Sample records for hizikia fusiformis harvey

  1. Effect of ionizing radiation on the physiological activities of ethanol extract from hizikia fusiformis cooking drips

    International Nuclear Information System (INIS)

    Kim, Hyun-Joo; Choi, Jong-il; Kim, Duk-Jin; Kim, Jae-Hun; Soo Chun, Byeong; Hyun Ahn, Dong; Sun Yook, Hong; Byun, Myung-Woo; Kim, Mi-Jung; Shin, Myung-Gon; Lee, Ju-Woon


    Although the byproduct from Hizikia fusiformis industry had many nutrients, it is being wasted. In this study, the physiological activities of cooking drip extracts from H. fusiformis (CDHF) were determined to investigate the effect of a gamma and an electron beam irradiations. DPPH radical scavenging activity and tyrosinase and ACE inhibition effects of the gamma and electron beam irradiated CDHF extracts were increased with increasing irradiation dose. These were reasoned by the increase in the content of the total polyphenolic compound of CDHF by the gamma and electron beam irradiation. There were no differences for the radiation types. These results show that ionizing radiation could be used for enhancing the functional activity of CDHF which is a major by-product in Hizikia fusiformis processing, in various applications.

  2. Cloning, expression and purification of cytochrome c{sub 6} from the brown alga Hizikia fusiformis and complete X-ray diffraction analysis of the structure

    Energy Technology Data Exchange (ETDEWEB)

    Akazaki, Hideharu [Bio-organic Chemistry Laboratory, Graduate School of Bioresource Sciences, Nihon University, Kameino 1866, Fujisawa-shi, Kanagawa 252-8510 (Japan); Kawai, Fumihiro [Protein Design Laboratory, Graduate School of Integrated Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi, Yokohama 230-0045 (Japan); Chida, Hirotaka; Matsumoto, Yuichirou; Hirayama, Mao; Hoshikawa, Ken [Bio-organic Chemistry Laboratory, Graduate School of Bioresource Sciences, Nihon University, Kameino 1866, Fujisawa-shi, Kanagawa 252-8510 (Japan); Unzai, Satoru [Protein Design Laboratory, Graduate School of Integrated Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi, Yokohama 230-0045 (Japan); Hakamata, Wataru; Nishio, Toshiyuki; Park, Sam-Yong; Oku, Tadatake, E-mail: [Bio-organic Chemistry Laboratory, Graduate School of Bioresource Sciences, Nihon University, Kameino 1866, Fujisawa-shi, Kanagawa 252-8510 (Japan)


    The crystal structure of cytochrome c{sub 6} from the brown alga H. fusiformis has been determined at 1.6 Å resolution. The amino-acid sequence and tertiary structure of H. fusiformis cytochrome c{sub 6} were very similar to those of red algal cytochrome c{sub 6} rather than those of green algal cytochrome c{sub 6}. The primary sequence of cytochrome c{sub 6} from the brown alga Hizikia fusiformis has been determined by cDNA cloning and the crystal structure has been solved at 1.6 Å resolution. The crystal belonged to the tetragonal space group P4{sub 1}2{sub 1}2, with unit-cell parameters a = b = 84.58, c = 232.91 Å and six molecules per asymmetric unit. The genome code, amino-acid sequence and crystal structure of H. fusiformis cytochrome c{sub 6} were most similar to those of red algal cytochrome c{sub 6}. These results support the hypothesis that brown algae acquired their chloroplasts via secondary endosymbiosis involving a red algal endosymbiont and a eukaryote host.

  3. Circadian Rhythm of Pyrocystis fusiformis (United States)

    Weishaar, B.


    For the Academy of Science St. Louis Science Fair, I tested how different photoperiods affect the morphology of Pyrocystis fusiformis with respect to the placement and formation of the chloroplasts. I set up four different rooms to observe the effect the different times in the photoperiod on location of chloroplasts in the cell. At 3:00pm, one room has been in the dark for 12 hours, one for 6 hours, one had been in the light phase for 12 hours and the fourth in the light phase for 6 hours. P fusiformis samples were obtained from each room, observed, photographed at X100 power, and categorized as being a 1, 2, 3, or 4 depending on the position of the chloroplasts. The samples in the different rooms were observed once a week for two weeks, then the samples were rotated to see if P. fusiformis would synchronize the same to the new photoperiod. It was observed that the cells changed morphological stages in the circadian cycle, the chloroplasts moved further away from the nucleus when exposed to light and moved closer to the nucleus when experiencing no light.

  4. Ethyl Alcohol Extract of Hizikia fusiforme Induces Caspase ...

    African Journals Online (AJOL)

    Ethyl Alcohol Extract of Hizikia fusiforme Induces Caspase-dependent Apoptosis in Human Leukemia U937 Cells by Generation of Reactive Oxygen Species. C-H Kang, S-H Kang, S-H Boo, S-Y Park, D-O Moon, G-Y Kim ...

  5. [William Harvey revisited ]. (United States)

    Steinke, Hubert


    William Harvey's discovery of the circulation of the blood is often described as a product of the Scientific Revolution of the Seventeenth Century. Modern research has, however, shown thatHarvey followed the Aristotelian research tradition and thus tried to reveal the purpose of the organs through examination of various animals. His publication of 1628 has to be read as an argument of natural philosophy, or, more precisely, as a series of linked observations, experiments and philosophical reasonings from which the existence of circulation has to be deduced as a logical consequence. Harvey did not consider experiments as superior to philosophical reasoning nor intended he to create a new system of medicine. He believed in the vitality of the heart and the blood and rejected Francis Bacon's empirism and the mechanistic rationalism of Descartes. Harvey's contribution and originality lied less in his single observations and experiments but in the manner how he linked them with critical reasoning and how he accepted, presented and defended the ensuing radical findings.

  6. Characterization of phycocyanin from Spirulina fusiformis and its thermal stability (United States)

    Munawaroh, H. S. H.; Darojatun, K.; Gumilar, G. G.; Aisyah, S.; Wulandari, A. P.


    Microalgae have some pigments which are potential to be used as functional colorant for foods and cosmetics industries. Here, Spirulina fusiformis is one of the major sources of a blue pigment phycocyanin which has commercial and biotechnological value for biomedical research, as well as a natural colorant for food and cosmetic industries. This study aims at investigating the characteristic of isolated C-phycocyanin from Spirulina fusiformis and its stability under different temperature. A food grade phycocyanin with purity of 2.0 (A620/A280) was obtained successfully from Spirulina fusiformis cultured in seawater-based modified medium and purified by ammonium sulfate precipitation. No significant changes were observed in the spectrum absorbance of C-phycocyanin at temperature up to 60°C over 30 minutes of incubation, and was observed to significantly denaturation at 70°C and higher temperature. Incubation of the pigment at relatively high temperature resulted in a decrease in the spectrum intensities of the C-phycocyanin in a temperature-dependent manner. Taken together, our results suggest that the optimal condition for preserving the stability of food grade phycocyanin isolated from Spirulina fusiformis is taking it at low temperature.

  7. Latitudinal variation in Atlantic Salpa fusiformis Cuvier, 1804 (Tunicata, Thaliacea)

    NARCIS (Netherlands)

    Soest, van R.W.M.


    The existence of clinal variation in some morphological characters of Atlantic Salpa fusiformis Cuvier, 1804, is reported. The number of muscle fibres of both aggregate and solitary individuals is subjected to a decrease from higher to lower latitudes. Size and reproduction also seem to vary

  8. William Harvey, Aristotle and astrology. (United States)

    Gregory, Andrew


    In this paper I argue that William Harvey believed in a form of astrology. It has long been known that Harvey employed a macrocosm-microcosm analogy and used alchemical terminology in describing how the two types of blood change into one another. This paper then seeks to examine a further aspect of Harvey in relation to the magical tradition. There is an important corollary to this line of thought, however. This is that while Harvey does have a belief in astrology, it is strongly related to Aristotle's views in this area and is quite restricted and attenuated relative to some contemporary beliefs in astrology. This suggests a more general thesis. While Harvey was amenable to ideas which we associate with the natural magic tradition, those ideas had a very broad range of formulation and there was a limit to how far he would accept them. This limit was largely determined by Harvey's adherence to Aristotle's natural philosophy and his Christian beliefs. I argue that this is also the case in relation to Harvey's use of the macrocosm-microcosm analogy and of alchemical terminology, and, as far as we can rely on the evidence, this informs his attitudes towards witches as well. Understanding Harvey's influences and motives here is important in placing him properly in the context of early seventeenth-century thought.


    Directory of Open Access Journals (Sweden)

    Fauzan Fauzan


    Full Text Available Sebagian besar kaum agamawan (ortodoks memandang sekularisasi sebagai ancaman terhadap eksistensi agama. Namun sebaliknya, Harvey Cox memandang sekularisasi sebagai teologi perubahan sosial yang bertujuan mendobrak kebuntuan agama yang terbelenggu oleh ide “pemeliharaan” dan “kemapanan”. Tulisan ini membahas pandangan Harvey Cox tentang sekularisasi, konsepnya tentang Kota Sekuler (Secular City, dan Tuhan pada masyarakat sekuler. Cox melihat sekularisasi merupakan sebuah keniscayaan sejarah. Sekularisasi merupakan gerakan yang membebaskan manusia dari dogma yang membelenggu kebebasan manusia. Melalui simbol Kota Sekuler, Cox menghadirkan paradigma teologi yang lebih sesuai dengan keadaan masyarakat modern saat ini. Cox melihat bahwa Tuhan sebagaimana yang diajarkan oleh Kristiani –juga agama lain– bukanlah Tuhan yang sebenarnya. Tuhan tak lebih dari sebuah penamaan yang kehadirannya terkadang kosong dan ambigu. Semenjak penamaan dilekatkan dalam lingkungan sosio kultural tertentu, maka kata “Tuhan” tidak suci lagi. Apabila Tuhan dimaknai secara “ketat” dalam ruang tradisi yang berbeda-beda, maka akan terjadi benturan yang terkadang membutuhkan pengorbanan jiwa.

  10. Taxonomy and phylogenetic position of Fimbristylis fusiformis, a new species of Cyperaceae from Thailand

    NARCIS (Netherlands)

    Wangwasit, K.; Muasya, A.M.; Chantaranothai, P.; Simpson, D.A.


    Fimbristylis fusiformis, an unusual new species of Cyperaceae from Thailand, is described and illustrated. This taxon has a single terminal spikelet per culm with a semi-distichous glume arrangement, bisexual flowers that lack perianth parts, and pistil with persistent style whose base is slightly

  11. Performance of Oil Infrastructure during Hurricane Harvey (United States)

    Bernier, C.; Kameshwar, S.; Padgett, J.


    Three major refining centers - Corpus Christi, Houston, and Beaumont/Port Arthur - were affected during Hurricane Harvey. Damage to oil infrastructure, especially aboveground storage tanks (ASTs), caused the release of more than a million gallons of hazardous chemicals in the environment. The objective of this presentation is to identify and gain a better understanding of the different damage mechanisms that occurred during Harvey in order to avoid similar failures during future hurricane events. First, a qualitative description of the damage suffered by ASTs during Hurricane Harvey is presented. Analysis of aerial imagery and incident reports indicate that almost all spills were caused by rainfall and the associated flooding. The largest spill was caused by two large ASTs that floated due to flooding in the Houston Ship Channel releasing 500,000 gallons of gasoline. The vulnerability of ASTs subjected to flooding was already well known and documented from previous storm events. In addition to flooding, Harvey also exposed the vulnerability of ASTs with external floating roof to extreme rainfall; more than 15 floating roofs sank or tilted due to rain water accumulation on them, releasing pollutants in the atmosphere. Secondly, recent fragility models developed by the authors are presented which allow structural vulnerability assessment of floating roofs during rainfall events and ASTs during flood events. The fragility models are then coupled with Harvey rainfall and flood empirical data to identify the conditions (i.e.: internal liquid height or density, drainage system design and efficiency, etc.) that could have led to the observed failures during Hurricane Harvey. Finally, the conditions causing tank failures are studied to propose mitigation measures to prevent future AST failures during severe storm, flood, or rainfall events.

  12. Iain Harvey - inglasest võlur-produtsent / Iain Harvey ; interv. Heilika Võsu

    Index Scriptorium Estoniae

    Harvey, Iain


    Londoni animafilmistuudio "The Illuminated Film Company" produtsent Pimedate Ööde Filmifestivali animafilmide festivali "Animated Dreams 2002" külalisena. Lisatud andmed I. Harvey loomingulise tegevuse kohta, lk. 103

  13. Preparation and certification of hijiki reference material, NMIJ CRM 7405-a, from the edible marine algae hijiki (Hizikia fusiforme). (United States)

    Narukawa, Tomohiro; Inagaki, Kazumi; Zhu, Yanbei; Kuroiwa, Takayoshi; Narushima, Izumi; Chiba, Koichi; Hioki, Akiharu


    A certified reference material, NMIJ CRM 7405-a, for the determination of trace elements and As(V) in algae was developed from the edible marine hijiki (Hizikia fusiforme) and certified by the National Metrology Institute of Japan (NMIJ), the National Institute of Advanced Industrial Science and Technology (AIST). Hijiki was collected from the Pacific coast in the Kanto area of Japan, and was washed, dried, powdered, and homogenized. The hijiki powder was placed in 400 bottles (ca. 20 g each). The concentrations of 18 trace elements and As(V) were determined by two to four independent analytical techniques, including (ID)ICP-(HR)MS, ICP-OES, GFAAS, and HPLC-ICP-MS using calibration solutions prepared from the elemental standard solution of Japan calibration service system (JCSS) and the NMIJ CRM As(V) solution, and whose concentrations are certified and SI traceable. The uncertainties of all the measurements and preparation procedures were evaluated. The values of 18 trace elements and As(V) in the CRM were certified with uncertainty (k = 2).

  14. Lysinibacillus fusiformis M5 induces increased complexity in Bacillus subtilis 168 colony biofilms via hypoxanthine

    DEFF Research Database (Denmark)

    Gallegos-Monterrosa, Ramses; Kankel, Stefanie; Götze, Sebastian


    to identify soil bacteria, which induce architectural changes in biofilm colonies when cocultured with B. subtilis. We identified the soil bacterium Lysinibacillus fusiformis M5 as inducer of wrinkle-formation in B. subtilis colonies mediated by a diffusible signaling molecule. This compound was isolated......O, but not PbuG, is necessary for hypoxanthine to induce an increase in wrinkle formation of B. subtilis biofilm colonies. Our results suggest that hypoxanthine-stimulated wrinkle development is not due to a direct induction of biofilm-related gene expression, but rather caused by the excess of hypoxanthine...... within B. subtilis cells, which may lead to cell stress and death. Importance Biofilms are a bacterial lifestyle with high relevance regarding diverse human activities. Biofilms can be favorable, for instance in crop protection. In nature, biofilms are commonly found as multispecies communities...

  15. Hurricane Harvey Report : A fact-finding effort in the direct aftermath of Hurricane Harvey in the Greater Houston Region

    NARCIS (Netherlands)

    Sebastian, A.G.; Lendering, K.T.; Kothuis, B.L.M.; Brand, A.D.; Jonkman, S.N.; van Gelder, P.H.A.J.M.; Kolen, B.; Comes, M.; Lhermitte, S.L.M.; Meesters, K.J.M.G.; van de Walle, B.A.; Ebrahimi Fard, A.; Cunningham, S.; Khakzad Rostami, N.; Nespeca, V.


    On August 25, 2017, Hurricane Harvey made landfall near Rockport, Texas as a Category 4 hurricane with maximum sustained winds of approximately 200 km/hour. Harvey caused severe damages in coastal Texas due to extreme winds and storm surge, but will go down in history for record-setting rainfall

  16. Harvey Butcher: a passion for astronomical instrumentation (United States)

    Bhathal, Ragbir


    This paper covers some aspects of the scientific life of Harvey Butcher who was the Director of the Research School for Astronomy and Astrophysics at the Australian National University in Canberra from September 2007 to January 2013. He has made significant contributions to research on the evolution of galaxies, nucleosynthesis, and on the design and implementation of advanced astronomical instrumentation including LOFAR (Low Frequency Array Radio telescope). He is well known for his discovery of the Butcher-Oemler effect. Before coming to Australia he was the Director of the Netherlands Foundation for Research in Astronomy from September 1991 to January 2007. In 2005 he was awarded a Knighthood in the Order of the Netherlands Lion for contributions to interdisciplinary science, innovation and public outreach.This paper is based on an interview conducted by the author with Harvey Butcher for the National Project on Significant Australian Astronomers sponsored by the National Library of Australia. Except otherwise stated, all quotations used in this paper are from the Butcher interview which has been deposited in the Oral History Archives of the National Library.

  17. Hurricane Harvey & Houston: Hell or High Water (United States)

    Bedient, P. B.


    Harvey was the largest rainfall and most damaging flood event in US history. By all measures the widespread impact was a devastating blow to all of Houston and surrounding areas. It dropped between 36 and 52 inches along the Texas coast over 5 days, exceeding all previous rainfall records, with up to 20 inches in a day. However, two earlier events from 2015 and 2016 also brought widespread flooding to many parts of Houston, especially concentrated in a few watersheds. Most bayous during Harvey were over bank by as much as 10 ft, and flooded an estimated 136000 homes in Harris county alone, greatly exceeding the massive TS Allison impact of 2001. While the area deals with a significant recovery effort, there is a massive call to action on the part of politicians, governmental agencies, and those affected by this event. There is need for a better statistical basis of rainfalls and floodplain mapping in Houston. Development patterns and density have come into question, as homes have been either built in 100 yr floodplains or taken into those floodplains over time. Estimates say > 47 % of homes flooded in TS Allison were outside the floodplain. Many homes were built behind Addicks/Barker reservoirs that protect downtown, many with no knowledge that they were in harms way (over 8000 were flooded there alone), and flooded as water reached record setting levels. New technologies have allowed the measurement and prediction of floods to make great strides since the mid 1990s, (Radar, LIDAR, GIS, hydrologic models, floodplain updates) and the Houston area has benefited from these efforts. While the plan going forward is daunting, there are a number of positive steps that are occurring and should lead to more resiliency. There needs to be policy changes on storage and detention requirements, green space & infrastructure improvements, and perhaps a third regional reservoir above Addicks. Also there is a renewed interest in flood warning systems to better inform the public

  18. Lysinibacillus fusiformis M5 Induces Increased Complexity in Bacillus subtilis 168 Colony Biofilms via Hypoxanthine. (United States)

    Gallegos-Monterrosa, Ramses; Kankel, Stefanie; Götze, Sebastian; Barnett, Robert; Stallforth, Pierre; Kovács, Ákos T


    In recent years, biofilms have become a central subject of research in the fields of microbiology, medicine, agriculture, and systems biology, among others. The sociomicrobiology of multispecies biofilms, however, is still poorly understood. Here, we report a screening system that allowed us to identify soil bacteria which induce architectural changes in biofilm colonies when cocultured with Bacillus subtilis We identified the soil bacterium Lysinibacillus fusiformis M5 as an inducer of wrinkle formation in B. subtilis colonies mediated by a diffusible signaling molecule. This compound was isolated by bioassay-guided chromatographic fractionation. The elicitor was identified to be the purine hypoxanthine using mass spectrometry and nuclear magnetic resonance (NMR) spectroscopy. We show that the induction of wrinkle formation by hypoxanthine is not dependent on signal recognition by the histidine kinases KinA, KinB, KinC, and KinD, which are generally involved in phosphorylation of the master regulator Spo0A. Likewise, we show that hypoxanthine signaling does not induce the expression of biofilm matrix-related operons epsABCDEFGHIJKLMNO and tasA-sipW-tapA Finally, we demonstrate that the purine permease PbuO, but not PbuG, is necessary for hypoxanthine to induce an increase in wrinkle formation of B. subtilis biofilm colonies. Our results suggest that hypoxanthine-stimulated wrinkle development is not due to a direct induction of biofilm-related gene expression but rather is caused by the excess of hypoxanthine within B. subtilis cells, which may lead to cell stress and death. IMPORTANCE Biofilms are a bacterial lifestyle with high relevance regarding diverse human activities. Biofilms can be beneficial, for instance, in crop protection. In nature, biofilms are commonly found as multispecies communities displaying complex social behaviors and characteristics. The study of interspecies interactions will thus lead to a better understanding and use of biofilms as they

  19. Optimized production and characterization of a detergent-stable protease from Lysinibacillus fusiformis C250R. (United States)

    Mechri, Sondes; Kriaa, Mouna; Ben Elhoul Berrouina, Mouna; Omrane Benmrad, Maroua; Zaraî Jaouadi, Nadia; Rekik, Hatem; Bouacem, Khelifa; Bouanane-Darenfed, Amel; Chebbi, Alif; Sayadi, Sami; Chamkha, Mohamed; Bejar, Samir; Jaouadi, Bassem


    In this study, we aimed to optimize the cultural and nutritional conditions for protease production by Lysinibacillus fusiformis strain C250R in submerged fermentation process using statistical methodology. The most significant factors (gruel, wheat bran, yeast extract, and FeSO 4 ) were identified by Plackett-Burman design. Response surface methodology (RSM) was used to determine the optimum levels of the screened factors and their interaction. Under the optimized conditions, protease yield 3100U/mL was 4.5 folds higher than those obtained by the use of the initial conditions (680U/mL). Additionally, a new extracellular 51kDa-protease, designated SAPLF, was purified and biochemically characterized from strain C250R. It shows optimum activity at 70°C and pH 10. Its half-life times at 70 and 80°C were 10 and 6-h, respectively. Irreversible inhibition of enzyme activity of SAPLF with serine protease inhibitors demonstrated that it belongs to the serine protease family. Interestingly, its catalytic efficiency was higher than that of SPVP from Aeribacillus pallidus strain VP3 and Alcalase Ultra 2.5L from Bacillus licheniformis. This study demonstrated that SAPLF has a high detergent compatibility and an excellent stain removal compared to Alcalase Ultra 2.5L; which offers an interesting potential for its application in the laundry detergent industry. Copyright © 2017 Elsevier B.V. All rights reserved.

  20. 75 FR 32275 - Regulated Navigation Area; Gulf Intracoastal Waterway, Inner Harbor Navigation Canal, Harvey... (United States)


    ... required by paragraph (d)(2) of this section, to the COTP within five days of the oral request. (4) The... be evacuated from the Harvey Canal. The Coast Guard understands that the Harvey and Algiers Canals...

  1. Hurricane Harvey Report: A fact-finding effort in the direct aftermath of Hurricane Harvey in the Greater Houston Region


    Sebastian, A.G.; Lendering, K.T.; Kothuis, B.L.M.; Brand, A.D.; Jonkman, S.N.; van Gelder, P.H.A.J.M.; Kolen, B.; Comes, M.; Lhermitte, S.L.M.; Meesters, K.J.M.G.; van de Walle, B.A.; Ebrahimi Fard, A.; Cunningham, S.; Khakzad Rostami, N.; Nespeca, V.


    On August 25, 2017, Hurricane Harvey made landfall near Rockport, Texas as a Category 4 hurricane with maximum sustained winds of approximately 200 km/hour. Harvey caused severe damages in coastal Texas due to extreme winds and storm surge, but will go down in history for record-setting rainfall totals and flood-related damages. Across large portions of southeast Texas, rainfall totals during the six-day period between August 25 and 31, 2017 were amongst the highest ever recorded, causing flo...

  2. Brief communication: Loss of life due to Hurricane Harvey

    NARCIS (Netherlands)

    Jonkman, Sebastiaan N.; Godfroij, Maartje; Sebastian, Antonia; Kolen, B.


    An analysis was made of the loss of life caused by Hurricane Harvey. Information was collected for 70 fatalities that occurred due to the event and were recovered within the first 2 weeks after landfall. Most fatalities occurred due to drowning (81 %), particularly in and around vehicles. Males

  3. Attribution of extreme rainfall from Hurricane Harvey, August 2017

    NARCIS (Netherlands)

    Van Oldenborgh, Geert Jan; Van Der Wiel, Karin; Sebastian, A.G.; Singh, Roop; Arrighi, Julie; Otto, Friederike; Haustein, Karsten; Li, Sihan; Vecchi, Gabriel; Cullen, Heidi


    During August 25-30, 2017, Hurricane Harvey stalled over Texas and caused extreme precipitation, particularly over Houston and the surrounding area on August 26-28. This resulted in extensive flooding with over 80 fatalities and large economic costs. It was an extremely rare event: the return

  4. Historicalvignette: Harvey Pirie (1879-1965) and the Falklands ...

    African Journals Online (AJOL)

    Or James Harvey Pirie was a bacteriologist, orchid grower and stamp collector of note in South Africa for nearly 50 years. Shortly after receiving a science and medical degree at Edinburgh, he joined the Scottish National Antarctic Expedition to the Falkland Islands and Antarctica from October 1902 to July 1904, returning ...

  5. Monitoring and Mapping the Hurricane Harvey Flooding in Houston, Texas. (United States)

    Balaji Bhaskar, M. S.


    Monitoring and Mapping the Hurricane Harvey Flooding in Houston, Texas.Urban flooding is a hazard that causes major destruction and loss of life. High intense precipitation events have increased significantly in Houston, Texas in recent years resulting in frequent river and bayou flooding. Many of the historical storm events such as Allison, Rita and Ike have caused several billion dollars in losses for the Houston-Galveston Region. A category 4 Hurricane Harvey made landfall on South Texas resulting in heavy precipitation from Aug 25 to 29 of 2017. About 1 trillion gallons of water fell across Harris County over a 4-day period. This amount of water covers Harris County's 1,800 square miles with an average of 33 inches of water. The long rain event resulted in an average 40inch rainfall across the area in several rain gauges and the maximum rainfall of 49.6 inches was recorded near Clear Creek. The objectives of our study are to 1) Process the Geographic Information System (GIS) and satellite data from the pre and post Hurricane Harvey event in Houston, Texas and 2) Analyze the satellite imagery to map the nature and pattern of the flooding in Houston-Galveston Region. The GIS data of the study area was downloaded and processed from the various publicly available resources such as Houston Galveston Area Council (HGAC), Texas Commission of Environmental Quality (TCEQ) and Texas Natural Resource Information Systems (TNRIS). The satellite data collected soon after the Harvey flooding event were downloaded and processed using the ERDAS image processing software. The flood plain areas surrounding the Brazos River, Buffalo Bayou and the Addicks Barker reservoirs showed severe inundation. The different watershed areas affected by the catastrophic flooding in the wake of Hurricane Harvey were mapped and compared with the pre flooding event.

  6. Estimating the human influence on Hurricanes Harvey, Irma and Maria (United States)

    Wehner, M. F.; Patricola, C. M.; Risser, M. D.


    Attribution of the human-induced climate change influence on the physical characteristics of individual extreme weather events has become an advanced science over the past decade. However, it is only recently that such quantification of anthropogenic influences on event magnitudes and probability of occurrence could be applied to very extreme storms such as hurricanes. We present results from two different classes of attribution studies for the impactful Atlantic hurricanes of 2017. The first is an analysis of the record rainfall amounts during Hurricane Harvey in the Houston, Texas area. We analyzed observed precipitation from the Global Historical Climatology Network with a covariate-based extreme value statistical analysis, accounting for both the external influence of global warming and the internal influence of ENSO. We found that human-induced climate change likely increased Hurricane Harvey's total rainfall by at least 19%, and likely increased the chances of the observed rainfall by a factor of at least 3.5. This suggests that changes exceeded Clausius-Clapeyron scaling, motivating attribution studies using dynamical climate models. The second analysis consists of two sets of hindcast simulations of Hurricanes Harvey, Irma, and Maria using the Weather Research and Forecasting model (WRF) at 4.5 km resolution. The first uses realistic boundary and initial conditions and present-day greenhouse gas forcings while the second uses perturbed conditions and pre-industrial greenhouse has forcings to simulate counterfactual storms without anthropogenic influences. These simulations quantify the fraction of Harvey's precipitation attributable to human activities and test the super Clausius-Clapeyron scaling suggested by the observational analysis. We will further quantify the human influence on intensity for Harvey, Irma, and Maria.

  7. Intake and excretion of 99Tc in a common sea alga, (hijiki Hizikia Fusiforme), as ingested in the daily diet - A measurement in an adult male

    International Nuclear Information System (INIS)

    Kawamura, H.; Hirano, S.; Nishimuta, M.


    Ingestion and excretion of environmental 99 Tc was measured in an adult male who ingested 'hijiki' food in his diet that contained a sub-bequerel activity per kg, and which was prepared from a marine alga, Hizikia fusiforme,or hijiki in Japanese, traditionally eaten in the Japanese diet. Harvested hijiki was boiled, dried and cooked. This was eaten at each meal five times over 2 d. All faeces and 24-h urine samples were collected during the 3 d before and subsequent 11 d starting from the day when the intake began. The ingestion intake was measured by analysing the dried hijiki material. 99 Tc was determined by using liquid-liquid extraction and low-background beta ray spectrometry. The excreta were also analysed for minerals by atomic absorption spectrometry. The apparent absorption rate in the gastrointestinal tract for 99 Tc under these conditions was calculated to be approximately 0.5. The present result from a single subject indicates the need for further studies. (author)

  8. Distribution of a pelagic tunicate, Salpa fusiformis in warm surface current of the eastern Korean waters and its impingement on cooling water intakes of Uljin nuclear power plant. (United States)

    Chae, Jinho; Choi, Hyun Woo; Lee, Woo Jin; Kim, Dongsung; Lee, Jae Hac


    Impingement of a large amount of gelatinous plankton, Salpa fusiformis on the seawater intake system-screens in a nuclear power plant at Uljin was firstly recorded on 18th June 2003. Whole amount of the clogged animals was estimated were presumptively at 295 tons and the shortage of cooling seawater supply by the animal clogging caused 38% of decrease in generation capability of the power plant. Zooplankton collection with a multiple towing net during the day and at night from 5 to 6 June 2003 included various gelatinous zooplanktons known to be warm water species such as salps and siphonophores. Comparatively larger species, Salpa fusiformis occupied 25.4% in individual density among the gelatinous plankton and showed surface distribution in the depth shallower than thermocline, performing little diel vertical migration. Temperature, salinity and satellite data also showed warm surface current predominated over the southern coastal region near the power plant in June. The results suggested that warm surface current occasionally extended into the neritic region may transfer S. fusiformis, to the waters off the power plant. The environmental factors and their relation to ecobiology of the large quantity of salpa population that are being sucked into the intake channel of the power plant are discussed.

  9. Blood money: Harvey's De motu cordis (1628) as an exercise in accounting. (United States)

    Neuss, Michael J


    William Harvey's famous quantitative argument from De motu cordis (1628) about the circulation of blood explained how a small amount of blood could recirculate and nourish the entire body, upending the Galenic conception of the blood's motion. This paper argues that the quantitative argument drew on the calculative and rhetorical skills of merchants, including Harvey's own brothers. Modern translations of De motu cordis obscure the language of accountancy that Harvey himself used. Like a merchant accounting for credits and debits, intake and output, goods and moneys, Harvey treated venous and arterial blood as essentially commensurate, quantifiable and fungible. For Harvey, the circulation (and recirculation) of blood was an arithmetical necessity. The development of Harvey's circulatory model followed shifts in the epistemic value of mercantile forms of knowledge, including accounting and arithmetic, also drawing on an Aristotelian language of reciprocity and balance that Harvey shared with mercantile advisers to the royal court. This paper places Harvey's calculations in a previously underappreciated context of economic crisis, whose debates focused largely on questions of circulation.

  10. Brief communication: Loss of life due to Hurricane Harvey (United States)

    Jonkman, Sebastiaan N.; Godfroy, Maartje; Sebastian, Antonia; Kolen, Bas


    An analysis was made of the loss of life caused by Hurricane Harvey. Information was collected for 70 fatalities that occurred due to the event and were recovered within the first 2 weeks after landfall. Most fatalities occurred due to drowning (81 %), particularly in and around vehicles. Males (70 %) and people over 50 years old (56 %) were overrepresented in the dataset. More than half of the fatalities occurred in the greater Houston area (n = 37), where heavy rainfall and dam releases caused unprecedented urban flooding. The majority of fatalities were recovered outside the designated 100- and 500-year flood hazard areas.

  11. Attribution of extreme rainfall from Hurricane Harvey, August 2017


    Van Oldenborgh, Geert Jan; Van Der Wiel, Karin; Sebastian, A.G.; Singh, Roop; Arrighi, Julie; Otto, Friederike; Haustein, Karsten; Li, Sihan; Vecchi, Gabriel; Cullen, Heidi


    During August 25-30, 2017, Hurricane Harvey stalled over Texas and caused extreme precipitation, particularly over Houston and the surrounding area on August 26-28. This resulted in extensive flooding with over 80 fatalities and large economic costs. It was an extremely rare event: the return period of the highest observed three-day precipitation amount, 1043.4 mm 3dy-1 at Baytown, is more than 9000 years (97.5% one-sided confidence interval) and return periods exceeded 1000 yr (750 mm 3dy-1)...

  12. Building Change Detection from Harvey using Unmanned Aerial System (UAS) (United States)

    Chang, A.; Yeom, J.; Jung, J.; Choi, I.


    Unmanned Aerial System (UAS) is getting to be the most important technique in recent days since the fine spatial and high temporal resolution data previously unobtainable from traditional remote sensing platforms. Advanced UAS data can provide a great opportunity for disaster monitoring. Especially, building change detection is the one of the most important topics for damage assessment and recovery from disasters. This study is proposing a method to monitor building change with UAS data for Holiday Beach in Texas, where was directly hit by Harvey on 25 August 2017. This study adopted 3D change detection to monitor building damage and recovery levels with building height as well as natural color information. We used a rotorcraft UAS to collect RGB data twice on 9 September and 18 October 2017 after the hurricane. The UAS data was processed using Agisoft Photoscan Pro Software to generate super high resolution dataset including orthomosaic, DSM (Digital Surface Model), and 3D point cloud. We compared the processed dataset with an airborne image considerable as before-hurricane data, which was acquired on January 2016. Building damage and recovery levels were determined by height and color change. The result will show that UAS data is useful to assess building damage and recovery for affected area by the natural disaster such as Harvey.

  13. Flood Inundation Mapping and Emergency Operations during Hurricane Harvey (United States)

    Fang, N. Z.; Cotter, J.; Gao, S.; Bedient, P. B.; Yung, A.; Penland, C.


    Hurricane Harvey struck the Gulf Coast as Category 4 on August 25, 2017 with devastating and life-threatening floods in Texas. Harris County received up to 49 inches of rainfall over a 5-day period and experienced flooding level and impacts beyond any previous storm in Houston's history. The depth-duration-frequency analysis reveals that the areal average rainfall for Brays Bayou surpasses the 500-year rainfall in both 24 and 48 hours. To cope with this unprecedented event, the researchers at the University of Texas at Arlington and Rice University worked closely with the U.S. Army Corps of Engineers (USACE), the National Weather Service (NWS), the Texas Division of Emergency Management (TDEM), Walter P. Moore and Associates, Inc. and Halff Associates, to conduct a series of meteorological, hydrologic and hydraulic analyses to delineate flood inundation maps. Up to eight major watersheds in Harris County were delineated based the available QPE data from WGRFC. The inundation map over Brays Bayou with their impacts from Hurricane Harvey was delineated in comparison with those of 100-, 500-year, and Probable Maximum Precipitation (PMP) design storms. This presentation will provide insights for both engineers and planners to re-evaluate the existing flood infrastructure and policy, which will help build Houston stronger for future extreme storms. The collaborative effort among the federal, academic, and private entities clearly demonstrates an effective approach for flood inundation mapping initiatives for the nation.

  14. Geotechnical Impacts of Hurricane Harvey Along the Texas, USA Coast (United States)

    Smallegan, S. M.; Stark, N.; Jafari, N.; Ravichandran, N.; Shafii, I.; Bassal, P.; Figlus, J.


    As part of the NSF-funded Geotechnical Extreme Events Reconnaissance (GEER) Association response to Hurricane Harvey, a team of engineers and scientists mobilized to the coastal cities of Texas, USA from 1 to 5 September 2017. Damage to coastal and riverine structures due to erosion by storm surge, waves, and coastal and riverine flooding was assessed in a wide coastal zone between Corpus Christi and Galveston. Making initial landfall near Rockport, Texas on 26 August 2017, Hurricane Harvey was classified as a category 4 hurricane on the Saffir-Simpson scale with wind speeds exceeding 130 mph and an atmospheric pressure of 938 mbar. The storm stalled over the Houston area, pouring 40 inches of rain on an area encompassing more than 3,000 square miles. Hurricane Harvey, which remained a named storm for 117 hours after initial landfall, slowly moved east into the Gulf of Mexico and made final landfall near Cameron, Louisiana on 30 August. The GEER team surveyed sixteen main sites, extending from Mustang Island in the southwest to Galveston in the northeast and as far inland as Rosenburg. In Port Aransas, beach erosion and undercutting along a beach access road near Aransas Pass were observed. Due to several tide gauge failures in this area, the nearest NOAA tide gauge (#8775870 near Corpus Christi) was used to estimate water levels of 1.35 m, approximately 1.0 m above the predicted tide. In Holiday Beach, anchored retaining walls were inundated, causing backside scour along the entire length and exposing the sheetpile wall anchors. Along the Colorado River at the Highway 35 bridge near Bay City, active riverbank failure was observed and a sheet pile wall was found collapsed. Significant sediment deposits lined the vegetated riverbanks. A USGS stream gage recorded gage heights greater than 45 ft, exceeding the flood stage of 44 ft. Fronting a rubblemound seawall in Surfside Beach, a runnel and ridge formation was observed. Nearby at San Luis Pass, infilled scour

  15. Morphological and ecological parallels between sublittoral and abyssal foraminiferal species in the NE Atlantic: a comparison of Stainforthia fusiformis and Stainforthia sp. (United States)

    Gooday, Andrew J.; Alve, Elisabeth

    Dead specimens of a minute fusiform rotaliid foraminifer are common in the 28-63 μm fraction of multiple corer samples from a 4850 m-deep site on the Porcupine Abyssal Plain (PAP). Their test morphology is remarkably similar to small specimens of Stainforthia fusiformis ( Williamson, 1858), a species which is well known from coastal settings (intertidal to outer shelf) around NW Europe and North America. A detailed comparison of the PAP form with typical individuals of S. fusiformis from Norwegian waters (55-203 m depth), however, reveals slight but consistent morphological differences. The PAP specimens are smaller (test length 40-140 μm) than those from Norway (test length 80-380 μm), the chambers tend to be rather less elongate, the density of pores in the test wall is much lower, and there are differences in apertural features. We therefore conclude that the diminutive abyssal form is a distinct species, here referred to as Stainforthia sp. This interpretation is consistent with increasing evidence for genetic differentiation in deep-sea organisms, particularly along bathymetric gradients. Stainforthia sp. was previously illustrated by Pawlowski as Fursenkoina sp. and appears to be widespread and abundant in the abyssal North Atlantic (>4000 m depth). Stainforthia fusiformis, on the other hand, is most abundant in continental shelf and coastal settings. It extends onto the continental slope in the North Atlantic but has not been reported reliably from depths greater than about 2500 m. We suggest that the striking morphological convergence between these two species reflects the adoption of similar ecological strategies in widely separated habitats. Both are enrichment opportunists, a life-style which may explain the rather broad bathymetric range of Stainforthia fusiformis. This is a dominant species in organically-enriched and sometimes extremely oxygen-depleted environments on the continental shelf, and is a rapid coloniser of formerly azoic habitats. Live

  16. Hurricane Harvey Building Damage Assessment Using UAV Data (United States)

    Yeom, J.; Jung, J.; Chang, A.; Choi, I.


    Hurricane Harvey which was extremely destructive major hurricane struck southern Texas, U.S.A on August 25, causing catastrophic flooding and storm damages. We visited Rockport suffered severe building destruction and conducted UAV (Unmanned Aerial Vehicle) surveying for building damage assessment. UAV provides very high resolution images compared with traditional remote sensing data. In addition, prompt and cost-effective damage assessment can be performed regardless of several limitations in other remote sensing platforms such as revisit interval of satellite platforms, complicated flight plan in aerial surveying, and cloud amounts. In this study, UAV flight and GPS surveying were conducted two weeks after hurricane damage to generate an orthomosaic image and a DEM (Digital Elevation Model). 3D region growing scheme has been proposed to quantitatively estimate building damages considering building debris' elevation change and spectral difference. The result showed that the proposed method can be used for high definition building damage assessment in a time- and cost-effective way.

  17. Brief communication: Loss of life due to Hurricane Harvey

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    S. N. Jonkman


    Full Text Available An analysis was made of the loss of life caused by Hurricane Harvey. Information was collected for 70 fatalities that occurred due to the event and were recovered within the first 2 weeks after landfall. Most fatalities occurred due to drowning (81 %, particularly in and around vehicles. Males (70 % and people over 50 years old (56 % were overrepresented in the dataset. More than half of the fatalities occurred in the greater Houston area (n  =  37, where heavy rainfall and dam releases caused unprecedented urban flooding. The majority of fatalities were recovered outside the designated 100- and 500-year flood hazard areas.

  18. Biogeochemical Impact of Hurricane Harvey on Texas Coastal Lagoons (United States)

    Montagna, P.; Hu, X.; Walker, L.; Wetz, M.


    Hurricane Harvey made landfall Friday 25 August 2017 as a Category 4 hurricane, which is the strongest hurricane to hit the middle Texas coast since Carla in 1961. After the wind storm and storm surge, coastal flooding occurred due to the storm lingering over Texas for four more days, dumping as much as 50" of rain near Houston, producing 1:1000 year flood event. The Texas coast is characterized by lagoons behind barrier islands, and their ecology and biogeochemistry are strongly influenced by coastal hydrology. The ensuing inflow event replaced brackish water with fresh water that was high in inorganic an organic matter, significantly enhancing respiration of coastal blue carbon, and dissolved oxygen went to zero for a long period of time. Recovery will likely take months or nearly one year.

  19. Are recent hurricane (Harvey, Irma, Maria) disasters natural? (United States)

    Trenberth, K. E.; Lijing, C.; Jacobs, P.; Abraham, J. P.


    Yes and no! Hurricanes are certainly natural, but human-caused climate change is supersizing them, and unbridled growth is exacerbating risk of major damages. The addition of heat-trapping gases to the atmosphere has led to observed increases in upper ocean heat content (OHC). This human-caused increase in OHC supports higher sea surface temperatures (SSTs) and atmospheric moisture. These elevated temperatures and increased moisture availability fuel tropical storms, allowing them to grow larger, longer lasting, and more intense, and with widespread heavy rainfalls. Our preliminary analysis of OHC through the August of 2017 shows not only was it by far the highest on record globally, but it was also the highest on record in the Gulf of Mexico prior to hurricane Harvey occurring. The human influence on the climate is also evident in rising sea levels, which increases risks from storm surges. These climatic changes are taking place against a background of growing habitation along coasts, which further increases the risk storms pose to life and property. This combination of planning choice and climatic change illustrates the tragedy of global warming, as evidenced by Harvey in Houston, Irma in the Caribbean and Florida, and Maria in Puerto Rico. However, future damages and loss of life can be mitigated, by stopping or slowing human-caused climate change, and through proactive planning (e.g., better building codes, increased-capacity drainage systems, shelters, and evacuation plans). We discuss the climatic and planning contexts of the unnatural disasters of the 2017 Atlantic Hurricane season, including novel indices of climate-hurricane influence.

  20. Review of 'Education in Parapsychology: Student and Instructor Perspectives' by Harvey Irwin


    Roe, Chris A


    Book review of Education in Parapsychology: Student and Instructor Perspectives by Harvey Irwin. Foreword by Nancy\\ud Zingrone. Gladesville, NSW, Australia: AIPR Mongraphs, 2013. Pp xv + 106. (paperback). ISBN 9780987077219.

  1. Contrasting Hydrodynamic and Environmental Effects of Hurricanes Harvey and Ike in a Highly Industrialized Estuary (United States)

    Kiaghadi, A.; Rifai, H. S.


    It is commonly believed that storm surge is the most destructive aspect of hurricanes. However, massive rainfall with a return period of 100 years or more induced by hurricanes can cause more catastrophic damage than losses caused by storm surge as demonstrated recently by hurricanes Harvey, Irma and Maria. In this study the hydrodynamics and environmental effects of hurricanes Ike and Harvey were compared and contrasted by linking hydrodynamic flow models with water quality models to simulate spills from storage tanks located in the Houston Ship Channel (HSC). Hurricane Ike with a maximum surge of 5.3 meters in Galveston Bay and Harvey with a maximum rainfall of 1.25 meters both struck the HSC region in Texas in 2008 and 2017, respectively. Both events resulted in numerous spills from municipal and industrial facilities, hazardous waste sites, superfund sites, and landfills. The Environmental Fluid Dynamic Code (EFDC) was coupled with the SWAN+ADCIRC hurricane simulation model to simulate Hurricane Ike and EFDC was coupled with USGS flow boundary conditions to model Hurricane Harvey. A conservative dye release was used to simulate a chemical release during each event. The results showed Hurricane Harvey caused higher water surface elevations within the HSC accompanied by longer and wider-spread land inundation. In contrast, higher water surface elevations were observed within the shallow side bays during Hurricane Ike that caused sediment resuspension and repartitioning of pollutants. Rapid spill mass transportation was observed for both hurricanes; 50% of total spill mass reached Galveston Bay in 20 and 22 hours after a spill event for Hurricane Harvey and Ike, respectively, and more than 90% of the spill mass reached the bay in 36 and 48 hours, respectively. Unlike Hurricane Harvey, the conservative tracer was spread almost 2.5 km upstream of the releasing point for Hurricane Ike due to surge. However, during Harvey, 35% more land was affected by the spilled

  2. Attribution of extreme rainfall from Hurricane Harvey, August 2017 (United States)

    van Oldenborgh, Geert Jan; van der Wiel, Karin; Sebastian, Antonia; Singh, Roop; Arrighi, Julie; Otto, Friederike; Haustein, Karsten; Li, Sihan; Vecchi, Gabriel; Cullen, Heidi


    During August 25-30, 2017, Hurricane Harvey stalled over Texas and caused extreme precipitation, particularly over Houston and the surrounding area on August 26-28. This resulted in extensive flooding with over 80 fatalities and large economic costs. It was an extremely rare event: the return period of the highest observed three-day precipitation amount, 1043.4 mm 3dy-1 at Baytown, is more than 9000 years (97.5% one-sided confidence interval) and return periods exceeded 1000 yr (750 mm 3dy-1) over a large area in the current climate. Observations since 1880 over the region show a clear positive trend in the intensity of extreme precipitation of between 12% and 22%, roughly two times the increase of the moisture holding capacity of the atmosphere expected for 1 °C warming according to the Clausius-Clapeyron (CC) relation. This would indicate that the moisture flux was increased by both the moisture content and stronger winds or updrafts driven by the heat of condensation of the moisture. We also analysed extreme rainfall in the Houston area in three ensembles of 25 km resolution models. The first also shows 2 × CC scaling, the second 1 × CC scaling and the third did not have a realistic representation of extreme rainfall on the Gulf Coast. Extrapolating these results to the 2017 event, we conclude that global warming made the precipitation about 15% (8%-19%) more intense, or equivalently made such an event three (1.5-5) times more likely. This analysis makes clear that extreme rainfall events along the Gulf Coast are on the rise. And while fortifying Houston to fully withstand the impact of an event as extreme as Hurricane Harvey may not be economically feasible, it is critical that information regarding the increasing risk of extreme rainfall events in general should be part of the discussion about future improvements to Houston’s flood protection system.

  3. Optical projects in the Clinic program at Harvey Mudd College (United States)

    Yang, Q.


    Clinic program is the senior capstone program at Harvey Mudd College (HMC). Multidisciplinary and industry-sponsored projects allow a team of students to solve a real-world problem over one academic year. Over its 50 plus years, Clinic program has completed numerous optics related projects. This report gives an overview of the Clinic program, reviews recent optical projects and discusses how this program supports the learning of the HMC engineering students. A few sample optical projects with more details are presented to provide an insight of what challenges that undergraduates can overcome. Students achieve learning within the optics discipline and the related engineering disciplines. The experiences in these optical projects indicate the great potential to bringing optical hands-on projects into the undergraduate level. Because of the general engineering curriculum at HMC, these projects often work the best with a multidisciplinary nature even if the core of the project is optically focused. Students gain leadership training, oral and written communication skills and experiences in team work. Close relationship with the sponsor liaisons allows for the students to gain skills in professional conduct, management of tight schedule and a specified budget, and it well prepares the students to their engineering practice. Optical projects have their own sets of specific challenges, so it needs to be chosen properly to match the undergraduate skill sets such as those of HMC engineering students.

  4. Emergency Response Imagery Related to Hurricanes Harvey, Irma, and Maria (United States)

    Worthem, A. V.; Madore, B.; Imahori, G.; Woolard, J.; Sellars, J.; Halbach, A.; Helmricks, D.; Quarrick, J.


    NOAA's National Geodetic Survey (NGS) and Remote Sensing Division acquired and rapidly disseminated emergency response imagery related to the three recent hurricanes Harvey, Irma, and Maria. Aerial imagery was collected using a Trimble Digital Sensor System, a high-resolution digital camera, by means of NOAA's King Air 350ER and DeHavilland Twin Otter (DHC-6) Aircraft. The emergency response images are used to assess the before and after effects of the hurricanes' damage. The imagery aids emergency responders, such as FEMA, Coast Guard, and other state and local governments, in developing recovery strategies and efforts by prioritizing areas most affected and distributing appropriate resources. Collected imagery is also used to provide damage assessment for use in long-term recovery and rebuilding efforts. Additionally, the imagery allows for those evacuated persons to see images of their homes and neighborhoods remotely. Each of the individual images are processed through ortho-rectification and merged into a uniform mosaic image. These remotely sensed datasets are publically available, and often used by web-based map servers as well as, federal, state, and local government agencies. This poster will show the imagery collected for these three hurricanes and the processes involved in getting data quickly into the hands of those that need it most.

  5. Harvey Cushing's ghosts: death and hauntings in modern medicine. (United States)

    Shin, Paul


    The passing of Yale School of Medicine's 2010 Bicentennial occasions a moment of reflecting on the past, present, and future of medical education and research at Yale and beyond. Last June, a ribbon-cutting ceremony inaugurated the opening of the Cushing Center in the Cushing-Whitney Medical Library. Named after Harvey Cushing, an early 20th-century neurosurgeon and former Yale College alum, the dual education/exhibition space now houses hundreds of gross brain specimens constituting the Cushing Tumor Registry. Originally a personal collection, Cushing donated his numerous medical specimens, photographs, and other medical relics from his deathbed, relinquishing the brains to Yale only under the condition that a suitable space be erected to preserve the many specimens. Some 70 years later and after nearly being destroyed, Cushing's wish is fully realized: The once desiccated, hidden brains have been painstakingly restored and are now on view in the Cushing Center. The brains express Cushing's singular and spectral worldview as a surgeon, artist, athlete, soldier, book collector, and historian.

  6. Harvey Cushing Treated the First Known Patient With Carney Complex. (United States)

    Tsay, Cynthia J; Stratakis, Constantine A; Faucz, Fabio Rueda; London, Edra; Stathopoulou, Chaido; Allgauer, Michael; Quezado, Martha; Dagradi, Terry; Spencer, Dennis D; Lodish, Maya


    Carney complex (CNC) is a syndrome characterized by hyperplasia of endocrine organs and may present with clinical features of Cushing syndrome and acromegaly due to functional adrenal and pituitary gland tumors. CNC has been linked to mutations in the regulatory subunit of protein kinase A type I-alpha ( PRKAR1A ) gene. Tissue samples were taken from the hypothalamus or thalamus or tumors of patients with pituitary adenomas seen and operated on by neurosurgeon Harvey Cushing between 1913 and 1932. Following DNA extraction, sequencing for genes of interest was attempted, including PRKAR1A , AIP , USP8 , GNAS1 , and GPR101 , to explore the possibility that these mutations associated with acromegaly, CNC, and Cushing syndrome have been conserved over time. We report a patient described by Dr. Cushing in 1914 with a clinical presentation and postmortem findings suggestive of CNC. Genetic sequencing of the hypothalamus and pituitary adenoma revealed a germline heterozygous p.Arg74His mutation in the PRKAR1A gene, a codon previously described as mutated in CNC, but with a novel amino acid change. This patient is, to our knowledge, the first molecularly confirmed individual with CNC. This case demonstrates the power of modern genetics in studying archived tissues and the importance of recording detailed clinical notes in the diagnosis of disease.

  7. Polarimetric Radar Retrievals in Southeast Texas During Hurricane Harvey (United States)

    Wolff, D. B.; Petersen, W. A.; Tokay, A.; Marks, D. A.; Pippitt, J. L.; Kirstetter, P. E.


    Hurricane Harvey hit the Texas Gulf Coast as a major hurricane on August 25, 2017 before exiting the state as a tropical storm on September 1, 2017. In its wake, it left a flood of historic proportions, with some areas measuring 60 inches of rain over a five-day period. Although the storm center stayed west of the immediate Houston area training bands of precipitation impacted the Houston area for five full days. The National Weather Service (NWS) WSR88D dual-polarimetric radar (KHGX), located southeast of Houston, maintained operations for the entirety of the event. The Harris County Flood Warning System (HCFWS) had 150 rain gauges deployed in its network and seven NWS Automated Surface Observing Systems (ASOS) rain gauges are also located in the area. In this study, we used the full radar data set to retrieve daily and event-total precipitation estimates within 120 km of the KHGX radar for the period August 25-29, 2017. These estimates were then compared to the HCFWS and ASOS gauges. Three different polarimetric hybrid rainfall retrievals were used: Ciffeli et al. 2011; Bringi et al. 2004; and, Chen et al. 2017. Each of these hybrid retrievals have demonstrated robust performance in the past. However, both daily and event-total comparisons from each of these retrievals compared to those of HCFWS and ASOS rain gauge networks resulted in significant underestimates by the radar retrievals. These radar underestimates are concerning. Sources of error and variance will be investigated to understand the source of radar-gauge disagreement. One current hypothesis is that due to the large number of small drops often found in hurricanes, the differential reflectivity and specific differential phase are relatively small so that the hybrid algorithms use only the reflectivity/rain rate procedure (so called Z-R relationships), and hence rarely invoke the ZDR or KDP procedures. Thus, an alternative Z-R relationship must be invoked to retrieve accurate rain rate estimates.

