution of Prostate Cancer

    DTIC Science & Technology

    2014-10-01

    Ph D CONTRACTING ORGANIZATION: University of Chicago REPORT DATE: October 2014 TYPE OF REPORT: Annual...NUMBER University of Chicago , The 5801 S Ellis Ave Chicago IL 60637-5418 9. SPONSORING / MONITORING...Human Tissue Resources Core at the University of Chicago to identify additional cases of coincident ductal and acinar carcinoma with sufficient

  11. Response to Pienemann's Critique of Zhang and Lantolf (2015)

    ERIC Educational Resources Information Center

    Lantolf, James P.; Zhang, Xian

    2015-01-01

    We respond here to Pienemann's critique of our study that appeared earlier this year in the Language Learning Special Issue entitled "Orders and Sequences in the Acquisition of L2 Morphosyntax, 40 Years On" and guest edited by Jan Hulstijn, Rod Ellis, and Søren Eskildsen. Pienemann objected to our claim that the Teachability Hypothesis…

  12. Traversable intra-Universe wormholes and timeholes in General Relativity: two new solutions

    NASA Astrophysics Data System (ADS)

    Smirnov, Alexey L.

    2016-11-01

    Using thin shell formalism we construct two solutions of intra-Universe wormholes. The first model is a cosmological analog of the Aichelburg-Schein timehole, while another one is an intra-Universe form of the Bronnikov-Ellis solution.

  13. Positive Evidence Versus Explicit Rule Presentation and Explicit Negative Feedback: A Computer-Assisted Study

    ERIC Educational Resources Information Center

    Sanz, Cristina; Morgan-Short, Kara

    2004-01-01

    The facilitative role of explicit information in second language acquisition has been supported by a significant body of research (Alanen, 1995; Carroll & Swain, 1993; de Graaff, 1997; DeKeyser, 1995; Ellis, 1993; Robinson, 1996, 1997), but counterevidence is also available (Rosa & ONeill, 1999; VanPatten & Oikkenon, 1996). This experimental study…

  14. Alleviating Communication Apprehension through Rational Emotive Therapy: A Comparative Evaluation.

    ERIC Educational Resources Information Center

    Watson, Arden K.; Dodd, Carley H.

    Albert Ellis's Rational Emotive Therapy (RET), which assumes that a person can change an emotional disturbance by discovering and disputing the irrational ideas giving rise to that emotion, has been used effectively in treating public speaking anxiety. To compare RET with other treatments for communication apprehension, 52 high communication…

  15. The Relationship between Supervisors' Power Bases and Supervisory Styles

    ERIC Educational Resources Information Center

    Tanaka, Hideyuki

    2009-01-01

    Despite its critical role in counselor training, empirical research on clinical supervision is generally limited (Bernard & Goodyear, 2003; Ellis & Ladany, 2007). This is also applied to an area of power dynamics in supervision. This study tested the relationship between the two aspects of power dynamics; namely, supervisors' power bases (i.e.,…

  16. Motivating the Gifted, Talented, Creative. A Meta-Analysis.

    ERIC Educational Resources Information Center

    Shaughnessy, Michael F.

    The main theories of motivation are reviewed in an effort to help teachers discern various tactics and techniques that they can use with gifted, talented, and creative students. Among the theories examined are Ivan Pavlov's respondent conditioning; Albert Ellis's rational-emotive approach; Abraham Maslow's triangular approach to growth and…

  17. Latin America Report

    DTIC Science & Technology

    2007-11-02

    Amaro Cuellar Flor. Ucayali: Atalaya, Dorian Campos Vargas ; Coronel Portillo, Policarpio Ramirez Falcon; Padre Abad, Luis Alvan Freeh. [Text] [Lima EL...Walcott beat Charles Augustin to the post of party chairman. Deputy Chairman is Henry Marquis. 99 Hilary Modeste and Ellis Edward were re-elected

  18. The Fifth Data Release of the Sloan Digital Sky Survey

    DTIC Science & Technology

    2007-10-01

    084 Krakow, Poland. 41 Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637. 42 Lawrence Berkeley National...18,41 Idit Zehavi,73 Stefano Zibetti,70 and Daniel B. Zucker6,10 Received 2006 October 12; accepted 2007 March 19 1 Fermi National Accelerator

  19. The Effect of Teachers' Written Corrective Feedback (WCF) Types on Intermediate EFL Learners' Writing Performance

    ERIC Educational Resources Information Center

    Aghajanloo, Khadijeh; Mobini, Fariba; Khosravi, Robab

    2016-01-01

    Written Corrective Feedback (WCF) is a controversial topic among theorists and researchers in L2 studies. Ellis, Sheen, Murakami, and Takashima (2008) identify two dominant dichotomies in this regard, that is focused vs. unfocused WCF and direct vs. indirect WCF. This study considered both dichotomies in a matrix format, resulted in the…

  20. The Experience of Daily Hassles, Cardiovascular Reactivity and Adolescent Risk Taking and Self-Esteem

    ERIC Educational Resources Information Center

    Vermeersch, Hans; T'Sjoen, Guy; Kaufman, Jean-Marc; Vincke, John; Bracke, Piet

    2010-01-01

    Based on Boyce and Ellis's model on "context" and "biological sensitivity to the context", this article analyzes the interaction between the experience of daily hassles and experimentally induced cardiovascular reactivity as an indicator of stress reactivity, in explaining risk taking and self-esteem. This study found, in a…

  1. Prevalence of Traumatic Dental Injuries in Patients Attending University of Alberta Emergency Clinic

    PubMed Central

    Alkhadra, Thamer; Preshing, William; El-Bialy, Tarek

    2016-01-01

    Objectives: This study evaluated the prevalence of dental trauma for patients attending the emergency dental clinic at the University of Alberta Hospital between 2006-2009. Patients’ examination and treatment charts were reviewed. Methods: Total number of patients’ charts was 1893.The prevalence of different types of trauma was 6.4 % of the total cases (117 patients). Trauma cases were identified according to Ellis classification and as modified by Holland et al., 1988. Results: Logistic statistical model showed that 21.7% were Ellis class I trauma, 16.7% were Ellis class II trauma, and 6.7% were Ellis class III. In addition, 11.7 % presented with avulsion, 7.5 % presented with dentoalveolar fracture and 7.5% presented with sublaxation. Also, 17.55 % presented with tooth displacement within the alveolar bone, 3.3 % presented with crown fracture with no pulp involvement, 4.16 % presented with crown fracture with pulp involvement and 3.3 % presented with root fracture. In conclusion, the general prevalence of dentoalveolar trauma in patients attending the emergency clinic at the University of Alberta is less than other reported percentages in Canada or other countries. PMID:27398104

  2. Race, Reification, and Responsibility.

    ERIC Educational Resources Information Center

    Cancro, Robert

    Noting that many of the attacks on individual scientists as well as some of the attacks on the field of behavior genetics are more than intemperate--they are non-rational--the author discusses his experience as a signatory to a document drawn up by Ellis B. Page during the winter of 1971-1972. The intent of this controversial document was to…

  3. Generalizing: The Core of Algebraic Thinking

    ERIC Educational Resources Information Center

    Kinach, Barbara M.

    2014-01-01

    Generalizing--along with conjecturing, representing, justifying, and refuting--are forms of mathematical reasoning important in all branches of mathematics (Lannin, Ellis, and Elliott 2011). Increasingly, however, generalizing is recognized as the essence of thinking in algebra (Mason, Graham, and Johnston-Wilder 2010; Kaput, Carraher, and Blanton…

  4. 75 FR 82275 - Changes in Flood Elevation Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-30

    ... under the criteria of section 3(f) of Executive Order 12866 of September 30, 1993, Regulatory Planning..., 10th Floor, 400 Stewart Avenue, Las Vegas, NV 89101. New York: Niagara Town of Cambria (07- October 18, 2007; The Honorable Wright H. January 24, 2008 360499 02-0919P). October 25, 2007; Ellis, Cambria...

  5. Developing Researcherly Dispositions in an Initial Teacher Education Context: Successes and Dilemmas

    ERIC Educational Resources Information Center

    Roche, Mary

    2014-01-01

    Douglas and Ellis (2011, p. 175) suggest that institutionally universities and schools are required to work with different conceptual tool-kits. Seeking to minimise the potential standoff between academic and practitioner knowledge, and, therefore, to enhance the learning of student teachers, means, they suggest, rethinking both the social…

  6. Teaching Second Language Acquisition Courses: Views from New Faculty

    ERIC Educational Resources Information Center

    Gorsuch, Greta J.; Beglar, David

    2004-01-01

    Second language acquisition (SLA) courses are a perennial feature of graduate level teacher preparation programs in Applied Linguistics and TESOL. While there has been recent interest in exploring the interfaces of second language acquisition research and classroom teaching (Ellis, 1997), the teaching of SLA courses at the university level is…

  7. Sensor Placement Design for Object Pose Determination with Three Light- Stripe Range Finders

    DTIC Science & Technology

    1994-05-10

    uncertainties in polyhedral object recognition. IEEE Transactions on Robotics and Automation, 7(3):361-371, June 1991. [6] R. E. Ellis. Planning...cell with multi-sensor capabilities. IEEE Transactions on Robotics and Automation, 5(6):765- 783, December 1989. [151 K. Ikeuchi and T. Kanade. Modeling

  8. 75 FR 8109 - National Register of Historic Places; Weekly Listing of Historic Properties

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-23

    ...., Jefferson, 09000973, LISTED, 12/02/09 NEW YORK Kings County Kol Israel Synagogue, 603 St. John's Place... County Attucks School, 346 S. 4th, Vinita, 09000974, LISTED, 12/03/09 Ellis County Ingle Brothers...., Cushing, 09000979, LISTED, 12/ 03/09 TEXAS Collin County Allen Water Station, N. of Exchange Pkwy...

  9. Gifted Programs.

    ERIC Educational Resources Information Center

    Roeper Review, 1979

    1979-01-01

    Descriptions of four gifted programs are offered in articles titled "Career Education for Gifted Students in Illinois" (J. Ellis and B. Ford); "Interage Program for Critical Thinking" (H. Masterson); "Talcott Mountain Science Center" (D. LaSalle); and "Project L.O.G.I.C.--Nurturing the Mathematically Gifted" (W. Foley and B. Spack). (SBH)

  10. Teachers' and Learners' Reactions to a Task-Based EFL Course in Thailand

    ERIC Educational Resources Information Center

    McDonough, Kim; Chaikitmongkol, Wanpen

    2007-01-01

    Although many studies have described the L2 learning opportunities created by individual tasks, considerably less research has investigated task-based syllabi and courses (Bruton, 2002; Candlin, 2001; Ellis, 2003; Skehan, 2003). This case study investigated teachers' and learners' reactions to a task-based EFL course at a Thai university. A team…

  11. Evolution of a Computer-Based Testing Laboratory

    ERIC Educational Resources Information Center

    Moskal, Patrick; Caldwell, Richard; Ellis, Taylor

    2009-01-01

    In 2003, faced with increasing growth in technology-based and large-enrollment courses, the College of Business Administration at the University of Central Florida opened a computer-based testing lab to facilitate administration of course examinations. Patrick Moskal, Richard Caldwell, and Taylor Ellis describe the development and evolution of the…

  12. Impact of Consciousness-Raising Activities on Young English Language Learners' Grammar Performance

    ERIC Educational Resources Information Center

    Fatemipour, Hamidreza; Hemmati, Shiva

    2015-01-01

    Grammar Consciousness-Raising (GCR) is an approach to teaching of grammar which learners instead of being taught the given rules, experience language data. The data challenge them to rethink, restructure their existing mental grammar and construct an explicit rule to describe the grammatical feature which the data illustrate (Ellis, 2002). And…

  13. A Voice from the Past: Catharine Beecher's Response to Simone de Beauvoir

    ERIC Educational Resources Information Center

    Murphy, Madonna M.

    2002-01-01

    Charlesetta Ellis, President of the Midwest Philosophy of Education Society (2002-2004) gave the Presidential Address at the 2002 MPES Annual Meeting, November 8, 2002 at Chicago State University regarding the important contributions made by Simone de Beauvoir to education and especially the education of women. This paper is a response to the…

  14. The Long Run

    ERIC Educational Resources Information Center

    Donnelly, Laura

    2007-01-01

    This article profiles six educators who have taught for as long as two generations. These educators are the following: (1) Hazel Wilson--teaching 47 years; (2) Agnes Zeiger--teaching 61 years; Rose Gilbert--teaching 51 years; (4) Ellie Johnson--teaching 52 years; (5) Roy Clare--teaching 48 years; and (6) Carrie Hansen--54 years in education. These…

  15. Effects of Host Resistance and Shading Density on the Disease Severity of Hydrangea Leaf Spot

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Leaf spot, caused by Cercospora hydrangeae Ellis & Everh., is a common disease of bigleaf hydrangea (Hydrangea macrophylla) in ornamental nurseries and gardens. Experiments were conducted to determine the effects of cultivars and shading density on the disease severity. Two year-old plants of six bi...

  16. The Relationship between Teachers' Beliefs of Grammar Instruction and Classroom Practices in the Saudi Context

    ERIC Educational Resources Information Center

    Alghanmi, Bayan; Shukri, Nadia

    2016-01-01

    Teacher cognition (Borg, 2015) of grammar instruction is a relatively new phenomenon that has yet to be explored in the Saudi context. While many studies have focused on the teaching of grammar in general (Ellis, 2006; Corzo, 2013; Braine, 2014), further research needs to be done - particularly when it comes to understanding teachers' beliefs of…

  17. Study of Family Memoir and Ideologies of Gender: Application to the Intersection of the Creative and the Scholarly in the Writing Classroom

    ERIC Educational Resources Information Center

    Williams, Elly

    2006-01-01

    Elly Williams is an adjunct instructor at Johns Hopkins where she received her M.A. in writing. She is a faculty member for the Sewanee Young Writers' Conference, and the author of the novel "This Never Happened." The article she presents here is divided into three parts: (1) Tales of a Grandmother's Commonplace Memoir; (2) Assignment:…

  18. 6. VIEW OF BRIDGE COMMEMORATIVE PLAQUE WHICH STATES '1908, J. ...

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

    6. VIEW OF BRIDGE COMMEMORATIVE PLAQUE WHICH STATES '1908, J. H. CROOKS, ED. ELLIS, A. S. LELAND, COMMISSIONERS. L. E. BRELSFORD, AUDITOR. L. WEST, SURVEYOR. - B. C. GERWICK, DESIGNER. F. E. WITHCOTT, ENG. ON CONST. C. A. WARNER, CONTRACTOR.' - First Street Reinforced Concrete Bridge, Spanning Moxahala Creek at First Street (CR 7), Roseville, Muskingum County, OH

  19. Effects of Pretask Modeling on Attention to Form and Question Development

    ERIC Educational Resources Information Center

    Kim, YouJin

    2013-01-01

    Over the last two decades, a growing body of research has shown positive impacts for task planning in task-based instruction (e.g., Ellis, 2005; Foster & Skehan, 1996). However, what learners plan during pretask planning, and whether any specific planning strategies are more beneficial in encouraging learners to attend to linguistic forms and…

  20. Educational Considerations for the Learning Disabled Adolescent: Selected Papers.

    ERIC Educational Resources Information Center

    Ensminger, E. Eugene, Ed.; Smiley, Lydia R., Ed.

    Presented are 11 papers from a seminar entitled Secondary Programs for the Adolescent with Learning Disabilities. Entries include the following titles and authors: "Parent-Adolescent Interaction" (D. Ellis); "The Development of the Adolescent Self-Concept" (M. Smith); "The Self-Concept of the Learning Disabled Adolescent" (B. Lockett); "Brief…

  1. First report of powdery mildew caused by Podosphaera leucotricha on Callery pear in North America

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Podosphaera leucotricha (Ellis & Everh.) E.S. Salmon (Ascomycetes, Erysiphales) is the etiological agent of a powdery mildew disease that occurs on rosaceous plants, primarily Malus and Pyrus. This fungus is nearly circumglobal. In May 2009, leaves of Bradford pear (Pyrus calleryana Decne.), some di...

  2. Undergraduate Physical Education Programs: Issues and Approaches.

    ERIC Educational Resources Information Center

    Lawson, Hal A., Ed.

    Papers presented at the National Professional Preparation Conference in Physical Education were revised and expanded for publication in this monograph. In part I, two papers, "Professional Preparation Conferences: One More Time" (W. G. Anderson) and "Current Context and Future Curriculum" (M. J. Ellis), set the stage for a presentation of…

  3. Action potential and contraction of Dionaea muscipula (Venus flytrap).

    PubMed

    DI PALMA, J R; MOHL, R; BEST, W

    1961-03-24

    Observation of the action potential and contraction of the leaf of Dionaea muscipula Ellis revealed several interesting phenomena. Two successive stimuli are generally necessary to cause contraction. The first and ineffective stimulus is associated with slow depolarization. The second stimulus has much more rapid depolarization and initiates contraction.

