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Sample records for montastrea annularis ellis

  1. Reduced growth rate of Montastrea annularis following the 1987 1988 coral-bleaching event

    NASA Astrophysics Data System (ADS)

    Goreau, T. J.; Macfarlane, A. H.

    1990-04-01

    Montastrea annularis, the major Caribbean reef building coral, was severely affected by the unprecedented 1987 1988 bleaching event. Most colonies on the fore reef were affected but few were bleached in the back reef. Skeletal growth rates of M. annularis populations were measured non-destructively in the field at Discovery Bay, Jamaica, from the peak of bleaching in Nov. 1987 until recovery was almost complete, in May 1988. Unbleached corals grew at normal rates. Partially bleached corals survived but skeletal growth ceased through this period.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  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. 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.

  9. 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.

  10. Ellis Island: The Immigrants' Experience.

    ERIC Educational Resources Information Center

    Koman, Rita G.

    1999-01-01

    Presents a lesson where the students participate in a simulation of the process at Ellis Island in order to understand the feelings people underwent during immigration. Explains that the students choose and research a character, either fictional or a relative, and act out the experience of entering Ellis Island. (CMK)

  11. Ellis-van Creveld syndrome

    MedlinePlus

    Chondroectodermal dysplasia; EVC ... 1 of 2 Ellis-van Creveld syndrome genes ( EVC and EVC2 ). These genes are positioned next to ... performed for mutations in 1 of the 2 EVC genes Skeletal x-ray Ultrasound Urinalysis

  12. Unilateral purpura annularis telangiectodes of majocchi in an elderly male: an atypical presentation.

    PubMed

    Wang, Apphia; Shuja, Fareesa; Chan, Audrey; Wasko, Carina

    2013-08-15

    Purpura annularis telangiectodes (PAT), also known as Majocchi purpura, is a rare form of pigmented purpuric dermatosis characterized by non-palpable red-brown, occasionally pruritic patches which progress to hyperpigmented halos. Purpura annularis telangiectodes usually presents in female adolescents as benign symmetric lesions with a predilection for the lower extremities. We present an atypical case of unilateral PAT in an elderly male. To our knowledge, our patient at 85-years-old is the oldest PAT and first unilateral purpura annularis telangiectodes case described in the literature.

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. [Ellis van Creveld. Case report].

    PubMed

    Cruz-Perea, M; Luna, D; Ramírez-Cheyne, J; Saldarriaga Gil, W; Isaza, C

    2014-10-01

    Ellis-van Creveld (EVC) (OMIM # 225500) syndrome is a rare skeletal dysplasia disorder transmitted by autosomal recessive inheritance. The diagnosis is made based on phenotypic characteristics such as chondrodysplasia, heart defects and polydactyly. The prognosis depends mainly on the severity of the disease, diagnosis and comprehensive management of the condition. To describe a patient diagnosed with EVC syndrome. Newborn diagnosed with EVC syndrome who presented dysmorphic facies, shortened long bones, rhizomelic shortening, small hands, brachydactyly, single transverse palmar crease, postaxial polydactyly in the upper limbs, bilateral preaxial polysyndactyly in lower limbs and hypoplastic nails, complex heart defects and narrow thorax. The evolution was unfavorable; the patient died 8 weeks after birth from complications due to heart defects. EVC syndrome is rare and unknown; therefore, it is important to spread its characteristics within the pediatric community, emphasizing that it affects multiple organ systems and requires a multidisciplinary approach to treat individually each patient, to provide genetic and reproductive counseling to couples and to give information regarding child development expectations.

  18. Fine structure of the dorsal lingual epithelium in Tarentola annularis and Crocodylus niloticus.

    PubMed

    El-Bakry, A M; Hamdi, H

    2016-01-01

    The present study examined the morphological features, histological and histochemical aspect of the tongue of two reptilian species, Tarentola annularis (family: Gekkonidae) and Crocodylus niloticus (family: Crocodylidea), with different habitats, feeding patterns and behaviours, by light and scanning electron microscope. It was observed, that the bifurcation of the tongue was more visible in Tarentola annularis. Conical and filamentous papillae were observed on the lingual body of Tarentola annularis, while in Crocodylus niloticus both mechanical filiform and gustatory papillae appeared. The lingual mucosa in Tarentola annularis is covered by stratified squamous epithelium and keratinised but in Crocodylus niloticus it is highly folded and more heavily keratinised in the folded region and have a localised thickenings structure resembling taste buds. Mucous glands appeared in Tarentola annularis and compound tubular glands in Crocodylus niloticus. At scanning electron microscopy, abundant microridges and microvilli in both species were exhibited on papillae surface facilitated feeding habits. Histochemically, the tongue of two species is strongly positive for carbohydrate stain but with variable degree with others stains. In conclusion, there is a marked correlation between the structure of the tongue of the present reptilian species, habitats and feeding mechanism of the two species.

  19. Ellis-Van Creveld syndrome

    PubMed Central

    Baujat, Geneviève; Le Merrer, Martine

    2007-01-01

    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. PMID:17547743

  20. 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.

  1. 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

  2. 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.

  3. Hurricane-Driven Patterns of Clonality in an Ecosystem Engineer: The Caribbean Coral Montastraea annularis

    PubMed Central

    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. PMID:23308185

  4. 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)

  5. 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)

  6. 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)

  7. 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..

  8. Vectorial capacity and genetic diversity of Anopheles annularis (Diptera: Culicidae) mosquitoes in Odisha, India from 2009 to 2011.

    PubMed

    Das, Biswadeep; Patra, Aparna P; Das, Mumani; Mahapatra, Namita; Tripathy, Harekrushna; Kar, Santanu K; Hazra, Rupenangshu K

    2014-09-01

    Anopheles annularis is one of the major vectors of malaria in Odisha, India. The present study was undertaken to determine the vectorial capacity and assess the genetic diversity of An. annularis collected from different endemic regions of Odisha. Mosquitoes were collected from thirteen endemic districts using standard entomological collection methods from 2009 to 2011. Sibling species of An. annularis were identified by PCR-RFLP and sequencing of D3 region of 28S ribosomal DNA (rDNA) region. Plasmodium falciparum (Pf) sporozoite rate and human blood fed percentage (HBF) were estimated by multiplex PCR using Pf and human specific primers. Genetic diversity of An. annularis was estimated by ISSR markers. Out of 1647 An. annularis collected, 1353 (82.15%) were collected by mechanical aspirators and 294 (17.85%) by light trap. 49 (2.97%) were positive for human blood and 18 (1.09%) were positive for Pf sporozoite. PCR-RFLP and sequencing analyses detected only An annularis A in the study areas. Overall genetic differentiation among An. annularis populations was moderate (FST=0.048) and showed significant correlation between genetic distance and geographic distance (r=0.882; P<0.05). Angul population proved to be genetically unique and was highly divergent FST>0.110) from other populations, suggesting low gene flow between them. The study indicated that only An. annularis A was found in Odisha with potential vectorial capacity that can play a major role in malaria transmission. ISSR markers proved to be useful molecular tools to evaluate genetic variability in An. annularis populations. Copyright © 2014 Elsevier B.V. All rights reserved.

  9. 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.

  10. 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

  11. Albert Ellis's Theoretical Ark: Reactions of a Reader.

    ERIC Educational Resources Information Center

    Ginter, Earl J.

    1997-01-01

    Provides a brief reaction to Albert Ellis's "Postmodern Ethics for Active-Directive Counseling and Psychotherapy," which appears in this issue. Offers a condensed review of what has led up to Ellis's article. Pays special attention to the phrase "and/also" in relation to its implication for theory building and practice. (RJM)

  12. 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.

  13. 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…

  14. 33 CFR 147.1104 - Platform ELLEN & ELLY safety zone.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Platform ELLEN & ELLY safety zone... (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES SAFETY ZONES § 147.1104 Platform ELLEN & ELLY safety zone. (a... structures are approximately 120 meters apart. The position of the center of each structure is: Platform...

  15. 33 CFR 147.1104 - Platform ELLEN & ELLY safety zone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Platform ELLEN & ELLY safety zone... (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES SAFETY ZONES § 147.1104 Platform ELLEN & ELLY safety zone. (a... structures are approximately 120 meters apart. The position of the center of each structure is: Platform...

  16. 33 CFR 147.1104 - Platform ELLEN & ELLY safety zone.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Platform ELLEN & ELLY safety zone... (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES SAFETY ZONES § 147.1104 Platform ELLEN & ELLY safety zone. (a... structures are approximately 120 meters apart. The position of the center of each structure is: Platform...

  17. 33 CFR 147.1104 - Platform ELLEN & ELLY safety zone.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Platform ELLEN & ELLY safety zone... (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES SAFETY ZONES § 147.1104 Platform ELLEN & ELLY safety zone. (a... structures are approximately 120 meters apart. The position of the center of each structure is: Platform...

  18. 33 CFR 147.1104 - Platform ELLEN & ELLY safety zone.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Platform ELLEN & ELLY safety zone... (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES SAFETY ZONES § 147.1104 Platform ELLEN & ELLY safety zone. (a... structures are approximately 120 meters apart. The position of the center of each structure is: Platform...

  19. 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.

  20. 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

  1. 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.

  2. 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.

  3. Biological responses of the coral Montastraea annularis to the removal of filamentous turf algae.

    PubMed

    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.

  4. 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

  5. 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.

  6. Sibling Species in Montastraea annularis, Coral Bleaching, and the Coral Climate Record.

    PubMed

    Knowlton, N; Weil, E; Weigt, L A; Guzmán, 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 waters. 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. Isolation of Japanese encephalitis virus from Anopheles annularis and Anopheles vagus in Lombok, Indonesia.

    PubMed

    Olson, J G; Ksiazek, T G; Lee, V H; Tan, R; Shope, R E

    1985-01-01

    Three strains of Japanese encephalitis (JE) virus were recorded from mosquitoes collected in Lombok, Indonesia, during March 1979, from pools of Anopheles vagus, An. annularis and Culex tritaeniorhynchus respectively. This is believed to be the first report of isolation of JE virus from An. vagus. The frequencies of JE viral infection in zoophilic Anopheles species were higher than in Cx tritaeniorhynchus, the principle vector of JE virus in Asia. The low frequency of infection in Cx tritaeniorhynchus and the relatively infrequent raising of pigs may account for the low prevalence of JE neutralizing antibodies in the human populations of Lombok.

  8. 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.

  9. Socioeconomic Attainment in the Ellis Island Era.

    PubMed

    White, Michael J; Mullen, Erica Jade

    2016-01-01

    Contemporary discussions of immigrant assimilation in the United States often take the experience of the late 19(th) and early 20(th) centuries as a benchmark, yet significant gaps remain in our understanding of the generality and rate of immigrant progress during that era. Using four decades of IPUMS census microdata, we utilize both OLS microdata regression and double cohort methodology to examine socioeconomic assimilation across arrival cohort and country of origin during the Ellis Island era. Our results show, contrary to some writing, that while the first generation (the foreign born) exhibit decidedly inferior labor market outcomes, socioeconomic attainment (measured by Socio-Economic Index [SEI] points) increased quickly with duration in the U.S. Persons of the second generation and those of mixed parentage show much less penalty than immigrants. At the same time, we uncover differences in outcome by European region that do not disappear over the decades we examine.

  10. 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.

  11. Microbial to reef scale interactions between the reef-building coral Montastraea annularis and benthic algae

    PubMed Central

    Barott, Katie L.; Rodriguez-Mueller, Beltran; Youle, Merry; Marhaver, Kristen L.; Vermeij, Mark J. A.; Smith, Jennifer E.; Rohwer, Forest L.

    2012-01-01

    Competition between reef-building corals and benthic algae is of key importance for reef dynamics. These interactions occur on many spatial scales, ranging from chemical to regional. Using microprobes, 16S rDNA pyrosequencing and underwater surveys, we examined the interactions between the reef-building coral Montastraea annularis and four types of benthic algae. The macroalgae Dictyota bartayresiana and Halimeda opuntia, as well as a mixed consortium of turf algae, caused hypoxia on the adjacent coral tissue. Turf algae were also associated with major shifts in the bacterial communities at the interaction zones, including more pathogens and virulence genes. In contrast to turf algae, interactions with crustose coralline algae (CCA) and M. annularis did not appear to be antagonistic at any scale. These zones were not hypoxic, the microbes were not pathogen-like and the abundance of coral–CCA interactions was positively correlated with per cent coral cover. We propose a model in which fleshy algae (i.e. some species of turf and fleshy macroalgae) alter benthic competition dynamics by stimulating bacterial respiration and promoting invasion of virulent bacteria on corals. This gives fleshy algae a competitive advantage over corals when human activities, such as overfishing and eutrophication, remove controls on algal abundance. Together, these results demonstrate the intricate connections and mechanisms that structure coral reefs. PMID:22090385

  12. 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

  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. 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

  16. 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

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

    DTIC Science & Technology

    2014-07-01

    geology : field experience indicates that often in excess of 90% of objects excavated during the course of a MR are found to be nonhazardous 2...ESTCP MUNITIONS RESPONSE Live Site Demonstration Former Camp Ellis ESTCP Project Number MR-201229 ARCADIS Project Number...COVERED - 4. TITLE AND SUBTITLE ESTCP MUNITIONS RESPONSE Live Site Demonstration Former Camp Ellis 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c

  18. 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.

  19. 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...

  20. 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...

  1. 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

  2. A high-resolution calibration of Sr/Ca thermometry using the Caribbean coral Montastraea annularis

    NASA Astrophysics Data System (ADS)

    Swart, P. K.; Elderfield, H.; Greaves, M. J.

    2002-11-01

    A relationship has been established between the Sr/Ca ratio in the skeleton of the scleractinian coral Montastraea annularis and sea surface water temperature in south Florida. In order to obtain this correlation, specimens of Montastraea annularis were transplanted to a site at a local reef where every two to three months throughout a 2-year period the corals were stained with Alizarin-red S and where water temperature, which annually ranges between ˜20° and 30°C, was continually monitored. At the end of the experimental period the coral skeleton was sampled at a rate of ˜50 samples per year, each sample corresponding to only around 20 μg of calcium carbonate. For the 2.5-year period, the Sr/Ca ratio exhibited excellent correlation in the first year (R2 = 0.83; Sr/Ca (mmol/mol) = 10.11 - 0.0452 × SST (°C)), but a rather poorer correlation in the second year (R2 = 0.68; Sr/Ca (mmol/mol) = 10.09 - 0.0406 × SST (°C)). Averaging the data into monthly values for year 1, we determined a relationship of (Sr/Ca (mmol/mol) = 10.165 - 0.0471 × SST (°C). On the basis of the excellent correlation between temperature and Sr/Ca, we feel that this relationship is the most accurate. Discrepancies in the second year are suggested to arise from slight sampling errors relative to the stain lines.

  3. 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.

  4. 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

  5. 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

    ... AGENCY Ellis Road/American Electric Corporation, Jacksonville, Duval County, FL, Notice of Settlement... over 80 settling parties at the Ellis Road/American Electric Corporation Superfund Site located in... Ms. Paula V. Painter. Submit your comments by Site name Ellis Road/American Electric Corporation Site...

  6. 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)

  7. 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.

  8. 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)

  9. Rational Emotive Behavior Therapy after Ellis: Predictions for the Future.

    ERIC Educational Resources Information Center

    Weinrach, Stephen G.; Ellis, Albert; DiGiuseppe, Raymond; Bernard, Michael E.; Dryden, Windy; Kassinove, Howard; Morris, G. Barry; Vernon, Ann; Wolfe, Janet

    1995-01-01

    Nine members of the institute for Rational-Emotive Therapy's (REBT) International Training Standards and Review Committee predicted the status of REBT 25 to 50 years after the death of Albert Ellis. Will REBT continue to exist in its own right or be incorporated into newer forms of cognitive behavior therapy? (EMK)

  10. 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.

  11. 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…

  12. 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.

  13. 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…

  14. 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)

  15. 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…

  16. Endorsement of Ellis' Irrational Beliefs as a Function of Age.

    ERIC Educational Resources Information Center

    Lee, Dong Yul; And Others

    1979-01-01

    Children from grades 5, 7, 9, 11, and 13 were administered a modification of Ellis' eleven irrational beliefs questionnaire. As predicted, the younger children showed higher irrational scores, indicating that endorsing irrational beliefs is a function of age. Construct validity and uses of the scale are discussed. (Editor/SJL)

  17. An Empirical Evaluation of Ellis' Rational Emotive Theory.

    ERIC Educational Resources Information Center

    Wright, Loyd S.; Couch, R. David

    Ellis' rational emotive theory is based on the assumption that people are born with a potential for both rational and irrational thinking. To analyze the relationship of irrational beliefs to sensitivity, depression, submission, anxiety, and neuroticism, an Irrationality Scale, containing eight irrational beliefs, was constructed from a review of…

  18. Criterion Validity for Ellis' Irrational Beliefs: Dogmatism and Uncritical Inferences.

    ERIC Educational Resources Information Center

    Tobacyk, Jerome; Milford, Gary

    1982-01-01

    Tested a sample of college students to determine the validity of Ellis' contention that irrational beliefs: (1) are held dogmatically and (2) interfere with logical inference making. Found greater endorsement of irrational beliefs on the Irrational Belief Scale associated with (1) greater dogmatism and (2) less critical inference making.…

  19. 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.

  20. 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.

  1. Functional and Structural Characterization of a Thermostable Phospholipase A2 from a Sparidae Fish (Diplodus annularis).

    PubMed

    Smichi, Nabil; Othman, Houcemeddine; Achouri, Neila; Noiriel, Alexandre; Arondel, Vincent; Srairi-Abid, Najet; Abousalham, Abdelkarim; Gargouri, Youssef; Miled, Nabil; Fendri, Ahmed

    2017-03-22

    Novel phospholipase (PLA2) genes from the Sparidae family were cloned. The sequenced PLA2 revealed an identity with pancreatic PLA2 group IB. To better understand the structure/function relationships of these enzymes and their evolution, the Diplodus annularis PLA2 (DaPLA2) was overexpressed in E. coli. The refolded enzyme was purified by Ni-affinity chromatography and has a molecular mass of 15 kDa as determined by MALDI-TOF spectrometry. Interestingly, unlike the pancreatic type, the DaPLA2 was active and stable at higher temperatures, which suggests its great potential in biotechnological applications. The 3D structure of DaPLA2 was constructed to gain insights into the functional properties of sparidae PLA2. Molecular docking and dynamic simulations were performed to explain the higher thermal stability and the substrate specificity of DaPLA2. Using the monolayer technique, the purified DaPLA2 was found to be active on various phospholipids ranging from 10 to 20 mN·m(-1), which explained the absence of the hemolytic activity for DaPLA2.