  8. A dark business, full of shadows: analogy and theology in William Harvey. (United States)

    Goldberg, Benjamin


    In a short work called De conceptione appended to the end of his Exercitationes de generatione animalium (1651), William Harvey developed a rather strange analogy. To explain how such marvelous productions as living beings were generated from the rather inauspicious ingredients of animal reproduction, Harvey argued that conception in the womb was like conception in the brain. It was mostly rejected at the time; it now seems a ludicrous theory based upon homonymy. However, this analogy offers insight into the structure and function of analogies in early modern natural philosophy. In this essay I hope to not only describe the complex nature of Harvey's analogy, but also offer a novel interpretation of his use of analogical reasoning, substantially revising the account offered by Guido Giglioni (1993). I discuss two points of conceptual change and negotiation in connection with Harvey's analogy, understanding it as both a confrontation between the border of the natural and the supernatural, as well as a moment in the history of psychology. My interpretation touches upon a number of important aspects, including why the analogy was rejected, how Harvey systematically deployed analogies according to his notions of natural philosophical method, how the analogy fits into contemporary discussions of analogies in science, and finally, how the analogy must be seen in the context of changing Renaissance notions of the science of the soul, ultimately confronting the problem of how to understand final causality in Aristotelian science. In connection with the last, I conclude the essay by turning to how Harvey embeds the analogy within a natural theological cosmology. Copyright © 2013. Published by Elsevier Ltd.

  9. William Harvey & Capillaries: Can You "Discover" Circulation without Connections between Arteries & Veins? (United States)

    Allchin, Douglas


    William Harvey's discovery of the presence of capillaries and the role played by them without actually seeing them highlights his power of observation and logic. However, his perspective could not be considered as new since he had adopted his disposition for ocular demonstration from Aristotle and Galen.

  10. Community structure and floristic composition of Quercus fusiformis and Carya illinoinensis forests of the Northeastern Coastal Plain, Coahuila, Mexico Estructura y composición florística de los bosques de Quercus fusiformis y Carya illinoinensis de la planicie costera del noreste, Coahuila, México

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    Juan Antonio Encina-Domínguez


    Full Text Available In order to describe community structure and richness in oak and walnut forests occurring along the San Rodrigo, San Diego, Escondido and Arroyo de las Vacas rivers on the Northeastern Coastal Plain (NE Coahuila, Mexico, we established 30 1 000-m² circular plots, where we measured diameter at breast height (DBH and tree heights. Tree regeneration and herb and shrub stratum were assessed in 5 2-m² quadrats per site. A total of 48 species distributed in 29 families were recorded. Families with the largest richness were Poaceae, Asteraceae, and Malvaceae. For the oak forest, tree stratum density and basal area values were 386 stems/ha and 24.36 m²/ha, respectively, whereas for the walnut forest the corresponding values were 302 stems/ha and 21.26 m²/ha. The species with the highest relative importance values were Quercus fusiformis (59.48% and Carya illinoinensis (57.58%. Total tree richness was 14 species, the most common ones being Celtis reticulata and Diospyros texana, followed closely by C. illinoinensis and Q. fusiformis. Anthropogenic impact appears to result in a poor regeneration reflected as a low sapling density, as well as in the reduction and fragmentation of these communities; in turn, this process has led to intrusions of species typical of the xerophytic Tamaulipan Thorn Scrub. Further studies are needed on the regeneration of the dominant species of these forests in order to describe their dynamics and to promote their preservation.Con la finalidad de conocer la estructura y la composición florística de los bosques de encino y nogal situados a lo largo de los ríos San Rodrigo, San Diego, Escondido y Arroyo de las Vacas en la planicie costera nororiental (NE de Coahuila, México, se establecieron 30 parcelas circulares de 1 000 m² en las que se midió el DAP y la altura de las especies arbóreas; además, se evaluó la regeneración de las especies arbóreas y el estrato herbáceo y arbustivo en 5 cuadros de 2 m² por sitio

  11. Harvey, Mark S. (2003: Catalogue of the smaller arachnid orders of the world: Amblypygi, Uropygi, Schizomida, Palpigradi, Ricinulei and Solifugae

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    Blick, Theo


    Full Text Available book review: Harvey Mark S. (2003: Catalogue of the smaller arachnid orders of the world: Amblypygi, Uropygi, Schizomida, Palpigradi, Ricinulei and Solifugae. Includes checklists for Europe of: Amblypygi, Uropygi, Schizomida, Palpigradi, Solifugae.

  12. Greek underpinnings to his methodology in unraveling De Motu Cordis and what Harvey has to teach us still today. (United States)

    Pasipoularides, Ares


    William Harvey's writings betray amazing insights born out of countless hours of thoughtful experimentation. Throughout his life, Harvey worked as a tireless and thoughtful researcher and a transmitter and intermediary between the ancient Greek natural philosophers and physicians and the "moderns," for whom he founded two forward-looking, interlinked sciences: modern physiology and nascent cardiology. Harvey's methodology and demonstrations were of such fundamental and standardizing nature as to secure the sure progress of these two sciences. Thus, he rendered to them such a service as Descartes's cogito ergo sum furnished to Philosophy in giving it a rational standard of certainty, for want of which the more speculative minds of that era were inundated with extraordinary conjectures. If Harvey disproved Galen, he absorbed and continued in his physiologic research many a principle from Aristotle, whose supreme disciple he remains. The guidance and authority of Aristotle were strong with him to the end. Harvey's account of the motions of the heart and blood in the circulation demonstrated that complex physiological systems can be represented in straightforward mechanical terms, a concept which has remained fundamental to the present day. The philosophical implication of William Harvey's discovery of the circulation of the blood was the resolute application of the experimental method to cardiology. In my judgment, he established today's forward-looking discipline of translational cardiovascular research. In due course, he should be widely acknowledged to have done so. © 2013 Elsevier Ireland Ltd. All rights reserved.

  13. Capitalismo, cidade e política na perspectiva de David Harvey

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    Marco Aurélio Santana


    Full Text Available O texto discute alguns eixos conceituais relevantes para a compreensão da obra de David Harvey, concentrando-se especificamente nas formulações do autor acerca da ideia de rearranjo espacial (spatial fix, de novo imperialismo (new imperialism e de acumulação mediante despossessão (acumulation by dispossession. Objetiva-se lidar também com o que se seriam os componentes da teoria critica de Harvey. Além disso, apresenta-se como tais ideias e formulações não podem ser plenamente entendidas sem o seu enraizamento nas reflexões do autor acerca das cidades.

  14. Brief communication: Post-event analysis of loss of life due to hurricane Harvey


    Jonkman, Sebastiaan N.; Godfroy, Maartje; Sebastian, Antonia; Kolen, Bas


    An analysis was made of the loss of life directly caused by hurricane Harvey. Information was collected for 70 fatalities that occurred directly due to the event. Most of the fatalities occurred in the greater Houston area, which was most severely affected by extreme rainfall and heavy flooding. The majority of fatalities in this area were recovered outside the designated 100 and 500 year flood zones. Most fatalities occurred due to drowning (81 %), particularly in and around vehicles...

  15. Comparing residential contamination in a Houston environmental justice neighborhood before and after Hurricane Harvey.

    Directory of Open Access Journals (Sweden)

    Jennifer A Horney

    Full Text Available Polycyclic aromatic hydrocarbons (PAHs are complex environmental toxicants. Exposure to them has been linked to adverse health outcomes including cancer, as well as diseases of the skin, liver, and immune system. Based on an ongoing community engagement partnership with stakeholder groups and residents, we conducted a small longitudinal study to assess domestic exposure to PAHs among residents of Manchester, an environmental justice neighborhood located in the East End of Houston, TX.In December, 2016, we used fiber wipes to collect samples of household dust from 25 homes in Manchester. Following Hurricane Harvey, in September 2017, we revisited 24 of the 25 homes to collect soil samples from the front yards of the same homes. Wipes and soil were analyzed for the presence of PAHs using gas chromatography-mass spectrometry (GC-MS methods. Principal component analysis plots, heatmaps, and PAH ratios were used to compare pre- and post-Hurricane Harvey samples.While direct comparison is not possible, we present three methods for comparing PAHs found in pre-hurricane fiber wipes and post-hurricane soil samples. The methods demonstrate that the PAHs found before and after Hurricane Harvey are likely from similar sources and that those sources are most likely to be associated with combustion. We also found evidence of redistribution of PAHs due to extreme flooding associated with Hurricane Harvey.Residents of the Manchester neighborhood of Houston, TX, are exposed to a range of PAHs in household dust and outdoor soil. While it was not possible to compare directly, we were able to use several methods to assess detected concentrations, changes in site-specific PAH allocations, and PAH origination. Additional research is needed to identify specific sources of domestic PAH exposure in these communities and continued work involving community members and policy makers should aim to develop interventions to reduce domestic exposure to and prevent negative

  16. Comparing residential contamination in a Houston environmental justice neighborhood before and after Hurricane Harvey. (United States)

    Horney, Jennifer A; Casillas, Gaston A; Baker, Erin; Stone, Kahler W; Kirsch, Katie R; Camargo, Krisa; Wade, Terry L; McDonald, Thomas J


    Polycyclic aromatic hydrocarbons (PAHs) are complex environmental toxicants. Exposure to them has been linked to adverse health outcomes including cancer, as well as diseases of the skin, liver, and immune system. Based on an ongoing community engagement partnership with stakeholder groups and residents, we conducted a small longitudinal study to assess domestic exposure to PAHs among residents of Manchester, an environmental justice neighborhood located in the East End of Houston, TX. In December, 2016, we used fiber wipes to collect samples of household dust from 25 homes in Manchester. Following Hurricane Harvey, in September 2017, we revisited 24 of the 25 homes to collect soil samples from the front yards of the same homes. Wipes and soil were analyzed for the presence of PAHs using gas chromatography-mass spectrometry (GC-MS) methods. Principal component analysis plots, heatmaps, and PAH ratios were used to compare pre- and post-Hurricane Harvey samples. While direct comparison is not possible, we present three methods for comparing PAHs found in pre-hurricane fiber wipes and post-hurricane soil samples. The methods demonstrate that the PAHs found before and after Hurricane Harvey are likely from similar sources and that those sources are most likely to be associated with combustion. We also found evidence of redistribution of PAHs due to extreme flooding associated with Hurricane Harvey. Residents of the Manchester neighborhood of Houston, TX, are exposed to a range of PAHs in household dust and outdoor soil. While it was not possible to compare directly, we were able to use several methods to assess detected concentrations, changes in site-specific PAH allocations, and PAH origination. Additional research is needed to identify specific sources of domestic PAH exposure in these communities and continued work involving community members and policy makers should aim to develop interventions to reduce domestic exposure to and prevent negative health outcomes

  17. Using integrated modeling for generating watershed-scale dynamic flood maps for Hurricane Harvey (United States)

    Saksena, S.; Dey, S.; Merwade, V.; Singhofen, P. J.


    Hurricane Harvey, which was categorized as a 1000-year return period event, produced unprecedented rainfall and flooding in Houston. Although the expected rainfall was forecasted much before the event, there was no way to identify which regions were at higher risk of flooding, the magnitude of flooding, and when the impacts of rainfall would be highest. The inability to predict the location, duration, and depth of flooding created uncertainty over evacuation planning and preparation. This catastrophic event highlighted that the conventional approach to managing flood risk using 100-year static flood inundation maps is inadequate because of its inability to predict flood duration and extents for 500-year or 1000-year return period events in real-time. The purpose of this study is to create models that can dynamically predict the impacts of rainfall and subsequent flooding, so that necessary evacuation and rescue efforts can be planned in advance. This study uses a 2D integrated surface water-groundwater model called ICPR (Interconnected Channel and Pond Routing) to simulate both the hydrology and hydrodynamics for Hurricane Harvey. The methodology involves using the NHD stream network to create a 2D model that incorporates rainfall, land use, vadose zone properties and topography to estimate streamflow and generate dynamic flood depths and extents. The results show that dynamic flood mapping captures the flood hydrodynamics more accurately and is able to predict the magnitude, extent and time of occurrence for extreme events such as Hurricane Harvey. Therefore, integrated modeling has the potential to identify regions that are more susceptible to flooding, which is especially useful for large-scale planning and allocation of resources for protection against future flood risk.

  18. How Investment in #GovTech Tools Helped with USGS Disaster Response During Hurricane Harvey (United States)

    Shah, S.; Pearson, D. K.


    Hurricane Harvey was an unprecedented storm event that not only included a challenge to decision-makers, but also the scientific community to provide clear and rapid dissemination of changing streamflow conditions and potential flooding concerns. Of primary importance to the U.S. Geological Survey (USGS) Texas Water Science Center was to focus on the availability of accessible data and scientific communication of rapidly changing water conditions across Texas with regards to heavy rainfall rates, rising rivers, streams, and lake elevations where USGS has monitoring stations. Infrastructure modernization leading to advanced GovTech practices and data visualization was key to the USGS role in providing data during Hurricane Harvey. In the last two years, USGS has released two web applications, "Texas Water Dashboard" and "Water-On-The-Go", which were heavily utilized by partners, local media, and municipal government officials. These tools provided the backbone for data distribution through both desktop and mobile applications as decision support during flood events. The combination of Texas Water Science Center web tools and the USGS National Water Information System handled more than 5-million data requests over the course of the storm. On the ground local information near Buffalo Bayou and Addicks/Barker Dams, as well as statewide support of USGS real-time scientific data, were delivered to the National Weather Service, U.S. Army Corps of Engineers, FEMA, Harris County Flood Control District, the general public, and others. This presentation will provide an overview of GovTech solutions used during Hurricane Harvey, including the history of USGS tool development, discussion on the public response, and future applications for helping provide scientific communications to the public.

  19. Prioritizing recovery of urban lifelines in the aftermath of hazards: Transportation in post-Harvey Houston (United States)

    Warner, M. E.; Bhatia, U.; Sela, L.; Wang, R.; Kodra, E.; Ganguly, A. R.


    A well-designed recovery strategy for lifeline infrastructure networks can lead to faster and more reliable restoration of essential services in the aftermath of natural catastrophes such as hurricanes or earthquakes. Urban and regional lifelines impact one another, while the recovery of urban lifelines in turn impacts regional infrastructural resilience, owing to the interdependence of lifelines across scales. Prior work by our team, often in collaboration, has led to the development of new recovery approaches based on network science and engineering, including centrality measures from network science, information theoretic metrics, and network optimization approaches. We have developed proof-of-concept demonstrations at both regional scales, such as for the Indian Railways Network and the US National Airspace System both subjected to multiple hazards, and to urban settings, such as the post-Hurricane recovery of combined power-subway system-of-systems in Boston and the New York City MTA after Hurricane Sandy. Here we make an attempt to understand how such methods may have been, or continue to be, applicable to the transportation network in Houston post-Harvey, and more broadly, how and to what extent lessons learned in urban and regional resilience may generalize across cases. We make an assessment of the state of the literature, process understanding, simulation models, data science methods, and best practices, necessary to address problems of this nature, with a particular focus on post-Harvey recovery of transportation services in Houston.

  20. Better Data Help Make Better Decisions: Disseminating Information During Hurricane Harvey (United States)

    Conner, K.; Lindner, J.; Moore, M.


    During large scale natural disasters, like hurricane Harvey, time-critical decisions are made on a constant basis. From evacuation orders, allocation of emergency resources, or allowing people to return home, decisions are only as good as the information upon which they are based. Better real-time data lead to better decisions which ultimately leads to improved disaster response and recovery. In 2015 Harris County Flood Control District (HCFCD) in Houston, TX began upgrading their automatic flood warning system (FWS) that dates back to the 1980s. The HCFCD network consists of 154 remote stations that report precipitation intensities and stream levels in near real time. Since the upgrades were completed in 2016 the Houston area has experienced multiple 100+ rain events, the most recent being Hurricane Harvey. The FWS generated accurate, reliable, real-time data throughout the entirety of the record breaking, four-day event. This information was disseminated to state, local and federal agencies, news outlets and the public via web sites and social media. Without this quality of data, disaster management decisions could not have been made effectively, ultimately leading to greater destruction of property and loss of life.

  1. Hurricane Harvey, Houston's Petrochemical Industry, and US Chemical Safety Policy: Impacts to Environmental Justice Communities (United States)

    Goldman, G. T.; Johnson, C.; Gutierrez, A.; Declet-Barreto, J.; Berman, E.; Bergman, A.


    When Hurricane Harvey made landfall outside Houston, Texas, the storm's wind speeds and unprecedented precipitation caused significant damage to the region's petrochemical infrastructure. Most notably, the company Arkema's Crosby facility suffered a power failure that led to explosions and incineration of six of its peroxide tanks. Chemicals released into the air from the explosions sent 15 emergency responders to the hospital with severe respiratory conditions and led to the evacuation of hundreds of surrounding households. Other petrochemical facilities faced other damages that resulted in unsafe and acute chemical releases into the air and water. What impacts did such chemical disasters have on the surrounding communities and emergency responders during Harvey's aftermath? What steps might companies have taken to prevent such chemical releases? And what chemical safety policies might have ensured that such disaster risks were mitigated? In this talk we will report on a survey of the extent of damage to Houston's oil and gas infrastructure and related chemical releases and discuss the role of federal chemical safety policy in preventing and mitigating the potential for such risks for future storms and other extreme weather and climate events. We will also discuss how these chemical disasters created acute toxics exposures on environmental justice communities already overburdened with chronic exposures from the petrochemical industry.

  2. 33 CFR 334.412 - Albemarle Sound, Pamlico Sound, Harvey Point and adjacent waters, NC; restricted area. (United States)


    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Albemarle Sound, Pamlico Sound, Harvey Point and adjacent waters, NC; restricted area. 334.412 Section 334.412 Navigation and Navigable Waters CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA...

  3. The weight of a storm: what observations of Earth surface deformation can tell us about Hurricane Harvey (United States)

    Borsa, A. A.; Mencin, D.; van Dam, T. M.


    Hurricane Harvey was the first major hurricane to impact the USA in over a decade, making landfall southwest of Houston, TX on August 26, 2017. Although Harvey was downgraded to a tropical storm shortly after landfall, it dropped a record amount of rain and was responsible for epic flooding across much of southeast Texas. While precipitation from a large storm like Harvey can be estimated from in-situ rain gages and Doppler radar, the accompanying surface water changes that lead to flooding are imperfectly observed due to the limited coverage of existing stream and lake level gages and because floodwaters inundate areas that are typically unmonitored. Earth's response to changes in surface loading provides an opportunity to observe the local hydrological response to Hurricane Harvey, specifically the dramatic changes in water storage coincident with and following the storm. Continuous GPS stations in southeastern Texas observed an average drop in land surface elevations of 1.8 cm following Harvey's landfall, followed by a gradual recovery to pre-storm levels over the following month. We interpret this surface motion as Earth's elastic response to the weight of cumulative rainfall during the storm, followed by rebound as that weight was removed by runoff and evapotranspiration (ET). Using observations of surface displacements from GPS stations in the HoustonNET and Plate Boundary Observatory networks, we model the daily water storage changes across Texas and Louisiana associated with Harvey. Because Harvey's barometric pressure low caused surface uplift at the cm level which temporarily obscured the subsidence signal due to precipitation, we model and remove the effect of atmospheric loading from the GPS data prior to our analysis. We also consider the effect on GPS position time series of non-tidal ocean loading due to the hurricane storm surge, which at the coast was an order of magnitude larger than loads due to precipitation alone. Finally, we use our results to

  4. Medium range forecasting of Hurricane Harvey flash flooding using ECMWF and social vulnerability data (United States)

    Pillosu, F. M.; Jurlina, T.; Baugh, C.; Tsonevsky, I.; Hewson, T.; Prates, F.; Pappenberger, F.; Prudhomme, C.


    During hurricane Harvey the greater east Texas area was affected by extensive flash flooding. Their localised nature meant they were too small for conventional large scale flood forecasting systems to capture. We are testing the use of two real time forecast products from the European Centre for Medium-range Weather Forecasts (ECMWF) in combination with local vulnerability information to provide flash flood forecasting tools at the medium range (up to 7 days ahead). Meteorological forecasts are the total precipitation extreme forecast index (EFI), a measure of how the ensemble forecast probability distribution differs from the model-climate distribution for the chosen location, time of year and forecast lead time; and the shift of tails (SOT) which complements the EFI by quantifying how extreme an event could potentially be. Both products give the likelihood of flash flood generating precipitation. For hurricane Harvey, 3-day EFI and SOT products for the period 26th - 29th August 2017 were used, generated from the twice daily, 18 km, 51 ensemble member ECMWF Integrated Forecast System. After regridding to 1 km resolution the forecasts were combined with vulnerable area data to produce a flash flood hazard risk area. The vulnerability data were floodplains (EU Joint Research Centre), road networks (Texas Department of Transport) and urban areas (Census Bureau geographic database), together reflecting the susceptibility to flash floods from the landscape. The flash flood hazard risk area forecasts were verified using a traditional approach against observed National Weather Service flash flood reports, a total of 153 reported flash floods have been detected in that period. Forecasts performed best for SOT = 5 (hit ratio = 65%, false alarm ratio = 44%) and EFI = 0.7 (hit ratio = 74%, false alarm ratio = 45%) at 72 h lead time. By including the vulnerable areas data, our verification results improved by 5-15%, demonstrating the value of vulnerability information within

  5. Impacts of a large array of offshore wind farms on precipitation during hurricane Harvey (United States)

    Pan, Y.; Archer, C. L.


    Hurricane Harvey brought to the Texas coast possibly the heaviest rain ever recorded in U.S. history, which then caused flooding at unprecedented levels. Previous studies have shown that large arrays of offshore wind farms can extract kinetic energy from a hurricane and thus reduce the wind and storm surge. This study will quantitatively test weather the offshore turbines may also affect precipitation patterns. The Weather Research Forecast model is employed to model Harvey and the offshore wind farms are parameterized as elevated drag and turbulence kinetic energy sources. The turbines (7.8 MW Enercon-126 with rotor diameter D=127 m) are placed along the coast of Texas and Louisiana within 100 km from the shore, where the water depth is below 200 meters. Three spacing between turbines are considered (with the number of turbines in parenthesis): 7D×7D (149,936), 9D×9D (84,339), and 11D×11D (56,226). A fourth case (9D×9D) with a smaller area and thus less turbines (33,363) is added to the simulations to emphasize the impacts of offshore turbines installed specifically to protect the city of Houston, which was flooded heavily during hurricane Harvey. The model is integrated for 24 hours from 00UTC Aug 26th, 2017 to 00UTC Aug 27th, 2017. Model results indicate that the offshore wind farms have a strong impact on the distribution of 24-hour accumulated precipitation, with an obvious decrease onshore, downstream of the wind farms, and an increase in the offshore areas, upstream of or within the wind farms. A sector covering the metro-Houston area is chosen to study the sensitivity of the four different wind farm layouts. The spatial-average 24-hour accumulated precipitation is decreased by 37%, 28%, 20% and 25% respectively for the four cases. Compared with the control case with no wind turbines, increased horizontal wind divergence and lower vertical velocity are found where the precipitation is reduced onshore, whereas increased horizontal wind convergence and

  6. NASA Earth Science Disasters Program Response Activities During Hurricanes Harvey, Irma, and Maria in 2017 (United States)

    Bell, J. R.; Schultz, L. A.; Molthan, A.; Kirschbaum, D.; Roman, M.; Yun, S. H.; Meyer, F. J.; Hogenson, K.; Gens, R.; Goodman, H. M.; Owen, S. E.; Lou, Y.; Amini, R.; Glasscoe, M. T.; Brentzel, K. W.; Stefanov, W. L.; Green, D. S.; Murray, J. J.; Seepersad, J.; Struve, J. C.; Thompson, V.


    The 2017 Atlantic hurricane season included a series of storms that impacted the United States, and the Caribbean breaking a 12-year drought of landfalls in the mainland United States (Harvey and Irma), with additional impacts from the combination of Irma and Maria felt in the Caribbean. These storms caused widespread devastation resulting in a significant need to support federal partners in response to these destructive weather events. The NASA Earth Science Disasters Program provided support to federal partners including the Federal Emergency Management Agency (FEMA) and the National Guard Bureau (NGB) by leveraging remote sensing and other expertise through NASA Centers and partners in academia throughout the country. The NASA Earth Science Disasters Program leveraged NASA mission products from the GPM mission to monitor cyclone intensity, assist with cyclone center tracking, and quantifying precipitation. Multispectral imagery from the NASA-NOAA Suomi-NPP mission and the VIIRS Day-Night Band proved useful for monitoring power outages and recovery. Synthetic Aperture Radar (SAR) data from the Copernicus Sentinel-1 satellites operated by the European Space Agency were used to create flood inundation and damage assessment maps that were useful for damage density mapping. Using additional datasets made available through the USGS Hazards Data Distribution System and the activation of the International Charter: Space and Major Disasters, the NASA Earth Science Disasters Program created additional flood products from optical and radar remote sensing platforms, along with PI-led efforts to derive products from other international partner assets such as the COSMO-SkyMed system. Given the significant flooding impacts from Harvey in the Houston area, NASA provided airborne L-band SAR collections from the UAVSAR system which captured the daily evolution of record flooding, helping to guide response and mitigation decisions for critical infrastructure and public safety. We

  7. Measuring the impostor phenomenon: a comparison of Clance's IP Scale and Harvey's I-P Scale. (United States)

    Holmes, S W; Kertay, L; Adamson, L B; Holland, C L; Clance, P R


    Many of the discrepancies reported to date in empirical investigations of the impostor phenomenon (IP) may be due in part to (a) the use of different methods for identifying individuals suffering from this syndrome (impostors), (b) the common use of a median split procedure to classify subjects and (c) the fact that subjects in many studies were drawn from impostor-prone samples. In this study, we compared the scores of independently identified impostors and nonimpostors on two instruments designed to measure the IP: Harvey's I-P Scale and Clance's IP Scale. The results suggest that Clance's scale may be the more sensitive and reliable instrument. Cutoff score suggestions for both instruments are offered.

  8. Epigenesis and the rationality of nature in William Harvey and Margaret Cavendish. (United States)

    Goldberg, Benjamin


    The generation of animals was a difficult phenomenon to explain in the seventeenth century, having long been a problem in natural philosophy, theology, and medicine. In this paper, I explore how generation, understood as epigenesis, was directly related to an idea of rational nature. I examine epigenesis-the idea that the embryo was constructed part-by-part, over time-in the work of two seemingly dissimilar English philosophers: William Harvey, an eclectic Aristotelian, and Margaret Cavendish, a radical materialist. I chart the ways that they understood and explained epigenesis, given their differences in philosophy and ontology. I argue for the importance of ideas of harmony and order in structuring their accounts of generation as a rational process. I link their experiences during the English Civil war to how they see nature as a possible source for the rationality and concord sorely missing in human affairs.

  9. Harvey Cushing, the spine surgeon: the surgical treatment of Pott disease. (United States)

    Bydon, Ali; Dasenbrock, Hormuzdiyar H; Pendleton, Courtney; McGirt, Matthew J; Gokaslan, Ziya L; Quinones-Hinojosa, Alfredo


    Review of historical archival records. Describe Harvey Cushing's patients with spinal pathology. Harvey Cushing was a pioneer of modern surgery but his work on spine remains largely unknown. Review of the Chesney Medical Archives of the Johns Hopkins Hospital from 1896 to 1912. This is the first time that Cushing's spinal cases while he was at the Johns Hopkins Hospital, including those with Pott disease, have been described.Cushing treated three young men with psoas abscesses secondary to Pott disease during his residency: he drained the abscesses, debrided any accompanying necrotic vertebral bodies, irrigated the cavity with salt, and left the incision open to close by secondary intention. Although Cushing used Koch's "tuberculin therapy" (of intravenous administration of isolated tubercular bacilli) in one patient, he did not do so in the other two, likely because of the poor response of this first patient. Later in his tenure, Cushing performed a laminectomy on a patient with kyphosis and paraplegia secondary to Pott disease. These cases provide a view of Cushing early in his career, pointing to the extraordinary degree of independence that he had during his residency under William Steward Halsted; these cases may have been important in the surgical upbringing both of Cushing and his coresident, William Stevenson Baer, who became the first professor of Orthopedics at Johns Hopkins Hospital. At the turn of the last century, Pott disease was primarily treated by immobilization with bed rest, braces, and plaster-of-paris jackets; some surgeons also employed gradual correction of the deformity by hyperextension. Patients who failed a trial of conservative therapy (of months to years) were treated with a laminectomy. However, the limitations of these strategies led to the development of techniques that form the basis of contemporary spine surgery-instrumentation and fusion.

  10. Assessing cognitive processes related to insomnia: A review and measurement guide for Harvey's cognitive model for the maintenance of insomnia. (United States)

    Hiller, Rachel M; Johnston, Anna; Dohnt, Hayley; Lovato, Nicole; Gradisar, Michael


    Cognitive processes play an important role in the maintenance, and treatment of sleep difficulties, including insomnia. In 2002, a comprehensive model was proposed by Harvey. Since its inception the model has received >300 citations, and provided researchers and clinicians with a framework for understanding and treating insomnia. The aim of this review is two-fold. First, we review the current literature investigating each factor proposed in Harvey's cognitive model of insomnia. Second, we summarise the psychometric properties of key measures used to assess the model's factors and mechanisms. From these aims, we demonstrate both strengths and limitations of the current knowledge of appropriate measurements associated with the model. This review aims to stimulate and guide future research in this area; and provide an understanding of the resources available to measure, target, and resolve cognitive factors that may maintain chronic insomnia. Copyright © 2014 Elsevier Ltd. All rights reserved.

  11. Attributable Human-Induced Changes in the Likelihood and Magnitude of the Observed Extreme Precipitation during Hurricane Harvey


    Risser, MD; Wehner, MF


    ©2017. American Geophysical Union. All Rights Reserved. Record rainfall amounts were recorded during Hurricane Harvey in the Houston, Texas, area, leading to widespread flooding. We analyze observed precipitation from the Global Historical Climatology Network with a covariate-based extreme value statistical analysis, accounting for both the external influence of global warming and the internal influence of El Niño–Southern Oscillation. We find that human-induced climate change likely increase...

  12. An irresponsible biography of the actor Laurence Harvey: motion pictures, white wine, older women & long thin cigarettes


    Brannon, Matthew


    Tiré du site Internet de Onestar Press: "Pocket edition of Laurence Harvey's "irresponsible" biography by Matthew Brannon. From the back cover of the book : Call yourself an actor ? You're not even a bad actor. You can't act at all, you fucking stupid hopeless sniveling little cunt-faced cunty fucking shit-faced arse-hole ... LAURENCE OLIVIER to Laurence Havery from Robert Stephen's "Knight errant : memoirs of a vagabond actor", Hodder and Stoughton, 1995.".

  13. Rapid-response flood mapping during Hurricanes Harvey, Irma and Maria by the Global Flood Partnership (GFP) (United States)

    Cohen, S.; Alfieri, L.; Brakenridge, G. R.; Coughlan, E.; Galantowicz, J. F.; Hong, Y.; Kettner, A.; Nghiem, S. V.; Prados, A. I.; Rudari, R.; Salamon, P.; Trigg, M.; Weerts, A.


    The Global Flood Partnership (GFP; is a multi-disciplinary group of scientists, operational agencies and flood risk managers focused on developing efficient and effective global flood management tools. Launched in 2014, its aim is to establish a partnership for global flood forecasting, monitoring and impact assessment to strengthen preparedness and response and to reduce global disaster losses. International organizations, the private sector, national authorities, universities and research agencies contribute to the GFP on a voluntary basis and benefit from a global network focused on flood risk reduction. At the onset of Hurricane Harvey, GFP was `activated' using email requests via its mailing service. Soon after, flood inundation maps, based on remote sensing analysis and modeling, were shared by different agencies, institutions, and individuals. These products were disseminated, to varying degrees of effectiveness, to federal, state and local agencies via emails and data-sharing services. This generated a broad data-sharing network which was utilized at the early stages of Hurricane Irma's impact, just two weeks after Harvey. In this presentation, we will describe the extent and chronology of the GFP response to both Hurricanes Harvey, Irma and Maria. We will assess the potential usefulness of this effort for event managers in various types of organizations and discuss future improvements to be implemented.

  14. Integration of Ground, Buoys, Satellite and Model data to map the Changes in Meteorological Parameters Associated with Harvey Hurricane (United States)

    Chauhan, A.; Sarkar, S.; Singh, R. P.


    The coastal areas have dense onshore and marine observation network and are also routinely monitored by constellation of satellites. The monitoring of ocean, land and atmosphere through a range of meteorological parameters, provides information about the land and ocean surface. Satellite data also provide information at different pressure levels that help to access the development of tropical storms and formation of hurricanes at different categories. Integration of ground, buoys, satellite and model data showing the changes in meteorological parameters during the landfall stages of hurricane Harvey will be discussed. Hurricane Harvey was one of the deadliest hurricanes at the Gulf coast which caused intense flooding from the precipitation. The various observation networks helped city administrators to evacuate the coastal areas, that minimized the loss of lives compared to the Galveston hurricane of 1900 which took 10,000 lives. Comparison of meteorological parameters derived from buoys, ground stations and satellites associated with Harvey and 2005 Katrina hurricane present some of the interesting features of the two hurricanes.

  15. Accessibility assessment of Houston's roadway network during Harvey through integration of observed flood impacts and hydrologic modeling (United States)

    Gidaris, I.; Gori, A.; Panakkal, P.; Padgett, J.; Bedient, P. B.


    The record-breaking rainfall produced over the Houston region by Hurricane Harvey resulted in catastrophic and unprecedented impacts on the region's infrastructure. Notably, Houston's transportation network was crippled, with almost every major highway flooded during the five-day event. Entire neighborhoods and subdivisions were inundated, rendering them completely inaccessible to rescue crews and emergency services. Harvey has tragically highlighted the vulnerability of major thoroughfares, as well as neighborhood roads, to severe inundation during extreme precipitation events. Furthermore, it has emphasized the need for detailed accessibility characterization of road networks under extreme event scenarios in order to determine which areas of the city are most vulnerable. This analysis assesses and tracks the accessibility of Houston's major highways during Harvey's evolution by utilizing road flood/closure data from the Texas DOT. In the absence of flooded/closure data for local roads, a hybrid approach is adopted that utilizes a physics-based hydrologic model to produce high-resolution inundation estimates for selected urban watersheds in the Houston area. In particular, hydrologic output in the form of inundation depths is used to estimate the operability of local roads. Ultimately, integration of hydrologic-based estimation of road conditions with observed data from DOT supports a network accessibility analysis of selected urban neighborhoods. This accessibility analysis can identify operable routes for emergency response (rescue crews, medical services, etc.) during the storm event.

  16. Collaborative, Rapid Mapping of Water Extents During Hurricane Harvey Using Optical and Radar Satellite Sensors (United States)

    Muench, R.; Jones, M.; Herndon, K. E.; Bell, J. R.; Anderson, E. R.; Markert, K. N.; Molthan, A.; Adams, E. C.; Shultz, L.; Cherrington, E. A.; Flores, A.; Lucey, R.; Munroe, T.; Layne, G.; Pulla, S. T.; Weigel, A. M.; Tondapu, G.


    On August 25, 2017, Hurricane Harvey made landfall between Port Aransas and Port O'Connor, Texas, bringing with it unprecedented amounts of rainfall and flooding. In times of natural disasters of this nature, emergency responders require timely and accurate information about the hazard in order to assess and plan for disaster response. Due to the extreme flooding impacts associated with Hurricane Harvey, delineations of water extent were crucial to inform resource deployment. Through the USGS's Hazards Data Distribution System, government and commercial vendors were able to acquire and distribute various satellite imagery to analysts to create value-added products that can be used by these emergency responders. Rapid-response water extent maps were created through a collaborative multi-organization and multi-sensor approach. One team of researchers created Synthetic Aperture Radar (SAR) water extent maps using modified Copernicus Sentinel data (2017), processed by ESA. This group used backscatter images, pre-processed by the Alaska Satellite Facility's Hybrid Pluggable Processing Pipeline (HyP3), to identify and apply a threshold to identify water in the image. Quality control was conducted by manually examining the image and correcting for potential errors. Another group of researchers and graduate student volunteers derived water masks from high resolution DigitalGlobe and SPOT images. Through a system of standardized image processing, quality control measures, and communication channels the team provided timely and fairly accurate water extent maps to support a larger NASA Disasters Program response. The optical imagery was processed through a combination of various band thresholds by using Normalized Difference Water Index (NDWI), Modified Normalized Water Index (MNDWI), Normalized Difference Vegetation Index (NDVI), and cloud masking. Several aspects of the pre-processing and image access were run on internal servers to expedite the provision of images to

  17. Collaborative, Rapid Mapping of Water Extents During Hurricane Harvey Using Optical and Radar Satellite Sensors (United States)

    Muench, Rebekke; Jones, Madeline; Herndon, Kelsey; Schultz, Lori; Bell, Jordan; Anderson, Eric; Markert, Kel; Molthan, Andrew; Adams, Emily; Cherrington, Emil; hide


    On August 25, 2017, Hurricane Harvey made landfall between Port Aransas and Port O'Connor, Texas, bringing with it unprecedented amounts of rainfall and record flooding. In times of natural disasters of this nature, emergency responders require timely and accurate information about the hazard in order to assess and plan for disaster response. Due to the extreme flooding impacts associated with Hurricane Harvey, delineations of water extent were crucial to inform resource deployment. Through the USGS's Hazards Data Distribution System, government and commercial vendors were able to acquire and distribute various satellite imagery to analysts to create value-added products that can be used by these emergency responders. Rapid-response water extent maps were created through a collaborative multi-organization and multi-sensor approach. One team of researchers created Synthetic Aperture Radar (SAR) water extent maps using modified Copernicus Sentinel data (2017), processed by ESA. This group used backscatter images, pre-processed by the Alaska Satellite Facility's Hybrid Pluggable Processing Pipeline (HyP3), to identify and apply a threshold to identify water in the image. Quality control was conducted by manually examining the image and correcting for potential errors. Another group of researchers and graduate student volunteers derived water masks from high resolution DigitalGlobe and SPOT images. Through a system of standardized image processing, quality control measures, and communication channels the team provided timely and fairly accurate water extent maps to support a larger NASA Disasters Program response. The optical imagery was processed through a combination of various band thresholds and by using Normalized Difference Water Index (NDWI), Modified Normalized Water Index (MNDWI), Normalized Difference Vegetation Index (NDVI), and cloud masking. Several aspects of the pre-processing and image access were run on internal servers to expedite the provision of

  18. Hurricane Harvey: Infrastructure Damage Assessment of Texas' Central Gulf Coast Region (United States)

    Mooney, W. D.; Fovenyessy, S.; Patterson, S. F.


    We report a detailed ground-based damage survey for Hurricane Harvey, the first major hurricane to make landfall along the central Texas coast since the 1970 Category 3 Hurricane Celia. Harvey, a Category 4 storm, made landfall near Rockport, Texas on August 25th, 2017 at 10 PM local time. From September 2nd to 5th we visited Rockport and 22 nearby cities to assess the severity of the damage. Nearly all damage observed occurred as a direct result of the hurricane-force winds, rather than a storm surge. This observation is in contrast to the severe damage caused by both high winds and a significant storm surge, locally 3 to 5 m in height, in the 2013 Category 5 Hurricane Haiyan, that devastated the Philippines. We have adopted a damage scale and have given an average damage score for each of the areas investigated. Our damage contour map illustrates the areal variation in damage. The damage observed was widespread with a high degree of variability. Different types of damage included: (1) fallen fences and utility poles; (2) trees with branches broken or completely snapped in half; (3) business signs that were either partially or fully destroyed; (4) partially sunken or otherwise damaged boats; (5) and sheet metal sheds either completely or partially destroyed. There was also varying degrees of damage to both residential and commercial structures. Many homes had (6) roof damage, ranging from minor damage to complete destruction of the roof and second story, and (7) siding damage, where parts or whole sections of the homes siding had been removed. The area that had the lowest average damage score was Corpus Christi, and the areas that had the highest average damage score was both Fulton and Holiday Beach. There is no simple, uniform pattern of damage distribution. Rather, the damage was scattered, revealing hot spots of areas that received more damage than the surrounding area. However, when compared to the NOAA wind swath map, all of the damage was contained within

  19. Teorizando o mundo contemporâneo: Robert Brenner; Giovanni Arrighi; David Harvey

    Directory of Open Access Journals (Sweden)

    Moishe Postone


    Full Text Available O artigo busca apreender as profundas transformações sociais, políticas, econômicas e culturais que marcaram as três últimas décadas, em contraste com o período de prosperidade subseqüente à Segunda Guerra Mundial. Para tanto, o autor analisa criticamente três obras específicas que abordam o período: "The economics of global turbulence", de Robert Brenner, O longo século XX, de Giovanni Arrighi, e A condição pós-moderna, de David Harvey. O procedimento metateórico adotado permite apontar os requisitos de uma teoria crítica adequada ao capitalismo contemporâneo.The article aims to apprehend the deep social, political, economic and cultural transformations that characterized the three last decades, in contrast with the prosperity period following the Second World War. Therefore, the author critically analyses three specific works that deal with that period: "The economics of global turbulence", by Robert Brenner, The long Twentieth Century, by Giovanni Arrighi, and The conditions of postmodernity, by David Haravey. The metatheoric procedure adopted allows him to indicate the requisites of an adequate critical theory of contemporary capitalism.

  20. Combining Passive Microwave Sounders with CYGNSS information for improved retrievals: Observations during Hurricane Harvey (United States)

    Schreier, M. M.


    The launch of CYGNSS (Cyclone Global Navigation Satellite System) has added an interesting component to satellite observations: it can provide wind speeds in the tropical area with a high repetition rate. Passive microwave sounders that are overpassing the same region can benefit from this information, when it comes to the retrieval of temperature or water profiles: the uncertainty about wind speeds has a strong impact on emissivity and reflectivity calculations with respect to surface temperature. This has strong influences on the uncertainty of retrieval of temperature and water content, especially under extreme weather conditions. Adding CYGNSS information to the retrieval can help to reduce errors and provide a significantly better sounder retrieval. Based on observations during Hurricane Harvey, we want to show the impact of CYGNSS data on the retrieval of passive microwave sensors. We will show examples on the impact on the retrieval from polar orbiting instruments, like the Advanced Technology Microwave Sounder (ATMS) and AMSU-A/B on NOAA-18 and 19. In addition we will also show the impact on retrievals from HAMSR (High Altitude MMIC Sounding Radiometer), which was flying on the Global Hawk during the EPOCH campaign. We will compare the results with other observations and estimate the impact of additional CYGNSS information on the microwave retrieval, especially on the impact in error and uncertainty reduction. We think, that a synergetic use of these different data sources could significantly help to produce better assimilation products for forecast assimilation.

  1. Race, Income Inequality, and Impervious Surfaces in Relation to Flooding Associated with Hurricane Harvey (United States)

    de Sherbinin, A. M.; Mills, J.; Borkovska, O.


    Differential vulnerability is a concept that suggests that certain demographic groups - the poor, less educated, or minorities - are likely to be more impacted by climate extremes such as floods owing to their higher sensitivity and lower adaptive capacity. Differential exposure represents the concept that these same groups may be more highly exposed to flood events by virtue of their residing in less desirable, low-lying neighborhoods with higher percentages of impervious surface cover. This paper tests the hypothesis that poor communities of color were differentially exposed to flood risks in the aftermath of Hurricane Harvey, which struck Houston, Texas in August 2017. We explore the spatial relationship among census tracts with high percentages of low income communities of color, those with high percentages of impervious surface, and those most impacted by floods. We incorporat datasets disseminated by the NASA Socioeconomic Data and Application Center (SEDAC) - the Global Man-made Impervious Surface (GMIS) data set and the U.S. Census Grids 2010 - together with the American Community Survey (ACS) 2011-2015 and flood extent and depth data from FEMA. Preliminary analysis suggests that predominantly non-white neighborhoods have higher percentages of impervious surface cover, but that impervious surface cover is negatively correlated with flood risk. This paper will situate these findings in the context of a larger body of research exploring differential exposure to flood risks during Hurricanes Katrina and Sandy, as well as differential exposure to extreme heat in urban environments in Houston and beyond.

  2. Development of Anatomophysiologic Knowledge Regarding the Cardiovascular System: From Egyptians to Harvey

    Energy Technology Data Exchange (ETDEWEB)

    Bestetti, Reinaldo Bulgarelli, E-mail:; Restini, Carolina Baraldi A.; Couto, Lucélio B. [Universidade de Ribeirão Preto - UNAERP, Ribeirão Preto, SP (Brazil)


    Our knowledge regarding the anatomophysiology of the cardiovascular system (CVS) has progressed since the fourth millennium BC. In Egypt (3500 BC), it was believed that a set of channels are interconnected to the heart, transporting air, urine, air, blood, and the soul. One thousand years later, the heart was established as the center of the CVS by the Hippocratic Corpus in the medical school of Kos, and some of the CVS anatomical characteristics were defined. The CVS was known to transport blood via the right ventricle through veins and the pneuma via the left ventricle through arteries. Two hundred years later, in Alexandria, following the development of human anatomical dissection, Herophilus discovered that arteries were 6 times thicker than veins, and Erasistratus described the semilunar valves, emphasizing that arteries were filled with blood when ventricles were empty. Further, 200 years later, Galen demonstrated that arteries contained blood and not air. With the decline of the Roman Empire, Greco-Roman medical knowledge about the CVS was preserved in Persia, and later in Islam where, Ibn Nafis inaccurately described pulmonary circulation. The resurgence of dissection of the human body in Europe in the 14th century was associated with the revival of the knowledge pertaining to the CVS. The main findings were the description of pulmonary circulation by Servetus, the anatomical discoveries of Vesalius, the demonstration of pulmonary circulation by Colombo, and the discovery of valves in veins by Fabricius. Following these developments, Harvey described blood circulation.

  3. Development of Anatomophysiologic Knowledge Regarding the Cardiovascular System: From Egyptians to Harvey

    Directory of Open Access Journals (Sweden)

    Reinaldo Bulgarelli Bestetti


    Full Text Available Our knowledge regarding the anatomophysiology of the cardiovascular system (CVS has progressed since the fourth millennium BC. In Egypt (3500 BC, it was believed that a set of channels are interconnected to the heart, transporting air, urine, air, blood, and the soul. One thousand years later, the heart was established as the center of the CVS by the Hippocratic Corpus in the medical school of Kos, and some of the CVS anatomical characteristics were defined. The CVS was known to transport blood via the right ventricle through veins and the pneuma via the left ventricle through arteries. Two hundred years later, in Alexandria, following the development of human anatomical dissection, Herophilus discovered that arteries were 6 times thicker than veins, and Erasistratus described the semilunar valves, emphasizing that arteries were filled with blood when ventricles were empty. Further, 200 years later, Galen demonstrated that arteries contained blood and not air. With the decline of the Roman Empire, Greco-Roman medical knowledge about the CVS was preserved in Persia, and later in Islam where, Ibn Nafis inaccurately described pulmonary circulation. The resurgence of dissection of the human body in Europe in the 14th century was associated with the revival of the knowledge pertaining to the CVS. The main findings were the description of pulmonary circulation by Servetus, the anatomical discoveries of Vesalius, the demonstration of pulmonary circulation by Colombo, and the discovery of valves in veins by Fabricius. Following these developments, Harvey described blood circulation.

  4. Observations of Building Performance under Combined Wind and Surge Loading from Hurricane Harvey (United States)

    Lombardo, F.; Roueche, D. B.; Krupar, R. J.; Smith, D. J.; Soto, M. G.


    Hurricane Harvey struck the Texas coastline on August 25, 2017, as a Category 4 hurricane - the first major hurricane to reach the US in twelve years. Wind gusts over 130 mph and storm surge as high as 12.5 ft caused widespread damage to buildings and critical infrastructure in coastal communities including Rockport, Fulton, Port Aransas and Aransas Pass. This study presents the methodology and preliminary observations of a coordinated response effort to document residential building performance under wind and storm surge loading. Over a twelve day survey period the study team assessed the performance of more than 1,000 individual, geo-located residential buildings. Assessments were logged via a smartphone application to facilitate rapid collection and collation of geotagged photographs, building attributes and structural details, and structural damage observations. Detailed assessments were also made of hazard intensity, specifically storm surge heights and both wind speed and direction indicators. Preliminary observations and findings will be presented, showing strong gradients in damage between inland and coastal regions of the affected areas that may be due in part to enhanced individual loading effects of wind and storm surge and potentially joint-hazard loading effects. Contributing factors to the many cases of disproportionate damage observed in close proximity will also be discussed. Ongoing efforts to relate building damage to near-surface hazard measurements (e.g., radar, anemometry) in close proximity will also be described.

  5. Impact of GPM Rainrate Data Assimilation on Simulation of Hurricane Harvey (2017) (United States)

    Li, Xuanli; Srikishen, Jayanthi; Zavodsky, Bradley; Mecikalski, John


    Built upon Tropical Rainfall Measuring Mission (TRMM) legacy for next-generation global observation of rain and snow. The GPM was launched in February 2014 with Dual-frequency Precipitation Radar (DPR) and GPM Microwave Imager (GMI) onboard. The GPM has a broad global coverage approximately 70deg S -70deg N with a swath of 245/125-km for the Ka (35.5 GHz)/Ku (13.6 GHz) band radar, and 850-km for the 13-channel GMI. GPM also features better retrievals for heavy, moderate, and light rain and snowfall To develop methodology to assimilate GPM surface precipitation data with Grid-point Statistical Interpolation (GSI) data assimilation system and WRF ARW model To investigate the potential and the value of utilizing GPM observation into NWP for operational environment The GPM rain rate data has been successfully assimilated using the GSI rain data assimilation package. Impacts of rain rate data have been found in temperature and moisture fields of initial conditions. 2.Assimilation of either GPM IMERG or GPROF rain product produces significant improvement in precipitation amount and structure for Hurricane Harvey (2017) forecast. Since IMERG data is available half-hourly, further forecast improvement is expected with continuous assimilation of IMERG data

  6. Development of Anatomophysiologic Knowledge Regarding the Cardiovascular System: From Egyptians to Harvey

    International Nuclear Information System (INIS)

    Bestetti, Reinaldo Bulgarelli; Restini, Carolina Baraldi A.; Couto, Lucélio B.


    Our knowledge regarding the anatomophysiology of the cardiovascular system (CVS) has progressed since the fourth millennium BC. In Egypt (3500 BC), it was believed that a set of channels are interconnected to the heart, transporting air, urine, air, blood, and the soul. One thousand years later, the heart was established as the center of the CVS by the Hippocratic Corpus in the medical school of Kos, and some of the CVS anatomical characteristics were defined. The CVS was known to transport blood via the right ventricle through veins and the pneuma via the left ventricle through arteries. Two hundred years later, in Alexandria, following the development of human anatomical dissection, Herophilus discovered that arteries were 6 times thicker than veins, and Erasistratus described the semilunar valves, emphasizing that arteries were filled with blood when ventricles were empty. Further, 200 years later, Galen demonstrated that arteries contained blood and not air. With the decline of the Roman Empire, Greco-Roman medical knowledge about the CVS was preserved in Persia, and later in Islam where, Ibn Nafis inaccurately described pulmonary circulation. The resurgence of dissection of the human body in Europe in the 14th century was associated with the revival of the knowledge pertaining to the CVS. The main findings were the description of pulmonary circulation by Servetus, the anatomical discoveries of Vesalius, the demonstration of pulmonary circulation by Colombo, and the discovery of valves in veins by Fabricius. Following these developments, Harvey described blood circulation

  7. Quantification of Interbasin Transfers into the Addicks Reservoir during Hurricane Harvey (United States)

    Sebastian, A.; Juan, A.; Gori, A.; Maulsby, F.; Bedient, P. B.


    Between August 25 and 30, Hurricane Harvey dropped unprecedented rainfall over southeast Texas causing widespread flooding in the City of Houston. Water levels in the Addicks and Barker reservoirs, built in the 1940s to protect downtown Houston, exceeded previous records by approximately 2 meters. Concerns regarding structural integrity of the dams and damage to neighbourhoods in within the reservoir pool resulted in controlled releases into Buffalo Bayou, flooding an estimated 4,000 additional structures downstream of the dams. In 2016, during the Tax Day it became apparent that overflows from Cypress Creek in northern Harris County substantially contribute to water levels in Addicks. Prior to this event, little was known about the hydrodynamics of this overflow area or about the additional stress placed on Addicks and Barker reservoirs due to the volume of overflow. However, this information is critical for determining flood risk in Addicks Watershed, and ultimately Buffalo Bayou. In this study, we utilize the recently developed HEC-RAS 2D model the interbasin transfer that occurs between Cypress Creek Watershed and Addicks Reservoir to quantify the volume and rate at which water from Cypress enters the reservoir during extreme events. Ultimately, the results of this study will help inform the official hydrologic models used by HCFCD to determine reservoir operation during future storm events and better inform residents living in or above the reservoir pool about their potential flood risk.

  8. Harvey Cushing’s Ghosts: Death and Hauntings in Modern Medicine (United States)

    Shin, Paul


    The passing of Yale School of Medicine’s 2010 Bicentennial occasions a moment of reflecting on the past, present, and future of medical education and research at Yale and beyond. Last June, a ribbon-cutting ceremony inaugurated the opening of the Cushing Center in the Cushing-Whitney Medical Library. Named after Harvey Cushing, an early 20th-century neurosurgeon and former Yale College alum, the dual education/exhibition space now houses hundreds of gross brain specimens constituting the Cushing Tumor Registry. Originally a personal collection, Cushing donated his numerous medical specimens, photographs, and other medical relics from his deathbed, relinquishing the brains to Yale only under the condition that a suitable space be erected to preserve the many specimens. Some 70 years later and after nearly being destroyed, Cushing’s wish is fully realized: The once desiccated, hidden brains have been painstakingly restored and are now on view in the Cushing Center. The brains express Cushing’s singular and spectral worldview as a surgeon, artist, athlete, soldier, book collector, and historian. PMID:21698039

  9. [Reconsideration of the "conversion theory" from the primacy of the heart to the primacy of the blood--William Harvey's observation, logic and the construction of the exercitatio]. (United States)

    Tsukisawa, M


    In De motu cordis, W. Harvey sometimes waxes lyrical on the primacy of the heart. In his another treatise, De generatione, however, he insists on the primacy of the blood. The "conversion theory" explained this discrepancy with Harvey's conversion as caused by his discovery of the antiquity of the blood. But Whitterridge showed that Harvey had already described the antiquity of the blood in his earliest notebook, Prelectiones. As shown in this article, Harvey's observation was not a mere accidental discovery; based on the "classic questions", it was continuously and persistently conducted until he was assured of having seen the blood to exist prior to the pulse and movement to occur in the blood. While this crucial observation was not yet made in Prelectiones and De motu cordis, it was described as crucial evidence of the theory of the primacy of the blood in De generatione, in which this new theory was introduced as an independent topic of the exercitatio. The topic of the order of the generation was a crucial issue in the theoretical medicine of Harvey's days. That is, the Aristotelian primacy of the heart had been seriously challenged by the Galenic tripartite theory which pursued the antiquity of three organs. Harvey's theory, or the primacy of the blood, seems to consists with Aristotle's premise, in that it asserts the existance of the only source of all functions in living animals. Harvey's theory, however, was confronted, on the other hand, with Aristotle's another inconsistency, namely, the issue of two definitions about anima. We must consider the construction and strategy of the exercitatio in Harvey's days to understand the exact meaning of the primacy of the heart in De motu cordis. In De motu cordis, Harvey did not use the primacy of the heart in a central part of the exercitatio, namely, in confirming his unprecedented theory, the circulation of the blood, but he settled this Aristotelian premise in a marginal part, namely, in ratiocinating the final

  10. Hurricane Harvey Riverine Flooding: Part 1 - Reconstruction of Hurricane Harvey Flooding for Harris County, TX using a GPU-accelerated 2D flood model for post-flood hazard analysis (United States)

    Kalyanapu, A. J.; Dullo, T. T.; Gangrade, S.; Kao, S. C.; Marshall, R.; Islam, S. R.; Ghafoor, S. K.