  4. 21st Century Learning and Information Literacy

    ERIC Educational Resources Information Center

    Breivik, Patricia Senn

    2005-01-01

    The faces of immigrant children who had come through Ellis Island with their parents in search of better futures stare out at me from a set of black and white photographs near my desk. The children, frozen in time, are lined up for blocks, waiting for the doors of a public library to open. Access to information was their pathway to a future of…

  5. No Time for Youth--Growth and Constraint in College Students. Student Life and Its Problems.

    ERIC Educational Resources Information Center

    Katz, Joseph; And Others

    Chapter Seven, by Marjorie M. Lazoff, "Residential Groups and Individual Development," describes living conditions, social environment, and reactions to them of several groups of undergraduate men at Stanford University. Chapter Eight, by Ving Ellis, "Students Who Seek Psychiatric Help," is based on interviews and questionnaire data from 493…

  6. What Should Be Explicit in Explicit Grammar Instruction?

    ERIC Educational Resources Information Center

    Nagai, Noriko; Ayano, Seiki; Okada, Keiko; Nakanishi, Takayuki

    2015-01-01

    This article proposes an approach to explicit grammar instruction that seeks to develop metalinguistic knowledge of the L2 and raise L2 learners' awareness of their L1, which is crucial for the success of second language acquisition (Ellis 1997, 2002). If explicit instruction is more effective than implicit instruction (Norris and Ortega 2000),…

  7. The Construct Validity of Grammaticality Judgment Tests as Measures of Implicit and Explicit Knowledge

    ERIC Educational Resources Information Center

    Gutierrez, Xavier

    2013-01-01

    Grammaticality judgment tests (GJTs) have been, and continue to be, frequently used in the field of SLA as a measure of learners' linguistic ability in the second language (L2). However, only a few studies have examined their construct validity as measures of implicit and explicit knowledge (Bowles, 2011; R. Ellis, 2005), and even fewer have…

  8. How Vietnamese Culture Influence on Learning and Teaching English

    ERIC Educational Resources Information Center

    Huong, Phan Thi Thu

    2008-01-01

    Vietnamese has to face a cross-culture issue with the teaching and learning of English as Vietnamese culture is "villagers' culture" which considers relationships in village as family relations and an emphasis "on hierarchical, social order in their dealings with one another" (Ellis, 1995: 9) with a traditional teaching method…

  9. 75 FR 56578 - Renewal of the Advisory Committee on Apprenticeship (ACA), and an Open Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-16

    ..., IIIAFT Administrator, Heat and Frost Insulators and Allied Workers Int'l Union, Lanham, Maryland. Mr..., Director of YouthBuild & Building Futures, The Providence Plan, Providence, Rhode Island. Ms. Phaedra Ellis... President, Workforce Development Division, National Urban League, New York, New York. Mr. Martin...

  10. Case Study of a Computer Based Examination System

    ERIC Educational Resources Information Center

    Fluck, Andrew; Pullen, Darren; Harper, Colleen

    2009-01-01

    Electronic supported assessment or e-Assessment is a field of growing importance, but it has yet to make a significant impact in the Australian higher education sector (Byrnes & Ellis, 2006). Current computer based assessment models focus on the assessment of knowledge rather than deeper understandings, using multiple choice type questions,…

  11. Why Is It Difficult to Grasp the Impacts of the Portuguese Quality Assurance System?

    ERIC Educational Resources Information Center

    Veiga, Amélia; Rosa, Maria João; Dias, Diana; Amaral, Alberto

    2013-01-01

    This article analyses the impacts of the Portuguese quality assurance system on academic cultures, using the Cultural Theory proposed by Douglas (1970, 1982) and developed by Thompson, Ellis and Wildavsky (1990) as an explanatory framework for Portuguese academics' preference formation in relation to quality assessment. The Portuguese higher…

  12. Schools Reaching Out: An Introduction.

    ERIC Educational Resources Information Center

    Heleen, Owen

    1990-01-01

    Introduces an issue devoted to the Schools Reaching Out projects at David A. Ellis School in Roxbury (MA) and Adolph S. Ochs School in New York City. Projects attempt to link the schools with parents and their communities to promote the students' academic and social success. (DM)

  13. Working-Class Women in the Academy: Laborers in the Knowledge Factory.

    ERIC Educational Resources Information Center

    Tokarczyk, Michelle M., Ed.; Fay, Elizabeth A., Ed.

    This volume contains a collection of essays on the issues and concerns that face women from working-class backgrounds who enter academic careers. Following an introduction and transcript of a dialogue between Kate Ellis and Lillain S. Robinson, the essays are as follows: "What's a Nice Working-Class Girl Like You Doing in a Place Like…

  14. Point of Entry

    ERIC Educational Resources Information Center

    Manzo, Kathleen Kennedy

    2007-01-01

    As part of a professional development program organized by the Save Ellis Island Foundation, the exhibits, databases, photo archives, and recorded interviews at the island's museum helps put the nation's current immigration debate into a broader historical context. Teachers at these sessions learn from scholars and park personnel about early…

  15. Planned and Unplanned Aspects of Occupational Choices by Youth. Final Report.

    ERIC Educational Resources Information Center

    Ellis, Robert A.; And Others

    This document includes reports on four subjects relevant to planned and unplanned aspects of occupational choices by youth. (1) "Toward a Morphology of Occupational Choice," by Robert A. Ellis and others, discusses intrinsic features and extrinsic rewards of work, extra-role considerations, and goal perception as major influences on occupational…

  16. 40 CFR 65.14 - Addresses.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Valley Air Quality Management District, 43301 Division Street, Suite 206, Lancaster, CA 93535. (iii) Bay Area Air Quality Management District, 939 Ellis Street, San Francisco, CA 94109. (iv) Butte County Air Quality Management District, 2525 Dominic Drive, Suite J, Chico, CA 95928. (v) Calaveras County...

  17. 40 CFR 65.14 - Addresses.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Valley Air Quality Management District, 43301 Division Street, Suite 206, Lancaster, CA 93535. (iii) Bay Area Air Quality Management District, 939 Ellis Street, San Francisco, CA 94109. (iv) Butte County Air Quality Management District, 2525 Dominic Drive, Suite J, Chico, CA 95928. (v) Calaveras County...

  18. Moving Business and Marketing Education into the 21st Century. Proceedings of the Annual Meeting of the Atlantic Coast Business and Marketing Education Conference (17th, Raleigh, North Carolina, February 18-19, 2000).

    ERIC Educational Resources Information Center

    Parke, David, Ed.

    This document contains 21 presentations from a conference on business and marketing education. The following papers are included: "Microsoft Excel 2000" (Jeff Fuller); "Clueless in the Classroom? Hints To Help!" (Mary W. Evans); "A Strategy To Improve Narrative-Number Linkage in Business Writing" (Ellis A. Hayes);…

  19. Critical Nucleation Field at the Structured Surface of a Superconductor

    DTIC Science & Technology

    1988-08-01

    Marcel Dekker 1969 8. Ginzburg, V.L., Landau, L.D.: Zh. Eksperim. i Tear. Fiz. 20, 1064 (1950) 9. Gor’kov, L.P.: Zh. Eksperim. i Tear. Fiz. 36, 1918...Department of Chemistry Washington, D.C. 20234 Janes Franck Institute - 5640 Ellis Avenue Dr. J. E. Demuth Chicago, Illinois 60637 IBM Corporation

  20. Coupled s-Wave and d-Wave States in the Heavy Fermion Superconductor U sub 1-x Th sub x Be sub 13

    DTIC Science & Technology

    1988-06-01

    2, Edited by R. D. Parks ( Marcell Dekker, New York, 1969), p. 817. 2 and~2 26. The values for O and0 in these expressions are generally not equal...Chemistry Washington, D.C. 20234 Janes Franck Institute 5640 Ellis Avenue Dr. J. E. Demuth Chicago, Illinois 60637 IBM Corporation Thomas J. Watson

  1. The Impact of an Institutional Black Male Leadership Initiative on Engagement and Persistence

    ERIC Educational Resources Information Center

    Barker, Marco J.; Avery, Jared C.

    2012-01-01

    While there has been growing research that explores the impact of race- and cultural-specific student organizations or spaces on Black students and particularly Black males (Dancy, 2011; Harper & Quaye, 2007; McClure, 2006; Museus, 2008; L. Patton, 2006), there have been fewer studies (Ellis, 2009) examining emerging, institutionalized Black…

  2. From Amorphous to Defined: Balancing the Risks of Spiral Development

    DTIC Science & Technology

    2007-04-30

    qb=p`elli= adequacy of available information about the project environment and the potential effects of management actions ( Pich , Loch, & De Meyer...Standford, CA. Perry, W. (1995, May 10). IPPD definition and key tenets (Secretary of Defense Memorandum). Washington, DC: DoD. Pich , M. T., Loch, C.H

  3. A Gift for the Giver: Helping Miss Liberty.

    ERIC Educational Resources Information Center

    Wright, Corinne

    1986-01-01

    This article describes the activities of a secondary social studies teacher as she involved her class--and eventually the entire school--in activities to support the restoration of the Statue of Liberty and Ellis Island. The students raised over $1,000 by producing an ethnic foods cookbook, holding a raffle, and selling buttons. (JDH)

  4. Keeping Black Poetry Alive

    ERIC Educational Resources Information Center

    Mehta, Diane

    2006-01-01

    Thomas Sayers Ellis, assistant professor of creative writing at New York's Sarah Lawrence College, is one of many scholars fighting for the soul of Black poetry, a struggle that takes place largely off-campus. Unless one is accepted into a top-level graduate poetry program, such as Boston University's program or the Iowa Writing Workshop, a poet's…

  5. The Argument-Structure Complexity Effect in Children with Specific Language Impairment: Evidence from the Use of Grammatical Morphemes in French

    ERIC Educational Resources Information Center

    Pizzioli, Fabrizio; Schelstraete, Marie-Anne

    2008-01-01

    Purpose: The hypothesis that the linguistic deficit presented by children with specific language impairment (SLI) is caused by limited cognitive resources (e.g., S. Ellis Weismer & L. Hesketh, 1996) was tested against the hypothesis of a limitation in linguistic knowledge (e.g., M. L. Rice, K. Wexler, & P. Cleave, 1995). Method: The study examined…

  6. A Guide to the Changing Court Rulings on Union Security in the Public Sector: An Introduction.

    ERIC Educational Resources Information Center

    Jascourt, Hugh D.

    1985-01-01

    Introduces two articles that (1) supply the union and management perspectives of the Supreme Court decision in "Ellis vs. Brotherhood of Railway, Airline and Steamship Clerks" and (2) discuss how this decision affects the public sector in the area of education. (MLF)

  7. A Guide to the Changing Court Rulings on Union Security in the Public Sector: A Management Perspective.

    ERIC Educational Resources Information Center

    Clark, R. Theodore, Jr.

    1985-01-01

    In "Ellis vs. Brotherhood of Railway, Airline and Steamship Clerks," the Supreme Court clarified the line between permissible and nonpermissible expenses and what procedures must be available to prevent compulsory subsidization of ideological activity by objecting employees. This article also describes the Court's decisions subsequent to…

  8. Social Networking and the School Adjustment of Karen Refugee Youth from Burma: Determining the Effects of Ethnic Identity, Bonding Social Capital, and Facebook Use

    ERIC Educational Resources Information Center

    Lewis, Lucy D.

    2013-01-01

    In 2011 alone, over 56,000 refugees were admitted to the United States and a third of these individuals were under the age of 18 (Martin & Yankay, 2012). Researchers have found that the social capital developed through close and confiding relationships is instrumental in the academic outcomes of refugee youth (Kia-Keating & Ellis, 2007;…

  9. Readings from...Play as a Medium for Learning and Development.

    ERIC Educational Resources Information Center

    Bergen, Doris, Ed.

    The chapters and essays in this book are drawn from the 1988 edition of "Play as a Medium for Learning and Development." The first chapter, "The Challenge of Educational Play," by Bernard Spodek and Olivia N. Saracho, is followed by two essays: (1) "Play and the Origin of Species," (Michael J. Ellis); and (2)…

  10. Second Language Research Forum Colloquia 2009: Colloquium--Measuring the Effectiveness of Focus on Form

    ERIC Educational Resources Information Center

    Loewen, Shawn

    2011-01-01

    Focus on form, i.e. brief attention to language items within a larger meaning-focused context (Long 1991; Ellis 2001), occurs in a variety of L2 instructional contexts. Meta-analyses of the effectiveness of focus on form have found overall positive effects; however, these meta-analyses have commented on the small number of studies available for…

  11. Promoting and Assessing Mathematical Generalising

    ERIC Educational Resources Information Center

    Hill, Tiffany; Lannin, John; van Garderen, Delinda

    2015-01-01

    Helping students generalise mathematical ideas is an essential component of teaching and learning of mathematics (Lannin, Ellis, Elliott & Zbiek, 2011). However, it can be challenging for primary teachers to assess and promote generalisation. Because generalisation is an essential part of mathematics instruction, the authors highlight the…

  12. Making Sense of Frequency.

    ERIC Educational Resources Information Center

    Larsen-Freeman, Diane

    2002-01-01

    Responds to Ellis (2002), which focuses on frequency in language processing, language use, and language acquisition. Contextualizes the frequency factor in terms of the evolution of second language acquisition (SLA) research. Suggests that although relevant and important, the frequency factor requires greater definition and qualification.…

  13. The Contribution of Domain-Specific Knowledge in Predicting Students' Proportional Word Problem Solving Performance

    ERIC Educational Resources Information Center

    Jitendra, Asha K.; Lein, Amy E.; Star, Jon R.; Dupuis, Danielle N.

    2013-01-01

    Proportional thinking, which requires understanding fractions, ratios, and proportions, is an area of mathematics that is cognitively challenging for many children and adolescents (Fujimura, 2001; Lamon, 2007; Lobato, Ellis, Charles, & Zbiek, 2010; National Mathematics Advisory Panel [NMAP], 2008) and "transcends topical barriers in adult…

  14. A Usage-Based Investigation of L2 Lexical Acquisition: The Role of Input and Output

    ERIC Educational Resources Information Center

    Crossley, Scott; Kyle, Kristopher; Salsbury, Thomas

    2016-01-01

    This study investigates relations between second language (L2) lexical input and output in terms of word information properties (i.e., lexical salience; Ellis, 2006a). The data for this study come from a longitudinal corpus of naturalistic spoken data between L2 learners and first language (L1) interlocutors collected over a year's time. The…

  15. Interaction and Syntactic Priming: English L2 Speakers' Production of Dative Constructions

    ERIC Educational Resources Information Center

    McDonough, Kim

    2006-01-01

    Interaction research about the role of language production in second language (L2) development has focused largely on modified output, specifically learners' responses to negative feedback (Iwashita, 2001; Loewen & Philp, in press; Mackey & Philp, 1998; McDonough, 2005; McDonough & Mackey, in press; Nobuyoshi & Ellis, 1993; Pica, 1988; Shehadeh,…

  16. Parlaying the Prison Experience

    ERIC Educational Resources Information Center

    Gray, Katti

    2010-01-01

    At the close of almost 25 years of winding through New York state's prisons, former Black Panther Eddie Ellis walked away in 1994 with four college degrees he earned while incarcerated and kept treading his singular path as an activist on the issues of police, courts, crime and punishment. He then established the Center for NuLeadership on Urban…

  17. The Introductory Mathematics Curriculum: Misleading, Outdated, and Unfair and Responses .

    ERIC Educational Resources Information Center

    Roberts, Fred S.; And Others

    1984-01-01

    Roberts discusses his perception that the college introductory curriculum in mathematics is outdated. Reactions are then presented from Lucas, Hamming, Tall, David, Ellis, Thompson, Mason, and Guy, with a response by Roberts. The need to change instructional methods as well as curriculum is noted by most. (MNS)

  18. Prescriptions: Hyperrealism and the Chemical Regulation of Mood

    ERIC Educational Resources Information Center

    Bleakley, Alan; Jolly, Margaretta

    2012-01-01

    Using contemporary literary sources, we explore the powerful ideological framework that normalises prescription dependency as part of everyday life, focusing upon the treatment of mood disorders. Through a literary critical methodology, we read novels by American hyperrealists such as Bret Easton Ellis, David Foster Wallace and Rick Moody as…

  19. The Role(s) of Heparan Sulfate Proteoglycan(s) in the wnt-1 Signaling Pathway

    DTIC Science & Technology

    1998-08-01

    and invertebrates , and are initiated by formation of a polysaccharide chain consisting of (D-glucuronic acido....N-acetyl-D- glucosamine...M.C. Ellis, T.B. Kornberg, and C.S. Goodman. 1989. Expression of Engrailed protein in arthropods, annelids and chordates . Cell 58: 955-968. Patel N.H

  20. Respiratory Onset Detection Using Variance Fractal Dimension

    DTIC Science & Technology

    2007-11-02

    V.R., 1994. “The synchronization of respiration and swallow sounds with videofluroscopy during swallowing”. Dysphagia 9, 162-167 [3] Tarrant S.C, Ellis...R.E, Flack F.C, and Selley W.G., 1997. “Comparative review of techniques for recording respiratory events at rest and during deglutition”, Dysphagia

  1. Quality Assurance for University Teaching.

    ERIC Educational Resources Information Center

    Ellis, Roger, Ed.