  2. 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.

  3. 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

  4. The effect of filamentous turf algal removal on the development of gametes of the coral Orbicella annularis.

    PubMed

    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 complete

  5. Inspection and assessment of energy conservation opportunities at Ellis Island National Park, Ellis Island, New York

    SciTech Connect

    Armstrong, P.R.; Parker, G.B.; Richman, E.E.

    1992-12-01

    Ellis Island is a National Park Service (NPS) facility located in New York Harbor that hosts two million visitors per year. The main building houses exhibits and artifacts, food and gift concessions, and staff work and office spaces in a 200,000-square-foot floor area. Heating and cooling of the main building are provided by a central heating and cooling plant, housed in an adjacent 20,000-square-foot building, with distribution by nine main fan systems and perimeter radiators. Energy end-use estimates were obtained by reconciling connected load characteristics with billing data. The energy-use intensities are about 40 kWh/ft[sup 2]-yr for electricity and 170,000 Btu/ft[sup 2]-yr for natural gas. Energy use is higher than expected for facilities of this type in this region. This high energy use is due to a number of factors. A large fraction of the lighting is provided by incandescent lamps. Constant-volume air-handlers and reheat coils are used in most of the exhibit spaces. Tight temperature and humidity control is achieved in these spaces at the expense of substantial energy use for simultaneous heating and cooling. The large window area is made up of entirely of single-glazed units. Ventilation is controlled by time schedules, not occupant load. Most motors and pumps are single-speed rather than the more efficient variable speed drive type. A preliminary assessment of the potential for energy conservation has been made after a site inspection and analysis of utility bills, building plans, and other information. The electric savings potential is over 30% using available, generally cost-effective technologies. The fossil fuel savings potential is over 1,500 MBtu per year and could be much higher because 10,000 MBtu/yr of natural gas consumption could not be accounted for in our analysis. Cost-effective Energy Conservation Opportunities were identified in the areas of lighting, HVAC, central plant, envelope, motors, and other equipment and loads.

  6. Inspection and assessment of energy conservation opportunities at Ellis Island National Park, Ellis Island, New York

    SciTech Connect

    Armstrong, P.R.; Parker, G.B.; Richman, E.E.

    1992-12-01

    Ellis Island is a National Park Service (NPS) facility located in New York Harbor that hosts two million visitors per year. The main building houses exhibits and artifacts, food and gift concessions, and staff work and office spaces in a 200,000-square-foot floor area. Heating and cooling of the main building are provided by a central heating and cooling plant, housed in an adjacent 20,000-square-foot building, with distribution by nine main fan systems and perimeter radiators. Energy end-use estimates were obtained by reconciling connected load characteristics with billing data. The energy-use intensities are about 40 kWh/ft{sup 2}-yr for electricity and 170,000 Btu/ft{sup 2}-yr for natural gas. Energy use is higher than expected for facilities of this type in this region. This high energy use is due to a number of factors. A large fraction of the lighting is provided by incandescent lamps. Constant-volume air-handlers and reheat coils are used in most of the exhibit spaces. Tight temperature and humidity control is achieved in these spaces at the expense of substantial energy use for simultaneous heating and cooling. The large window area is made up of entirely of single-glazed units. Ventilation is controlled by time schedules, not occupant load. Most motors and pumps are single-speed rather than the more efficient variable speed drive type. A preliminary assessment of the potential for energy conservation has been made after a site inspection and analysis of utility bills, building plans, and other information. The electric savings potential is over 30% using available, generally cost-effective technologies. The fossil fuel savings potential is over 1,500 MBtu per year and could be much higher because 10,000 MBtu/yr of natural gas consumption could not be accounted for in our analysis. Cost-effective Energy Conservation Opportunities were identified in the areas of lighting, HVAC, central plant, envelope, motors, and other equipment and loads.

  7. 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

  8. 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.

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. 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.

  14. 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.

  15. 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

  16. 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.

  17. 78 FR 74009 - Safety Zone; Nike Fireworks, Upper New York Bay, Ellis Island, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-10

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 Safety Zone; Nike Fireworks, Upper New York Bay, Ellis Island, NY..., 2011 (76 FR 69614). ] Table 1 1. Nike Fireworks Ellis Launch site: A barge located Island Safety Zone...

  18. 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... cultural resources. Federal assistance will be provided under authority of the Small Watershed...

  19. Photographs of Ellis Island: The High Tide of Immigration. Teaching with Documents.

    ERIC Educational Resources Information Center

    Haverkamp, Beth; Schamel, Wynell

    1994-01-01

    Asserts that, for generations of immigrants, the federal immigration station at Ellis Island, New York, left an indelible first impression of life in the United States. Presents a lesson plan based on photographs of immigrants at Ellis Island and two poems about immigration. (CFR)

  20. ASTROMETRIC IMAGE CENTROID DISPLACEMENTS DUE TO GRAVITATIONAL MICROLENSING BY THE ELLIS WORMHOLE

    SciTech Connect

    Toki, Yukiharu; Kitamura, Takao; Asada, Hideki; Abe, Fumio

    2011-10-20

    Continuing work initiated in an earlier publication, we study the gravitational microlensing effects of the Ellis wormhole in the weak-field limit. First, we find a suitable coordinate transformation, such that the lens equation and analytic expressions of the lensed image positions can become much simpler. Second, we prove that two images always appear for the weak-field lens by the Ellis wormhole. By using these analytic results, we discuss astrometric image centroid displacements due to gravitational microlensing by the Ellis wormhole. The astrometric image centroid trajectory by the Ellis wormhole is different from the standard one by a spherical lensing object that is expressed by the Schwarzschild metric. The anomalous shift of the image centroid by the Ellis wormhole lens is smaller than that by the Schwarzschild lens, provided that the impact parameter and the Einstein ring radius are the same. Therefore, the lensed image centroid by the Ellis wormhole moves slower. Such a difference, although it is very small, will be, in principle, applicable for detecting or constraining the Ellis wormhole by using future high-precision astrometry observations. In particular, the image centroid position gives us additional information, so that the parameter degeneracy existing in photometric microlensing can be partially broken. The anomalous shift reaches the order of a few micro arcseconds, if our galaxy hosts a wormhole with throat radius larger than 10{sup 5} km. When the source moves tangentially to the Einstein ring, for instance, the maximum position shift of the image centroid by the Ellis wormhole is 0.18 normalized by the Einstein ring radius. For the same source trajectory, the maximum difference between the centroid displacement by the Ellis wormhole lens and that by the Schwarzschild one with the same Einstein ring radius is -0.16 in the units of the Einstein radius, where the negative means that the astrometric displacement by the Ellis wormhole lens is

  1. 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.

  2. 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.

  3. 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.

  4. Howard Andrew Knox and the origins of performance testing on Ellis Island, 1912-1916.

    PubMed

    Richardson, John T E

    2003-05-01

    Howard Andrew Knox was Assistant Surgeon at the immigration station at Ellis Island, New York, between April 1912 and May 1916. In response to public disquiet that the physicians at Ellis Island were failing to prevent mentally retarded people from entering the country, Knox and his colleagues assembled a collection of performance tests that could be administered to potential immigrants with little knowledge of the English language. They were subsequently used in clinical practice and in educational, psychological, and social research. Because of the early work done at Ellis Island, it is nowadays taken for granted that any adequate measure of intelligence must include both verbal and performance subtests.

  5. 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.

  6. 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

  7. Patterns of association between Symbiodinium and members of the Montastraea annularis species complex on spatial scales ranging from within colonies to between geographic regions

    NASA Astrophysics Data System (ADS)

    Garren, Melissa; Walsh, Sheila M.; Caccone, Adalgisa; Knowlton, Nancy

    2006-11-01

    Patterns of associations between coral colonies and the major clades of zooxanthellae can vary across scales ranging from individual colonies to widely separated geographic regions. This is exemplified in this study of the Montastraea annularis species complex from six sites on the Mesoamerican Reef, Belize and nine sites in the Bocas del Toro archipelago, Panama. Restriction fragment length polymorphism (RFLP) analysis of small subunit ribosomal DNA (SSU rDNA) was used to identify the zooxanthellae. In Belize ( M. annularis), Symbiodinium B (79% of the colonies), Symbiodinium A, and Symbiodinium C were observed. In Panama (primarily M. franksi, but also M. annularis and M. faveolata), there was greater diversity and evenness with Symbiodinium A, B, C, C' (a new symbiont) and D all being common in at least some host/habitat combinations. Non-metric multidimensional scaling ordinations showed that distribution patterns of symbionts across sites are best explained by enclosure (relative influence of open ocean vs. coastal water) and total suspended solids. Because members of clade D are known to be temperature resistant and Symbiodinium C' was found in environments characterized by high sedimentation, these Panamanian reefs may have importance from a management perspective as reservoirs of corals better able to tolerate human impacts.

  8. 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.

  9. Ellis-van Creveld syndrome: report of two cases.

    PubMed

    Mehndiratta, Sumit; Tyagi, Amita; Devgan, Veena

    2011-11-01

    Ellis-van Creveld syndrome (EVC syndrome, MIM 225500) or chondroectodermal dysplasia is a rare, autosomal recessive disorder. This syndrome is characterized by a tetrad of chondrodystrophy, post axial polydactyly, and hidrotic ectodermal dysplasia, mostly involving teeth and nails and a high frequency of congenital cardiac anomalies, most frequently a common atrium. The genetic basis of this disorder has been identified as mutations in the Evc and Evc2 genes. We present a report of two affected siblings with features consistent with those of the syndrome. A 2-month-old child with features of lower respiratory tract infection was admitted to the pediatric emergency department. Detailed examination revealed skeletal anomalies such as limb shortening and polydactyly in both hands. On cardiac evaluation, ventricular septal defect was found. There were no neonatal teeth. A diagnosis of EVC syndrome was made based on the findings. Screening of family members revealed that the elder sibling had features consistent with those of EVC syndrome. He was 4 years old, yet undiagnosed with short bones, polydactyly, partial anodontia and ventricular septal defect. The third child and the parents were unaffected. The treatment of this disorder is primarily supportive particularly for associated cardio-respiratory problems. The parents were extensively counseled for regular follow-up. The diagnosis of this syndrome is based on clinical grounds supported by radiological evaluation. Prenatal diagnosis is possible by ultrasonography and genetic testing. Genetic counseling is required to make the parents aware of the risk of recurrences.

  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. 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.

  12. Endorsements of Ellis' Irrational Beliefs as a Function of DSM-III Psychotic Diagnosis.

    ERIC Educational Resources Information Center

    Newark, Charles S.; Whitt, J. Kenneth

    1983-01-01

    Examined opinions of normal subjects (N=120) and patients diagnosed as manic and schizophrenic (N=150) regarding Ellis's 11 irrational beliefs. Results showed that the schizophrenia and major depressive groups endorsed three and four irrational beliefs respectively with no endorsement from the normal and manic groups. (LLL)

  13. 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.…

  14. 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…

  15. 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…

  16. 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…

  17. 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…

  18. 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.…

  19. Re-Enactment of the Ellis Island Experience with Sugartown Elementary School.

    ERIC Educational Resources Information Center

    Rothberg, Marilyn

    1998-01-01

    Describes how fifth-grade teachers and a school library media specialist in Malvern, Pennsylvania collaborated in a student reenactment of the Ellis Island experience. Includes a bibliography of immigration resources and sample background information, identification, entrance papers, and experience of a simulated immigrant. (PEN)

  20. Modeling the Information-Seeking Behavior of Social Scientists: Ellis's Study Revisited.

    ERIC Educational Resources Information Center

    Meho, Lokman I.; Tibbo, Helen R.

    2003-01-01

    Revises David Ellis's information-seeking behavior model of social scientists which includes six generic features: starting, chaining, browsing, differentiating, monitoring, and extracting. Suggests four new features be added: accessing, networking, verifying, and information managing; and describes a new model that includes searching, accessing,…

  1. 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…

  2. 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…

  3. 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.

  4. 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.

  5. 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

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

    PubMed

    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.

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

    PubMed

    Andralojc, Karolina M; Campbell, Anne C; Kelly, Ashley L; Terrey, Markus; Tanner, Paige C; Gans, Ian M; Senter-Zapata, Michael J; Khokhar, Eraj S; Updike, Dustin L

    2017-02-01

    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.

  8. 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.

  9. 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.

  10. [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.

  11. 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.

  12. 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.

  13. 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.

  14. 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.

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

    PubMed Central

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

    2015-01-01

    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. PMID:26106249

  16. Report of Two Siblings with Overlapping Features of Ellis-van Creveld and Weyers Acrodental Dysostosis

    PubMed Central

    Shetty, Devi C.; Singh, Harkanwal P.; Kumar, Prince; Verma, Chanchal

    2012-01-01

    Skeletal dysplasias are a heterogenous group of disorders combining abnormalities in the skull and other skeletal bones. Weyers acrofacial dysostosis also known as Weyers acrodental dysostosis was first described in 1952, by Weyers, as a postaxial polydactyly, which had features distinct from, yet some in common with the Ellis-van Creveld Syndrome (EvC). Both the syndromes have been mapped to the same chromosome, 4p16. The cases reported here highlight the overlapping features of both syndromes, which are dissimilar in mode of inheritance and phenotypic severity, emphasizing the need for genetic analysis, to categorize these conditions. PMID:22616035

  17. 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.

  18. 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.

  19. 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.

  20. [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.

  1. Opening Children's Eyes to the World in Which They Live--One Book at a Time: A Conversation with Deborah Ellis

    ERIC Educational Resources Information Center

    Napoli, Mary

    2007-01-01

    Quality multicultural literature offers readers opportunities to read about characters from various cultures, lands, and background. There are many talented authors, such as Deborah Ellis, who have added to the wide range of multicultural literature available for today's youth. Through her books, Ellis immerses readers in cultures and societies…

  2. 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.

  3. 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. Copyright © 2012 Elsevier Masson SAS. All rights reserved.

  4. 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

  5. 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.

  6. Chemical Constituents from the Flowers of Wild Gardenia jasminoides J.Ellis.

    PubMed

    Zhang, Hu; Feng, Ning; Xu, Yan-Tong; Li, Tian-Xiang; Gao, Xiu-Mei; Zhu, Yan; Song, Yun Seon; Wang, Ya-Nan; Wu, Hong-Hua

    2017-05-01

    Four new iridoids, 2'-O-(E)-coumaroylshanzhiside (1), 6'-O-(E)-coumaroylshanzhiside (2), 8α-butylgardenoside B (3), 6α-methoxygenipin (4), and one new phenylpropanoid glucoside, 5-(3-hydroxypropyl)-2-methoxyphenyl β-d-glucopyranoside (5), together with sixteen known compounds, were isolated from the edible flowers of wild Gardenia jasminoides J.Ellis. Their chemical structures were characterized by extensive spectroscopic techniques, including 1D- and 2D-NMR, HR-ESI-MS, and CD experiments. The absolute configurations of the new isolates' sugar moiety were assigned by HPLC analysis of the acid hydrolysates. Furthermore, the antioxidant activities of those isolates were preliminarily evaluated by DPPH scavenging experiment. And comparison of (1) H-NMR spectra for the EtOH extract of G. jasminoides J.Ellis, gardenoside B and geniposide revealed that the flowers of this plant have a considerable content of gardenoside B instead of geniposide in the fruits, indicating different activities and applications in people's daily life. © 2017 Wiley-VHCA AG, Zurich, Switzerland.

  7. Nineteenth-century British psychiatric writing about homosexuality before Havelock Ellis: the missing story.

    PubMed

    Crozier, Ivan

    2008-01-01

    Recent accounts of the emergence of sexology have addressed the role played by homosexuals and sexual radicals in framing the questions posed by psychiatrists. This work has focused largely upon American and Continental psychiatry (with regard to homosexuality), with attention to British sexologists sometimes being tied to contemporary feminist concerns with the sexual double standard. In both cases, psychiatrists are shown to be following other social movements. In the existing work, British psychiatrists of the nineteenth century who wrote about homosexuality have been largely ignored because it appears to have been assumed that very little material existed prior to Havelock Ellis' Sexual Inversion (1897). In this article, I demonstrate that there were a number of British psychiatric discussions of sexual perversions, and that these discourses show an engagement on the part of British psychiatrists with the theoretical issues that occupied their (mostly) Teutonic colleagues, rather than evidence of any other external driving force behind the production of sexological discourses. These sexological texts are either original papers, or reviews of Continental sources, both of which illustrate the importation of sexological ideas into Britain before the writing of Havelock Ellis.

  8. 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 Section...

  9. 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)

  10. Training Preachers in the Ellis County Baptist Missionary Association of Texas in the Basics of Expository Preaching

    ERIC Educational Resources Information Center

    Gibson, Timothy Darryle

    2011-01-01

    This project was designed to train active and potential preachers in the Ellis County Baptist Missionary Association of Texas in the basics of expository preaching. Chapter 1 outlines the ministry context at Heritage Baptist Church, the project's purpose, and the project's goals. Chapter 2 examines the biblical and theological rationale that…

  11. 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.

  12. 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.

  13. 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

  14. Stability analysis of a Morris-Thorne-Bronnikov-Ellis wormhole with pressure

    SciTech Connect

    Novikov, I. D. Shatskiy, A. A.

    2012-05-15

    The model of a spherical Morris-Thorne-Bronnikov-Ellis wormhole is analyzed for stability. The matter of this wormhole is composed of a radial monopole magnetic field and a quasi-perfect phantom fluid. In the stationary case, the energy density of this fluid is negative and equal in magnitude to twice the energy density of the magnetic field. There is no pressure of this fluid in the stationary case (phantom dust), while in the case where the fluid energy density deviates from its stationary value, the pressure is proportional to the deviation of the energy density from its stationary value. An example of a wormhole stable against radial perturbations has been obtained.