    Hurricane Harvey that made landfall in the southern Texas this August is one of the most destructive hurricanes during the 2017 hurricane season. During its active period, many areas in coastal Texas region received more than 40 inches of rain. This downpour caused significant flooding resulting in about 77 casualties, displacing more than 30,000 people, inundating hundreds of thousands homes and is currently estimated to have caused more than $70 billion in direct damage. One of the significantly affected areas is Harris County where the city of Houston, TX is located. Covering over two HUC-8 drainage basins ( 2702 mi2), this county experienced more than 80% of its annual average rainfall during this event. This study presents an effort to reconstruct flooding caused by extreme rainfall due to Hurricane Harvey in Harris County, Texas. This computationally intensive task was performed at a 30-m spatial resolution using a rapid flood model called Flood2D-GPU, a graphics processing unit (GPU) accelerated model, on Oak Ridge National Laboratory's (ORNL) Titan Supercomputer. For this task, the hourly rainfall estimates from the National Center for Environmental Prediction Stage IV Quantitative Precipitation Estimate were fed into the Variable Infiltration Capacity (VIC) hydrologic model and Routing Application for Parallel computation of Discharge (RAPID) routing model to estimate flow hydrographs at 69 locations for Flood2D-GPU simulation. Preliminary results of the simulation including flood inundation extents, maps of flood depths and inundation duration will be presented. Future efforts will focus on calibrating and validating the simulation results and assessing the flood damage for better understanding the impacts made by Hurricane Harvey.

  11. Multiple regions of Harvey sarcoma virus RNA can dimerize in vitro. (United States)

    Feng, Y X; Fu, W; Winter, A J; Levin, J G; Rein, A


    Retroviruses contain a dimeric RNA consisting of two identical molecules of plus-strand genomic RNA. The structure of the linkage between the two monomers is not known, but they are believed to be joined near their 5' ends. Darlix and coworkers have reported that transcripts of retroviral RNA sequences can dimerize spontaneously in vitro (see, for example, E. Bieth, C. Gabus, and J. L. Darlix, Nucleic Acids Res. 18:119-127, 1990). As one approach to identification of sequences which might participate in the linkage, we have mapped sequences derived from the 5' 378 bases of Harvey sarcoma virus (HaSV) RNA which can dimerize in vitro. We found that at least three distinct regions, consisting of nucleotides 37 to 229, 205 to 272, and 271 to 378, can form these dimers. Two of these regions contain nucleotides 205 to 226; computer analysis suggests that this region can form a stem-loop with an inverted repeat in the loop. We propose that this hypothetical structure is involved in dimer formation by these two transcripts. We also compared the thermal stabilities of each of these dimers with that of HaSV viral RNA. Dimers of nucleotides 37 to 229 and 205 to 272 both exhibited melting temperatures near that of viral RNA, while dimers of nucleotides 271 to 378 are quite unstable. We also found that dimers of nucleotides 37 to 378 formed at 37 degrees C are less thermostable than dimers of the same RNA formed at 55 degrees C. It seems possible that bases from all of these regions participate in the dimer linkage present in viral RNA.

  12. Using Satellite Imagery to Quantify Water Quality Impacts and Recovery from Hurricane Harvey (United States)

    Sobel, R. S.; Kiaghadi, A.; Rifai, H. S.


    Record rainfall during Hurricane Harvey in the Houston-Galveston region generated record flows containing suspended sediment that was likely contaminated. Conventional water quality monitoring requires resource intensive field campaigns, and produces sparse datasets. In this study, satellite data were used to quantify suspended sediment (TSS) concentrations and mass within the region's estuary system and to estimate sediment deposition and transport. A conservative two band, red-green empirical regression was developed from the Sentinel 2 satellite to calculate TSS concentrations and masses. The regression was calibrated with an R2 = 0.73 (n=28) and validated with an R2 = 0.75 (n=12) using 2016 & 2017 imagery. TSS concentrations four days, 14 days, and 44 days post-storm were compared with a reference condition three days before storm arrival. Results indicated that TSS concentrations were an average of 100% higher four days post-storm, and 150% higher after 14 days, however, the average concentration on day 144 was only seven percent higher than the reference condition, suggesting the estuary system is approaching recovery to pre-storm conditions. Sediment masses were determined from the regressed concentrations and water volumes estimated from a bottom elevation grid combined with water surface elevations observed coincidently with the satellite image. While water volumes were only 13% higher on both day four and day 14 post-storm; sediment masses were 195% and 227% higher than the reference condition, respectively. By day 44, estuary sediment mass returned to just 2.9% above the reference load. From a mechanistic standpoint, the elevated TSS concentrations on day four indicated an advection-based regime due to stormwater runoff draining through the estuarine system. Sometime, however, between days 14 and 44, transport conditions switched from advection-dominated to deposition-driven as indicated by the near normal TSS concentrations on day 44.

  13. Mapping Daily and Maximum Flood Extents at 90-m Resolution During Hurricanes Harvey and Irma Using Passive Microwave Remote Sensing (United States)

    Galantowicz, J. F.; Picton, J.; Root, B.


    Passive microwave remote sensing can provided a distinct perspective on flood events by virtue of wide sensor fields of view, frequent observations from multiple satellites, and sensitivity through clouds and vegetation. During Hurricanes Harvey and Irma, we used AMSR2 (Advanced Microwave Scanning Radiometer 2, JAXA) data to map flood extents starting from the first post-storm rain-free sensor passes. Our standard flood mapping algorithm (FloodScan) derives flooded fraction from 22-km microwave data (AMSR2 or NASA's GMI) in near real time and downscales it to 90-m resolution using a database built from topography, hydrology, and Global Surface Water Explorer data and normalized to microwave data footprint shapes. During Harvey and Irma we tested experimental versions of the algorithm designed to map the maximum post-storm flood extent rapidly and made a variety of map products available immediately for use in storm monitoring and response. The maps have several unique features including spanning the entire storm-affected area and providing multiple post-storm updates as flood water shifted and receded. From the daily maps we derived secondary products such as flood duration, maximum flood extent (Figure 1), and flood depth. In this presentation, we describe flood extent evolution, maximum extent, and local details as detected by the FloodScan algorithm in the wake of Harvey and Irma. We compare FloodScan results to other available flood mapping resources, note observed shortcomings, and describe improvements made in response. We also discuss how best-estimate maps could be updated in near real time by merging FloodScan products and data from other remote sensing systems and hydrological models.

  14. Centennial ties: Harvey Cushing (1869-1939) and William Osler (1849-1919) on Andreas Vesalius (1514-1564). (United States)

    Toodayan, Nadeem


    Andreas Vesalius is often regarded as the founding father of modern anatomical study. The quincentennial anniversary of his birth - 31 December 2014 - has been very widely commemorated, and it is the purpose of this article to contrast these celebrations with what happened during the Vesalius quatercentenary year of 1914. More specifically, we look at how Vesalius was perceived a century ago by examining his influence on two of western medicine's most iconic gentlemen - Harvey Williams Cushing (1869-1939) and his larger than life mentor, Sir William Osler (1849-1919).

  15. Attributable Human-Induced Changes in the Likelihood and Magnitude of the Observed Extreme Precipitation during Hurricane Harvey (United States)

    Risser, Mark D.; Wehner, Michael F.


    Record rainfall amounts were recorded during Hurricane Harvey in the Houston, Texas, area, leading to widespread flooding. We analyze observed precipitation from the Global Historical Climatology Network with a covariate-based extreme value statistical analysis, accounting for both the external influence of global warming and the internal influence of El Niño-Southern Oscillation. We find that human-induced climate change likely increased the chances of the observed precipitation accumulations during Hurricane Harvey in the most affected areas of Houston by a factor of at least 3.5. Further, precipitation accumulations in these areas were likely increased by at least 18.8% (best estimate of 37.7%), which is larger than the 6-7% associated with an attributable warming of 1°C in the Gulf of Mexico and Clausius-Clapeyron scaling. In a Granger causality sense, these statements provide lower bounds on the impact of climate change and motivate further attribution studies using dynamical climate models.

  16. Hydrology and hydraulics of Cypress Creek watershed, Texas during Hurricane Harvey and Impact of Potential Mitigation Measures. (United States)

    El Hassan, A.; Fares, A.; Risch, E.


    Rain resulting from Hurricane Harvey stated to spread into Harris County late in August 25 and continued until August 31 2017. This high intensity rainfall caused catastrophic flooding across the Greater Houston Area and south Texas. The objectives of this study are to use the USACE Gridded Surface Subsurface Hydrologic Analysis model (GSSHA) to: i) simulate the hydrology and hydraulics of Cypress Creek watershed and quantify the impact of hurricane Harvey on it; and ii) test potential mitigation measures, e.g., construction of a third surface reservoir on the flooding and hydrology of this watershed. Cypress Creek watershed area is 733 km2. Simulations were conducted using precipitation from two sources a) the Multisensory Precipitation Estimator radar products (MPE) and Multi-Radar Multi-Sensor (MRMS) system. Streamflow was downloaded from the USGS gauge at the outlet of the watershed. The models performance using both precipitation data was very reasonable. The construction of an 8 m high embankment at the south central part of the watershed resulted in over 22% reduction of the peak flow of the stream and also reduction of the depth of inundation across the east part of the watershed. These and other mitigation scenarios will be further discussed in details during the presentation.

  17. Harvey Cushing: first guest at "The Divine Banquet of the Brayne". (United States)

    Modlin, I M; Shin, J H


    Harvey Cushing will remain forever ensconced in surgical memory as the visionary who established contemporary neurosurgery. Raised in Cleveland in a middle-class family with a medical background, he gave little indication early of his later prowess. A college education at Yale University yielded a modest performance, although he showed somewhat better promise as a medical student at Harvard University. During his surgical training at the Johns Hopkins Medical School, he emerged as a bright, industrious young man with a glint of steel to his intellect. From Halsted he learned the academic basis of surgery and the meticulousness necessary for technical success. Osler became his friend and provided him with a foundation in the history of medicine and the recognition of its importance in shaping the future. The decision to spend a year in Europe visiting clinics and renowned surgeons may have laid the foundations for the subsequent configuration of his career. In Britain he saw firsthand the glorious museums and libraries of the Hunters and the legacy that their schools of surgery had endowed to the nation. In Paris and London he mixed with the surgical aristocracy of the times and learned the power of societies and the traditions of their patrons. In Berne he was exposed to the surgical purity and physiologic expertise of Kocher, supported by the estimable scientific practice of Kroneker. As an "arbeid," Kocher posed him the problem of establishing the mechanism of the regulation of cerebral perfusion. This question, which he so rapidly and successfully unraveled, probably played a large part in igniting his enthusiasm toward the study of the brain as a future career. In his travels he encountered diverse intellects and experienced a wide panoply of European medical thought. He conversed widely at both a social and professional level and integrated all information into meticulously kept diaries that served as not only a record but also a template from which later

  18. Major Harvey Cushing's difficulties with the British and American armies during World War I. (United States)

    Carey, Michael E


    This historical review explores Harvey Cushing's difficulties with both the British and American armies during his World War I service to definitively examine the rumor of his possible court martial. It also provides a further understanding of Cushing the man. While in France during World War I, Cushing was initially assigned to British hospital units. This service began in May 1917 and ended abruptly in May 1918 when the British cashiered him for repeated censorship violations. Returning to American command, he feared court martial. The army file on this matter (retrieved from the United States National Archives) indicates that US Army authorities recommended that Cushing be reprimanded and returned to the US for his violations. The army carried out neither recommendation, and no evidence exists that a court martial was considered. Cushing's army career and possible future academic life were protected by the actions of his surgical peers and Merritte Ireland, Chief Surgeon of the US Army in France. After this censorship episode, Cushing was made a neurosurgical consultant but was also sternly warned that further rule violations would not be tolerated by the US Army. Thereafter, despite the onset of a severe peripheral neuropathy, probably Guillian Barré's syndrome, Cushing was indefatigable in ministering to neurosurgical needs in the US sector in France. Cushing's repeated defying of censorship regulations reveals poor judgment plus an initial inability to be a "team player." The explanations he offered for his censorship violations showed an ability to bend the truth. Cushing's war journal is unclear as to exactly what transpired between him and the British and US armies. It also shows no recognition of the help he received from others who were instrumental in preventing his ignominious removal from service in France. Had that happened, his academic future and ability to train future neurosurgical leaders may have been seriously threatened. Cushing's foibles

  19. Whole-Genome Sequencing of a Human Clinical Isolate of emm28 Streptococcus pyogenes Causing Necrotizing Fasciitis Acquired Contemporaneously with Hurricane Harvey


    Long, S. Wesley; Kachroo, Priyanka; Musser, James M.; Olsen, Randall J.


    ABSTRACT We discovered an emm28 Streptococcus pyogenes isolate causing necrotizing fasciitis in a patient exposed to the floodwaters of Hurricane Harvey in the Houston, TX, metropolitan area in August 2017. The Oxford Nanopore MinION instrument provided sufficient genome sequence data within 1 h of beginning sequencing to close the genome.

  20. 75 FR 22864 - In the Matter of CAN USA, Inc., Harvey, Louisiana; General License Pursuant to 10 CFR 150.20... (United States)


    ... CAN USA, Inc., Harvey, Louisiana; General License Pursuant to 10 CFR 150.20; Confirmatory Order (Effective Immediately) I CAN USA, Inc. (CAN USA or Licensee) is the holder of State of Louisiana Materials..., pursuant to 10 CFR 150.20(a)(1), CAN USA is granted a general license by the U.S. Nuclear Regulatory...

  1. Ecohydrological Responses to Hurricane Harvey across South-Central Texas a Multidisciplinary Approach of the Texas Water Observatory (United States)

    Jaimes, A.; Gaur, N.; Aparecido, L. M. T.; Everett, M. E.; Knappett, P.; Lawing, M.; Majumder, S.; Miller, G. R.; Moore, G. W.; Morgan, C.; Mitra, B.; Noormets, A.; Mohanty, B.


    The unprecedented destructive hurricane Harvey struck eastern Texas from August 25th to 29th, 2017. As the hurricane moved through the region, it dropped the equivalent of one year of precipitation within a five-day period, with peak accumulations near 165 cm. Rainfall intensity and distribution varied across the region but Harris County and portions of the lower Brazos River Basin experienced devastating flooding due to high run-off and water accumulation in the built-up area. In this study, we use a multidisciplinary approach to quantify the dynamics of carbon and water flux at different spatiotemporal resolution across land types both in and outside of the path of hurricane Harvey using a combination of remote sensing and fixed monitoring platforms of the Texas Water Observatory (TWO). We used LANDSAT imagery to compute Soil Adjusted Vegetation Index, Enhanced Vegetation Index, and Normalized Difference Moisture Index. MODIS ET, GPP, and sap flow data were used in combination with eddy covariance and meteorological data from seven sites of the TWO representative of biomes ranging from low tidal salt marsh of the Gulf Coastal Plain, Shrubland, Improved Pasture, Mixed and Native Prairies, and Crop sites. We hypothesize alteration in ecohydrological characteristics across land types, which were in the path of hurricane due to changes in vegetation structure. Specifically we used trend analysis to detect structural changes in temporal dynamics of sap flow, ET, and carbon to pulse response. In addition, we monitored trace metal concentration of soil and water pores before and immediately after the hurricane in order to predict the potential of any of the toxic metal (loid)s being mobilized in the natural water resources as a function of the changes in the redox gradient. Preliminary results indicated that tree water use was reduced on average 30% below normal days. Porewater concentration of some of the metal (loid) concentration increased (Fe, Mn, Co, As, Sb, Pb

  2. Hurricane Harvey rapid response: observations of infragravity wave dynamics and morphological change during inundation of a barrier island cut (United States)

    Anarde, K.; Figlus, J.; Dellapenna, T. M.; Bedient, P. B.


    Prior to landfall of Hurricane Harvey on August 25, 2017, instrumentation was deployed on the seaward and landward sides of a barrier island on the central Texas Gulf Coast to collect in-situ hydrodynamic measurements during storm impact. High-resolution devices capable of withstanding extreme conditions included inexpensive pressure transducers and tilt current meters mounted within and atop (respectively) shallow monitoring wells. In order to link measurements of storm hydrodynamics with the morphological evolution of the barrier, pre- and post-storm digital elevation models were generated using a combination of unmanned aerial imagery, LiDAR, and real-time kinematic GPS. Push-cores were collected and analyzed for grain size and sedimentary structure to relate hydrodynamic observations with the local character of storm-generated deposits. Observations show that at Hog Island, located approximately 160 miles northeast of Harvey's landfall location, storm surge inundated an inactive storm channel. Infragravity waves (0.003 - 0.05 Hz) dominated the water motion onshore of the berm crest over a 24-hour period proximate to storm landfall. Over this time, approximately 50 cm of sediment accreted vertically atop the instrument located in the backshore. Storm deposits at this location contained sub-parallel alternating laminae of quartz and heavy mineral-enriched sand. While onshore progression of infragravity waves into the back-barrier was observed over several hours prior to storm landfall, storm deposits in the back-barrier lack the characteristic laminae preserved in the backshore. These field measurements will ultimately be used to constrain and validate numerical modeling schemes that explore morphodynamic conditions of barriers in response to extreme storms (e.g., XBeach, CSHORE). This study provides a unique data set linking extreme storm hydrodynamics with geomorphic changes during a relatively low surge, but highly dissipative wave event.

  3. An In Depth Look at Lightning Trends in Hurricane Harvey using Satellite and Ground-Based Measurements (United States)

    Ringhausen, J.


    This research combines satellite measurements of lightning in Hurricane Harvey with ground-based lightning measurements to get a better sense of the total lightning occurring in the hurricane, both intra-cloud (IC) and cloud-to-ground (CG), and how it relates to the intensification and weakening of the tropical system. Past studies have looked at lightning trends in hurricanes using the space based Lightning Imaging Sensor (LIS) or ground-based lightning detection networks. However, both of these methods have drawbacks. For instance, LIS was in low earth orbit, which limited lightning observations to 90 seconds for a particular point on the ground; hence, continuous lightning coverage of a hurricane was not possible. Ground-based networks can have a decreased detection efficiency, particularly for ICs, over oceans where hurricanes generally intensify. With the launch of the Geostationary Lightning Mapper (GLM) on the GOES-16 satellite, researchers can study total lightning continuously over the lifetime of a tropical cyclone. This study utilizes GLM to investigate total lightning activity in Hurricane Harvey temporally; this is augmented with spatial analysis relative to hurricane structure, similar to previous studies. Further, GLM and ground-based network data are combined using Bayesian techniques in a new manner to leverage the strengths of each detection method. This methodology 1) provides a more complete estimate of lightning activity and 2) enables the derivation of the IC:CG ratio (Z-ratio) throughout the time period of the study. In particular, details of the evolution of the Z-ratio in time and space are presented. In addition, lightning stroke spatiotemporal trends are compared to lightning flash trends. This research represents a new application of lightning data that can be used in future study of tropical cyclone intensification and weakening.

  4. The Great Southwest of the Fred Harvey Company and the Santa Fe Railway, edited by Marta Weigle and Barbara A. Babcock. The Heard Museum, Pheonix (printed by The University of Arizona Press, Tucson, for The Heard Museum, 1996

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    Douglas R. Givens


    Full Text Available One of the more colorful eras in American Southwestern archaelogy is reflected in The Great Southwest of the Fred Harvey Company and the Santa Fe Railway. Marta Weigle and Barbara A. Babcock, editors of the volume, have done a superb job weaving in early Southwestern archaeological activities with the role of the Fred Harvey Company and the Santa Fe Railway in bring the American Southwest to those "east of the Mississippi River". Many early Southwestern archaeologists made their way throughout the Southwest on the Santa Fe Railway while the "outposts of civilization" that the Fred Harvey Company provided in many railroad stations served as a " bit of home" to the traveler. This book describes the collaboration of both Fred Harvey and the Santa Fe Railroad tourism in the American Southwest and provides an excellent look into the Native American artists and their comumnities which were transformed on a massive scale by the Fred Harvey Company as it bought, sold, and popularized Native American art. Also part of the volume is an excellent discussion of the network of major museums that hold art collections which were purchased through the Harvey Company's Indian Department.

  5. Dynamic inundation mapping of Hurricane Harvey flooding in the Houston metro area using hyper-resolution modeling and quantitative image reanalysis (United States)

    Noh, S. J.; Lee, J. H.; Lee, S.; Zhang, Y.; Seo, D. J.


    Hurricane Harvey was one of the most extreme weather events in Texas history and left significant damages in the Houston and adjoining coastal areas. To understand better the relative impact to urban flooding of extreme amount and spatial extent of rainfall, unique geography, land use and storm surge, high-resolution water modeling is necessary such that natural and man-made components are fully resolved. In this presentation, we reconstruct spatiotemporal evolution of inundation during Hurricane Harvey using hyper-resolution modeling and quantitative image reanalysis. The two-dimensional urban flood model used is based on dynamic wave approximation and 10 m-resolution terrain data, and is forced by the radar-based multisensor quantitative precipitation estimates. The model domain includes Buffalo, Brays, Greens and White Oak Bayous in Houston. The model is simulated using hybrid parallel computing. To evaluate dynamic inundation mapping, we combine various qualitative crowdsourced images and video footages with LiDAR-based terrain data.

  6. [Scientific revolution and embryology: rejection or transformation of antiquity? A comparison between the procreation teachings of Cesare Cremonini, William Harvey und René Descartes]. (United States)

    Lo Presti, Roberto


    In this paper I address the issue of the theoretical and epistemological status of embryology at the rise of the so-called "Scientific Revolution" (also in the first half of the seventeenth-century) and raise the question, in what sense and to what extent the historiographical concept of "Scientific Revolution" is applicable to the domain of embryology. To achieve this aim I compare the theories of three protagonists of the medical, scientific and philosophical debate of that age, namely Cesare Cremonini, William Harvey and René Descartes, who had very different views on the world structure and human nature and a very different concept of science, but who shared, as concerns embryological issues, an epigenetic conception of the development of the embryo. Their theories are discussed and compared in light of following questions: 1) What do Cremonini's, Harvey's and Descartes's embryological theories exactly aim to?; 2) In developing their theories, do these thinkers deal explicitly or implicitly with the Aristotelian and the Galenic embryological paradigm?; 3)Do they refer polemically to the Aristotelian and the Galenic tradition and what theoretical and/or rhetorical function have these polemical references?; 4) Do the embryological theories of Cremonini, Harvey and Descartes reflect the century-long dispute between "(Aristotelian) philosophers" and "(Galenic) doctors"?; 5) How is represented embryology as a 'scientific' and/or 'theoretical' domain? And what relationship between concepts of 'truth', 'research', 'tradition' and 'scientific progress' is implied or proposed in the embryological works of these three thinkers? What kind of use do Cremonini, Harvey and Descartes make of the argumenta ex ratione and of those ex experientia?


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    Rogério Faé


    Full Text Available O objetivo deste artigo é fundamentar a escolha pela perspectiva teórica do materialismo histórico-geográfico, desenvolvida pelo geógrafo David Harvey para compreender uma região. Para tanto, apresentamos e discutimos também os referenciais predominantes nas análises sobre regiões, com o intuito de demonstrar os limites desses referenciais e as possibilidades abertas pela perspectiva de Harvey. Assim, apresentamos alguns dos principais conceitos que têm orientado as ações de governos dos mais diversos matizes; a abordagem de David Harvey bem como seus pressupostos teóricos e históricos; e uma análise comparativa em que demonstramos as limitações dos referenciais predominantes e as possibilidades da perspectiva do último autor. Ao final, conclui-se que o materialismo histórico-geográfico permite compreender que as dinâmicas sociais e econômicas de uma região se caracterizam em processos conflituosos e contraditórios e resultam em uma configuração regional específica e transitória.

  8. Inundation and draining of the Trinity River floodplain associated with extreme precipitation from Hurricane Harvey, east Texas, USA (United States)

    Hassenruck-Gudipati, H. J.; Goudge, T. A.; Mohrig, D. C.


    Rivers swelled up beyond their historic high-water marks due to precipitation from Hurricane Harvey. We used Harvey-induced flooding to investigate the flow connectivity between the coastal Trinity River and its floodplain by measuring water depth and velocity, as well as sediment-transporting conditions on the natural levee that separates the two. River discharge within the study area peaked at a historic high of 3600 cubic meters per second on September 1, 2017. The levees on two river bends were investigated on September 3 and 4 in order to characterize the hydraulic connectivity between the channel and its floodplain during the early falling limb of this flood. On September 3, a river bend located approximately 28km upstream of the river mouth was visited. Water was overtopping the levee crest at this location, 30m away from the levee crest. This overland flow only experienced about a threefold reduction in average velocity to 0.16 m/s (in 2.2 m of water) 600m away from the levee crest. On September 4, a river bend approximately 59km upstream of the river mouth was investigated. Even though the river stage was at the National Weather Service major flood stage, the levee crest separating the river and floodplain was emergent. Regardless of this local disconnect between the river and its floodplain, substantial and variable drainage velocities were measured depending on drainage patterns controlled by local topography. Velocities measured in shallow water immediately adjacent to the emergent levee were low (< 0.05 m/s in 0.2 m of water). The highest drainage velocity ( 0.18 m/s in 1.7 m of water) associated with the upstream river-bend was measured at 750m from the channel and was similar in magnitude to those recorded for the distal inundating overland flow a day before on the downstream river-bend. Results from this work highlight the maintenance of high flow velocities across the distal floodplain even during its drainage phase. The transport of sediment

  9. Nowcasting, forecasting and hindcasting Harvey and Irma inundation in near-real time using a continental 2D hydrodynamic model (United States)

    Sampson, C. C.; Wing, O.; Quinn, N.; Smith, A.; Neal, J. C.; Schumann, G.; Bates, P.


    During an ongoing natural disaster data are required on: (1) the current situation (nowcast); (2) its likely immediate evolution (forecast); and (3) a consistent view post-event of what actually happened (hindcast or reanalysis). We describe methods used to achieve all three tasks for flood inundation during the Harvey and Irma events using a continental scale 2D hydrodynamic model (Wing et al., 2017). The model solves the local inertial form of the Shallow Water equations over a regular grid of 1 arcsecond ( 30m). Terrain data are taken from the USGS National Elevation Dataset with known flood defences represented using the U.S. Army Corps of Engineers National Levee Dataset. Channels are treated as sub-grid scale features using the HydroSHEDS global hydrography data set. The model is driven using river flows, rainfall and coastal water levels. It simulates river flooding in basins > 50 km2, and fluvial and coastal flooding everywhere. Previous wide area validation tests show this model to be capable of matching FEMA maps and USGS local models built with bespoke data with hit rates of 86% and 92% respectively (Wing et al., 2017). Boundary conditions were taken from NOAA QPS data to produce nowcast and forecast simulations in near real time, before updating with NOAA observations to produce the hindcast. During the event simulation results were supplied to major insurers and multi-nationals who used them to estimate their likely capital exposure and to mitigate flood damage to their infrastructure whilst the event was underway. Simulations were validated against modelled flood footprints computed by FEMA and USACE, and composite satellite imagery produced by the Dartmouth Flood Observatory. For the Harvey event, hit rates ranged from 60-84% against these data sources, but a lack of metadata meant it was difficult to perform like-for-like comparisons. The satellite data also appeared to miss known flooding in urban areas that was picked up in the models. Despite

  10. Urban common space, heterotopia and the right to the city: Reflections on the ideas of Henri Lefebvre and David Harvey

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    Orlando Alves dos Santos Junior


    Full Text Available A city’s common spaces are appropriated by capital that aims to guarantee the conditions necessary for the production-reproduction of capitalist relations. In this context, the challenge is to imagine and construct a very different type of city capable of breaking away from the dynamic of capital, founded on new forms of appropriation of the city, which implies articulating both theory and praxis. For this to occur, however, it is necessary to create new knowledge about the city and a strong anti-capitalist social movement focused on the transformation of daily urban life and involving new forms of appropriation of urban common spaces. It is in this context, and from a dialectic perspective, that this article articulates the ideas of Henri Lefebvre and David Harvey, seeking to contribute to an understanding of the production processes of space in contemporary capitalism, the discussion of the future of cities and perspectives on transition. To do so, the article addresses four central ideas: (i the dialectic conception of space to problematize the production and appropriation of urban common spaces; (ii the recognition of urban common spaces as spaces traversed by contradictions, disputes and material and symbolic conflicts among different agents; (iii the right to the city as a need and as a utopian project; and (iv the challenge of articulating heterotopic practices from the perspective of creative rebellion for the right to the city and the transition to a new urban future.

  11. Multistep process of neoplastic transformation of normal human fibroblasts by 60Co gamma rays and Harvey sarcoma viruses

    Energy Technology Data Exchange (ETDEWEB)

    Namba, M.; Nishitani, K.; Fukushima, F.; Kimoto, T.; Nose, K.


    As reported previously (Namba et al., 1985), normal human fibroblasts were transformed by 60Co gamma-ray irradiation into immortal cells with abnormal karyotypes. These transformed cells (KMST-6), however, showed a low cloning efficiency in soft agar and no transplantability. However, upon treatment with Harvey murine sarcoma virus (Ha-MSV), the cells acquired elevated clonability in soft agar and transplantability in nude mice. Ha-MSV alone, however, did not convert normal human fibroblasts into either immortal or tumorigenic cells. The Ha-MSV-transformed KMST-6 cells showed an enhanced expression of the ras oncogene, but normal and 60Co gamma-ray-transformed cells did not. Our current data suggest that gamma rays worked against normal human cells as an initiator, giving rise to chromosome aberrations and immortality, and that Ha-MSV, probably through its ras oncogene, played a role in the progression of the malignant cell population to a more malignant one showing enhanced colony formation in soft agar and tumorigenicity in nude mice.

  12. An Outflow Event on the Left Side of Harvey: Erosion of Barrier Sand and Seaward Transport Through Aransas Pass (United States)

    Goff, J.; Swartz, J. M.; Gulick, S. P. S.


    Barrier islands provide critical support and protection for coastal communities and ecosystems, but are potentially vulnerable to net losses of sand during major storms. Evidence from satellite imagery, ground observations and tide stations indicates that Hurricane Harvey in 2017 caused a large outflow event of waters moving from the bays out towards the sea in the Port Aransas, Texas region. Rather than just an ebb of a storm surge, this event may have been driven by seaward-directed winds on the left side of storm. Less than a month after landfall, we conducted a swath mapping and sampling survey in Lydia Ann Channel and Aransas Pass, where we had earlier mapped in 2009 and 2012 as part of the UT marine geology and geophysical field course. These waterways are important conduits linking Corpus Christi and Aransas bays to the Gulf of Mexico. This multi-year record allows us to gauge the impact of the outflow event on these waterways in the context of "normal" coastal processes. Both satellite imagery and sonar mapping reveal that the outflow event caused significant erosion, both on land and beneath the water, along the edges of Lydia Ann Channel and Corpus Christi ship channel. It also caused seaward-directed flow and erosion through breaches in the foredunes along southern San Jose Island, from waters that overtopped Lydia Ann Channel. Much of the sand that was transported seaward settled in Lydia Ann Channel and Aransas Pass (up to 6.5 m accumulation), possibly during the waning stages of the event. However, a likely large (but unknown) quantity of barrier and estuarine sand could have been transported well out to sea, beyond the jetties, at the peak of the event. If so, it would have resulted in a net loss of sand from the barrier island system.

  13. Ethyl Alcohol Extract of Hizikia fusiforme Induces Caspase ...

    African Journals Online (AJOL)


    In this study, the role of the ethyl alcohol extract of H. fusiforme (EAHF) in the induction of apoptosis in ... closely related to the induction of apoptosis via the downregulation of IAP family members such as IAP-. 1, IAP-2 ... induces apoptosis in a variety of cancer cells through ... Total cell extracts were prepared using PRO-.

  14. Performance of the FV3-powered Next Generation Global Prediction System for Harvey and Irma, and a vision for a "beyond weather timescale" prediction system for long-range hurricane track and intensity predictions (United States)

    Lin, S. J.; Bender, M.; Harris, L.; Hazelton, A.


    The performance of a GFDL developed FV3-based Next Generation Global Prediction System (NGGPS) for Harvey and Irma will be reported. We will report on aspects of track and intensity errors (vs operational models), heavy precipitation (Harvey), rapid intensification, and simulated structure (in comparison with ground based radar), and point to a need of a future long-range (from day-5 up to 30 days) physically based ensemble hurricane prediction system for providing useful information to the forecasters, beyond the usual weather timescale.

  15. La justicia social y la Utopía dialética: Discutiendo con Harvey sobre espacio público

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    Márcio Valença


    Full Text Available Este ensayo explora la idea de justicia social y, teniendo en cuenta el papel del espacio público, el pensamiento utópico de David Harvey sobre el futuro de las ciudades. Este conocido geógrafo Inglés, que vive en EE.UU., dedica su vida a construir una teoría del desarrollo geográfico desigual que objetiva elaborar propuestas alternativas que empiecen un proceso continuo de cambios progresistas en la búsqueda de una sociedad más justa. El artículo analiza varios de sus escritos y construcciones teóricas, incluyendo a las que se refieren a la “justicia distributiva territorial” y el “utopianismo dialéctico”, como también las versiones modificadas del “derecho a la ciudad”, de Henri Lefebvre, y de “cosmopolitismo subalterno”, de Boaventura de Souza Santos. Harvey piensa que es fundamental que toda la infraestructura física y el aparato institucional producidos por la sociedad burguesa en los últimos 500 años sean sustituidos por otros sistemas que den origen a un espacio y lugar relacional alternativo, construido a partir de una “reflexión filosófica”, una “evaluación de requerimientos prácticos y de necesidades humanas básicas” y del “fermento de los movimientos sociales”.

  16. Universal Alienation, Formal and Real Subsumption of Society Under Capital, Ongoing Primitive Accumulation by Dispossession: Reflections on the Marx@200-Contributions by David Harvey and Michael Hardt/Toni Negri

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    Christian Fuchs


    Full Text Available This contribution presents reflections on the contributions of and the debate between David Harvey and Michael Hardt/Toni Negri that we feature as the opening part of the tripleC-special issue “Marx@200: Debating Capitalism & Perspectives for the Future of Radical Theory”. My reflection contextualises the debate by a discussing the origin and genesis of Marx’s concepts of alienation, formal/real subsumption, and primitive accumulation and b situating the arguments in earlier works by Harvey, Hardt and Negri. This paper points out differences as well as the strong commonalities between the works of Michael Hardt/Toni Negri and David Harvey. It discusses how the categories of universal alienation, formal/real subsumption of society under capital, original/ongoing primitive accumulation of capital are related. Harvey and Hardt/Negri show that Marx’s theory and politics are alive 200 years after his birth and will haunt capitalism as long as it exists. The paper concludes by arguing that Harvey’s concept of anti-value and the autonomous notion of self-valorisation point towards democratic, commons-based alternatives to capitalism.

  17. The impact of local land subsidence and global sea level rise on flood severity in Houston-Galveston caused by Hurricane Harvey (United States)

    Miller, M. M.; Shirzaei, M.


    Category-4 Hurricane Harvey had devastating socioeconomic impacts to Houston, with flooding far past the 100-year flood zones published by FEMA. In recent decades, frequency and intensity of coastal flooding are escalating, correlated with sea level rise (SLR). Moreover, Local land subsidence (LLS) due to groundwater and hydrocarbon extraction and natural compaction changes surface elevation and slope, potentially altering drainage patterns. GPS data show a mm broad co-cyclonic subsidence due to elastic loading from the water mass measured by GPS, which is inverted to solve for the total fluid volume of 2.73x1010 m3. We additionally investigate the joint impact of an SLR and pre-cyclonic LLS on the flooding of Houston-Galveston during Hurricane Harvey. We examine vertical land motion within North American Vertical Datum 2012 for the period 2007 until the cyclone by investigating SAR imaged acquired by ALOS and Sentinel-1A/B radar satellites combined with GPS data. We find patchy, LLS bowls resulting in sinks where floodwater can collect. We map the flooding extent by comparing amplitudes of Sentinal1-A/B pixels' backscattered radar signal from pre- and post-Harvey acquisitions and estimate 782 km2 are submerged within the area of 3478 km2 of pixels covered by Sentinel frame. Comparing with the LLS map, 89% of the flooded pixels exhibit -3 mm/yr or greater vertical motion. Flooding attributed to the storm surge is determined with high-resolution LiDAR digital elevation models (DEM) and a 0.75 m storm tide inundation model, which engulfs only 195 km2 and nearby the shorelines. We estimate future inundation hazard by combining LiDAR DEMs with our InSAR derived subsidence map, projecting LLS rates forward 100 years, and modeling projected SLR from 0.4 to 1.2 meters. Were subsidence to continue unabated, the total flooded area is 281 km2 with a 0.4 m and 394 km2 with a 1.2 m SLR. Next, we add a modest storm tide (0.752 m), which increases the flooded area to 389 - 480

  18. Real-Time Tracking of the Extreme Rainfall of Hurricanes Harvey, Irma, and Maria using UCI CHRS's iRain System (United States)

    Shearer, E. J.; Nguyen, P.; Ombadi, M.; Palacios, T.; Huynh, P.; Furman, D.; Tran, H.; Braithwaite, D.; Hsu, K. L.; Sorooshian, S.; Logan, W. S.


    During the 2017 hurricane season, three major hurricanes-Harvey, Irma, and Maria-devastated the Atlantic coast of the US and the Caribbean Islands. Harvey set the record for the rainiest storm in continental US history, Irma was the longest-lived powerful hurricane ever observed, and Maria was the costliest storm in Puerto Rican history. The recorded maximum precipitation totals for these storms were 65, 16, and 20 inches respectively. These events provided the Center for Hydrometeorology and Remote Sensing (CHRS) an opportunity to test its global real-time satellite precipitation observation system, iRain, for extreme storm events. The iRain system has been under development through a collaboration between CHRS at the University of California, Irvine (UCI) and UNESCO's International Hydrological Program (IHP). iRain provides near real-time high resolution (0.04°, approx. 4km) global (60°N - 60°S) satellite precipitation data estimated by the PERSIANN-Cloud Classification System (PERSIANN-CCS) algorithm developed by the scientists at CHRS. The user-interactive and web-accessible iRain system allows users to visualize and download real-time global satellite precipitation estimates and track the development and path of the current 50 largest storms globally from data generated by the PERSIANN-CCS algorithm. iRain continuously proves to be an effective tool for measuring real-time precipitation amounts of extreme storms-especially in locations that do not have extensive rain gauge or radar coverage. Such areas include large portions of the world's oceans and over continents such as Africa and Asia. CHRS also created a mobile app version of the system named "iRain UCI", available for iOS and Android devices. During these storms, real-time rainfall data generated by PERSIANN-CCS was consistently comparable to radar and rain gauge data. This presentation evaluates iRain's efficiency as a tool for extreme precipitation monitoring and provides an evaluation of the

  19. Regional-scale impact of storm surges on groundwaters of Texas, Florida and Puerto Rico after 2017 hurricanes Harvey, Irma, Jose, Maria (United States)

    Sellier, W. H.; Dürr, H. H.


    Hurricanes and related storm surges have devastating effects on near-shore infrastructure and above-ground installations. They also heavily impact groundwater resources, with potentially millions of people dependant on these resources as a freshwater source. Destructions of casings and direct incursions of saline and/or polluted waters have been widely observed. It is uncertain how extensive the effects are on underground water systems, especially in limestone karst areas such as Florida and Puerto Rico. Here, we report regional-scale water level changes in groundwater systems of Texas, Florida and Puerto Rico for the 2017 Hurricanes Harvey, Irma, Jose and Maria. We collected regional scale data from the USGS Waterdata portal. Puerto Rico shows the strongest increase in groundwater levels in wells during Hurricane Maria, with less reaction for the preceding storms Irma and Jose. Increases in water levels range from 0.5 to 11m, with maximum storm surges in Puerto Rico around 3m. These wells are located throughout Puerto Rico, on the coast and inland. In Florida, most wells that show a response during Hurricane Irma are located in the Miami region. Wells located on the west coast show smaller responses with the exception of one well located directly on Hurricane Irma's track. These wells show an increase of 0.2 to 1.7m. In Texas, wells located in proximity to Hurricane Harvey's track show an increase in water level. The effect of groundwater level increases is not limited to the Texas coast, but inland as well. An increase between 0.03 and 2.9m is seen. Storm surges for both Florida and Texas have ranged from 1.8-3.7m maximum. We discuss the findings in the context of local and regional geology and hydrogeology (presence of connected aquifer systems, faulting, presence of carbonate/karst systems etc.).

  20. Hurricanes Harvey and Irma - High-Resolution Flood Mapping and Monitoring from Sentinel SAR with the Depolarization Reduction Algorithm for Global Observations of InundatioN (DRAGON) (United States)

    Nghiem, S. V.; Brakenridge, G. R.; Nguyen, D. T.


    Hurricane Harvey inflicted historical catastrophic flooding across extensive regions around Houston and southeast Texas after making landfall on 25 August 2017. The Federal Emergency Management Agency (FEMA) requested urgent supports for flood mapping and monitoring in an emergency response to the extreme flood situation. An innovative satellite remote sensing method, called the Depolarization Reduction Algorithm for Global Observations of inundatioN (DRAGON), has been developed and implemented for use with Sentinel synthetic aperture radar (SAR) satellite data at a resolution of 10 meters to identify, map, and monitor inundation including pre-existing water bodies and newly flooded areas. Results from this new method are hydrologically consistent and have been verified with known surface waters (e.g., coastal ocean, rivers, lakes, reservoirs, etc.), with clear-sky high-resolution WorldView images (where waves can be seen on surface water in inundated areas within a small spatial coverage), and with other flood maps from the consortium of Global Flood Partnership derived from multiple satellite datasets (including clear-sky Landsat and MODIS at lower resolutions). Figure 1 is a high-resolution (4K UHD) image of a composite inundation map for the region around Rosharon (in Brazoria County, south of Houston, Texas). This composite inundation map reveals extensive flooding on 29 August 2017 (four days after Hurricane Harvey made landfall), and the inundation was still persistent in most of the west and south of Rosharon one week later (5 September 2017) while flooding was reduced in the east of Rosharon. Hurricane Irma brought flooding to a number of areas in Florida. As of 10 September 2017, Sentinel SAR flood maps reveal inundation in the Florida Panhandle and over lowland surfaces on several islands in the Florida Keys. However, Sentinel SAR results indicate that flooding along the Florida coast was not extreme despite Irma was a Category-5 hurricane that might

  1. Três pontos de vista sobre o capitalismo atual: um estudo a partir de Harvey, Jameson, Zizek, Deleuze e Negri

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    Pedro Sobrino Laureano


    Full Text Available Procuramos apresentar e relacionar três visões distintas sobre o capitalismo. A primeira, compartilhada por Deleuze, Guattari, Negri e Hardt, aposta na radicalização da diferença contra os mecanismos modulatórios do mercado mundial. A segunda, presente nas teorias de Jameson e Harvey, critica o repudio pós-moderno às categorias universalistas, caracterizando o culto contemporâneo ao hibridismo e à pluralidade como reforço ideológico do novo capitalismo flexível surgido nos anos 70. Finalmente, no pensamento de Zizek, a crítica à ideologia da subjetividade múltipla é articulada à denegação capitalista da dimensão negativa, ou traumática, do sujeito. Buscamos sustentar por que as análises de Deleuze, Guattari, Negri e Hardt nos parecem mais pertinentes, ao procurarem positivar os elementos de constituição e resistência já presentes na atual conjuntura.

  2. Harvey Cushing's Meningiomas text and the historical origin of resectability criteria for the anterior one third of the superior sagittal sinus. (United States)

    Shrivastava, Raj K; Segal, Salomao; Camins, Martin B; Sen, Chandranath; Post, Kalmon D


    The search for the origin of the commonly held principle in current neurosurgery regarding the resectability of the anterior one third of the superior sagittal sinus unravels the many fascinating developments that occurred in neurosurgery during the early 20th century. All these occurrences can be traced back to, and are uniquely contextualized in, Harvey Cushing's seminal text, Meningiomas, Their Classification, Regional Behaviour, Life History, and Surgical End Results. Written with Louise Eisenhardt and published in 1938, Meningiomas is a monograph of incredible description and detail. The meticulous categorization of meningiomas, their presentation, clinical outcome, and surgical therapies are even further supplemented by Cushing's personal commentary, questions, and recollections. Cushing's genius was evident in his ability not only to make insightful clinical observations, but also to synthesize these ideas within the neurosurgical context of his era. As he says in Meningiomas, "Thus the pathological curiosity of one day becomes in its proper time a commonplace... most of which are one and the same disorder--had, for their interpretation, to await the advent of the Neurosurgeon."

  3. Measuring and building resilience after big storms: Lessons learned from Super-Storm Sandy for the Harvey, Irma, Jose, and Maria coasts (United States)

    Murdoch, P. S.; Penn, K. M.; Taylor, S. M.; Subramanian, B.; Bennett, R.


    As we recover from recent large storms, we need information to support increased environmental and socio-economic resilience of the Nation's coasts. Defining baseline conditions, tracking effects of mitigation actions, and measuring the uncertainty of resilience to future disturbance are essential so that the best management practices can be determined. The US Dept. of the Interior invested over $787 million dollars in 2013 to understand and mitigate coastal storm vulnerabilities and enhance resilience of the Northeast coast following Super-Storm Sandy. Several lessons-learned from that investment have direct application to mitigation and restoration needs following Hurricanes Harvey, Irma, Jose and Maria. New models of inundation, overwash, and erosion, developed during the Sandy projects have already been applied to coastlines before and after these recent storms. Results from wetland, beach, back-bay, estuary, and built-environment projects improved models of inundation and erosion from surge and waves. Tests of nature-based infrastructure for mitigating coastal disturbance yielded new concepts for best-practices. Ecological and socio-economic measurements established for detecting disturbance and tracking recovery provide baseline data critical to early detection of vulnerabilities. The Sandy lessons and preliminary applications on the recent storms could help define best-resilience practices before more costly mitigation or restoration efforts are required.

  4. Protective effect of 3,4-dihydroxybenzoic acid isolated from Cladophora wrightiana Harvey against ultraviolet B radiation-induced cell damage in human HaCaT keratinocytes. (United States)

    Cha, Ji Won; Piao, Mei Jing; Kim, Ki Cheon; Zheng, Jian; Yao, Cheng Wen; Hyun, Chang Lim; Kang, Hee Kyoung; Yoo, Eun Sook; Koh, Young Sang; Lee, Nam Ho; Ko, Mi Hee; Hyun, Jin Won


    The aim of the present study was to elucidate the protective properties of 3,4-dihydroxybenzoic acid (DBA) isolated from Cladophora wrightiana Harvey (a green alga) against ultraviolet B (UVB)-induced damage to human HaCaT keratinocytes. DBA exhibited scavenging actions against the 1,1-diphenyl-2-picrylhydrazyl radical, the superoxide anion, and the hydroxyl radical. Furthermore, DBA decreased the levels of intracellular reactive oxygen species generated by hydrogen peroxide or UVB treatment of the cells. DBA also decreased the UVB-augmented levels of phospho-histone H2A.X and the extent of comet tail formation, which are both indications of DNA damage. In addition, the compound safeguarded keratinocytes from UVB-induced injury by reversing the production of apoptotic bodies, overturning the disruption of mitochondrial membrane potential, increasing the expression of the anti-apoptotic protein, B-cell lymphoma 2, and decreasing the expression of the pro-apoptotic proteins, Bcl-2-associated X and cleaved caspase-3. Taken together, these results demonstrate that DBA isolated from a green alga protects human keratinocytes against UVB-induced oxidative stress and apoptosis.

  5. The autopsy was conducted "Under most inauspicious circumstances:" John Turner, Harvey Cushing's case XXXII, and his unwitting contributions to the early understanding of acromegaly. (United States)

    Pendleton, Courtney; Wand, Gary; Quinones-Hinojosa, Alfredo


    Harvey Cushing's monograph The Pituitary Body and Its Disorders describes Case XXXII, a 36-year-old man who presented with gigantism in 1910. The detailed post-mortem exam findings are prefaced with a cryptic statement, describing "inauspicious circumstances" surrounding the autopsy. Although contemporary biographies of Cushing have offered insight into these circumstances, the original surgical file for Case XXXII has not been previously reviewed. The original Johns Hopkins Hospital surgical records were reviewed, and the case of John Turner, who Cushing identified by name in his monograph The Pituitary Body and Its Disorders, was selected for further review. A review of the original surgical file revealed a typewritten note by Dr. Crowe, one of the surgeons who performed the post-mortem exam, with a handwritten addendum by Dr. Cushing. This document provides detail regarding the "inauspicious circumstances" surrounding the autopsy. Namely, the autopsy was conducted without permission of the family, during the funeral service, following a payment to the undertaker. The new information regarding the autopsy of John Turner offers insight into the previously incompletely described circumstances surrounding the autopsy. Additionally, the case illuminates the obligations and ethical quandaries that physician-scientists face.

  6. Study on the changes in phyicochemical properties of seafood cooking drips by gamma ray irradiation

    International Nuclear Information System (INIS)

    Choi, Jong Il; Kim, Yeon Joo; Kim, Jae Hun; Yoon, Yo Han; Song, Beom Seok; Lee, Ju Woon; Chun, Byung Soo; Ahn, Dong Hyun; Lee, Ju Yeoun


    Cooking drips which were obtained as by-product after seafood processing in the food industries, still contain lots of proteins, carbohydrates, and other functional materials. But, the seafood cooking drips are easily contaminated because of its rich nutrients, and their color are very dark. This study was conducted to investigate the effect of gamma irradiation on the quality of seafood cooking drips including Hizikia fusiformis, Enteroctopus dofleini, and Thunnus thynnus. The Hunter's color values (L, Brightness) of H. fusiformis, and T.thynnus, were increased with increasing irradiation doses, showing becoming bright. The crude protein content and crude lipid content were increased by gamma irradiation. These results indicated that gamma irradiation increased extraction efficiency of available compounds in cooking drips

  7. Norman M. Dott, master of hypothalamic craniopharyngioma surgery: the decisive mentoring of Harvey Cushing and Percival Bailey at Peter Bent Brigham Hospital. (United States)

    Prieto, Ruth; Pascual, José M


    Norman McOmish Dott (1897-1973) developed surgical neurology in Edinburgh, Scotland, and was a scholar of worldwide renown. One of Dott's most notable contributions to neurosurgery was his understanding of hypothalamic physiology, mostly acquired through the comprehensive study of patients with lesions involving this region of the diencephalon, particularly craniopharyngiomas (CPs). Recognition of symptoms caused by hypothalamic disturbances allowed him to predict the accurate anatomical relationships between CPs and the hypothalamus, despite the rudimentary radiological methods available during the 1930s. His sophisticated knowledge permitted Dott to perform radical removals of CPs originating within the third ventricle floor with acceptable success. Between 1934 and 1937, he operated on 4 CP cases originating in the hypothalamus, achieving a satisfactory postoperative outcome in 3 of the 4 patients. Aware of the strong attachment of hypothalamic CPs to the infundibulo-tuberal area, Dott used a double transbasal and transventricular approach to these lesions, a strategy providing an optimal view and control of the tumor boundaries. The decisive mentorship of several legendary figures of physiology and neurosurgery greatly influenced Dott's surgical evolution. The experimental pituitary gland work he performed with Sir Edward Sharpey-Schäfer at the beginning of his career stirred Dott's curiosity about the issue of hypothalamus-pituitary relationships. As a result, he decided to move to Peter Bent Brigham Hospital (Boston, Massachusetts) in 1923, to train in neurosurgery and neuropathology under the guidance of the leaders in these fields, Harvey Williams Cushing (1869-1939) and Percival Sylvester Bailey (1892-1973). They inspired the young Dott and shared with him their clinical and pathological expertise, in addition to their surgical strategies for best approaching and removing these challenging tumors. In time, Dott would come to surpass his mentors. This

  8. A new species complex including Claviceps fusiformis and Claviceps hirtella

    Czech Academy of Sciences Publication Activity Database

    Pažoutová, Sylvie; Kolařík, Miroslav; Odvody, G.; Frederickson, D. E.; Olšovská, Jana; Man, Petr


    Roč. 31, - (2008), s. 95-110 ISSN 1560-2745 Grant - others:US(US) Intsormil Institutional research plan: CEZ:AV0Z50200510 Keywords : alkaloids * cenchrus * claviceps Subject RIV: EE - Microbiology, Virology Impact factor: 2.279, year: 2008

  9. Public Use of Online Hydrology Information for Harris County and Houston, Texas, during Hurricane Harvey and Suggested Improvement for Future Flood Events (United States)

    Lilly, M. R.; Feditova, A.; Levine, K.; Giardino, J. R.


    The Harris County Flood Control District has an impressive amount of information available for the public related to flood management and response. During Hurricane Harvey, this information was used by the authors to help address daily questions from family and friends living in the Houston area. Common near-real-time reporting data included precipitation and water levels. Maps included locations of data stations, stream or bayou conditions (in bank, out of bank) and watershed or drainage boundaries. In general, the data station reporting and online information was updating well throughout the hurricane and post-flooding period. Only a few of the data reporting stations had problems with water level sensor measurements. The overall information was helpful to hydrologists and floodplain managers. The online information could not easily answer all common questions residents may have during a flood event. Some of the more common questions were how to use the water-level information to know the potential extent of flooding and relative location of flooding to the location of residents. To help address the questions raised during the flooding on how to use the available water level data, we used Google Earth to get lot and intersection locations to help show the relative differences between nearby water-level stations and residences of interest. The reported resolution of the Google Earth elevation data is 1-foot. To help confirm the use of this data, we compared Google Earth approximate elevations with reported Harris County Floodplain Reference Mark individual reports. This method helped verify we could use the Google Earth information for approximate comparisons. We also faced questions on what routes to take if evacuation was needed, and where to go to get to higher ground elevations. Google Earth again provided a helpful and easy to use interface to look at road and intersection elevations and develop suggested routes for family and friends to take to avoid low

  10. Mapping the Extent and Magnitude of Severe Flooding Induced by Hurricanes Harvey, Irma, and Maria with Sentinel-1 SAR and InSAR Observations (United States)

    Zhang, B.; Koirala, R.; Oliver-Cabrera, T.; Wdowinski, S.; Osmanoglu, B.