    This book, written from a British perspective, presents 17 papers on quality assurance in teaching at the university level. The first eight papers address issues of assuring quality and include: (1) "Quality Assurance for University Teaching; Issues and Approaches" (Roger Ellis); (2) "A British Standard for University…

  2. Interior detail, building 810, view to north showing curved chord ...

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

    Interior detail, building 810, view to north showing curved chord sections of roof trusses, 90mm lens plus electronic flash fill lighting. - Travis Air Force Base, B-36 Hangar, Between Woodskill Avenue & Ellis, adjacent to Taxiway V & W, Fairfield, Solano County, CA

  3. On JALT 95: Curriculum and Evaluation. Proceedings of the JALT International Conference on Language Teaching/Learning (22nd, Nagoya, Japan, November 1995). Section Seven: Testing and Evaluation.

    ERIC Educational Resources Information Center

    Brown, James Dean; And Others

    This section contains conference papers on testing and evaluation in second language teaching. They include: "English Language Entrance Examinations in Japan: Problems and Solutions" (James Dean Brown); "Reliability and a Learner Style Questionnaire" (Dale T. Griffee); "Does It Work?" Evaluating Language Learning Tasks" (Rod Ellis); "Communicative…

  4. 76 FR 71598 - Pearl Harbor National Wildlife Refuge, Honolulu County, HI; Final Comprehensive Conservation Plan...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-18

    ... Fish and Wildlife Service Pearl Harbor National Wildlife Refuge, Honolulu County, HI; Final... http://www.fws.gov/pacific/planning/main/docs/HI-PI/docsjcpearl.htm . Email: Laura_Beauregard@fws.gov... Kamehameha Highway, Room 2C, Hale`iwa, HI 96712. FOR FURTHER INFORMATION CONTACT: David Ellis, Project...

  5. 76 FR 38414 - James Campbell National Wildlife Refuge, Honolulu County, HI; Draft Comprehensive Conservation...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-30

    ... Fish and Wildlife Service James Campbell National Wildlife Refuge, Honolulu County, HI; Draft... Highway, Room 2C, Hale`iwa, HI 96712. FOR FURTHER INFORMATION CONTACT: David Ellis, Project Leader, (808... Leader, O`ahu National Wildlife Refuge Complex, 66-590 Kamehameha Highway, Room 2C, Hale`iwa, HI...

  6. International Review of Research in Mental Retardation.

    ERIC Educational Resources Information Center

    Ellis, Norman R., Ed.

    The text of Volume 4 represents an international review of research in mental retardation dealing primarily with human and animal laboratory behavior. The contents range through the following topics: memory processes in retardates and normals by Norman Ellis; a theory of primary and secondary familial mental retardation by Arthur Jensen;…

  7. Missionary Girl Power: Saving the "Third World" One Girl at a Time

    ERIC Educational Resources Information Center

    Sensoy, Ozlem; Marshall, Elizabeth

    2010-01-01

    Deborah Ellis's "The Breadwinner" is a popular young adult novel about Muslim girls. In this paper, we offer an analysis of the representation of Muslim girls and women in the book as well as responses from undergraduate students enrolled in a children's literature course to these constructions. Building on the work of postcolonial feminism…

  8. The Federal Government's Relationship to the Nationally Recognized Accrediting Agencies.

    ERIC Educational Resources Information Center

    Office of Education (DHEW), Washington, DC.

    Proceedings include: the keynote address (John Ellis); themes and questions on accreditation and institutional eligibility (David A. Trivett); the task force on futuristic Office of Education criteria for recognition (Samuel P. Martin); possible accreditation agency uses of the products of the Office of Education project on improving the consumer…

  9. Tanning Effects of Aluminum -Genipin or -Vegetable Tannin Combinations

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Genipin, a naturally occurring protein crosslinking agent, isolated from the fruit of Gardenia jasmindides Ellis, is beginning to replace glutaraldehyde as a fixative for biological tissues. Earlier research in this laboratory demonstrated that when hide powder was first tanned with 8% aluminum and...

  10. Reconsidering Metaphorical Performance of EFL Learners with a Focus on Their Cognitive Features

    ERIC Educational Resources Information Center

    Soureshjani, Kamal Heidari; Safikhani, Arezoo

    2012-01-01

    Metaphoric language and understanding such a language have been of central concern in not only private language schools for intermediate and advanced learners, but in universities for students whose major is English. Besides, as Ellis (1994) maintains, various individual differences have an effect on students' performance and learning. One of the…

  11. Impacted tooth

    MedlinePlus

    ... management of impacted teeth. In: Hupp JR, Ellis E, Tucker MR, eds. Contemporary Oral and Maxillofacial Surgery . 6th ed. St. Louis, MO: Elsevier Mosby; 2014:chap 9. Read More Abscess Review Date 2/22/2016 Updated by: Michael Kapner, DDS, general and aesthetic dentistry, Norwalk Medical ...

  12. Dry socket

    MedlinePlus

    ... management of extraction complications. In: Hupp JR, Ellis E, Tucker MR, eds. Contemporary Oral and Maxillofacial Surgery . 6th ed. St. Louis, MO: Elsevier Mosby; 2014:chap 11. Review Date 11/10/2016 Updated by: Michael Kapner, DDS, General Dentistry, Norwalk, CT. Review provided ...

  13. 77 FR 75636 - Baldev Raj Bhutani; Denial of Hearing on Application for Special Termination of Debarment

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-21

    ..., committed and that he cooperated with FDA in resolving outstanding civil matters involving Alra and him on.... \\1\\ See United States v. Ellis, 527 F.3d. 203, 206 (1st Cir. 2008) (holding that ``substantial.... Bhutani, in any capacity during his period of debarment, will be subject to civil money penalties...

  14. Finding My Voice: [Re]living, [Re]learning, and [Re]searching Becoming a Singer in a Culture of Marginalization

    ERIC Educational Resources Information Center

    Manovski, Miroslav Pavle

    2012-01-01

    Boys who sing in school are often marginalized, taunted, sometimes called "gay." What if "singer" is someone's whole identity, and that person also happens to be gay? This autoethnography (Ellis, 2004) is a story of the education and development of such a singer and how, within this context, a voice teacher with an empowering…

  15. Promises & Challenges. Proceedings of the Annual Conference on Multimedia in Education & Industry (2nd, Savannah, Georgia, July 29-31, 1993).

    ERIC Educational Resources Information Center

    Association for Applied Interactive Multimedia, Columbia, SC.

    This proceedings of the Association for Applied Interactive Multimedia 1993 conference includes the following papers: "Multimedia in Education and Training: 'Promises and Challenges'" (H. D. Ellis); "Critical Thinking in the Multimedia, Self-Paced English Classroom" (L. Mortensen); "Computer Assisted Instruction" (C.…

  16. Risk Assessment for the Explosive Washout Lagoons (Site 4), Umatilla Depot Activity Hermiston, Oregon

    DTIC Science & Technology

    1992-03-01

    eti, 1985; Soares and Lock, 1980) revealed no additional data. Studies by Lee Ltji. (1978) and Ellis It jd. (1979) demonstrated depressed ...an acclimated microbiota . The leaching and transport of explosives as suspended particulates may lead to contamination of groundwater and nearby

  17. Opulence to Decadence: "The Outsiders" and "Less than Zero."

    ERIC Educational Resources Information Center

    Seay, Ellen A.

    1987-01-01

    Compares and contrasts two adolescent novels, S. E. Hinton's "The Outsiders," and B. Ellis' recent "Less than Zero." Argues for the social relevance and educational worth of both novels, showing that they raise moral and social issues teens need to think about and are already confronting. (JG)

  18. Smart Books: Thinking with a Purpose Across the Curriculum. Media Corner.

    ERIC Educational Resources Information Center

    Coleman, Rhoda, Ed.

    1995-01-01

    Presents reviews of four CD-ROM products developed by Scholastic Books, Inc. Maintains that each of the programs makes extensive use of primary sources and heighten student interest. Discusses products that cover Greek mythology, the sinking of the "Titanic," Malcolm X, and immigrants at Ellis Island. (CFR)

  19. The Employment Context. The Impact of the Law on the Lives of Women. Gender and American Law Series, No. 3.

    ERIC Educational Resources Information Center

    Maschke, Karen J., Ed.

    This book contains the following 14 articles on the effects of law on women in the United States: "Protection of Women Workers and the Courts: A Legal Case History" (Ann Corinne Hill); "Sexual Harassment and Race: A Legal Analysis of Discrimination" (Judy Trent Ellis); "Comparable Worth: Is This a Theory for Black Workers?" (Judy Scales-Trent);…

  20. Democratizing Academic Writing: A Revision of an Experience of Writing an Autoethnographic Dissertation in Color

    ERIC Educational Resources Information Center

    Polanco, Marcela

    2013-01-01

    In this paper, I revise my experience of writing an autoethnographic (Ellis, 2004) dissertation in the field of family therapy as a Colombian mestiza. I discuss how I grappled with my writing, and, in the process, stumbled into matters of democratizing texts. I problematize male-dominant academic standards, telling of the tensions when maneuvering…

  1. Testing a Threshold: An Approximate Replication of Johnson, Mercado & Acevedo 2012

    ERIC Educational Resources Information Center

    Johnson, Mark D.; Nicodemus, Christine L.

    2016-01-01

    In order to better understand the role of working memory in second language (L2) written production, this study contributes to recent research attempting to apply Kellogg's model of working memory in first language (L1) writing to L2 writing research (Ellis & Yuan 2004; Ong & Zhang 2010; Johnson, Mercado & Acevedo 2012). This paper…

  2. Great Facts for September.

    ERIC Educational Resources Information Center

    Hansen, Karen L.

    1992-01-01

    Offers answers to questions on this issue's September calendar of events for elementary students. Items addressed include the Viking 2 spacecraft, children's poetry, Ellis Island, the space shuttle Discovery, space satellites and space junk, ice cream cones, Dr. Seuss, and the praying mantis. (SM)

  3. Screening of microbial volatile organic compounds for detection of disease in cattle: development of lab-scale method

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The quest to find unique marker volatile organic compounds (VOCs) associated with human, livestock and wildlife diseases (Ellis et al., 2014) requires development of diagnostic non-invasive point-of-care tools and field surveillance technologies and strategies. The objective of this research was to ...

  4. Information-Seeking Behavior in the Digital Age: A Multidisciplinary Study of Academic Researchers

    ERIC Educational Resources Information Center

    Ge, Xuemei

    2010-01-01

    This article focuses on how electronic information resources influence the information-seeking process in the social sciences and humanities. It examines the information-seeking behavior of scholars in these fields, and extends the David Ellis model of information-seeking behavior for social scientists, which includes six characteristics:…

  5. Learning Style and Task Performance in Synchronous Computer-Mediated Communication: A Case Study of Iranian EFL Learners

    ERIC Educational Resources Information Center

    Hedayati, Mohsen; Foomani, Elham Mohammadi

    2015-01-01

    The study reported here explores whether English as a foreign Language (EFL) learners' preferred ways of learning (i.e., learning styles) affect their task performance in computer-mediated communication (CMC). As Ellis (2010) points out, while the increasing use of different sorts of technology is witnessed in language learning contexts, it is…

  6. Categories of Counselors Behavior as Defined from Cross-Validated Factoral Descriptions.

    ERIC Educational Resources Information Center

    Zimmer, Jules M.; And Others

    The intent of the study was to explore and categorize counselor responses. Three separate filmed presentations were shown. Participating with the same client were Albert Ellis, Frederick Perls, and Carl Rogers. At the beginning of each counselor statement, a number was inserted in sequence and remained on the videotape until completion of that…

  7. Pedagogical Moments: Affective Sexual Literacies in Film

    ERIC Educational Resources Information Center

    Clarke, Kyra

    2013-01-01

    This paper considers three pedagogical moments in the film "Tomorrow, When the War Began" (2010), contemplating the way in which they open a space for conversations about feelings, sexuality and gender. "Tomorrow, When the War Began" follows the plight of 17-year-old Ellie who returns to her rural town from a camping trip with…

  8. Adaptive Calibration of Children's Physiological Responses to Family Stress: The Utility of Evolutionary Developmental Theory--Comment on Del Giudice et al. (2012) and Sturge-Apple et al. (2012)

    ERIC Educational Resources Information Center

    Bugental, Daphne Blunt

    2012-01-01

    Children's physiological reactions to stress are presented from the broader theoretical perspective of adaptive calibration to the environment, as rooted in life history theory. Del Giudice, Hinnant, Ellis, and El-Sheikh (2012) focus on children's physiological responses to a stressful task as a consequence of their history of family stress.…

  9. The Effect of Orthophosphate as a Copper Corrosion Inhibitor in High Alkalinity Drinking Water Systems

    DTIC Science & Technology

    2007-03-01

    the cold-water sample faucet was turned on for one minute. The faucet was turned off, then dried with a paper towel . D. The LDPE sample collection...Sussex, England: Ellis Horwood, 1989. McClave, James T., Benson, P. George, and Sincich, Terry . Statistics for Business and Economics, 9th Edition

  10. [Difficult fiberoptic tracheal intubation in 1 month-old infant with Treacher Collins Syndrome].

    PubMed

    Fuentes, Ricardo; De la Cuadra, Juan Carlos; Lacassie, Hector; González, Alejandro

    2016-09-27

    Neonates and small infants with craniofacial malformation may be very difficult or impossible to mask ventilate or intubate. We would like to report the fiberoptic intubation of a small infant with Treacher Collins Syndrome using the technique described by Ellis et al.

  11. 77 FR 27847 - Qualification of Drivers; Exemption Applications; Vision

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-11

    ... left eye, 20/20. Following an examination in 2012, his optometrist noted, ``Mr. Ellis demonstrates.... Following an examination in 2012, his optometrist noted, ``Mr. Epps has sufficient visiual stability to... in his left eye, 20/20. Following an examination in 2012, his optometrist noted, ``In my...

  12. Clients as Teachers.

    ERIC Educational Resources Information Center

    Journal of Counseling and Development, 1988

    1988-01-01

    Contains eight accounts: "But Kids Don't Commit Suicide" (Sharon Andreozzi); "Learning from Multiplicity" (Kathryn Ellis); "Autonomy, Control, and Affiliation: Your Issues or Mine?" (Claudia Haferkamp); "Role Players" (Dennis Heitzmann); "Grief Counseling: Facilitating the Healing Process" (Rosemary Hughes); "Hospital Referral: A Test of Counselor…

  13. Temporal Fluctuations in Foreign Language Motivation: Results of a Longitudinal Study

    ERIC Educational Resources Information Center

    Kruk, Mariusz

    2016-01-01

    According to Ellis (2008), motivation has received a lot of interest in language learning. It is unfortunate, however, that little attention has been paid to the dynamic nature of the construct, particularly changes in motivation within single classes and series of lessons. The study whose results are reported in this paper aims at investigating…

  14. Participatory Formative Assessment in an Environment of High-Stakes Testing: An Autoethnography

    ERIC Educational Resources Information Center

    Johnson, Karin Pogna

    2011-01-01

    The purpose of this study was to describe my experiences as a campus principal in facilitating the use of participatory formative assessment (PFA) in an environment of accountability and high-stakes testing. The methodology I employed was autoethnography (Chang, 2008; Ellis, 2004; Reed-Danahay, 1997; Stinson, 2009). I kept journals over a period…

  15. 40 CFR 81.337 - Oklahoma.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Intrastate Unclassifiable/Attainment Alfalfa County Beaver County Blaine County Cimarron County Custer County.../Attainment Alfalfa County Beaver County Blaine County Cimarron County Custer County Dewey County Ellis County.... Beaver County Unclassifiable/Attainment. Beckham County Unclassifiable/Attainment. Blaine...

  16. 40 CFR 81.337 - Oklahoma.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Intrastate Unclassifiable/Attainment Alfalfa County Beaver County Blaine County Cimarron County Custer County.../Attainment Alfalfa County Beaver County Blaine County Cimarron County Custer County Dewey County Ellis County... 187Northwestern Oklahoma Intrastate Unclassifiable/Attainment Alfalfa County Beaver County Blaine County...

  17. 40 CFR 81.337 - Oklahoma.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Intrastate Unclassifiable/Attainment Alfalfa County Beaver County Blaine County Cimarron County Custer County.../Attainment Alfalfa County Beaver County Blaine County Cimarron County Custer County Dewey County Ellis County.... Beaver County Unclassifiable/Attainment. Beckham County Unclassifiable/Attainment. Blaine...