  15. Reflections, memories, and sources 'The cleanest man on earth': Harcourt Whipple Ellis and the NLA Australian newspapers.

    PubMed

    Martyr, Philippa

    2010-01-01

    The National Library of Australia (NLA) Australian Newspapers project went public in July 2008, but many historians and researchers are as yet unaware of its existence, or of its great potential for their research. This article will demonstrate the revolutionary potential of this project for the history of medicine in Australia. Using the case ofa largely-forgotten Western Australian chemist, dentist, and optician, Harcourt Whipple Ellis, a search of the NLA Australian Newspapers project produces a substantial amount of information on his at times scandalous career, a general physical description, a verbatim quotation, and many other witnesses statements attributed to him. These newspaper articles flesh out' Ellis, and also provide valuable insights into early-twentieth-century life in Perth.

  16. Gastrointestinal absorption, antiproliferative and anti-inflammatory effect of the major carotenoids of Gardenia jasminoides Ellis on cancer cells.

    PubMed

    Oliveira, Hélder; Cai, Xiaoshuang; Zhang, Qian; de Freitas, Victor; Mateus, Nuno; He, Jingren; Fernandes, Iva

    2017-04-19

    The gastrointestinal absorption of the main carotenoids present in Gardenia jasminoides Ellis, crocetin, crocin-1 and crocin-2, was assayed through transport studies on MKN-28 and Caco-2 cell lines. Overall, crocetin was the compound that presented the highest gastrointestinal transport efficiency. Additionally, and since after absorption crocins are metabolized into crocetin, the antiproliferative capacity of crocetin was assayed in MKN-28 (stomach), MCF-7 (breast) and Caco-2 (colon) cancer cell lines. The results point to an antiproliferative effect of crocetin on the three cell lines tested. Anti-inflammatory properties were also assayed. Overall, crocetin showed a potential involvement in the downregulation of IL-1β and TNF-α but not IL-6. Altogether, these results suggest that these compounds can have an important role against cancer proliferation, highlighting the importance of Gardenia jasminoides Ellis as a nutraceutical food source.

  17. 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.

  18. 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.

  19. 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

  20. 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. (c) 2007 Wiley-Liss, Inc.

  1. 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. © 2016 Japan Pediatric Society.

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

    PubMed Central

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

    2011-01-01

    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. PMID:22190900

  3. 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.

  4. 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.

  5. 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.

  6. 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

  7. 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

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

    PubMed Central

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

    2014-01-01

    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. PMID:24996003

  9. 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.

  10. 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. © 2016 Wiley Periodicals, Inc.

  11. 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.

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

    PubMed

    Ali, Bassam R; Akawi, Nadia A; Chedid, Faris; Bakir, Mahmood; Ur Rehman, Moghis; Rahmani, Aiman; Al-Gazali, Lihadh

    2010-02-25

    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. 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). 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. 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.

  13. Ellis van Creveld2 is required for postnatal craniofacial bone development

    PubMed Central

    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

    2016-01-01

    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. PMID:27090777

  14. 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

  15. 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. © The Author(s) 2015.

  16. 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.

  17. First-trimester prenatal diagnosis of Ellis-van Creveld syndrome.

    PubMed

    Chen, Chih-Ping; Chen, Chen-Yu; Chern, Schu-Rern; Su, Jun-Wei; Wang, Wayseen

    2012-12-01

    To present the perinatal findings and first-trimester molecular and transabdominal ultrasound diagnosis of a fetus with Ellis-van Creveld (EvC) syndrome. A 35-year-old woman was referred for genetic counseling at 13 weeks of gestation because of a family history of skeletal dysplasia. She had experienced one spontaneous abortion, and delivered one male fetus and one female fetus with EvC syndrome. During this pregnancy, a prenatal transabdominal ultrasound at 13(+4) weeks of gestation revealed a nuchal translucency (NT) thickness of 2.0 mm, an endocardial cushion defect, postaxial polydactyly of bilateral hands, and mesomelic dysplasia of the long bones. Amniocentesis was performed at 13(+5) weeks of gestation. Results of a cytogenetic analysis revealed a karyotype of 46,XX and that of a molecular analysis revealed compound heterozygous mutations of c.1195C>T and c.871-2_894del26 in the EVC2 gene. Prenatal ultrasound at 16 weeks of gestation showed a fetus with short limbs, an endocardial cushion defect, and postaxial polydactyly of bilateral hands. The parents decided to terminate the pregnancy, and a 116-g female fetus was delivered with a narrow thorax, shortening limbs, and postaxial polydactyly of the hands. Prenatal diagnosis of an endocardial cushion defect with postaxial polydactyly should include a differential diagnosis of EvC syndrome in addition to short rib-polydactyly syndrome, Bardet-Biedl syndrome, orofaciodigital syndrome, Smith-Lemli-Opitz syndrome, and hydrolethalus syndrome. Copyright © 2012. Published by Elsevier B.V.

  18. GLI1 Inactivation is associated with Developmental Phenotypes Overlapping with Ellis-Van Creveld Syndrome.

    PubMed

    Palencia-Campos, Adrian; Ullah, Asmat; Nevado, Julian; Yildirim, Ruken; Unal, Edip; Ciorraga, Maria; Barruz, Pilar; Chico, Lucia; Piceci-Sparascio, Francesca; Guida, Valentina; De Luca, Alessandro; Kayserili, Hülya; Ullah, Irfan; Burmeister, Margit; Lapunzina, Pablo; Ahmad, Wasim; Morales, Aixa; Ruiz-Perez, Victor L

    2017-08-26

    GLI1, GLI2 and GLI3 form a family of transcription factors which regulate development by mediating the action of Hedgehog (Hh) morphogens. Accordingly, inactivating variants in GLI2 and GLI3 are found in several developmental disorders. In contrast, loss-of-function mutations in GLI1 have remained elusive, maintaining enigmatic the role of this gene in the human embryo. We describe eight patients from three independent families having biallelic truncating variants in GLI1 and developmental defects overlapping with Ellis-van Creveld syndrome (EvC), a disease caused by diminished Hh signalling. Two families had mutations in the last exon of the gene and a third family was identified with an N-terminal stop gain variant predicted to be degraded by the NMD-pathway. Analysis of fibroblasts from one of the patients with homozygous C-terminal truncation of GLI1 demonstrated that the corresponding mutant GLI1 protein is fabricated by patient cells and becomes upregulated in response to Hh signalling. However, the transcriptional activity of the truncated GLI1 factor was found to be severely impaired by cell culture and in vivo assays, indicating that the balance between GLI repressors and activators is altered in affected subjects. Consistent with this, reduced expression of the GLI target PTCH1 was observed in patient fibroblasts after chemical induction of the Hh pathway. We conclude that GLI1 inactivation is associated with a phenotypic spectrum extending from isolated postaxial polydactyly to an EvC-like condition. © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  19. 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

  20. Ellis-van Creveld syndrome: prenatal diagnosis, molecular analysis and genetic counseling.

    PubMed

    Chen, Chih-Ping; Su, Yi-Ning; Hsu, Chin-Yuan; Chern, Schu-Rern; Tsai, Fuu-Jen; Wu, Pei-Chen; Chen, Po-Tsang; Wang, Wayseen

    2010-12-01

    To present the perinatal findings and molecular genetic analysis of two siblings with Ellis-van Creveld (EvC) syndrome. A 33-year-old woman, gravida 3, para 1, was referred for genetic counseling at 18 gestational weeks because of recurrent fetal skeletal dysplasia. Two years previously, she had delivered a 1,316-g dead male baby at 28 gestational weeks with a karyotype of 46,XY, postaxial polydactyly of the hands, thoracic narrowness, endocardial cushion defects, transposition of the great arteries, shortening of the long bones, malposition of the toes, and hypoplastic nails. During this pregnancy, prenatal ultrasound at 18 gestational weeks revealed shortening of the long bones (equivalent to 15 weeks), postaxial polydactyly of both hands, thoracic narrowness, and endocardial cushion defects. The pregnancy was subsequently terminated, and a 236-g female fetus was delivered with a karyotype of 46,XX, postaxial polydactyly of the hands, thoracic dysplasia, endocardial cushion defects, shortening of the long bones, and malposition of the toes and hypoplastic nails. The phenotype of each of the two siblings was consistent with EVC syndrome. Molecular analysis of the EVC and EVC2 genes revealed heterozygous mutations in the EVC2 gene. A heterozygous deletion mutation of a 26-bp deletion of c.871-2_894del26 encompassing the junction between intron 7 and exon 8 of the EVC2 gene was found in the mother and two siblings, and a heterozygous nonsense mutation of c.1195C >T, p.R399X in exon 10 of the EVC2 gene was found in the father and two siblings. Prenatal sonographic identification of endocardial cushion defects in association with shortening of the long bones should alert clinicians to the possibility of EvC syndrome and prompt a careful search of hexadactyly of the hands. Molecular analysis of the EVC and EVC2 genes is helpful in genetic counseling in cases with prenatally detected postaxial polydactyly, thoracic narrowness, short limbs and endocardial cushion defects

  1. 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

  2. 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. Copyright 2009 Wiley-Liss, Inc.

  3. 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

  4. 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. Copyright © 2012 Elsevier B.V. All rights reserved.

  5. Fit to the Bjorken, Ellis-Jaffe and Gross-Llewellyn-Smith sum rules in a renormalon based approach

    SciTech Connect

    Campanario, Francisco; Pineda, Antonio

    2005-09-01

    We study the large order behavior in perturbation theory of the Bjorken, Ellis-Jaffe and Gross-Llewellyn-Smith sum rules. In particular, we consider their first infrared renormalons, for which we obtain their analytic structure with logarithmic accuracy and also an approximate determination of their normalization constant. Estimates of higher order terms of the perturbative series are given. The renormalon subtracted scheme is worked out for these observables and compared with experimental data. Overall, good agreement with experiment is found. This allows us to obtain a-circumflex{sub 0} and some higher-twist nonperturbative constants from experiment: a-circumflex 0.141{+-}0.089; f{sub 3,RS}(1 GeV)=-0.124{sub -0.142}{sup +0.137} GeV{sup 2}.

  6. Clinical and experimental keratitis due to Curvularia lunata (Wakker) Boedijn var. aeria (Batista, Lima and Vasconcelos) Ellis.

    PubMed

    Agrawal, P K; Lal, B; Shukla, P K; Khan, Z A; Srivastava, O P

    1982-09-01

    A case of mycotic keratitis due to Curvularia lunata var. aeria is reported for the first time from India. Direct microscopic examination of the corneal scrapings in KOH (50 g1(-1)), stained with lactophenol cotton blue, revealed brown septate hyphae and the cultures were found positive for fungus. It was identified as C. lunata (Wakker) Boedijn var. aeria (Batista, Lima and Vasconcelos) Ellis (IMI 253204) and its growth was better at 28 degrees C than at 37 degrees C. In vitro, the fungus was most sensitive to amphotericin B followed by miconazole nitrate, clotrimazole and triphenyltin isoselenocyanate 4-picoline which had the same activity. Lactones were least active and tolciclate and arnebins and inactive. The fungus produced experimental keratomycosis in the rabbit cornea and the infection severity as well as histopathological changes were more pronounced in rabbits that received penicillin, streptomycin and cortisone.

  7. 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

  8. 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

  9. 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.

  10. 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.

  11. Extending the spectrum of Ellis van Creveld syndrome: a large family with a mild mutation in the EVC gene.

    PubMed

    Ulucan, Hakan; Gül, Davut; Sapp, Julie C; Cockerham, John; Johnston, Jennifer J; Biesecker, Leslie G

    2008-10-23

    Ellis-van Creveld (EvC) syndrome is characterized by short limbs, short ribs, postaxial polydactyly, dysplastic nails and teeth and is inherited in an autosomal recessive pattern. We report a family with complex septal cardiac defects, rhizomelic limb shortening, and polydactyly, without the typical lip, dental, and nail abnormalities of EvC. The phenotype was inherited in an autosomal recessive pattern, with one instance of pseudodominant inheritance. Because of the phenotypic overlap with EvC, microsatellite markers were used to test for linkage to the EVC/EVC2 locus. The results did not exclude linkage, so samples were sequenced for mutations. We identified a c.1868T>C mutation in EVC, which predicts p.L623P, and was homozygous in affected individuals. We conclude that this EVC mutation is hypomorphic and that such mutations can cause a phenotype of cardiac and limb defects that is less severe than typical EvC. EVC mutation analysis should be considered in patients with cardiac and limb malformations, even if they do not manifest typical EvC syndrome.

  12. Wide-spread cone-shaped epiphyses in two Saudi siblings with Ellis-van Creveld syndrome.

    PubMed

    Al-Fardan, Abeer; Al-Qattan, Mohammad M

    2017-08-24

    Ellis-van Creveld (EVC) syndrome is one of the rarest ciliopathy syndromes. It is caused by mutations of the EVC and EVC2 genes which encode the EVC proteins present in the basal body of the primary cilium. We report on a Saudi family with two affected children. Gene analysis revealed a homozygous c.2T >A in exon 1 of the EVC gene. The most interesting finding in our patients was the wide - spread cone-shaped epiphyses in the hands and feet. Although cone-shaped epiphyses is a known feature of EVC syndrome, it usually limited to the middle or proximal phalanges. The wide-spread cone-shaped epiphyses seen in our patients have not been previously reported. EVC syndrome is very rare in the Middle East. We report on the first Saudi family with EVC syndrome confirmed by gene analysis. The most unique finding in our patients was the wide-spread cone-shaped epiphyses in the hands and feet. The abnormality is probably related to abnormal Indian hedgehog signaling in the primary cilium. Copyright © 2017 The Author(s). Published by Elsevier Ltd.. All rights reserved.

  13. 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.

  14. A novel missense mutation in the EVC gene underlies Ellis-van Creveld syndrome in a Pakistani family.

    PubMed

    Umm-E-Kalsoom; Wasif, Naveed; Tariq, Muhammad; Ahmad, Wasim

    2010-04-01

    Ellis-van Creveld (EVC) syndrome is a rare autosomal recessive disorder characterized by skeletal, ectodermal and cardiac defects. This syndrome is caused by mutations in EVC and EVC2 genes, which are separated by 2.6 kb of genomic sequence on chromosome 4p16. In the present study we ascertained a four-generation pedigree of Pakistani origin with features of EVC. Linkage was searched by genotyping microsatellite markers linked to chromosome 4p16. Affected individuals showed homozygosity to the microsatellite markers tightly linked to EVC and EVC2 genes on chromosome 4p16. It was then subjected to direct sequencing of the EVC and EVC2 genes. Mutation analysis of the EVC and EVC2 genes identified a novel missense change (c.617G>A; p.S206N) in the EVC gene. We herein report on the first family from Pakistan with a large number of individuals affected by EVC. DNA sequence analysis led to the identification of the fifth missense mutation in the EVC gene.

  15. Extending the spectrum of Ellis van Creveld syndrome: a large family with a mild mutation in the EVC gene

    PubMed Central

    Ulucan, Hakan; Gül, Davut; Sapp, Julie C; Cockerham, John; Johnston, Jennifer J; Biesecker, Leslie G

    2008-01-01

    Background Ellis-van Creveld (EvC) syndrome is characterized by short limbs, short ribs, postaxial polydactyly, dysplastic nails and teeth and is inherited in an autosomal recessive pattern. We report a family with complex septal cardiac defects, rhizomelic limb shortening, and polydactyly, without the typical lip, dental, and nail abnormalities of EvC. The phenotype was inherited in an autosomal recessive pattern, with one instance of pseudodominant inheritance. Methods Because of the phenotypic overlap with EvC, microsatellite markers were used to test for linkage to the EVC/EVC2 locus. The results did not exclude linkage, so samples were sequenced for mutations. Results We identified a c.1868T>C mutation in EVC, which predicts p.L623P, and was homozygous in affected individuals. Conclusion We conclude that this EVC mutation is hypomorphic and that such mutations can cause a phenotype of cardiac and limb defects that is less severe than typical EvC. EVC mutation analysis should be considered in patients with cardiac and limb malformations, even if they do not manifest typical EvC syndrome. PMID:18947413

  16. 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.

  17. 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

  18. 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.

  19. 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.

  20. 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.

  1. 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. © 2016 Japanese Teratology Society.

  2. Biallelic mutations in DYNC2LI1 are a rare cause of Ellis-van Creveld syndrome.

    PubMed

    Niceta, Marcello; Margiotti, Katia; Digilio, Maria Cristina; Guida, Valentina; Bruselles, Alessandro; Pizzi, Simone; Ferraris, Alessandro; Memo, Luigi; Laforgia, Nicola; Dentici, Maria Lisa; Consoli, Federica; Torrente, Isabella; Ruiz-Perez, Victor L; Dallapiccola, Bruno; Marino, Bruno; De Luca, Alessandro; Tartaglia, Marco

    2017-08-30

    Ellis van Creveld syndrome (EvC) is a chondral and ectodermal dysplasia caused by biallelic mutations in the EVC, EVC2 and WDR35 genes. A proportion of cases with clinical diagnosis of EvC, however, do not carry mutations in these genes. To identify the genetic cause of EvC in a cohort of mutation-negative patients, exome sequencing was undertaken in a family with three affected members, and mutation scanning of a panel of clinically and functionally relevant genes was performed in 24 additional subjects with features fitting/overlapping EvC. Compound heterozygosity for the c.2T>C (p.Met1?) and c.662C>T (p.Thr221Ile) variants in DYNC2LI1, which encodes a component of the intraflagellar transport-related dynein-2 complex previously found mutated in other short-rib thoracic dysplasias, was identified in the three affected members of the first family. Targeted resequencing detected compound heterozygosity for the same missense variant and a frameshift change (p.Val141*) in two siblings with EvC from a second family, while a newborn with a more severe phenotype carried two DYNC2LI1 truncating variants. Our findings indicate that DYNC2LI1 mutations are associated with a wider clinical spectrum than previously appreciated, including EvC, with the severity of the phenotype likely depending on the extent of defective DYNC2LI1 function. This article is protected by copyright. All rights reserved.

  3. 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.