    Hurricanes can cause winds, rainfall and storm surge, all of which could result in flooding. Between August and September 2017, Hurricanes Harvey, Irma and Maria made landfall over Texas, Florida and Puerto Rico causing destruction and damages. Flood mapping is important for water management and to estimate risks and property damage. Though water gauges are able to monitor water levels, they are normally distributed sparsely. To map flooding products of these extreme events, we use Synthetic Aperture Radar (SAR) observations acquired by the European satellite constellation Sentinel-1. We obtained two acquisitions from before each flooding event, a single acquisition during the hurricane, and two after each event, a total of five acquisitions. We use both amplitude and phase observations to map extent and magnitude of flooding respectively. To map flooding extents, we use amplitude images from before, after and if possible during the hurricane pass. A calibration is used to convert the image raw data to backscatter coefficient, termed sigma nought. We generate a composite of the two image layers using red and green bands to show the change of sigma nought between acquisitions, which directly reflects the extent of flooding. Because inundation can result with either an increase or decrease of sigma nought values depending on the surface scattering characteristics, we map flooded areas in location where sigma nought changes were above a detection threshold. To study magnitude of flooding we study Interferometric Synthetic Aperture Radar (InSAR) phase changes. Changes in the water level can be detected by the radar when the signal is reflected away from water surface and bounces again by another object (e.g. trees and/or buildings) known as double bounce phase. To generate meaningful interferograms, we compare phase information with the nearest water gauge records to verify our results. Preliminary results show that the three hurricanes caused flooding condition over

  11. Hurricane Harvey Riverine Flooding: Part 2: Integration of Heterogeneous Earth Observation Data for Comparative Analysis with High-Resolution Inundation Boundaries Reconstructed from Flood2D-GPU Model (United States)

    Jackson, C.; Sava, E.; Cervone, G.


    Hurricane Harvey has been noted as the wettest cyclone on record for the US as well as the most destructive (so far) for the 2017 hurricane season. An entire year worth of rainfall occurred over the course of a few days. The city of Houston was greatly impacted as the storm lingered over the city for five days, causing a record-breaking 50+ inches of rain as well as severe damage from flooding. Flood model simulations were performed to reconstruct the event in order to better understand, assess, and predict flooding dynamics for the future. Additionally, number of remote sensing platforms, and on ground instruments that provide near real-time data have also been used for flood identification, monitoring, and damage assessment. Although both flood models and remote sensing techniques are able to identify inundated areas, rapid and accurate flood prediction at a high spatio-temporal resolution remains a challenge. Thus a methodological approach which fuses the two techniques can help to better validate what is being modeled and observed. Recent advancements in data fusion techniques of remote sensing with near real time heterogeneous datasets have allowed emergency responders to more efficiently extract increasingly precise and relevant knowledge from the available information. In this work the use of multiple sources of contributed data, coupled with remotely sensed and open source geospatial datasets is demonstrated to generate an understanding of potential damage assessment for the floods after Hurricane Harvey in Harris County, Texas. The feasibility of integrating multiple sources at different temporal and spatial resolutions into hydrodynamic models for flood inundation simulations is assessed. Furthermore the contributed datasets are compared against a reconstructed flood extent generated from the Flood2D-GPU model.

  12. Arsenic Species in Edible Seaweeds Using In Vitro Biomimetic Digestion Determined by High-Performance Liquid Chromatography Inductively Coupled Plasma Mass Spectrometry

    Directory of Open Access Journals (Sweden)

    Yan-Fang Zhao


    Full Text Available Arsenite [As (III], arsenate [As (V], methylarsonate (MMA, and dimethylarsinate (DMA in five edible seaweeds (the brown algae Laminaria japonica, red algae Porphyra yezoensis, brown algae Undaria pinnatifida, brown algae Hizikia fusiformis, and green algae Enteromorpha prolifera were analyzed using in vitro digestion method determined by high-performance liquid chromatography inductively coupled plasma mass spectrometry. The results showed that DMA was found in the water extracts of all samples; As (III were detected in L. japonica and U. pinnatifida and about 23.0 and 0.15 mg/kg of As (V were found in H. fusiformis and E. prolifera respectively. However, after the gastrointestinal digestion, As (V was not detected in any of the five seaweeds. About 0.19 and 1.47 mg/kg of As (III was detected in the gastric extracts of L. japonica and H. fusiformis, respectively, and about 0.31 and 0.10 mg/kg of As (III were extracted from the intestinal extracts of Porphyra yezoensis and U. pinnatifida, respectively. The present results successfully reveal the differences of As species and levels in the water and biomimetic extracts of five edible seaweeds. The risk assessment of the inorganic arsenic in the five edible seaweeds based on present data showed almost no hazards to human health.

  13. El álbum visual como nueva forma promocional de la industria de la música: el caso de Let England Shake de PJ Harvey y Seamus Murphy

    Directory of Open Access Journals (Sweden)

    Ana María Sedeño-Valdellós


    Full Text Available El nuevo modelo de negocio para la industria fonográfica comienza a basar se en los contenidos digitales. Varios autores han estudiado y afirman que la industria musical experimenta un giro hacia el contenido audiovisual. Esto se enmarca en una nueva etapa de estética audiovisual caracterizada por la transmedialidad y la convergencia de medios en torno a formatos audiovi suales complejos. El álbum visual, como concepto formado por videoclips de todas las canciones de un disco, se consolida como un nuevo formato de promocional musical, híbrido entre cine y video musical. En el traba jo se realizará un análisis del álbum visual Let England Shake (PJ Harvey & Seamus Murphy, 2011, con unos criterios que tratan de buscar moti vos visuales que generen continuidad, unidad temática y narrativa para de mostrar su intensa coherencia con el álbum musical precedente. Se trata de definir el álbum visual y comenzar a delimitarlo frente a otros tipos de productos audiovisuales, así como examinar sus posibilidades de creación de sentido en la generación de una narrativa personal diferenciada para un artista/grupo musical.

  14. Study on the physiological activities of gamma-irradiated seafood cooking drips

    Energy Technology Data Exchange (ETDEWEB)

    Jo, Eu Ri; Kim, Yeon Joo; Choi, Jong Il; Sung, Nak Yun; Jung, Pil Moon; Kim, Jae Hun; Song, Beom Seok; Yoon, Yo Han; Lee, Ju Woon [Korea Atomic Energy Research Institute, Jeongeup (Korea, Republic of); Lee, Ju Yeoun [Chonbuk National University, Jeonju (Korea, Republic of)


    Cooking drips which were obtained as by-product after seafood processing in the food industries, still contain lost of proteins, carbohydrates, and other functional materials. This study was conducted to investigate the effect of gamma irradiation on the biological activities of seafood cooking drips. When the cooking drips of Hizikia fusiformis, Enteroctopus dofleini and Thunnus thynnus were irradiated, the antioxidant activities, whitening effect, and angiotensin I converting enzyme inhibition activity of the ethanol extract from seafood cooking drips were all increased by gamma irradiation. This was because of the increased extraction efficiency of available compounds by irradiation. These results suggested that the seafood cooking drips, wasted as by-products, can be used as functional compounds with gamma irradiation treatment.

  15. Phenolic Content and Antioxidant Capacity in Algal Food Products

    Directory of Open Access Journals (Sweden)

    Ludmila Machu


    Full Text Available The study objective was to investigate total phenolic content using Folin-Ciocalteu’s method, to assess nine phenols by HPLC, to determine antioxidant capacity of the water soluble compounds (ACW by a photochemiluminescence method, and to calculate the correlation coefficients in commercial algal food products from brown (Laminaria japonica, Eisenia bicyclis, Hizikia fusiformis, Undaria pinnatifida and red (Porphyra tenera, Palmaria palmata seaweed, green freshwater algae (Chlorella pyrenoidosa, and cyanobacteria (Spirulina platensis. HPLC analysis showed that the most abundant phenolic compound was epicatechin. From spectrophotometry and ACW determination it was evident that brown seaweed Eisenia bicyclis was the sample with the highest phenolic and ACW values (193 mg·g−1 GAE; 7.53 µmol AA·g−1, respectively. A linear relationship existed between ACW and phenolic contents (r = 0.99. Some algal products seem to be promising functional foods rich in polyphenols.

  16. Toxicity of so-called edible hijiki seaweed (Sargassum fusiforme) containing inorganic arsenic. (United States)

    Yokoi, Katsuhiko; Konomi, Aki


    The UK Food Standards Agency and its counterparts in other countries have warned consumers not to eat hijiki (Sargassum fusiforme; synonym Hizikia fusiformis), a Sargasso seaweed, because it contains large amounts of inorganic arsenic. We investigated dietary exposure of hijiki in weaning male F344/N rats fed an AIN-93G diet supplemented with 3% (w/w) hijiki powder for 7 weeks, compared with those fed only an AIN-93G diet. Body weight, body temperature, blood and tissue arsenic concentrations, plasma biochemistry and hematological parameters were measured. We found that feeding rats a 3% hijiki diet led to a marked accumulation of arsenic in blood and tissues, and evoked a high body temperature and abnormal blood biochemistry including elevated plasma alkaline phosphatase activity and inorganic phosphorus, consistent with arsenic poisoning. These findings should prompt further investigations to identify the health hazards related to consumption of hijiki and related Sargassum species in humans. Copyright © 2012 Elsevier Inc. All rights reserved.

  17. Study on the physiological activities of gamma-irradiated seafood cooking drips

    International Nuclear Information System (INIS)

    Jo, Eu Ri; Kim, Yeon Joo; Choi, Jong Il; Sung, Nak Yun; Jung, Pil Moon; Kim, Jae Hun; Song, Beom Seok; Yoon, Yo Han; Lee, Ju Woon; Lee, Ju Yeoun


    Cooking drips which were obtained as by-product after seafood processing in the food industries, still contain lost of proteins, carbohydrates, and other functional materials. This study was conducted to investigate the effect of gamma irradiation on the biological activities of seafood cooking drips. When the cooking drips of Hizikia fusiformis, Enteroctopus dofleini and Thunnus thynnus were irradiated, the antioxidant activities, whitening effect, and angiotensin I converting enzyme inhibition activity of the ethanol extract from seafood cooking drips were all increased by gamma irradiation. This was because of the increased extraction efficiency of available compounds by irradiation. These results suggested that the seafood cooking drips, wasted as by-products, can be used as functional compounds with gamma irradiation treatment

  18. Effect of gamma irradiation on the amino acid contents of seafood cooking drips

    International Nuclear Information System (INIS)

    Lee, Ju Woon; Kim, Yeon Joo; Choi, Jong Il; Kim, Yun Joo; Kim, Jae Hun; Kim, Jin Kyu; Byun, Myung Woo; Kwon, Joong Ho; Ahn, Dong Hyun; Chun, Byung Soo


    In this study, the effects of gamma irradiation on the change of structural and free amino acids contents of cooking drips from Hizikia fusiformis (HF) and Enteroctopus dofleini (ED) were investigated. The main structural amino acids were glutamic acid in HF cooking drip, and glutamic acid, glycine, arginine and aspartic acid in ED cooking drip, respectively. The concentrations of structural amino acids in both cooking drip extracts were decreased by the gamma irradiation at the dose of 10 kGy. Especially, the sulfur-containing amino acids were severely degraded by the irradiation. In free amino acid, ED cooking drip extract was contained the larger amount of free amino acid than that of HF cooking drip affecting its rich flavor. The free amino acid concentrations of cooking drips extracts from HF and ED were both increased by irradiation, and it explained the higher protein content by the irradiation

  19. Genotoxicological safety of the ethanol extract from seafood cooking drips by gamma irradiation

    International Nuclear Information System (INIS)

    Kim, Hyun Joo; Choi, Jong Il; Lee, Hee Sub; Kim, Jae Hun; Byun, Myung Woo; Chun, Byung Soo; Ahn, Dong Hyun; Yook, Hong Sun; Kim, Kee Hyuk


    Although seafood cooking drips were the byproducts from the fishery industry it was known that the cooking drips had many nutrients and could be used as functional materials. Previously, the physiological properties of cooking drips were shown to be increased by a gamma irradiation. But, there was no report on the safe for the genotoxicity on the irradiation. In this study, the genotoxicity of the cooking drips from Hizikia fusiformis, Enteroctopus dofleni and Thunnus thynnus was evaluated by the Ames test (Salmonella typhimurium reversion assay) and the SOS chromotest. The results from all samples were negative in the bacterial reversion assay with S. typhimurium TA98, TA100. No mutagenicity was detected in the assay, both with and without metabolic activation. The SOS chromotest also indicated that the gamma-irradiated seafood cooking drips did not show any mutagenicity. Therefore, this study indicated that gamma irradiation could be used for the hygiene, functional properties and processibility of seafood cooking drips


    Directory of Open Access Journals (Sweden)

    Muhammad Firdaus


    yang bersumber dari LED dengan cahaya monokromatis merah (M, biru (B, dan biru-merah (BM, serta cahaya dari lampu fluoresens sebagai kontrol (K. Puncak kepadatan sel terjadi pada hari ke-18 dengan kepadatan masing-masing sebanyak 5,56 x 104 sel/mL (M; 1,65 x 104 sel/mL (B; 4,15 x 104 sel/mL (BM; dan 4,56 x 104 sel/mL (K. Perlakuan pencahayaan LED dengan cahaya monokromatis merah mencapai biomassa panen tertinggi sebesar 3,91 mg/mL dengan kandungan protein 49,77%; lemak 19,61%; karbohidrat 6,15%; serat kasar 0,00%; dan abu 24,48%. Pencahayaan dengan LED merah berpotensi diaplikasikan sebagai sumber cahaya dalam produksi Spirulina.

  1. Severe Sepsis Secondary to Persistent Lysinibacillus sphaericus, Lysinibacillus fusiformis and Paenibacillus amylolyticus Bacteremia

    Directory of Open Access Journals (Sweden)

    Eric Wenzler


    Full Text Available Lysinibacillus and Paenibacillus are pervasive bacteria rarely associated with human disease. Less sophisticated microbiology techniques may frequently incorrectly identify these genera as Bacillus spp., often regarded as environmental contamination. This report describes a case of severe sepsis due to persistent Lysinibacillus and Paenibacillus bacteremia, identified by matrix-assisted laser desorption and ionization time-of-flight mass spectroscopy and 16S rRNA gene sequencing.

  2. Bioluminescence and the Actin Cytoskeleton in the Dinoflagellate Pyrocystis fusiformis: An Examination of Organelle Transport and Mechanotransduction


    McDougall, Carrie A.


    Bioluminescence (BL), light produced by organisms, is a diverse and widespread marine phenomenon. yet little studied by researchers. Major contributors to sea surface BL displays are dinoflagellates, which produce rapid BL flashes upon fluid motion; mechanical stimulation triggers a 200-ms flash within 20 ms, representing one of the most rapid sensor-effector transduction systems described. In some dinoflagellate species the sensor-effector link is not constant throughout a 24-hour period. Me...


    Federal Emergency Management Agency, Department of Homeland Security — The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk...

  4. Our underpinnings: a bicentennial view. The 1975 Harvey Cushing oration. (United States)

    McCracken, P W


    The author describes the emergence of the liberal traditions which is the foundation of the political and economic systems in this country and considers policies that may affect our social and economic future.

  5. Nova Southeastern University (NSU) Guy Harvey Oceanographic Center (United States)

    College of Psychology Dr. Kiran C. Patel College of Allopathic Medicine Dr. Kiran C. Patel College of , dentistry, law, and psychology. Certificate Receive a graduate level certificate to enhance your skills Institute Core Services & Equipment HPD Research Undergraduate Research Community Community Outreach

  6. Solanaceae III: henbane, hags and Hawley Harvey Crippen. (United States)

    Lee, M R


    Hyoscyamus, the henbane, is one of the drugs of the ancients. Initially used both as a poison and narcotic, it was widely adopted by witches, wizards and soothsayers as a component of their hallucinatory and flying ointments. It was also used by notorious poisoners such as Madame Voisin in France. Eventually, in the nineteenth century its active principle was isolated by Ladenburg and called l-hyoscine. It proved to be a tropane alkaloid very similar to atropine. These two alkaloids proved to be very important in the study of the parasympathetic component of the autonomic nervous system, and together with physostigmine, allowed the major neurotransmitter acetylcholine to be isolated and its mechanisms of action to be characterised. The Crippen murder case in 1910 gave hyoscine further fame, indeed, notoriety. The unassuming homeopathic doctor murdered his wife with the alkaloid and then decamped for Canada with his mistress Ethel Le Neve. The case became a worldwide sensation for several reasons: the arrest of the fugitive couple by wireless telegraphy (Marconigram) and the extensive chemical and histological evidence presented by Willcox and Spilsbury. Some authorities claim that this was the beginning of the science of forensic medicine in Britain. Hyoscine is now hardly ever used in modern therapeutics but its history from antiquity to the witches and on to Dr Crippen is both bizarre and fascinating.

  7. Photoprotective Effect of a Polyopes affinis (Harvey) Kawaguchi and ...

    African Journals Online (AJOL)

    anion or hydroxyl radical was detected using an electron spin resonance spectrometer after reaction with the nitrone spin trap. ... (A08-0000870) has been deposited at the herbarium of Jeju .... frosted microscopic slide pre-coated with 1 %.

  8. Concentrations of 99Tc and 137Cs in edible kelps and sea urchin ovaries from the northern part of Japan

    International Nuclear Information System (INIS)

    Ohtsuka, Y.; Iyogi, T.; Takaku, Y.; Hisamatsu, S.; Sekine, T.


    The first commercial nuclear fuel reprocessing plant in Japan is located in Rokkasho Village, Aomori Prefecture, and is now under the active test using actual spent nuclear fuels. Since the plant will release small amount of 99 Tc to the ocean, the concentration of 99 Tc in seawater nearby the plant will possibly increase in future. Since it is important to get background concentration levels of 99 Tc and 137 Cs in marine products from the ocean nearby the plant for assessing the effect to the concentration levels by the plant, the nuclides in edible kelps and sea urchin ovaries from the northern part of Japan (Aomori, Hokkaido and Iwate) were observed. Concentrations of 99 Tc in the kelps were lower than those reported for other non-edible seaweeds (Sargassum thunbergii) in Aomori, and the same level to the reported value of Hizikia fusiformis in Kyushu. 99 Tc concentrations in the urchin ovaries were lower than the detection limit of our method, and concentrations of 137 Cs in them were similar to these in the kelps. It suggested that 99 Tc is not concentrated in sea urchin ovaries. This work was supported by a grant from Aomori prefecture, Japan. (author)

  9. The protective effects of fucosterol against skin damage in UVB-irradiated human dermal fibroblasts. (United States)

    Hwang, Eunson; Park, Sang-Yong; Sun, Zheng-wang; Shin, Heon-Sub; Lee, Don-Gil; Yi, Tae Hoo


    Exposure to ultraviolet (UV) light causes matrix metalloproteinase (MMP) overexpression and extracellular matrix depletion, leading to skin photoaging. The activation of MMP is related to increased interlukin-6 (IL-6) and type I procollagen production, which is regulated by transforming growth factor-β1 (TGF-β1). Activator protein-1 (AP-1) activation induces MMP-1 production and reduces type I procollagen secretion. Fucosterol, which is extracted and purified from the brown algae Hizikia fusiformis, is a phytosterol. We assessed the effects of fucosterol on photodamage and investigated its molecular mechanism of action in UVB-irradiated normal human dermal fibroblasts by using enzyme-linked immunosorbent assay, Western blot analysis, and reverse transcription-polymerase chain reaction. Our results showed that fucosterol significantly decreased the UVB-induced expression of MMP-1, IL-6, p-c-Jun, and p-c-Fos. Additionally, fucosterol markedly increased the UVB-induced production of type I procollagen and TGF-β1. Our results indicate that fucosterol regulates MMP-1 and type I procollagen expression by modulating AP-1 and TGF-β1 signaling and that MMP-1 activation is correlated with IL-6. These data suggest that fucosterol is a promising botanical agent to protect against skin photodamage.

  10. Influence of Extractive Solvents on Lipid and Fatty Acids Content of Edible Freshwater Algal and Seaweed Products, the Green Microalga Chlorella kessleri and the Cyanobacterium Spirulina platensis

    Directory of Open Access Journals (Sweden)

    Jarmila Vavra Ambrozova


    Full Text Available Total lipid contents of green (Chlorella pyrenoidosa, C, red (Porphyra tenera, N; Palmaria palmata, D, and brown (Laminaria japonica, K; Eisenia bicyclis, A; Undaria pinnatifida, W, WI; Hizikia fusiformis, H commercial edible algal and cyanobacterial (Spirulina platensis, S products, and autotrophically cultivated samples of the green microalga Chlorella kessleri (CK and the cyanobacterium Spirulina platensis (SP were determined using a solvent mixture of methanol/chloroform/water (1:2:1, v/v/v, solvent I and n-hexane (solvent II. Total lipid contents ranged from 0.64% (II to 18.02% (I by dry weight and the highest total lipid content was observed in the autotrophically cultivated cyanobacterium Spirulina platensis. Solvent mixture I was found to be more effective than solvent II. Fatty acids were determined by gas chromatography of their methyl esters (% of total FAMEs. Generally, the predominant fatty acids (all results for extractions with solvent mixture I were saturated palmitic acid (C16:0; 24.64%–65.49%, monounsaturated oleic acid (C18:1(n-9; 2.79%–26.45%, polyunsaturated linoleic acid (C18:2(n-6; 0.71%–36.38%, α-linolenic acid (C18:3(n-3; 0.00%–21.29%, γ-linolenic acid (C18:3(n-6; 1.94%–17.36%, and arachidonic acid (C20:4(n-6; 0.00%–15.37%. The highest content of ω-3 fatty acids (21.29% was determined in Chlorella pyrenoidosa using solvent I, while conversely, the highest content of ω-6 fatty acids (41.42% was observed in Chlorella kessleri using the same solvent.

  11. Harvey Nursing Home Terenure, 122-124 Terenure Road West, Terenure Road, Dublin 6w.

    LENUS (Irish Health Repository)

    Lindsay, K L


    Pregnant women in countries of Sub-Saharan Africa (SSA) are at risk of poor nutritional status and adverse outcomes as a result of poverty, food insecurity, sub-optimal healthcare facilities, frequent infections and frequent pregnancies. Studies from Nigeria, for example, have revealed a high prevalence of both under- and over-nutrition, as well as nutrient deficiencies, including iron, folate, vitamin D and vitamin A. Subsequently, obstetric complications, including hypertension, anaemia, neural tube defects, night-blindness, low birth weight and maternal and perinatal mortality, are common. Migration patterns from SSA to the Western world are on the rise in recent years, with Nigerians now representing the most prevalent immigrant African population in many developed countries. However, the effect of immigration, if any, on the nutritional status and pregnancy outcomes of these women in their host countries has not yet been studied. Consequently, it is unknown to what extent the nutritional deficiencies and pregnancy complications occurring in Nigeria, and other countries of SSA, present in these women post-emigration. This may result in missed opportunities for appropriate antenatal care of a potential high-risk group in pregnancy. The present review discusses the literature regarding nutrition in pregnancy among SSA women, using Nigeria as an example, the common nutrition-related complications that arise and the subsequent obstetric outcomes. The concept of dietary acculturation among immigrant groups is also discussed and deficiencies in the literature regarding studies on the diets of pregnant immigrant women are highlighted.

  12. Chapter-10.ppt | Chemistry-352 | harvey | ...

    Indian Academy of Sciences (India)

    error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year meeting of the Academy will be held from 29–30 June 2018 in Infosys, Mysuru ...

  13. Designing a Utopia: An Architectural Studio Experience on David Harvey's "Edilia" (United States)

    Yesilkaya, Nese Gurallar


    The design of a utopia was devised as a studio project in order to bring critical thinking into the design studio and to stimulate creativity. By suggesting a utopia, the pedagogical aim was to improve progressive thinking and critical thought in the design education of architectural students -- and also future architects. From this perspective,…

  14. Some ecological and biochemical observations on Caloglossa lepreiurii (Harvey) from Zuri estuary, Goa

    Digital Repository Service at National Institute of Oceanography (India)

    Jagtap, T.G.; Untawale, A.G.

    January and February to nil. The alga prefers diffused light, fairly high temperatures, high nutrients and optimum salinity ranging between 10 ppt to 20 ppt. Major metabolites showed 272.75 mg/g dry weight was recorded in September. Organic carbon ranged...

  15. Extraction and Identification of Phlorotannins from the Brown Alga, Sargassum fusiforme (Harvey) Setchell (United States)

    Li, Yajing; Fu, Xiaoting; Duan, Delin; Liu, Xiaoyong; Xu, Jiachao; Gao, Xin


    Phlorotannins are a group of complex polymers of phloroglucinol (1,3,5-trihydroxybenzene), which are unique compounds from marine brown algae. In our present study, a procedure for extraction and enrichment of phlorotannins from S. fusiforme with highly antioxidant potentials was established. After comparison of different extraction methods, the optimal extraction conditions were established as follows. The freeze-dried seaweed powder was extracted with 30% ethanol-water solvent with a solid/liquid ratio of 1:5 at temperature of 25 °C for 30 min. After extraction, the phlorotannins were fractioned by different solvents, among which the ethyl acetate fraction exhibited both the highest total phlorotannin content (88.48 ± 0.30 mg PGE/100 mg extract) and the highest antioxidant activities. The extracts obtained from these locations were further purified and characterized using a modified UHPLC-QQQ-MS method. Compounds with 42 different molecular weights were detected and tentatively identified, among which the fuhalol-type phlorotannins were the dominant compounds, followed by phlorethols and fucophlorethols with diverse degree of polymerization. Eckol-type phlorotannins including some newly discovered carmalol derivatives were detected in Sargassum species for the first time. Our study not only described the complex phlorotannins composition in S. fusiforme, but also highlighted the challenges involved in structural elucidation of these compounds. PMID:28230766

  16. Revamping EAGLE-I and experiences during Hurricanes Harvey and Irma (United States)

    Sanyal, J.; Chinthavali, S.; Myers, A.; Newby, S.; Redmon, D.


    EAGLE-I, the Environment for Analysis of Geo-Located Energy Information) is an operational system for the U.S. Department of Energy's Office of Electricity Delivery and Energy Reliability (OE), Infrastructure Security and Energy Restoration (ISER) division to provide near real-time situational awareness of the nation's energy sector. The system geospatially maps energy assets and systems in electricity, oil and natural gas, petroleum, and coal, and tie together a variety of data sources into one visualization platform. The system serves the needs of the ESF#12 (Emergency Support Function - Energy) community and has users from FEMA, USDA, DHS, and other federal and state emergency response agencies. During the hurricane season, the EAGLE-I team improved the coverage of electric customers in areas where the hurricanes were expected to make landfall, provided custom reports for Puerto Rico using whatever data was available, and supported various requests for data during the events. Various attempts were also made to establish a direct contact with utilities. Acute shortage of information was felt as utility systems went down, particularly in the territories, which led to considerations of using indirect mechanisms such as processing night lights imagery. As the EAGLE-I system undergoes a significant modernization, these experiences have helped understand and guide priorities in the modernization.

  17. Extraction and Identification of Phlorotannins from the Brown Alga, Sargassum fusiforme (Harvey Setchell

    Directory of Open Access Journals (Sweden)

    Yajing Li


    Full Text Available Phlorotannins are a group of complex polymers of phloroglucinol (1,3,5-trihydroxybenzene, which are unique compounds from marine brown algae. In our present study, a procedure for extraction and enrichment of phlorotannins from S. fusiforme with highly antioxidant potentials was established. After comparison of different extraction methods, the optimal extraction conditions were established as follows. The freeze-dried seaweed powder was extracted with 30% ethanol-water solvent with a solid/liquid ratio of 1:5 at temperature of 25 °C for 30 min. After extraction, the phlorotannins were fractioned by different solvents, among which the ethyl acetate fraction exhibited both the highest total phlorotannin content (88.48 ± 0.30 mg PGE/100 mg extract and the highest antioxidant activities. The extracts obtained from these locations were further purified and characterized using a modified UHPLC-QQQ-MS method. Compounds with 42 different molecular weights were detected and tentatively identified, among which the fuhalol-type phlorotannins were the dominant compounds, followed by phlorethols and fucophlorethols with diverse degree of polymerization. Eckol-type phlorotannins including some newly discovered carmalol derivatives were detected in Sargassum species for the first time. Our study not only described the complex phlorotannins composition in S. fusiforme, but also highlighted the challenges involved in structural elucidation of these compounds.

  18. Annotating patient clinical records with syntactic chunks and named entities: the Harvey Corpus. (United States)

    Savkov, Aleksandar; Carroll, John; Koeling, Rob; Cassell, Jackie

    The free text notes typed by physicians during patient consultations contain valuable information for the study of disease and treatment. These notes are difficult to process by existing natural language analysis tools since they are highly telegraphic (omitting many words), and contain many spelling mistakes, inconsistencies in punctuation, and non-standard word order. To support information extraction and classification tasks over such text, we describe a de-identified corpus of free text notes, a shallow syntactic and named entity annotation scheme for this kind of text, and an approach to training domain specialists with no linguistic background to annotate the text. Finally, we present a statistical chunking system for such clinical text with a stable learning rate and good accuracy, indicating that the manual annotation is consistent and that the annotation scheme is tractable for machine learning.

  19. The short-term effect on carbonate parameters from hurricanes Harvey, Irma, and Maria. (United States)

    Jonsson, B. F.; Salisbury, J., II; Melendez Oyola, M.


    Tropical storms and hurricanes are events with potentially extreme impacts on ocean conditions. Strong winds generating vigorous vertical mixing and extensive precipitation affect both temperature and salinity in the mixed layer. The surface temperature, for example, decreased several degrees C in the wake of both hurricanes Irma and Maria. While it is clear that the physical state of the surface ocean is affected by hurricanes, how such storms affect carbonate system variability is still an open question. Changes in temperature and salinity combined with extreme winds create the potential for changes in solubility of pCO2, and large net fluxes of CO2 across the air-sea interface. A deepening of the mixed layer from wind-driven mixing may further affect the carbonate system, as sub-surface waters rich in dissolved inorganic carbon and nutrients are entrained to the surface. To examine these process, we evaluate simulated fields of temperature and salinity (from a 1/12° global data assimilated General Circulation Model), satellite ocean color and wind speed data within the context of a conceptual box model. Our model is compared to observed pCO2, wind speed, temperature and salinity data from buoyed assets that survived the storms. We address total CO2 fluxes, the relative effects temperature, salinity and biology on the carbonate system, and the time scales over which the system is "restored" to its initial state. We explore the connection between the magnitude of perturbation and the length of time it takes for the system to recover, and observe recovery over time scales lasting from days to weeks depending on the storm. Although not observed in these data, we speculate that depending on the buoyancy frequency, recovery elsewhere could take place over monthly time scales, raising the potential that hurricanes could exacerbate or alleviate environmental stresses on calcifying marine organisms.

  20. Administrative Relief for Grantees impacted by Hurricanes Harvey, Irma, and Maria (United States)

    On October 26, 2017, the Office of Management and Budget issued the attached memorandum, Administrative Relief for Grantees impacted by Hurricanes, to provide Federal agencies with flexibility to assist their grant applicants and recipients.

  1. Concentration of 99Tc in edible seaweed (Konbu) in the northern part of Japan

    International Nuclear Information System (INIS)

    Ohtsuka, Yoshihito; Iyogi, Takashi; Kakiuchi, Hideki; Hisamatsu, Shun'ichi; Inaba, Jiro


    ). Assuming that mean water contents of these dry samples is 80%, mean radioactivity was evaluated as approximately 5.3 mBq kg -1 -fresh, a similar level to Hiziki (Hizikia fusiformis, edible) in Kyushu, and lower than the reported values for non-edible seaweeds (Sargassum thunbergii, Ishige sinicola, Ishige okamurai) in Japan. The mean 99 Tc/ 137 Cs activity ratio in the samples was 0.07±0.04, which is greater than that (0.0003) reported for seawater around Kyushu, Japan, suggesting that Tc is accumulated selectively by Konbu in comparison to 137 Cs. (author)

  2. Effects of Dietary Fermented Seaweed and Seaweed Fusiforme on Growth Performance, Carcass Parameters and Immunoglobulin Concentration in Broiler Chicks

    Directory of Open Access Journals (Sweden)

    Y. J. Choi


    Full Text Available This study was conducted to investigate the effects of brown seaweed (Undaria pinnatifida by-product and seaweed fusiforme (Hizikia fusiformis by-product supplementation on growth performance and blood profiles including serum immunoglobulin (Ig in broilers. Fermentation of seaweeds was conducted by Bacillus subtilis and Aspergillus oryzae. In a 5-wk feeding trial, 750 one-d-old broiler chicks were divided into 5 groups, and were assigned to the control diet or experimental diets including control+0.5% brown seaweed (BS by-product, control+0.5% seaweed fusiforme (SF by-product, control+0.5% fermented brown seaweed (FBS by-product, and control+0.5% fermented seaweed fusiforme (FSF by-product. As a consequence, body weight gain (BWG and gain:feed of seaweed by-product groups were clearly higher, when compared to those of control diet group from d 18 to 35 and the entire experimental period (p<0.05. In mortality rate, seaweed by-product groups were significantly lower when compared to control diet group during entire experimental period (p<0.05. However, Feed Intake of experimental diets group was not different from that of the control group during the entire experimental period. Whereas, Feed Intake of fermented seaweed by-product groups was lower than that of non-fermented seaweed groups (p<0.05. Total organ weights, lipids, and glutamic oxalacetic transaminase (GOT of all treatment groups were not different from those of control group. However, glutamic pyruvate transaminase (GPT of all treatment groups was higher than that of control group at d 17 (p<0.05. In case of serum Igs concentration, the concentration of IgA antibody in BS, SF, FSF treatment groups was significantly higher than in control group at d 35 (p<0.01. IgA concentration in FBS supplementation groups was negligibly decreased when compared to the control group. IgM concentration in the serums of all treatment groups was significantly higher than in control group (p<0.05 and in

  3. Investigation of Seasonal Variations in Biochemical Composition of Polysiphonia Morrowii (Harvey) From Different Locations in the Strait of Canakkale


    İrkin, Latife Ceyda; Erduğan, Hüseyin


    As a protein source for human consumption, terrestrial animal production alone may not be sufficient as a food supply for the increasing world population. The availability of high value food resources in the marine environment presents a serious potential for meeting an important amount of the food demand of the increasing world population. Studies on the utilization of marine algae as a food resource for human consumption have become an important topic in human nutrition. Marine algae with i...

  4. Malignant melanoma as a model for cancer education and prevention. 1989 Harvey lecture American Association for Cancer Education. (United States)

    Robinson, W A


    Cutaneous malignant melanoma is one of the most rapidly increasing and highly fatal cancers in the world today. Current estimates suggest that 1 in 90-100 Caucasians will develop MM by the year 2000, and 20%-30% will eventually die of the disease. The cause of the epidemic of malignant melanoma is clearly increasing exposure to the sun from lifestyle and clothing habits that have changed over the past 50 years. The disease occurs primarily in preexisting nevi in sun-exposed sites in specific high risk populations who can be, and have been, defined. These are primarily middle- and upper middle-class Caucasians with blue eyes, brown or blonde hair, and fair skin, with predominantly indoor occupations who spend, or have spent, considerable time outdoors in leisure and other activities. The presence of a clearly definable cause (exposure to the sun) in specific risk groups, the ease of early detection by simple means, and the devastating outcome of late diagnosis make malignant melanoma an ideal model for teaching the basic tenets of cancer causation, development, and prevention to the public and professionals alike.

  5. Harvey murine sarcoma virus p21 ras protein: biological and biochemical significance of the cysteine nearest the carboxy terminus

    DEFF Research Database (Denmark)

    Willumsen, B M; Norris, K; Papageorge, A G


    localization. We have now further characterized the post-translational processing of these mutants and have also studied two C-terminal v-rasH point mutants: one encodes serine in place of cysteine-186, the other threonine for valine-187. The Thr-187 mutant was transformation-competent, and its p21 protein...... not undergo the posttranslational processing common to biologically active ras proteins: their electrophoretic migration rate did not change, they remained in the cytosol, and they failed to bind lipid. Since the cell-encoded ras proteins also contain this cysteine, we conclude that this amino acid residue...

  6. De Reclus a Harvey, la resignificación del territorio en la construcción de la sustentabilidad

    Directory of Open Access Journals (Sweden)

    Arturo V. Arreola Muñoz


    Full Text Available El objetivo de este artículo es reflexionar teórica y conceptualmente sobre el territorio y su resignificación en la construcción de la sustentabilidad. Se hace referencia a la teoría de sistemas complejos, desde un enfoque constructivista, y de la geografía y la ecología política, como aproximación a las nociones de apropiación territorial, territorialización, desterritorialización y reterritorialización. La discusión deductiva de cinco tesis concluye con un postulado que retoma la propuesta de Gunderson y Holling (2002, para explicar los procesos adaptativos de los sistemas socioterritoriales, los cuales están mediados a partir de cadenas dialógicas. Actualmente, desde los movimientos sociales emergentes, se tejen innovaciones que recrean de manera híbrida conceptos como diversidad, autonomía, equidad y sustentabilidad. Ello permite resignificar el diálogo político del paradigma por el territorio entre los espacios de esperanza –redes antisistémicas–, los exclusivos –redes globalizadas– y los de desesperanza –espacios fragmentados–.

  7. Further genetic localization of the transforming sequences of the p21 v-ras gene of Harvey murine sarcoma virus

    DEFF Research Database (Denmark)

    Willumsen, B M; Ellis, R W; Scolnick, E M


    , DNA sequence analysis has found a single open reading frame large enough to encode the viral p21 (R. Dhar, R. W. Ellis, T. Y. Shih, S. Oroszlan, B. Shapiro, J. Maizel, D. Lowy, and E. M. Scolnick, Science 217:934-937, 1982). There are three potential in-frame ATG initiation codons at the 5' end...

  8. Screening of probiotic bacteria and its role on artificial infection of Vibrio harvey in white shrimp (Litopenaeus vannamei

    Directory of Open Access Journals (Sweden)

    . Sukenda


    Full Text Available Probiotic was screened from 28 strains of normal bacterial flora isolated from rearing water in a Litopenaeus vannamei farm based on its inhibitory activity against the growth of Vibrio harveyi.  Antibacterial activity was also tested in vivo to V. harveyi in L. vannamei.  The result showed that  the probiotic has a antibacterial effect on V. harveyi.  The in vivo test showed that shrimps injected with probiotic previously before challenged with V. harveyi has survival higher than control.  Probiotic isolate was suspected as Vibrio furnissi. Keywords:  biocontrol, inhibitory activity, Vibrio furnissi, Vibrio harveyi, Litopenaeus vannamei   AbstraK Bakteri probiotik ditapis dari 28 strain bacteria flora yang diisolasi dari air pemeliharaan udang vaname Litopenaeus vannamei berdasarkan aktivitas penghambatannya terhadap pertumbuhan Vibrio harveyi.  Aktivitas bakteri probiotik juga diuji secara in vivo terhadap V. harveyi pada udang putih.  Hasil penelitian menunjukkan bahwa bakteri probiotik isolat memiliki kemampuan antibakteria terhadap V. harveyi.  Uji in vivo menunjukkan bahwa udang yang diinjeksi probiotik sebelum diuji tantang dengan V. harveyi memiliki kelangsungan hidup lebih tinggi daripada kontrol.  Isolat probiotik tersebut diduga adalah Vibrio furnissi. Kata kunci:  biokontrol, aktivitas penghambatan, Vibrio furnissi, Vibrio harveyi, Litopenaeus vannamei

  9. Screening of probiotic bacteria and its role on artificial infection of Vibrio harvey in white shrimp (Litopenaeus vannamei)


    . Sukenda; A.J. Sihombing; Fitria Novianti; . Widanarni


    Probiotic was screened from 28 strains of normal bacterial flora isolated from rearing water in a Litopenaeus vannamei farm based on its inhibitory activity against the growth of Vibrio harveyi.  Antibacterial activity was also tested in vivo to V. harveyi in L. vannamei.  The result showed that  the probiotic has a antibacterial effect on V. harveyi.  The in vivo test showed that shrimps injected with probiotic previously before challenged with V. harveyi has survival higher than control.  P...

  10. Sellar door: Harvey Cushing's entry into the pituitary gland, the unabridged Johns Hopkins experience 1896-1912. (United States)

    Pendleton, Courtney; Adams, Hadie; Mathioudakis, Nestoras; Quiñones-Hinojosa, Alfredo


    To review the original surgical records from the Johns Hopkins Hospital, and analyze the records of patients Cushing treated for pituitary disorders from 1896 to 1912. Following IRB approval, and through the courtesy of the Alan Mason Chesney Archives, we reviewed the original surgical files from the Johns Hopkins Hospital. Patients presenting with pituitary-related symptoms, who underwent surgical treatment directed at the pituitary gland, were selected for further review. Thirty-seven patients who underwent surgical intervention for pituitary disorders were found. Of these patients, 12 were mentioned only briefly in Cushing's 1912 monograph, whereas 6 were not described at all. The remaining 19 were documented by Cushing in his 1912 monograph. Cushing used three main surgical approaches to the pituitary: transsphenoidal, transcranial, and the subfrontal "omega incision." There were 6 inpatient deaths. The mean time to last follow-up was 41.0 months. At follow-up, headache was the most common unresolved symptom. This review highlights Cushing's accomplishments in the surgical treatment of suspected pituitary pathology during his early career as a young attending at Johns Hopkins Hospital. It reveals new information about patients whom Cushing did not include in his publications detailing his surgical experience at the Johns Hopkins Hospital. Copyright © 2013 Elsevier Inc. All rights reserved.

  11. On the shoulders of giants: Harvey Cushing's experience with acromegaly and gigantism at the Johns Hopkins Hospital, 1896-1912. (United States)

    Pendleton, Courtney; Adams, Hadie; Salvatori, Roberto; Wand, Gary; Quiñones-Hinojosa, Alfredo


    A review of Dr. Cushing's surgical cases at Johns Hopkins Hospital revealed new information about his early operative experience with acromegaly. Although in 1912 Cushing published selective case studies regarding this work, a review of all his operations for acromegaly during his early years has never been reported. We uncovered 37 patients who Cushing treated with surgical intervention directed at the pituitary gland. Of these, nine patients who presented with symptoms of acromegaly, and one with symptoms of gigantism were selected for further review. Two patients underwent transfrontal 'omega incision' approaches, and the remaining eight underwent transsphenoidal approaches. Of the 10 patients, 6 were male. The mean age was 38.0 years. The mean hospital stay was 39.4 days. There was one inpatient death during primary interventions (10%) and three patients were deceased at the time of last follow-up (33%). The mean time to death, calculated from the date of the primary surgical intervention, and including inpatient and outpatient deaths, was 11.3 months. The mean time to last follow-up, calculated from the day of discharge, was 59.3 months. At the time of last follow-up, two patients reported resolution of headache; four patients reported continued visual deficits, and two patients reported ongoing changes in mental status. This review analyzes the outcomes for 10 patients who underwent surgical intervention for acromegaly or gigantism, and offers an explanation for Cushing's transition from the transfrontal "omega incision" to the transsphenoidal approach while practicing at the Johns Hopkins Hospital.

  12. On the shoulders of giants: Harvey Cushing's experience with acromegaly and gigantism at the Johns Hopkins Hospital, 1896-1912.

    NARCIS (Netherlands)

    Pendleton, C.; Adams, H.; Salvatori, R.; Wand, G.; Quinones-Hinojosa, A.


    A review of Dr. Cushing's surgical cases at Johns Hopkins Hospital revealed new information about his early operative experience with acromegaly. Although in 1912 Cushing published selective case studies regarding this work, a review of all his operations for acromegaly during his early years has

  13. The Negative Impact of Social and Mass Media on People's Behaviors as Reflected in Harvey Kahn's Girl Fight




    Keywords: media, mass media, social media, Facebook, Youtube, Socio- Psychology, behavior. Media were created to fulfill people's need of communication and information. The variety of media in this modern era makes people consider media as one of their primary need especially in their social lives. Mass media are used as tools to gain information and social media to communicate each other. This study aims to find the impact of media on people's behaviors in film entitled Girl Fight (201...

  14. Maailm võitleb sooja kliima tekitatud kahjuga / Scheherazade Daneshkhu, Fiona Harvey ; tõlk. Erik Aru

    Index Scriptorium Estoniae

    Daneshkhu, Scheherazade


    Kliimamuutuse majanduslik käsitlus on maha jäänud, kulu-tulu analüüsi kasutamine keskkonnakahju hindamisel on tekitanud probleeme, ÜRO on hakanud propageerima "looduslikku kapitali" keskkonnahüviste hindamiseks. Maailmapanga endise peaökonomisti Sir Gordon Browni juhtimisel valmib kliimamuutuse majandusmõjude ülevaade. Lisa: Emissioonikaubanduse raamistik; Korporatsioone sunnitakse tegudele

  15. "Adventures of Harvey" - Use, Acceptance of and Relationship Building with a Social Robot in a Domestic Environment (United States)

    Klamer, Tineke; Ben Allouch, Somaya; Heylen, Dirk

    The goal of this study was to improve our understanding about how older people use social robots in domestic environments and in particular whether and how they build relationships with these robots. Three participants interacted with the Nabaztag, a social robot, for a 10-day period in their own home environment. Some of our findings are (1) utilitarian-, hedonic-, and social factors are important when accepting social robots, (2) utilitarian-, hedonic- and social factors are important for building a relationship with the Nabaztag, (3) there is a relationship between name-calling and relationship building and (4) there is a relationship between using non-verbal- and verbal communication and relationship building.

  16. Total and inorganic arsenic in fish, seafood and seaweeds--exposure assessment. (United States)

    Mania, Monika; Rebeniak, Małgorzata; Szynal, Tomasz; Wojciechowska-Mazurek, Maria; Starska, Krystyna; Ledzion, Ewa; Postupolski, Jacek


    1.48 mg/kg (90th percentile: 2.42 mg/kg), whilst in seafood they were 0.87 mg/ kg (90th percentile: 2.23 mg/kg), for inorganic arsenic contamination at the 90th percentile was 0.043 mg/kg with most results however being less than 0.025 mg/kg. The highest inorganic arsenic levels were determined in the Hijiki algal species samples (102.7 mg/kg), whereas the other algal samples gave a mean inorganic concentration of 0.41 mg/kg (90th percentile 0.86 mg/kg). The estimated average adults exposure to inorganic arsenic in fish, seafood and seaweeds was less than 0.5% of the lowest BMDL0.5 dose. Only for the Hijiki seaweed it was at 4.9% BMDL0.5. Results demonstrate that dietary arsenic intake from fish, seafood and seaweed along with all their products do not constitute a significant health threat to consumers apart from the seaweed species Hizikia fusiformis in which over 40% of all the inorganic arsenic compounds were found.

  17. Roads and anthropology : Ethnography, infrastructures, (im)mobility [reprint of Dalakoglou, D, and Harvey, P.(Eds.) . Roads and anthropology: Ethnography, infrastructures, (im)mobility, London: Routledge

    NARCIS (Netherlands)

    Dalakoglou, D.; Harvey, P.


    Roads and the powerful sense of mobility that they promise carry us back and forth between the sweeping narratives of globalisation, and the specific, tangible materialities of particular times and places. Indeed, despite the fact that roads might, by comparison with the sparkling agility of virtual

  18. Mollusc diversity associated with the non-indigenous macroalga Asparagopsis armata Harvey, 1855 along the Atlantic coast of the Iberian Peninsula. (United States)

    Rubal, Marcos; Costa-Garcia, Ricardo; Besteiro, Celia; Sousa-Pinto, Isabel; Veiga, Puri


    The aims of this study were to explore mollusc assemblages associated with the non-indigenous macroalga Asparagopsis armata, to compare them with those on other macroalgae at the study region and to explore potential differences on mollusc assemblages between two regions in the Atlantic coast of the Iberian Peninsula, where A. armata is present. To achieve this, at each region, four intertidal shores were sampled. Twenty-nine mollusc species were reported and thus, A. armata harboured similar or higher diversity than other annual macroalgae in this area. When compared with perennial macroalgae, results depend on the species and studied area. Moreover, significant differences in structure of mollusc assemblages between the two studied regions were found. However, these were due to differences in the relative abundance of species rather than the presence of exclusive species at each region. Copyright © 2018 Elsevier Ltd. All rights reserved.

  19. Tropical Journal of Pharmaceutical Research - Vol 10, No 6 (2011)

    African Journals Online (AJOL)

    Ethyl Alcohol Extract of Hizikia fusiforme Induces Caspase-dependent Apoptosis in Human Leukemia U937 Cells by Generation of Reactive Oxygen Species · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. C-H Kang, S-H Kang, S-H Boo, S-Y Park, D-O Moon, G-Y ...

  20. Conservation systematics of the shield-backed trapdoor spiders of the nigrum-group (Mygalomorphae, Idiopidae, Idiosoma): integrative taxonomy reveals a diverse and threatened fauna from south-western Australia. (United States)

    Rix, Michael G; Huey, Joel A; Cooper, Steven J B; Austin, Andrew D; Harvey, Mark S


    The aganippine shield-backed trapdoor spiders of the monophyletic nigrum -group of Idiosoma Ausserer s. l. are revised, and 15 new species are described from Western Australia and the Eyre Peninsula of South Australia: I. arenaceum Rix & Harvey, sp. n. , I. corrugatum Rix & Harvey, sp. n. , I. clypeatum Rix & Harvey, sp. n. , I. dandaragan Rix & Harvey, sp. n. , I. formosum Rix & Harvey, sp. n. , I. gardneri Rix & Harvey, sp. n. , I. gutharuka Rix & Harvey, sp. n. , I. incomptum Rix & Harvey, sp. n. , I. intermedium Rix & Harvey, sp. n. , I. jarrah Rix & Harvey, sp. n. , I. kopejtkaorum Rix & Harvey, sp. n. , I. kwongan Rix & Harvey, sp. n. , I. mcclementsorum Rix & Harvey, sp. n. , I. mcnamarai Rix & Harvey, sp. n. , and I. schoknechtorum Rix & Harvey, sp. n. Two previously described species from south-western Western Australia, I. nigrum Main, 1952 and I. sigillatum (O. P.-Cambridge, 1870), are re-illustrated and re-diagnosed, and complementary molecular data for 14 species and seven genes are analysed with Bayesian methods. Members of the nigrum -group are of long-standing conservation significance, and I. nigrum is the only spider in Australia to be afforded threatened species status under both State and Commonwealth legislation. Two other species, I. formosum Rix & Harvey, sp. n. and I. kopejtkaorum Rix & Harvey, sp. n. , are also formally listed as Endangered under Western Australian State legislation. Here we significantly relimit I. nigrum to include only those populations from the central and central-western Wheatbelt bioregion, and further document the known diversity and conservation status of all known species.

  1. Conservation systematics of the shield-backed trapdoor spiders of the nigrum-group (Mygalomorphae, Idiopidae, Idiosoma: integrative taxonomy reveals a diverse and threatened fauna from south-western Australia

    Directory of Open Access Journals (Sweden)

    Michael G. Rix


    Full Text Available The aganippine shield-backed trapdoor spiders of the monophyletic nigrum-group of Idiosoma Ausserer s. l. are revised, and 15 new species are described from Western Australia and the Eyre Peninsula of South Australia: I. arenaceum Rix & Harvey, sp. n., I. corrugatum Rix & Harvey, sp. n., I. clypeatum Rix & Harvey, sp. n., I. dandaragan Rix & Harvey, sp. n., I. formosum Rix & Harvey, sp. n., I. gardneri Rix & Harvey, sp. n., I. gutharuka Rix & Harvey, sp. n., I. incomptum Rix & Harvey, sp. n., I. intermedium Rix & Harvey, sp. n., I. jarrah Rix & Harvey, sp. n., I. kopejtkaorum Rix & Harvey, sp. n., I. kwongan Rix & Harvey, sp. n., I. mcclementsorum Rix & Harvey, sp. n., I. mcnamarai Rix & Harvey, sp. n., and I. schoknechtorum Rix & Harvey, sp. n. Two previously described species from south-western Western Australia, I. nigrum Main, 1952 and I. sigillatum (O. P.-Cambridge, 1870, are re-illustrated and re-diagnosed, and complementary molecular data for 14 species and seven genes are analysed with Bayesian methods. Members of the nigrum-group are of long-standing conservation significance, and I. nigrum is the only spider in Australia to be afforded threatened species status under both State and Commonwealth legislation. Two other species, I. formosum Rix & Harvey, sp. n. and I. kopejtkaorum Rix & Harvey, sp. n., are also formally listed as Endangered under Western Australian State legislation. Here we significantly relimit I. nigrum to include only those populations from the central and central-western Wheatbelt bioregion, and further document the known diversity and conservation status of all known species.

  2. Conservation systematics of the shield-backed trapdoor spiders of the nigrum-group (Mygalomorphae, Idiopidae, Idiosoma): integrative taxonomy reveals a diverse and threatened fauna from south-western Australia (United States)

    Rix, Michael G.; Huey, Joel A.; Cooper, Steven J.B.; Austin, Andrew D.; Harvey, Mark S.


    Abstract The aganippine shield-backed trapdoor spiders of the monophyletic nigrum-group of Idiosoma Ausserer s. l. are revised, and 15 new species are described from Western Australia and the Eyre Peninsula of South Australia: I. arenaceum Rix & Harvey, sp. n., I. corrugatum Rix & Harvey, sp. n., I. clypeatum Rix & Harvey, sp. n., I. dandaragan Rix & Harvey, sp. n., I. formosum Rix & Harvey, sp. n., I. gardneri Rix & Harvey, sp. n., I. gutharuka Rix & Harvey, sp. n., I. incomptum Rix & Harvey, sp. n., I. intermedium Rix & Harvey, sp. n., I. jarrah Rix & Harvey, sp. n., I. kopejtkaorum Rix & Harvey, sp. n., I. kwongan Rix & Harvey, sp. n., I. mcclementsorum Rix & Harvey, sp. n., I. mcnamarai Rix & Harvey, sp. n., and I. schoknechtorum Rix & Harvey, sp. n. Two previously described species from south-western Western Australia, I. nigrum Main, 1952 and I. sigillatum (O. P.-Cambridge, 1870), are re-illustrated and re-diagnosed, and complementary molecular data for 14 species and seven genes are analysed with Bayesian methods. Members of the nigrum-group are of long-standing conservation significance, and I. nigrum is the only spider in Australia to be afforded threatened species status under both State and Commonwealth legislation. Two other species, I. formosum Rix & Harvey, sp. n. and I. kopejtkaorum Rix & Harvey, sp. n., are also formally listed as Endangered under Western Australian State legislation. Here we significantly relimit I. nigrum to include only those populations from the central and central-western Wheatbelt bioregion, and further document the known diversity and conservation status of all known species. PMID:29773959

  3. Health Information in Urdu (اردو) (United States)

    ... Hurricane Harvey - English PDF Keeping Children Safe after Hurricane Harvey - اردو (Urdu) PDF Federal Emergency Management Agency Prepare for Emergencies Now: Information for Older Americans - English PDF Prepare for Emergencies ...