  18. The Fight over Screening Students to Prevent Suicide

    ERIC Educational Resources Information Center

    Ashford, Ellie

    2005-01-01

    An article by Ellie Ashford condensed from School Board News (Jun 28, 2005) is presented in this article. Proponents of mental health screening point to stories to illustrate the benefits of screening seemingly healthy teenagers. Yet, opposition to mental health screening is growing, with one school health expert calling it "as controversial…

  19. An Attempt to Elaborate a Construct to Measure the Degree of Explicitness and Implicitness in ELT Materials

    ERIC Educational Resources Information Center

    Criado Sanchez, Raquel; Perez, Aquilino Sanchez; Gomez, Pascual Cantos

    2010-01-01

    The concepts of "explicit" and "implicit" (knowledge) are at the core of SLA studies. We take "explicit" as conscious and declarative (knowledge); "implicit" as unconscious, automatic and procedural (knowledge) (DeKeyser, 2003; R. Ellis, 2005a, 2005b, 2009; Hulstjin, 2005; Robinson, 1996; Schmidt, 1990, 1994). The importance of those concepts and…

  20. 75 FR 25794 - Regulated Navigation Area: Red Bull Air Race World Championship, Upper New York Bay, Lower Hudson...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-10

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA08 Regulated Navigation Area: Red Bull Air Race World... State Park, New Jersey and Ellis Island, New Jersey and New York for the Red Bull Air Race World Championship, an event scheduled to be held over water. This regulation is necessary to protect...

  1. Irrational Beliefs of Shoplifters.

    ERIC Educational Resources Information Center

    Solomon, Gary S.; Ray, Joseph B.

    1984-01-01

    Developed and tested the Shoplifter Offenders Program (SOP) which uses the principles of Ellis' rational-emotive therapy (RET) as the conceptual foundation for the intensive, 8-hour, psychoeducational group counseling experience with adult first offender shoplifters (N=94). Results showed a recidivism rate of approximately one percent. (LLL)

  2. Implicit Knowledge, Explicit Knowledge, and Achievement in Second Language (L2) Spanish

    ERIC Educational Resources Information Center

    Gutierrez, Xavier

    2012-01-01

    Implicit and explicit knowledge of the second language (L2) are two central constructs in the field of second language acquisition (SLA). In recent years, there has been a renewed interest in obtaining valid and reliable measures of L2 learners' implicit and explicit knowledge (e.g., Bowles, 2011; R. Ellis, 2005). The purpose of the present study…

  3. Urban Ecosystems Research Joins Mainstream Ecology

    EPA Science Inventory

    We appreciate the heightened awareness that Zoë Corbyn’s article brings about the ostensible dearth of urban ecology studies and we laud the efforts of Martin, Ellis, and Blossey to quantify urban research efforts (“Ecologists shun the urban jungle”, online 16 July 2010; http://w...

  4. Pedagogical Effectiveness and Feasibility of Focus on Form vs. Focus on Meaning in a Reading Class: Compatibility of Teacher-Learner's Perspectives

    ERIC Educational Resources Information Center

    Abbasian, Gholam-Reza; Pooshaneh, Leila

    2015-01-01

    Many empirical investigations have demonstrated that explicit Focus on Form (FOF) methods are more effective than implicit Focus on Meaning (FOM) methods (Norris & Ortega, 2000), because in FOF instruction learners' attention is drawn to linguistic form while FOM instruction requires learners' attention to communicate (Ellis, 2001). However,…

  5. An Examination of the Relationship between Irrational Beliefs and Communication Apprehension.

    ERIC Educational Resources Information Center

    Ambler, Bob; Elkins, Mike

    A study of the relationship between irrational beliefs and communication apprehension (CA) sought to determine (1) if CA is related to a person's irrational beliefs as defined in research by Ellis; (2) to which, if any, of the CA contexts (group, meeting, dyadic, or public speaking) the irrational beliefs are most related; and (3) whether the…

  6. Edge-Splitting in a Cumulative Multimodal System, for a No-Wait Temporal Threshold on Information Fusion, Combined with an Under-Specified Display

    DTIC Science & Technology

    2006-01-01

    enough confidence on the state of the interpretation, as suggested in Neem [11]. The form in which a system manifests an interpretation – the...ICMI, Workshop on Multimodal, Multiparty Meeting Processing. 2005. Trento, Italy. [11] Barthelmess, P. and C.A. Ellis, The Neem Platform: an Evolvable

  7. Health Instruction Packages: Injections.

    ERIC Educational Resources Information Center

    Dunkleman, Ellie; And Others

    Text, illustrations, and exercises are utilized in this set of four learning modules designed to instruct nursing students in techniques and equipment utilized for intramuscular injections. The first module, "Equipment for Intramuscular Injections" by Ellie Dunkleman, presents guidelines for selecting needles of the proper length and…

  8. Evolution, Stress, and Sensitive Periods: The Influence of Unpredictability in Early versus Late Childhood on Sex and Risky Behavior

    ERIC Educational Resources Information Center

    Simpson, Jeffry A.; Griskevicius, Vladas; Kuo, Sally I-Chun; Sung, Sooyeon; Collins, W. Andrew

    2012-01-01

    According to a recent evolutionary life history model of development proposed by Ellis, Figueredo, Brumbach, and Schlomer (2009), growing up in harsh versus unpredictable environments should have unique effects on life history strategies in adulthood. Using data from the Minnesota Longitudinal Study of Risk and Adaptation, we tested how harshness…

  9. New Materials for Electrochemical Cells.

    DTIC Science & Technology

    1987-06-20

    mW 4. % Fgb ILE UQpj n~~ ’--- ,JUL1497 AD-A 183 659 1EPORT DOCUMENTATION PAGE lb. RESTRICTIVE MARKINGS Unclassafieid C 2.. SECURITY CLASSIFICATION...FY SOURCE: $43184, FY83; $35112, FY84; $47974, FY85; $59892, FY86; 6. SENIOR RESEARCH PERSONNEL: B. Ellis S. Hibble S. Pericard R.A. Burnham M.T

  10. My Granddaughter

    ERIC Educational Resources Information Center

    Wardle, Francis

    2009-01-01

    In this article, the author describes his granddaughter Elly (Elysia), who is just over a year old. While he deeply enjoys her company as a granddaughter--after all, her favorite activity is to pull his graying beard--as an instructor of child psychology, both for early childhood and psychology students, the author is fascinated with observing…

  11. School Counselor Supervisors' Perceptions of the Discrimination Model of Supervision

    ERIC Educational Resources Information Center

    Luke, Melissa; Ellis, Michael V.; Bernard, Janine M.

    2011-01-01

    The authors examined 38 school counselor supervisors' perceptions of the Discrimination Model (DM; Bernard, 1979, 1997) of supervision, replicating and extending Ellis and Dell's (1986) investigation of the DM with mental health counselor supervisors. Participants judged the dissimilarity of each unique combination of roles and foci of the DM. The…

  12. Water Quality Criteria for Nitroglycerin.

    DTIC Science & Technology

    1986-07-01

    International Labour Office 1983). and in the treatment of angina pectoris (Ellis et al. 1984). The objectives of this report are to review the available data...alcohol intolerance, heart palpitation, and angina pectoris (NIOSH 1978; Stokinger 1982). Availa- ble information indicates that continued exposure to

  13. Development of Measures of Success for Corporate Level Air Force Acquisition Initiatives

    DTIC Science & Technology

    2006-04-30

    Accounting, 74(41) (October 1992). Ellis, L. and C. Curtis. “ Measuring Customer Satisfaction ,” Research Technology Management, 38(5): 45-48... Measuring Customer Satisfaction . Milwaukee WI: Quality Press, 1992. International Council on Systems Engineering (INCOSE) Measurement Working Group

  14. Development of Measures of Success for Corporate Level Air Force Acquisition Initiatives

    DTIC Science & Technology

    2004-03-01

    System to Measure Performance,” Management Accounting, 74(41) (October 1992). Ellis, L. and C. Curtis. “ Measuring Customer Satisfaction ,” Research...The Agenda: What Every Business Must Do to Dominate the Decade. New York: Crown Business, 2001. Hayes, B. Measuring Customer Satisfaction . Milwaukee

  15. 76 FR 58262 - American River Power I, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-20

    ..., Ohio--Water Power Project No. 14257 to be located at the existing Ellis Ohio Lock Dam No. 11 on the... Energy Regulatory Commission American River Power I, LLC; Notice of Preliminary Permit Application..., 2011, American River Power I, LLC (American River) filed an application for a preliminary...

  16. Race, Change, and Urban Society. Urban Affairs Annual Reviews, Volume 5.

    ERIC Educational Resources Information Center

    Orleans, Peter, Ed.; Ellis, William Russell, Jr., Ed.

    Contents of this book include 20 chapters: (1) "Race Research: 'Up Against the Wall' in More Ways Than One," W.R. Ellis, Jr. and P. Orleans; (2) "Value Premises in Race Research: The Evolution of Environmentalism," E.L. Paynter; (3) "Power in the Reformulation of Race Research," I. Katznelson; (4) "Caste and Race Conflict in Cross-Cultural…

  17. Nurturing Potential. Annual SAGE (Society for the Advancement of Gifted Education) Conference Proceedings (4th, Edmonton, Alberta, Canada, September 24-25, 1993).

    ERIC Educational Resources Information Center

    Calgary Univ. (Alberta). Centre for Gifted Education.

    This proceedings contains summaries of 24 conference papers focusing on new directions in gifted education. Each paper's summary is about four pages in length. Papers have the following titles and authors: "Supporting Giftedness in Girls in the Classroom" (Julia Ellis); "A Community of Learners in ECS" (Anne Green);…

  18. 40 CFR 81.323 - Michigan.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    .... Ellis St. and N. Bridge St.) by latitude 43.1033911 N and longitude 85.2278464 W; western boundary 3..., sections 7-36 X AQCR 123 X AQCR 124 (Michigan portion) X AQCR 125 X AQCR 126 X Michigan—2010 Sulfur Dioxide... Sanilac County Shiawassee County Tuscola County AQCR 123 Metro Detroit-Port Huron Intrastate (Remainder...

  19. Beyond Cumulative Risk: Distinguishing Harshness and Unpredictability as Determinants of Parenting and Early Life History Strategy

    ERIC Educational Resources Information Center

    Belsky, Jay; Schlomer, Gabriel L.; Ellis, Bruce J.

    2012-01-01

    Drawing on life history theory, Ellis and associates' (2009) recent across- and within-species analysis of ecological effects on reproductive development highlighted two fundamental dimensions of environmental variation and influence: harshness and unpredictability. To evaluate the unique contributions of these factors, the authors of present…

  20. Services Supply Chain in the Department of Defense: A Comparison of Acquisition Management Practices in the Army, Navy, and Air Force

    DTIC Science & Technology

    2010-08-23

    k^s^i=mlpqdo^ar^qb=p`elli= models; and Schiele and McCue (2006) studied the acquisition of consulting services in the public sector. Although these...Aeronautics and Astronautics. Schiele , J. J., & McCue, C. P. (2006). Professional service acquisition in public sector procurement. International

  1. Using Knowledge about the Opponent in Game-Tree Search.

    DTIC Science & Technology

    1992-09-01

    Futer , Computer analysis of a rook endgame, in Machine Intelligence 9, Hayes, Michie and Mikulich eds. Ellis Horwood Ltd., 1979. [8] E. B. Baum, Minimax...Komissarchik and A.L. Futer , Computer analysis of a queen endgame, The ICCA Journal, Vol. 9, no. 4, December 1986. [27] D. Kopec and T. Niblett, How hard is

  2. Observations on Bubble Dynamics at High Pressures and Bubble Dynamics in Stagnation Flow.

    DTIC Science & Technology

    1982-11-30

    ratio is 1:1.16 in the first expo- picture taken at 200,000 frames per second sure and 1:1.38 in the second. with the laser camera. Cavitacion appears...6, pp. 495-496 (1944). 12. A.T. Ellis, "Techniques for Pressure Pulse Measurements and High Speed Photography in Ultrasonic Cavitation," Paper No. 8

  3. Crossing the Technology Adoption Chasm: Implications for DoD

    DTIC Science & Technology

    2008-06-30

    elli= cowpea varieties for extension education in Southwestern Nigeria. The Journal of Agricultural Education and Extension, 12(3), 195-200. O’Rourke...Adekoya, A.E. (2006). Implication of farmers’ propensity to discontinue adoption of downey-mildew resistant maize and improved cowpea varieties for... Cowpea (Farmer) Feedback Provision (-) Marketability Varieties Input Availability (+) Dependent Variable = De-adoption of Cowpea

  4. Facing the Future.

    ERIC Educational Resources Information Center

    Gallin, Alice, Ed.

    1983-01-01

    Ways that Catholic colleges and universities are trying to fulfill their role are discussed in articles by six college presidents and a church historian. In "The Catholic Liberal Art College: Has It a Future?" John Tracy Ellis notes some of the roots to be reaffirmed by Catholic colleges. In "Preparing for the Millennium," Theodore M. Hesburgh…

  5. Cognitive Therapist: A Dialogue with Aaron Beck.

    ERIC Educational Resources Information Center

    Weinrach, Stephen G.

    1988-01-01

    Presents interview with cognitive therapist Aaron Beck in which Beck describes cognitive therapy; the contributions of Freud, Maslow, Rogers, and Ellis; cultural, class, and gender issues; training of cognitive-behavior therapists; and the future direction of treatment of anxiety and depression. (ABL)

  6. School-Based Support for GLBT Students: A Review of Three Levels of Research

    ERIC Educational Resources Information Center

    Hansen, Anastasia L.

    2007-01-01

    Gay, lesbian, bisexual, and transgender (GLBT) students experience harassment, alienation, and violence in schools. Several school-based interventions have been suggested to provide a safe and effective learning environment for these students, but few have been evaluated or investigated experimentally. This review utilizes A. K. Ellis' (2001)…

  7. Comprehensive Education Bolivarian-Style: The Alternative School in Barrio Pueblo Nuevo, Venezuela

    ERIC Educational Resources Information Center

    Cole, Mike

    2014-01-01

    In this article, the author traces revolutionary developments in an alternative school in Barrio Pueblo Nuevo, Mérida, in the Bolivarian Republic of Venezuela, a school that caters for students between 4 and 14. He begins by recounting some fieldwork done at the school on his behalf by Edward Ellis in 2010. He goes on to discuss a video made at…

  8. Exploring the Potential of Rehearsal via Automatized Structured Tasks versus Face-to-Face Pair Work to Facilitate Pragmatic and Oral Development

    ERIC Educational Resources Information Center

    Sydorenko, Tetyana V.

    2011-01-01

    Past research has uncovered ways to improve communicative competence, including task-based learner-learner interaction (e.g., R. Ellis, 2003) and task planning (e.g., Mochizuki and Ortega, 2008). Teacher-guided planning particularly increases the benefits of learner-learner interaction (Foster and Skehan, 1999). One component of communicative…

  9. The Potential Importance of Conservation, Restoration and Altered Management Practices for Water Quality in the Wabash River Watershed

    EPA Science Inventory

    The Potential Importance of Conservation, Restoration and Altered Management Practices for Water Quality in the Wabash River Watershed Guoxiang Yang1, Elly P.H. Best2, Staci Goodwin3 1 ORISE Postdoc Research Associate at U.S. Environmental Protection Agency, National Risk...

  10. The Tullahoma Campaign, the Beginning of the End for the Confederacy

    DTIC Science & Technology

    2002-01-01

    1849, Bragg wed Eliza “Elise” Brooks Ellis, a rich daughter of a Louisiana sugar plantation owner, and in 1856 he resigned from the army to try his...by his continual ill health. He suffered from migraine headaches, boils, dyspepsia, chronic diarrhea and rheumatism. His bouts of illness made

  11. Rational Emotive Behavior Therapy with Troubled Students.

    ERIC Educational Resources Information Center

    Zionts, Paul; Zionts, Laura

    1997-01-01

    Based on the early work of Albert Ellis, seeks to identify and challenge irrational beliefs that underlie behavior problems. Outlines concepts and methods of Rational Emotive Behavior Theory and describes the application both in counseling and as a mental health curriculum for troubled children and youth. Offers classroom techniques. (RJM)

  12. Rational Emotive Behavior Therapy: Origins, Constructs, and Applications.

    ERIC Educational Resources Information Center

    Watson, Joshua C.

    In 1956, Dr. Albert Ellis presented his seminal work on Rational Therapy, subsequently renamed Rational Emotive Behavior Therapy (REBT) in 1993. This paper explores the origins, theoretical foundations, applications, and implications of REBT and provides a look at the empirical research available in support of the approach's efficacy. REBT is…

  13. Building Bridge between Learning and Positive Emotion: How to Apply Emotional Factor in Instructional Designing Process?