  4. 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

  5. The New Ellis Island.

    ERIC Educational Resources Information Center

    Andersen, Kurt

    1983-01-01

    Describes cultural traits, lifestyles, and economic opportunities of different immigrant ethnic groups in Los Angeles, California; examines interrelationships among these groups and their relationships with Blacks and Whites; and explores problems due to increasing immigration and the resultant growth in size and variety of the Los Angeles…

  6. 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…

  7. 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.

  8. 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.

  9. Superfund record of decision (EPA Region 2): Ellis Property, Sharp Road, Burlington County, NJ. (First remedial action), September 1992. Final report

    SciTech Connect

    Not Available

    1992-09-30

    The 36-acre Ellis Property site is located in Evesham Township, Burlington County, New Jersey. Land use in the area immediately surrounding the site is primarily agricultural, and approximately 60 residences are located within 1 mile of the site. From 1968 to 1978, approximately 4 acres of the property were used to store and recondition drums. Site features included a two-story building, with several washing tanks and troughs, three sheds, a storage area, and a boiler. State investigations in 1980 identified stained soil, areas devoid of vegetation, and hundreds of drums containing various unknown liquids, some of which had corroded and were leaking into the onsite soil. The ROD addresses a final remedy for the remaining contaminated soil and ground water at the site. The primary contaminants of concern affecting the soil and ground water are VOCs, including PCE and TCE; other organics, including PCBs; and metals, including arsenic, chromium, and lead. The selected remedial action for this site includes excavating all contaminated soil, and treating metal-contaminated soil onsite or offsite using stabilization if necessary, prior to offsite disposal in a landfill.

  10. 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.

  11. Acousto-optic tunable filter near-infrared spectroscopy for in-line monitoring liquid-liquid extraction of Gardenia jasminoides Ellis based on statistical analysis.

    PubMed

    Wu, Sha; Jin, Ye; Liu, Qi-An; Wu, Jian-Xiong; Bi, Yu-An; Wang, Zhen-Zhong; Xiao, Wei

    2015-10-01

    This study aimed to monitor liquid-liquid extraction of Gardenia jasminoides Ellis (Zhizi in Chinese) using in-line near-infrared spectroscopy. Shanzhiside (SZS), deacetyl asperulosidic acid methyl ester (DAAME), genipin-1-β-D-gentiobioside (GG), geniposide (GS), total acids (TA) and soluble solid content (SSC) were selected as quality control indicators, and measured by reference methods. Both partial least-squares regression (PLSR) and back propagation artificial neural networks (BP-ANN) were applied to create models to predict the content of above indicators. Paired-samples t-test and nonparametric test were used to compare differences in predictive values between two models of each indicator. Relative standard error of prediction (RSEP) and mean absolute percentage error (MAPE) were used to evaluate the predictive accuracy of the established models. The results showed that there was no significant difference in predicting DAAME, GS and TA between two models. However, PLSR model gave better accuracy in predicting GG and SZS than BP-ANN model. The BP-ANN model of SSC was better than PLSR model. This study shows that NIR spectroscopy can be used for rapid and accurate analysis of quality control indicators in the liquid-liquid extraction of Zhizi. Simultaneously, this study can serve as technical support for the application of NIR spectroscopy in the industrial production process.

  12. Ameliorative effects of melatonin on dark-induced leaf senescence in gardenia (Gardenia jasminoides Ellis): leaf morphology, anatomy, physiology and transcriptome.

    PubMed

    Zhao, Daqiu; Wang, Rong; Meng, Jiasong; Li, Zhiyuan; Wu, Yanqing; Tao, Jun

    2017-09-05

    Cut gardenia (Gardenia jasminoides Ellis) foliage is widely used as a vase material or flower bouquet indoors; however, insufficient indoor light accelerates its senescence, which shortens its viewing time. In this study, applying melatonin to delay gardenia leaf senescence when exposed to extremely low light condition (darkness), and the results showed that 1.0 mM was the effective concentration. At this concentration, chlorophyll contents and chlorophyll fluorescence parameters (Fv/Fm, Fv/F0 and Y(II)) increased, while the carotenoid and flavonoid contents decreased. Meanwhile, stress physiological indices decreased in response to exogenous melatonin application, whereas an increase in glutamine synthetase activity, water and soluble protein contents was observed. Moreover, exogenous melatonin application also reduced leaf programmed cell death under darkness, increased the endogenous melatonin level, expression levels of tryptophan decarboxylase gene, superoxide dismutase and catalase activities and the ascorbate-glutathione cycle, and maintained more intact anatomical structures. Furthermore, transcriptome sequencing revealed that various biological processes responded to exogenous melatonin application, including carbohydrate metabolism, amino acid metabolism, lipid metabolism, plant hormone signal transduction and pigment biosynthesis. Consequently, dark-induced leaf senescence in gardenia was significantly delayed. These results provided a better understanding for improving the ornamental value of cut gardenia foliage using melatonin.

  13. 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. Copyright © 2011 Wiley-Liss, Inc.

  14. 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.

  15. Two standardized fractions of Gardenia jasminoides Ellis with rapid antidepressant effects are differentially associated with BDNF up-regulation in the hippocampus.

    PubMed

    Ren, Li; Tao, Weiwei; Zhang, Hailou; Xue, Wenda; Tang, Juanjuan; Wu, Ruyan; Xia, Baomei; Wu, Haoxing; Chen, Gang

    2016-07-01

    Gardenia jasminoides Ellis (GJ) is one of the five constituents of Yueju pill, a Traditional Chinese Medicine for treatment of syndromes associated with mood disorders. Recently, preclinical and clinical studies suggest that Yueju pill confers rapid antidepressant effects. GJ is identified as the constituent primary for Yueju pill's rapid antidepressant effects. GJ's antidepressant action is temporally associated with up-regulated expression of brain-derived neurotrophic factor (BDNF) in the hippocampus. The present study aimed to identify chemical fractions responsible for the rapid antidepressant efficacy of GJ and its association with BDNF signaling. Four fractions of GJ were extracted using standardized procedure. The four fractions were screened for rapid antidepressant potential, using the behavioral paradigm of forced swimming test (FST) and tail suspension test (TST) assessed at 24h post a single administration. A single dose of the putatively effective fractions was further tested in mice exposed to chronic mild stress (CMS), followed with a comprehensive behavioral testing including TST, FST, sucrose preference test (SPT), and novelty suppressed-feeding (NSF). To test the association of BDNF signaling with rapid antidepressant effects of effective factions, the expressions of BDNF and its receptor tropomyosin receptor kinase B (TrkB) in the hippocampus were assessed at different times post a single administration of effective fractions. Both petroleum ether (GJ-PE) and n-butyl alcohol fraction (GJ-BO) fractions of GJ displayed rapid antidepressant potential in the FST. In the TST, the antidepressant effects of GJ-PE lasted for a longer time than GJ-BO. Acute administration of either GJ-PE or GJ-BO significantly reversed the behavioral deficits in the tests of TST, FST, SPT and NSF in chronically stressed mice, confirming both fractions conferred rapid antidepressant efficacy. Interestingly, GJ-PE, but not GJ-BO, increased the expression of BDNF and Trk

  16. Inter-species, Intra-species and Intra-shell Variations in the Stable Isotope Composition of Late Ordovician Brachiopods From the Ellis Bay Formation, Anticosti Island, Quebec

    NASA Astrophysics Data System (ADS)

    Schwarz, D. M.; Longstaffe, F.; Jin, J.

    2007-12-01

    Oxygen and carbon isotope results have been obtained for Late Ordovician (Hirnantian) brachiopod shells from the Ellis Bay Formation of Anticosti Island, Quebec. This location contains one of the world's most complete Ordovician-Silurian boundary successions and is renown for its abundance of well-preserved brachiopods. The site therefore offers an opportunity to explore the extent of preservation of primary oxygen and carbon isotope compositions in its ancient fossil materials. Three to four samples of each of eight species that lived contemporaneously in very similar environments were analyzed. Several analyses were performed along distinct growth lines of each shell; matrix carbonate and secondary calcite formed during diagenesis were also measured. Mean oxygen isotope values among the different species ranged from -4.1 to -3.1 per mil (VPDB) and mean carbon isotope values ranged from 0.4 to 1.8 per mil. The maximum variation among shells of the same species was 1.0 per mil for oxygen and 0.8 per mil for carbon (both for Parastrophinella). Intra-shell variation along growth lines for all brachiopod species was characterized by systematically higher carbon isotope values (up to 0.8 per mil for Vellamo) with distance from the hinge. Such variations in oxygen isotope composition were not observed. Such behaviour can be explained as a function of brachiopod metabolism. A brachiopod's shell grows radially from the central hinge structure. Young brachiopods experience faster growth rates than older brachiopods, which should produce lower carbon isotope compositions relative to those expected from equilibrium fractionation. The observed pattern in carbon isotope values suggests that original shell compositions have remained intact at this locality. The small but significant differences in shell isotopic compositions within and among shell species may also indicate preservation of local variations in environmental conditions and species-dependent metabolic behaviours

  17. Ellis-Van Creveld Dysplasia

    MedlinePlus

    ... Trials Find a Researcher Collaboration Opportunities View All Research Professional Education Continuing Medical Education Graduate Medical Education Pediatric Residency Pharmacy Residency Psychology Programs Fellowships View All Professional Education Healthy Living ...

  18. 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. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  19. 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.

  20. Online microdialysis-ultra performance liquid chromatography-mass spectrometry method for comparative pharmacokinetic investigation on iridoids from Gardenia jasminoides Ellis in rats with different progressions of type 2 diabetic complications.

    PubMed

    Zhang, Xueju; Wang, Lu; Zheng, Zhong; Pi, Zifeng; Liu, Zhiqiang; Song, Fengrui

    2017-06-05

    Iridoid glycosides consist the main bioactive constituents of Gardenia jasminoides Ellis (G. jasminoides), which is used alone or in combination with other medicine herbs for treatment of diabetes mellitus in China. This paper investigated for the first time comparative pharmacokinetics (PKs) of four unbound iridoids (including genipin, geniposide, gardenoside and geniposidic acid) in rat blood between healthy and type 2 diabetic groups with different disease progressions (9 or 13 weeks). Online microdialysis-ultra performance liquid chromatography-mass spectrometry (MD- UPLC-MS/MS) method was used after oral administration of iridoid extracts obtained from the fruits of G. jasminoides. Student's t-test was used for statistical comparison of PK parameters. Results showed that genipin, geniposide and geniposidic acid feature higher Cmax, larger area under the curve (AUC), lower clearance (CL), longer Tmax and mean residence time (MRT) in type 2 diabetic rats than those in healthy rats (p<0.05). However, no significant difference was observed in PK parameters between the two diabetic groups with different complication progressions (p>0.05). Type 2 diabetic rats showed significantly altered PK behaviors of genipin, geniposide and geniposidic acid (especially systemic exposure, AUCs of genipin, geniposide and geniposidic acid). Online MD-UPLC-MS/MS provides real-time sampling and monitoring, these functions can be applied to PKs of iridoids from G. jasminoides. Copyright © 2017 Elsevier B.V. All rights reserved.

  1. 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

  2. Teaching about Immigration: Ellis Island and Beyond.

    ERIC Educational Resources Information Center

    Parrella, Michael; Zevin, Jack

    1987-01-01

    Introduces articles in this theme issue on immigration. Emphasizes that the objective is to explore Immigrant America in a more realistic light. Concludes that each of the articles contain practical suggestions and data for teachers' use. (BSR)

  3. Computerized tomography and skeletal density of coral skeletons

    NASA Astrophysics Data System (ADS)

    Bosscher, Hemmo

    1993-07-01

    In this paper I describe and discuss the use of medical X-ray computerized tomography (CT) in the study of coral skeletons. CT generates X-ray images along freely chosen sections through the skeleton and offers, as well, the possibility of density measurements based on X-ray attenuation. This method has been applied to measure the skeletal density of the Caribbean reef-building coral Montastrea annularis, from Curaçao, Netherlands Antilles. The observed, non-linear increase of skeletal density with depth can be attributed to decreasing photo-synthetic rates with increasing water depth. A comparison with extension rate measurements shows the inverse relationship between extension rate and skeletal density. CT proves to be aquick and non-destructive method to reveal growth structures (density banding) since it measures skeletal density.

  4. Oxygen and carbon isotopic growth record in a reef coral from the florida keys and a deep-sea coral from blake plateau

    USGS Publications Warehouse

    Emiliani, C.; Harold, Hudson J.; Shinn, E.A.; George, R.Y.

    1978-01-01

    Carbon and oxygen isotope analysis through a 30-year (1944 to 1974) growth of Montastrea annularis from Hen and Chickens Reef (Florida Keys) shows a strong yearly variation in the abundances of both carbon-13 and oxygen-18 and a broad inverse relationship between the two isotopes. Normal annual dense bands are formed during the summer and are characterized by heavy carbon and light oxygen. "Stress bands" are formed during particularly severe winters and are characterized by heavy carbon and heavy oxygen. The isotopic effect of Zooxanthellae metabolism dominates the temperature effect on the oxygen-18/oxygen-16 ratio. The isotopic results on the deep-sea solitary coral Bathypsammia tintinnabulum, where Zooxanthellae are nonexistent, indicates that the abundance of the heavy isotopes carbon-13 and oxygen-18 is inversely related to the growth rate, with both carbon and oxygen approaching equilibrium values with increasing skeletal age.

  5. 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.

  6. 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.

  7. Changes in Trace and Minor Constituents and Associated Micro-architecture of Montastrea faveolata during Time of "Stress"

    DTIC Science & Technology

    2003-09-01

    activity of endosymbiotic dinoflagellates (commonly called zooxanthellae ) playing a major role. During biomineralization, the carbonate skeleton...precipitation of the carbonate structure driven by the photosynthetic zooxanthellae [16]. In the Looe Key corals, the δ13C ranges from –20/00 to –30/00...in the low density portion of the skeleton reflecting an influence of zooxanthellae photosynthesis. However, during the formation of the high

  8. Mapping Prevalence and Incidence of Coral Disease in reef-building corals at two Natural Reserves of the Southwest Puerto Rico

    NASA Astrophysics Data System (ADS)

    Sanchez Viruet, I.; Irizarry-Soto, E.; Ruiz-Valentín, I.

    2016-02-01

    Coral diseases seems to be the main cause of coral reef decline in the Caribbean. Before the bleaching event of 2005, coral reefs in Puerto Rico were dominated by the reef-building taxa: Orbicella annularis, Porites astreoides, Montastrea cavernosa, Agaricia agaracites and Colpophyllia natans. After the event, live-coral cover significantly declined and more than 90% of the scleractinian corals in the U.S. Virgin Islands and Puerto Rico showed signals of thermal stressors. The prevalence of coral diseases in five reef-building coral (Orbicella annularis, Orbicella franksi, Orbicella faveolata, Porites porites and Pseudiploria strigosa) species was assessed by tagging, photographing, and mapping all diseased and healthy colonies within 10 permanent 40m2 band transects at each inshore and mid-shelf reefs of Belvedere and Punta Guaniquilla Natural Reserves using a random stratified sampling method. Maximum and perpendicular diameter was used to assess coral size using Coral Point Count with Excel Extension. Corals were classified into three size class populations (class I: 0-50cm, class II: 50-100cm and class III: >100 cm). Data was used to develop a GIS-based map containing coral species, size and disease presence. Preliminary results of the inshore area showed a higher disease prevalence in Belvedere natural reserve and for P. strigosa (17.1%) and O. annularis (9.3%). Frequency distribution analysis showed a dominance of O. faveolata at Punta Guaniquilla and Belvedere (127 and 88 individuals respectively). Size class I dominates the distribution of each species within the natural reserves with a higher disease prevalence. Future work include continue prevalence surveys of the outer reef shelf on both natural reserves, monitoring and GIS-based mapping of incidence and resilience through time. This study will help in the assessment of the status of the coral reef of the southwest insular platform.

  9. 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.

  10. KENNEDY SPACE CENTER, FLA. - Warren Elly (left), with WTVT-TV, Fox News, talks with Center Director Jim Kennedy at Garland V. Stewart Magnet Middle School, a NASA Explorer School (NES) in Tampa, Fla. Kennedy was joined by astronaut Kay Hire in sharing the agency’s new vision for space exploration with the next generation of explorers. Kennedy talked with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.

    NASA Image and Video Library

    2004-02-20

    KENNEDY SPACE CENTER, FLA. - Warren Elly (left), with WTVT-TV, Fox News, talks with Center Director Jim Kennedy at Garland V. Stewart Magnet Middle School, a NASA Explorer School (NES) in Tampa, Fla. Kennedy was joined by astronaut Kay Hire in sharing the agency’s new vision for space exploration with the next generation of explorers. Kennedy talked with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.

  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. 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:

  13. ENZYME ACTION IN ECHINODONTIUM TINCTORIUM ELLIS AND EVERHART

    PubMed Central

    Schmitz, Henry

    1920-01-01

    In Echinodontium tinctorium the presence of the following enzymes was demonstrated: esterase, maltase, lactase, sucrase, raffinase, diastase, inulase, cellulase, hemicellulase, urease, rennet, and catalase. PMID:19871834

  14. Beyond Ellis Island: Hispanics--Immigrants and Americans.

    ERIC Educational Resources Information Center

    National Council of La Raza, Washington, DC.

    This document, divided into five chapters, describes and analyzes the role of Hispanics in American history. Chapter 1 presents an historical overview of Hispanic immigration to the United States, focusing separately on four groups: Mexicans, Puerto Ricans, Cubans, and other Hispanics. Chapter 2 discusses the contributions of Hispanic immigrants…

  15. Jessica Ann Ellis Gold Star Fathers Act of 2010

    THOMAS, 111th Congress

    Sen. Wyden, Ron [D-OR

    2010-07-26

    Senate - 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:

  16. 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.

  17. Induction of 70-kD heat shock protein in scleractinian corals by elevated temperature: significance for coral bleaching.