  4. 77 FR 41909 - Safety Zone; Port of Dutch Harbor; Dutch Harbor, AK (United States)


    ... are as follows: NORDICA, FENNICA, AIVIQ, TOR VIKING, HARVEY EXPLORER, HARVEY SPIRIT, SISUAQ, AFFINITY..., Commander, Sector Anchorage. [FR Doc. 2012-17223 Filed 7-16-12; 8:45 am] BILLING CODE 9110-04-P ...

  5. Correction to: Extreme Precipitation, Public Health Emergencies, and Safe Drinking Water in the USA. (United States)

    Exum, Natalie G; Betanzo, Elin; Schwab, Kellogg J; Chen, Thomas Y J; Guikema, Seth; Harvey, David E


    Unfortunately, the original publication of this article contained mistakes. The publisher introduced an error after proofreading where the name of the co-author was mistakenly captured as "David P. E. Harvey". The correct name should be "David E. Harvey".

  6. Codon 61 mutations in the c-Harvey-ras gene in mouse skin tumors induced by 7,12-dimethylbenz[a]anthracene plus okadaic acid class tumor promoters. (United States)

    Fujiki, H; Suganuma, M; Yoshizawa, S; Kanazawa, H; Sugimura, T; Manam, S; Kahn, S M; Jiang, W; Hoshina, S; Weinstein, I B


    Three okadaic acid class tumor promoters, okadaic acid, dinophysistoxin-1, and calyculin A, have potent tumor-promoting activity in two-stage carcinogenesis experiments on mouse skin. DNA isolated from tumors induced by 7,12-dimethylbenz[a]anthracene (DMBA) and each of these tumor promoters revealed the same mutation at the second nucleotide of codon 61 (CAA----CTA) in the c-Ha-ras gene, determined by the polymerase chain reaction procedure and DNA sequencing. Three potent 12-O-tetradecanoylphorbol-13-acetate (TPA)-type tumor promoters, TPA, teleocidin, and aplysiatoxin, showed the same effects. These results provide strong evidence that this mutation in the c-Ha-ras gene is due to a direct effect of DMBA rather than a selective effect of specific tumor promoters.

  7. Hepatoprotective efficiency of methanol extract of red algae against chromium-induced oxidative damage in Wistar rats

    Directory of Open Access Journals (Sweden)

    Murugesan Subbiah


    Full Text Available Objective: To investigate the hepatoprotective activity of red algae Portieria hornemannii (Lyngbye Silva (P. hornemannii and Spyridia fusiformis Boergesen (S. fusiformis by using the chromium treated rat liver as the animal model. Methods: The extract of red algae at a dosage of 0.200 g/kg of whole body weight was orally administrated to Cr (VI intoxicated rats for 28 consecutive days. The effect of drug in rats was evaluated by comparing the degree of the production of enzymes responsible for antioxidant activity such lipid peroxidase, superoxide dismutase, catalase and reduced glutathione with Cr (VI analogs in the absence of any secondary treatment. The overall damage of liver was detected by measuring serum enzymes such as aspartate amino transferase and alanine aminotransferase activities which released into the blood from the damaged cells. Results: It was observed that these enzyme levels were noticed in the animals treated with methanol extracts of red algae (200 mg/kg through preventing the leakage of the above enzymes into the blood. The hepatoprotection obtained using LIV 52 (standard reference drug appeared relatively higher. The antihepatotoxic potential of red algae P. hornemannii and S. fusiformis might be due to their antioxidative and membrane stabilizing activities. Conclusions: Our results indicated that the extract of P. hornemannii and S. fusiformis obtained from methanol could be a promising hepatoprotective agent against chromium (VI-induced liver damage.

  8. Assessment of oak wilt threat to habitat of the golden-cheeked warbler, an endangered species, in central Texas (United States)

    David N. Appel; Kim S. Camilli


    A major epidemic of oak wilt, caused by Ceratocystis fagacearum (Bretz) Hunt, has been killing trees in Central Texas for at least 40 years. This has created large and expanding canopy gaps in the vast, homogenous live oak woodlands (Quercus fusiformis Small) in the Edwards Plateau region of Texas. The changes in stand...

  9. New record and re-description of a gall-forming aphid (Hemiptera: Aphididae, commonly confused in the north of South America, associated with an ant (Hymenoptera: Formicidae

    Directory of Open Access Journals (Sweden)

    Ronald Simbaqueba-Cortés


    Full Text Available The gall-forming aphid Tetraneura fusiformis is recorded for the first time for Northern South America. Its identity is clarified, and descriptions of this species and that of T. nigriabdominalis, with which it is commonly confused, are offered. The association of this sap sucking insect with the ant Linepithema angulatum (Hymenoptera: Formicidae is recorded for the first time as well

  10. The Wonderlic Personnel Test and Elementary Cognitive Tasks as Predictors of Religious Sectarianism, Scriptural Acceptance and Religious Questioning (United States)

    Bertsch, Sharon; Pesta, Bryan J.


    Lynn, Harvey and Nyborg [Lynn, R., Harvey, J., & Nyborg, H. (in press). Average intelligence predicts atheism rates across 137 nations. "Doi:10.1016/j.intell.2008.03.004".] discovered that average intelligence (IQ) co-varies with national atheism rates. Extending this work, we investigated relationships among individual IQ scores,…

  11. Multiple unit root tests under uncertainty over the initial condition : some powerful modifications

    NARCIS (Netherlands)

    Hanck, C.

    We modify the union-of-rejection unit root test of Harvey et al. "Unit Root Testing in Practice: Dealing with Uncertainty over the Trend and Initial Condition" (Harvey, Econom Theory 25:587-636, 2009). This test rejects if either of two different unit root tests rejects but controls the inherent

  12. Laser Focus (United States)

    Stuart, Reginald


    Hampton University President William Harvey's initial readings of proton therapy for cancer sparked his interest. Within a few months, Dr. Harvey was assigning widely respected Hampton nuclear physicist Dr. Cynthia Keppel to do more exploration. Today, the new $225 million Hampton University Proton Therapy Institute, one of eight therapy sites in…

  13. Evaluation of the National Register Eligibility of the Inner Harbor Navigation Canal Lock in Orleans Parish, Louisiana. (United States)


    traf fic. A town eventually was founded along the banks of this fledgling canal by Destrehan; it was named " Cosmopolite City." The property was passed...granddaughter) who 199 married a Virginian, John Joseph Harvey, in 1845 (Waldemar S. Nelson & Co., Inc. 1985). The settlement of Cosmopolite was renamed "Harvey

  14. Germania Quo Vadis?: Dynamics of Change in German Security Policy (United States)


    Keohane, Robert O., Michael Brecher and Frank Harveys, eds. Institutional Theory in international Relations. In: Millennial Reflections on International...Hegemony: Cooperation and Discord in the World Political Economy, (Princeton University Press, 1984), pp. 78-109; Robert O. Keohane, “ Institutional ... Theory in international Relations,” in Michael Brecher and Frank Harveys, eds., Millennial Reflections on International Studies (University of Michigan

  15. Turbidity, SOLAR RADIATION - ATMOSPHERIC and other data from MEIRING NAUDE, FRAAY R/K and FRANK HARVEY R/K in the Indian Ocean and South Atlantic Ocean from 1966-01-19 to 1979-03-23 (NODC Accession 8200037) (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set consists of Bathythermograph data extracted from a tape of physical oceanographic data submitted by the National Research Institute of Oceanography...

  16. Estimation of γ irradiation induced genetic damage by Ames test

    International Nuclear Information System (INIS)

    Hosoda, Eiko


    Mutation by 60 Co γ irradiation was studied in five different histidine-requiring auxotrophs of Salmonella typhimurium. The strains TA98 (sensitive to frameshift) and TA100 (sensitive to base-pair substitution) were irradiated (10-84 Gy and 45-317 Gy, respectively) and revertants were counted. TA98 exhibited radiation-induced revertants, 2.8 fold of spontaneous revertants, although no significant increase was detected in TA100. Then, three other frameshift-sensitive strains TA1537, TA1538 and TA94 were irradiated in a dose of 61-167 Gy. Only in TA94, revertants increased 3.5 fold. Since spontaneous revertants are known to be independent of cell density, a decrease of bacterial number by γ irradiation was confirmed not to affect the induced revertants by dilution test. Thus the standard Ames Salmonella assay identified γ irradiation was confirmed not to affect the induced revertants by dilution test. Thus the standard Ames Salmonella assay identified γ irradiation as a mutagenetic agent. The mutagenicity of dinitropyrene, a mutagen widely existing in food, and dismutagenicity of boiling water insoluble fraction of Hizikia fusiforme, edible marine alga, were tested on γ induced revertant formation in TA98 and TA94. Dinitropyrene synergistically increased γ induced revertants and Hizikia insoluble fraction reduced the synergistic effect of dinitropyrene dependently on the concentration. (author)

  17. Heavy metals in edible seaweeds commercialised for human consumption (United States)

    Besada, Victoria; Andrade, José Manuel; Schultze, Fernando; González, Juan José


    Though seaweed consumption is growing steadily across Europe, relatively few studies have reported on the quantities of heavy metals they contain and/or their potential effects on the population's health. This study focuses on the first topic and analyses the concentrations of six typical heavy metals (Cd, Pb, Hg, Cu, Zn, total As and inorganic As) in 52 samples from 11 algae-based products commercialised in Spain for direct human consumption ( Gelidium spp.; Eisenia bicyclis; Himanthalia elongata; Hizikia fusiforme; Laminaria spp.; Ulva rigida; Chondrus crispus; Porphyra umbilicales and Undaria pinnatifida). Samples were ground, homogenised and quantified by atomic absorption spectrometry (Cu and Zn by flame AAS; Cd, Pb and total As by electrothermal AAS; total mercury by the cold vapour technique; and inorganic As by flame-hydride generation). Accuracy was assessed by participation in periodic QUASIMEME (Quality Assurance of Information in Marine Environmental Monitoring in Europe) and IAEA (International Atomic Energy Agency) intercalibration exercises. To detect any objective differences existing between the seaweeds' metal concentrations, univariate and multivariate studies (principal component analysis, cluster analysis and linear discriminant analysis) were performed. It is concluded that the Hizikia fusiforme samples contained the highest values of total and inorganic As and that most Cd concentrations exceeded the French Legislation. The two harvesting areas (Atlantic and Pacific oceans) were differentiated using both univariate studies (for Cu, total As, Hg and Zn) and a multivariate discriminant function (which includes Zn, Cu and Pb).

  18. Potential of solid state fermentation for production of ergot alkaloids


    Trejo Hernandez, M.R.; Raimbault, Maurice; Roussos, Sevastianos; Lonsane, B.K.


    Production of total ergot alkaloids by #Claviceps fusiformis$ in solid state fermentation was 3.9 times higher compared to that in submerged fermentation. Production was equal in the case of #Claviceps purpurea$ but the spectra of alkaloids were advantageous with the use of solid state fermentation. The data establish potential of solid state fermentation which was not explored earlier for production of ergot alkaloids. (Résumé d'auteur)

  19. A new species of Nemoura (Plecoptera: Nemouridae) from Jiangsu Province, China, with new illustrations for Nemoura nankinensis Wu. (United States)

    Chen, Zhi-Teng; DU, Yu-Zhou


    A new species of Nemoura (Plecoptera: Nemouridae), N. fusiformis sp. nov. from Jiangsu Province, China, is described and illustrated. The new species is characterized by a strongly sclerotized large hook formed by outer margin of the outer lobe of the paraproct and by the outer sclerite of cercus with a sub-triangular medial process. The new species is compared with similar taxa. Additionally, supplementary illustrations for N. nankinensis Wu, 1926 are also provided.

  20. Genetic Diversity of Nostoc Symbionts Endophytically Associated with Two Bryophyte Species


    Costa, José-Luis; Paulsrud, Per; Rikkinen, Jouko; Lindblad, Peter


    The diversity of the endophytic Nostoc symbionts of two thalloid bryophytes, the hornwort Anthoceros fusiformis and the liverwort Blasia pusilla, was examined using the tRNALeu (UAA) intron sequence as a marker. The results confirmed that many different Nostoc strains are involved in both associations under natural conditions in the field. The level of Nostoc diversity within individual bryophyte thalli varied, but single DNA fragments were consistently amplified from individual symbiotic col...

  1. The placenta of the salp (Tunicata: Thaliacea). (United States)

    Bone, Q; Pulsford, A L; Amoroso, E C


    The morphology of the mature 'placenta' of the pelagic tunicate Salpa fusiformis is described, and it is shown that two syncytial layers, intimately connected by interdigitating microvilli, separate maternal and embryonic circulations. The central placental layer facing the maternal circulation is bordered by membrane infoldings; the cortical layer facing the embryonic circulation is bordered by extensively branching microvilli. Both layers are of maternal origin, although embryonic leucocytes pass into, and add to, the cortical layer.

  2. The Sarcocystis-cyst containing beef and pork as the sources of natural intestinal sarcocystosis in Thai people. (United States)

    Bunyaratvej, Sukhum; Unpunyo, Piyapong; Pongtippan, Atcharaporn


    Human intestinal sarcocystosis is a zoonotic disease caused by two coccidians, i.e. Sarcocystis fusiformis (syn. S. bovihominis, S. hominis) due to consumption of raw infected beef and Sarcocystis meischeriana (syn. S. suihominis) due to consumption of infected raw pork. In 1987, survey of the macroscopic S. fusiformis cysts in market beef mainly from old water buffalos aged more than 15 years were commonly observed in Bangkok. In 2005, the macroscopic cyst was no longer seen in beef of cattle and water buffalo aged less than three years. The epidemiological investigation of Sarcocystis spp. infected meat in Bangkok and Lampang. Samples for each of the tongue and beef of cattle and water buffalo, pork from Bangkok markets and pork of domestic swine from some remote villages in various subprovinces (Ampurs) in Lampang were obtained for microscopic examination by H and E and selectively by PAS staining. The microscopic S. fusiformis cysts were seen in all five specimens of tongues and ten specimens of muscles of cattle and water buffalo obtained from fresh-food markets in Bangkok. Ten samples of pork from Bangkok markets revealed no coccidian infection. The microscopic S. meischeriana cysts were seen in three specimens of swine muscles collected from two subprovinces in Lampang. The present merozoites in coccidian cysts retrieved from beef and pork are similar to those previously observed in human intestine. This may histologically indicate an invasive sarcocystosis by both species leading to a condition presently known as chronic inflammation of undetermined etiology in man.

  3. Comparative cytogenetic analysis of two grasshopper species of the tribe Abracrini (Ommatolampinae, Acrididae

    Directory of Open Access Journals (Sweden)

    Marília de França Rocha


    Full Text Available The grasshopper species Orthoscapheus rufipes and Eujivarus fusiformis were analyzed using several cytogenetic techniques. The karyotype of O. rufipes, described here for the first time, had a diploid number of 2n = 23, whereas E. fusiformis had a karyotype with 2n = 21. The two species showed the same mechanism of sex determination (XO type but differed in chromosome morphology. Pericentromeric blocks of constitutive heterochromatin (CH were detected in the chromosome complement of both species. CMA3/DA/DAPI staining revealed CMA3-positive blocks in CH regions in four autosomal bivalents of O. rufipes and in two of E. fusiformis. The location of active NORs differed between the two species, occurring in bivalents M6 and S9 of O. rufipes and M6 and M7 of E. fusiformsi. The rDNA sites revealed by FISH coincided with the number and position of the active NORs detected by AgNO3 staining. The variability in chromosomal markers accounted for the karyotype differentiation observed in the tribe Abracrini.

  4. Distribution and growth of salps in a Kuroshio warm-core ring during summer 1987 (United States)

    Tsuda, Atsushi; Nemoto, Takahisa


    A salp bloom, accounting for 47% of the macrozooplankton wet weight in the upper 200 m, was observed in a Kuroshio warm-core ring and adjacent areas during September 1987. Although salps had wide distribution and high biomass in the ring and adjacent southern areas, they did not occur north of the northern ring front. Thalia democratica dominated in these areas and Salpa fusiformis was abundant at some stations. Salps were distributed only in the upper 200 m of the water column. The maximum abundance of T. democratica was in the surface mixed layer, 0-20 m. S. fusiformis was most abundant from 50 to 75 m. Diel vertical migration was observed only for solitary zooids of S. fusiformis. All other salps appeared only on the surface. The growth of aggregate zooids of T. democratica was investigated with the time-series sampling during a 28-h sampling period following a drifter. Several cohorts were identified in the length-frequency distributions. The average relative growth rate in length was 8.0% per hour. Carbon consumption by the T. democratica population, calculated from the derived growth rate, suggested that T. democratica was a major consumer of the primary production in the ring.

  5. Assessment and Comparison of Electrokinetic and Electrokinetic-bioremediation Techniques for Mercury Contaminated Soil (United States)

    Azhar, A. T. S.; Nabila, A. T. A.; Nurshuhaila, M. S.; Zaidi, E.; Azim, M. A. M.; Farhana, S. M. S.


    Landfills are major sources of contamination due to the presence of harmful bacteria and heavy metals. Electrokinetic-Bioremediation (Ek-Bio) is one of the techniques that can be conducted to remediate contaminated soil. Therefore, the most prominent bacteria from landfill soil will be isolated to determine their optimal conditions for culture and growth. The degradation rate and the effectiveness of selected local bacteria were used to reduce soil contamination. Hence, this enhances microbiological activities to degrade contaminants in soil and reduce the content of heavy metals. The aim of this study is to investigate the ability of isolated bacteria (Lysinibacillus fusiformis) to remove mercury in landfill soil. 5 kg of landfill soil was mixed with deionized water to make it into slurry condition for the purpose of electrokinetic and bioremediation. This remediation technique was conducted for 7 days by using 50 V/m of electrical gradient and Lysinibacillus fusiformis bacteria was applied at the anode reservoir. The slurry landfill soil was located at the middle of the reservoir while distilled water was placed at the cathode of reservoir. After undergoing treatment for 7 days, the mercury analyzer showed that there was a significant reduction of approximately up to 78 % of mercury concentration for the landfill soil. From the results, it is proven that electrokinetic bioremediation technique is able to remove mercury within in a short period of time. Thus, a combination of Lysinibacillus fusiformis and electrokinetic technique has the potential to remove mercury from contaminated soil in Malaysia.

  6. Hemingway oli KGB, filmistaar Errol Flynn natside agent? / Tõnis Erilaid

    Index Scriptorium Estoniae

    Erilaid, Tõnis, 1943-


    John Earl Haynes, Harvey Klehr ja Alexander Vassiliev väidavad oma raamatus "Spies : The Rise and Fall of the KGB in America", et Ernest Hemingway oli 1940ndail aastail KGB ning Errol Flynn 1930ndatel aastatel natside agent

  7. Pop / Lauri Tikerpe

    Index Scriptorium Estoniae

    Tikerpe, Lauri


    Heliplaatidest: TM Juke "Forward", Miljoonasade "Kasvukipuja 20 vuotta", JJ Cale & Eric Clapton "The Road to Escondido", Xiu Xiu "The Air Force", Leo Abrahams "Scene Memory", Michael Brook "RockPaperScissors", PJ Harvey "The Peel Sessions 1991-2004"

  8. Intellectual Liabilities: Lessons from The Decline and Fall of the Roman Empire

    NARCIS (Netherlands)

    Christiaan Stam


    Purpose: Intellectual capital theory and practice predominantly focus on measuring and managing intangible assets. However, if we want to balance the intellectual capital books (Harvey and Lusch, 1999), we should recognize both intellectual assets and intellectual liabilities (Caddy, 2000).

  9. Antidepressant Withdrawal (United States)

    ... Accessed Dec. 11, 2015. Definition of addiction. American Society of Addiction Medicine. Accessed Dec. 11, 2015. Harvey BH, ...

  10. Comparison of the acute effects of Tulbaghia violacea William Henry ...

    African Journals Online (AJOL)

    William Henry Harvey (Alliaceae) on blood pressure and heart rate of ... (WKY), and compare the results obtained with those for adult spontaneously hypertensive rats (SHR). Methods: T. ... have similar secondary metabolites and biological ...

  11. History, Medicine, and Culture: History for Science Students. (United States)

    Balog, C. Edward


    Describes college level history course entitled "Healers and Persons" for undergraduate medicine students. Topics include Greek medicine and Hippocrates, Galen of Pergamum, Islamic and Roman culture, medieval medicine, the Renaissance, Harvey, Pasteur, Lister, and Mendel. (KC)

  12. Research Article Special Issue

    African Journals Online (AJOL)



    Feb 24, 2018 ... This is concordance with cognitive theory (Fosnot &. Perry, 1996) ..... The Psychology of Effective Learning and Teaching. Cheltenham: Nelson ... Harvey Goldstein's objections to Rasch measurement: A response from Linacre ...

  13. Plaat

    Index Scriptorium Estoniae


    Heliplaadid kauplustest Lasering: Diskreetse Mango Trio "Prigadi-pragadi", P J Harvey "The Peel Sessions 1991-2004", Tom Waits "Orphans" (3 CD-d), Zahir "Green means go", Yusuf "An Another Cup", Norah Jones "Not Too Late"

  14. Forty Years of Salmonella enterica Dublin in People

    Centers for Disease Control (CDC) Podcasts


    Dr. Reid Harvey, a CDC epidemiologist, discusses Salmonella enterica Dublin in People.  Created: 10/5/2017 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 10/5/2017.

  15. Fifteen years experience: Egyptian metabolic lab

    African Journals Online (AJOL)

    Ekram M. Fateen


    Aug 20, 2014 ... defective enzymes or transport proteins which results in a block of the metabolic pathway and accumulation ... The detection of metabolic disorder is done ..... [42] Wood TC, Harvey K, Beck M, Burin MG, Chien YH, Church HJ,.

  16. ISSN 2073-9990 East Cent. Afr. J. surg

    African Journals Online (AJOL)

    Hp 630 Dual Core

    self-reporting to establish the extent and factors contributing to the practice. .... Butterfield K. D., Trevino L. K. Academic Dishonesty in Graduate Business Programs: ... Wiese D. S., Harvey M. G. An Investigation Into the Dimensions of Unethical.

  17. Kui Thatcher kiidab ja Pinochet teeb pai / Erik Terk

    Index Scriptorium Estoniae

    Terk, Erik


    Thatcheri ja Reagani nimedega seostatav neoliberaalne revolutsioon on saanud piisavalt vanaks, et kujundada pilt, mis toimus ja kuhu see meid viib. See ongi uue neoliberalismiraamatu David Harvey. A Brief History of Neoliberalism aineks

  18. 78 FR 33282 - Endangered and Threatened Wildlife and Plants; Revision of Critical Habitat for Salt Creek Tiger... (United States)


    ... negative impacts associated with sediment transport and freshwater dilution of salinity. Without adjacent... indefinitely (Harvey et al. 2007, p. 750). Subsurface geology, geomorphic features (including manmade features... management such as research, census, law enforcement, habitat acquisition and maintenance, propagation, live...

  19. South African Medical Journal - Vol 32, No 3 (1958)

    African Journals Online (AJOL)

    South African Medical Journal. ... Sodium and potassium balance · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT ... The life and work of William Harvey · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT

  20. Brain Aneurysm: Early Detection and Screening (United States)

    ... who has two or more relatives (e.g. mother, father, brother, sister, aunt, uncle, grandparent, cousins) with ... Harvey Memorial Chair of Research Kristen’s Legacy of Love Chair of Research TeamCindy Alcatraz Chair of Research ...

  1. Predicting bias in perceived position using attention field models

    NARCIS (Netherlands)

    Klein, Barrie P; Paffen, Chris L E; Pas, Susan F Te; Dumoulin, Serge O


    Attention is the mechanism through which we select relevant information from our visual environment. We have recently demonstrated that attention attracts receptive fields across the visual hierarchy (Klein, Harvey, & Dumoulin, 2014). We captured this receptive field attraction using an attention

  2. A New Approach for Assessing the Needs of Service Members and Their Families (United States)


    their families. Nothing that I do as the Secretary of the Army is more important than this [emphasis added] ( Harvey , 2009). According to the address the physical, material, mental and spiritual needs of each member of the Total Army Family [emphasis added] ( Harvey and Schoomaker, 2006...Laurie Weinstein and Christie C. White, eds., Wives and Warriors: Women and the Military in the United States and Canada, Westport, Conn.: Greenwood

  3. Universal Alienation and the Real Subsumption of Daily Life under Capital: A Response to Hardt and Negri

    Directory of Open Access Journals (Sweden)

    David Harvey


    Full Text Available This contribution is part of a debate between Michael Hardt/Toni Negri and David Harvey on the occasion of Marx’s bicentenary (May 5, 2018. The discussion focuses on the question of what capitalism looks like today and how it can best be challenged. In this article, David Harvey responds to Hardt and Negri’s previous debate-contributions.

  4. Dos especies nuevas del género Boletus (Boletales: Agaricomycetes) en México


    García-Jiménez, Jesús; Singer, Rolf; Estrada, Eduardo; Garza-Ocañas, Fortunato; Valenzuela, Ricardo


    Se describen e ilustran 2 especies nuevas para la ciencia del género Boletus encontradas en bosques de Quercus en los estados de Nuevo León y Tamaulipas, México: Boletus paulae y B. singeri. B. paulae pertenece a la secc. Luridi y B. singeri a la secc. Subpruinosi del género Boletus. Ambas especies son consideradas micorrizógenas, la primera con Quercus fusiformis y Q. polymorpha y la segunda con Q. canbyi. Los especímenes están depositados en los Herbarios ITCV y UNL con duplicados en F y EN...

  5. Linear systems formulation of scattering theory for rough surfaces with arbitrary incident and scattering angles. (United States)

    Krywonos, Andrey; Harvey, James E; Choi, Narak


    Scattering effects from microtopographic surface roughness are merely nonparaxial diffraction phenomena resulting from random phase variations in the reflected or transmitted wavefront. Rayleigh-Rice, Beckmann-Kirchhoff. or Harvey-Shack surface scatter theories are commonly used to predict surface scatter effects. Smooth-surface and/or paraxial approximations have severely limited the range of applicability of each of the above theoretical treatments. A recent linear systems formulation of nonparaxial scalar diffraction theory applied to surface scatter phenomena resulted first in an empirically modified Beckmann-Kirchhoff surface scatter model, then a generalized Harvey-Shack theory that produces accurate results for rougher surfaces than the Rayleigh-Rice theory and for larger incident and scattered angles than the classical Beckmann-Kirchhoff and the original Harvey-Shack theories. These new developments simplify the analysis and understanding of nonintuitive scattering behavior from rough surfaces illuminated at arbitrary incident angles.

  6. An observational and modeling study of the August 2017 Florida climate extreme event. (United States)

    Konduru, R.; Singh, V.; Routray, A.


    A special report on the climate extremes by the Intergovernmental Panel on Climate Change (IPCC) elucidates that the sole cause of disasters is due to the exposure and vulnerability of the human and natural system to the climate extremes. The cause of such a climate extreme could be anthropogenic or non-anthropogenic. Therefore, it is challenging to discern the critical factor of influence for a particular climate extreme. Such kind of perceptive study with reasonable confidence on climate extreme events is possible only if there exist any past case studies. A similar rarest climate extreme problem encountered in the case of Houston floods and extreme rainfall over Florida in August 2017. A continuum of hurricanes like Harvey and Irma targeted the Florida region and caused catastrophe. Due to the rarity of August 2017 Florida climate extreme event, it requires the in-depth study on this case. To understand the multi-faceted nature of the event, a study on the development of the Harvey hurricane and its progression and dynamics is significant. Current article focus on the observational and modeling study on the Harvey hurricane. A global model named as NCUM (The global UK Met office Unified Model (UM) operational at National Center for Medium Range Weather Forecasting, India, was utilized to simulate the Harvey hurricane. The simulated rainfall and wind fields were compared with the observational datasets like Tropical Rainfall Measuring Mission rainfall datasets and Era-Interim wind fields. The National Centre for Environmental Prediction (NCEP) automated tracking system was utilized to track the Harvey hurricane, and the tracks were analyzed statistically for different forecasts concerning the Harvey hurricane track of Joint Typhon Warning Centre. Further, the current study will be continued to investigate the atmospheric processes involved in the August 2017 Florida climate extreme event.

  7. Enterprise Requirements and Acquisition Model (ERAM) Analysis and Extension (United States)


    lean concept into the earlier phases of acquisition (e.g., before the Milestone C [MS-C] review [Labedz, Initiative, & Harvey , 2006; Moorman, 2005...47 - k~î~ä=mçëíÖê~Çì~íÉ=pÅÜççä= Labedz, C. S., Jr., Initiative, L. A., & Harvey , R. K. (2006). Letterkenny Army Depot: Finance innovations support...Chandler, 2006). The launch manifest process is outlined in AFSPCI10-1213, Launch Scheduling and Forecasting Procedures ( Weinstein , 2012) and AFSPC

  8. Cyclin D1-AR Crosstalk: Potential Implications for Therapeutic Response in Prostate Cancer (United States)


    metastatic androgen-independent prostate cancer. Clin Cancer Res 2004; 10: 924–928. 12 Toogood PL, Harvey PJ, Repine JT, Sheehan DJ, VanderWel SN, Zhou H Discovery of a potent and selective inhibitor of cyclin-dependent kinase 4/6. J Med Chem 2005; 48: 2388–2406. 13 Fry DW, Harvey PJ, Keller PR...cyclin- dependent kinase 6 specific inhibition. J Med Chem 2006; 49: 3826–3831. 58 Lim JT, Mansukhani M, Weinstein IB. Cyclin-dependent kinase 6

  9. The burdens-benefits ratio consideration for medical administration of nutrition and hydration to persons in the persistent vegetative state. (United States)

    Harvey, John C


    In this article, Harvey notes the initial confusion about the statement made by the pope concerning artificial nutrition and hydration on patients suffering persistent vegetative states (PVS) due to misunderstanding through the translation of the pope's words. He clarifies and assesses what was meant by the statement. He also discusses the problems of terminology concerned with the subject of PVS. Harvey concludes that the papal allocution was in line with traditional Catholic bioethics, and that while maintaining the life of a patient is favorable, in particular cases this presumption wanes when it is clear that this treatment modality would be futile or very burdensome.

  10. Presencia simultánea de las fases tetraspororangial y carposporangial sobre el mismo talo en Polysiphonia scopulorum var. villum (Rhodomelaceae, Rhodophyta Mixed phases tetrasporangial and carposporangial on the same thallus in Polysiphonia scopulorum var. villum (Rhodomelaceae, Rhodophyta

    Directory of Open Access Journals (Sweden)

    Raúl Aguilar-Rosas


    Full Text Available Se describe por primera vez la presencia simultánea de las fases tetrasporangial (tetrasporangios y carposporangial (cistocarpos sobre el mismo talo en Polysiphonia scopulorum W.H. Harvey var. villum (J. Agardh Hollenberg. El material fue recolectado en la zona intermareal rocosa de Playa Saldamando, Baja California, México, durante octubre de 2004.Mixed tetrasporangial (tetrasporangia and carposporangial (cistocarps phases on the same thallus in Polysiphonia scopulorum W.H. Harvey var. villum (J. Agardh Hollenberg (Rhodomelaceae, Rhodophyta are described for the first time. The material was collected on Octuber, 2004 in the intertidal zone in Playa Saldamando, Baja California, Mexico.

  11. Cholinesterase Structure: Identification of Mechanisms and Residues Involved in Organophosphate Inhibition and Enzyme Reactivation (United States)


    analysed by combinatorial mutations and enantiomeric phosphonates Zrinka KOVARIK*t1, Zoran RADI6*, Harvey A. BERMANf, Vera SIMEON-RUDOLFt, Elsa REINERt and...Harvey A. Berman,1’ Vera Simeon-Rudolf,§ Elsa Reiner,§ and Palmer Taylbr*4’ Department qf Pharmacology, Univeitirv ofCalffornia at San Diego, La...and refinement statistics A N TZ2PA6 isomer complexed to mAChE anti1 synl Data collection* Beamline (European Synchrotron ID14-EH1 ID14-EH2 Radiation

  12. Infection levels and seasonality of monogeneans in the largemouth bass Micropterus salmoides (Perciformes: Centrarchidae) from Nuevo León, Mexico. (United States)

    Galaviz-Silva, L; Iruegas-Buentello, F J; Escobar-González, B; Molina-Garza, Z J


    Largemouth bass, Micropterus salmoides, is a native fish species with special importance for sport fishing competitions in Nuevo León, Mexico. However, no study has investigated the parasitic fauna of M. salmoides, and no reports are available on monogenean parasites in this fish species. Therefore, we described the monogenean parasites of M. salmoides and the effects of season and fish condition factor in five reservoirs: La Boca (LB), El Cuchillo-Solidaridad (CS), Sombreretillo (S), Laguna Salinillas (LS) and Cerro Prieto (CP). The monogeneans infecting M. salmoides were Clavunculus unguis and Acolpenteron ureteroecetes (collected in all localities), as well as Syncleithrium fusiformis, Haplocleidus furcatus, Clavunculus bifurcatus and Urocleidus principalis (CS). Clavunculus unguis had the highest prevalence in fish from all reservoirs. The abundance of monogeneans was generally greater in late spring to autumn than in winter. Although season was not correlated with abundance (r s = 0.0934, P <  0.0154), the months of highest temperature (from May to September) were positively correlated with parasite abundance. A significant association was observed between fish condition factor and the presence of monogeneans (P <  0.05), except for A. ureteroecetes. Our findings include five new geographic records for C. unguis, S. fusiformis, H. furcatus and C. bifurcatus.

  13. Salp distribution and grazing in a saline intrusion off NW Spain (United States)

    Huskin, Iñaki; Elices, Ma. José; Anadón, Ricardo


    Salp distribution and grazing were studied along three transects (19 stations) and a Lagrangian phase (7 stations) off Galician coast (NW Spain) in November 1999 during GIGOVI 99 cruise. A poleward saline intrusion was detected at the shelf-break, reaching salinity values above 35.90 u.p.s. at 100-m depth. The salp community was dominated by Salpa fusiformis, although Cyclosalpa bakeri, Thalia democratica and Iasis zonaria were also found in the study area. Total salp abundance ranged from 4 to 4500 ind m -2, representing biomass values between 0.2 and 2750 mg C m -2. Maximum densities were located in the frontal area separating the saline body from coastal waters. S. fusiformis pigment ingestion was estimated using the gut fluorescence method. Gut contents were linearly related to salp body size. Total pigment ingestion ranged from 0.001 to 15 mg Chl- a m -2 d -1, with maximum values at the coastal edge of the saline body. Estimated ingestion translates into an average daily grazing impact of 7% of chlorophyll standing stock, ranging from <1% to 77%.

  14. Phylogeny of marine Bacillus isolates from the Gulf of Mexico (United States)

    Siefert, J. L.; Larios-Sanz, M.; Nakamura, L. K.; Slepecky, R. A.; Paul, J. H.; Moore, E. R.; Fox, G. E.; Jurtshuk, P. Jr


    The phylogeny of 11 pigmented, aerobic, spore-forming isolates from marine sources was studied. Forty-two biochemical characteristics were examined, and a 16S rDNA sequence was obtained for each isolate. In a phylogenetic tree based on 16S sequencing, four isolates (NRRL B-14850, NRRL B-14904, NRRL B-14907, and NRRL B-14908) clustered with B. subtilis and related organisms; NRRL B-14907 was closely related to B. amyloliquefaciens. NRRL B-14907 and NRRL B-14908 were phenotypically similar to B. amyloliquefaciens and B. pumilus, respectively. Three strains (NRRL B-14906, NRRL B-14910, and NRRL B-14911) clustered in a clade that included B. firmus, B. lentus, and B. megaterium. NRRL B-14910 was closely related phenotypically and phylogenetically to B. megaterium. NRRL B-14905 clustered with the mesophilic round spore-producing species, B. fusiformis and B. sphaericus; the isolate was more closely related to B. fusiformis. NRRL B-14905 displayed characteristics typical of the B. sphaericus-like organisms. NRRL B-14909 and NRRL B-14912 clustered with the Paenibacillus species and displayed characteristics typical of the genus. Only NRRL B-14851, an unusually thin rod that forms very small spores, may represent a new Bacillus species.

  15. Factor Structure of the Acute Stress Disorder Scale in a Sample of Hurricane Katrina Evacuees (United States)

    Edmondson, Donald; Mills, Mary Alice; Park, Crystal L.


    Acute stress disorder (ASD) is a poorly understood and controversial diagnosis (A. G. Harvey & R. A. Bryant, 2002). The present study used confirmatory factor analysis (CFA) to test the factor structure of the most widely used self-report measure of ASD, the Acute Stress Disorder Scale (R. A. Bryant, M. L. Moulds, & R. M. Guthrie, 2000),…

  16. Evaluation of economic traits in progenies of Nigerian heavy ...

    African Journals Online (AJOL)

    Genetic evaluation of egg production and biometrical traits of the first filial generation of the Nigerian heavy ecotype chicken was carried out. Heritability and genetic correlations between the traits were estimated using the mixed model least squares and maximum likelihood computer programme of Harvey. Results show an ...

  17. Testing for a Common Volatility Process and Information Spillovers in Bivariate Financial Time Series Models

    NARCIS (Netherlands)

    J. Chen (Jinghui); M. Kobayashi (Masahito); M.J. McAleer (Michael)


    textabstractThe paper considers the problem as to whether financial returns have a common volatility process in the framework of stochastic volatility models that were suggested by Harvey et al. (1994). We propose a stochastic volatility version of the ARCH test proposed by Engle and Susmel (1993),

  18. Moodne materjal / Liina Jänes

    Index Scriptorium Estoniae

    Jänes, Liina, 1977-


    Uusim betoonarhitektuur maailmas: Chichu Kunstimuuseum Naoshima saarel ja eramu "4x4" (arhitekt Tadao Ando), Wolfsburgi teaduskeskus Saksamaal (arhitekt Zaha Hadid), krematoorium Berliinis (arhitekt Axel Schultes), Utrechti ülikooli raamatukogu (arhitekt Wiel Arets), tuleviku betoonmaja The Concrete House (arhitektid Peter Poulet, Michael Harvey). 10 värv. ill

  19. 76 FR 60721 - Deduction for Qualified Film and Television Production Costs (United States)


    ... which the costs are paid (for an owner who uses the cash receipts and disbursements method of accounting) or incurred (for an owner who uses an accrual method of accounting). The deduction under section 181... Bernard P. Harvey, Office of Associate Chief Counsel (Income Tax and Accounting). However, other personnel...

  20. CMMI on the Web: Remastered (United States)


    Patrick Kirwin:  Also see:  ISO 9001/15504/ 12207 /15288 Process...Improvement with CMMI V1.2 and ISO Standards by Boris Mutafelija and Harvey Stromberg (Book) 

  1. After the Storm: Helping Children Cope with Trauma after Natural Disasters (United States)

    Simmons, Krystal T.; Douglas, Denika Y.


    Though adults undoubtedly suffer tremendous stress in the aftermath of natural disasters such as Hurricanes Harvey, Irma, and Maria, it is often the most vulnerable, the children, who are most traumatized and possess the fewest coping skills. Signs of child psychological trauma such as symptoms commonly associated with posttraumatic stress…

  2. From the Andes to the Hindu Kush: Columbian Airpower Lessons for Afghanistan (United States)


    School of Advanced Air and Space Studies Thesis, Maxwell AFB: Air University, 1997. 61 Kline, Harvey F. State Building and Conflict Resolution in...Strategic Importance of USAF Advisory and Assistance Missions. Project Air Force, Santa Monica: RAND Corporation, 2006. Weinstein , Jessica. "U.S

  3. Enhancing Quality of Life for Breast Cancer Patients with Bone Metastases (United States)


    paclitaxel. British Journal of Cancer 84:1126-34; 2001. 46. Jilka, R. L., Weinstein , R. S., Bellido, T., Roberson, P., Parfitt, A. M., and Manolagas...D., and Harvey , W. J. Correlation of neoplasms with incidence and localization of skeletal metastases: An analysis of 1,355 diphosphonate bone scans

  4. Foreign Science and Engineering Presence in U.S. Institutions and the Labor Force (United States)


    United States, Washington, DC, May 2005, pp. 17-65. 8 Center for Immigration Studies, Davis, Donald R. and David E. Weinstein , United States Technological...Academy of Sciences, Wm. A. Wulf, President, National Academy of Engineering, and Harvey Fineberg, President, Institute of Medicine, December 13, 2002

  5. Pigment Anomalies Encountered ID the Transkei

    African Journals Online (AJOL)

    that some birds, reptiles and mammals alter their pig- mentation in conditions of ... albinos, is the same; the colour of the skin depends on the activity of the .... The 'red' people in New Guinea have been described by Walsh' and Harvey: who ...

  6. Balancing Performance and Sustainability in Next-Generation PMR Technologies for OMC Structures (United States)


    John J. La Scala , Benjamin G. Harvey, Giuseppe R. Palmese, William S. Eck, Joshua M. Sadler, Santosh K. Yadav 5d. PROJECT NUMBER 5e. TASK NUMBER...PERFORMANCE AND SUSTAINABILITY IN NEXT-GENERATION PMR TECHNOLOGIES FOR OMC STRUCTURES Gregory R. Yandek,1 Jason T. Lamb,2 John J. La Scala ,3 Benjamin G

  7. Minimizing the Pervasiveness of Women's Personal Experiences of Gender Discrimination (United States)

    Foster, Mindi D.; Jackson, Lydia C.; Hartmann, Ryan; Woulfe, Shannon


    Given the Rejection-Identification Model (Branscombe, Schmitt, & Harvey, 1999), which shows that perceiving discrimination to be pervasive is a negative experience, it was suggested that there would be conditions under which women would instead minimize the pervasiveness of discrimination. Study 1 (N= 91) showed that when women envisioned…

  8. Effect of extracellular calcium chloride on sporangiospore-yeast ...

    African Journals Online (AJOL)



    May 16, 2011 ... Bartnicki-Garcia and Nickerson (1962b) whereby it was shown that R. stolonifer .... A 7 day old culture of R. stolonifer was flushed with sterile deioni- zed distilled water and ..... Madi N, McNeil B, Harvey LM (1997). The effect of ...

  9. 75 FR 51832 - Kansas; Major Disaster and Related Determinations (United States)


    ... determinations. DATES: Effective Date: August 10, 2010. FOR FURTHER INFORMATION CONTACT: Peggy Miller, Recovery... Hazard Mitigation will be limited to 75 percent of the total eligible costs. Further, you are authorized... Atchison, Brown, Butler, Chase, Clay, Cloud, Comanche, Doniphan, Ellis, Franklin, Greenwood, Harvey, Jewell...

  10. The scientific renaissance 1450-1630

    CERN Document Server

    Hall, Marie Boas


    Stimulating, illuminating, and thoughtfully presented, this study explores the early stages of the scientific revolution. A noted historian of science examines the Copernican revolution, the anatomical work of Vesalius, the work of Paracelsus, Harvey's discovery of the circulatory system, the effects of Galileo's telescopic discoveries, and much more.

  11. Not Only English: Affirming America's Multilingual Heritage. (United States)

    Daniels, Harvey A., Ed.

    Intended to help teachers of English, language arts, and other subjects interpret "English Only" language issues for students, parents, and school communities, this book addresses various aspects of the controversy. Articles, listed with their authors, are as follows: (1) "The Roots of Language Protectionism" (Harvey A.…

  12. Mehed ruumis / Rosalyn Deutsche

    Index Scriptorium Estoniae

    Deutsche, Rosalyn


    1985. a. ilmunud T. J. Clarki raamatust "Modernse elu maalikunst: Pariis Manet' ja tema järgijate kunstis". 1989. a. ilmunud Edward W. Soja raamatust "Postmodernistlikud geograafiad" ja David Harvey raamatust "Postmodernne olukord". 1984. a. avaldatud Fredric Jamesoni artiklist "Postmodernism ehk hiliskapitalismi kultuuriline loogika". Bibliograafia lk. 81

  13. Burden and psychological effects : caregiver experiences in a ...

    African Journals Online (AJOL)

    clinicians need to have an approach that focuses not only on ... It is recommended that effectively planned interventions are targeted at ... 6 Harvey Road, Yaba. c/o PO .... The case of the mentally ill person in my family makes me feel over whelmed ..... Disorders in First-Degree Relatives of Children with Cerebral Palsy in.

  14. Pop / Tõnis Kahu

    Index Scriptorium Estoniae

    Kahu, Tõnis, 1962-


    Heliplaatidest: Patti Smith "Trampin", PJ Harvey "Uh Huh Her", Erinevad esitajad "Julm kauamängiv No.1", Method Man "Tical O: The Prequel", The Carpenters "Gold", ZZ Top "Rancho Texicano: The Very Best of ZZ Top", Rüki "Davenport"

  15. 33 CFR 165.838 - Regulated Navigation Area; New Orleans Area of Responsibility, New Orleans, LA. (United States)


    ... Orleans Area of Responsibility, New Orleans, LA. 165.838 Section 165.838 Navigation and Navigable Waters... Guard District § 165.838 Regulated Navigation Area; New Orleans Area of Responsibility, New Orleans, LA... Ponchartrain and to the Mississippi River in New Orleans, LA; (2) The Harvey Canal, between the Lapalco...

  16. 75 FR 78601 - Drawbridge Operation Regulation; Gulf Intracoastal Waterway, New Orleans Harbor, Inner Harbor... (United States)


    ... Operation Regulation; Gulf Intracoastal Waterway, New Orleans Harbor, Inner Harbor Navigation Canal, New Orleans, Orleans Parish, LA AGENCY: Coast Guard, DHS. ACTION: Notice of temporary deviation from... Harvey Lock), at New Orleans, Orleans Parish, Louisiana. This deviation is necessary to adjust the...


    NARCIS (Netherlands)



    Studies of laboratory cultures of Chordaria linearis (Hooker et Harvey) Cotton from southernmost South America revealed that this species has an obligate sexual life history in which a macroscopic sporophyte alternates with a monoecious microscopic gametophyte. Sexual reproduction is isogamous and

  18. Disinfection Alternatives for Small Communities in Puerto Rico (United States)

    Disinfection Alternatives for Small Communities in Puerto Rico Craig Patterson1, Graciela Ramirez Toro2, Harvey Minnigh2, Cristina Maldonado3, and Rajib Sinha4 1U.S. EPA Office of Research and Development, 2Centro de Educación, Conservación e Interpretación Ambiental (CECIA),...

  19. “When Physical Educators let pupils “pass” it makes them outsiders”- A sociological analysis of pupils with autism and ADHD in physical education (PE) at primary schools in Denmark

    DEFF Research Database (Denmark)

    Bentholm, Anette Lisbeth

    It was decided by law in Denmark in 2012 that more children diagnosed with Autism and ADHD were to be included in primary schools. Autism and ADHD are disabling conditions that affect social communication, interaction and often also motor skills and cognition (Harvey & Reid, 2003; Verret, 2010). ...

  20. Aneurysm Complications (United States)

    ... Susco Chair of Research North Shore University Hospital, Brain Aneurysm Center Chair of Research The Christopher C. Getch, MD Chair of Research Carol W. Harvey Memorial Chair of Research Kristen’s Legacy of Love Chair of Research TeamCindy Alcatraz Chair of Research ...

  1. Brain Aneurysm Warning Signs/Symptoms (United States)

    ... Susco Chair of Research North Shore University Hospital, Brain Aneurysm Center Chair of Research The Christopher C. Getch, MD Chair of Research Carol W. Harvey Memorial Chair of Research Kristen’s Legacy of Love Chair of Research TeamCindy Alcatraz Chair of Research ...

  2. Subarachnoid Hemorrhage (United States)

    ... Susco Chair of Research North Shore University Hospital, Brain Aneurysm Center Chair of Research The Christopher C. Getch, MD Chair of Research Carol W. Harvey Memorial Chair of Research Kristen’s Legacy of Love Chair of Research TeamCindy Alcatraz Chair of Research ...

  3. Family History (United States)

    ... Susco Chair of Research North Shore University Hospital, Brain Aneurysm Center Chair of Research The Christopher C. Getch, MD Chair of Research Carol W. Harvey Memorial Chair of Research Kristen’s Legacy of Love Chair of Research TeamCindy Alcatraz Chair of Research ...

  4. Drivers of Plankton Patch Formation, Persistence and Decline in East Sound, Orcas Island, Washington (United States)


    Population dynamics of the marine planktonic ciliate Strombidinopsis multiauris: its potential to control phytoplankton blooms . Aquat. Microb. Ecol., 20...radii with patch exploitation in the coastal ocean. 5th International Zooplankton Production Symposium. Pucón, Chile Menden-Deuer S & Harvey* EL

  5. Draft Genome Sequence of the Nicotinate-Metabolizing Soil Bacterium Bacillus niacini DSM 2923. (United States)

    Harvey, Zachary H; Snider, Mark J


    Bacillus niacini is a member of a small yet diverse group of bacteria able to catabolize nicotinic acid. We report here the availability of a draft genome for B. niacini, which we will use to understand the evolution of its namesake phenotype, which appears to be unique among the species in its phylogenetic neighborhood. Copyright © 2014 Harvey and Snider.

  6. Critical Thinking, Autonomy and Practical Reason (United States)

    Cuypers, Stefaan E.


    This article points out an internal tension, or even conflict, in the conceptual foundations of Harvey Siegel's conception of critical thinking. Siegel justifies critical thinking, or critically rational autonomy, as an educational ideal first and foremost by an appeal to the Kantian principle of respect for persons. It is made explicit that this…

  7. Post-Traumatic Stress Disorder and the Military: A Selected Bibliography (United States)


    traumatic brain injury. As of June 15, 2011, a section de- voted to Military Transition was still under construction. PBS...1-14. http://www.ncbi.nlm. Levin, Harvey S., et al. “Diffusion Tensor

  8. Methods in algorithmic analysis

    CERN Document Server

    Dobrushkin, Vladimir A


    …helpful to any mathematics student who wishes to acquire a background in classical probability and analysis … This is a remarkably beautiful book that would be a pleasure for a student to read, or for a teacher to make into a year's course.-Harvey Cohn, Computing Reviews, May 2010

  9. Somatostatin and dopamine receptors as molecular targets for the medical treatment of Cushing’s disease

    NARCIS (Netherlands)

    C. de Bruin (Christiaan)


    textabstractHarvey Williams Cushing (1869-1939) was born as the 10th child of a well-educated, puritanical medical family in Cleveland (figure 1). He attended Yale University, graduated cum laude from Harvard Medical School and was trained as a general surgeon at Johns Hopkins under the famous

  10. In the Way of Development : Indigenous Peoples, Life Projects and ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Couverture du livre In the Way of Development : Indigenous Peoples, Life Projects and Globalization. Editor(s):. Mario Blaser, Harvey A. Feit et Glenn ... New Cyber Policy Centres for the Global South. IDRC is pleased to announce the results of its 2017 call for proposals to establish Cyber Policy Centres in the Global South.

  11. CRITO: Informal Logic, Critical Thinking, and the Argumentative Essay. (United States)

    Johnson, David Kenneth

    The critical thinker is one who is, according to Harvey Siegel, "appropriately moved by reasons." This characterization of critical thinking combines a "reason assessment" component (the principled assessment of reasons and their ability to warrant beliefs, claims and actions) and a "critical attitude" component (the…

  12. 轶事

    Institute of Scientific and Technical Information of China (English)



    Few can deny the strange coincidences in the deaths of John F. Kennedyand Abraham Lincoln. For example, Kennedy was elected in 1960 while Lincolnassumed the Presidency in 1860. Both men were assassinated from behind, on aFriday and in the presence of their wives. The two men were born exactly onehundred years apart, as were their assassins, Lee Harvey Oswald and and John


    NARCIS (Netherlands)



    Haplogloia andersonii (Farlow) Levring is an anti-tropical species that occurs on cold and warm-temperate Pacific coasts of both Americas. In its habit it resembles the subantarctic species Chordaria linearis (Hooker et Harvey) Cotton. Culture studies show that the species differ in morphology and

  14. Polymerase chain reaction to search for Herpes viruses in uveitic ...

    African Journals Online (AJOL)

    Objective: To analyse aqueous polymerase chain reaction (PCR) results in patients diagnosed with undifferentiated uveitis ... Cite as: Laaks D, Smit DP, Harvey J. Polymerase chain reaction to search for Herpes viruses in uveitic and healthy eyes: a South African ... may be mild and patients do not seek medical attention.

  15. Effects of Chronic Alcohol Exposure on Kainate Receptor-Mediated Neurotransmission in the Hippocampus (United States)


    12917-12922, 1999. Frerking M, and Nicoll RA. Synaptic kainate receptors. Cur Opin Neurobio 10:342-351, 2000. Harvey J and Lacey MG. A postsynaptic...electrophysiological research. Ironically, this preparation was originally developed for use in biochemical studies characterizing energy metabolism in neuronal

  16. 50 CFR 36.39 - Public use. (United States)


    ..., and Swanson Lakes are only open for sport ice fishing. Andy Simons Unit Emerald Lake Green Lake Harvey... sport ice fishing. South of Sterling Highway Headquarters Lake is restricted to administrative use only... this time, the Refuge Manager will authorize, through public notice, the use of snowmobiles less than...

  17. Proactive and Adaptive Agility among Employees : the relationship with personal and situational factors

    NARCIS (Netherlands)

    S.B. Doeze Jager-van Vliet (Sandra)


    markdownabstractIn work and organizational psychology, the notion of agility, that is the capability to adapt, presently is receiving strong interest. Already at the end of the last century Harvey, Koubek and Chin worked towards a model for employee agility. They emphasized the role of internal

  18. COP 18 CARIAA Program presentation

    International Development Research Centre (IDRC) Digital Library (Canada)

    Blane Harvey

    knowledge. Promote research uptake. Strengthen adaptation expertise. Our overarching aim: To develop robust evidence on how to increase the resilience of ... • Speak with us. • Isabelle Proulx. • Evans Kituyi. • Michele Leone. • K.S. Murali. • Blane Harvey. • Hayley Price. • Ken De ...