    ERIC Educational Resources Information Center

    Park, Sanghoon

    2004-01-01

    For millennia, emotional states have been viewed as avoidable impediments to rational thinking (Ellis & Newton, 2000). Several reasons have been pointed out. The lack of consensus of the definition on emotion that tend to conflict with each other was suggested as a main reason (Price, 1998). Also the difficulty of research methodology such as…

  14. An Entropy-based Approach to Detecting Anomalies in Voice over Internet Protocol (VoIP) Traffic

    DTIC Science & Technology

    2010-03-01

    on Applied Computing, Melbourne, Florida, 2003; pp 421—725. 5. J.C. Pelaez ; E.B. Fernandez. VoIP Network Forensic Patterns Published by the U.S...ELLIS J PELAEZ L M MARVEL P GUARINO A PRESSLEY RDRL WML A B FLANDERS D W WEBB A THOMPSON RDRL CIH N C ADAMS RDRL

  15. A Study of University Efforts to Provide Students with the Ability to Comprehend and Apply Total Quality Principles in Their Fields of Study

    DTIC Science & Technology

    1993-09-01

    Pharmacy. Salt Lake City UT. 8 July 1990. Chambers, Ellie. "Work-load and the Quality of Student Learning," Studies in Higher Education , 17: 141-152 (No...Indicator of Educational Quality," Studies in Higher Education 17, No.3: 337-348 (1992). 206 White, John A. Assistant Director, National Science Foundation

  16. The Linguistically Aware Teacher and the Teacher-Aware Linguist

    ERIC Educational Resources Information Center

    McCartney, Elspeth; Ellis, Sue

    2013-01-01

    This review evaluates issues of teacher linguistic knowledge relating to their work with children with speech, language and communication difficulties (SLCD). Information is from Ellis and McCartney [(2011a). "Applied linguistics and primary school teaching." Cambridge: Cambridge University Press], a state-of-the-art text deriving from a British…

  17. From Seeing Adverbs to Seeing Verbal Morphology: Language Experience and Adult Acquisition of L2 Tense

    ERIC Educational Resources Information Center

    Sagarra, Nuria; Ellis, Nick C.

    2013-01-01

    Adult learners have persistent difficulty processing second language (L2) inflectional morphology. We investigate associative learning explanations that involve the blocking of later experienced cues by earlier learned ones in the first language (L1; i.e., transfer) and the L2 (i.e., proficiency). Sagarra (2008) and Ellis and Sagarra (2010b) found…

  18. Learned Attention in Adult Language Acquisition: A Replication and Generalization Study and Meta-Analysis

    ERIC Educational Resources Information Center

    Ellis, Nick C.; Sagarra, Nuria

    2011-01-01

    This study investigates associative learning explanations of the limited attainment of adult compared to child language acquisition in terms of learned attention to cues. It replicates and extends Ellis and Sagarra (2010) in demonstrating short- and long-term learned attention in the acquisition of temporal reference in Latin. In Experiment 1,…

  19. Understanding Proportional Reasoning in Pre-Service Teachers

    ERIC Educational Resources Information Center

    Johnson, Kim H.

    2013-01-01

    The purpose of this study is to examine the proportional reasoning of pre-service teachers at the beginning of their teacher preparation program using the developmental shifts described by Lobato and Ellis (2010). They cast changes in proportional reasoning as transitions or "shifts" in students' thinking and these shifts can serve as…

  20. Beyond Borders: Reading "Other" Places in Children's Literature

    ERIC Educational Resources Information Center

    Stewart, Susan Louise

    2008-01-01

    The author analyzes two texts, Gloria Whelan's "Homeless Bird" and Deborah Ellis's "Parvana's Journey", in an attempt to explain some of the problems and difficulties associated with those texts. The author examines Whelan's representations of India and finds troubling binaries associated with that text. In comparison, the…

  1. The Efficacy of Corrective Feedback and Textual Enhancement in Promoting the Acquisition of Grammatical Redundancies

    ERIC Educational Resources Information Center

    Lyddon, Paul A.

    2011-01-01

    Many second language acquisition researchers (e.g., Doughty & Williams, 1998; R. Ellis, 2007; Long, 1996, 2007; Lyster, Lightbown, & Spada, 1999; Russell & Spada, 2006) have advocated the use of negative feedback to promote learner noticing of errors and the internalization of correct forms. At the same time, the true efficacy of this practice is…

  2. Gender Similarities in Math Performance from Middle School through High School

    ERIC Educational Resources Information Center

    Scafidi, Tony; Bui, Khanh

    2010-01-01

    Using data from 10 states, Hyde, Lindberg, Linn, Ellis, and Williams (2008) found gender similarities in performance on standardized math tests. The present study attempted to replicate this finding with national data and to extend it by examining whether gender similarities in math performance are moderated by race, socioeconomic status, or math…

  3. Grammar Instruction for Adult English Language Learners: A Task-Based Learning Framework

    ERIC Educational Resources Information Center

    Huang, Jiuhan

    2010-01-01

    Over the past few decades, grammar instruction has moved from its central position in traditional language teaching approaches to playing virtually no role in communicative approaches. This article first gives a historical perspective of grammar instruction. Then it outlines the 10 principles of instructed language learning formulated by Ellis and…

  4. Possibilities and Challenges of Learning German in a Multimodal Environment: A Case Study

    ERIC Educational Resources Information Center

    Abrams, Zsuzsanna Ittzes

    2016-01-01

    Despite a growing body of research on task-based language learning (TBLT) (Samuda & Bygate, 2008; Ellis, 2003), there is still little information available regarding the pedagogical design behind tasks and how they are implemented (Samuda & Bygate, 2008). Scholars in computer-mediated second language (L2) learning have called for research…

  5. Measuring University-Level L2 Learners' Implicit and Explicit Linguistic Knowledge

    ERIC Educational Resources Information Center

    Zhang, Runhan

    2015-01-01

    Although many theoretical issues revolving around implicit and explicit knowledge in second language (L2) acquisition hinge on the ability to measure these two types of knowledge, few empirical studies have attempted to do so. However, R. Ellis (2005) did develop a battery of tests intended to provide relatively separate measures. This study aims…

  6. Relation between trophic position and mercury accumulation among fishes from the Tongue River Reservoir, Montana

    SciTech Connect

    Phillips, G.R.; Lenhart, T.E.; Gregory, R.W.

    1980-06-01

    Concentrations of total mercury were determined in muscle tissue from northern pike (Esox lucius), sauger (Stizostedion canadense), walleye (S. vitreum), black crappie (Pomoxis nigromaculatus), and white crappie (P. annularis) collected from the Tongue River Reservoir, Montana, prior to extensive surface coal-mine development in the region. Mercury concentrations in fish flesh increased with fish size and age; larger individuals of all five species exceeded the US Food and Drug Administration's mercury concentration guideline of 0.5 ..mu..g/g. The rate of mercury accumulation was faster in the piscivorous species (northern pike, saugers, and walleyes) than in the planktivores (black crappies and white crappies). Differences in mercury uptake rates among the various species appeared to be directly related to the quantity of mercury eaten; results are discussed in relation to published models of mercury accumulation by fishes.

  7. Marine fishes new to continental United States waters, North Carolina, and the Gulf of Mexico

    USGS Publications Warehouse

    Quattrini, A.M.; Ross, S.W.; Sulak, K.J.; Necaise, Ann Marie; Casazza, T.L.; Dennis, G.D.

    2004-01-01

    Along the southeastern coast of the United States, hardground systems support a high diversity of sub-tropical and tropical fishes. Many of these hardgrounds occur in deep (ca. ??? 50 m) waters and their fauna is still poorly described; however, with concentrated sampling in these deeper areas, new records of fishes continue to emerge. In the northeastern Gulf of Mexico and off North Carolina, we used the Johnson-Sea-Link submersible, remotely operated vehicles, trawling gear, and angling gear to sample deep reef systems (38-248 m). We document five records of fishes new to continental United States waters, including Liopropoma aberrans, Parasphyraenops incisus, Lipogramma regia, Apogon gouldi, and Prognathodes guyanensis. We also report range extensions for eleven species: Gymnothorax hubbsi, Gymnothorax vicinus, Lepophidium staurophor, Cypselurus comatus, Liopropoma mowbrayi, Serranus annularis, Rypticus saponaceus, Caranx lugubris, Prognathodes aculeatus, Centropyge argi, and Canthigaster jamestyleri.

  8. Host fish suitability for glochidia of Ligumia recta

    USGS Publications Warehouse

    Khym, J.R.; Layzer, J.B.

    2000-01-01

    In the early 1900s several hosts were identified for the black sandshell Ligumia recta. Recent attempts to propagate juvenile L. recta with two of the reported hosts (bluegill Lepomis macrochirus and largemouth bass Micropterus salmoides) have produced inconsistent results and few juveniles. We conducted this study to determine which of the reported hosts or other fish hosts were the most suitable for glochidial metamorphosis. The duration of glochidial metamorphosis varied among seasons. Despite similar water temperatures, juveniles metamorphosed sooner and over a shorter period of time in the spring than early fall; the modal day of metamorphosis differed by 78 d. Relatively few juveniles were recovered from bluegill and largemouth bass in three trials. White crappie Pomoxis annularis and black crappie P. nigromaculatus were marginally suitable hosts. Although glochidia encysted on all hosts, >10x more juveniles metamorphosed on sauger Stizostedion canadense compared to other hosts tested.

  9. [Use of properties and regulation peculiarities of enzymes of glycogenolysis in fish skeletal muscle depending on peculiarities of motor activity of species].

    PubMed

    Serebrenikova, T P; Nesterov, V P

    2008-01-01

    Levels of activity, properties, and peculiarities of activation of glycogen phosphorylase (GP; EC 2.4.1.1) and glycogen phosphorylase kinase (GPK; EC 2.7.1.38) were studied in the white skeletal muscle of fish differing in motor behavior. No differences in the GP and GPK activity levels were revealed in laskir Diplodus annularis (L.), horse mackerel Trachurus mediterraneus ponticus, salmon Salmo trutta morphario, scorpena Scorpaena porcus, Scophtalnus maeoticus, and carp Cyprinus carpio; however, properties of the isolated enzymes and peculiarities of formation of their activated forms during swimming in a hydrodynamic tube are determined by functional peculiarities of the muscle tissue and are associated with the motor activity character of the species. In fish capable for the spurt type of swimming (scorpena, salmon) the more rapid ion regulation plays the predominant role. In other species, the glycogenolysis hormonal regulation leading to a change of the GPK activity index has been found.

  10. A 107-year-old coral from Florida Bay: barometer of natural and man- induced catastrophes?

    USGS Publications Warehouse

    Hudson, J.H.; Powell, G.V.N.; Robblee, M.B.; Smith, T. J.

    1989-01-01

    The 107-yr growth history of a massive coral Solenastrea bournoni from Florida Bay was reconstructed with X-ray imagery from a single 4 in. diameter (10 cm) core that penetrated the exact epicenter of the 95.3 cm high colony. Growth increments totalled 952.9 mm, averaging 8.9 mm/yr over the life of the coral. Growth rate trends in the Florida Bay coral were compared to those in a Montastraea annularis of similar age from a nearby patch reef on the Atlantic Ocean side of the Florida Keys. It was concluded that growth rate, at least in these specimens, is a questionable indicator of past hurricanes and freezes. There does appear to be, however, a possible cause-and-effect relationship between major man-induced environmental perturbations and a prolonged reduction in growth rate in each coral's growth record. -from Authors

  11. Molecular Detection of the Three Major Pathogenic Vibrio Species from Seafood Products and Sediments in Tunisia Using Real-Time PCR.

    PubMed

    Gdoura, Morsi; Sellami, Hanen; Nasfi, Hanen; Trabelsi, Rahma; Mansour, Sabeur; Attia, Touraya; Nsaibia, Siwar; Vallaeys, Tatiana; Gdoura, Radhouane; Siala, Mariam

    2016-12-01

    Vibrio spp. have emerged as a serious threat to human health worldwide. V. parahaemolyticus , V. cholerae , and V. vulnificus pose a considerable public health risk in Tunisia because they cause sporadic and epidemic foodborne infections associated with the consumption of raw or undercooked contaminated seafood. More recently, toxR-positive V. alginolyticus was also reported to be a potential source of contaminated seafood. A total of 247 samples, including 113 fishes ( Labrus viridis , Penaeus kerathurus , Diplodus annularis , Diplodus sparaillon , Scorparna porcus , Sarpa salpa , Dentex dentex , Scorparna scrofa , Sardinella aurita , Trachurus trachurus , Synodus saurus , Pagellus erythrinus , and Metapenaeus monoceros ), 83 clams ( Ruditapes decussatus species), 30 seawater samples, and 21 sediment samples were analyzed using traditional culture methods (ISO/TS 21872-1; International Organization for Standardization 2007) and a conventional PCR method for Vibrio spp.

  12. Recruitment variation of crappies in response to hydrology of Tennessee reservoirs

    USGS Publications Warehouse

    Sammons, S.M.; Bettoli, P.W.; Isermann, D.A.; Churchill, T.N.

    2002-01-01

    Black crappies Pomoxis nigromaculatus and white crappies P. annularis were sampled to index recruitment in seven Tennessee reservoirs (four main-stem and three tributary storage impoundments). Crappie recruitment in tributary storage impoundments appeared to be consistently higher in years of high discharge during the prespawn period (1 January-31 March). A similar relation was found in one main-stem impoundment; however, crappie recruitment in two main-stem impoundments was inversely related to discharge during the spawning period (1 April-30 May), and little recruitment variation was found in the fourth main-stem impoundment. In general, reservoir hydrology appeared to have a stronger effect on crappie recruitment in tributary storage impoundments than in main-stem impoundments, possibly because recruitment was more variable in tributary systems. Thus, it is likely that crappie populations will rarely have strong year-classes simultaneously over a wide geographic area or even within a single watershed.

  13. Concentration of elements in whole-body fish, fish fillets, fish muscle plugs, and fish eggs from the 2008 Missouri Department of Conservation General Contaminant Monitoring Program

    USGS Publications Warehouse

    May, Thomas W.; Walther, Michael J.; Brumbaugh, William G.; McKee, Michael J.

    2009-01-01

    This report presents the results of a contaminant monitoring survey conducted annually by the Missouri Department of Conservation to examine the levels of selected elemental contaminants in whole-body fish, fish fillets, fish muscle plugs, and fish eggs. Whole-body, fillet, or egg samples of catfish (Ictalurus punctatus, Ictalurus furcatus, Pylodictis olivaris), largemouth bass (Micropterus salmoides), walleye (Sander vitreus), crappie (Pomoxis annularis, Pomoxis nigromaculatus), shovelnose sturgeon (Scaphirhynchus platorynchus), northern hog sucker (Hypentelium nigricans), and Missouri saddled darter (Etheostoma tetrazonum) were collected from 23 sites as part of the Missouri Department of Conservation's Fish Contaminant Monitoring Program. Fish dorsal muscle plugs also were collected from walleye (Sander vitreus) at one of the sites.

  14. FISH-Flow: a quantitative molecular approach for describing mixed clade communities of Symbiodinium

    NASA Astrophysics Data System (ADS)

    McIlroy, S. E.; Smith, G. J.; Geller, J. B.

    2014-03-01

    Our understanding of reef corals and their fate in a changing climate is limited by our ability to monitor the diversity and abundance of the dinoflagellate endosymbionts that sustain them. This study combined two well-known methods in tandem: fluorescent in situ hybridization (FISH) for genotype-specific labeling of Symbiodinium and flow cytometry to quantify the abundance of each symbiont clade in a sample. This technique (FISH-Flow) was developed with cultured Symbiodinium representing four distinct clades (based on large subunit rDNA) and was used to distinguish and quantify these types with high efficiency and few false positives. This technique was also applied to freshly isolated symbionts of Orbicella faveolata and Orbicella annularis. Isolates from acutely bleached coral tissues had significantly lower labeling efficiency; however, isolates from healthy tissue had efficiencies comparable to cultured Symbiodinium trials. RNA degradation in bleaching samples may have interfered with labeling of cells. Nevertheless, we were able to determine that, with and without thermal stress, experimental columns of the coral O. annularis hosted a majority of clade B and B/C symbionts on the top and side of the coral column, respectively. We demonstrated that, for cultured Symbiodinium and Symbiodinium freshly isolated from healthy host tissues, the relative ratio of clades could be accurately determined for clades present at as low as 7 % relative abundance. While this method does not improve upon PCR-based techniques in identifying clades at background levels, FISH-Flow provides a high precision, flexible system for targeting, quantifying and isolating Symbiodinium genotypes of interest.

  15. Monitoring the coral disease, plague type II, on coral reefs in St. John, U.S. Virgin Islands

    USGS Publications Warehouse

    Miller, J.; Rogers, C.; Waara, R.