    PubMed

    Hayes, R L; King, C M

    1995-03-01

    In this study, the induction of the 70-kD family of heat shock proteins (hsp70) has been examined in stony coral tissues. In these experiments, the only difference from control conditions has been exposure to a temperature approximating that at which field bleaching in the Caribbean is known to occur, approximately 30 degrees C or 1 degree-2 degrees C above long-term average seasonal maximum temperatures. A constitutive hsp70 has been identified both in the zooxanthellate (hermatypic) coral, Montastrea annularis, and in two corals lacking symbiotic algae, Tubastrea cocchinea and Astrangia danae (Cnidaria, Anthozoa, Scleractinia). Western blots of experimental tissues fractionated by polyacrylamide gel electrophoresis indicate that the initial induction of hsp70 occurs rapidly, within one hour of transfer to water of elevated temperature. Thereafter, the level of hsp70 decreases within 12-24 hours to approximately the constitutive level. In field-bleached specimens of M. annularis, hsp70 is not detected. Since this coral tissue, once bleached to whiteness, contains no 70-kD heat shock protein, we conclude that the process of coral bleaching might include, among other metabolic alterations, a failed heat shock response. In addition to being compromised in other normal functions, the bleached coral would lose the capacity to protect itself against environmental stress. The eventual loss of algae by bleached coral is likely to be consequent to several metabolic changes in the coral tissue. However, the uncoupling of that symbiotic relation is not concomitant with the initial stress response of heat shock protein synthesis.

  18. 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.

  19. 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.

  20. 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.

  1. 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.

  2. The effect of Hurricane Allen on the Bellairs fringing reef, Barbados

    NASA Astrophysics Data System (ADS)

    Mah, Anmarie J.; Stearn, Colin W.

    1986-01-01

    On August 4, 1980 Hurricane Allen damaged the northern fringing reef located just offshore from the Bellairs Research Institute of McGill University on the west coast of Barbados. During the summer and one winter month of 1981 a resurvey of the reef was done and the results were compared with a similar survey made in 1974. On a reefal scale the changes in the proportion of substrates before and after Hurricane Allen were statistically significant for all substrates and species with the exception of Millepora spp. Among the corals, Porites porites has been most affected by the catastrophe: its coverage was reduced by 96%. The other corals ( Siderastrea sidera, Porites astreoides, Montastrea annularis, and Agaricia agaricites) were reduced by 75 to 25%. Onshore transport is suggested by the high abundance of Acropora cervicornis (20%) and Madracis mirabilis (30%) in the rubble on the fringing reef (the former only grows seaward of the reef). Offshore transport is suggested by the relatively poor representation of Porites porites (32%) in the rubble. Shannon-Weaver diversity indices of the corals dropped from 1.61 to 1.26. The changes in diversity are best explained by the intermediate disturbance hypothesis.

  3. 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.

  4. A mid-twentieth century reduction in tropical upwelling inferred from coralline trace element proxies

    NASA Astrophysics Data System (ADS)

    Reuer, Matthew K.; Boyle, Edward A.; Cole, Julia E.

    2003-05-01

    The Cariaco Basin is an important archive of past climate variability given its response to inter- and extratropical climate forcing and the accumulation of annually laminated sediments within an anoxic water column. This study presents high-resolution surface coral trace element records ( Montastrea annularis and Siderastrea siderea) from Isla Tortuga, Venezuela, located within the upwelling center of this region. A two-fold reduction in Cd/Ca ratios (3.5-1.7 nmol/mol) is observed from 1946 to 1952 with no concurrent shift in Ba/Ca ratios. This reduction agrees with the hydrographic distribution of dissolved cadmium and barium and their expected response to upwelling. Significant anthropogenic variability is also observed from Pb/Ca analysis, observing three lead maxima since 1920. Kinetic control of trace element ratios is inferred from an interspecies comparison of Cd/Ca and Ba/Ca ratios (consistent with the Sr/Ca kinetic artifact), but these artifacts are smaller than the environmental signal and do not explain the Cd/Ca transition. The trace element records agree with historical climate data and differ from sedimentary faunal abundance records, suggesting a linear response to North Atlantic extratropical forcing cannot account for the observed historical variability in this region.

  5. Regional status assessment of stony corals in the US Virgin Islands.

    PubMed

    Fisher, William S; Fore, Leska S; Oliver, Leah M; Lobue, Charles; Quarles, Robert; Campbell, Jed; Harris, Peggy; Hemmer, Becky; Vickery, Sherry; Parsons, Mel; Hutchins, Aaron; Bernier, Kent; Rodriguez, Danny; Bradley, Patricia

    2014-11-01

    States may protect coral reefs using biological water quality standards outlined by the Clean Water Act. This requires biological assessments with indicators sensitive to human disturbance and regional, probability-based survey designs. Stony coral condition was characterized on a regional scale for the first time in the nearshore waters of the US Virgin Islands (USVI). Coral composition, abundance, size, and health were assessed at 66 stations in the St. Croix region in fall 2007 and at 63 stations in the St. Thomas and St. John region in winter 2009. Indicators were chosen for their sensitivity to human disturbance. Both surveys were probability-based (random) designs with station locations preselected from areas covered by hardbottom and coral reef substrate. Taxa richness was as high as 21 species but more than half the area of both regions exhibited taxa richness of <10 species in the 25 m(2) transect area. Coral density was as high as 5 colonies m(-2) but more than half the area of both regions had <2 colonies m(-2). Both regions showed similar dominant species based on frequency of occurrence and relative abundance. Because of large colony sizes, Montastrea annularis provided more total surface area and live surface area than more abundant species. The surveys establish baseline regional conditions and provide a foundation for long-term regional monitoring envisioned by the USVI Department of Planning and Natural Resources. The probabilistic sampling design assures the data can be used in Clean Water Act reporting.

  6. Antagonistic interactions among coral-associated bacteria.

    PubMed

    Rypien, Krystal L; Ward, Jessica R; Azam, Farooq

    2010-01-01

    Reef-building corals are comprised of close associations between the coral animal, symbiotic zooxanthellae, and a diversity of associated microbes (including Bacteria, Archaea and Fungi). Together, these comprise the coral holobiont - a paradigm that emphasizes the potential contributions of each component to the overall function and health of the coral. Little is known about the ecology of the coral-associated microbial community and its hypothesized role in coral health. We explored bacteria-bacteria antagonism among 67 bacterial isolates from the scleractinian coral Montastrea annularis at two temperatures using Burkholder agar diffusion assays. A majority of isolates exhibited inhibitory activity (69.6% of isolates at 25 degrees C, 52.2% at 31 degrees C), with members of the gamma-proteobacteria (Vibrionales and Alteromonadales) being especially antagonistic. Elevated temperatures generally reduced levels of antagonism, although the effects were complex. Several potential pathogens were observed in the microbial community of apparently healthy corals, and 11.6% of isolates were able to inhibit the growth of the coral pathogen Vibrio shiloi at 25 degrees C. Overall, this study demonstrates that antagonism could be a structuring force in coral-associated microbial communities and may contribute to pathogenesis as well as disease resistance.

  7. 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.

  8. 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.

  9. Proposed mission-specific platform drilling on the West Florida Shelf: The depositional response to high frequency sea-level and paleoclimate change on a carbonate ramp

    NASA Astrophysics Data System (ADS)

    Mallinson, D.; Quinn, T.; Hine, A.; Locker, S.; Shinn, E.; Halley, R.; Brooks, G.

    2003-04-01

    Recent investigations reveal that certain geomorphic features on the south and west Florida margin are relict reefs and paleoshorelines that contain significant records of sea level and paleoclimate variations. These features include: (1) The Dry Tortugas (including two relict reefs: Tortugas Bank, and Rileyäs Hump); (2) A deep reef/paleoshoreline complex known as Pulley Ridge; and, (3) The Florida Middle Ground (FMG) relict reef complex. IODP 610-FULL is a mission-specific platform proposal that targets these features and associated depositional sequences. Objectives of this proposal include determining the characteristics, geologic significance, and paleoclimatic/ paleoceanographic history of these Late Pleistocene to Holocene carbonate deposits. All sites have been surveyed using high-resolution seismic, side-scan sonar, and multibeam bathymetry techniques. The Dry Tortugas and Tortugas Bank have been cored using a diver-deployed drill. Multi-decadal sections of unaltered Montastrea annularis were obtained and will provide detailed information on hydrographic conditions in this region during the Holocene. To the northwest, Pulley Ridge consists of low-relief ridges paralleling the continental shelf break at 60 to 80 mbsl. Geophysical and ROV data suggest that Pulley Ridge is a carbonate barrier-island complex that was constructed during MIS 3 and/or MIS 2, and upon which coral communities have been recruited. Further north, the FMG complex parallels the platform margin, and is 60 km long by 15 km wide. Individual banks are 12 to 15 meters high, 2 to 3 km wide, and crest at 25-30 mbsl. Geophysical data suggest that the FMG is early Holocene and may be contemporaneous with Tortugas Bank.

  10. 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.

  11. 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,…

  12. 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.

  13. The role of Ellis-van Creveld 2(EVC2) in mice during cranial bone development.

    PubMed

    Kwon, Edwin K; Louie, Ke'Ale; Kulkarni, Anshul; Yatabe, Marilia; Ruellas, Antonio Carlos de Oliveira; Snider, Taylor N; Mochida, Yoshiyuki; Cevidanes, Lucia H S; Mishina, Yuji; Zhang, Honghao

    2017-09-26

    EvC syndrome is a type of autosomal-recessive chondrodysplasia. Previous case studies in patients suggest abnormal craniofacial development, in addition to dwarfism and tooth abnormalities. To investigate how craniofacial development is affected in EvC patients, surface models were generated from micro-CT scans of control mice, Evc2 global mutant mice and Evc2 neural crest-specific mutant mice. The anatomic landmarks were placed on the surface model to assess the morphological abnormalities in the Evc2 mutants. Through analyzing the linear and angular measurements between landmarks, we identified a smaller overall skull, shorter nasal bone, shorter frontal bone, and shorter cranial base in the Evc2 global mutants. By comparing neural crest-specific Evc2 mutants with control mice, we demonstrated that the abnormalities within the mid-facial regions are not accounted for by the Evc2 mutation within these regions. Additionally, we also identified disproportionate length to width ratios in the Evc2 mutants at all levels from anterior to posterior of the skull. Overall, this study demonstrates a more comprehensive analysis on the craniofacial morphological abnormalities in EvC syndrome and provides the developmental insight to appreciate the impact of Evc2 mutation within the neural crest cells on multiple aspects of skull deformities. This article is protected by copyright. All rights reserved. © 2017 Wiley Periodicals, Inc.

  14. Oral and craniofacial manifestations of Ellis-van Creveld syndrome: Case series.

    PubMed

    Tuna, Elif Bahar; Koruyucu, Mine; Kürklü, Esma; Çifter, Muhsin; Gençay, Koray; Seymen, Figen; Tüysüz, Beyhan

    2016-08-01

    The objective of this case series was to determine the oral, dental and craniofacial features of patients with EvC syndrome. Eight patients with EvC syndrome were enrolled. A complete family history, pedigree analysis, detailed medical history were collected. Findings of clinical examination, including craniofacial and orodental manifestations, and radiological investigations were thoroughly studied. All eight patients had characteristic face, hypertrophic frenulum, conical and peg-shaped teeth, hypodontia of deciduous and/or permanent teeth and also skeletal dysplasia, small chest, short stature and hypoplastic nails. Additionally dysmorphic filtrum, serrated appearance of gingiva, diastema, enamel hypoplasia, microdontia, taurodontism, single rooted permanent molar, delayed eruption and high caries rate were observed with varying degrees. Cephalometric evaluation revealed skeletal Class III growth pattern in four subjects and Class II growth pattern in one subject. Evaluation of craniofacial and orodental anomalies of EvC syndrome is required for accurate differential diagnosis from other congenital syndromes. Copyright © 2016 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

  15. 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.

  16. 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

  17. 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,…

  18. 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…

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

    USDA-ARS?s Scientific Manuscript database

    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...

  20. 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…

  1. "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"…

  2. 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…

  3. 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…

  4. 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…

  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. 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…

  7. Ellis Island: Coming to America: A Drama-in-Education Unit.

    ERIC Educational Resources Information Center

    Gollobin, Laurie Brooks; Gruhn, Laurie Ann

    1991-01-01

    Presents a drama-in-education project for middle school students to experience the dilemmas and choices of immigration to America. Offers four lesson plans and prelesson work which include dramatic techniques, culminate in projects, and promote problem solving, accountability, creative thinking, and group cooperation. (SR)

  8. "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"…

  9. 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…

  10. 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.

  11. 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.

  12. 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.

  13. 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…

  14. 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…

  15. Trophic ecology of Hemigrammus marginatus Ellis, 1911 (Characiformes, Characidae) in a conserved tropical stream.

    PubMed

    Fragoso-Moura, E N; Luiz, T F; Coeti, R Z; Peret, A C

    2017-01-01

    The trophic ecology of ichthyofauna in a stream can be related to the presence or absence of riparian and aquatic vegetation, and mainly resource availability. Therefore, the aim of this study was to analyse the seasonal and ontogenetic variations for the trophic ecology of Hemigrammus marginatus in the Beija-Flor stream located at the Jataí Ecological Station in the municipality of Luiz Antônio-SP, Brazil. In order to attain this objective, the data collections were carried out on a monthly basis from August, 2011 to July, 2012. Fish were collected using a trawl net and bait traps from three collection stations distributed along the Beija-Flor stream. The quality of the water was evaluated by the chemical variables: ammonia, nitrate, total nitrogen, total phosphorus, and physical temperature, dissolved oxygen, pH, turbidity and conductivity, obtained by using a Yellow Springs sonde. The collected specimens were fixed in 10% formalin in the field and were subjected to biometric measurements in the laboratory. The stomachs were weighed and transferred to 70% alcohol and the stomach contents were analysed using a stereomicroscope at the lowest possible taxonomic level. The species was considered insectivorous and the autochthonous food items were the most important during the dry season, mainly from the orders Ephemeroptera and Trichoptera, while allochthonous items from the order Hymenoptera were more important in the wet season. The young individuals' diet was based on the consumption of zooplankton, and insofar as the fish develops, there was a decrease in this item in the diet showing that the species has ontogenetic shifts in its diet. The conservation state of the Beija-Flor stream, as well as the flexibility of using food and food resources provided by aquatic macrophytes and riparian vegetation are key factors for the high abundance of the H. marginatus species.

  16. The incorporation of rare earth elements in modern coral

    NASA Astrophysics Data System (ADS)

    Sholkovitz, Edward; Shen, Glen T.

    1995-07-01

    We report measurements of rare earth elements (REEs) which show that these trace elements are being incorporated in modern coral in proportion to their seawater concentrations. Four Bermuda North Rock coral species, Diploria strigosa, Diploria labyrinthiformis, Montastrea annularis, and Porites astreoides and two Tarawa atoll samples of the species Hydnophora microconos were analyzed by TI-IDMS following cleaning techniques to isolate the lattice-bound REEs. Based on the replicate analyses of the same piece of Diploria strigosa, excellent reproducibility was achieved. The REE/Ca ratios (0.1-3 nmol/mol) of the Bermuda and Tarawa corals are similar to those of Cd/Ca, the trace metal with the lowest seawater concentration used in coral studies. With the exception of Ce, the distribution coefficients (e.g., DNd = [Nd coral/Nd seawater] × [Ca seawater/Ca coral]) between Bermuda coral lattice and Sargasso seawater have fairly flat patterns across the REE series. The values of D range from 1 to 3, like those reported for other trace elements in corals. This suggests, but does not prove, that REEs are incorporated in the aragonite lattice of these corals. The shale-normalized REE patterns of the Tarawa corals also have seawater-like distributions; however, no local seawater data are available to calculate values of D. Two Bermuda species (D. labyrinthiformis and P. astreoides) have values of D for Ce that are high with respect to the D values of La and Nd, implying that there is preferential uptake of Ce into the lattice. This may be related to the fact that Ce is the only REE with an active redox chemistry in seawater. There is considerable interest in using the chemical and isotopic composition of coral as indicators of climatic variations. The combination of REE/Ca ratios and neodymium isotopic composition of coral has the potential to help understand important natural processes. A primary application could be directed toward a tracer for river water discharge in

  17. 75 FR 3705 - Foreign-Trade Zone 113-Ellis County, TX Application for Reorganization Under Alternative Site...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-22

    ....Evans@trade.gov or (202) 482-2350. Dated: January 14, 2010. Andrew McGilvray, Executive Secretary... this time. In accordance with the Board's regulations, Camille Evans of the FTZ Staff is designated... Avenue, NW., via www.trade.gov/ftz . For further information, contact Camille Evans at Washington, DC...

  18. 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.

  19. 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 Constitution...

  20. 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.

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

    DTIC Science & Technology

    1981-12-01

    include the Biddeford and Saco Municipal Sewer Treatment Plants and the treatment plant on Factory Island serving the Saco Tanning Corporation. In...addition to the three major wastewater discharges described above, there is a secondary treatment plant at the Saco Industrial Park which treats 25,000...Biock 20. it diffI~rmt from Rdport) IS. SUPPLEMENTARY NOTES Water Resources Improvement Project 19. KEY WORDS (Cautime m orn . aide #I n.eewy md idmntiy

  2. Production and carbonate dynamics of Halimeda incrassata (Ellis) Lamouroux altered by Thalassia testudinum Banks and Soland ex König

    NASA Astrophysics Data System (ADS)

    Barry, S.; Frazer, T.; Jacoby, C.

    2013-05-01

    Ocean acidification poses a serious threat to a broad suite of calcifying organisms. Scleractinian corals and calcareous algae that occupy shallow, tropical waters are vulnerable to global changes in ocean chemistry because they already are subject to stressful and variable carbon dynamics at the local scale. For example, net heterotrophy increases carbon dioxide concentrations, and pH varies with diurnal fluctuations in photosynthesis and respiration. Few researchers, however, have investigated the possibility that carbon dioxide consumption during photosynthesis by non-calcifying photoautotrophs, such as seagrasses, can ameliorate deleterious effects of ocean acidification on sympatric calcareous algae. Naturally occurring variations in the density of seagrasses and associated calcareous algae provide an ecologically relevant test of the hypothesis that diel fluctuations in water chemistry driven by cycles of photosynthesis and respiration within seagrass beds create microenvironments that enhance macroalgal calcification. In Grape Tree Bay off Little Cayman Island BWI, we quantified net production and characterized calcification for thalli of the calcareous green alga Halimeda incrassata growing within beds of Thalassia testudinum with varying shoot densities. Results indicated that individual H. incrassata thalli were ~6% more calcified in dense seagrass beds. On an areal basis, however, far more calcium carbonate was produced by H. incrassata in areas where seagrasses were less dense due to higher rates of production. In addition, diel pH regimes in vegetated and unvegetated areas within the lagoon were not significantly different, suggesting water exchange and mixing throughout the lagoon. These results suggest that, especially in well-mixed lagoons, carbonate production by calcareous algae may be more related to biotic interactions between seagrasses and calcareous algae than to seagrass-mediated changes in local water chemistry.