  19. Nuclear Weapons Effects on Army Tactical Systems. Volume 1. Overview (United States)


    following also are acknowledged for their reviewp of and meaningful comments on one of the final drafts: Heinz Mueller, Frank Wimenitz, Paul Trimmer, Harvey...NY 13201 MELBOURNE , FL 32901FORT WORTH, TX 76101 ATTN TECH LI ATIN C. F. DAVIS, MS 17-220 ATTN RUEBEN FIELDS, M.S. 2655 GENERAL ELECTRIC COMPANY AT

  20. Social Exclusion, Education and Precarity: Neoliberalism, Neoconservatism and Class War from Above (United States)

    Prendergast, Louise M.; Hill, Dave; Jones, Sharon


    In this article we analyze neoliberalism and neoconservatism, their intentions and characteristics, and the relationship between them. We locate these ideologies and associated policies and discourses as part of the :class war from above" (Harvey, 2005). We critically interrogate the impact of their policies and discourses on the social…

  1. Exophthalmos: A Forgotten Clinical Sign of Cushing's Syndrome

    Directory of Open Access Journals (Sweden)

    Aldo Schenone Giugni


    Full Text Available Exophthalmos is typically associated with Graves' ophthalmopathy. Although originally described by Harvey Cushing, exophthalmos is an underappreciated sign of Cushing's syndrome. We present a case of a 38-year-old female who presented with severe bilateral proptosis and was subsequently diagnosed with Cushings disease. We discuss the possible mechanisms causing exophthalmos in patients with either endogenous or exogenous hypercortisolemia.

  2. Cushing's Syndrome From Pituitary Microadenoma and Pulmonary Nodules. (United States)

    Tating, Dan Louie Renz P; Montevirgen, Natasha Denise S; Cajucom, Loyda


    Cushing's syndrome is a state of cortisol excess, possibly from a tumor in the pituitary gland, the adrenal gland, or an ectopic nonpituitary ACTH-secreting source. The first form, pituitary in origin, was originally described by Harvey Cushing, MD, and was labeled as Cushing's disease. Long-term therapy with glucocorticoids also can lead to iatrogenic Cushing's syndrome.

  3. Malls in Zambia: Racialised retail expansion and South African ...

    African Journals Online (AJOL)


    discourses on urban integration and equitable development and the realty of hard- ... conglomerations, African cities now unevenly mirrored the consumptive ..... (Harvey, 2003: 33-36), entailing large investments in rail and road networks. .... large camps, unlike the small traders who traded from their wagons and operated ...

  4. Fusion Canada issue 25

    International Nuclear Information System (INIS)


    A short bulletin from the National Fusion Program highlighting in this issue an economic impact study of the Canadian site for ITER, Harvey Skarsgard: fusion pioneer retires, NFP: Phillips and Holtslander exchange roles, Europe's fusion funding proposals and an update of CCFM/TdeV. 1 fig

  5. Books | Page 20 | IDRC - International Development Research Centre

    International Development Research Centre (IDRC) Digital Library (Canada)

    Migratory Fishes of South America: Biology, Fisheries, and Conservation Status. Fish species that migrate within the great rivers of South America support important local fisheries but are little known outside their native range. Editor(s): Joachim Carolsfield, Brian Harvey, Carmen Ross, and Anton Baer. Publisher(s): World ...

  6. Migratory Fishes of South America : Biology, Fisheries, and ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Migratory Fishes of South America : Biology, Fisheries, and Conservation Status. Couverture du livre Migratory Fishes of South America : Biology, Fisheries, and Conservation Status. Directeur(s) : Joachim Carolsfield, Brian Harvey, Carmen Ross et Anton Baer. Maison(s) d'édition : World Fisheries Trust, Banque mondiale, ...


    NARCIS (Netherlands)



    Nucleotides were compared at 988 sites, spanning both internal transcribed spacers (ITS1 and ITS2) of the nuclear ribosomal DNA, among 17 isolates of the green alga Cladophoropsis membranacea (Hofman Bang ex C. Agardh) Boergesen and two isolates of Struvea anastomosans (Harvey) Piccone and Grunow.

  8. USA folkloristid tutvustavad Eestis afroameerika rahvamuusikat / Andres Roost

    Index Scriptorium Estoniae

    Roost, Andres


    9. veebruaril tutvustavad USA folkloristid Anna Lomax Wood ja Todd Dunham Harvey Eesti Kirjandusmuuseumi saalis Tartus John A. Lomaxi (1867-1948) ja Alan Lomaxi (1915-2002) kogutud afroameerika folkloori, näidatakse dokumentaalfilmi "Land Where the Blues Began"

  9. Folkloor bluusi sünnimaalt

    Index Scriptorium Estoniae


    9. veebruaril tutvustavad USA folkloristid Anna Lomax Wood ja Todd Dunham Harvey Eesti Kirjandusmuuseumi saalis Tartus John A. Lomaxi (1867-1948) ja Alan Lomaxi (1915-2002) kogutud afroameerika folkloori, näidatakse dokumentaalfilmi "Land Where the Blues Began" ja esineb Emajõe deltabluesi ansambel Bullfrog Brown

  10. Further Food for Thought on the "ABS Guide" (United States)

    Hussain, Simon


    This paper replies to points raised by the editors of the "ABS Guide", Huw Morris, Charles Harvey, Aidan Kelly and Michael Rowlinson (2011) "Accounting Education: an international journal", 20(6), pp. 561-573) in response to a paper published in a previous issue of "Accounting Education" (Hussain, S. (2011)…

  11. When the Exception Is the Rule: School Shootings, Bare Life, and the Sovereign Self (United States)

    Shapiro, Harvey


    Much discourse on school shootings tends to imply a binary separation between what is considered normal and exceptional, between an expected course of human events and sociohistorical aberrations. In this article Harvey Shapiro suggests the need for new directions in our responses: First, he shows how responses to school shootings tend to…

  12. Hidden in plain sight : Conceptual and Regulatory Challenges

    NARCIS (Netherlands)

    Nagenborg, Michael Herbert; Timan, Tjerk; Newell, Bryce Clayton; Koops, Bert-Jaap


    A recent off-spring of ‘privacy by design’ are artefacts and gadgets that aim to protect the privacy of the users. An example is the work of Adam Harvey, who ‘explores how fashion can be used as camouflage from face-detection technology’ ( In this contribution, the author

  13. Learning from the Past, Building for the Future (United States)

    Brand, Noreen B.


    The Illinois Holocaust Museum and Education Center (IHMEC) strives to engage youth as citizens through "Make a Difference! The Harvey L. Miller Family Youth Exhibition." Teaching about the Holocaust is complex and challenging work. Holocaust education is mandated in Illinois elementary and high schools, yet the Museum finds that many…

  14. 78 FR 36035 - Proposed Information Collection Activity: [Beneficiary Travel Mileage Reimbursement Application... (United States)


    ... provided for their convenience. This collection of information is necessary to enable the VHA to provide... online through FDMS. FOR FURTHER INFORMATION CONTACT: Cynthia Harvey-Pryor at (202) 461-5870 or Fax (202... use of other forms of information technology. Titles: Beneficiary Travel Mileage Reimbursement...

  15. Distorting the Past (United States)

    Klehr, Harvey


    Many historians on the left are unwilling to renounce communism and the agents in this country who ran its insidious errands. Despite damning evidence from Soviet archives, Julius and Ethel Rosenberg, Alger Hiss, and other traitors remain the darlings of many leaders of the profession. Harvey Klehr documents how, in journals and recent textbooks,…

  16. In Excess of Epistemology: Siegel, Taylor, Heidegger and the Conditions of Thought (United States)

    Williams, Emma


    Harvey Siegel's epistemologically-informed conception of critical thinking is one of the most influential accounts of critical thinking around today. In this article, I seek to open up an account of critical thinking that goes beyond the one defended by Siegel. I do this by re-reading an opposing view, which Siegel himself rejects as leaving…

  17. Comparison of the acute effects of Tulbaghia violacea William Henry ...

    African Journals Online (AJOL)

    Purpose: To assess the effect of the crude methanol leaf extracts of Tulbaghia violacea William Henry Harvey (Alliaceae) on blood pressure (BP) and heart rate in ageing normotensive Wistar Kyoto rats (WKY), and compare the results obtained with those for adult spontaneously hypertensive rats (SHR). Methods: T.

  18. Suur müüdikonverents Tartus / Evelin Banhard

    Index Scriptorium Estoniae

    Banhard, Evelin


    Tartus toimunud rahvusvahelisest konverentsist "Suurte kultuuriliste ja kirjanduslike müütide saatus tänapäeval". Pikemalt Liisa Saariluoma, Jüri Talveti, Angelika Stefanova, Tanel Lepsoo, Caroline De Wagteri, Sonia Bravo Utrera, Ana Martinoska, Marin Laagi, Rutt Hinrikuse, Jeanne Elisabeth Gleseneri, Sabine Coelsch-Foisneri, Harvey L. Hixi ja Hannu K. Riikoneni ettekannetest

  19. New Approaches to Maximizing Thermo-oxidation Resistance of Polycyanurate Networks (United States)


    triazine thermoset resin > 450C Fire (resveratrol) • Polyphenolic antioxidant used as a dietary supplement • Extracted from seaweed, red grapes, red wine ...B.J. Harvey, et. al., SERDP WP-2214 SEED Final Report, U.S. Navy, NAWCWD, China Lake, CA (2011), as presented by R. Lyons at Meeting High

  20. Debating International Learner Assessments as a Proxy Measure of Quality of Education in the Context of EFA--A Review Essay (United States)

    Mulongo, Godfrey


    This review essay looks at three publications that discuss the contentious issue of evaluating education quality (Note 1) by learner outcomes as a proxy indicator (Note 2). The essay explores the debates, gaps and proposes recommendations in the context of Education For All (EFA) (Note 3). The three articles reviewed are Harvey Goldstein's (2004)…

  1. Corporate Finance In Europe Confronting Theory With Practice

    NARCIS (Netherlands)

    D. Brounen (Dirk); A. de Jong (Abe); C.G. Koedijk (Kees)


    textabstractIn this paper we present the results of an international survey among 313 CFOs on capital budgeting, cost of capital, capital structure, and corporate governance. We extend previous results of Graham and Harvey (2001) by broadening their sample internationally, by including corporate

  2. Wilderness restoration: From philosophical questions about naturalness to tests of practical techniques (United States)

    David N. Cole


    When crafting the U.S. Wilderness Act, Howard Zahniser selected the word untrammeled rather than undisturbed to describe wilderness (Harvey 2005). This reflected his belief that places that had been disturbed by humans should be considered for wilderness designation because impaired ecosystems could be restored. Like many others, he hoped that restoration could be...

  3. The history of the theory of the circulation of the blood. (United States)

    Rampling, M W


    An obvious candidate for the seminal event in the history of haemorheology is Harvey's presentation of the concept of the circulation of the blood. Prior to this, the ideas concerning the movement of blood were based, in Europe and Middle East, largely on the principles laid down by Galen, and these had been, in effect, dogma for nearly a millennium and a half. These principles were basically that blood is formed in the liver, thence it travels to the bodily organs and is consumed -hence there is one-way flow and no circulation of the blood at all. Harvey's revolutionary idea that blood circulates repeatedly around the cardiovascular system laid the foundation for haemorheology because once that idea was accepted then the fluidity of the blood immediately became potentially of crucial importance - and haemorheology was conceived. In this paper the ideas that preceded Harvey will be presented, i.e. those of Galen, Ibn al-Nafis, Vesalius, Fabricius and Colombo etc. Harvey's awareness of this background, due mainly to time spent in Padua, triggered his many experimental investigations and discoveries. Ultimately, these led to his astonishing insights published in De Mortu Cordis in 1628 which changed the understanding of the cardio-vascular system forever.

  4. Potential Beneficial Effects of Tulbaghia violacea William Henry ...

    African Journals Online (AJOL)

    Tulbaghia violacea William Henry Harvey (Harv. Alliaceae) is a small bulbous herb belonging to the family Alliaceae. It is used in South Africa to treat fever, colds, asthma, paralysis, and hypertension. Meanwhile, cardiovascular disease accounts for about 30 % of total global death, with most of these deaths occurring in low ...

  5. More value to defining quality

    NARCIS (Netherlands) T.W. Hardjono; Mike Pupius; PhD Everard van Kemenade


    There are lots of definitions of quality, and also of quality in education. Garvin (1984)discerns five approaches: the transcendental approach, the product-oriented approach, the customeroriented approach, the manufacturing-oriented approach and the value-for-money approach. Harvey and Green (1993)

  6. 77 FR 21559 - Ocean Transportation Intermediary License; Applicants (United States)


    ... Individual). Luis Angel Rincon, Manager. Application Type: Business Structure Change and Add NVO Service. Dix.... Global Distribution & Logistics LLC (NVO & OFF), 7977 NW 21st Street, Miami, FL 33122. Officers: Jose L...: Edward J. Hathaway, Vice President-- Business Development (Qualifying Individual). Jeff Harvey, President...

  7. A Strategy Based on Faith: The Enduring Appeal of Progressive American Airpower (United States)


    street lights remained on in Baghdad, as once Cockpit camera view onboard F/A–18C shows Paveway laser-guided bombs and Sidewinder missiles U .S . N...Tretler, Stephen Ran- dolph, Harvey Rishikof, Kurt Neubauer , George Ballinger, William Andrews, Joseph Connors, Christopher Holland, and students of the

  8. Concept study and validation of Antartic telescope tower

    NARCIS (Netherlands)

    Lanford, E.; Swain, M.; Meyers, C.; Muramatsu, T.; Nielson, G.; Olson, V.; Ronsse, S.; Vinding Nyden, E.; Hammerschlag, R.H.; Little, P.


    Studies by Mark Swain and a colleague at the Max Planck Institut für Astronomie, coupled with results from past and ongoing projects at Harvey Mudd College, strongly suggest that it may be possible to achieve imaging performance comparable to the Hubble Space Telescope at relatively low cost using


    African Journals Online (AJOL)

    David A van Os J, Harvey t Foerster A, Fahy T. Insight and psychotic illness. Cross-sectional ... Hafner H, Riecher A, Maurer K, Loffler W, Munk-Jorgensen P. Stromgren E. How does gender influence age at first ... In: Bloom FE, Kupfer DJ, eds.

  10. A brief history of dosage compensation

    Indian Academy of Sciences (India)

    depression of X-linked gene activity in the female, as well as by hyperexpression of the ... to the Harvey lecture, Muller had presented important ideas relative to dosage ... at Columbia. I do recall a talk by the popular physical anthro- pologist ...

  11. The Corpus Status of Literature in Teaching Sociology: Novels as "Sociological Reconstruction" (United States)

    Carlin, Andrew P.


    Using fiction in teaching sociology involves what Harvey Sacks calls "sociological reconstruction". Numerous comments on teaching sociology provide advice and suggestions on the use of literature and "what counts" as "sociological" literature, including specific titles. This paper goes further: while the use of literature is a routine feature of…

  12. Conceiving Education: The Creative Task before Us (United States)

    Laverty, Megan J.


    Philosophers of education regularly undertake the challenging task of defining their field and what it is they do. John White and Harvey Siegel are no exception: Siegel categorizes philosophy of education as a branch of philosophy, and White responds that philosophers of education would do better to adopt a Deweyan perspective. White claims that…

  13. Philosophy, Philosophy of Education, and Economic Realities (United States)

    White, John


    In 2009 Harvey Siegel edited "The Oxford Handbook of Philosophy of Education." This article develops a theme, prompted by reflection on several essays in that volume, about the nature of philosophy of education and its relation to philosophy. Siegel's view that philosophy of education is a "branch" of philosophy is put to…

  14. Toleration, Multiculturalism and Mistaken Belief (United States)

    Standish, Paul


    Doubts have been expressed about the virtue of toleration, especially in view of what some have seen as its complicity with a morality of anything goes. More rigorous arguments have been provided by Peter Gardner and Harvey Siegel against the relativism evident in certain versions of multiculturalism and in the new religious studies. This article…

  15. Studies on rare earth elements in seawater and uptake by marine organisms

    International Nuclear Information System (INIS)

    Suzuki, H.; Koyanagi, T.; Saiki, M.


    The contents of rare earth elements in marine environmental samples were determined by neutron activation analysis to examine the existing state in coastal seawater and the concentration by marine organisms of the elements. Seawater was filtered through a Millipore filter GS (pore size 0.22 μm), before the analysis. Some of the seawater was treated with HC1 solution before filtration and some after filtration. Certain marine organisms were also analysed for determination of rare earth elements. These were: flounder (Paralichthys olivaceus); yellowtails (Seriola quinqueradiata); immature anchovy (Engraulis japonica); clams (Meretrix lusoria); green algae (Ulva pertusa); brown algae (Hizikia fusiforme, Sargassum fulvellum, Undaria pinnatifida). In the seawater without HC1 treatment before filtration, considerable amounts of the elements existed in residue on the filter, whereas in the seawater treated with HC1 before filtration, the greater part remained in the dissolved state. Concentration factors calculated from the contents of stable elements, therefore, are affected remarkably by the existing state of the elements in seawater. If only the dissolved state is assumed available for marine organisms, values one order higher are attained compared with the case where total amounts of the elements were used for the calculation. However, the contribution of the insoluble state seems to be not negligible with some organisms. The higher concentration factors for immature anchovy and clams observed in this study were considered to be caused by surface adsorption of elements in particulate form and also ingested sediment with high element concentration. (author)

  16. Application of PIXE analysis to environmental samples stable element distribution in sea algae by scanning microprobe analysis

    International Nuclear Information System (INIS)

    Ishikawa, M.; Kitao, K.; Imaseki, H.; Ishii, T.; Uchida, S.


    The resolution of a 33+-3 μm microprobe focussed with quadrupole doublet installed at the 3 MV Van de Graaff of the National Institute of Radiological Sciences, Japan, was used for the present analysis. Brown algae, Hizikia fusiforme was the sample target bombarded with a 2 MeV proton beam collimated mechanically into a rectangular image of 100 μm x 700 μm. Scanning across the sample target prepared into a longitudinal section from the caulis of the algae provided the following observations. More than 12 elements such as Al, Si, P, Cl, Ca, Mn, Fe, Cu, Zn, As, Br and Sr were determined simultaneously, together with their distributional information across the diameter. In the medullary layer, Mn and Zn were specific in their accumulation, while the deposition of Fe, Cu, As and Br were observed to be high in the epithelial layer, especially Fe and Cu which were found on the surface, where they contacted ambient sea water, but no significant change in pattern was indicated for such elements as Al, P and Cl. The PIXE microprobe analysis was, therefore, effective in its detectability for elements below a few ppm level, resultantly providing further possibilities for collecting information from bio-medical and environmental samples on trace characterization of elements. (author)

  17. Heavy metal, total arsenic, and inorganic arsenic contents of algae food products. (United States)

    Almela, C; Algora, S; Benito, V; Clemente, M J; Devesa, V; Súñer, M A; Vélez, D; Montoro, R


    The total arsenic, inorganic arsenic, lead, cadmium, and mercury contents of 18 algae food products currently on sale in Spain were determined. The suitability of the analytical methodologies for this type of matrix was confirmed by evaluating their analytical characteristics. The concentration ranges found for each contaminant, expressed in milligrams per kilogram of dry weight, were as follows: total arsenic, 2.3-141; inorganic arsenic, 0.15-88; lead, mercury, 0.004-0.04. There is currently no legislation in Spain regarding contaminants in algae food products, but some of the samples analyzed revealed Cd and inorganic As levels higher than those permitted by legislation in other countries. Given the high concentrations of inorganic As found in Hizikia fusiforme, a daily consumption of 1.7 g of the product would reach the Provisional Tolerable Weekly Intake recommended by the WHO for an average body weight of 68 kg. A more comprehensive study of the contents and toxicological implications of the inorganic As present in the algae food products currently sold in Spain may be necessary, which might then be the basis for the introduction of specific sales restrictions.

  18. Owenia caissara sp. n. (Annelida, Oweniidae from Southern Brazil: addressing an identity crisis

    Directory of Open Access Journals (Sweden)

    Luiz Silva


    Full Text Available ABSTRACT We re-assess the taxonomic status of Owenia Delle Chiaje, 1841 from Southern Brazil based on estuarine specimens from Paranaguá Bay (Paraná and Babitonga Bay (Santa Catarina, and literature records. Owenia caissara sp. n. is diagnosed by a branchial crown with five pairs of tentacles, branched close to the base of the crown, rectilinear collar with a pronounced lateral slit, two ventrolateral ocelli partially covered by the collar, up to 23 hooks on a single row in the first abdominal segment, regularly curved nuchal shape, regularly moderate teeth curvature, and long and thin scales with oval transition. The description of Owenia caissara sp. n. reinforces the idea that Owenia fusiformis sensu lato is a complex of closely related species that can be distinguished on the basis of both macro- and micro- morphological traits.

  19. Hydrodynamic advantages of swimming by salp chains. (United States)

    Sutherland, Kelly R; Weihs, Daniel


    Salps are marine invertebrates comprising multiple jet-propelled swimming units during a colonial life-cycle stage. Using theory, we show that asynchronous swimming with multiple pulsed jets yields substantial hydrodynamic benefit due to the production of steady swimming velocities, which limit drag. Laboratory comparisons of swimming kinematics of aggregate salps ( Salpa fusiformis and Weelia cylindrica ) using high-speed video supported that asynchronous swimming by aggregates results in a smoother velocity profile and showed that this smoother velocity profile is the result of uncoordinated, asynchronous swimming by individual zooids. In situ flow visualizations of W. cylindrica swimming wakes revealed that another consequence of asynchronous swimming is that fluid interactions between jet wakes are minimized. Although the advantages of multi-jet propulsion have been mentioned elsewhere, this is the first time that the theory has been quantified and the role of asynchronous swimming verified using experimental data from the laboratory and the field. © 2017 The Author(s).

  20. Twenty new Records of Algae in some Springs around Safeen Mountain Area

    Directory of Open Access Journals (Sweden)

    Farhad Hassan Aziz


    Full Text Available This study was carried out in 2015-2016 within Erbil governorate. A total of 151 algal species were identified from 8 divisions, 9 classes, 24 orders, 37 families and 72 genera. The majority species were belonged to Chlorophyta with 68 species (45.033%, followed by Cyanophyta with 46 species (30.463%, Euglenophyta with 18 species (11.92%, Chrysophyta with 12 species (7.947%, Charophyta with 3 species occupied (1.987%,  Rhodophyta with 2 species (1.32% and each of Cryptophyta and Pyrrophyta with one species occupied (0.662%. Among them, 20 species and 6 genera are new records to Iraqi flora viz.: Komvophoron constrictum, Nephrocytium agardhianum, Lepocinclis fusiformis, Petalomonas sp., Heteronema acus, Peranema trichophorum and Chilomonas paramecium were recorded as new to the Iraqi algal flora.

  1. Ecología, sistemática y distribución de Foraminíferos Bentónicos entre la desembocadura del río Sinú y Coveñas, Caribe Colombiano

    Directory of Open Access Journals (Sweden)

    Parada Ruffinatti Carmen


    Full Text Available En cuatro ecosistemas diferentes: estuario, laguna costera, zona litoral y zona infralitoral, se identificó una microfauna constituida por 75 taxa, de los cuales un 14.6110estuvo representado en la biocenosis. Se  encontró que Ammonia beccarii es la especie de más amplia distribución en todos los ambientes estudiados.Los grupos faunísticos se relacionaron con algunos parámetros ecológicos.En el ecosistema marino infralitoral se estableció un predominio de género Quinqueloculina en sedimentos arenosos y del genera Nonionella, en sedimentos limo-arcillosos. Quinqueloculina distorqueata Cushman, Q. ferussacii d'Orbigny y Fursenkoina fusiformis (Williamson son reportadas por primera vez en el Caribe.

  2. Effects of silicon deficiency on lipid and carbohydrate metabolism in the diatom Cyclotella cryptica

    International Nuclear Information System (INIS)

    Roessler, P.G.


    Previous studies have shown that silicon deficiency induces lipid accumulation in certain diatom species. The nature of the lipids produced under these conditions was not investigated, however, and the biochemical mechanisms which underlie this phenomenon were not determined. Research was carried out in order to increase our knowledge concerning the aspects of lipid accumulation in diatoms. The first phase of this project indicated that the diatoms C. cryptica, Cylindrotheca fusiformis, and Thalassiosira pseudonana accumulated storage lipids when grown under silicon-limiting conditions. The ratio of saturated and monounsaturated fatty acids to polyunsaturated fatty acids in C. cryptica cells increased markedly after 24 hours of silicon deficiency. Tracer experiments with [ 14 C]bicarbonate suggested that lipid accumulation in silicon-limited C. cryptica cells was due to two distinct processes: (1) an increase in the amount of newly photoassimilated carbon partitioned into lipids, and (2) a slow conversion of non-lipid compounds (carbohydrates and presumably proteins) into lipids

  3. Open ocean pelago-benthic coupling: cyanobacteria as tracers of sedimenting salp faeces (United States)

    Pfannkuche, Olaf; Lochte, Karin


    Coupling between surface water plankton and abyssal benthos was investigated during a mass development of salps ( Salpa fusiformis) in the Northeast Atlantic. Cyanobacteria numbers and composition of photosynthetic pigments were determined in faeces of captured salps from surface waters, sediment trap material, detritus from plankton hauls, surface sediments from 4500-4800 m depth and Holothurian gut contents. Cyanobacteria were found in all samples containing salp faeces and also in the guts of deep-sea Holothuria. The ratio between zeaxanthin (typical of cyanobacteria) and sum of chlorophyll a pigments was higher in samples from the deep sea when compared to fresh salp faeces, indicating that this carotenoid persisted longer in the sedimenting material than total chlorophyll a pigments. The microscopic and chemical observations allowed us to trace sedimenting salp faeces from the epipelagial to the abyssal benthos, and demonstrated their role as a fast and direct link between both systems. Cyanobacteria may provide a simple tracer for sedimenting phytodetritus.

  4. Climatic origins predict variation in photoprotective leaf pigments in response to drought and low temperatures in live oaks (Quercus series Virentes). (United States)

    Ramírez-Valiente, Jose A; Koehler, Kari; Cavender-Bares, Jeannine


    Climate is a major selective force in nature. Exploring patterns of inter- and intraspecific genetic variation in functional traits may explain how species have evolved and may continue evolving under future climate change. Photoprotective pigments play an important role in short-term responses to climate stress in plants but knowledge of their long-term role in adaptive processes is lacking. In this study, our goal was to determine how photoprotective mechanisms, morphological traits and their plasticity have evolved in live oaks (Quercus series Virentes) in response to different climatic conditions. For this purpose, seedlings originating from 11 populations from four live oak species (Quercus virginiana, Q. geminata, Q. fusiformis and Q. oleoides) were grown under contrasting common environmental conditions of temperature (tropical vs temperate) and water availability (droughted vs well-watered). Xanthophyll cycle pigments, anthocyanin accumulation, chlorophyll fluorescence parameters and leaf anatomical traits were measured. Seedlings originating from more mesic source populations of Q. oleoides and Q. fusiformis increased the xanthophyll de-epoxidation state under water-limiting conditions and showed higher phenotypic plasticity for this trait, suggesting adaptation to local climate. Likewise, seedlings originating from warmer climates had higher anthocyanin concentration in leaves under cold winter conditions but not higher de-epoxidation state. Overall, our findings suggest that (i) climate has been a key factor in shaping species and population differences in stress tolerance for live oaks, (ii) anthocyanins are used under cold stress in species with limited freezing tolerance and (iii) xanthophyll cycle pigments are used when photoprotection under drought conditions is needed. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email:

  5. Extreme Wind, Rain, Storm Surge, and Flooding: Why Hurricane Impacts are Difficult to Forecast? (United States)

    Chen, S. S.


    The 2017 hurricane season is estimated as one of the costliest in the U.S. history. The damage and devastation caused by Hurricane Harvey in Houston, Irma in Florida, and Maria in Puerto Rico are distinctly different in nature. The complexity of hurricane impacts from extreme wind, rain, storm surge, and flooding presents a major challenge in hurricane forecasting. A detailed comparison of the storm impacts from Harvey, Irma, and Maria will be presented using observations and state-of-the-art new generation coupled atmosphere-wave-ocean hurricane forecast model. The author will also provide an overview on what we can expect in terms of advancement in science and technology that can help improve hurricane impact forecast in the near future.

  6. Lessons from the history of medicine. (United States)

    Waller, John


    What is the point of teaching the history of medicine? Many historians and clinicians find it regrettable that some medical students today will graduate knowing almost nothing of such "greats" of the past as Hippocrates, Galen, Vesalius, Harvey, Lister, and Pasteur. But does this really matter? After all, traditional history of medicine curricula tended to distort medicine's past, omitting the countless errors, wrong turns, fads, blunders, and abuses, in order to tell the sanitized stories of a few scientific superheroes. Modern scholarship has seriously challenged most of these heroic dramas; few of our heroes were as farsighted, noble, or obviously correct as once thought. Joseph Lister, for example, turns out to have had filthy wards, whereas William Harvey was devoted to the Aristotelianism he was long said to have overthrown [1]. But as the history of medicine has become less romanticized, it has also become much more relevant, for it promises to impart useful lessons in the vital importance of scientific scepticism.

  7. Treatment of Crohn's disease with cannabis: an observational study. (United States)

    Naftali, Timna; Lev, Lihi Bar; Yablecovitch, Doron; Yablekovitz, Doron; Half, Elisabeth; Konikoff, Fred M


    The marijuana plant cannabis is known to have therapeutic effects, including improvement of inflammatory processes. However, no report of patients using cannabis for Crohn's disease (CD) was ever published. To describe the effects of cannabis use in patients suffering from CD. In this retrospective observational study we examined disease activity, use of medication, need for surgery, and hospitalization before and after cannabis use in 30 patients (26 males) with CD. Disease activity was assessed by the Harvey Bradshaw index for Crohn's disease. Of the 30 patients 21 improved significantly after treatment with cannabis. The average Harvey Bradshaw index improved from 14 +/- 6.7 to 7 +/- 4.7 (P disease in humans. The results indicate that cannabis may have a positive effect on disease activity, as reflected by reduction in disease activity index and in the need for other drugs and surgery. Prospective placebo-controlled studies are warranted to fully evaluate the efficacy and side effects of cannabis in CD.

  8. Going back

    DEFF Research Database (Denmark)

    Høyer, Ole Izard

    This paper sets out to explore the authentication processes of members of a Danish jazz musician’s community and illustrates the struggle of being an authentic Western European performer of an African American art form. The analysis is grounded in Harvey Sacks’ Membership Categorisation Analysis ...... as to what an authentic jazz identity should constitute. The paper concludes with a discussion of the ways in which speakers’ articulations of jazz construct an independent authentic Danish jazz identity.......This paper sets out to explore the authentication processes of members of a Danish jazz musician’s community and illustrates the struggle of being an authentic Western European performer of an African American art form. The analysis is grounded in Harvey Sacks’ Membership Categorisation Analysis...

  9. Managers versus students: new approach in improving capital structure education


    Miglo, Anton


    According to Graham and Harvey (2001), an immense gap exists between capital structure theories and practice. By analyzing students’ perception of capital structure theories and the differences between their opinion and that of the current CEO’s and managers this paper argues that this can be partially explained by current educational practices. Educators mostly focus on one or maybe two most popular theories and students have much smaller knowledge about other theories. Secondly educational ...

  10. MONTAGE: A Methodology for Designing Composable End-to-End Secure Distributed Systems (United States)


    and verification, from PSOS [NF03] to the recent seL4 [KEH+09]. While they make considerable progress toward high-assurance OS, these works are not...of the specification itself. Examples include the seL4 microkernel work by Klein et al. [KEH+09], which presents the experience of formally proving...David Cock, Philip Derrin, Dhammika Elkaduwe, Kai Engelhardt, Rafal Kolanski, Michael Norrish, Thomas Sewell, Harvey Tuch, and Simon Winwood. sel4

  11. The birth and growth of neuroradiology in the USA

    International Nuclear Information System (INIS)

    Gutierrez, C.; Goettingen Univ. Germany, F.R. Klinik fuer Neurochirurgie)


    Neuroradiology in the USA was started by the neurosurgeons Harvey Cushing, who personally made the first X-rays used to treat a patient with a neurological disability, and Walter Dandy, who first performed air ventriculography, ventriculoscopy, air encephalography and air myelography. The father of neuroradiology in the USA was Merrill Sosman, Cushing's associate. Modern neuroradiology was introduced into the USA from Europe by Mannie Schechter who was one of the original team of three Chief Editors of Neuroradiology. (orig.)

  12. Role of Crk Adaptor Proteins in Cellular Migration and Invasion in Human Breast Cancer (United States)


    Ali, S.M., Harvey , H.A., Lipton, A. (2003). Clin Orthop Relat Res. 415 (Suppl): S132-7. 1 2 1 2 sh C rk p Su p er MDA-231TR A B C D...research 2005;14(6):919-40. 27. Weinstein EJ, Leder P. The extracellular region of heregulin is sufficient to promote mammary gland proliferation and

  13. CTC Sentinel. Volume 6, Issue 10 (United States)


    and the office of Kenyan President Uhuru Kenyatta.11 Fighting continued into the evening of Tuesday , 6 Daniel Howden, “Terror in Nairobi: The Full...provided Iraq with $1 billion per month starting in 1982. See John Bulloch and Harvey Morris , The Gulf War: Its Origins, History and Consequences (London...Expected,” UN High Commissioner for Refu- gees, September 5, 2013. 25 Biro. 26 Loveday Morris , Joby Warrick and Souad Mekhen- net, “Rival al-Qaeda

  14. Robustness of two single-item self-esteem measures: cross-validation with a measure of stigma in a sample of psychiatric patients. (United States)

    Bagley, Christopher


    Robins' Single-item Self-esteem Inventory was compared with a single item from the Coopersmith Self-esteem. Although a new scoring format was used, there was good evidence of cross-validation in 83 current and former psychiatric patients who completed Harvey's adapted measure of stigma felt and experienced by users of mental health services. Scores on the two single-item self-esteem measures correlated .76 (p self-esteem in users of mental health services.

  15. Social justice in the context of adaptation to climate change – reflecting on different policy approaches to distribute and allocate flood risk management


    Thaler, Thomas; Fuchs, Sven; Priest, Sally J.; Doorn, Neelke


    Editorial to a special edition of the journal. Consequences of extreme hydrological events, such as those recently experienced in United States (e.g. Hurricane Harvey or Irma in 2017), floods in South Asia in 2017, or the Central European floods in 2013 and 2016, have again focused the attention of society, policy makers and academic scholars on questions of how to reduce vulnerability to such events, especially when faced with the dual challenges of climate and societal change. Not only is t...

  16. Assessing the present and future probability of Hurricane Harvey’s rainfall


    Emanuel, Kerry


    Significance Natural disasters such as the recent Hurricanes Harvey, Irma, and Maria highlight the need for quantitative estimates of the risk of such disasters. Statistically based risk assessment suffers from short records of often poor quality, and in the case of meteorological hazards, from the fact that the underlying climate is changing. This study shows how a recently developed physics-based risk assessment method can be applied to assessing the probabilities of extreme hurricane rainf...

  17. Spatial analysis of landfills in respect to flood events and sea-level rise using ArcGIS Pro


    Taylor, Benjamin S; Fei, Songlin


    "Recently in the news, media coverage of flood events has garnered attention due to tropical storms like Hurricane Harvey and the costly damages that resulted. Under climate change, events like sea-level rise (SLR) and flooding are projected to increase which threaten infrastructure, making it necessary for proper planning before, during, and after installation of landfills to mitigate risk. Studies in Austria and the UK have revealed that many landfills are located in flood zones in addition...

  18. Development of Personalized Cancer Therapy for Men with Advanced Prostate Cancer (United States)


    MD Anderson. Fusion analysis of the first 19 cases demonstrates 10 cases are ETS fusion positive, while 9 cases are ETS fusion negative. Notably...Foundation Grants Officer: Jane Zuber, Director, Contracts & Grants, Texas A&M Univ. System 400 Harvey Mitchell Pkwy South, Suite 300 College Station, TX...prostate cancer PDXs for expression of targets of interest to company. 18 ARAUJO, John None BROOM, Bradley ACTIVE Bioinformatics Gift ( Weinstein

  19. Production, Manipulation, and Applications of Ultracold Polar Molecules (United States)


    were added to the MURI, and in some cases , the experiments were carried out on different molecules than originally stated (e.g., laser cooling and...interactions between like homonuclear alkali metal diatoms. J. Chem. Phys., 135:244307, 2011. [21] Jason N. Byrd, H. Harvey Michels, Jr. John A. Montgomery...111:1, 2013. [35] M. I. Fabrikant, Tian Li, N. J. Fitch, N. Farrow, Jonathan D. Weinstein , and H. J. Lewandowski. Method for traveling-wave

  20. Amnesty, Reconciliation and Reintegration: The International Community and the Rwandan Process (United States)


    N., Harvey M. Weinstein , and Timothy Longman. "Trauma and PTSD Symptoms in Rwanda: Implications for Attitudes Toward Justice and Reconciliation...repairing the social fabric of the nation had to take place. The case shows how Rwanda overcame the negative impacts of the international community and...reintegration policies. Throughout the case there are four issues that prove integral to the AR2 process; the anthropology of Rwanda, its colonial

  1. A Hybrid Approach to Composite Damage and Failure Analysis Combining Synergistic Damage Mechanics and Peridynamics (United States)


    Composite Damage and Failure Analysis Combinin Synergistic Damage Mechanics and Peridynamics 6. AUTHOR(S) 5b. GRANT NUMBER N00014-16-1-2173 5c...NUMBER 8. PERFORMING ORGANIZATION REPORT NUMBER Texas A&M Engineering Experiment Station (TEES) 400 Harvey Mitchell Parkway, Suite 300 College...1.3 related to Synergistic Damage Mechanics and Tasks 2.2 and 2.4 related to Peridynamics, as described in the project proposal. The activities

  2. The Pathophysiology of Decompression Sickness and the Effects of Doppler Detectable Bubbles. (United States)


    workers (Harvey, 1951a and 1951b) and Blinks, Twitty and Whiteker (1951) show that muscular activity was a 23 ~I. predisposing factor to the formation of...Hills, 1966), the mechanism of action is somewhat specific (neural distension ); but for those theories utilizing circulation and/or intravascular...highly perfused non- muscular tissue, such as kidney, forms a gas phase following decompression, Doppler perivascular cuff probes were surgically placed on

  3. Interface air-mer : aspects écologiques du microneuston dans le film de surface


    De Souza Lima, Yolanda


    The sea surface microlayer (upper 100 pm) was sampled using Harvey's rotating drum collector. Greater amounts of nutrients, particulate organic carbon and living material occurred in the surface film than in samples taken at 0,50m. Neuston displayed a greater level of absolute production, but assimilation numbers were usually lower in the films than at a depth of 0,50m. Algal phytoplankton also occurred in much higher densities in sea-surface films than in subsurface waters. Individual specie...

  4. A scientific evaluation of an organization and its leadership and administrative prastices: Report of management


    IVANOV, Sergey


    Abstract. This article intends provide an evaluation of an organization based on organizational theories, developed largely by W. Edwards Deming, Jerry B. Harvey, and other theorists. Drawing from these theories, the authors apply different methods to conduct an organizational study, evaluating a mid-size organization located in the United States, and make recommendations for improvement to upper management.Keywords. Organizational study, Abilene paradox, Phrog farms, Feararchy, Deming’s dise...

  5. Astronaut John W. Young during water egress training (United States)


    Astronaut John W. Young, prime crew command pilot for the Gemini 10 space flight, sits in Static Article 5 during water egress training activity on board the NASA Motor Vessel Retriever. The SA-5 will be placed in the water and he and Astronaut Michael Collins, will then practice egress and water survival techniques. At right is Gordon Harvey, Spacecraft Operations Branch, Flight Crew Support Division.

  6. Airpower in Hybrid War: Ethical Implications for the Joint Force Commander (United States)


    as Machiavelli wrote in The Prince , is “just” when it is “necessary.” 38 Confederate General William Sherman, in a letter to the mayor of Atlanta...Comprehensive Guide to the Peloponnesian War, ed. Robert B. Strassler (New York: Free Press, 1996), Chapter 17. 38 Niccolo Machiavelli , The Prince , 2 nd ed...Journal of Military Ethics 3 no. 3 (2004): 239. Machiavelli , Niccolo. Ed. and trans. by Harvey Claflin Mansfield. The prince . 2nd ed. Chicago, IL

  7. Strategic Forum. Number 285, January 2014. The Flawed Strategic Debate on Syria (United States)


    that the Syrian regime of 2015 and beyond will not count us among its benefactors. Niccolò Machiavelli wrote, “A prince must imitate the fox and...who_is_in_charge_of_us_syria_policy>. 60 Niccolò Machiavelli , The Prince , trans. Harvey Mansfield (Chicago: University of Chicago Press, 1998), 69...very real possibility that Syria will not fulfill its chemi- cal weapons obligations under the agreement reached in late 2013. For as Machiavelli

  8. Friction in the U.S. Army During Irregular Warfare (United States)


    PowerPlus Books, 2002), 86–97. 29Niccolo Machiavelli and Harvey C Mansfield, The Prince (Chicago, IL: University of Chicago Press, 1985), 21–25...Gilbert, eds., Makers of Modern Strategy: From Machiavelli to the Nuclear Age (Princeton, N.J: Princeton University Press, 1986), 155. 5... Machiavelli , influenced by Greek and Roman writings, provided the basic underpinning for acquisition of land and wealth.29 Of particular importance was the

  9. Dispossessing Urbanization: Urban Marxism in the Face of the Problem of Primitive Accumulation


    Piotr Juskowiak


    The article is a complex attempt to present the achievements of the broadly understood urban Marxism in the field of reinterpretation of the classic concept from the cards of Capital – “primitive accumulation”. Drawing on theories of such scholars as David Harvey (“accumulation by dispossession”) or Saskia Sassen (“expulsions”), the author points to the possible ways to operationalize the concept of “dispossessing urbanization”. Inspired by the theorizations of autonomist Marxists (Antonio Ne...

  10. Polycyanurates and Polycarbonates Based on Eugenol: Alternatives to Thermosetting and Thermoplastic Polymers Based on Bisphenol A (United States)


    to 5a. CONTRACT NUMBER In-House Thermosetting and Thermoplastic Polymers based on Bisphenol A 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6...Francisco, CA, 14 August 2014. PA#14389 14. ABSTRACT Polycyanurate thermosetting networks, polycarbonate thermoplastics, and homogenous polycarbonate...ON EUGENOL: ALTERNATIVES TO THERMOSETTING AND THERMOPLASTIC POLYMES BASED ON BISPHENOL A 14 August 2014 Andrew J. Guenthner1, Benjamin G. Harvey2

  11. Development of Medical Technology for Contingency Response to Marrow Toxic Agents (United States)


    Purified genomic DNA absorbed onto cotton- tipped swabs (“DNA swabs”) has proven to be successful and cost-effective alternative QC sample type...inversely correlated with the ability to achieve long range PCR amplification of the DNA obtained from the cotton tipped swab used by NMDP for donor...Harvey, C. Steward and V. Rocha 800 pairs Microsatellit es and STR Taqman In process Prognostic impact of somatic mutation and the levels of

  12. Purchasing power parity in OECD countries: nonlinear unit root tests revisited


    Juan Carlos Cuestas; Paulo José Regis


    The aim of this paper is to provide additional evidence on the purchasing power parity empirical fulfillment in a pool of OECD countries. We apply the Harvey et al. (2008) linearity test and the Kruse (2010) nonlinear unit root test. The results point to the fact that the purchasing power parity theory holds in a greater number of countries than has been reported in previous studies.

  13. The object classification task for children: A new measure of concept generation and mental flexibility in early childhood


    Smidts, D.P.; Jacobs, R.; Anderson, V.


    In this study, the development of concept generation and mental flexibility was investigated in 84 Australian children between 3 and 7 years of age, using the Object Classification Task for Children (OCTC), a newly developed executive function test for use with young children. On this task, which was adapted from the Concept Generation Test (Levine, Stuss, & Milberg, 1995) and the Concept Generation Test for Children (Jacobs, Anderson, & Harvey, 2001), children were asked to categorize 6 plas...

  14. Injection of an antibody against a p21 c-Ha-ras protein inhibits cleavage in axolotl eggs.


    Baltus, E; Hanocq-Quertier, J; Hanocq, F; Brachet, J


    The presence of a ras protein was demonstrated in cleaving axolotl eggs by selective immunoprecipitation with a polyclonal antibody against a peptide encoded by the c-Ha-ras oncogene, cellular homolog of the v-Ha-ras oncogene of Harvey rat sarcoma virus. Injection of this antibody into axolotl oocytes subjected to progesterone treatment does not prevent meiotic maturation. Injection of the same antibody into a blastomere of axolotl eggs at the 2- or 4-cell stage causes cleavage arrest in the ...

  15. Sound / Ülo Külm

    Index Scriptorium Estoniae

    Külm, Ülo


    Uutest plaatidest Uriah Heep "Sonic Origami", Amanda Lear "Follow Me Back In My Arms", No Mercy "More", Dr.Bombay "Rice & Curry", Vanilla Ice"Hard To Swallow", Orgy "Cancỳass", Bee Gees "One Night Only", PJ Harvey "Is This Desire", Mudhoney "Tomorrow Hit Today", Frank Sinatra "Sinatra And Swingin Brass", Kurupt "Kuruption!", Mike Scott & The Waterboys "The Whole Of The Moon", Dodgy "Ace As & Killer Bs"

  16. Batrachospermum atrum (Rhodophyta – first record in Poland

    Directory of Open Access Journals (Sweden)

    Kowalski Wojciech A.


    Full Text Available The paper gives new data on the occurrence of Batrachospermum atrum (Hudson Harvey, a freshwater Rhodophyta species rare in Poland. It was found growing on stony bottom in a small stream in northwestern Poland; at this site it was associated mainly with Potamogeton nodosus Poir., green algae Cladophora glomerata (L. Kützing and Mougeotia sp. Its occurrence in Poland and some ecological data are discussed, and original photographs of the plant and its habitat are presented.

  17. The Multiplicities Within Capitalist Rule and the Articulation of Struggles

    Directory of Open Access Journals (Sweden)

    Michael Hardt


    Full Text Available This contribution is part of a debate between Michael Hardt/Toni Negri and David Harvey on the occasion of Marx’s bicentenary (May 5, 2018. The discussion focuses on the question of what capitalism looks like today and how it can best be challenged. In this article, Hardt and Negri respond to David Harvey’s article “Universal Alienation”.

  18. Investigating the Properties of Granulation in the Red Giants Observed by Kepler

    DEFF Research Database (Denmark)

    Mathur, S.; Hekker, S.; Trampedach, R.


    to upward flows of hot plasma and downward flows of cooler plasma. We fitted Harvey-like functions to the power spectra, to retrieve the timescale and amplitude of granulation. We show that there is an anti-correlation between both of these parameters and the position of maximum power of acoustic modes......, while we also find a correlation with the radius, which agrees with the theory. We finally compare our results with 3D models of the convection....

  19. The European Union’s Policy Regarding Peace and Security in Sub-Saharan Africa Since the End of the Cold War: Concepts and Implementation (United States)


    Policy: The Commission as Policy Entrepreneur in the CFSP,” European Foreign Affairs Review 8, no. 2 (2003): 221. 4 Stephan R. Hurt, “The European...Harvey, eds. Millennial Reflections on International Studies. Michigan: University of Michigan Press, 2002. Keohane, Robert, and Lisa L. Martin. “The... Entrepreneur in the CFSP.” European Foreign Affairs Review 8, no. 2 (2003): 221-237. ———.“Mehr als ein Papiertieger? Die Konfliktbearbeitungspolitik

  20. How Much Will Be Enough? Assessing Changing Defense Strategies Implications for Army Resource Requirements (United States)


    force management and modernization 59 See, for example, Tim Bonds, Glenn A. Kent, Colin Lampard, Randall Bowdish, John Birkler, Monti D. Callero... Tim , Glenn A. Kent, Colin Lampard, Randall Bowdish, John Birkler, Monti D. Callero, and James Chiesa, A Tool for Evaluating Force Modernization...Force Takes Shape at Fort Bliss ,” Army Magazine, Vol. 57, No. 3, March 2007. Harvey, Francis J., and Peter J. Schoomaker, 2007 Army Posture

  1. Purohit's spectrophotometric method for determination of stability constants of complexes using Job's curves

    International Nuclear Information System (INIS)

    Purohit, D.N.; Goswami, A.K.; Chauhan, R.S.; Ressalan, S.


    A spectrophotometric method for determination of stability constants making use of Job's curves has been developed. Using this method stability constants of Zn(II), Cd(II), Mo(VI) and V(V) complexes of hydroxytriazenes have been determined. For the sake of comparison, values of the stability constants were also determined using Harvey and Manning's method. The values of the stability constants developed by two methods compare well. This new method has been named as Purohit's method. (author)

  2. Stable SU(5) monopoles with higher magnetic charge

    International Nuclear Information System (INIS)

    Miyamoto, S.; Sato, H.; Tomohiro, S.


    Taking into account the electroweak breaking effects, some multiply charged monopoles were shown to be stable by Gardner and Harvey. We give the explicit Ansa$uml: tze for finite-energy, nonsingular solutions of these stable higher-strength monopoles with eg = 1,(3/2),3. We also give the general stability conditions and the detailed behavior of the interaction potentials between two monopoles which produce the stable higher-strength monopoles

  3. Development of Ecological Toxicity and Biomagnification Data for Explosives Contaminants in Soil (United States)


    could develop at 500 mg kg-1 TNT in soil. Winfield et al. (1999) found that sunflower and sanfroin were the most sensitive species among ten species...up to 4000 mg kg-1 soil) during early life stage resulted in adverse responses in sensitive terrestrial plants such as sunflower and sanfroin. Bean...plants (Harvey et al., 1991; Best et al., 1999; Groom et al., 2002). Therefore, phytoremediation is a potential route for removing these EMs from soil

  4. The Role of Mitochondrial TCA Cycle Enzymes in Determining Prostate Cancer Chemosensitivity (United States)


    phosphorylation, Nat Rev Genet 2, 342-352. 17. Higgins , L. H., Withers, H. G., Garbens, A., Love, H. D., Magnoni, L., Hayward, S. W., and Moyes, C. D. (2009...MalateDehydrogenase 2ConfersDocetaxel Resistancevia Regulations of JNKSignaling andOxidativeMetabolism Qiong Liu, Chris T. Harvey, Hao Geng, Changhui...1036 Liuet al. The Prostate 40. Higgins LH, Withers HG, Garbens A, Love HD, Magnoni L, Hayward SW, Moyes CD. Hypoxia and the metabolic pheno- type of

  5. Factors Influencing Water Resource Governance among Pastoral Community at Mkondoa Sub-Catchment Morogoro Region Tanzania


    Yeremia Yohana Masifia; Sarone Ole Sena


    The importance of proper Water Resource Management with greater emphasis on ensuring sustainability quality accountability and community participation has become imminent as water resources increasingly become scarce Harvey et al 2007. Water resources management in Tanzania is governed under the National Water Policy of 2002 and Water Resources Management Act No.11 of year 2009. Other related legislations include Environmental Management Act No. 20 of year 2004 Forest Policy and Forest Act No...

  6. Fivebrane gravitational anomalies

    International Nuclear Information System (INIS)

    Becker, Katrin; Becker, Melanie


    Freed, Harvey, Minasian and Moore (FHMM) have proposed a mechanism to cancel the gravitational anomaly of the M-theory fivebrane coming from diffeomorphisms acting on the normal bundle. This procedure is based on a modification of the conventional M-theory Chern-Simons term. We apply the FHMM mechanism in the ten-dimensional type IIA theory. We then analyze the relation to the anomaly cancellation mechanism for the type IIA fivebrane proposed by Witten

  7. [Cardiology was born with the modern medical science]. (United States)

    de Micheli, Alfredo


    Modern medical science was born in the post-Renaissance age and began to consolidate towards the middle of the XVII century thanks to physicists, physiologists and biologists, most of whom were direct or indirect pupils of Galileo. The discovery of blood circulation by Harvey is now considered the only progress in physiology at the beginning of the XVII century, comparable to the current advances seen in physical sciences. The history of this exploit could be written from view point of the progressive advance in knowledge. In his experiments, Harvey referred to the authentic not imaginary experiments, and put forward irrefutable quantitative arguments. We can therefore claim that his discovery of blood circulation was the first proper explanation of an organic process and the starting point leading to experimental physiology. So it seems justified to assert that modern medical science did not all rise suddenly, but was gradually structured starting from the middle of the XVII century following the path traced by William Harvey in light of Galileo's thought. Copyright © 2014 Instituto Nacional de Cardiología Ignacio Chávez. Published by Masson Doyma México S.A. All rights reserved.

  8. CERN's Guardian Angels

    CERN Multimedia


    Any trouble at CERN? The Technical Control Room operates the entire technical infrastructure of CERN every day, all year long. They deal with problems that go from simple water leaks to devastating power cuts.   The Technical Control Room with Kenneth Olesen and Mark Harvey, minutes before their starting time. This big room is probably the liveliest at CERN, since there's always someone there, everyday, all year long. Laurent Randot and Eric Lienard working in the Technical Control Room at CERN in building 212. They've started at 7 a.m. and today has been a relatively quiet day. There have been some microcuts in the electric net because of the wind. But these have been repaired rather quickly... The relief: It's 2.30 p.m. Time for Laurent Randot and Eric Lienard to show their colleagues Mark Harvey and Kenneth Olesen what has been going on during the morning. They are the next TCR team of the day. Mark Harvey and Kenneth Olesen start their working day. They will work until 11p.m., when another team wil...

  9. Simulation of groundwater conditions and streamflow depletion to evaluate water availability in a Freeport, Maine, watershed (United States)

    Nielsen, Martha G.; Locke, Daniel B.