    2003-01-01

    In July 1997, conspicuous white patches of necrotic tissue and bare skeleton began to appear on scleractinian corals in several bays around St. John, US Virgin Islands. Analysis of diseased coral tissue from five different species confirmed the presence of a Sphingomonas-like bacterium, the pathogen for plague type II. To date, 14 species of hard corals have been affected by plague type II around St. John. This disease was monitored at Haulover and Tektite Reefs at depths of 7-12 meters. The study site at Tektite Reef has >50% cover by scleractinian corals with 90% of hard corals being composed of Montastraea annular is. Monthly surveys at Tektite Reef from December 1997 to May 2001 documented new incidence of disease (bare white patches of skeleton) every month with associated loss of living coral and 90.5% of all disease patches occurred on M. annularis. The frequency of disease within transects ranged from 3 to 58%, and the area of disease patches ranged from 0.25 to 9000 cm2. The average percent cover by the disease within 1 m2 ranged from 0.01% (?? 0.04 SD) to 1.74% (?? 9.08 SD). Photo-monitoring of 28 diseased corals of 9 species begun in September 1997 at Haulover Reef revealed no recovery of diseased portions with all necrotic tissue being overgrown rapidly by turf algae, usually within less than one month. Most coral colonies suffered partial mortality. Very limited recruitment (e.g., of Agaricia spp., Favia spp. and sponges) has been noted on the diseased areas. This coral disease has the potential to cause more loss of live coral on St. John reefs than any other stress to date because it targets the dominant reef building species, M. annularis.

  16. Radiative energy budget reveals high photosynthetic efficiency in symbiont-bearing corals

    PubMed Central

    Brodersen, Kasper Elgetti; Lichtenberg, Mads; Ralph, Peter J.; Kühl, Michael; Wangpraseurt, Daniel

    2014-01-01

    The light field on coral reefs varies in intensity and spectral composition, and is the key regulating factor for phototrophic reef organisms, for example scleractinian corals harbouring microalgal symbionts. However, the actual efficiency of light utilization in corals and the mechanisms affecting the radiative energy budget of corals are underexplored. We present the first balanced light energy budget for a symbiont-bearing coral based on a fine-scale study of the microenvironmental photobiology of the massive coral Montastrea curta. The majority (more than 96%) of the absorbed light energy was dissipated as heat, whereas the proportion of the absorbed light energy used in photosynthesis was approximately 4.0% under an irradiance of 640 µmol photons m−2 s−1. With increasing irradiance, the proportion of heat dissipation increased at the expense of photosynthesis. Despite such low energy efficiency, we found a high photosynthetic efficiency of the microalgal symbionts showing high gross photosynthesis rates and quantum efficiencies (QEs) of approximately 0.1 O2 photon−1 approaching theoretical limits under moderate irradiance levels. Corals thus appear as highly efficient light collectors with optical properties enabling light distribution over the corallite/tissue microstructural canopy that enables a high photosynthetic QE of their photosynthetic microalgae in hospite. PMID:24478282

  17. Competitive interactions between corals and turf algae depend on coral colony form.

    PubMed

    Swierts, Thomas; Vermeij, Mark Ja

    2016-01-01

    Turf algae are becoming more abundant on coral reefs worldwide, but their effects on other benthic organisms remain poorly described. To describe the general characteristics of competitive interactions between corals and turf algae, we determined the occurrence and outcomes of coral-turf algal interactions among different coral growth forms (branching, upright, massive, encrusting, plating, and solitary) on a shallow reef in Vietnam. In total, the amount of turf algal interaction, i.e., the proportion of the coral boundary directly bordering turf algae, was quantified for 1,276 coral colonies belonging to 27 genera and the putative outcome of each interaction was noted. The amount of turf algal interaction and the outcome of these interactions differed predictably among the six growth forms. Encrusting corals interacted most often with turf algae, but also competed most successfully against turf algae. The opposite was observed for branching corals, which rarely interacted with turf algae and rarely won these competitive interactions. Including all other growth forms, a positive relationship was found between the amount of competitive interactions with neighboring turf algae and the percentage of such interaction won by the coral. This growth form dependent ability to outcompete turf algae was not only observed among coral species, but also among different growth forms in morphologically plastic coral genera (Acropora, Favia, Favites, Montastrea, Montipora, Porites) illustrating the general nature of this relationship.

  18. Competitive interactions between corals and turf algae depend on coral colony form

    PubMed Central

    Vermeij, Mark JA

    2016-01-01

    Turf algae are becoming more abundant on coral reefs worldwide, but their effects on other benthic organisms remain poorly described. To describe the general characteristics of competitive interactions between corals and turf algae, we determined the occurrence and outcomes of coral–turf algal interactions among different coral growth forms (branching, upright, massive, encrusting, plating, and solitary) on a shallow reef in Vietnam. In total, the amount of turf algal interaction, i.e., the proportion of the coral boundary directly bordering turf algae, was quantified for 1,276 coral colonies belonging to 27 genera and the putative outcome of each interaction was noted. The amount of turf algal interaction and the outcome of these interactions differed predictably among the six growth forms. Encrusting corals interacted most often with turf algae, but also competed most successfully against turf algae. The opposite was observed for branching corals, which rarely interacted with turf algae and rarely won these competitive interactions. Including all other growth forms, a positive relationship was found between the amount of competitive interactions with neighboring turf algae and the percentage of such interaction won by the coral. This growth form dependent ability to outcompete turf algae was not only observed among coral species, but also among different growth forms in morphologically plastic coral genera (Acropora, Favia, Favites, Montastrea, Montipora, Porites) illustrating the general nature of this relationship. PMID:27190707

  19. Biochemical measures of coral metabolic activity, nutritional status, and microbial infection with exposure to oil- and gas-well drilling fluids

    SciTech Connect

    White, D.C.; Nickels, J.S.; Gehron, M.J.; Parker, J.H.; Martz, R.F.

    1987-03-01

    The reef building coral Montastrea annularus was exposed continuously to suspensions of oil- and gas-well drilling fluids at concentrations of 0.1 ml/liter, 0.01 ml/liter, and 0.001 ml/liter in flowing seawater at the U.S. Naval Stage I platform. After 6 weeks exposure, coral fragments of 30 to 60 sq cm surface area were broken off, rinsed in seawater, and extracted in a one-phase chloroform-methanol seawater extract and returned to the laboratory, the lipids were analyzed for their phospholipid content, alkyl fatty acid composition, and neutral lipid triglyceride glycerol. The aqueous phase was analyzed for free amino acid composition. Biochemical evidence of stress was reflected in the cessation of growth as measured in depressed diacyl phospholipid. Detailed analysis of the acyl fatty acid composition by capillary gas chromatography showed changes in polyenoic fatty acids, suggesting possible changes in the metabolism of the fatty acids induced by the exposure to the drilling fluids.

  20. Miocene reefs of Dominican Republic

    SciTech Connect

    Evans, C.C.

    1988-01-01

    The reefs are overlain by conglomeratic strata. The stratigraphic setting of these reefs suggests that they have developed along the stalled portions of rapidly prograding fan deltas. Thickets and layers of coral debris are found seaward and stratigraphically above the well-developed reef. The matrix sediments are exclusively fine-grained sand to mud, and the fauna are suggestive of more open shelf conditions. In thickets, branched (porites spp., Pocillopora spp.), small massive (Montastrea spp., Siderastrea spp.), and foliose or plate like (Agaricia spp.) corals are found upright in the muddy sediment. Similarities in coral species and areal proximity suggest that thickets are the source of most layers of coralline debris. The association of coral debris with graded bedding and cross-bedding suggests that coral debris has been reworked by storms. The growth of corals and development of coral reefs in the Miocene-Pliocene Yaque Group is limited only by opportunities created by the slowing of siliciclastic sedimentation. Soft, muddy, terrigenous substrates and a continuing supply of terrigenous mud exert only a limited, indirect effect on reef growth.

  1. Coral Skeletal Records of Water Quality Change in Mesoamerica

    NASA Astrophysics Data System (ADS)

    Carilli, J.; Prouty, N.; Hughen, K.; Norris, R. D.

    2007-12-01

    Corals are thought to incorporate metals into their aragonitic skeletons in direct proportion to those found in the surrounding seawater. As they can live for hundreds of years, they are unique recorders of water quality over anthropogenic time scales. We utilized cores from the massive coral Montastrea faveolata from four locations across the Mesoamerican Barrier Reef, the second largest barrier reef on the planet. The sites were chosen to span an inferred gradient of runoff, from the high runoff Sapodilla Cayes and Cayos Cochinos to Utila and Turneffe Atoll, the farthest from major runoff effects. Surface samples of corals at all sites confirm that Turneffe is the least runoff-affected site. Annual samples of coral skeletal material were separated and cleaned using a multi-step leaching procedure to remove surface and interstitial contamination. 18 metals were then measured using an inductively coupled plasma mass spectrometer and normalized to calcium. Ba/Ca, a proxy for sedimentation, shows similar patterns for annual samples from the Sapodilla Cayes and Cayos Cochinos. At both sites, background Ba/Ca increases between ~1950-1970, indicating an overall increase in the amount of sediment reaching the reefs. Also, large spikes in the record may record massive runoff events from storms tracking overland, such as Hurricane Fifi in 1974. 100-150 year long records of Ba/Ca and other metals from these four sites will be compared to investigate changes in water quality over time and location on the reef.

  2. Effects of disturbance on coral communities: bleaching in Moorea, French Polynesia

    NASA Astrophysics Data System (ADS)

    Gleason, M. G.

    1993-11-01

    This study examines patterns of susceptibility and short-term recovery of corals from bleaching. A mass coral bleaching event began in March, 1991 on reefs in Moorea, French Polynesia and affected corals on the shallow barrier reef and to >20 m depth on the outer forereef slope. There were significant differences in the effect of the bleaching among common coral genera, with Acropora, Montastrea, Montipora, and Pocillopora more affected than Porites, Pavona, leptastrea or Millepora. Individual colonies of the common species of Acropora and Pocillopora were marked and their fate assessed on a subsequent survey in August, 1991 to determine rates of recovery and mortality. Ninety-six percent of Acropora spp. showed some degree of bleaching compared to 76% of Pocillopora spp. From March to August mortality of bleached colonies of Pocillopora was 17%, 38% recovered completely, and many suffered some partial mortality of the tissue. In contrast, 63% of the Acropora spp. died, and about 10% recovered completely. Generally, those colonies with less than 50% of the colony area affected by the bleaching recovered at a higher rate than did those with more severe bleaching. Changes in community composition four months after the event began included a significant decrease only in crustose algae and an increase in cover of filamentous algae, much of which occupied plate-like and branching corals that had died in the bleaching event. Total coral cover and cover of susceptible coral genera had declined, but not significantly, after the event.

  3. Radiative energy budget reveals high photosynthetic efficiency in symbiont-bearing corals.

    PubMed

    Brodersen, Kasper Elgetti; Lichtenberg, Mads; Ralph, Peter J; Kühl, Michael; Wangpraseurt, Daniel

    2014-04-06

    The light field on coral reefs varies in intensity and spectral composition, and is the key regulating factor for phototrophic reef organisms, for example scleractinian corals harbouring microalgal symbionts. However, the actual efficiency of light utilization in corals and the mechanisms affecting the radiative energy budget of corals are underexplored. We present the first balanced light energy budget for a symbiont-bearing coral based on a fine-scale study of the microenvironmental photobiology of the massive coral Montastrea curta. The majority (more than 96%) of the absorbed light energy was dissipated as heat, whereas the proportion of the absorbed light energy used in photosynthesis was approximately 4.0% under an irradiance of 640 µmol photons m(-2) s(-1). With increasing irradiance, the proportion of heat dissipation increased at the expense of photosynthesis. Despite such low energy efficiency, we found a high photosynthetic efficiency of the microalgal symbionts showing high gross photosynthesis rates and quantum efficiencies (QEs) of approximately 0.1 O2 photon(-1) approaching theoretical limits under moderate irradiance levels. Corals thus appear as highly efficient light collectors with optical properties enabling light distribution over the corallite/tissue microstructural canopy that enables a high photosynthetic QE of their photosynthetic microalgae in hospite.

  4. Mitotic index and size of symbiotic algae in Caribbean Reef corals

    NASA Astrophysics Data System (ADS)

    Wilkerson, F. P.; Kobayashi, D.; Muscatine, L.

    1988-05-01

    Size and frequency of division were determined for zooxanthellae from nine scleractinian coral species collected in February, 1983 at Discovery Bay, Jamaica, from four depths over a 51 m bathymetric range. Mean diameters of zooxanthellae ranged from 6.4 to 12.6 μm. Small zooxanthellae were found in Madracis mirabilis, Eusmilia fastigiata and Dendrogyra cylindrus whereas larger cells were seen in Agaricia agaricites, Porites astreoides, Montastrea cavernosa and Acropora cervicornis. Zooxanthellae division was not phased over a diel cycle. The percentage of zooxanthellae in a paired stage of cytokinesis (mitotic index or MI) was highly variable and ranged from 1.1% to 14.1%. Values measured in E. fastigiata and D. cylindrus were greater than in the other corals. MI was higher in branch tips of A. cervicornis than in branch bases. Daily average MI was negatively correlated with mean cell diameter and for a majority of the coral species increased with habitat depth. MI values were used to estimate specific growth rates and generation times for zooxanthellae in vivo for comparison with other dinoflagellates.

  5. New distribution record for the rare limpet Acroloxus coloradensis (Henderson) (Gastropoda: Acroloxidae) from Montana

    USGS Publications Warehouse

    Hossack, Blake R.; Robert L. Newell,

    2013-01-01

    The Rocky Mountain Capshell, Acroloxus coloradensis (Henderson, 1930), the only North American member of the basommatophoran family Acroloxidae, is broadly distributed across southern Canada and south into the Rocky Mountains in the USA (Turgeon et al., 1998; Lee and Ackerman, 2000). Despite its wide geographic range, A. coloradensis has been documented from < 30 locations, mostly in British Columbia, Alberta, Ontario, and Quebec (Lee and Ackerman, 2000; Anderson, 2005). Relict populations of A. coloradensis in the USA have been documented from only 6 sites in Colorado and 2 sites in Glacier National Park (Glacier NP), Montana (Anderson, 2005; Ellis et al., 2004). In Glacier NP, A. coloradensis was first reported from Lost Lake (Figure 1; Russell and Brunson, 1967). A second population in the park was discovered in Trout Lake in 2001 (Ellis et al., 2004). In both lakes, A. coloradensis was found primarily under rocks and other cover objects.

  6. Speech-rhythm characteristics of client-centered, Gestalt, and rational-emotive therapy interviews.

    PubMed

    Chen, C L

    1981-07-01

    The aim of this study was to discover whether client-centered, Gestalt, and rational-emotive psychotherapy interviews could be described and differentiated on the basis of quantitative measurement of their speech rhythms. These measures were taken from the sound portion of a film showing interviews by Carl Rogers, Frederick Perls, and Albert Ellis. The variables used were total session and percentage of speaking times, speaking turns, vocalizations, interruptions, inside and switching pauses, and speaking rates. The three types of interview had very distinctive patterns of speech-rhythm variables. These patterns suggested that Rogers's Client-centered therapy interview was patient dominated, that Ellis's rational-emotive therapy interview was therapist dominated, and that Perls's Gestalt therapy interview was neither therapist nor patient dominated.

  7. Abraham Pais Prize for History of Physics: Physics Textbooks Don't Always Tell the Truth

    NASA Astrophysics Data System (ADS)

    Franklin, Allan

    2016-03-01

    Anyone who studies the history of physics quickly realizes that the history of physics presented in physics textbooks is often inaccurate. This is not necessarily a bad thing. The purpose of textbooks is to help students learn physics. An inaccurate history may serve a pedagogical purpose. It may help to explain concepts more clearly than the actual history. I believe, however, that it is important for those of us who teach physics to know the accurate history. In this talk I will discuss two episodes from the history of modern physics, Millikan's experiments on the photoelectric effect and the Ellis-Wooster experiment on the energy spectrum in β decay. Everyone knows that Millikan's work established the photon theory of light. The problem is that what everyone knows is wrong. The Ellis-Wooster experiment, on the other hand, is rarely discussed in physics texts, but it should be. In this talk I will present a more accurate history of these experiments.

  8. Geology and coproduction potential of submarine-fan deposits along the Gulf Coast of east Texas and Louisiana

    SciTech Connect

    Jackson, M.L.W.; Light, M.P.R.; Ayers, W.B. Jr.

    1987-04-01

    Four reservoirs containing dispersed gas were examined for their coproduction potential. Reservoirs in Port Acres field (Texas) and Ellis field (Louisiana) produce from the Hackberry member of the Oligocene Frio formation, and two reservoirs in Esther field (Louisiana) produced from the lower Miocene Planulina zone. Log-pattern and lithofacies maps, together with stratigraphic position, suggest that the reservoirs are in ancient submarine-fan deposits. Dip-elongate, channel-fill sands are characteristic; reservoir sands pinch out along the strike. Growth faults, common in the submarine slope setting, form undip and downdip boundaries, producing combination traps. In Ellis field, coproduction accounts for 300 Mcf/D (8.5X10/sup 3/ m/sup 3//d) of gas. Port Acres field contains the largest remaining reserves, but other technical and economic factors limit coproduction potential there. Recent drilling has extended primary production and delayed coproduction in the Esther field.