  3. 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…

  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. 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.

  6. [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.

  7. 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…

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

    PubMed Central

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

    2011-01-01

    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 (ΦPSII) and the rate of net photosynthesis (AN). During the first seconds of irritation, increased excitation pressure in photosystem II (PSII) was the major contributor to the decreased ΦPSII. 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. PMID:21289078

  9. [Prevalence of sarcopenia in Spanish nursing homes: Comparison of the results of the ELLI study with other populations].

    PubMed

    Salvà, Antoni; Serra-Rexach, José Antonio; Artaza, Iñaki; Formiga, Francesc; Rojano I Luque, Xavier; Cuesta, Federico; López-Soto, Alfonso; Masanés, Ferran; Ruiz, Domingo; Cruz-Jentoft, Alfonso J

    2016-01-01

    The main aim of this study is to assess the prevalence of sarcopenia, according to the criteria of the European Working Group on Sarcopenia in Older People, in men and women living in Spanish nursing homes. Multi-centre study was conducted on ambulatory persons over 69 years old living in nursing homes. Body composition was assessed using bioimpedance analysis, grip strength with a Jamar dynamometer, and gait speed using the 4 metre walk test. Sarcopenia was assessed using the European Working Group on Sarcopenia in Older People criteria (gait speed<0.8m/s; grip strength<30kg in men or 20kg in women, and muscle mass index <8.31kg/m(2) in men or<6.68kg/m(2) in women). The study included 276 subjects with a median age 87.2 years, and with 69% women. Sarcopenia was demonstrated in 37% (15% men, 46% women), 37% had low muscle mass, 86% low gait speed, and 95% low grip strength. Prevalence of sarcopenia increased with advancing age. Both weakness and low gait speed was observed in 90% of individuals with sarcopenia, with 39% of the total having low gait speed, and 38% with weakness. Sarcopenia is a frequent condition in older persons living in nursing homes, especially among women. Most of the cases are severe, with both low muscle strength and physical performance. Although muscle function is altered in 9 out 10 participants, most of them have preserved muscle mass. Copyright © 2016 SEGG. Publicado por Elsevier España, S.L.U. All rights reserved.

  10. 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

  11. National Program for Inspection of Non-Federal Dams. Lake Ellis Dam (MA 00005), Connecticut River Basin, Athol, Massachusetts. Phase I Inspection Report.

    DTIC Science & Technology

    1981-04-01

    TRAPELO ROAD, WALTHAM, MA. 02254 25 14. MONITORING AGENCY NAME & AODRESS(If diffeent Irom ConSMIJin OfIIIe) IS. SECURITY CLASS. (of this reprt ...carried on an active business th.re for some thirty years. ’Eventually financial difficulties overtook Mr. Raymond 3tso and the plant again went under

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

    PubMed

    Yousefi, Naser; Kiani, Mohammad Ali

    2014-01-01

    To compare the effectiveness of rational, behavioral and emotive therapy (REBT) and person-centered therapy (PCT) on self-differentiation and intimacy among divorce clients. 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. 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. 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. None.

  13. 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

  14. 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.

  15. The Effect of Group Counseling Using Ellis's A-B-C Technique on Irrational Beliefs and Self-Efficacy About Breast Self-Awareness of Women Health Volunteers.

    PubMed

    Rouzbeh, Mahnaz; Namadian, Masoumeh; Shakibazadeh, Elham; Hasani, Jafar; Rouzbeh, Robabeh

    2017-08-01

    This preliminary pilot effort assessed the effect of group counseling using A-B-C technique on irrational beliefs and self-efficacy for women health volunteers (WHVs) in breast self-awareness. In this randomized controlled trial, 40 WHVs from three health centers (Abhar, Iran) were randomly allocated into two groups. Seven weekly group counseling sessions were held for the intervention group. Data about cancer fatalism belief, dissatisfaction of body, anxiety, and self-efficacy were collected through validated questionnaires 1 month before and 2 weeks after the intervention. Mean scores of anxiety ( p = .036), body dissatisfaction ( p = .002), cancer fatalism belief ( p ≤ .0001), and self-efficacy ( p ≤ .0001) were improved in the intervention group compared with control group. Group counseling using A-B-C technique was effective in improving irrational beliefs and self-efficacy of the WHVs about breast self-awareness. The findings may help in further development of strategies and cultural programs to improve health-related irrational beliefs.

  16. 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.

  17. 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

  18. The Roles of Attention and (Un)awareness in SLA: Conceptual Replication of N. C. Ellis & Sagarra (2010a) and Leung & Williams (2012)

    ERIC Educational Resources Information Center

    Leow, Ronald P.

    2015-01-01

    There is no doubt that attention and (un)awareness in second/foreign language (L2 learning) are two constructs that have permeated, explicitly or implicitly, second language acquisition (SLA) studies since their inception. Indeed, we have witnessed several empirical studies attempting to probe more deeply into the roles of these two constructs in…

  19. Systematic separation and purification of iridoid glycosides and crocetin derivatives from Gardenia jasminoides Ellis by high-speed counter-current chromatography.

    PubMed

    Wang, Yarong; Chen, Yang; Deng, Liang; Cai, Shining; Liu, Jia; Li, Wenna; Du, Lianfeng; Cui, Guozhen; Xu, Xin; Lu, Tao; Chen, Ping; Zhang, Hao

    2015-01-01

    Iridoid glycosides and crocetin derivatives are the main bioactive components of Gardenia. The processes of separation of these compounds reported in much of the literature are tedious, time consuming and require multiple chromatographic steps, which results in lower recovery and higher costs. To develop a high-speed counter-current chromatography (HSCCC) method for the systematic separation and purification of iridoid glycosides and crocetin derivatives on a preparative scale from Gardenia. After fractionation using HPD100 column chromatography, n-butanol:ethanol:water (10:1:10, v/v) was selected to purify gardenoside, 6β-hydroxy geniposide and geniposidic acid from fraction A; ethyl acetate:n-butanol:water (2:1.5:3, v/v) was used to isolate geniposide from fraction B; crocin-1, crocin-2, crocin-3 and crocin-4 were purified by hexane:ethyl acetate:n-butanol:water (1:2:1:5, v/v) from fraction C. The head-to-tail elution mode was used with a flow rate of 8.0 mL/min and a rotary speed of 600 rpm. After HSCCC isolation, 151.1 mg of gardenoside, 52.2 mg of 6β-hydroxy geniposide and 24.5 mg of geniposidic acid were obtained from 800 mg of fraction A; 587.2 mg of geniposide was obtained from 800 mg of Fraction B; 246.2 mg of crocin-1, 34.2 mg of crocin-2, 24.4 mg of crocin-3 and 24.7 mg of crocin-4 were obtained from 1000mg of fraction C. Their purities were found by UPLC analysis to be 91.7%, 93.4%, 92.5%, 98.2%, 94.1%, 96.3%, 94.1% and 98.9% respectively. The present results demonstrates that the main iridoid glycosides and crocetin derivatives in Gardenia can be obtained efficiently from extracts using HSCCC. Copyright © 2015 John Wiley & Sons, Ltd.

  20. Age of overwash and rate of relative sea-level rise inferred from detrital heads and microatolls of medieval corals at Anegada, British Virgin Islands

    NASA Astrophysics Data System (ADS)

    Jennifer, W.; Feuillet, N.; Robert, H.; Brian, A.; Ten Brink, U. S.; Deschamps, P.; Tuttle, M. P.; Wei, Y.; Fuentes, Z.

    2012-12-01

    Coral boulders deposited on Anegada, an island 120 km south of the Puerto Rico Trench, record overwash dated to AD 1200-1450 and relative sea-level changes that preceded it. Composed largely of Pleistocene limestone, Anegada is less than 8 m above sea level and is fringed on the north and east by a coral reef where Atlantic Ocean waves break. The lowest parts of the island were washed over from the north in AD 1650-1800, as judged from landforms and deposits reported previously (doi:10.1007/s11069-010-9622-6). The coral boulders indicate overwash of higher elevation and earlier age. The boulders were apparently torn from the adjacent reef by a tsunami of nearby origin, as inferred in companion abstracts on geology and modeling. We found the corals scattered in five areas inland from the north shore. Two of the areas show solitary coral heads 1500 m from the reef. The boulders are more numerous in the three other areas, where they are up to 500-700 m from the reef and up to 4 m above sea level. Some were transported over beach ridges or through breaches cut into them. Others are hundreds of meters inland from a modern storm berm. Most rest on the Pleistocene limestone. Many are overturned. Most are broken but few are whole. The largest measured diameter is 2 m and the greatest measured height is 1 m. Most of the boulders are of the brain coral Diploria strigosa, but smaller Porites asteroides and Montastrea annularis are also present. Some of the D. strigosa retain the rounded shape typical of living heads and are dimpled with holes perhaps left by feather-duster worms. The preservation of these features suggests that many of the boulders came ashore alive. We avoided dating a head that shows field evidence for death before transport; an erosional surface cuts across its youngest growth bands and is covered with the remains of encrusting marine organisms. Among the 18 coral boulders dated, 13 form a young group with ages in the range 890±25 to 1020±25 14C yr BP

  1. 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…

  2. 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 ...

  3. 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...

  4. 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…

  5. 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 Airspace...

  6. 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, North...

  7. The Ellis Island Effect: A novel mobile element in a multi-drug resistant Bacteroides fragilis clinical isolate includes a mosaic of resistance genes from Gram-positive bacteria.

    PubMed

    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.

  8. 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

  9. 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

  10. Assessment of Army Contracting Command’s Contract Management Processes

    DTIC Science & Technology

    2010-06-16

    qb=p`elli=lc=_rpfkbpp=C=mr_if`=mlif`v= = - 19 - k^ s ^i=mlpqdo^ar^qb=p`elli= V. Results The Contract Management Maturity Model (CMMM) organizational...ã= do^ar^qb=p`elli=lc=_rpfkbpp=C=mr_if`=mlif`v= = - 63 - k^ s ^i=mlpqdo^ar^qb=p`elli= VIII. Conclusion This paper analyzed the results of contract...Monterey, CA. Juran , J. M. (1988). Juran on planning for quality. New York: MacMillan. Kelman, S . (2001, July 30). Contracting at the core. Retrieved

  11. Contract Management Process Maturity: Empirical Analysis of Organizational Assessments

    DTIC Science & Technology

    2009-08-27

    elli=lc=_rpfkbpp=C=mr_if`=mlif`v - 13 - k^ s ^i=mlpqdo^ar^qb=p`elli= = “Integrated” with other organizational processes that result in synergistic... results will be discussed next. = ^Åèìáëáíáçå=oÉëÉ~êÅÜ=mêçÖê~ã= do^ar^qb=p`elli=lc=_rpfkbpp=C=mr_if`=mlif`v - 21 - k^ s ^i=mlpqdo^ar^qb=p`elli...analysis, the CMMM results can be compared to other contracting enterprises, such as Army Communications Electronics Command CECOM), or Army Tank

  12. 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....

  13. 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...

  14. 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...

  15. 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.

  16. 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...

  17. 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…

  18. 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.…

  19. 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…

  20. 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)

  1. Cedar Grove: An Interdisciplinary Investigation of a Late Caddo Farmstead in the Red River Valley.

    DTIC Science & Technology

    1983-10-31

    assisted Schambach with the ceramics, Skip Grove Baptist Church, was also most helpful in providing Stewart -Abernathy provided assistance on...Cauthrow, Tommy Cheatham, Blan Ellis Jr., Mark Hubbs), Skip Stewart -Abernathy, David Stahle, and Mrs. Blan Ellis Sr., Jay Glen, Norma Hoffrichter, Mark...environmental information was studied, and Arkansas archeology the presence or absence of European contact was assessed Leslie Stewart -Abernathy

  2. 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.…

  3. Measuring the Value Added of Management: A Knowledge Value Added Approach

    DTIC Science & Technology

    2006-12-31

    elli=lc=_rpfkbpp=C=mr_if`=mlif`v= = - 15- k^s^i=mlpqdo^ar^qb=p`elli= Case Example: Ship Tracking Process There are approximately 250K ships at sea ... world -wide at any given point in time. The US military needs to know which are friendly and which are potential foes. The responsibility for tracking

  4. Migration-Related Resources on the World Wide Web.

    ERIC Educational Resources Information Center

    Boyer, Anne

    1999-01-01

    Presents a collection of Web sites with accompanying annotations on migration and immigration that includes, but is not limited to, resources on immigrants' experiences at Angel Island (California), photographs taken at Ellis Island (New York) during the 20th century, and a virtual tour of Ellis Island. (CMK)

  5. 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…

  6. 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

  7. 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…

  8. 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.…

  9. 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…

  10. 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…

  11. 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…

  12. 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…

  13. 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. Copyright © 2016 Elsevier Ltd. All rights reserved.

  14. Validating Grammaticality Judgment Tests: Evidence from Two New Psycholinguistic Measures

    ERIC Educational Resources Information Center

    Vafaee, Payman; Suzuki, Yuichi; Kachisnke, Ilina

    2017-01-01

    Several previous factor-analytic studies on the construct validity of grammaticality judgment tests (GJTs) concluded that untimed GJTs measure explicit knowledge (EK) and timed GJTs measure implicit knowledge (IK) (Bowles, 2011; R. Ellis, 2005; R. Ellis & Loewen, 2007). It has also been shown that, irrespective of the time condition chosen,…

  15. 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.…

  16. 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.

  17. 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

  18. 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.

  19. 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

  20. 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)

  1. 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.

  2. 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,...

  3. Gum biopsy

    MedlinePlus

    ... be sealed off with an electric current or laser. This is called electrocauterization . After the numbness wears ... Images Gum biopsy Tooth anatomy References Ellis E. Principles of differential diagnosis and biopsy. In: Hupp JR, ...

  4. 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)

  5. 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.

  6. 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

  7. 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.

  8. 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)

  9. Hydrology of a part of the Big Sioux drainage basin eastern South Dakota

    USGS Publications Warehouse

    Ellis, Michael J.; Adolphson, Donald G.; West, Robert E.

    1969-01-01

    Data consisting of logs of wells and test holes, waterlevel measurements, chemical analyses of water, stream-runoff measurements, and determinations of the hydrologic properties of aquifers are contained in a separate report by Ellis and Adolphson (1968).

  10. Spin coating of non-Newtonian fluids with a moving front.

    PubMed

    Charpin, J P F; Lombe, M; Myers, T G

    2007-07-01

    We investigate axisymmetric spin coating of power law and Ellis fluids. The flow is driven by centrifugal force, gravity and surface tension. For power law and Ellis models a single equation for the fluid film height is obtained. For a Newtonian fluid the flux only involves linear derivative terms which allows the flux to be easily split for a numerical scheme. For power law and Ellis models the derivatives appear as nonlinear terms. To overcome this we develop an alternative numerical scheme to solve for the film height. Neglecting surface tension and gravity the power law model shows a central spike which is reduced by the introduction of surface tension and gravity. In certain cases the shear thinning power law model predicts slower spreading than the Newtonian model. The Ellis fluid shows no central spike, even for zero surface tension and the film always spreads further than the Newtonian fluid.

  11. Meals on Wheels Association of America

    MedlinePlus

    ... vulnerable seniors it serves. DOWNLOAD THE INFOGRAPHIC MR. PRESIDENT, COME TAKE A RIDE WITH MEALS ON WHEELS ... Blueprint proposing cuts that could effect our programs, President and CEO of Meals on Wheels America Ellie ...

  12. MEW Superfund Area, Mountain View, CA; Notice of Proposed Settlement Agreement and Order on Consent

    EPA Pesticide Factsheets

    This notice announces the availability proposed administrative settlement agreement under CERCLA between the EPA and Warmington Fairchild Associates, LLC, regarding the Middlefield-Ellis-Whisman (MEW) Superfund Area in Mountain View, California.

  13. 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)

  14. 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)

  15. 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)

  16. 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)

  17. Cook County Hospital "from the 19th century straight to the 21st".

    PubMed

    Powell, Richard C

    2004-09-01

    Chicago is home to the nation's oldest public hospital, Cook County Hospital. Once considered Chicago's Ellis Island, the old hospital served countless immigrants, indigents, and uninsured for almost 90 years.

  18. 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

  19. 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...

  20. 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 of...

  1. 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...

  2. 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)

  3. Armored geckos: A histological investigation of osteoderm development in Tarentola (Phyllodactylidae) and Gekko (Gekkonidae) with comments on their regeneration and inferred function.

    PubMed

    Vickaryous, M K; Meldrum, G; Russell, A P

    2015-11-01

    Osteoderms are bone-rich organs found in the dermis of many scleroglossan lizards sensu lato, but are only known for two genera of gekkotans (geckos): Tarentola and Gekko. Here, we investigate their sequence of appearance, mode of development, structural diversity and ability to regenerate following tail loss. Osteoderms were present in all species of Tarentola sampled (Tarentola annularis, T. mauritanica, T. americana, T. crombei, T. chazaliae) as well as Gekko gecko, but not G. smithii. Gekkotan osteoderms first appear within the integument dorsal to the frontal bone or within the supraocular scales. They then manifest as mineralized structures in other positions across the head. In Tarentola and G. gecko, discontinuous clusters subsequently form dorsal to the pelvis/base of the tail, and then dorsal to the pectoral apparatus. Gekkotan osteoderm formation begins once the dermis is fully formed. Early bone deposition appears to involve populations of fibroblast-like cells, which are gradually replaced by more rounded osteoblasts. In T. annularis and T. mauritanica, an additional skeletal tissue is deposited across the superficial surface of the osteoderm. This tissue is vitreous, avascular, cell-poor, lacks intrinsic collagen, and is herein identified as osteodermine. We also report that following tail loss, both T. annularis and T. mauritanica are capable of regenerating osteoderms, including osteodermine, in the regenerated part of the tail. We propose that osteoderms serve roles in defense against combative prey and intraspecific aggression, along with anti-predation functions. © 2015 Wiley Periodicals, Inc.