    In order to evaluate water availability in the State of Maine, the U.S. Geological Survey (USGS) and the Maine Geological Survey began a cooperative investigation to provide the first rigorous evaluation of watersheds deemed "at risk" because of the combination of instream flow requirements and proportionally large water withdrawals. The study area for this investigation includes the Harvey and Merrill Brook watersheds and the Freeport aquifer in the towns of Freeport, Pownal, and Yarmouth, Maine. A numerical groundwater- flow model was used to evaluate groundwater withdrawals, groundwater-surface-water interactions, and the effect of water-management practices on streamflow. The water budget illustrates the effect that groundwater withdrawals have on streamflow and the movement of water within the system. Streamflow measurements were made following standard USGS techniques, from May through September 2009 at one site in the Merrill Brook watershed and four sites in the Harvey Brook watershed. A record-extension technique was applied to estimate long-term monthly streamflows at each of the five sites. The conceptual model of the groundwater system consists of a deep, confined aquifer (the Freeport aquifer) in a buried valley that trends through the middle of the study area, covered by a discontinuous confining unit, and topped by a thin upper saturated zone that is a mixture of sandy units, till, and weathered clay. Harvey and Merrill Brooks flow southward through the study area, and receive groundwater discharge from the upper saturated zone and from the deep aquifer through previously unknown discontinuities in the confining unit. The Freeport aquifer gets most of its recharge from local seepage around the edges of the confining unit, the remainder is received as inflow from the north within the buried valley. Groundwater withdrawals from the Freeport aquifer in the study area were obtained from the local water utility and estimated for other categories. Overall

  10. Coleção de microalgas de ambientes dulciaquícolas naturais da Bahia, Brasil, como potencial fonte para a produção de biocombustíveis: uma abordagem taxonômica Collection of microalgae from natural freshwater environments of Bahia, Brazil, as a potential source for biofuel production: a taxonomic approach

    Directory of Open Access Journals (Sweden)

    Maria Cristina de Queiroz Mendes


    Full Text Available O presente trabalho envolveu a identificação taxonômica de espécies nativas de microalgas (isoladas de ecossistemas dulciaquícolas localizados nos arredores de Salvador, Bahia integrantes da Coleção de Microalgas dulciaquícolas do LABIOMAR/IB/UFBA, visando estudos taxonômicos mais aprofundados (ultraestruturais e moleculares e experimentos que possam avaliar sua capacidade para suprir cadeias produtivas de biocombustíveis. As coletas foram realizadas nos arredores de Salvador, Bahia, Brasil. A identificação das espécies foi efetuada com base em caracteres morfológicos. Foram identificados 19 táxons, 12 em nível de espécie e nove em nível de gênero, sendo 14 Chlorophyceae (Chlamydomonas sp1, Chlamydomonas sp2, Chlamydomonas sp3, Chlamydocapsa bacillus (Teiling Fott, Chlorococcum sp1, Chlorococcum sp2, Coelastrum indicum Turn.. Coelastrum microporum Nägeli, Desmodesmus brasiliensis (Bohl. Hegew, Scenedesmum obliquus (Turpin Kütz, Ankistrodesmus falcatus (Corda Ralfs, Ankistrodesmus fusiformis Corda, Kirchneriella lunaris (Kirchner. Möbius, Pseudokirchneriella subcapitata (Korshikov F. Hindák, três Trebouxiophyceae (Botryococcus braunii Kütz., Botryococcus terribilis Komárek et Marvan e Chlorella vulgaris Beijerinck, uma Bacillariophyceae (Nitzschia sp. e uma Cyanobacteria (Synechocystis sp..This study identified native species of microalgae (maintained at LABIOMAR/IB/UFBA Collection of Freshwater Microalgae to indicate their potential to supply the biofuel production chain. Samples were collected in freshwater ecosystems around Salvador, Bahia, Brazil. Species identification was based in morphological characteristics. Nineteen species were isolated and identified, 12 at the level of species and nine at the level of genus: 14 Chlorophyceae (Chlamydomonas sp1, Chlamydomonas sp2, Chlamydomonas sp3, Chlamydocapsa bacillus (Teiling Fott, Chlorococcum sp1, Chlorococcum sp2, Coelastrum indicum Turn. Coelastrum microporum N

  11. Evolution of the transfer function characterization of surface scatter phenomena (United States)

    Harvey, James E.; Pfisterer, Richard N.


    Based upon the empirical observation that BRDF measurements of smooth optical surfaces exhibited shift-invariant behavior when plotted versus    o , the original Harvey-Shack (OHS) surface scatter theory was developed as a scalar linear systems formulation in which scattered light behavior was characterized by a surface transfer function (STF) reminiscent of the optical transfer function (OTF) of modern image formation theory (1976). This shift-invariant behavior combined with the inverse power law behavior when plotting log BRDF versus log   o was quickly incorporated into several optical analysis software packages. Although there was no explicit smooth-surface approximation in the OHS theory, there was a limitation on both the incident and scattering angles. In 1988 the modified Harvey-Shack (MHS) theory removed the limitation on the angle of incidence; however, a moderate-angle scattering limitation remained. Clearly for large incident angles the BRDF was no longer shift-invariant as a different STF was now required for each incident angle. In 2011 the generalized Harvey-Shack (GHS) surface scatter theory, characterized by a two-parameter family of STFs, evolved into a practical modeling tool to calculate BRDFs from optical surface metrology data for situations that violate the smooth surface approximation inherent in the Rayleigh-Rice theory and/or the moderate-angle limitation of the Beckmann-Kirchhoff theory. And finally, the STF can be multiplied by the classical OTF to provide a complete linear systems formulation of image quality as degraded by diffraction, geometrical aberrations and surface scatter effects from residual optical fabrication errors.

  12. Fokker-Planck modeling of current penetration during electron cyclotron current drive

    International Nuclear Information System (INIS)

    Merkulov, A.; Westerhof, E.; Schueller, F. C.


    The current penetration during electron cyclotron current drive (ECCD) on the resistive time scale is studied with a Fokker-Planck simulation, which includes a model for the magnetic diffusion that determines the parallel electric field evolution. The existence of the synergy between the inductive electric field and EC driven current complicates the process of the current penetration and invalidates the standard method of calculation in which Ohm's law is simply approximated by j-j cd =σE. Here it is proposed to obtain at every time step a self-consistent approximation to the plasma resistivity from the Fokker-Planck code, which is then used in a concurrent calculation of the magnetic diffusion equation in order to obtain the inductive electric field at the next time step. A series of Fokker-Planck calculations including a self-consistent evolution of the inductive electric field has been performed. Both the ECCD power and the electron density have been varied, thus varying the well known nonlinearity parameter for ECCD P rf [MW/m -3 ]/n e 2 [10 19 m -3 ] [R. W. Harvey et al., Phys. Rev. Lett 62, 426 (1989)]. This parameter turns out also to be a good predictor of the synergetic effects. The results are then compared with the standard method of calculations of the current penetration using a transport code. At low values of the Harvey parameter, the standard method is in quantitative agreement with Fokker-Planck calculations. However, at high values of the Harvey parameter, synergy between ECCD and E parallel is found. In the case of cocurrent drive, this synergy leads to the generation of large amounts of nonthermal electrons and a concomitant increase of the electrical conductivity and current penetration time. In the case of countercurrent drive, the ECCD efficiency is suppressed by the synergy with E parallel while only a small amount of nonthermal electrons is produced

  13. Stalling Tropical Cyclones over the Atlantic Basin (United States)

    Nielsen-Gammon, J. W.; Emanuel, K.


    Hurricane Harvey produced massive amounts of rain over southeast Texas and southwest Louisiana. Average storm total rainfall amounts over a 10,000 square mile (26,000 square km) area exceeded 30 inches (750 mm). An important aspect of the storm that contributed to the large rainfall totals was its unusual motion. The storm stalled shortly after making landfall, then moved back offshore before once again making landfall five days later. This storm motion permitted heavy rainfall to occur in the same general area for an extended period of time. The unusual nature of this event motivates an investigation into the characteristics and potential climate change influences on stalled tropical cyclones in the Atlantic basin using the HURDAT 2 storm track database for 1866-2016 and downscaled tropical cyclones driven by simulations of present and future climate. The motion of cyclones is quantified as the size of a circle circumscribing all storm locations during a given length of time. For a three-day period, Harvey remained inside a circle with a radius of 123 km. This ranks within the top 0.6% of slowest-moving historical storm instances. Among the 2% of slowest-moving storm instances prior to Harvey, only 13 involved storms that stalled near the continental United States coast, where they may have produced substantial rainfall onshore while tapping into marine moisture. Only two such storms stalled in the month of September, in contrast to 20 September stalls out of the 36 storms that stalled over the nearby open Atlantic. Just four of the stalled coastal storms were hurricanes, implying a return frequency for such storms of much less than once per decade. The synoptic setting of these storms is examined for common features, and historical and projected trends in occurrences of stalled storms near the coast and farther offshore are investigated.

  14. Constraining Big Hurricanes: Remotely sensing Galveston Islands' changing coastal landscape from days to millennia (United States)

    Dougherty, A. J.; Choi, J. H.; Heo, S.; Dosseto, A.


    Climate change models forecast increased storm intensity, which will drive coastal erosion as sea-level rise accelerates with global warming. Over the last five years the largest hurricanes ever recorded in the Pacific (Patricia) and the Atlantic (Irma) occurred as well as the devastation of Harvey. The preceding decade was marked with Super Storm Sandy, Katrina and Ike. A century prior, the deadliest natural disaster in North America occurred as a category 4 hurricane known as `The 1900 Storm' hit Galveston Island. This research aims to contextualize the impact of storms long before infrastructure and historical/scientific accounts documented erosion. Unlike the majority of barrier islands in the US, Galveston built seaward over the Holocene. As the beach prograded it preserved a history of storms and shoreline change over millennia to the present-day. These systems (called prograded barriers) were first studied over 50 years ago using topographic profiles, sediment cores and radiocarbon dating. This research revisits some of these benchmark study sites to augment existing data utilizing state-of-the-art Light Detection and Ranging (LiDAR), Ground Penetrating Radar (GPR), and Optically Stimulated Luminescence (OSL) techniques. In 2016 GPR and OSL data were collected from Galveston Island, with the aim to combine GPR, OSL and LiDAR (GOaL) to extract a high-resolution geologic record spanning 6,000 years. The resulting millennia-scale coastal evolution can be used to contextualize the impact of historic hurricanes over the past century (`The 1900 Storm'), decade (Ike in 2008) and year (now with Harvey). Preliminary results reveal a recent change in shoreline behaviour, and data from Harvey are currently being accessed within the perspective of these initial findings. This dataset will be discussed with respect to the other two benchmark prograded barriers studied in North America: Nayarit Barrier (Mexico) that Hurricane Patricia passed directly over in 2013 and

  15. An N=2 dual pair and a phase transition

    International Nuclear Information System (INIS)

    Aspinwall, P.S.


    We carefully analyze the N=2 dual pair of string theories in four dimensions introduced by Ferrara, Harvey, Strominger and Vafa. The analysis shows that a second discrete degree of freedom must be switched on in addition to the known ''Wilson line'' to achieve a non-perturbatively consistent theory. We also identify the phase transition this model undergoes into another dual pair via a process analogous to a conifold transition. This provides the first known example of a phase transition which is understood from both the type II and the heterotic string picture. (orig.)

  16. Beams 92. Proceedings of the International Conference on High-Power Particle Beams (9th) held in Washington, DC on May 25-29 1992. Volume 2 (United States)


    Schumacher, J. Hyman, J. Santoru, R.M. Watkins, R.J. Harvey, F.A. Dolezal, R.L. Eisenhart , A.J. Schneider.......1637 THEORY OF THE INTERACTION OF...I theo . = 0.4 A measured deflections with the calculated values for 2.0 different probe beam energies. The best fit to the 1experimental data was...M.E. - 1715 Eisenhart R.L. - 1637 Fukuzawa T. - 627 Cook D.L. - 31 Ekdahl C. -1887 Furman E.G. - 1870 Cooksey N. - 203 Eliezer S. - 995 Furuuchi S

  17. Polémica em torno da liberdade da sexualidade: «liberdade de importunar» versus violências sexuais


    Cova, Anne


    Na sequência do escândalo que explodiu nos EUA em Outubro de 2017 envolvendo o produtor americano de cinema Harvey Weinstein, nasceram os hashtags #Balancetonporc e #MeToo que levaram dezenas de milhares de mulheres a testemunhar sobre as violências sexuais. No Twitter, #Balancetonporc foi lançado no dia 13 de Outubro por uma jornalista francesa, Sandra Muller, e dois dias depois a atriz americana, Alyssa Milano, tomou uma iniciativa semelhante com #MeToo. O efeito bola de neve das redes soci...

  18. The Shaky Game

    CERN Document Server

    Fine, Arthur


    In this new edition, Arthur Fine looks at Einstein's philosophy of science and develops his own views on realism. A new Afterword discusses the reaction to Fine's own theory."What really led Einstein . . . to renounce the new quantum order? For those interested in this question, this book is compulsory reading."-Harvey R. Brown, American Journal of Physics"Fine has successfully combined a historical account of Einstein's philosophical views on quantum mechanics and a discussion of some of the philosophical problems associated with the interpretation of quantum theory with a discussion of some

  19. Kiriku ülestõstmisest / Veronika Valk

    Index Scriptorium Estoniae

    Valk, Veronika, 1976-


    Kiriku korrastamiseks ja tööshoidmiseks napib tihti raha. Eesti luteri kogudused vajavad abi. Uutest kirikukelladest Eestis, kellamängudest. Näiteid nüüdiskunstist mahajäetud kirikutes. Melbourne´i festivali raames 2010. a. näitas Bill Viola oma videokunsti Parkville´i St. Carthage´i katoliku kirikus. Londonis 2006. a. Michael Crossi kirikusse loodud teosest "Bridge". Briti kunstnike Heather Ackroydi ja Dan Harvey poolt Dilston Grove'i kirikusse Londonis 2003. a. loodud vertikaalse murukasvatuse projektist

  20. Topological charge and chiral anomalies in Fermi superfluids

    International Nuclear Information System (INIS)

    Stone, M.; Gaitan, F.


    We review some of the topological properties of Fermi superfluids, in particular the persistent currents in superfluid 3 He. We show that the topological charge formalism developed by Garg et al. is related to the chiral anomaly viewpoint of Volovik and co-workers through the Callan--Harvey effect. We stress that the question of the existence of a ''twist'' term in the current induced by a texture is a history-dependent phenomenon which depends on how the textures are envisaged as being created. copyright 1987 Academic Press, Inc

  1. Abstracts from the 5th International Conference for Healthcare and Medical Students (ICHAMS)


    Sweeney, Yvonne; O?Neill, Hugh; Duffy, Garry; Creegan, Daniel; Bustos, Viviana; Harvey, Brian J.; Dalphy, Alexander; O?Grady, Anthony; Kay, Elaine; Samelska, Katarzyna; Izdebska, Justyna; Kurowska, Anna; Al-Zubaidy, Rena; Mroz, Magdalena; Harvey, Brian


    Table of contents O1: Assessing the protective effect of dexrazoxane against doxorubicin-induced toxicity in HL-1 cardiomyocytes Yvonne Sweeney, Hugh O?Neill, Garry Duffy O2: Role of KCNQ1 in epithelial barrier repair Daniel Creegan, Viviana Bustos, Brian J. Harvey O3: The suitability of non-small cell lung cancer cytology preparations for the analysis of anaplastic lymphoma kinase gene rearrangements Alexander Dalphy, Anthony O?Grady, Elaine Kay O4: Penetrating keratoplasty and descemet?s st...

  2. Statens livsnødvendige cirkulation

    DEFF Research Database (Denmark)

    Hein Jessen, Mathias


    The article analyzes the role of trade in the constitution of the modern state in 17th century England. The article focuses on the metaphor of the body politic and especially the ideas on circulation from William Harvey and how these can be used to analyze Thomas Hobbes’ ideas on trade...... and circulation in Leviathan and the economic thought of William Petty. Harvey’s thoughts on circulation were revolutionary and highly influential on the political and economic thoughts of the time. Even though Hobbes is mainly focused on law and sovereignty, he still characterizes circulation and trade...

  3. Calculating economy-wide energy intensity decline rate: The role of sectoral output and energy shares

    International Nuclear Information System (INIS)

    Baksi, Soham; Green, Chris


    We specify formulas for computing the rate of decline in economy-wide energy intensity by aggregating its two determinants-technical efficiency improvements in the various sectors of the economy, and shifts in economic activity among these sectors. The formulas incorporate the interdependence between sectoral shares, and establish a one-to-one relation between sectoral output and energy shares. This helps to eliminate future energy intensity decline scenarios which involve implausible values of either sectoral share. An illustrative application of the formulas is provided, using within-sector efficiency improvement estimates suggested by Lightfoot-Green and Harvey

  4. The p21 ras C-terminus is required for transformation and membrane association

    DEFF Research Database (Denmark)

    Willumsen, B M; Christensen, A; Hubbert, N L


    The Harvey murine sarcoma virus (Ha-MuSV) transforming gene, v-rasH, encodes a 21,000 molecular weight protein (p21) that is closely related to the p21 proteins encoded by the cellular transforming genes of the ras gene family. The primary translation product (prop21), which is found in the cytosol...... of these biochemical features of the protein, we have now studied a series of deletion mutants located at or near the C-terminus of the viral p21 protein. Our tissue culture studies indicate that amino acids located at or near the C-terminus are required for cellular transformation, membrane association and lipid...

  5. Complementation of Myelodysplastic Syndrome Clones with Lentivirus Expression Libraries (United States)


    Description HRAS Homo sapiens v-Ha-ras Harvey rat sarcoma viral oncogene homolog (HRAS), transcript 1 CDC25C Homo sapiens cell division cycle 25...homolog C (CDC25C), transcript variant 1 MYC Homo sapiens v-myc myeloctomatosis viral oncogene homolog (avian) (MYC) MAP3K7 Homo sapiens mitogen...activated protein kinase kinase kinase 7 (MAP3K7) MAP3K8 Homo sapiens mitogen-activated protein kinase kinase kinase 8 (MAP3K8) SF3B1 Homo sapiens

  6. Turbulence model comparisons for a low pressure 1.5 stage test turbine

    CSIR Research Space (South Africa)

    Dunn, Dwain I


    Full Text Available as originally tested. Thus the blade profile at the hub is the same as in the Durham cascade, but the profile at the tip differs to account for rotation. More about the Durham cascade setup and geometry can be found in Harvey et al. [25], Hartland et al... Harada. Suppression of secondary flows in turbine nozzle with controlled stacking shape and exit circulation by 3D inverse design method. ASME 99-GT-72, 1999. [18] AT Lethander, KA Thole, GA Zess, and J Wagner. Optimizing the vane-endwall junction...



    Daniel Arthur Lisboa de Vasconcelos; Edson José Gouveia Bezerra


    O presente artigo, de caráter ensaístico, visa a contribuir com reflexões sobre modernidade, turismo e campo social sociais no Estado de Alagoas - Brasil. Utilizando o referencial de autores como Giddens (2001), Jameson (2002) e Harvey (1992), dentre outros, sintetizaremos algumas características das transições socioculturais da modernidade para o atual estágio do modo de produção capitalista, período que muitos têm considerado como a “pós-modernidade”. Posteriormente, empreenderemos breve de...

  8. Gas Transport Through Channels (United States)


    van Zijl, P. C. M., Zeidel, M. L., and Agre, P. (1996) Functional analysis of aquaporin 1-deficient red cells. The Colton null phenotype. /. cytosolic NrVNH4 +. A new analysis of the effects of NH3 vs. NH4 + fluxes on pHs R. Musa-Aziz L.-M. Chen W. F. Boron Department of... tannins in the algae Spirogyra—demonstrated that it is NH< rather than NH4 + that readily crosses the cell membrane. Later, Warburg (1922), Harvey (1911

  9. Simulation-guided cardiac auscultation improves medical students' clinical skills: the Pavia pilot experience. (United States)

    Perlini, Stefano; Salinaro, Francesco; Santalucia, Paola; Musca, Francesco


    Clinical evaluation is the cornerstone of any cardiac diagnosis, although excessive over-specialisation often leads students to disregard the value of clinical skills, and to overemphasize the approach to instrumental cardiac diagnosis. Time restraints, low availability of "typical" cardiac patients on whom to perform effective bedside teaching, patients' respect and the underscoring of the value of clinical skills all lead to a progressive decay in teaching. Simulation-guided cardiac auscultation may improve clinical training in medical students and residents. Harvey(©) is a mannequin encompassing more than 50 cardiac diagnoses that was designed and developed at the University of Miami (Florida, USA). One of the advantages of Harvey(©) simulation resides in the possibility of listening, comparing and discussing "real" murmurs. To objectively assess its teaching performance, the capability to identify five different cardiac diagnoses (atrial septal defect, normal young subject, mitral stenosis with tricuspid regurgitation, chronic mitral regurgitation, and pericarditis) out of more than 50 diagnostic possibilities was assessed in 523 III-year medical students (i.e. at the very beginning of their clinical experience), in 92 VI-year students, and in 42 residents before and after a formal 10-h teaching session with Harvey(©). None of them had previously experienced simulation-based cardiac auscultation in addition to formal lecturing (all three groups) and bedside teaching (VI-year students and residents). In order to assess the "persistence" of the acquired knowledge over time, the test was repeated after 3 years in 85 students, who did not repeat the formal 10-h teaching session with Harvey(©) after the III year. As expected, the overall response was poor in the "beginners" who correctly identified 11.0 % of the administered cardiac murmurs. After simulation-guided training, the ability to recognise the correct cardiac diagnoses was much better (72.0 %; p

  10. The Effects Of International Integration On Cost Of Equity: Application Of Turkey’s Tourism Sector


    Demir, Sezgin; Kaderli, Yasemin Coşkun


    In this paper, the cost of equities of the companies listed in the BISTTRZM index in BORSAİSTANBUL were computed by using models which are based on the Capital Asset Pricing Model (CAPM). The results of models using local data were compared with the results of models using global data. Thus the effect of Turkey’s integration of international capital market on the cost of equity was measured. Local and Global Capital Asset Pricing Model (CAPM), Multifactor Global CAPM, Bekaert – Harvey Mixtur...

  11. f-Ratios calculated with and without urea uptake in nitrogen uptake by phytoplankton

    Digital Repository Service at National Institute of Oceanography (India)

    Wafar, M.V.M.; Corre, P.L.; L'Helguen, S.

    . Peterson (1979) Particulate organic matter Hux and planktonic new production in the deep ocean. Nature, 282,677-6X0. Epplcy R. W., .I. H. Sharp, E. H. Renger, M. J. Perry and W. G. Harrison (1977) Nitrogen assimilation by phytoplankton and other... f’rogress Serres. 67, 275-2X3. Harrison W. G.. I_. R. Harris, D. M. Karl. G. A. Knauer and D. G. Redaljc (1992) Nitrogen dynamics at the Vcrtcx time-series site. DeepSea Revearch. 39, 1.535-1557. Harvey W. A. and J. Caperon (1976) The rate...

  12. A feasibility study of continuous hyperfractionated accelerated radiotherapy (CHART) and brachytherapy in patients with early oral or oropharyngeal carcinomas

    International Nuclear Information System (INIS)

    Goodchild, K.; Hoskin, P.; Dische, S.; Pigott, K.; Powell, M.; Saunders, M.


    Overall time is important in the curative treatment of head and neck cancer (Dische, S., Saunders, M.I., Barrett, A., Harvey, A., Gibson, D., Parmar, M., 1997, Radiother. Oncol., 44:123-136). Results are presented on outcome and morbidity in ten patients with head and neck cancer treated with external beam irradiation (CHART protocol) and interstitial implantation, completing treatment in 12 days. Local control and overall survival at 5 years was 67%. Acute and late morbidity was acceptable giving scope for dose escalation. (Copyright (c) 1999 Elsevier Science B.V., Amsterdam. All rights reserved.)

  13. Semiclassical approach to black hole evaporation

    International Nuclear Information System (INIS)

    Lowe, D.A.


    Black hole evaporation may lead to massive or massless remnants, or naked singularities. This paper investigates this process in the context of two quite different two-dimensional black hole models. The first is the original Callan-Giddings-Harvey-Strominger (CGHS) model, the second is another two-dimensional dilaton-gravity model, but with properties much closer to physics in the real, four-dimensional, world. Numerical simulations are performed of the formation and subsequent evaporation of black holes and the results are found to agree qualitatively with the exactly solved modified CGHS models, namely, that the semiclassical approximation breaks down just before a naked singularity appears

  14. Energy efficient lighting in the retail sector

    Energy Technology Data Exchange (ETDEWEB)



    This Good Practice Guide gives details on how energy efficient lighting can be incorporated in the brief for a lighting consultant or contractor. The advantages of energy efficiency are highlighted, and the lighting of retail stores, the introduction of energy efficiency measures, and the application of good practice are discussed. Case studies of W H Smith, Cambridge, Tesco Stores, Boots plc, the Harvey Centre, Harlow, and the National Westminster Bank plc are presented. A guide for senior executives and specialists in lighting design is also included. (UK)

  15. The Power of Comparative Physiology: Evolution, Integration and Applied (United States)


    and olive ridley marine turtle hatchlings. T.T. Jones, R.R. Reina Symposium and P.L. Lutz. Florida Atlantic Univ., Boca 44.0 REGULATION OF VERTEBRATE... preference of 16[deg]C acclimated emabs was a genseralist woodrat, with a choice bersween control anod 50% juniper diet under Wsarm (26 1 4.6fdeg]C and thsey...and Olive Ridley Marine Turtle Harvey B. Lillywhite’, Jaishri G. Mceon2, Gopinathan K. Menon’. Ming C. Tuo: ’University, Hatchllngs of Florida

  16. Recent Atlantic Hurricanes, Pacific Super Typhoons, and Tropical Storm Awareness in Underdeveloped Island and Coastal Regions (United States)

    Plondke, D. L.


    Hurricane Harvey was the first major hurricane to make landfall in the continental U.S. in 12 years. The next tropical storm in the 2017 Atlantic Hurricane Season was Hurricane Irma, a category 5 storm and the strongest storm to strike the U.S. mainland since Hurricane Wilma in 2005. These two storms were the third and fourth in a sequence of 10 consecutive storms to reach hurricane status in this season that ranks at least seventh among the most active seasons as measured by the Accumulate Cyclone Energy (ACE) index. Assessment of damage from Harvey may prove it to be the costliest storm in U.S. history, approaching $190 billion. Irma was the first category 5 hurricane to hit the Leeward Islands, devastating island environments including Puerto Rico, the Virgin Islands, Barbuda, Saint Barthelemy, and Anguilla with sustained winds reaching at times 185 mph. Together with the two super typhoons of the 2017 Pacific season, Noru and Lan, the two Atlantic hurricanes rank among the strongest, longest-lasting tropical cyclones on record. How many more billions of dollars will be expended in recovery and reconstruction efforts following future mega-disasters comparable to those of Hurricanes Harvey and Irma? Particularly on Caribbean and tropical Pacific islands with specialized and underdeveloped economies, aging and substandard infrastructure often cannot even partially mitigate against the impacts of major hurricanes. The most frequently used measurements of storm impact are insufficient to assess the economic impact. Analysis of the storm tracks and periods of greatest storm intensity of Hurricanes Harvey and Irma, and Super Typhoons Lan and Noru, in spatial relationship with island and coastal administrative regions, shows that rainfall totals, flooded area estimates, and property/infrastructure damage dollar estimates are all quantitative indicators of storm impact, but do not measure the costs that result from lack of storm preparedness and education of residents

  17. Oxygen minimum seafloor ecological (mal) functioning

    Digital Repository Service at National Institute of Oceanography (India)

    Moodley, L.; Nigam, R.; Ingole, B.S.; PrakashBabu, C.; Panchang, R.; Nanajkar, M.; Sivadas, S.; van Breugel, P.; van Ijzerloo, L.; Rutgers, R.; Heip, C.H.R.; Soetaert, K.; Middelburg, J.J.

    OM transformation is hampered (“batteries not included”, Lane 2006) resulting in rapid/immediate OM transfer out of the fast- biological cycle into the “slow (geological)” carbon cycle. From a biogeochemical point of view, the question of what..., N., 2006. Batteries not included, what can’t bacteria do? Nature, 441, 274-277. Law, G.T.W., Shimmield, T.M., Shimmield, G.B., Cowie, G.L. Breuer, E.R., Harvey, S.M., 2009. Manganese, iron, and sulphur cycling on the Pakistan margin. Deep Sea...

  18. Autism and genetics: Clinical approach and association study with two markers of HRAS gene

    Energy Technology Data Exchange (ETDEWEB)

    Herault, J.; Petit, E.; Cherpi, C. [Laboratoire de Biochimie Medicale, Tours (France)] [and others


    Twin studies and familial aggregation studies indicate that genetic factors could play a role in infantile autism. In an earlier study, we identified a possible positive association between autism and a c-Harvey-ras (HRAS) oncogene marker at the 3{prime} end of the coding region. In an attempt to confirm this finding, we studied a larger population, well-characterized clinically and genetically. We report a positive association between autism and two HRAS markers, the 3{prime} marker used in the initial study and an additional marker in exon 1. 46 refs., 1 fig., 2 tabs.

  19. Field Demonstration of Propane Biosparging for In Situ Remediation of N-Nitrosodimethylamine (NDMA) in Groundwater (United States)


    ER-200828 DECEMBER 2015 Paul B. Hatzinger, Ph.D. David Lippincott, P.G. CB&I Federal Services, LLC. Distribution Statement A This...Neil Harvey, Paul Weinhardt, and Sheryl Streger of CB&I were vital to project success. Their efforts ultimately lead to the quality experimental...Annable, M.D., K. Hatfield, J. Cho, H. Klammler, B.L. Parker, J.A. Cherry , and P.S.C. Rao. 2005. Field-scale evaluation of the passive flux meter

  20. Excel 2013 all-in-one for dummies

    CERN Document Server

    Harvey, Greg


    The comprehensive reference, now completely up-to-date for Excel 2013! As the standard for spreadsheet applications, Excel is used worldwide - but it's not always user-friendly. However, in the hands of veteran bestselling author Greg Harvey, Excel gets a whole lot easier to understand! This handy all-in-one guide covers all the essentials, the new features, how to analyze data with Excel, and much more. The featured minibooks address Excel basics, worksheet design, formulas and functions, worksheet collaboration and review, charts and graphics, data management, data analysis, and

  1. [From Vesalius to Descartes: the heart, the life]. (United States)

    Bitbol-Hespériès, Annie


    At the end of 1629, Descartes, settled in the Lower Countries, began studying anatomy and performing dissections in order to write L'Homme (The Treatise on Man). He acknowledged his debt towards "Vezalius and the others". In those years, in Europe, the influence of Vesalius was increasing, as shown by Rembrandt's Anatomy of Dr Tulp and by the Theatrum anatomicum by Caspar Bauhin. Descartes rejected the divisions of the soul, then a common place in medical treatises, and he stated a principle of life defined by the heath in the heart linked to the new demonstration of the circulation of the blood by William Harvey.

  2. Darning, doylies and dancing: the work of the Leeds Association of Girls' Clubs (1904-1913). (United States)

    Jones, Helen M F


    The Leeds Association of Girls' Clubs (LAGC) was set up by a group of women, including Hilda Hargrove, Dr Lucy Buckley and Mary and Margaret Harvey, to promote collaboration between the city's girls' clubs. The organisation epitomised women working in partnership whilst reflecting their differing philanthropic and political interests. However LAGC's collaborative approach resulted in liberal consensus which downplayed the significance of girls' working conditions. Throughout the decade LAGC's focus was its annual competitions. These featured utilitarian and decorative handicrafts (darning and doylies) enshrining both frugality and aspiration, alongside dance and drill which channelled girls' vigour. Nevertheless, LAGC's resilience resulted in an organisation which is still in existence.

  3. Older Workers in the Market for Part-Time Employment. Appendices to PP 396. (United States)


    Ehrenberg, R.G., Fringe Benefits and Overtime Behavior. Lexington, 1971. Levis, H. G., "Interes del Employeador en las Horas de Tobajo del Empleado...34 "The Employer Interest in Employees’ Hours of Work," Cuadernos de Economia , 18 (1969), pp. 38-54, summarized in Rosen, Harvey, reference below. Owen...just tangential to the g(h) function. The next question is: Which factors shift the optimum combination of h and c? C-I D * .k=* ~ .... LA A U..~..’ 4 g

  4. The Dream Of Becky Brandon Found In Mini Shopaholic


    Ginting, Hetty Meilany


    This paper entitled. “The Dream of Becky Brandon Found in Mini Shopaholic”. Novel is one kind prose’s narrative portrays character and presenting and organized series of event of setting. Becky Brandon is the main character . She thinks that being a mother is easy , and his daughter will be a shopping friend for life ! But Minnie is only two years turned out to have a different approach to shopping . She often screamed " Mineee ! " Indiscriminately , creating chaos from Harrods to Harvey Nich...

  5. The distribution of blood eosinophil levels in a Japanese COPD clinical trial database and in the rest of the world


    Barnes, Neil; Ishii, Takeo; Hizawa, Nobuyuki; Midwinter, Dawn; James, Mark; Hilton, Emma; Jones, Paul W


    Neil Barnes,1,2 Takeo Ishii,3,4 Nobuyuki Hizawa,5 Dawn Midwinter,6 Mark James,3 Emma Hilton,1 Paul Jones1,71Respiratory Medicine Franchise, GlaxoSmithKline, Brentford, UK; 2William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, London, UK; 3Medical Affairs, GlaxoSmithKline K.K., Tokyo, Japan; 4Graduate School of Medicine, Nippon Medical School, Tokyo, Japan; 5Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; 6Globa...

  6. Areeni aasta albumid 2004. Personaalsed tipud / Erkki Tero

    Index Scriptorium Estoniae

    Tero, Erkki


    Heliplaatidest: Vaiko Eplik ja Eliit "2: Aastaajad", LCD Soundsystem "Sound of Silver", Arcade Fire "Neon Bible", M.I.A "Kala", Burial "Untrue", Chalice "Taevas ja Perse", Panda Bear "Person Pitch", Ans. Andur "Topeltvikerkaar", Animal Collective "Strawberry Jam", PJ Harvey "White Chalk", Devendra Banhart "Smokey Rolls Down The Thunder Canyon", Kreatiivmootor "Irratsionaalne", Holy Fuck "LP", 3 Pead "Ilusaim heli", Throbbing Gristle "Part Two: The Endless Not", Battles "Mirrored", Kings Of Leon "Because of the Times", Robert Wyatt "Comicopera", National "Boxer", Simian Mobile Disco "Attack Decay Sustain Release"

  7. Diversity of Antifungal Compounds-Producing Bacillus spp. Isolated from Rhizosphere of Soybean Plant Based on ARDRA and 16S rRNA

    Directory of Open Access Journals (Sweden)



    Full Text Available Plant growth promoting rhizobacteria (PGPR play an important role in improvement of seed germination, root development, and water utilization by plants. These rhizobacteria can stimulate plant growth directly by producing growth hormones or indirectly by producing antifungal compounds/antibiotics to suppress phytopathogenic fungi. The objective of this research was to analyze the diversity of 22 antifungal-producing rhizobacteria of Bacillus sp. isolated from rhizosphere of soybean plant based on Amplified rDNA Restriction Analysis (ARDRA and 16S rRNA Sequence. Restriction enzymes in ARDRA analysis, HinfI, HaeIII, and RsaI were used to digest 22 16S rDNA amplified from Bacillus sp. genomes. Based on this analysis, genetic diversity of 22 Bacillus sp. producing antifungal compounds were classified into eight different groups. Moreover, six selected isolates randomly from each ARDRA group that have strong activity to suppress fungal growth were analyzed for their 16S rDNA sequences compared with reference strains. The distributions of these isolates were genetically diverse on several species of Bacillus sp. such as B. subtilis, B. cereus, and B. fusiformis. ARDRA is a reliable technique to analyze genetic diversity of Bacillus sp. community in the rhizosphere.

  8. Analysis of the Appendicularia class (subphylum Urochordata) as a possible tool for biomonitoring four estuaries of the tropical region. (United States)

    de Carvalho, Pedro Freitas; Bonecker, Sérgio Luiz Costa; Nassar, Cristina Aparecida Gomes


    This study aims to characterize the differences between physical and chemical parameters of water quality indicators and eutrophication in four estuaries of the state of Rio de Janeiro and relate them to full density of the species that belong to the Appendicularia class with the purpose of seeking bioindicators for estuarine areas. The estuaries studied were from the rivers Macaé, São João, Bracuí, and Perequê-Açu. The physicochemical parameters monitored for evaluation of the water bodies and used for the correlation with the appendicularians were pH, temperature, nitrite, nitrate, N-ammonia, total nitrogen, phosphate, total phosphorus, dissolved oxygen (DO), suspended particulate matter (SPM), chlorophyll a, heterotrophic bacteria, and fecal coliform. The estuaries Bracuí and São João showed enhanced qualities of water and lower degrees of eutrophication than Macae and Perequê-Açu estuaries. The species of the Appendicularia class found in this study were Oikopleura longicauda (Vogt, 1854), Oikopleura dioica Fol, 1872, Oikopleura fusiformis Fol, 1872, and Fritillaria haplostoma Fol, 1872. The density of appendicularians and O. longicauda was inversely related to the nutrient values and SPM; nonetheless, no species of appendicularians could be used as a bioindicator of any estuary in the current study. Studies on the quality of estuary waters and the search for other bioindicators belonging to other zooplankton groups are recommended to confirm the obtained results and to expand the knowledge of these coastal environments.

  9. Cytotoxic effect of microbial biosurfactants against human embryonic kidney cancerous cell: HEK-293 and their possible role in apoptosis. (United States)

    Pradhan, Arun Kumar; Pradhan, Nilotpala; Mohapatra, Purusottam; Kundu, Chanakya Nath; Panda, Prasanna Kumar; Mishra, Barada Kanta


    Two different microbial biosurfactants S9BS and CHBS were isolated from Lysinibacillus fusiformis S9 and Bacillus tequilensis CH. Cytotoxicity effect of these biosurfactants on human embryonic kidney cancerous cell (HEK-293) were studied with the help of 3-(4,5-dimethylthiazol-2yl-)-2, 5-diphenyl tetrazolium bromide (MTT) assay and morphological changes were observed under inverted microscope. The biosurfactants exhibited positive cytotoxic effect on HEK-293 cell line. It was found that LC50 of S9BS and CHBS were 75 and 100 μg ml(-1), respectively. Further cell cycle and apoptosis analysis of biosurfactant-treated HEK-293 cell line were done by FACS. In this study, cytotoxic effect of glycolipid biosurfactant against HEK-293 cell lines is reported for the first time. Mechanism towards increased membrane permeability of biosurfactant-treated cancer cell may be the incorporation of its lipid moiety into the plasma membrane leading to formation of pores and membrane disruption. Hence, these microbial biosurfactants can prove to be significant biomolecule for cancer treatment.

  10. Characterization of biosurfactants from indigenous soil bacteria recovered from oil contaminated sites. (United States)

    Kumar, Govind; Kumar, Rajesh; Sharma, Anita


    Three bacterial isolates (G1, G2 and G3) characterized as Pseudomonas plecoglossicida, Lysinibacillus fusiformis and Bacillus safensis were recovered from contaminated soil of oil refinery. These bacterial isolates produced biosurfactants in MSM medium in stationary phase. Biosurfactants were characterized on the basis of their emulsifying properties with petrol, diesel, mobil oil and petrol engine oil. Reduction in surface tension (below 40 mN m(-1)) and blood hemolysis were also included in biosurfactants characterization. Emulsification indices of G1, G2 and G3 were in the range of 98.82, 23.53 and 58.82 for petrol; 29.411,1.05 and 70.588 for diesel; 35.31, 2.93 and 17.60 for mobil oil and 35.284, 58.82 and 17.647 for petrol engine oil respectively. Dry weight of the extracted biosurfactant was 4.6, 1.4 and 2.4 g I(-1) for G1, G2 and G3 respectively. Structural analysis of the biosurfactants by Fourier Transform Infrared Spectroscopy (FTIR) revealed significant differences in the bonding pattern of individual biosurfactant.

  11. Enzymatic and antagonistic potential of bacteria isolated from typical fruit of Cerrado in Minas Gerais State, Brazil

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    Cristina Ferreira Silva


    Full Text Available Brazil has great biodiversity, which is observed in the Cerrado biome of the tropical Brazilian savanna. The objectives of this study were to isolate and identify bacteria from Psychotria hoffmannseggiana with potential cellulase and pectinase production and with antagonistic activity against Aspergillus carbonarius, an Ochratoxin A (OTA producer. Ripe fruit were collected in the region of Passos City in the preserved Cerrado area in Minas Gerais State, Brazil. Serial dilutions were performed, and the bacteria isolated were biochemically characterized and identified by sequencing. To analyze the production of enzymes, the bacteria were cultivated in CMC and pectinase media. The better enzyme producers were optimized for production. Assays on the antagonistic activity for growth and sporulation were carried out in co-culture (bacteria and filamentous fungi. TLC was performed to verify the mycotoxin production. The predominant microbiota were Gram-negative bacteria belonging to the Enterobacteriaceae family. Some isolates showed potential for enzymatic and antagonistic activity, especially the isolate identified as Lysinibacillus fusiformis. This species was a better producer of cellulases (maximum activity: 103.1 mg glucose min.-1 mg-1 protein. In conclusion, the bacteria isolated from Psychotria hoffmannseggiana showed biotechnological potential for agro-industry and the environmental aspect.

  12. Embryonic chirality and the evolution of spiralian left–right asymmetries (United States)


    The group Spiralia includes species with one of the most significant cases of left–right asymmetries in animals: the coiling of the shell of gastropod molluscs (snails). In this animal group, an early event of embryonic chirality controlled by cytoskeleton dynamics and the subsequent differential activation of the genes nodal and Pitx determine the left–right axis of snails, and thus the direction of coiling of the shell. Despite progressive advances in our understanding of left–right axis specification in molluscs, little is known about left–right development in other spiralian taxa. Here, we identify and characterize the expression of nodal and Pitx orthologues in three different spiralian animals—the brachiopod Novocrania anomala, the annelid Owenia fusiformis and the nemertean Lineus ruber—and demonstrate embryonic chirality in the biradial-cleaving spiralian embryo of the bryozoan Membranipora membranacea. We show asymmetric expression of nodal and Pitx in the brachiopod and annelid, respectively, and symmetric expression of Pitx in the nemertean. Our findings indicate that early embryonic chirality is widespread and independent of the cleavage programme in the Spiralia. Additionally, our study illuminates the evolution of nodal and Pitx signalling by demonstrating embryonic asymmetric expression in lineages without obvious adult left–right asymmetries. This article is part of the themed issue ‘Provocative questions in left–right asymmetry’. PMID:27821523

  13. Species-specific separation of lake plankton reveals divergent food assimilation patterns in rotifers. (United States)

    Burian, Alfred; Kainz, Martin J; Schagerl, Michael; Yasindi, Andrew


    1. The analysis of functional groups with a resolution to the individual species level is a basic requirement to better understand complex interactions in aquatic food webs. Species-specific stable isotope analyses are currently applied to analyse the trophic role of large zooplankton or fish species, but technical constraints complicate their application to smaller-sized plankton. 2. We investigated rotifer food assimilation during a short-term microzooplankton bloom in the East African soda lake Nakuru by developing a method for species-specific sampling of rotifers. 3. The two dominant rotifers, Brachionus plicatilis and Brachionus dimidiatus , were separated to single-species samples (purity >95%) and significantly differed in their isotopic values (4.1‰ in δ 13 C and 1.5‰ in δ 15 N). Bayesian mixing models indicated that isotopic differences were caused by different assimilation of filamentous cyanobacteria and particles plicatilis (48%), whereas it was hardly ingested by B. dimidiatus . Overall, A . fusiformis was, relative to its biomass, assimilated to small extents, demonstrating a high grazing resistance of this species. 5. In combination with high population densities, these results demonstrate a strong potential of rotifer blooms to shape phytoplankton communities and are the first in situ demonstration of a quantitatively important direct trophic link between rotifers and filamentous cyanobacteria.

  14. Plankton community and the relationship with the environment in saline lakes of Onon-Torey plain, Northeastern Mongolia. (United States)

    Afonina, Ekaterina Yu; Tashlykova, Natalya A


    The plankton community of sixteen saline lakes located on Onon-Torey plain (Northeastern Mongolia) during the filling phase and the raising of the water level was investigated in July 2011. Thirty-five taxa of phytoplankton and thirty-one species of zooplankton were found. For phytoplankton, blue-green algae ( Merismopedia elegans , Anabaenopsis elenkinii , Arthrospora fusiformis , Spirulina major , Lyngbya sp., Oscillatoria sp.) and green algae ( Monoraphidium minutum , Tetrastrum komarekii , Ankyra ocellata , Oocystis sp.) were dominant. For zooplankton, Filinia longiseta, Brachionus plicatilis , B. variabilis , Hexarthra mira (Rotifera), Daphnia magna , Moina brachiata , M. mongolica (Cladocera), Arctodiaptomus bacillifer , Mixodiaptomus incrassatus , Metadiaptomus asiaticus (Copepoda) dominated. Mineralization, active hydrogen ratio, dissolved oxygen and water temperature were the main factors influencing the diversity, structure and distribution of plankton organisms in the steppe lakes during low water level. The RDA analysis for phytoplankton and zooplankton from different lakes was carried out for selected two groups which included lakes and a subset related species. The first group is of oligohaline and mesohaline lakes in which mostly green algae, rotifers and copepods inhabit. The second group is of mesohaline and polyhaline lakes with mainly blue-green algae , some crustaceans and rotifers inhabiting. High abundance and biomass of Spirulina major , Oscillatoria sp. and Brachionus variabilis were observed in lakes with high mineralization, pH and temperature.

  15. Plankton community and the relationship with the environment in saline lakes of Onon-Torey plain, Northeastern Mongolia

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    Ekaterina Yu. Afonina


    Full Text Available The plankton community of sixteen saline lakes located on Onon-Torey plain (Northeastern Mongolia during the filling phase and the raising of the water level was investigated in July 2011. Thirty-five taxa of phytoplankton and thirty-one species of zooplankton were found. For phytoplankton, blue-green algae (Merismopedia elegans, Anabaenopsis elenkinii, Arthrospora fusiformis, Spirulina major, Lyngbya sp., Oscillatoria sp. and green algae (Monoraphidium minutum, Tetrastrum komarekii, Ankyra ocellata, Oocystis sp. were dominant. For zooplankton, Filinia longiseta, Brachionus plicatilis, B. variabilis, Hexarthra mira (Rotifera, Daphnia magna, Moina brachiata, M. mongolica (Cladocera, Arctodiaptomus bacillifer, Mixodiaptomus incrassatus, Metadiaptomus asiaticus (Copepoda dominated. Mineralization, active hydrogen ratio, dissolved oxygen and water temperature were the main factors influencing the diversity, structure and distribution of plankton organisms in the steppe lakes during low water level. The RDA analysis for phytoplankton and zooplankton from different lakes was carried out for selected two groups which included lakes and a subset related species. The first group is of oligohaline and mesohaline lakes in which mostly green algae, rotifers and copepods inhabit. The second group is of mesohaline and polyhaline lakes with mainly blue-green algae, some crustaceans and rotifers inhabiting. High abundance and biomass of Spirulina major, Oscillatoria sp. and Brachionus variabilis were observed in lakes with high mineralization, pH and temperature.

  16. Co-occurring woody species have diverse hydraulic strategies and mortality rates during an extreme drought: Belowground hydraulic failure during drought

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, Daniel M. [College of Natural Resources, University of Idaho, Moscow ID 83844 USA; Domec, Jean-Christophe [Bordeaux Sciences Agro, UMR INRA-ISPA 1391, Gradignan 33195 France; Nicholas School of the Environment, Duke University, Durham NC 27708 USA; Carter Berry, Z. [College of Natural Resources, University of Idaho, Moscow ID 83844 USA; Department of Natural Resources and the Environment, University of New Hampshire, Durham NH 03824 USA; Schwantes, Amanda M. [Nicholas School of the Environment, Duke University, Durham NC 27708 USA; McCulloh, Katherine A. [Department of Botany, University of Wisconsin-Madison, Madison WI 53705 USA; Woodruff, David R. [US Forest Service, Pacific Northwest Research Station, Corvallis OR 97331 USA; Wayne Polley, H. [Grassland, Soil & Water Research Laboratory USDA-Agricultural Research Service, Temple TX 76502 USA; Wortemann, Remí [INRA Nancy, UMR INRA-UL 1137 Ecologie et Ecophysiologie Forestières, Champenoux 54280 France; Swenson, Jennifer J. [Nicholas School of the Environment, Duke University, Durham NC 27708 USA; Scott Mackay, D. [Department of Geography, State University of New York, Buffalo NY 14261 USA; McDowell, Nate G. [Pacific Northwest National Laboratory, Richland WA 99352 USA; Jackson, Robert B. [Department of Earth System Science, Woods Institute for the Environment, and Precourt Institute for Energy, Stanford University, Stanford CA 94305 USA


    From 2011 to 2013, Texas experienced its worst drought in recorded history. This event provided a unique natural experiment to assess species-specific responses to extreme drought and mortality of four co-occurring woody species: Quercus fusiformis, Diospyros texana, Prosopis glandulosa and Juniperus ashei. We examined hypothesized mechanisms that could promote these species’ diverse mortality patterns using post-drought measurements on surviving trees coupled to retrospective process modeling. The species exhibited a wide range of gas exchange responses, hydraulic strategies, and mortality rates. Multiple proposed indices of mortality mechanisms were not consistent with the observed mortality patterns across species, including measures of iso/anisohydry, photosynthesis, carbohydrate depletion, and hydraulic safety margins. Large losses of growing season whole-tree conductance (driven by belowground losses of conductance), and shallower rooting depths, were associated with species that exhibited greater mortality. Based on this retrospective analysis, we suggest that species more vulnerable to drought were more likely to have succumbed to hydraulic failure belowground.

  17. Internalisation potential of Escherichia coli O157:H7, Listeria monocytogenes, Salmonella enterica subsp. enterica serovar Typhimurium and Staphylococcus aureus in lettuce seedlings and mature plants. (United States)

    Standing, Taryn-Ann; du Plessis, Erika; Duvenage, Stacey; Korsten, Lise


    The internalisation potential of Listeria monocytogenes, Staphylococcus aureus, Escherichia coli O157:H7 and Salmonella enterica subsp. enterica serovar Typhimurium in lettuce was evaluated using seedlings grown in vermiculite in seedling trays as well as hydroponically grown lettuce. Sterile distilled water was spiked with one of the four human pathogenic bacteria (10(5) CFU/mL) and used to irrigate the plants. The potential for pathogen internalisation was investigated over time using light microscopy, transmission electron microscopy and viable plate counts. Additionally, the identities of the pathogens isolated from internal lettuce plant tissues were confirmed using polymerase chain reaction with pathogen-specific oligonucleotides. Internalisation of each of the human pathogens was evident in both lettuce seedlings and hydroponically grown mature lettuce plants. To our knowledge, this is the first report of S. aureus internalisation in lettuce plants. In addition, the levels of background microflora in the lettuce plants were determined by plate counting and the isolates identified using matrix-assisted laser ionisation-time of flight (MALDI-TOF). Background microflora assessments confirmed the absence of the four pathogens evaluated in this study. A low titre of previously described endophytes and soil inhabitants, i.e., Enterobacter cloacae, Enterococcus faecalis, Lysinibacillus fusiformis, Rhodococcus rhodochrous, Staphylococcus epidermidis and Staphylococcus hominis were identified.

  18. Observation on Marine Copepod - Appendicularian Naturally Changing Concentrations Along Southwest Coast of India

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    Jean J. JOSE


    Full Text Available Patterns of copepod - appendicularian distribution were studied along the Mangalore coastal waters (12�50�49� N; 74�48�50� E of the Arabian Sea to understand the food and feeding relationship existing among these groups. Sampling was conducted during pre-monsoon, monsoon and post-monsoon extending from January 2009 to December 2010. The copepod and appendicularian community was sampled with a 60 ?m net to include the smallest species and their developmental stages. Copepod biomass, especially calanoids, was substantially high throughout the study. Seasonal mean results showed that the small-sized copepods (calanoids, harpacticoida and cyclopoids dominated in terms of biomass and production. Calanoids found in abundance included Acartia, Centropages, Calanus, Eucalanus and Labidocera. Cyclopoid and Harpacticoid copepods genera dominated included Oithona, Oncaea and Microsetella, Macrosetella. Appendicularian species diversity was represented by Oikopleura fusiformis, O. dioica and its juveniles represented as Oikopleura sp. Total chlorophyll (chlorophyll a ranging between 10 and 20 mg m-3 indicated the eutrophic state as well as productivity prevailing during the study period. Principal component analysis (PCA indicated the routine and opportunistic seasonal grazers and establishes a phytoplankton - appendicularia - copepod - fish food chain relationship along Mangalore coast.

  19. Two functionally different muscle fibre types in some salps?

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    Q. Bone


    Full Text Available This paper describes the structure and operation of the fibres in the locomotor muscle bands of several salp species. In many species, for example Thalia democratica or Pegea confoederata, all the muscle fibres of the locomotor muscle bands are similar in width and structure. In others, for example Salpa fusiformis and S. maxima, although fibre structure is similar, the marginal fibres edging the bands may be some 3-4 times the width of those in the centre of the band. In Ihlea punctata, not only is there a more striking difference in width between the marginal and central fibres of the bands, but also the two differ in structure. The marginal fibres are up to 10 times the width of the central fibres and the two differ in myofibrillar and mitochondrial content. Intracellular recordings from the fibres show that the normally compound spike potentials do not overshoot resting potentials (up to -70 mV, and are decremental. The two types of fibre may be separately activated. It is suggested that in Ihlea punctata, the wide marginal fibres may be involved in slow swimming, the central narrow fibres in `escape´ swimming.

  20. Antibiotic susceptibility of body surface and gut micro flora of two aquatic leech species (Hirudinaria manillensis and Hirudinaria javanica in Malaysia

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    Parimannan Sivachandran


    Full Text Available Objective: To elucidate the antibiotic susceptibility of body surface and gut associated microflora of two local aquatic leech species Hirudinaria manillensis and Hirudinaria javanica. Methods: Four commercially available antibiotics (doxycycline, chloramphenicol, tetracycline and ciprofloxacin were used in this study. A total of 13 isolated gut and two surface micro flora from Hirudinaria manillensis and two gut and two surface micro flora from Hirudinaria javanica were tested for their antibiotic susceptibility. Results: Based on the susceptibility, it was observed that all the isolated bacteria were found to be susceptible to at least three of the antibiotics except Microbacterium resistens, Serratia marcescens and Morganella morganii. This study also found that the bacterial species Bacillus fusiformis has displayed resistance against tetracycline and Tsukamurella inchonensis against chloramphenicol. Conclusions: Among all the antibiotics tested, ciprofloxacin was found to be the best bactericidal agent. The immersion of leeches in ciprofloxacin before the application to the patient may be beneficial to prevent invasive infection of the patient. Further study is needed to sterilize the live leech by immersion/oral mode of administration for the tested antibiotics.

  1. The Big Five of Personality and structural imaging revisited: a VBM - DARTEL study. (United States)

    Liu, Wei-Yin; Weber, Bernd; Reuter, Martin; Markett, Sebastian; Chu, Woei-Chyn; Montag, Christian


    The present study focuses on the neurostructural foundations of the human personality. In a large sample of 227 healthy human individuals (168 women and 59 men), we used MRI to examine the relationship between personality traits and both regional gray and white matter volume, while controlling for age and sex. Personality was assessed using the German version of the NEO Five-Factor Inventory that measures individual differences in the 'Big Five of Personality': extraversion, neuroticism, agreeableness, conscientiousness, and openness to experience. In contrast to most previous studies on neural correlates of the Big Five, we used improved processing strategies: white and gray matter were independently assessed by segmentation steps before data analysis. In addition, customized sex-specific diffeomorphic anatomical registration using exponentiated lie algebra templates were used. Our results did not show significant correlations between any dimension of the Big Five and regional gray matter volume. However, among others, higher conscientiousness scores correlated significantly with reductions in regional white matter volume in different brain areas, including the right insula, putamen, caudate, and left fusiformis. These correlations were driven by the female subsample. The present study suggests that many results from the literature on the neurostructural basis of personality should be reviewed carefully, considering the results when the sample size is larger, imaging methods are rigorously applied, and sex-related and age-related effects are controlled.