  9. Study and modeling of the rheological properties of concentrated water-in-oil emulsions

    SciTech Connect

    Koroleva, M.Yu.; Yurtov, E.V.

    1994-07-01

    Study of the rheological curves of concentrated water-in-oil emulsions indicates that such systems behave like non-Newtonian pseudo-plastic liquids. A number of mathematical models for rheological curves: Chong, Frankel-Acrivos, Ostwald-Weil, Bingham, Stainer, Ferry, Haven, Ellis, and Meter models are considered. The regions of the model adequacy for rheological curves of emulsions with different contents of the dispersed phase are determined. It was shown that only the Ellis model adequately describes the complete rheological curves of concentrated water-in-oil emulsions of the studied composition. Therefore, this model can be applied to the prediction of the viscosity values for emulsions with various phase ratios.

  10. Bounding quantum-gravity-inspired decoherence using atom interferometry

    NASA Astrophysics Data System (ADS)

    Minář, Jiří; Sekatski, Pavel; Sangouard, Nicolas

    2016-12-01

    Hypothetical models have been proposed in which explicit collapse mechanisms prevent the superposition principle from holding at large scales. In particular, the model introduced by Ellis et al. [J. Ellis et al., Phys. Lett. B 221, 113 (1989), 10.1016/0370-2693(89)91482-2] suggests that quantum gravity might be responsible for the collapse of the wave function of massive objects in spatial superpositions. We consider here a recent experiment reporting on interferometry with atoms delocalized over half a meter for a time scale of 1 s [T. Kovachy et al., Nature (London) 528, 530 (2015), 10.1038/nature16155] and show that the corresponding data strongly bound quantum-gravity-induced decoherence and rule it out in the parameter regime considered originally.

  11. Facilitation of receptive and productive foreign vocabulary learning using the keyword method: the role of image quality.

    PubMed

    Beaton, Alan A; Gruneberg, Michael M; Hyde, Christopher; Shufflebottom, Alex; Sykes, Robert N

    2005-07-01

    Ellis and Beaton (1993a) reported that the keyword method of learning enhanced memory of foreign vocabulary items when receptive learning was measured. However, for productive learning, rote repetition was superior to the keyword method. The first two experiments reported here show that, in comparison with rote repetition, both receptive and productive learning can be enhanced by the keyword method, provided that the quality of the keyword images is adequate. In a third experiment using a subset of words from Ellis and Beaton (1993a), the finding they reported, that for productive learning rote repetition was superior to the keyword method, was reversed. The quality of keyword images will vary from study to study and any generalisation regarding the efficacy of the keyword method must take this into account.

  12. Wormhole shadows in rotating dust

    NASA Astrophysics Data System (ADS)

    Ohgami, Takayuki; Sakai, Nobuyuki

    2016-09-01

    As an extension of our previous work, which investigated the shadows of the Ellis wormhole surrounded by nonrotating dust, in this paper we study wormhole shadows in a rotating dust flow. First, we derive steady-state solutions of slowly rotating dust surrounding the wormhole by solving relativistic Euler equations. Solving null geodesic equations and radiation transfer equations, we investigate the images of the wormhole surrounded by dust for the above steady-state solutions. Because the Ellis wormhole spacetime possesses unstable circular orbits of photons, a bright ring appears in the image, just as in Schwarzschild spacetime. The bright ring looks distorted due to rotation. Aside from the bright ring, there appear weakly luminous complex patterns by the emission from the other side of the throat. These structure could be detected by high-resolution very-long-baseline-interferometry observations in the near future.

  13. Physics Textbooks Don't Always Tell the Truth

    NASA Astrophysics Data System (ADS)

    Franklin, Allan

    2016-04-01

    Anyone who studies the history of physics quickly realizes that the history presented in physics textbooks is often inaccurate. I will discuss three episodes from the history of modern physics: (1) Robert Millikan's experiments on the photoelectric effect, (2) the Michelson-Morley experiment, and (3) the Ellis-Wooster experiment on the energy spectrum in β decay. Everyone knows that Millikan's work established the photon theory of light and that the Michelson-Morley experiment was crucial in the genesis of Albert Einstein's special theory of relativity. The problem is that what everyone knows is wrong. Neither experiment played the role assigned to it by physics textbooks. The Ellis-Wooster experiment, on the other hand, is rarely discussed in physics texts, but it should be. It led to Wolfgang Pauli's suggestion of the neutrino. I will present a more accurate history of these three experiments than those given in physics texts.

  14. Anger and the ABC model underlying Rational-Emotive Behavior Therapy.

    PubMed

    Ziegler, Daniel J; Smith, Phillip N

    2004-06-01

    The ABC model underlying Ellis's Rational-Emotive Behavior Therapy predicts that people who think more irrationally should display greater trait anger than do people who think less irrationally. This study tested this prediction regarding the ABC model. 186 college students were administered the Survey of Personal Beliefs and the State-Trait Anger Expression Inventory-Second Edition to measure irrational thinking and trait anger, respectively. Students who scored higher on Overall Irrational Thinking and Low Frustration Tolerance scored significantly higher on Trait Anger than did those who scored lower on Overall Irrational Thinking and Low Frustration Tolerance. This indicates support for the ABC model, especially Ellis's construct of irrational beliefs which is central to the model.

  15. Effect of rational and irrational statements on intensity and 'inappropriateness' of emotional distress and irrational beliefs in psychotherapy patients.

    PubMed

    Cramer, D; Kupshik, G

    1993-09-01

    Ellis's rational-emotive theory postulates that since irrational statements augment emotional distress, replacing irrational with rational statements should lessen distress. This hypothesis was tested in the initial stages of psychotherapy by having 13 and 14 clinical out-patients respectively repeat for one minute either rational or irrational statements about their major presenting psychological problem. The distinction by Ellis & Harper (1975) that 'inappropriate' emotions differ qualitatively from 'appropriate' emotions was also examined. Although the experimental intervention had no effect on a post-test measure of irrational beliefs, patients repeating rational statements had significantly lower appropriate and inappropriate negative emotions at post-test, suggesting that inappropriate emotions do not differ qualitatively from appropriate emotions and that making rational statements may lower emotional distress in patients. Patients reiterating irrational statements showed no change in emotions, implying that these kinds of irrational cognitions may have already been present.

  16. A test of the ABC model underlying rational emotive behavior therapy.

    PubMed

    Ziegler, Daniel J; Leslie, Yvonne M

    2003-02-01

    The ABC model underlying Ellis's Rational Emotive Behavior Therapy predicts that people who think more irrationally should respond to daily stressors or hassles differently than do people who think less irrationally. This study tested this aspect of the ABC model. 192 college students were administered the Survey of Personal Beliefs and the Hassles Scale to measure irrational thinking and daily hassles, respectively. Students who scored higher on overall irrational thinking reported a significantly higher frequency of hassles than did those who scored lower on overall irrational thinking, while students who scored higher on awfulizing and low frustration tolerance reported a significantly greater intensity of hassles than did those who scored lower on awfulizing and low frustration tolerance. This indicates support for the ABC model, especially Ellis's construct of irrational beliefs central to this model.

  17. Mass extinctions and supernova explosions.

    PubMed Central

    Crutzen, P J; Brühl, C

    1996-01-01

    In a recent contribution to this journal Ellis and Schramm [Ellis, J. & Schramm, D. N. (1995) Proc. Natl. Acad. Sci. USA 92, 235-238] claim that supernova explosions can cause massive biological extinctions as a result of strongly enhanced stratospheric NOx (NO + NO2) production by accompanying galactic cosmic rays. They suggested that these NOx productions which would last over several centuries and occur once every few hundred million years would result in ozone depletions of about 95%, leading to vastly increased levels of biologically damaging solar ultraviolet radiation. Our detailed model calculations show, however, substantially smaller ozone depletions ranging from at most 60% at high latitudes to below 20% at the equator. PMID:11607631

  18. Parallel Large-scale Semidefinite Programming for Strong Electron Correlation: Using Correlation and Entanglement in the Design of Efficient Energy-Transfer Mechanisms

    DTIC Science & Technology

    2014-09-24

    RETURN YOUR FORM TO THE ABOVE ADDRESS. University of Chicago 5801 South Ellis Avenue Chicago , IL 60637 -5418 1 ABSTRACT Final Report: Parallel Large-scale...supported 2012: Promotion of PI to Full Professor at The University of Chicago 2014: Quantrell Award to PI from The University of Chicago ...sponsored research. 9 Final Report 2014 David A. Mazziotti The University of Chicago Statement of the Problem Solved Challenges addressed by the

  19. Targeting Microvascular Pericytes in Angiogenic Vessels of Prostate Cancer

    DTIC Science & Technology

    2005-04-01

    tumor fragments in C57BL/6 mouse ( Maglione et al., 2004) (Namba et al., 2004) (Ozerdem and Stallcup, 2003). Four, male TRAMP mice (24 week old...antibodies to inhibit neovascularization. REFERENCES Abramsson A, Berlin 0, Papayan H, Paulin D, Shani M , Betsholtz C. 2002. Analysis of mural cell... Maglione JE, McGoldrick ET, Young LJ, Namba R, Gregg JP, Liu L, Moghanaki D, Ellies LG, Borowsky AD, Cardiff RD, MacLeod CL. 2004. Polyomavirus

  20. JPRS Report, Science & Technology Europe

    DTIC Science & Technology

    2007-11-02

    materials research under microgravity conditions, such as ELLI, AMF of MHF ( Mirror Heating Facility) the Zone Melt- ing Furnace is a resistance-heated...pendently controlled zones. This is another advantage of a resistance-heated furnace over a mirror heating facil- ity. When the experiment requires a...zone, the subdivision into several heating zones will be preferable to the single light focus of a mirror heating facility. In 1987/88, following

  1. Early Treatment in Shock

    DTIC Science & Technology

    2011-06-01

    jasminoides Ellis). It is com- monly sold in the United States as an herbal supplement . In terms of crocetin’s fundamental mode of action in host... supplementation 15 can be beneficial in ameliorating the tissue damage produced following experimental 16 hemorrhagic shock. In the present investigation...experimental rat model of hemorrhagic shock. Our studies were designed to test two 19 hypotheses. First, L-arginine supplementation during resuscitation will

  2. Early Treatment in Shock. Addendum

    DTIC Science & Technology

    2012-08-01

    from gardenia root (Gardenia jasminoides Ellis). It is com- monly sold in the United States as an herbal supplement . In terms of crocetin’s fundamental...but results of 14 the available literature collectively allow the conclusion that L-arginine supplementation 15 can be beneficial in ameliorating the...were designed to test two 19 hypotheses. First, L-arginine supplementation during resuscitation will improve survival 20 from lethal hemorrhagic

  3. Programming Productivity Enhancement by the use of Application Generators by the Use of Application Generators.

    DTIC Science & Technology

    2014-09-26

    RD-Ai58 598 PROGRAMMING PRODUCTIVITY ENHANCEMIENT BY THE USE-O F APPLICATION GENERATORS.. (U) UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF...for Grant No. AFOSR-82-0232 I Programming Productivity Enhancement by the Use of Application Generators June 1, 1982 - May 31, 1985 by Ellis Horowitz...area of Application Generators. Systems such as RAMS, NOMAD and FOCUS had all proven * to be versatile at improving programmer productivity in the

  4. Echoes Across the Pond: Understanding EU-US Defense Industrial Relationships

    DTIC Science & Technology

    2008-05-20

    Kaldor (1981), and is discussed more formally in Franck (1992). Mary Kaldor, The Baroque Arsenal, New York: Hill and Wang, 1981. Raymond E. Franck...in its current form) is more a hedge against KC-135 airframe aging than an embodiment of operationally significant, new technology. Furthermore...rpfkbpp=C=mr_if`=mlif`v= = - 12 - k^s^i=mlpqdo^ar^qb=p`elli= onset of information- age economies, globalization of economic activity, and the Counter RMA

  5. The New Phase of Constitutional Struggle in Venezuela

    DTIC Science & Technology

    2016-07-21

    3 The New Phase of “Constitutional” Struggle in Venezuela R. Evan Ellis1 The magnitude of the victory by the Venezuelan opposition in the December 6...politician Henry Ramos Allup to preside over the Assembly. Indeed, the first acts of Ramos and the new assembly included the removal of the...unconstitutional, or otherwise invalidate laws passed by the new National Assembly. While the appointment of the new judges by the Chavista-dominated

  6. Space Cabin Landing Impact Vector Effects on Human Physiology

    DTIC Science & Technology

    1964-12-01

    December 1964 Journal Article 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Space Cabin Landing Impact Vector Effects on Human Physiology 5b. GRANT NUMBER 5c...Landing Impact Vector Effects on Human Physiology COLONEL JOHN P. STAPP, USAF, MC, and MAJOR ELLIS R. TAYLOR, USAF, MC ABSTRACT stimulation of carotid...LANDING IMPACT VECTOR EFFECTS ON HUMAN PHYSIOLOGY -STAPP AND TAYLOR tion and pallor occurred on exposure to more than 30 facing seated and bottom

  7. Voluntary Dehydration and Electrolyte Losses during Prolonged Exercise in the Heat,

    DTIC Science & Technology

    1984-01-01

    further interest are the effects of many factors on sweat electrolyte composition . Robinson and Robinson have identified seven factors which alter the...1962. The correlation of structure and function in the human eccrine sweat gland. In: W. Montagna, R. A. Ellis and A. I F. Silver (Ed.) Advances of...Corp., pp. 2:7. 21. Mickelson, 0, and A. Keys. 1943. The composition of sweat , with special reference to the vitamins. J Biol Chem 149:479-490. 22

  8. Impact of Export Control and Technology Transfer Regimes: International Perspectives

    DTIC Science & Technology

    2012-01-07

    Impact of Export Control and Technology Transfer Regimes: International Perspectives 7 January 2012 by BGen (Ret.) Raymond E. Franck ...contact: NPS Acquisition Research Program Attn: James B. Greene, RADM, USN, (Ret.) Acquisition Chair Graduate School of Business and Public Policy...k^s^i=mlpqdo^ar^qb=p`elli= About the Authors Raymond (Chip) Franck , PhD, Senior Lecturer, Graduate School of Business & Public Policy, Naval

  9. Information Operations and the Global War on Terror: The Joint Force Commander’s Fight for Hearts and Minds in the 21st Century

    DTIC Science & Technology

    2006-05-31

    IO or have not been involved with exercises that demonstrate its effectiveness.xlii In the recent Kosovo campaign, Vice Admiral James Ellis noted...shown by Tony Karon , “Al-Qaeda Today: Not Winning, But Not Losing, Either”, Time Online, <www.Time.com/time/world/article/0,8599,4845900,00.html [12... Karon , Tony “Al-Qaeda Today: Not

  10. Air Force Follow-On Review. Protecting The Force: Lessons From Fort Hood

    DTIC Science & Technology

    2010-01-01

    Command and Direct Reporting Unit Team Leads AETC Col Bruce Lovely PACAF Col James Strickler NGB Col Ronald Gionta AFSOC Col Brady Reitz USAFE Col...Carla Gammon AMC Col Frank Jones AFSPC Col Gerald Curry AFGSC Col Peter Ellis ACC Col Robert LaBrutta AFRC Col Joseph Vivori USAFE Col Gus Green...Lt Gen Janet Wolfenbarger AFSOC Maj Gen Kurt Cichowski AFOTEC Maj Gen Stephen Sargeant AETC Maj Gen James Whitmore USAFE Maj Gen William Chambers

  11. Bubble Dynamics in Polymer Solutions Undergoing Shear.

    DTIC Science & Technology

    1985-04-01

    20D 23 REYNOLDS NUMBER *10’ FIGURE 1-1. The effect of dilute polymer solutes on hydraulic cavitation inception (Ellis &Ting, 1974). (a) ( b ) FIGURE 1-2...Comparison of cavitation appearance in (a) water and ( b ) dilute aqueous Polyox solution (Ting, 1978). 3 cavitation is significantly altered (Figure...research fall into two distinct (but related) areas. These are (a) Newtonian (or viscous) flow-induced cavitation bubble deformation and ( b ) non

  12. Assessment of the Human Factors Characteristics of the AH-64D Apache Longbow Crew Stations

    DTIC Science & Technology

    2002-03-01

    other Army aviation systems; and • Validation of AH-64D system performance. To address validation of AH-64D system performance, the following operational...military, civil, and commercial aviation communities for pilot workload estimation (Roscoe & Ellis, 1990). It requires pilots to rate the level of...that could be applied to other Army aviation programs. During the survey and interviews, pilots were asked to identify any problems they have

  13. Man-Portability Considerations for an Improved Medium Antiarmor Assault Weapon (IMAAW)

    DTIC Science & Technology

    1981-03-01

    0 Technical Memorandum 6-81 MAN-PORTABILITY CONSIDERATIONS IPOR ANI IMPROVED MEDIUM ANTIARMOR ASSAULT WEAPON (IMAAw) Dominick J. Giordano Samuel T...ASSAULT WEAPON (IMAAW) Dominick J. Giordano Samuel T. Brainerd -. March 1981 APPROVED: US Army Human Ft1gineoving Lahor;it’ry US ARMY HUMAN...Jones, R.D., Randall, R.B., Ellis, P.H., & Bruno , R.S. ŕ Human factors evaluation of two proposed arut infantry/marine fragmentation protective

  14. Photoluminescent Response of Palladium-Cadmium Sulfide and Palladium-Graded Cadmium Sulfoselenide Schottky Diodes to Molecular Hydrogen.