  4. [Demonstration of the existence of a marine cycle in the strigeides: Cardiocephalus longicollis Szidat, 1928 (Trematoda: Strigeidae)].

    PubMed

    Prevot, G; Bartoli, P

    1980-01-01

    During their investigations on parasitism of fishes and birds in the lagoon of Brusc (Var), the authors have discovered the life cycle of Cardiocephalus longicollis. Cercariae of pharyngeate furcocercous type develop in sporocysts in the digestive gland of the marine prosobranch Nassa corniculum. The cercaria is identified as Cercaria nassae (Dolgikh, 1965) from Nassa reticulata in Black sea; it closely resembles Cercaria nassa (Martin, 1945) from Ilyanassa obsolseta (syn. Nassa obsoleta) at Woods Hole (U.S.A.). Several intermediate hosts have been related; they are the marine fishes Diplodus annularis, D. vulgaris, Boops salpa, Pagellus mormyrus (Sparidae) and Belone belone (Scombresocidae). Metacercariae of tetracotyle type were found in the cavity of optical lobes of the brain. Experimental contamination of fishes: Potamoschistus microps, Blennius sp., Mugil cephalus and Syngnathus abaster has been negative; that of Diplodus annularis and D. sargus, positive. It allowed to follow the development from cercaria to tetracotyle. In Provence natural definitive hosts are Larus argentatus and L. ribidundus; contaminations of these birds with metacercariae experimentally raised in Diplodus annularis and D. vulgaris were successfull. Some observations are pointed out especially the development of the parasite in the definitive host, the organisation of tribocytic organ and the geographical distribution of the parasite.

  5. Green Acquisition Gap Analysis of the United States Air Force Operational Contracting Organizations

    DTIC Science & Technology

    2011-11-10

    the leading Air Force installations through our extensive research and collaboration with key leadership. 15. SUBJECT TERMS 16. SECURITY...p`elli=lc=_rpfkbpp=C=mr_if`=mlif`v = k^s^i=mlpqdo^ar^qb=p`elli The research presented in this report...Acquisition Research or to become a research sponsor, please contact: NPS Acquisition Research Program Attn: James B. Greene, RADM, USN, (Ret

  6. 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

  7. 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

  8. 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

  9. 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

  10. Observations on Bubble Dynamics at High Pressures and Bubble Dynamics in Stagnation Flow.

    DTIC Science & Technology

    1982-11-30

    the equation becomes the familiar the stagnation region where their unusually Rayleigh equation . high translational velocity created conditions for...35 MPa (10.000 ft bore-hole depth). Radius-time curves showed fairly good agreement vith the classical theory of Lord Rayleigh even above the 22 .Pa...by many investigators including Naude and Ellis [I", Senjamin and Ellis [21, F.P. Dowden [31, Plesset and Chapman [14] and more recently, Voinov and

  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. Joint-Base Contracting: A Comparative Analysis of Joint-Base Contracting Activities Between Services

    DTIC Science & Technology

    2011-11-09

    change despite the environmental changes happening within an organization, specifically in M&As ( Hofstede , Neuijen, Ohayv, & Sanders, 1990...qb=p`elli= (Buono & Bodwitch, 1989; Buono et al., 1985; Creasy et al., 2009; Hofstede et al., 1990; Sales & Mirvis, 1984; Weber & Camerer, 2003...k^s^i=mlpqdo^ar^qb=p`elli= Government Purchase Card (GPC) transition plan, the cost performance visibility framework , and guidance and instructions

  13. Natural human Plasmodium infections in major Anopheles mosquitoes in western Thailand.

    PubMed

    Sriwichai, Patchara; Samung, Yudthana; Sumruayphol, Suchada; Kiattibutr, Kirakorn; Kumpitak, Chalermpon; Payakkapol, Anon; Kaewkungwal, Jaranit; Yan, Guiyun; Cui, Liwang; Sattabongkot, Jetsumon

    2016-01-13

    The Thai-Myanmar border is a remaining hotspot for malaria transmission. Malaria transmission in this region continues year-round, with a major peak season in July-August, and a minor peak in October-November. Malaria elimination requires better knowledge of the mosquito community structure, dynamics and vectorial status to support effective vector control. Adult Anopheles mosquitoes were collected using CDC light traps and cow bait in 7 villages along the Thai-Myanmar border in January 2011 - March 2013. Mosquitoes were determined to species by morphological characters. Plasmodium-positivity was determined by circumsporozoite protein ELISA. The 2986 Anopheles mosquitoes collected were assigned to 26 species, with Anopheles minimus sensu lato (s.l.) (40.32%), An. maculatus s.l. (21.43%), An. annularis s.l. (14.43%), An. kochi (5.39%), An. tessellatus (5.26%), and An. barbirostris s.l. (3.52%) being the top six most abundant species. Plasmodium-infected mosquitoes were found in 22 positive samples from 2906 pooled samples of abdomens and heads/thoraxes. Four mosquito species were found infected with Plasmodium: An. minimus s.l., An. maculatus s.l., An. annularis s.l. and An. barbirostris s.l. The infectivity rates of these mosquitoes were 0.76, 0.37, 0.72, and 1.74%, respectively. Consistent with a change in malaria epidemiology to the predominance of P. vivax in this area, 20 of the 22 infected mosquito samples were P. vivax-positive. The four potential vector species all displayed apparent seasonality in relative abundance. While An. minimus s.l. was collected through the entire year, its abundance peaked in the season immediately after the wet season. In comparison, An. maculatus s.l. numbers showed a major peak during the wet season. The two potential vector species, An. annularis s.l. and An. barbirostris s.l., both showed peak abundance during the transition from wet to dry season. Moreover, An. minimus s.l. was more abundant in indoor collections, whereas An

  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. Phosphorus in Hermatypic Coral Skeleton: Incorporation Mechanisms and a Potential Seawater Phosphate Proxy

    NASA Astrophysics Data System (ADS)

    Lavigne, M. G.; Sherrell, R. M.; Linsley, B. K.; Desenfant, F.

    2006-12-01

    Records of surface water nutrient availability with sub-seasonal resolution would provide crucial evidence in understanding the effects of annual to centennial scale climate variability on oceanic primary production. A direct coral proxy for seawater phosphate would complement low resolution records from established but quantitatively uncertain indirect proxies such as planktonic foraminiferal Cd/Ca. Very recently, Montagna et al. (2006) suggested that LA-ICP-MS measurements of P/Ca in deep sea corals could be used to reconstruct deep water phosphate, although the unknown phosphorus incorporation mechanism adds uncertainty to this emerging proxy.1 Our group is investigating the chemical form and incorporation mechanism for phosphorus in the hermatypic corals Montastrea faveolata (Martinique, Caribbean) and Porites lutea (Rarotonga, South Pacific) using laser ablation and solution phase ICP-MS techniques. We have well calibrated analyses of cleaned and uncleaned micro-drilled samples for a number of trace elements including P by solution phase HR-ICP-MS in Caribbean Montastrea coral. We have also analyzed the Rarotonga Porites coral by LA-ICP-MS resulting in high resolution (~ bi-weekly) phosphorus data over ~ 2.5 years. Phosphorus was resistant to rigorous solution cleaning of the drilled Martinique coral samples. This suggests incorporation largely in inorganic lattice-bound sites rather than as residual organic P or in association with Fe- Mn oxides. High skeletal P/Ca values are found just under the growing surface in the Martinique coral, decreasing exponentially within several millimeters, suggesting that organic P is remineralized quickly, leaving the residual ~constant signal. Both of these corals from the upper 20m had lower P/Ca than deep sea corals (100 - 1200 μmol/mol)1, and the mean P/Ca in Rarotonga Porites (~46 μmol/mol) is higher than in the Martinique Montastrea (18 μmol/mol). Both observations are consistent with the increase in PO4 with depth

  16. Micromorphology and Trace Metal Content as Indicators of Bleaching in Skeletons of Modern and Holocene Corals

    NASA Astrophysics Data System (ADS)

    Burr, S. A.

    2005-05-01

    Morphology and trace metal content of scleractinian corals have previously been used as proxies for past environmental conditions, but no proxy for the health of ancient corals currently exists. Skeletal material associated with bleached and non-bleached tissue from Recent Porites divaricata and Montastrea franksii were analyzed with SEM and ICPAES. Both morphology and trace metal content differed between skeletal material associated with bleached and non-bleached tissue in P. divaricata. SEM analysis showed skeletal corallites associated with unbleached tissue had well-defined septal and columellar denticles. Skeletal corallites associated with bleached tissue had weakly-defined denticles, many appearing rudimentary. SEM analysis was inconclusive for morphological differences between samples known to have been bleached and non-bleached in M. franksii. Significantly higher trace metal/Ca ratios were found with ICPAES for Ag, As, Cd, and Co between skeletal material associated with bleached than with non-bleached tissue in P. divaricata, and Ag, As, P, and Zn between skeletal material associated with bleached than with non-bleached tissue in M. franksii. The presence of these differences suggested the processes of skeletogenesis and the uptake and deposition of trace metals in the scleractinian skeleton were affected by bleaching. Mid-Holocene (~5,000 ybp) Porites sp. were tested to determine if such indicators of bleaching might be observed in the fossil record. Skeletal morphology and trace metal content differ between Recent bleached and non-bleached Porites divaricata from Punta Cana, Dominican Republic, trace metal content differs between bleached and non-bleached Montastrea franksii from Looe Key, FL. It is possible that these indicators allow the recognition of coral bleaching in the fossil record

  17. [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

  18. 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

  19. Concentration of Inorganic Elements Content in Benthic Seaweeds of Fernando de Noronha Archipelago by Synchrotron Radiation Total Reflection X-Ray Fluorescence Analysis (SRTXRF)

    PubMed Central

    Ferreira, Leandro De Santis; Lopes, Rosana Peporine; Ulbrich, Mabel Norma Costas; Guaratini, Thais; Colepicolo, Pio; Lopes, Norberto Peporine; Garla, Ricardo Clapis; Oliveira Filho, Eurico Cabral; Pohlit, Adrian Martin; Zucchi, Orghêda Luiza Araújo Domingues

    2012-01-01

    SRTXRF was used to determine As, Ba, Br, Ca, Co, Cr, Cs, Cu, Dy, Fe, K, Mn, Mo, Ni, Pb, Rb, Sr, Ti, V, and Zn in eleven seaweed species commonly found in Fernando de Noronha: Caulerpa verticillata (J. Agardh) (Chlorophyta), Asparagopsis taxiformis (Delile), Dictyurus occidentalis (J. Agardh), Galaxaura rugosa (J. Ellis & Solander) J. V. Lamouroux, G. obtusata (J. Ellis & Solander) J. V. Lamouroux, G. marginata (J. Ellis & Solander) J. V. Lamouroux (Rhodophyta), Dictyota cervicornis (Kützing), Dictyopteris justii (J. V. Lamouroux), Dictyopteris plagiogramma (Montagne) Vickers, Padina gymnospora (Kützing) Sonder, and a Sargassum sp. (Phaeophyta). Data obtained were compared to those from the analysis of other parts of the world seaweeds using different analytical techniques and were found to be in general agreement in terms of major and minor elemental components. Results provide baseline information about the absorption and accumulation of these elements by macroalgae in the area. PMID:22505917

  20. Concentration of Inorganic Elements Content in Benthic Seaweeds of Fernando de Noronha Archipelago by Synchrotron Radiation Total Reflection X-Ray Fluorescence Analysis (SRTXRF).

    PubMed

    Ferreira, Leandro De Santis; Lopes, Rosana Peporine; Ulbrich, Mabel Norma Costas; Guaratini, Thais; Colepicolo, Pio; Lopes, Norberto Peporine; Garla, Ricardo Clapis; Oliveira Filho, Eurico Cabral; Pohlit, Adrian Martin; Zucchi, Orghêda Luiza Araújo Domingues

    2012-01-01

    SRTXRF WAS USED TO DETERMINE AS, BA, BR, CA, CO, CR, CS, CU, DY, FE, K, MN, MO, NI, PB, RB, SR, TI, V, AND ZN IN ELEVEN SEAWEED SPECIES COMMONLY FOUND IN FERNANDO DE NORONHA: Caulerpa verticillata (J. Agardh) (Chlorophyta), Asparagopsis taxiformis (Delile), Dictyurus occidentalis (J. Agardh), Galaxaura rugosa (J. Ellis & Solander) J. V. Lamouroux, G. obtusata (J. Ellis & Solander) J. V. Lamouroux, G. marginata (J. Ellis & Solander) J. V. Lamouroux (Rhodophyta), Dictyota cervicornis (Kützing), Dictyopteris justii (J. V. Lamouroux), Dictyopteris plagiogramma (Montagne) Vickers, Padina gymnospora (Kützing) Sonder, and a Sargassum sp. (Phaeophyta). Data obtained were compared to those from the analysis of other parts of the world seaweeds using different analytical techniques and were found to be in general agreement in terms of major and minor elemental components. Results provide baseline information about the absorption and accumulation of these elements by macroalgae in the area.

  1. 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

  2. Marines vs. Contractors: An Analysis of a Supply Outsourcing Initiative and Its Impact on Cost and Efficiency

    DTIC Science & Technology

    2011-11-06

    Marine Corps. For example, the T/O for MWSS -372 at Camp Pendleton, California, matches the T/O for MWSS - 272 at Marine Corps Air Station (MCAS) in New...Training Center = = ^Åèìáëáíáçå=oÉëÉ~êÅÜ=mêçÖê~ã= do^ar^qb=p`elli=lc=_rpfkbpp=C=mr_if`=mlif`v - xiii - k^s^i=mlpqdo^ar^qb=p`elli= MWSS Marine...39. Headquarters element for several aviation squadrons at Camp Pendleton. MWSS -372: Marine Wing Support Squadron-372. Supporting element for

  3. Strategic Landpower and a Resurgent Russia: An Operational Approach to Deterrence

    DTIC Science & Technology

    2016-05-01

    of: U.S. European Command and U.S. Army Europe R. Reed Anderson Patrick J. Ellis Antonio M. Paz Kyle A. Reed Lendy “Alamo” Renegar John T. Vaughan...European Command and U.S. Army Europe R. Reed Anderson Patrick J. Ellis Antonio M. Paz Kyle A. Reed Lendy “Alamo” Renegar John T. Vaughan May 2016 The...Webster University. xiii LIEUTENANT COLONEL (LTC) ANTONIO M. PAZ was commissioned through the Reserve Officer Train- ing Corps program at San Jose State

  4. 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

  5. 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

  6. System-of-Systems Acquisition: Alignment and Collaboration

    DTIC Science & Technology

    2011-10-11

    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...of Engineering & Applied Sciences Dr. John S . Osmundson, Associate Research Professor Graduate School of Operational & Information Sciences Dr. Rene...5c. PROGRAM ELEMENT NUMBER 6. AUTHOR( S ) 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME( S ) AND ADDRESS(ES

  7. Software Hardware Asset Reuse Enterprise (SHARE) Repository Framework Final Report: Component Specification and Ontology

    DTIC Science & Technology

    2008-09-30

    MDAPs = ^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= = Human Resources  Learning... resource discovery objectives in the Global Information Grid context. Keywords: Software Reuse, Software repository, Component Specification, Ontology...International Resource Identifier ISO International Organization for Standardization IWS Integrated Warfare Systems KSLOC Thousands of Source Lines of Code

  8. 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

  9. 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.

  10. 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

  11. 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.

  12. Mercury contamination in human hair and some marine species from Sfax coasts of Tunisia: levels and risk assessment.

    PubMed

    Mezghani-Chaari, Sawssan; Hamza, A; Hamza-Chaffai, A

    2011-09-01

    The aim of this study was to measure the mercury (Hg) contents of three marine fish and common seafood species (Diplodus annularis, Sarpa salpa and Sepia officinalis) at two sampling sites in the gulf of Gabes, i.e. Sidi Mansour (polluted site) and Kerkennah (control site). These species are frequently consumed by the population living at the Sfax coasts of Tunisia, particularly by the families of fisherman. Additionally, the hair mercury levels of 55 volunteers (28 women, 27 men) were analysed and the daily total mercury intake through the fish and seafood diet was estimated. The key findings were: (1) the mercury contents of the examined fish and seafood species frequently exceeded the regulatory guideline value of 0.5 mg/kg, (2) no site-specific differences in hair mercury contents were found, (3) fish and seafood consumption is probably the major contributor of mercury exposure in this population, (4) the daily mercury intake through frequent consumption of D. annularis exceeds the US EPA reference dose. Further studies are necessary to evaluate the health risks associated with such high mercury exposure levels in order to allow optimal counseling and therapy of the concerned population and to avoid future impairment of human health, particularly children's health.

  13. 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

  14. Reef endemism, host specificity and temporal stability in populations of symbiotic dinoflagellates from two ecologically dominant Caribbean corals.

    PubMed

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

    2009-07-15

    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. 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. 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.

  15. Relative importance of estuarine nurseries for species of the genus Diplodus (Sparidae) along the Portuguese coast

    NASA Astrophysics Data System (ADS)

    Vinagre, C.; Cabral, H. N.; Costa, M. J.

    2010-01-01

    The relative importance of estuarine nursery areas for species of the genus Diplodus and their relations with several environmental variables was evaluated along the Portuguese coast. Nine estuarine systems were sampled with beam trawl surveys. Species of the genus Diplodus were only present in estuaries south of the Ria de Aveiro (40°38'). A latitudinal gradient of increasing species richness and abundance towards the south was found. Estuarine nurseries of Diplodus vulgaris, Diplodus sargus and Diplodus puntazzo were characterized by mud substrate, lower salinity and lower dissolved oxygen, with the exception of Ria Formosa. Diplodus bellottii was associated with estuaries with large areas and high volumes, the Tejo and the Sado. Diplodus bellottii nursery grounds were characterized by low depth. Diplodus annularis was associated with seagrass and saltmarsh habitats, certainly because it is the only species of the genus Diplodus which recruits exclusively to seagrass meadows. Diplodus annularis nursery grounds were also characterized by sand substrate, higher salinity and higher dissolved oxygen. Niche breath varied widely amongst species and location. Diplodus vulgaris generally presented the highest values of niche breath, except when D. bellottii was present. Niche overlap was not high, the highest value being that between D. vulgaris and D. sargus in the Mira estuary, with 76% spatial niche overlap. Considerations were made on these species progress towards the north in a climate warming context, taking into account the habitat associations described here.