    DTIC Science & Technology

    2014-09-26

    assistance - and helpful discussions. 8 Re ferences 1. Hollingsworth, R. E.; Sites, J. R. 3. Appi . Phys. 1982, 53, 5357 and references therein. 2. Hobson...W. S.; Ellis, A. B. J. Ap. Phys. 1983, 54, 5956 and references therein. 3. Mettler, K. Appi . Phys. 1977, 12, 75. 4. Stephens, R. B. Phys. Rev.. B...1984, 29, 3283. 5. Steele, M. C.; Maclver, B. A. Appi . Phys. Lett. 1976, 28, 687. 6. Yamamoto, N.; Tonomura, S.; Matsuoka-, T.; Tsubomura, H. Surf. Sci

  15. Spontaneous Electrical Activity of Dionaea muscipula.

    PubMed

    Balotin, N M; Dipalma, J R

    1962-12-21

    Instillation of four to six drops of 3-percent saline in the leaf trap of Dionaea muscipula Ellis causes the appearance of a series of spontaneous action potentials. Mechanical stimulation of the sensitive leaf hair elicits only a single response. Immersion in 3-percent, but not in 1-percent, saline effects a loss of weight in Dionaea but not in the leaves of gardenia or geranium.

  16. A muscle contracting substance from a plant's closing Fly-Trap.

    PubMed

    Lea, H W

    1976-01-01

    A muscle contracting substance (MCS) occurs in crushed, incubated traps of the insectivorous plant, the Venus Fly-Trap (Dionaea muscipula Ellis). This MCS is provisionally identified as lysophosphatidic acid. More MCS is produced from traps which have been touched than from untouched traps, which may be due to activation of phospholipase D. This enzyme hydrolyses phospholipids of membranes, and could alter the physiological properties of membranes.

  17. Touch receptor of venous flytrap, Dionaea muscipula.

    PubMed

    DiPalma, J R; McMichael, R; DiPalma, M

    1966-04-22

    Numerous small structures (stellate trichomnes) protrude from the surface of marginal hairs, outer leaf surface, and stem of Dionaea muscipula Ellis. None are present inside the trap. Mechanical stimulation causes small action potentials and eventual closure of the trap, independently of the sensitive trigger hairs. Subthreshold stimulation of these structures appears to sensitize the trigger hairs and facilitate closure of the trap. This suiggests that these structures act as touch sensors or receptors.

  18. Proximity Displays for Access Control

    DTIC Science & Technology

    2012-09-01

    conference on Human factors in computing systems, 2011. 8.2 [35] Willis D. Ellis. A Source Book of Gestalt Psychology . Psychology Press, 1999. 3.3...Engineering agrees, listing cybersecurity as one of their Grand Challenges and specifically noting that understanding the psychology of computer users is...should support users in these behaviors. 2.5 Behavioral models Research from cognitive psychology , behavioral economics and the warning sciences pro- vide

  19. Applicability of Visual Analytics to Defence and Security Operations

    DTIC Science & Technology

    2011-06-01

    IEEE. Koffka, K. (1935), Principles of Gestalt Psychology , Harcourt Brace, New York. Kohlhammer, J. and Keim, D. (2007), Visual Analytics in...Forms, in A Source Book of Gestalt Psychology , W. D. Ellis (ed), p. 71-88, Harcourt Brace. Willems, N., Watering, H.v.d. and Wijk, J.J.v. (2009...The Gestalt laws of organization describe how people perceive visual components as organized patterns or wholes, instead of many different parts

  20. Operational Design: Distilling Clarity from Complexity for Decisive Action

    DTIC Science & Technology

    2012-08-01

    Theory.” An address before the Kant Society, Berlin, 7 December 1924, Erlangen, Germany. In Source Book of Gestalt Psychology , trans. Willis D. Ellis...using Union naval forces along the James River. This tactical setback created a major psychological disruption for McClellan. As McClellan’s lead...assistance from specialists. Understanding Gestalt Theory Another critical aspect of understanding frames of reference is Gestalt theory. Christian von

  1. Wave-Powered Unmanned Surface Vehicle as a Station-Keeping Gateway Node for Undersea Distributed Networks

    DTIC Science & Technology

    2012-09-01

    Bay Aquarium Research Institute METOC Meteorology and Oceanography NDBC National Data Buoy Center NOAA Naval Oceanographic and Atmospheric...significant weather events or currents. The tests were done in Monterey Bay, near ocean observation buoy M1 maintained by the Monterey Bay Aquarium Research...5. Tim Richardson GTRI Atlanta, Georgia 6. RADM Jerry Ellis, USN(r), Chair Undersea Warfare Naval Postgraduate School Monterey, California 7. RDML

  2. JPRS Report East Europe.

    DTIC Science & Technology

    1990-06-01

    34 37 There ought to be a even arrested in the GDR (Max Fechner , Max Fank, special research program for this chapter as well as for Willy Jesse, Paul...Anton Ackermann, Franz SED Central Committee or of the Central Party Control Dahlem, Max Fechner , Erich Gniffke, August Karsten, Commission (ZPKK...organized in the fall of 1948, Paul Merker, and Elli Schmidt-of them Fechner and respectively. The Central Committee passed another Merker were arrested and

  3. An Empirical Study of a Vulnerability Metric Aggregation Method

    DTIC Science & Technology

    2011-07-01

    Privacy, pages 254–265, 2002. [15] Laura P. Swiler, Cynthia Phillips, David Ellis, and Stefan Chakerian. Computer-attack graph generation tool. In DARPA...all D atabase Server U ser W orkstations In ternet D M Z Internal U ser Internal F irew all 0: attackerLocated(internet) 1: execCode(dbServer,root...14th USENIX Security Symposium, 2005. [13] Cynthia Phillips and Laura Painton Swiler. A graph-based system for network-vulnerability analysis. In NSPW

  4. An Analysis of the Effect of Knowledge Management on the Execution of Simplified Acquisition Procedures

    DTIC Science & Technology

    2012-12-27

    ar^qb=p`elli= processes” (p. 1). A person with access to a relevant stock of knowledge has a competitive advantage; and, by managing the quality ...Connection website: https://acc.dau.mil/CommunityBrowser.aspx?id=340759&view=w Department of Defense Office of Inspector General. (2012). ISO 9001 ... Management Journal, 24–43. Nissen, M. E., & Rendon, R. (in press). Measuring acquisition workforce quality through dynamic knowledge and performance

  5. Effects of Different Heavy-Resistance Exercise Protocols on Plasma Beta-Endorphin Concentrations

    DTIC Science & Technology

    1993-01-01

    exercise increases in muscular hypertrophy (27). Thus each exer- protocols used previously. Each subject gave informed cise series provides for...ANTE. P. D., AND M. E. HOUSTON. Effects of concentric and DUDLEY. C. M. MARESH, L. MARCHIrELLI, C. CRUTHIRDS, T. eccentric exercise on protein catabolism...DTIC Effects of different heavy-resistance exercise ELECTE protocols on plasma #-endorphin concentrations MAR 3 0 1993 C WILLIAM J. KRAEMER, JOSEPH E

  6. Coosa River Storage Annex, Talladega, Alabama. Environmental Investigation Report. Volume 1 of 2

    DTIC Science & Technology

    1992-09-01

    support populations of herpetofauna ( reptiles and amphibians) that may serve as vector organisms, nor are they known to support populations of crayfish...liver and spleen hypertrophy, and induce degeneration of the germinal epithelial lining of the seminiferous tubules resulting in decreased spermatogenesis ... spermatogenesis , testicular atrophy, and ovarian dysfunction [Lee et al., 1985; Ellis et al., 1979; Lee et al., 1978 cited in USATHAMA, 1991a]. The

  7. Class VIIIA Materiel: What Problems Were Encountered Transiting OIF Air Transshipment Nodes

    DTIC Science & Technology

    2007-03-01

    LMI (Col ret). “Medical Logistics and Homeland Security,” briefing. Leedy , Paul D. and Jeanne Ellis Ormrod . Practical Research: Planning and...measures a characteristic that cannot be directly observed” ( Leedy , 2005). Internal validity allows the researcher to show causal relationships within...repeatedly, as long as the case does not change ( Leedy , 2005). 3. Prepare to collect the data When accomplishing case studies, it is normal for the

  8. Metrology for Information Technology

    DTIC Science & Technology

    1997-05-01

    unit. As Ellis states, "If we must speak of counting as a measuring procedure, it is unique among all measuring procedures." Carnap claims that...actual state of the world. However, probability is understood in another sense: as "degree of confirmation." Carnap ° claims that the term...Rudolf Carnap , Philosophical Foundations of Physics. Basic Books: New York. 1996. 6. Karel Berka, Measurement: Its Concepts, Theories and Problems. D

  9. Anisotropic Bianchi types VIII and IX locally rotationally symmetric cosmologies

    SciTech Connect

    Assad, M.J.D.; Soares, I.D.

    1983-10-15

    We present a class of exact cosmological solutions of Einstein-Maxwell equations, which are anisotropic and spatially homogeneous of Bianchi types VIII and IX, and class IIIb in the Stewart-Ellis classification of locally rotationally symmetric models. If we take the electromagnetic field equal to zero, a class of Bianchi types VIII/IX spatially homogeneous anisotropic cosmological solutions with perfect fluid is obtained.

  10. A Research Program in Computer Technology

    DTIC Science & Technology

    1975-09-01

    Moore Vernon W. Reynolds Dale S. Russell Support Staff: Ralph W. Caldwell Wanda N. Canillas Dale M. Chase Oralio E. Carza Delia A. Heilig Kyle P. Lemmons...Raymond L Mason Danny Cohen Marion McKinley Jr. Martin,’. Cohen William H. Moore E. Randolph Cole Vernon W. Reynolds Stephen D. Crocker Dale S. Russell...Ronald L. Currier Thomas 0. Ellis Support Staff: Robert Blechen Lawrence M. Fagar, Ralph W. Caldwell Louis Gallenson Wanda N. Canillas Joel Coldbe’rg

  11. Capabilities and Competencies in Humanitarian Operations

    DTIC Science & Technology

    2012-06-18

    rpfkbpp=C=mr_if`=mlif`v= = - 2 - k^s^i=mlpqdo^ar^qb=p`elli= (USCG) cutter Forward was diverted from its patrolling duties in the Caribbean to Port ...the Destruction of the Port at Port -au-Prince, Haiti, Captured by the U.S. Coast Guard Cutter Forward in the Aftermath of the January 12, 2010...the similarities and differences between the two (Jahre, Jensen, & Listou, 2009; Kovács & Tatham, 2009; Pettit & Beresford, 2005). Specifically

  12. Sound Evidence: The Missing Piece of the Jigsaw in Formulaic Language Research

    ERIC Educational Resources Information Center

    Lin, Phoebe M. S.

    2012-01-01

    With the ever increasing number of studies on formulaic language, we are beginning to learn more about the processing of formulaic language (e.g. Ellis et al. 2008; Siyanova et al. 2011), its use in speech (e.g. Aijmer 1996; Wood 2012) and writing (e.g. Hyland 2008a, 2008b) and its application in natural language processing (e.g. Tschichold 2000).…

  13. The U.S. Navy in Operation Overlord Under the Command of Rear Admiral Alan G. Kirk

    DTIC Science & Technology

    1994-05-19

    doubled soon after the arrival of Eisenhower and Montgomery, Bradely assigned two veteran infantry divisions to lead the assault. Bradley planned to send a...213; and Keegan, Second World War, pp. 375-77. 179 14. Ellis, Victory in the-West, p. 17; 15. Alfred Chandler, ed., The Papers of Dwight David ...Kirk Mss, NHC. 3. David Brown, "Operation Neptune, The Normandy Invasion: 6 dune to 3 July 1944," July 1993, Naval Historical Branch, Ministry of

  14. Galaxies at High Redshift

    NASA Astrophysics Data System (ADS)

    Pérez-Fournon, I.; Balcells, M.; Moreno-Insertis, F.; Sánchez, F.

    2010-08-01

    Participants; Group photograph; Preface; Acknowledgements; 1. Galaxy formation and evolution: recent progress R. Ellis; 2. Galaxies at high redshift M. Dickinson; 3. High-redshift galaxies: the far-infrared and sub-millimeter view A. Franceschini; 4. Quasar absorption lines J. Bechtold; 5. Stellar population synthesis models at low and high redshift G. Bruzual A.; 6. Elliptical galaxies K. C. Freeman; 7. Disk galaxies K. C. Freeman; 8. Dark matter in disk galaxies K. C. Freeman.

  15. Managing the Service Supply Chain in the Department of Defense: Opportunities and Challenges

    DTIC Science & Technology

    2006-12-30

    NPS Acquisition Research Program Attn: James B. Greene , RADM, USN, (Ret) Acquisition Chair Graduate School of Business and Public Policy Naval...mlif`v - iii - k^s^i=mlpqdo^ar^qb=p`elli= Acknowledgements The authors are greatly thankful to RADM Jim Greene , USN (Ret), the NPS Acquisition...comprehensive collections of readings such as Bowen, Chase & Cummings (1990), Brown, Gummesson, Edvardsson & Gustavsson (1991), and Lovelock (1992

  16. Africa’s Information Revolution: Implications for Crime, Policing, and Citizen Security

    DTIC Science & Technology

    2013-11-01

    entrepreneurs, investors, and technologists. Nokia partnered with CcHub in 2012 to launch the Growth Academy, an incubator for mobile technology...Technology & Innovation Trajectory (World Association for Sustainable Development (WASD), February 2010). 56 Elly Okutoyi, “ Nokia Partners with Nigeria’s...CcHub to Launch a Mobile Software Accelerator Academy,” The Next Web (TNW), May 28, 2012, available at <http://thenextweb.com/africa/2012/05/28/ nokia

  17. Infrared Spectroscopic Imaging for Prostate Pathology Practice

    DTIC Science & Technology

    2008-03-01

    J Biomed Opt 4: 14 –21 13. Kidder LH, Kalasinsky VF , Luke JL, Levin IW, Lewis EN (1997) Nat Medicine 3:235–237 14 . Ellis DI, Goodacre R (2006) Analyst...TO THE ABOVE ADDRESS. 1. REPORT DATE (DD-MM-YYYY) 14 -03-2008 2. REPORT TYPE Annual 3. DATES COVERED (From - To) 15 FEB 2007 - 14 FEB 2008 4...DISTRIBUTION / AVAILABILITY STATEMENT Approved for public release; distribution unlimited 13. SUPPLEMENTARY NOTES 14 . ABSTRACT The report summarizes

  18. A Department of Homeland Security Reserves (DHS-R): Simultaneously Protecting the Homeland While Alleviating the Increased DoD Role in Homeland Defense and Security

    DTIC Science & Technology

    2007-12-01

    tribuneedition.html accessed on May 12, 2007. 21 Personal Interview with Ellis Stanley, General Manager- Emergency Preparedness Department, City ...California Office of Homeland Security, the Los Angeles City and County office of Emergency Preparedness, the FEMA/USNORTHCOM liaison, Citizen Corps...Preparedness for LA City , who guided my research. I also met with Mr. Bill Carwile of FEMA and Mr. Charles Adams of DHS, whose homeland security

  19. The Impact of a Common MDM2 SNP on the Sensitivity of Breast Cancer to Treatment

    DTIC Science & Technology

    2011-06-01

    Univariate and multivariate survival analysis was carried out using Cox’s proportional hazard regression model. Multivariate analysis was used to...found to have predictive value in the ER+ subset may be explained by higher biologic activity of MDM2 in estrogen responsive tumors. Numerous...Garcia MA, Green AR, Reis-Filho JS, Ellis IO: The biological , clinical and prognostic implications of p53 transcriptional pathways in breast cancers

  20. An Assessment of Fecal Coliform Bacteria in Cruise Ship Wastewater Discharge

    DTIC Science & Technology

    2003-09-01

    An Assessment of Fecal Coliform Bacteria in Cruise Ship Wastewater Discharge Charles D. McGee Orange County Sanitation District* 10844 Ellis...Alaska Cruise Ship Initiative in 1999. This initiative required investigation, understanding and oversight of discharges from large cruise ships...into the waters of Alaska. As part of the overall assessment of impacts from cruise ship waste discharges on the environment, a Science Advisory