  16. 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

  17. Does morphology predict trophic niche differentiation? Relationship between feeding habits and body shape in four co-occurring juvenile species (Pisces: Perciformes, Sparidae)

    NASA Astrophysics Data System (ADS)

    Ventura, Daniele; Bonhomme, Vincent; Colangelo, Paolo; Bonifazi, Andrea; Jona Lasinio, Giovanna; Ardizzone, Giandomenico

    2017-05-01

    Feeding habits, diet overlap and morphological correlates of four juvenile species of the genus Diplodus were investigated during their settlement periods, along the Tyrrhenian coast. Stomach content analysis showed that the diets of D. sargus and D. puntazzo mainly comprised benthic prey such as harpacticoid copepods, amphipods and polychaetes. On the other hand, D. vulgaris and D. annularis fed mainly on planktonic prey such as ciclopoids, calanoids copepods and fish larvae. A biologically significant diet overlap, calculated using the Schoener index, was recorded between D. sargus and D. puntazzo and between D. vulgaris and D. annularis. Morphological characters related to feeding such as gape height and gut length with their relative growth patterns suggested that different trophic preferences have led to a morphological diversification of feeding structures. Therefore, a geometric morphometric outline method, namely Elliptic Fourier Analysis (EFA) was used to examine shape modification of the head and body regions. The multivariate analyses performed on shape descriptors demonstrated that the four species were morphologically distinct due to different feeding habits: the two species which feed mainly on benthic prey presented a discoidal shape, with broad profiles and rounded head; by contrast, the other two species which relied mostly on planktonic prey, presented a streamlined and more elongated body shape.

  18. Fine structure analysis of black band disease (BBD) infected coral and coral exposed to the BBD toxins microcystin and sulfide.

    PubMed

    Miller, Aaron W; Richardson, Laurie L

    2012-01-01

    Black band disease (BBD) of corals is a complex pathogenic polymicrobial mat community that lyses coral tissue as it migrates over an infected colony. Two known toxins are produced by BBD microorganisms - sulfide, produced by sulfate-reducing bacteria, and microcystin, produced by cyanobacteria. Experiments were carried out to determine the effects of exposing healthy coral fragments to variable concentrations of purified microcystin, sulfide at a concentration known to exist in BBD, and a combination of the two. Healthy fragments of the coral Montastraea annularis were placed into experimental chambers with known toxin/s for 18-22.5 h. Fine structural analysis using scanning electron microscopy (SEM) showed that toxin exposure resulted in thinning or removal of the coral epidermal layer coupled with degradation of the gastrodermis. These effects were exacerbated when both toxins were used in combination. Exposure to sulfide and the highest concentration of microcystin caused zooxanthellae to dissociate from the coral tissue and to form clusters on the coral surface. Examination of coral fragments infected with BBD was carried out for comparison. It was determined that the effects of exposure to sulfide and microcystin on coral fine structure were consistent, both quantitatively and qualitatively, with the effects of artificially induced and naturally occurring BBD on M. annularis. Copyright © 2011 Elsevier Inc. All rights reserved.

  19. 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.

  20. 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.

  1. 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

  2. Equilibrium relative humidity as a tool to monitor seed moisture

    Treesearch

    Robert P. Karrfalt

    2010-01-01

    The importance of seed moisture in maintaining high seed viability is well known. The seed storage chapters in the Tropical Tree Seed Manual (Hong and Ellis 2003) and the Woody Plant Seed Manual (Bonner 2008a) give a detailed discussion and many references on this point. Working with seeds in an operational setting requires a test of seed moisture status. It is...

  3. 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…

  4. 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.

  5. 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…

  6. 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…

  7. 75 FR 70763 - Texas Disaster #TX-00363

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-18

    ... ADMINISTRATION Texas Disaster TX-00363 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Texas dated 11/09/2010... Counties: Texas: Bastrop, Burnet, Coryell, Dallas, Denton, Ellis, Falls, Johnson, Lampasas, Lee, Mclennan...

  8. 78 FR 33464 - Texas Disaster #TX-00405

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-04

    ... ADMINISTRATION Texas Disaster TX-00405 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Texas dated 05/29/2013... adversely affected by the disaster: Primary Counties: Ellis, Hood, Johnson. Contiguous Counties: Texas...

  9. 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…

  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. 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,…

  12. 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…

  13. 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…

  14. 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

  15. 76 FR 55702 - National Register of Historic Places; Notification of Pending Nominations and Related Actions

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-08

    ..., MPS) Roughly bounded by Terry St., Ward Ave., Ellis St. & Darby Ave., Fort Smith, 11000693 Washington... Washington County Smith, E.L., Roundhouse Granite Shed, 23 Burnham Meadows, Barre, 11000704 Request for REMOVAL has been made for the following resources: ARKANSAS Howard County Boyd, Adam, House E. of Center...

  16. 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...

  17. 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…

  18. 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…

  19. 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

  20. The Financial Impact of Shipbuilding Claims upon Litton Industries

    DTIC Science & Technology

    1978-09-01

    labor costs subject to escala - tion adjustment while 65% of the target price provided mate- rial cost adjustments. These costs were apportioned by...3. Gardner, Ellis B. , President Ingalls Shipbuilding Division, Letter to R. L. Ash and S. M. Rosenberg , Litton Industries, Subject: Opportunities , 6

  1. 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

  2. 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

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

    USDA-ARS?s Scientific Manuscript database

    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. 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,…

  5. 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...

  6. 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)

  7. 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…

  8. 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…

  9. 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…

  10. 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…

  11. Natal teeth in an infant with congenital hypothyroidism.

    PubMed

    Venkatesh, C; Adhisivam, B

    2011-01-01

    Teeth erupting at birth are referred to as natal teeth. It is a common and benign finding in the neonatal period. However, they may be associated with genetic syndromes like Ellis Van Creveld syndrome and Hallermann-Streiff syndrome. We report here a case of natal teeth in an infant with congenital hypothyroidism.

  12. 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…

  13. 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…

  14. 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...

  15. Developing Systems Engineering Experience Accelerator (SEEA) Prototype and Roadmap Increment 4

    DTIC Science & Technology

    2017-08-08

    of multimedia . In Learning with Technology, Pearce, J., & Ellis, A. (Eds.). Parkville, Vic: University of Melbourne, 235-262. Herz, J. C...32 Task 4 – Validation of Research Hypothesis via Learning Evaluation... Learning Evaluation Design and Data Collection ............................................................................ 33 Data Analysis and

  16. Design and Development Tools for the Systems Engineering Experience Accelerator - Part 3

    DTIC Science & Technology

    2017-04-29

    Implications for the instructional design of multimedia . In Learning with Technology, Pearce, J., & Ellis, A. (Eds.). Parkville, Vic: University of Melbourne... Learning and the Systems Engineering Experience Accelerator .....................................2 Development Process for Learning Experiences...Integration Testing ............................................................................................. 17 Learning Assessment Tools

  17. 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 96712...

  18. 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 Leader...

  19. 76 FR 78939 - James Campbell National Wildlife Refuge, Honolulu County, HI; Final Comprehensive Conservation...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-20

    ... Fish and Wildlife Service James Campbell National Wildlife Refuge, Honolulu County, HI; Final... Highway, Room 2C, Hale`iwa, HI 96712. In-Person Viewing or Pickup: O`ahu National Wildlife Refuge Complex, 66-590 Kamehameha Highway, Room 2C, Hale`iwa, HI 96712. FOR FURTHER INFORMATION CONTACT: David Ellis...

  20. 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)…

  1. 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…

  2. 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)

  3. A Prosodically Controlled Word and Nonword Repetition Task for 2- To 4-Year-Olds: Evidence from Typically Developing Children.

    ERIC Educational Resources Information Center

    Roy, Penny; Chiat, Shula

    2004-01-01

    An association has been found between nonword repetition and language skills in school-age children with both typical and atypical language development (C. Dollaghan & T. F. Campbell, 1998; S. Ellis Weismer et al., 2000; S. E. Gathercole & A. D. Baddeley, 1990; J. W. Montgomery, 2002). This raises the possibility that younger children's repetition…

  4. 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)

  5. Critical Thinking and Rational Emotive Behavior Therapy.

    ERIC Educational Resources Information Center

    Hatcher, Donald; Brown, Tony; Gariglietti, Kelli P.

    2001-01-01

    Notes limitations of Rational Emotive Behavior Therapy (REBT). Suggests that should these weaknesses be addressed, teachers of critical thinking would do well to incorporate REBT into their critical thinking courses. Relates that A. Ellis has suggested that the future of REBT is in integrating it into the educational curriculum as a way of…

  6. If You Want to Feel Better--Try Thinking Better.

    ERIC Educational Resources Information Center

    Rogers, George W., Jr.

    This article briefly describes Rational Emotive or Rational Behavior Therapy. Some historical data is given regarding its developer, Dr. Albert Ellis, and his beliefs. In addition the following rational concepts are examined: (1) the anatomy of an emotion; (2) the characteristics of rational thoughts; and (3) the rational self-analysis of…

  7. 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…

  8. An oscillating universe?

    NASA Astrophysics Data System (ADS)

    Hill, C. T.

    The remarkable feature of the pencil-beam redshift survey recently reported by Broadhurst, Ellis, Koo and Szalay is a periodicity in the galaxy distribution with period 128 h-1Mpc. Might the apparent spatial periodicity really be an observational effect induced by spatially uniform but temporally oscillating physical "constants" of nature?

  9. 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…

  10. Tropical Cyclone Report, 1990.

    DTIC Science & Technology

    1990-01-01

    BRENDAN BOBBIE COLLEEN CECIL CAITLIN CHUCK DAN DOT DOUG DEANNA ELSIE ED ELLIE ELI FORREST FLO FRED FAYE GAY GENE GLADYS GARY HUNT HATTIE HARRY HELEN...tence and Climatology) ACFT Aircraft COSM or HR Hour(s) COSMOS Cyclops Objective Steering ADP Automated Data Processing Model Output Statistics ICAO

  11. 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;…

  12. Direct Instruction in Second Language Acquisition: A Critical Review of Related Literature

    ERIC Educational Resources Information Center

    Hernandez, Hjalmar Punla

    2017-01-01

    Second Language Acquisition (SLA), as a sub-discipline in applied linguistics, is rapidly growing and changing (Ellis & Shintani, 2014). As such, it has yielded stirring issues on both naturalistic and instructed settings causing reviews and/or investigations by language researchers. This paper accordingly serves as a humble attempt at…

  13. Species of the Mississippi River Headwaters Reservoirs Region.

    DTIC Science & Technology

    1976-07-01

    AMERICAN GOLDEN PLOVER, BLACK 5ELLIED PLOVER, PIPING PLOVER, SEMI PALMATED POOR-WILL PORCUPINE PRAIRIE CHICKEN, GREATER PUMA RABBIT, EASTERN...WARBLER, BLACK-THROATED BLUE WARBLER, BLACK THROATED GREEN WARBLER, CANADA WARBLER, CAPE MAY WARBLER, CERULEAN WARBLER, CHESTNUT SIDED WARBLER

  14. 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…

  15. 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…

  16. Excited-State Processes of Relevance to Photoelectrochemistry.

    DTIC Science & Technology

    1983-07-26

    Processes of Relevance to Photoelectrochemistry by Arthur B. Ellis Prepared for Publication in Journal of Chemical Education C) Department of Chemistry...STATEMENT (of Ute abstelct erod in Block 20. II dllotent from Repot) Is. SUPPLEMENTARY NOTES Prepared for publication in Journal of Chemical Education I

  17. 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…

  18. 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…

  19. Film Study in Higher Education.

    ERIC Educational Resources Information Center

    Stewart, David C., Ed.

    This resource book on the place of film study today is designed to assist in the planning of college courses in the history, criticism, and appreciation of motion pictures. Representative course descriptions and appraisals are given by (1) Jack C. Ellis, who describes a two-part course in film aesthetics and types of films, (2) Edward Fischer, who…

  20. 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);…

  1. 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…

  2. Representation and Transfer in Problem Solving

    DTIC Science & Technology

    1988-09-01

    AFOSR, Boiling AFB, Washington, DC 20332 Or. Stephanie Dean, Code 6021, Naval Air Development Center, Warminster, PA 18974-5000 Col. Shomro Dover...Institute for Child Study, University of Maryland, College Perk , MD 20742 Dr. John Ellis, Navy Personnel RID Center, San Diego, CA 92252 Dr. Jeffrey Elman

  3. 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…

  4. 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…

  5. 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)

  6. Transformative Colloidal Nanomaterials for Mid- Infrared Devices

    DTIC Science & Technology

    2015-06-11

    THE ABOVE ADDRESS. University of Chicago 5801 South Ellis Avenue Chicago , IL 60637 -5418 30-Jun-2014 ABSTRACT Number of Papers published in peer...graduate in the Fall 2013. The grant also supported John Koehler, a Physics BS graduate from the University of Chicago who worked as a technical

  7. 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…

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

    USDA-ARS?s Scientific Manuscript database

    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...

  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. A Continuation of the Dialogue on Issues in Counseling in the Postmodern Era.

    ERIC Educational Resources Information Center

    Ellis, Albert

    2000-01-01

    This is a continuation of the dialogue among Albert Ellis, Jeffrey T. Guterman, Earl Ginter, Sandra A. Rigazio-DiGilio, Allen E. Ivey, and Don C. Locke that has been appearing in the Journal of Mental Health Counseling on ethical issues of counseling in the postmodern era. Specifically addresses the ethical, constructivist, multicultural, and…

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

    USDA-ARS?s Scientific Manuscript database

    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...

  13. 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 ...

  14. 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 ...

  15. The Intimate Correlation of Invitational Education and Effective Classroom Management

    ERIC Educational Resources Information Center

    Riner, Phillip S.

    2003-01-01

    Critics of Invitational Education and other self-concept approaches to learning have long argued that there is a lack of empirical data to support the claims that approaches to student instruction based on self-concept theory are central to effective learning. Ellis (2001) examines a number of these analyses where self-concept, self-esteem, and…

  16. 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…

  17. 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…

  18. 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…

  19. 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.…

  20. Opportunities in Power Projection and Integrated Defense

    DTIC Science & Technology

    2012-10-01

    Manager Mr. Peter A. Morrison ARTIST CONCEPTUAL IMAGES Solid State Laser Technology Maturation Railgun Technology Provides:  Electromagnetic Railgun ...Electromagnetic Railgun Program Manager Mr. Roger Ellis Railgun Technologies EM Railgun World Record Shot Capacitor Pulsed Power...systems and future railgun systems Warfighter Payoff:  Multi-mission capability  Multi-platform application  NSFS ranges – at least double

  1. 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…

  2. Using Stories in English Omani Curriculum

    ERIC Educational Resources Information Center

    Al Harrasi, Kothar Talib Sulaiman

    2012-01-01

    Learning a FL [foreign language] may be frustrating for some young learners; however, integrating fun in learning would encourage them to develop positive attitudes towards learning a language (Ellis & Brewster, 1991). Stories are an effective and enthusiastic technique in teaching young learners; they inject lots of amusement and help…

  3. 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

  4. 75 FR 57440 - Performance Review Board Membership

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-21

    ... Professional Performance Management Systems: William G. Bostic, Jr., Brian Callahan, Nancy M. Gordon, Howard R..., Nancy A. Potok, Obie G. Whichard, James K. White. FOR FURTHER INFORMATION CONTACT: Latasha Ellis, 301-763-3727. Dated: September 9, 2010. James K. White, Associate Under Secretary for Management, Chair...

  5. 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...

  6. Ring-down gravitational waves and lensing observables: How far can a wormhole mimic those of a black hole?

    NASA Astrophysics Data System (ADS)

    Nandi, Kamal K.; Izmailov, Ramil N.; Yanbekov, Almir A.; Shayakhmetov, Azat A.

    2017-05-01

    It has been argued that the recently detected ring-down gravity waveforms could be indicative only of the presence of light rings in a horizonless object, such as a surgical Schwarzschild wormhole, with the frequencies differing drastically from those of the horizon quasinormal mode frequencies ωQNM at late times. While the possibility of such a horizonless alternative is novel by itself, we show by the example of the Ellis-Bronnikov wormhole that the differences in ωQNM in the eikonal limit (large l ) need not be drastic. This result will be reached by exploiting the connection between ωQNM and the Bozza strong field lensing parameters. We shall also show that the lensing observables of the Ellis-Bronnikov wormhole can be very close to those of a black hole (say, SgrA* hosted by our galaxy) of the same mass. This situation indicates that the ring-down frequencies and lensing observables of the Ellis-Bronnikov wormhole can remarkably mimic those of a black hole. The constraint on wormhole parameter γ imposed by experimental accuracy is briefly discussed. We also provide independent arguments supporting the stability of the Ellis-Bronnikov wormhole proven recently.

  7. 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…

  8. 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);…

  9. 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…

  10. 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.…

  11. 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…

  12. 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…

  13. 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…

  14. 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...

  15. 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,…

  16. 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:…

  17. 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)

  18. Analysis and Modeling of Multistatic Clutter and Reverberation and Support for the FORA

    DTIC Science & Technology

    2013-09-30

    for a Rayleigh distributed random variable (red) and that for a K-distributed random variable with shape parameter α and scale parameter λ, that...Ellis, John R. Preston, Paul C. Hines, and Victor W. Young, Bistatic signal excess calculations over variable bottom topography using adiabatic normal

  19. 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…

  20. Transitivity Alternations and Sequence Learning: Insights from L2 Spanish Production Data

    ERIC Educational Resources Information Center

    Zyzik, Eve

    2006-01-01

    This article examines alternating verbs (such as "quemar"(se) "to burn") in second language (L2) Spanish by considering the learnability problem from a sequence learning perspective (N. Ellis, 1996, 2002). In Spanish, verbs of the alternating class are obligatorily marked with the clitic "se" in their intransitive form. Errors of omission among…