  2. The parasitic fauna of the European bison (Bison bonasus) (Linnaeus, 1758) and their impact on the conservation. Part 1. The summarising list of parasites noted. (United States)

    Karbowiak, Grzegorz; Demiaszkiewicz, Aleksander W; Pyziel, Anna M; Wita, Irena; Moskwa, Bożena; Werszko, Joanna; Bień, Justyna; Goździk, Katarzyna; Lachowicz, Jacek; Cabaj, Władysław


    During the current century, 88 species of parasites have been recorded in Bison bonasus. These are 22 species of protozoa (Trypanosoma wrublewskii, T. theileri, Giardia sp., Sarcocystis cruzi, S. hirsuta, S. hominis, S. fusiformis, Neospora caninum, Toxoplasma gondii, Cryptosporidium sp., Eimeria cylindrica, E. subspherica, E. bovis, E. zuernii, E. canadensis, E. ellipsoidalis, E. alabamensis, E. bukidnonensis, E. auburnensis, E. pellita, E. brasiliensis, Babesia divergens), 4 trematodes species (Dicrocoelium dendriticum, Fasciola hepatica, Parafasciolopsis fasciolaemorpha, Paramphistomum cervi), 4 cestodes species (Taenia hydatigena larvae, Moniezia benedeni, M. expansa, Moniezia sp.), 43 nematodes species (Bunostomum trigonocephalum, B. phlebotomum, Chabertia ovina, Oesophagostomum radiatum, O. venulosum, Dictyocaulus filaria, D.viviparus, Nematodirella alcidis, Nematodirus europaeus, N. helvetianus, N. roscidus, N. filicollis, N. spathiger, Cooperia oncophora, C. pectinata, C. punctata, C. surnabada, Haemonchus contortus, Mazamastrongylus dagestanicus, Ostertagia lyrata, O. ostertagi, O. antipini, O. leptospicularis, O. kolchida, O. circumcincta, O. trifurcata, Spiculopteragia boehmi, S. mathevossiani, S. asymmetrica, Trichostrongylus axei, T. askivali, T. capricola, T. vitrinus, Ashworthius sidemi, Onchocerca lienalis, O. gutturosa, Setaria labiatopapillosa, Gongylonema pulchrum, Thelazia gulosa, T. skrjabini, T. rhodesi, Aonchotheca bilobata, Trichuris ovis), 7 mites (Demodex bisonianus, D. bovis, Demodex sp., Chorioptes bovis, Psoroptes equi, P. ovis, Sarcoptes scabiei), 4 Ixodidae ticks (Ixodes ricinus, I. persulcatus, I. hexagonus, Dermacentor reticulatus), 1 Mallophaga species (Bisonicola sedecimdecembrii), 1 Anoplura (Haematopinus eurysternus), and 2 Hippoboscidae flies (Lipoptena cervi, Melophagus ovinus). There are few monoxenous parasites, many typical for cattle and many newly acquired from Cervidae.

  3. Differences in Prokaryotic Species Between Primary and Logged-Over Deep Peat Forest in Sarawak, Malaysia

    International Nuclear Information System (INIS)

    Mohd Shawal Thakib Maidin; Sakinah Safari; Nur Aziemah Ghani; Sharifah Azura Syed Ibrahim; Shamsilawani Ahamed Bakeri; Mohamed Mazmira Mohd Masri; Siti Ramlah Ahmad Ali


    Peat land has an important role in environmental sustainability which can be used for agricultural purposes. However, deforestation in the logged-over forest may disrupt the diversity of microbial population in peat soil. Therefore, this study focuses on the differences of microbial populations in Maludam primary forest and Cermat Ceria logged-over forest in Sarawak, Malaysia. The prokaryotic 16S rDNA region was amplified followed by denaturing gradient gel electrophoresis (16S PCR-DGGE) analysis. Berger-Parker and Shannon-Weaver Biodiversity Index showed that Maludam (0.11, 7.75) was more diverse compared to Cermat Ceria (0.19, 7.63). Sequence analysis showed that the bacterial community in Maludam and Cermat Ceria were dominated by unclassified bacteria, followed by Acidobacteria, Actinobacteria, Firmicutes and a-Proteobacteria. Based on the findings, the distinct species that can be found in Maludam were Acidobacterium capsulatum, Solibacter sp., Mycobacterium intracellulare, Rhodoplanes sp., Clostridia bacterium, Exiguobacterium sp. and Lysinibacillus fusiformis. While, the distinct species that can be found in Cermat Ceria were Telmatobacter, Mycobacterium tuberculosis and Bacillus tequilensis. Overall, the findings showed that microbial population in the logged-over forest are less diverse compared to primary forest. Higher prokaryotic diversity identified in the primary forest compared to logged-over forest showed that deforestation might cause prokaryotic population changes to both ecosystems. (author)

  4. Determinants of vitamin A and iron status in pregnant mothers and preschool children

    International Nuclear Information System (INIS)

    Sudhakaran, P.R.; Rajasekharan, K.N.; Menon, V.P.; Nair, K.M.; Chandrasekhar, U.; Nair, P.


    Micronutrient deficiencies, particularly deficiency of vitamin A and iron, have been recognized as a major public health problem in developing countries. This is particularly true for mothers, infants and preschool children, since these deficiencies may promote susceptibility to infectious agents and also increase the risk of developing chronic diseases in adult life. Increasing the availability of dietary provitamin A carotenoids from natural sources will improve vitamin A status among deficient populations. In order to evaluate such intervention programmes, it is essential to have biochemical and field assessment techniques. This proposal aims at conducting a demonstration project in Kerala, India using deuterated β-carotene as an intrinsic label to determine the utilization of this nutrient as a source of vitamin A. The programme design consists of i) method development phase during which Spirulina fusiformis will be grown in microreactors in presence of deuterated water for the production of labelled β-carotene and ii) an application phase wherein experimental animals (primates) will be administered labelled Spirulina to study the factors that influence the utilization of β-carotene for the formation of vitamin A. (author)

  5. The 100-year flood seems to be changing. Can we really tell? (United States)

    Ceres, R. L., Jr.; Forest, C. E.; Keller, K.


    Widespread flooding from Hurricane Harvey greatly exceeded the Federal Emergency Management Agency's 100-year flood levels. In the US, this flood level is often used as an important line of demarcation where areas above this level are considered safe, while areas below the line are at risk and require additional flood risk mitigation. In the wake of Harvey's damage, the US media has highlighted at least two important questions. First, has the 100-year flood level changed? Second, is the 100-year flood level a good metric for determining flood risk? To address the first question, we use an Observation System Simulation Experiment of storm surge flood levels and find that gradual changes to the 100-year storm surge level may not be reliably detected over the long lifespans expected of major flood risk mitigation strategies. Additionally, we find that common extreme value analysis models lead to biased results and additional uncertainty when incorrect assumptions are used for the underlying statistical model. These incorrect assumptions can lead to examples of negative learning. Addressing the second question, these findings further challenge the validity of using simple return levels such as the 100-year flood as a decision tool for assessing flood risk. These results indicate risk management strategies must account for such uncertainties to build resilient and robust planning tools that stakeholders desperately need.

  6. Observación de Propágulos en los géneros Ernodesmis y Struvea Observación de Propágulos en los géneros Ernodesmis y Struvea

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    Schnetter Reinhard


    Full Text Available In Ernodesmis verticillata (Kützing B¢rgesen and Struvea anastomosans (Harvey Piccone & Grunow in Piccone cultures carried out under laboratory conditions, mainly at temperatures lower than those occurring normally at the collection site (coast near Cartagena, Colombia the formation of propagula (exogenous aplanospores was observed. The propagulum formation is considered as an answer to extreme conditions. The propagulum production permits a vegetative reproduction of the algae without the loss of cells of the mother thallus as it happens by the formation of zoospores or endogenous aplanospores. En cultivos de laboratorio de Ernodesmis verticillata (Kützing B¢rgesen y Struvea anastomosans (Harvey Piccone & Grunow in Piccone se observó el desarrollo de propágulos (aplanósporas exógenas predominantemente a temperaturas por debajo de las que ocurren normalmente en la región del origen del material (costa cerca de Cartagena, Colombia. La formación de propágulos se considera como una respuesta a condiciones extremas. La producción de propágulos permite una reproducción vegetativa de las algas sin pérdida de células del talo madre como es el caso si se forman zoosporas o aplanósporas endógenas.

  7. Teorias econômicas marxistas e a Grande Recessão

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    Full Text Available RESUMO O presente artigo dedica-se ao exame de algumas das principais interpretações de inspiração marxista acerca da Grande Recessão que se apresentam publicadas sob a forma de livros. Do amplo conjunto de publicações sobre o tema, as seguintes obras foram analisadas: The Great Financial Crisis, de John Bellamy Foster e Fred Magdoff (2009; The Enigma of Capital, de David Harvey (2011, publicada originalmente em 2010; The Crisis of Neoliberalism, de Gérard Duménil e Dominique Lévy (2011; e The Failure of Capitalist Production, de Andrew Kliman (2012. Argumenta-se que o debate marxista em torno das causas últimas da Grande Recessão pode ser sistematizado a partir da seguinte clivagem: 1 de um lado, os autores que atribuem a turbulência à forma política/econômica/institucional específica assumida pelo sistema capitalista ao longo das últimas décadas; 2 de outro, aqueles que interpretam a crise recente como uma manifestação própria da dinâmica capitalista em geral - e não do modo particular que esta supostamente apresenta. Enquanto Foster e Magdoff (2009, Harvey (2011 e Duménil e Lévy (2011 compõem o primeiro grupo, Kliman (2012 pode ser visto como representante da segunda vertente.

  8. Convergence and divergence between the local and regional state around solid waste management. An unresolved problem in the Sacred Valley

    Directory of Open Access Journals (Sweden)

    Teresa Tupayachi Mar


    Full Text Available This article and the following «The Material Politics of Waste Disposal - decentralization and integrated systems» from Penelope Harvey are published as complementary accounts on the management of solid waste in the Vilcanota Valley in Cusco. Penelope Harvey and Teresa Tupayachi worked together on this theme. In this paper, Tupayachi introduces the legal framing for the politics of waste disposal in the region. She also presents two studies that were commissioned in order to find solutions to the problem of waste disposal. The first was carried out in 2003, with finance from Finnish development cooperation funds, in co-ordination with technical experts from various universities, NGOs and state agencies, including the municipality of Urubamba. The second, a component of the Vilcanota project, was completed in 2011. The studies have things in common. Both involve regional and local government as central agents in the process, both focus their efforts to resolve the problem of solid waste management on possible technical solutions, and both are well resourced in both financial and human terms. However neither succeed in finding a way to accommodate the diverse interests and perceptions of the municipalities and of the general public. Faced with this situation local government officials, and people in general act on their own initiative, finding decentralized, and at times informal solutions to the problem, taking advantage of market opportunities.

  9. Capital Ruptures: Economies of Crisis and Urban Space in Javier Moreno's 2020

    Directory of Open Access Journals (Sweden)

    N. Michelle Murray


    Full Text Available This essay asserts that the aftermath of the 2008 global economic crisis has re-focused scholarship onto capitalism’s tendency towards what David Harvey calls “creative destruction,” where space is continually destroyed and reproduced to serve the interests of capital. Following Harvey, my essay investigates the representation of space in relation to economic crisis in Javier Moreno’s novel 2020. I contend that in 2020, excess non-“places”—specifically, taxis, supermarkets, and airports—intrinsic to late capitalist society transform into sites of solidarity and social transformation as capital relentlessly degrades proper “places” of the urban landscape. Thus, the essay critically examines depictions of spaces, places, and non-places in 2020 to argue that Moreno "capitalizes" upon the political economy’s contradictions to represent the city’s supposedly unhistorical, asocial, excess “non-places” as sites that subvert neoliberal principles in a futuristic Madrid plagued by unfathomable crisis. This line of inquiry ultimately leads me to envision the novel in crisis as a virtual commons that encourages dialogue and cultural critique.

  10. Sperm whale clicks

    DEFF Research Database (Denmark)

    Møhl, Bertel; Wahlberg, Magnus; Madsen, Peter T.


    . A sound generator weighing upward of 10 tons and with a cross-section of 1 m is expected to generate high-intensity, directional sounds. This prediction from the Norris and Harvey theory is not supported by published data for sperm whale clicks ~source levels of 180 dB re 1 mPa and little, if any......In sperm whales ~Physeter catodon L. 1758! the nose is vastly hypertrophied, accounting for about one-third of the length or weight of an adult male. Norris and Harvey @in Animal Orientation and Navigation, NASA SP-262 ~1972!, pp. 397–417# ascribed a sound-generating function to this organ complex......, directionality!. Either the theory is not borne out or the data is not representative for the capabilities of the sound-generating mechanism. To increase the amount of relevant data, a five-hydrophone array, suspended from three platforms separated by 1 km and linked by radio, was deployed at the slope...

  11. New records of marine algae in Vietnam (United States)

    Le Hau, Nhu; Ly, Bui Minh; Van Huynh, Tran; Trung, Vo Thanh


    In May, 2013, a scientific expedition was organized by the Vietnam Academy of Science and Technology (VAST) and the Far Eastern Branch of the Russian Academy of Sciences (FEBRAS) through the frame of the VAST-FEBRAS International Collaboration Program. The expedition went along the coast of Vietnam from Quang Ninh to Kien Giang. The objective was to collect natural resources to investigate the biological and biochemical diversity of the territorial waters of Vietnam. Among the collected algae, six taxa are new records for the Vietnam algal flora. They are the red algae Titanophora pikeana (Dickie) Feldmann from Cu Lao Xanh Island, Laurencia natalensis Kylin from Tho Chu Island, Coelothrix irregularis (Harvey) Børgesen from Con Dao Island, the green algae Caulerpa oligophylla Montagne, Caulerpa andamanensis (W.R. Taylor) Draisma, Prudhomme et Sauvage from Phu Quy Island, and Caulerpa falcifolia Harvey & Bailey from Ly Son Island. The seaweed flora of Vietnam now counts 833 marine algal taxa, including 415 Rhodophyta, 147 Phaeophyceae, 183 Chlorophyta, and 88 Cyanobacteria.

  12. Apparent characteristics and taxonomic study of macroalgae in Pattani Bay

    Directory of Open Access Journals (Sweden)

    Naruemol Pianthumdee


    Full Text Available 2A survey on macroalgae in Pattani Bay was carried out to build up a database resource for the management of algae in the area. From February 2004 to March 2005, samples of macroalgae from 10 sites were randomly collected monthly. Macroalgae were found at 4 sites in the north of the bay, namely Laem Tachi, Lighthouse, Ban Bu Di and Ban Ta Lo Samilae; 3 sites in the east, namely Ban Da To, the Yaring River Mouth and Ban Bang Pu and only one site in the south at Ban Tanyong Lu Lo. Twelve species of 3 divisions of macroalgae were detected. They were Division Cyanophyta, Lyngbya majuscula (Dillwyn Harvey ex Gomont; Division Chlorophyta; Ulva intestinalis Linnaeus, U. pertusa Kjellman and U. reticulata Forsskal, Rhizoclonium riparium (Roth Harvey, R. tortuosum Kutzing, Chaetomorpha crassa (C. Agardh Kutzing and Cladophora sp.; and Division Rhodophyta, namely Gracilaria tenuistipitata Chang et Xia, G. fisheri (Xia et Abbott Abbott, Zhang et Xia, Hypnea spinella (C. Agardh Kutzing and Acanthophora spicifera (Vahl B∅rgesen. Among them, four species were new recordings at Pattani Bay: Lyngbya majuscula, Rhizoclonium riparium, R. tortuosum and Acanthophora spicifera. Most of these seaweeds were found at the east sites in the dry season from February to September 2004 and from January to March 2005. Only a few species could be found in the wet season from November to December 2004.

  13. "Can I Be at Risk of Getting AIDS?" A Linguistic Analysis of Two Internet Columns on Sexual Health

    Directory of Open Access Journals (Sweden)

    Mullany, Louise


    Full Text Available Recent global statistics highlight that, out of all new cases of HIV infection, 45% are diagnosed in young people (UNAIDS 2008. Despite a range of new initiatives aimed at increasing young people's knowledge of HIV at the beginning of the first decade of the twenty-first century (UNAIDS 2001, latest figures highlight that such initiatives have not been wholly successful in preventing new infection in young people (UNAIDS 2011. In light of this, the language patterns that young people use when seeking information about HIV/AIDS are investigated. Our focus in particular is on computer-mediated-communication, a relatively under-researched area in the sphere of health communication. Building on previous research (Locher 2006, 2010; Harvey et al. 2008; Harvey 2013, we examine one UK and one US Internet-based, professional, health advice column as sources of advice-information for young people. Despite numerous established health campaigns, young advice-seekers' questions reflect misinformed conceptions, such as the conflation of HIV and AIDS and confusion as to the way in which the virus can be contracted. Our linguistic research gives access to young people's lay beliefs about sexual health and highlights the need to redress such beliefs, with the aim of improving the effectiveness of health education initiatives. We suggest that computer-mediated communication can be one effective medium through which to assess young people's knowledge about HIV/AIDS, as well as effectively disseminating sexual health advice and information by health care bodies.

  14. Starting a DNA barcode reference library for shallow water polychaetes from the southern European Atlantic coast. (United States)

    Lobo, Jorge; Teixeira, Marcos A L; Borges, Luisa M S; Ferreira, Maria S G; Hollatz, Claudia; Gomes, Pedro T; Sousa, Ronaldo; Ravara, Ascensão; Costa, Maria H; Costa, Filipe O


    Annelid polychaetes have been seldom the focus of dedicated DNA barcoding studies, despite their ecological relevance and often dominance, particularly in soft-bottom estuarine and coastal marine ecosystems. Here, we report the first assessment of the performance of DNA barcodes in the discrimination of shallow water polychaete species from the southern European Atlantic coast, focusing on specimens collected in estuaries and coastal ecosystems of Portugal. We analysed cytochrome oxidase I DNA barcodes (COI-5P) from 164 specimens, which were assigned to 51 morphospecies. To our data set from Portugal, we added available published sequences selected from the same species, genus or family, to inspect for taxonomic congruence among studies and collection location. The final data set comprised 290 specimens and 79 morphospecies, which generated 99 Barcode Index Numbers (BINs) within Barcode of Life Data Systems (BOLD). Among these, 22 BINs were singletons, 47 other BINs were concordant, confirming the initial identification based on morphological characters, and 30 were discordant, most of which consisted on multiple BINs found for the same morphospecies. Some of the most prominent cases in the latter category include Hediste diversicolor (O.F. Müller, 1776) (7), Eulalia viridis (Linnaeus, 1767) (2) and Owenia fusiformis (delle Chiaje, 1844) (5), all of them reported from Portugal and frequently used in ecological studies as environmental quality indicators. Our results for these species showed discordance between molecular lineages and morphospecies, or added additional relatively divergent lineages. The potential inaccuracies in environmental assessments, where underpinning polychaete species diversity is poorly resolved or clarified, demand additional and extensive investigation of the DNA barcode diversity in this group, in parallel with alpha taxonomy efforts. © 2015 John Wiley & Sons Ltd.

  15. Functional roles of an engineer species for coastal benthic invertebrates and demersal fish. (United States)

    Chaalali, Aurélie; Brind'Amour, Anik; Dubois, Stanislas F; Le Bris, Hervé


    Through their tissues or activities, engineer species create, modify, or maintain habitats and alter the distribution and abundance of many plants and animals. This study investigates key ecological functions performed by an engineer species that colonizes coastal ecosystems. The gregarious tubiculous amphipod Haploops nirae is used as a biological model. According to previous studies, the habitat engineered by H. nirae (i.e., Haploops habitat) could provide food and natural shelter for several benthic species such as benthic diatoms belonging to the gender Navicula , the micrograzer Geitodoris planata, or the bivalve Polititapes virgineus . Using data from scientific surveys conducted in two bays, this study explored whether (1) the Haploops sandy-mud community modifies invertebrate and ichthyologic community structure (diversity and biomass); (2) H. nirae creates a preferential feeding ground; and (3) this habitat serves as a refuge for juvenile fish. Available Benthic Energy Coefficients, coupled with more traditional diversity indices, indicated higher energy available in Haploops habitat than in two nearby habitats (i.e., Sternaspis scutata and Amphiura filiformis/Owenia fusiformis habitats). The use of isotopic functional indices (IFIs) indicated (1) a higher functional richness in the Haploops habitat, related to greater diversity in food sources and longer food chains; and (2) a higher functional divergence, associated with greater consumption of a secondary food source. At the invertebrate-prey level, IFIs indicated little specialization and little trophic redundancy in the engineered habitat, as expected for homogenous habitats. Our results partly support empirical knowledge about engineered versus nonengineered habitats and also add new perspectives on habitat use by fish and invertebrate species. Our analyses validated the refuge-area hypothesis for a few fish species. Although unique benthic prey assemblages are associated with Haploops habitat, the

  16. Viability of calcifying bacterial formulations in fly ash for applications in building materials. (United States)

    Dhami, Navdeep Kaur; Mukherjee, Abhijit; Reddy, M Sudhakara


    Evidence of bacterial involvement in precipitation of calcium carbonates has brought a revolution in the field of applied microbiology, geotechnical sciences, environmental and civil engineering with its marked success in restoration of various building materials. For applications of these calcite binder-producing bacterial cultures, different expensive carrier materials have been used but their high costs have come in the way of their successful commercialization. In the present study, we have explored the potential of cheap industrial by-product fly ash as a carrier material for bacterial cells and investigated the viability of calcifying bacterial isolates: Bacillus megaterium, Bacillus cereus, and Lysinibacillus fusiformis in fly ash carrier at varying temperatures and moisture conditions along with biomineralization efficacy of these formulations. We used laser scanning confocal microscopy to analyze the viability of bacteria by florescent dye 5-cyano-2,3-ditolyl tetrazolium chloride (CTC) along with the plate count method. Results revealed that fly ash successfully served as an effective carrier material and bacterial formulations stored at 4 °C provided longer shelf life than those stored at higher temperatures. Up to 10(6) cfu/g was found to sustain in all formulations at 4 °C compared to 10(4)-10(5) cfu/g in case of higher temperatures up to 1 year. For 4 °C, higher moistures (50 %) were found to provide better survivability while for higher temperatures, lower moistures (30 %) favored higher viability. The biomineralization capability of fresh and formulated bacterial cells was compared on the basis of precipitation of carbonates and it was found that carbonate precipitation efficacy of formulated bacterial cells was comparable to fresh bacterial cells.

  17. Metal adsorption capabilities of clinoptilolite and selected strains of bacteria from mine water (United States)

    Mamba, B. B.; Dlamini, N. P.; Nyembe, D. W.; Mulaba-Bafubiandi, A. F.

    Small-scale mining has socio-economic advantages such as the reduction of unemployment and the general improvement of the economy. However, these operations if not properly managed or controlled have a potential to cause environmental damage, particularly with respect to the contamination of groundwater and water supplies that are not distant from where these mining activities take place. This paper focuses on metal removal from water contaminated by heavy metals emanating from small-scale mining operations using clinoptilolite and bacteria. Removal of As, Ni, Mn, Au, Co, Cu and Fe was carried out on mine water samples using original and HCl-activated (in 0.02 M and 0.04 M) natural clinoptilolite and bacterial strains (a mixed consortia of Bacillus strains ( Bacillus subtilis, Bacillus cereus, Bacillus firmus, Bacillus fusiformis, Bacillus macroides and Bacillus licheniformis), Pseudomonas spp., Shewanella spp. and a mixed consortia of Acidithiobcillus caldus, Leptospirillum spp., Ferroplasma spp. and Sulphobacillus spp.). The purpose of the study was to compare the removal efficiencies of the bacterial strains versus natural clinoptilolite adsorbents for metal cations. The Bacillus consortia removed most of the metals up to 98% metal removal efficiency with the exception of nickel where clinoptilolite showed good removal efficiency. The 0.02 M HCl-activated clinoptilolite also demonstrated excellent removal capabilities with Cu, Co and Fe removal efficiency of up to 98%. Both clinoptilolite and bacteria demonstrated capabilities of removing Cu 2+, Co 2+, Fe 2+, Mn 2+, As 3+ and Au from solution which augurs well for metal recovery from mining and mineral processing solutions, as well as in water decontamination.

  18. Microplanktonic community structure in a coastal system relative to a Phaeocystis bloom inferred from morphological and tag pyrosequencing methods.

    Directory of Open Access Journals (Sweden)

    Sébastien Monchy

    Full Text Available BACKGROUND: Massive phytoplankton blooms, like the recurrent Phaeocystis proliferation observed every year in the Eastern English Channel (EEC, have a significant influence on the overall planktonic community structure and their food web dynamics. As well as being an important area for local fisheries, the EEC is an ideal ecosystem for work on microbial diversity. This is because, although its environmental context is relatively complex, it is reasonably well understood due to several years of monitoring and morphological observations of its planktonic organisms. The objective of our study was to better understand the under-explored microbial eukaryotic diversity relative to the Phaeocystis bloom. METHODOLOGY AND PRINCIPAL FINDINGS: The community structure of microplankton (diatoms, haptophytes, ciliates and dinoflagellates was studied through morphological observations and tag pyrosequencing. During the annual Phaeocystis spring bloom, the phytoplankton biomass increased by 34-fold, while the microzooplankton biomass showed a 4-fold increase, representing on average about 4.6% of the biomass of their phytoplankton prey. Tag pyrosequencing unveiled an extensive diversity of Gymnodiniaceae, with G. spirale and G. fusiformis representing the most abundant reads. An extended diversity of Phaeocystales, with partial 18S rDNA genes sequence identity as low as 85% was found, with taxa corresponding to P. globosa, but also to unknown Phaeocystaceae. CONCLUSIONS: Morphological analyses and pyrosequencing were generally in accordance with capturing frequency shifts of abundant taxa. Tag pyrosequencing allowed highlighting the maintenance of microplankton diversity during the Phaeocystis bloom and the increase of the taxa presenting low number of reads (minor taxa along with the dominant ones in response to biotic and/or abiotic changing conditions. Although molecular approaches have enhanced our perception on diversity, it has come to light that the

  19. Novel adenosine 3',5'-cyclic monophosphate dependent protein kinases in a marine diatom

    International Nuclear Information System (INIS)

    Lin, P.P.C.; Volcani, B.E.


    Two novel adenosine 3',5'-cyclic monophosphate (cAMP) dependent protein kinases have been isolated from the diatom Cylindrotheca fusiformis. The kinases, designated I and II, are eluted from DEAE-Sephacel at 0.10 and 0.15 M NaCl. They have a high affinity for cAMP and are activated by micromolar cAMP. They exhibit maximal activity at 5 mM Mg 2+ and pH 8 with the preferred phosphate donor ATP and phosphate acceptor histone H1. They phosphorylate sea urchin sperm histone H1 on a single serine site in the sequence Arg-Lys-Gly-Ser( 32 P)-Ser-Asn-Ala-Arg and have an apparent M r of 75,000 as determined by gel filtration and sucrose density sedimentation. In the kinase I preparation a single protein band with an apparent M r of about 78,000 is photolabeled with 8-azido[ 32 P]cAMP and is also phosphorylated with [γ- 32 P]ATP in a cAMP-dependent manner, after autoradiography following sodium dodecyl sulfate gel electrophoresis. The rate of phosphorylation of the 78,000-dalton band is independent of the enzyme concentration. The results indicate that (i) these diatom cAMP-dependent protein kinases are monomeric proteins, possessing both the cAMP-binding regulatory and catalytic domains on the same polypeptide chain, (ii) the enzymes do not dissociate into smaller species upon activation by binding cAMP, and (iii) self-phosphorylation of the enzymes by an intrapeptide reaction is cAMP dependent. The two diatom cAMP kinases are refractory to the heat-stable protein kinase modulator from rabbit muscle, but they respond differently to proteolytic degradation and to inhibition by arachidonic acid and several microbial alkaloids

  20. Hydraulic responses to extreme drought conditions in three co-dominant tree species in shallow soil over bedrock. (United States)

    Kukowski, Kelly R; Schwinning, Susanne; Schwartz, Benjamin F


    An important component of the hydrological niche involves the partitioning of water sources, but in landscapes characterized by shallow soils over fractured bedrock, root growth is highly constrained. We conducted a study to determine how physical constraints in the root zone affected the water use of three tree species that commonly coexist on the Edwards Plateau of central Texas; cedar elm (Ulmus crassifolia), live oak (Quercus fusiformis), and Ashe juniper (Juniperus ashei). The year of the study was unusually dry; minimum predawn water potentials measured in August were -8 MPa in juniper, less than -8 MPa in elm, and -5 MPa in oak. All year long, species used nearly identical water sources, based on stable isotope analysis of stem water. Sap flow velocities began to decline simultaneously in May, but the rate of decline was fastest for oak and slowest for juniper. Thus, species partitioned water by time when they could not partition water by source. Juniper lost 15-30 % of its stem hydraulic conductivity, while percent loss for oak was 70-75 %, and 90 % for elm. There was no tree mortality in the year of the study, but 2 years later, after an even more severe drought in 2011, we recorded 34, 14, 6, and 1 % mortality among oak, elm, juniper, and Texas persimmon (Diospyros texana), respectively. Among the study species, mortality rates ranked in the same order as the rate of sap flow decline in 2009. Among the angiosperms, mortality rates correlated with wood density, lending further support to the hypothesis that species with more cavitation-resistant xylem are more susceptible to catastrophic hydraulic failure under acute drought.

  1. The complete plastid genomes of the two 'dinotoms' Durinskia baltica and Kryptoperidinium foliaceum.

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    Behzad Imanian


    Full Text Available In one small group of dinoflagellates, photosynthesis is carried out by a tertiary endosymbiont derived from a diatom, giving rise to a complex cell that we collectively refer to as a 'dinotom'. The endosymbiont is separated from its host by a single membrane and retains plastids, mitochondria, a large nucleus, and many other eukaryotic organelles and structures, a level of complexity suggesting an early stage of integration. Although the evolution of these endosymbionts has attracted considerable interest, the plastid genome has not been examined in detail, and indeed no tertiary plastid genome has yet been sequenced.Here we describe the complete plastid genomes of two closely related dinotoms, Durinskia baltica and Kryptoperidinium foliaceum. The D. baltica (116470 bp and K. foliaceum (140426 bp plastid genomes map as circular molecules featuring two large inverted repeats that separate distinct single copy regions. The organization and gene content of the D. baltica plastid closely resemble those of the pennate diatom Phaeodactylum tricornutum. The K. foliaceum plastid genome is much larger, has undergone more reorganization, and encodes a putative tyrosine recombinase (tyrC also found in the plastid genome of the heterokont Heterosigma akashiwo, and two putative serine recombinases (serC1 and serC2 homologous to recombinases encoded by plasmids pCf1 and pCf2 in another pennate diatom, Cylindrotheca fusiformis. The K. foliaceum plastid genome also contains an additional copy of serC1, two degenerate copies of another plasmid-encoded ORF, and two non-coding regions whose sequences closely resemble portions of the pCf1 and pCf2 plasmids.These results suggest that while the plastid genomes of two dinotoms share very similar gene content and genome organization with that of the free-living pennate diatom P. tricornutum, the K. folicaeum plastid genome has absorbed two exogenous plasmids. Whether this took place before or after the tertiary

  2. Clinical experience in saving a case of very severe acute radiation sickness after failure in bone marrow transplantation

    International Nuclear Information System (INIS)

    Ye Genyao; Cheng Xiyuan; Huang Shimin


    A 17 years old male patient with chronic granulocytic leukemia (CML) in remission received BMT from his younger sister, identical in HLA typing and negative in MLC reaction, after conditioning regime with daunorubicin, cyclophosphamide and total body irradiation ( 60 Co 2,67 cGy/m, 6.5 Gy in two days and altogether 7 Gy including 0.5 Gy a week ago). He had muco-bloody stool without offensive odor or air bubbles since 45 days after irradiation. The stool cultures (21 times) turned out to be negative for bacteria including anaerobic Bacillus fusiformis. Three out of 17 stool cultures for sungi were positive. Muco-blood disappeared in feces after 88 days foolowed by formed stool. The WBC reached the nadir (0.022 x 10 9 /1) on day 7, rose to 0.6 x 10 9 /1 on day 14 and dropped again after severe anaphylaxis, indicating no take of the marrow. It remained at 0.06 x 10 9 /1 on day 30 and rose to above 1.0 x 10 9 /1 after day 66. Application of LAFR, insertion of Hickman catheter kept in patient and sterile to maintain effectviely the water-electrolyte balance and acid-base equilibrium, disinfection of GI tract, alternative combined use of anti-infectious drugs, transfusion of whole blood and its components from donors with CMV titre ≤ 1 : 200 (only 34.29% in 70 donors) and irradiated with 25 Gy, large amount of placental immuno-gamma-globulin, all these effectively avoided the occurrence of CMV pneumonia. He recoered 90 days later and he has been alive for 28 months since TBI and for 41 months since the onset of illness

  3. Importance of seed-borne fungi of sorghum and pearl millet in Burkina Faso and their control using plant extracts. (United States)

    Zida, Pawindé Elisabeth; Sérémé, Paco; Leth, Vibeke; Sankara, Philippe; Somda, Irénée; Néya, Adama


    Seed-borne fungi of sorghum and pearl millet in Burkina Faso were surveyed. A total of 188 seed samples from various locations, collected in 1989 (42) and 2002 (146), were tested, using the blotter, dry inspection and washing methods. Infection experiments were carried out with the major fungi recorded on each crop by the blotter test. Six essential oils of plants were investigated for their inhibitory activity against eight pathogenic fungi. Thirty four and 27 fungal species were found in seed samples of sorghum and pearl millet, respectively. Phoma sp. and Fusarium moniliforme infected 95 to 100% of the seed samples of both sorghum and pearl millet. Sphacelotheca sorghi and Tolyposporium ehrenbergii were encountered in respectively, 75 and 33% of seed samples of sorghum. T. penicillariae, Sclerospora graminicola and Claviceps fusiformis were present in 88, 41 and 32% of seed samples of pearl millet, respectively. Seeds inoculated with Acremonium strictum, Curvularia oryzae, F. equiseti, F. moniliforme and F. subglutinans and sown in sterilized soil, showed considerable mortality of the seedlings. Three essential oils inhibited in vitro the mycelial growth of all the fungi used by 85 to 100% and reduced significantly sorghum and pearl millet seed infection rates of Phoma sp., Fusarium sp., Curvularia sp., Colletotrichum graminicola and Exserohilum sp. Presence of many pathogenic fungi in considerable number of seed samples indicates the need of field surveys for these and other pathogens. Development of plant extracts for the control of seed-borne pathogens and public awareness on seed-borne diseases management measures for maintaining quality seed should be increased.

  4. The paratransgenic sand fly: a platform for control of Leishmania transmission. (United States)

    Hurwitz, Ivy; Hillesland, Heidi; Fieck, Annabeth; Das, Pradeep; Durvasula, Ravi


    Leishmania donovani is transmitted by the bite of the sand fly, Phlebotomus argentipes. This parasite is the agent of visceral leishmaniasis (VL), an endemic disease in Bihar, India, where prevention has relied mainly on DDT spraying. Pesticide resistance in sand fly populations, environmental toxicity, and limited resources confound this approach. A novel paratransgenic strategy aimed at control of vectorial transmission of L. donovani is presented using Bacillus subtilis, a commensal bacterium isolated from the sand fly gut. In this work, B. subtilis expressing Green Fluorescent Protein (GFP) was added to sterilized larval chow. Control pots contained larval chow spiked either with untransformed B. subtilis or phosphate-buffered saline. Fourth-instar P. argentipes larvae were transferred into the media and allowed to mature. The number of bacterial colony forming units, relative abundance and the mean microbial load were determined per developmental stage. Addition of B. subtilis to larval chow did not affect sand fly emergence rates. B. cereus and Lys fusiformis were identified at each developmental stage, revealing transstadial passage of endogenous microbes. Larvae exposed to an exogenous bolus of B. subtilis harbored significantly larger numbers of bacteria. Bacterial load decreased to a range comparable to sand flies from control pots, suggesting an upper limit to the number of bacteria harbored. Emerging flies reared in larval chow containing transformed B. subtilis carried large numbers of these bacteria in their gut lumens. Strong GFP expression was detected in these paratransgenic flies with no spread of transformed bacteria to other compartments of the insects. This is the first demonstration of paratransgenic manipulation of P. argentipes. Paratransgenic manipulation of P. argentipes appears feasible. Expression of leishmanicidal molecules via commensal bacteria commonly found at breeding sites of P. argentipes could render adult sand flies refractory

  5. Baby M: babies (and justice) for sale. (United States)

    Annas, G J


    A professor of health law criticizes the decisions of New Jersey Superior Court Judge Harvey R. Sorkow which culminated in his awarding permanent custody of Baby M to her biological father, William Stern. Annas quotes from the In re Baby M decision and from the contract between Stern and his wife and surrogate mother Mary Beth Whitehead to support his contention that Sorkow "rendered a sermon filled with contradictions, double-standards, inapt analogies, and unsupported conclusions." He argues that legally Mrs. Whitehead could not have prospectively waived her right to rear a child she bore, that Sorkow was biased in favor of the "upper-middle-class Sterns," and that consideration should be given to returning Baby M to Mrs. Whitehead. He urges state legislatures to outlaw the sale of children, to affirm the legal status of the gestational mother, and to forbid a surrogate's relinquishment of parental rights until after her child's birth.


    Directory of Open Access Journals (Sweden)



    Full Text Available The aim of this paper is to provide an overview of the diagnostic tests for detecting heteroskedasticity on financial time series. In financial econometrics, heteroskedasticity is generally associated with cross sectional data but can also be identified modeling time series data. The presence of heteroscedasticity in financial time series can be caused by certain specific factors, like a model misspecification, inadequate data transformation or as a result of certain outliers. Heteroskedasticity arise when the homoskedasticity assumption is violated. Testing for the presence of heteroskedasticity in financial time is performed by applying diagnostic test, such as : Breusch-Pagan LM test, White’s test, Glesjer LM test, Harvey-Godfrey LM test, Park LM test and Goldfeld-Quand test.

  7. Interior design of a two-dimensional semiclassical black hole: Quantum transition across the singularity

    International Nuclear Information System (INIS)

    Levanony, Dana; Ori, Amos


    We study the internal structure of a two-dimensional dilatonic evaporating black hole based on the Callan, Giddings, Harvey, and Strominger model. At the semiclassical level, a (weak) spacelike singularity was previously found to develop inside the black hole. We employ here a simplified quantum formulation of spacetime dynamics in the neighborhood of this singularity, using a minisuperspace-like approach. Quantum evolution is found to be regular and well defined at the semiclassical singularity. A well-localized initial wave packet propagating towards the singularity bounces off the latter and retains its well-localized form. Our simplified quantum treatment thus suggests that spacetime may extend semiclassically beyond the singularity, and also signifies the specific extension.

  8. Interior design of a two-dimensional semiclassical black hole: Quantum transition across the singularity (United States)

    Levanony, Dana; Ori, Amos


    We study the internal structure of a two-dimensional dilatonic evaporating black hole based on the Callan, Giddings, Harvey, and Strominger model. At the semiclassical level, a (weak) spacelike singularity was previously found to develop inside the black hole. We employ here a simplified quantum formulation of spacetime dynamics in the neighborhood of this singularity, using a minisuperspace-like approach. Quantum evolution is found to be regular and well defined at the semiclassical singularity. A well-localized initial wave packet propagating towards the singularity bounces off the latter and retains its well-localized form. Our simplified quantum treatment thus suggests that spacetime may extend semiclassically beyond the singularity, and also signifies the specific extension.

  9. Engaging in Earnings Management to Avoid Negative Earnings

    Directory of Open Access Journals (Sweden)

    Imam Subekti


    Full Text Available The purpose of this study is to investigate the earnings management behavior of companies listed in the Indonesia Stock Exchange (ISE. Specifically, the study investigates whether companies engaging in real earnings management or accrual management intent to avoid negative earnings; it also examines whether earnings management behavior supports efficient contracting or opportunistic behavior perspective. The sample of this study comprised 166 firm-years of manufacturing industrial sector during the period 2004 – 2005. Using multiple regressions, the study finds evidence that the companies engage in both earnings management, which are discretionary expenses (proxy of real earnings management and accruals management. This evidence supports the studies of Graham, Harvey, & Rajgopal (2005 and Roychowdhury (2006. Another result shows that the real earnings management conducted by the companies is efficient partially, while the accruals management is opportunistic.

  10. The Epistemic Inferiority of Pragma-Dialectics – Reply to Botting

    Directory of Open Access Journals (Sweden)

    Christoph Lumer


    Full Text Available In a recent paper in this journal, David Botting defended pragma-dialectics against epistemological criticisms by exponents of the epistemological approach to argumentation, i.e. Harvey Siegel, John Biro and me. In particular, Botting tries to justify with new arguments a Functional Claim, that the function of argumentation is to resolve disputes, and a Normative Claim, that standpoints that have the unqualified consensus of all participants in a dispute will generally be epistemically sound. In this reply it is shown that Botting’s arguments are fallacious, that the two Claims are false and that the epistemological approach to argumentation, of course, outclasses pragma-dialectics epistemically and is at least as good as it in other respects.

  11. Dispossess to accumulate: reflections on the contradictions of the process of neoliberal modernization of Chilean agriculture

    Directory of Open Access Journals (Sweden)

    Luis Fernando De Matheus e Silva


    Full Text Available The intention of this paper is to present a renewed and critical reading about the contradictions engendered by the neoliberal modernization of the Chilean agriculture. This task is carried out through the lens of the "historical-geographical materialism" developed mainly by the British geographer David Harvey, and also through agrarian studies linked to the critical thinking, especially Marxists. As the main empirical substrate, information and data supplied by documents and studies that have sought to understand the specific case of contemporary capitalist development in Chile as well as its consequences for the countryside and national peasants are used. It is sustained here that the mechanisms of “accumulation by dispossession” were (and still are of critical importance to make Chile a world-wide agricultural and food.

  12. Turismo, direito ambiental e conflitos na produção do espaço: o caso da reserva Imbassaí e seu entorno, na APA Litoral norte da Bahia


    MACHADO, Cláudia Novaes


    Esta pesquisa apresenta um estudo de caso referente ao Complexo Turístico-Hoteleiro Reserva Imbassaí e seu entorno - Imbassaí, Barro Branco e Sucuiu - na Área de Proteção Ambiental Litoral Norte do Estado da Bahia considerando a aplicação do Direito Ambiental na produção do espaço para o turismo. A fundamentação teórico-conceitual foi embasada nas categorias geográficas de análise forma, função, estrutura e processo - Santos (1985), turismo - Rodrigues (1997), produção do espaço - Harvey (200...

  13. Designsafe-Ci a Cyberinfrastructure for Natural Hazard Simulation and Data (United States)

    Dawson, C.; Rathje, E.; Stanzione, D.; Padgett, J.; Pinelli, J. P.


    DesignSafe is the web-based research platform of the Natural Hazards Engineering Research Infrastructure (NHERI) network that provides the computational tools needed to manage and analyze critical data for natural hazards research, with wind and storm surge related hazards being a primary focus. One of the simulation tools under DesignSafe is the Advanced Circulation (ADCIRC) model, a coastal ocean model used in storm surge analysis. ADCIRC is an unstructured, finite element model with high resolution capabilities for studying storm surge impacts, and has long been used in storm surge hind-casting and forecasting. In this talk, we will demonstrate the use of ADCIRC within the DesignSafe platform and its use for forecasting Hurricane Harvey. We will also demonstrate how to analyze, visualize and archive critical storm surge related data within DesignSafe.

  14. 50 Years to Gender Parity: Can STEM Afford to Wait?: A Cardiologist and NIH Chief Officer of Scientific Workforce Diversity Reflects on What It Will Take to Keep Women in Biomedicine. (United States)

    Valantine, Hannah A


    The first spark of my desire to become a cardiologist came, believe it or not, in a third-grade art class where I was asked to draw and color the circulation of blood as depicted by 16th-century English physician William Harvey. This task enraptured me-seeing that something so beautiful could work so flawlessly. So, many years later, I remain intrigued by cardiac transplantation, the subspecialty in which I ultimately chose to anchor my career as a physician scientist. Each day I live in awe of the fact that you can remove someone's organ, place it in another, and still have that organ work beautifully, most of the time. But why does it sometimes fail?

  15. Notas críticas sobre O Capital no século XXI de Thomas Piketty

    Directory of Open Access Journals (Sweden)


    Full Text Available RESUMO Este artigo tem como objetivo analisar alguns aspectos do último livro de Thomas Piketty, O Capital no século XXI, do ponto de vista Marxista. São abordadas as relações que fundamentam sua análise de longo prazo da desigualdade na distribuição de renda e riqueza, seus conceitos de capital e de longo prazo, bem como sua interpretação do pensamento de Marx. Também são levantados alguns problemas existentes em sua base de dados. A análise tem como ponto de partida a crítica realizada por alguns autores Marxistas de renome, tais como Michel Husson, David Harvey e Yanis Varoufakis, bem como Robert Boyer. entre as conclusões do artigo, destaca-se o fato de o estudo de Piketty estar fracamente fundamentado teoricamente.

  16. El marco referencial de la economía pública

    Directory of Open Access Journals (Sweden)

    Justo Aguilar Fong


    Full Text Available Este artículo fue preparado originalmente como material académico para los estudiantes del curso Finanzas Públicas que se imparte en el Programa de Licenciatura de Economía de la Universidad de Costa Rica (Justo Aguilar, 2006. En lo fundamental el ensayo es de carácter normativo y se estructuró con referencia a los trabajos de R.W. Tresch (Public Finance. A Normative Theory. Texas: Business Publications Inc. 1981; Harvey Rosen (Finanzas Públicas, Mc Graw Hill, 2000; y W. E.Oates (Fiscal Federalism, New York, Harcourt Brace, 1972; y Towards a Second Generation Theory of Fiscal Federalism, Revised Draft. August, 2004.

  17. Recent Accomplishments in Laser-Photovoltaic Wireless Power Transmission (United States)

    Fikes, John C.; Henley, Mark W.; Mankins, John C.; Howell, Joe T.; Fork, Richard L.; Cole, Spencer T.; Skinner, Mark


    Wireless power transmission can be accomplished over long distances using laser power sources and photovoltaic receivers. Recent research at AMOS has improved our understanding of the use of this technology for practical applications. Research by NASA, Boeing, the University of Alabama-Huntsville, the University of Colorado, Harvey Mudd College, and the Naval Postgraduate School has tested various commercial lasers and photovoltaic receiver configurations. Lasers used in testing have included gaseous argon and krypton, solid-state diodes, and fiber optic sources, at wavelengths ranging from the visible to the near infra-red. A variety of Silicon and Gallium Arsenide photovoltaic have been tested with these sources. Safe operating procedures have been established, and initial tests have been conducted in the open air at AMOS facilities. This research is progressing toward longer distance ground demonstrations of the technology and practical near-term space demonstrations.

  18. All or nothing: On the small fluctuations of two-dimensional string theoretic black holes

    Energy Technology Data Exchange (ETDEWEB)

    Gilbert, Gerald [Univ. of Maryland, College Park, MD (United States); Raiten, Eric [Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)


    A comprehensive analysis of small fluctuations about two-dimensional string-theoretic and string-inspired black holes is presented. It is shown with specific examples that two-dimensional black holes behave in a radically different way from all known black holes in four dimensions. For both the SL(2,R)/U(1) black hole and the two-dimensional black hole coupled to a massive dilaton with constant field strength, it is shown that there are a {\\it continuous infinity} of solutions to the linearized equations of motion, which are such that it is impossible to ascertain the classical linear response. It is further shown that the two-dimensional black hole coupled to a massive, linear dilaton admits {\\it no small fluctuations at all}. We discuss possible implications of our results for the Callan-Giddings-Harvey-Strominger black hole.

  19. Molecular Dynamics Simulations of a Linear Nanomotor Driven by Thermophoretic Forces

    DEFF Research Database (Denmark)

    Zambrano, Harvey A; Walther, Jens Honore; Jaffe, Richard L.

    Molecular Dynamics of a Linear Nanomotor Driven by Thermophoresis Harvey A. Zambrano1, Jens H. Walther1,2 and Richard L. Jaffe3 1Department of Mechanical Engineering, Fluid Mechanics, Technical University of Denmark, DK-2800 Lyngby, Denmark; 2Computational Science and Engineering Laboratory, ETH...... future molecular machines a complete understanding of the friction forces involved on the transport process at the molecular level have to be addressed.18 In this work we perform Molecular Dynamics (MD) simulations using the MD package FASTTUBE19 to study a molecular linear motor consisting of coaxial...... the valence forces within the CNT using Morse, harmonic angle and torsion potentials.19We include a nonbonded carbon-carbon Lennard-Jones potential to describe the vdW interaction between the carbon atoms within the double wall portion of the system. We equilibrate the system at 300K for 0.1 ns, by coupling...

  20. Counting surface-kernel epimorphisms from a co-compact Fuchsian group to a cyclic group with motivations from string theory and QFT

    Directory of Open Access Journals (Sweden)

    Khodakhast Bibak


    Full Text Available Graphs embedded into surfaces have many important applications, in particular, in combinatorics, geometry, and physics. For example, ribbon graphs and their counting is of great interest in string theory and quantum field theory (QFT. Recently, Koch et al. (2013 [12] gave a refined formula for counting ribbon graphs and discussed its applications to several physics problems. An important factor in this formula is the number of surface-kernel epimorphisms from a co-compact Fuchsian group to a cyclic group. The aim of this paper is to give an explicit and practical formula for the number of such epimorphisms. As a consequence, we obtain an ‘equivalent’ form of Harvey's famous theorem on the cyclic groups of automorphisms of compact Riemann surfaces. Our main tool is an explicit formula for the number of solutions of restricted linear congruence recently proved by Bibak et al. using properties of Ramanujan sums and of the finite Fourier transform of arithmetic functions.

  1. Transforming p21 ras protein: flexibility in the major variable region linking the catalytic and membrane-anchoring domains

    DEFF Research Database (Denmark)

    Willumsen, B M; Papageorge, A G; Hubbert, N


    or increasing it to 50 amino acids has relatively little effect on the capacity of the gene to induce morphological transformation of NIH 3T3 cells. Assays of GTP binding, GTPase and autophosphorylating activities of such mutant v-rasH-encoded proteins synthesized in bacteria indicated that the sequences...... that is required for post-translational processing, membrane localization and transforming activity of the proteins. We have now used the viral oncogene (v-rasH) of Harvey sarcoma virus to study the major variable region by deleting or duplicating parts of the gene. Reducing this region to five amino acids...... that encode these biochemical activities are located upstream from the major variable region. In the context of transformation, we propose that the region of sequence heterogeneity serves principally to connect the N-terminal catalytic domain with amino acids at the C terminus that are required to anchor...

  2. Validity of purchasing power parity for selected Latin American countries: Linear and non-linear unit root tests

    Directory of Open Access Journals (Sweden)

    Claudio Roberto Fóffano Vasconcelos


    Full Text Available The aim of this study is to examine empirically the validity of PPP in the context of unit root tests based on linear and non-linear models of the real effective exchange rate of Argentina, Brazil, Chile, Colombia, Mexico, Peru and Venezuela. For this purpose, we apply the Harvey et al. (2008 linearity test and the non-linear unit root test (Kruse, 2011. The results show that the series with linear characteristics are Argentina, Brazil, Chile, Colombia and Peru and those with non-linear characteristics are Mexico and Venezuela. The linear unit root tests indicate that the real effective exchange rate is stationary for Chile and Peru, and the non-linear unit root tests evidence that Mexico is stationary. In the period analyzed, the results show support for the validity of PPP in only three of the seven countries.

  3. Transmetodología en tiempos de fascismo social

    Directory of Open Access Journals (Sweden)

    Efendy Maldonado G.


    Full Text Available These critical-reflexive notes seek to problematize the conjuncture in Latin America, from the analysis about the conservative onslaught in the last decade. During this period, the strategic rearrangements of media monopolies have designed efficient symbolic strategies of criminalization, restriction, espionage and discredit of the popular democratic strands in Latin America. The main objective is to contribute to the strengthening of critical thinking in communication. The arguments are constructed in dialogue with Sartre, Mattelart, Assange, Harnecker, Chomsky, Ianni, Eco, Verón, Ford, Toscani, Harvey, Clausewitz, Giap, Hobsbawm Gates Jr. and Marx. Critical investigations have confirmed the offensive of the neo-conservative media oligarchies in its intention to maintain the current power settingsof exclusion, authoritarianism and injustice.

  4. The Right to the City: From Henri Lefebvre to the Analysis about the Contemporary Capitalist City

    Directory of Open Access Journals (Sweden)

    Frank Molano Camargo


    Full Text Available The right to the city, defined by Henri Lefebvre in 1967 as the right of urban inhabitants to build, decide and create the city, and make of it a privileged space of anti-capitalist struggle, is again at the center of political debate. Social scientists, social movements, international aid agencies and States take it as a benchmark for policy analysis and to discuss the urban changes in contemporary capitalist cities. This article discusses the assumptions made by Lefebvre in 1967 and the transformation that the concept of right to the city has had from authors such as David Harvey, Edward Soja and Ana Fani Alessandri Carlos.

  5. Public Space, Public Waste, and the Right to the City. (United States)

    Chikarmane, Poornima


    I draw on my experiences as an organizer with a waste-pickers collective, Kagad Kach Patra Kashtakari Panchayat in Pune, India, to reflect on the power dynamics in control of public space. The Pune Municipal Corporation (PMC), a public body, has used public resources to facilitate and enable accumulation by private companies, who have not been able to produce what they had committed to in the processing of waste. The waste pickers, in alliance with affected village-based land agitation committees, have mobilized against the dumping that is ruining their way of life, environments, and health, and are fighting for their own integration into waste value chains. The article uses the frame of David Harvey's(1) "right to the city"; a key part of the mobilizing work with waste pickers has been Freirean conscientization methods to spread awareness of the economic importance, to the city and to the planet, of waste recycling. © The Author(s) 2016.


    Directory of Open Access Journals (Sweden)

    José Arnaldo dos Santos Ribeiro Junior


    Full Text Available Este trabalho busca introduzir uma leitura geográfica da economia política contemporânea enfatizando a relação entre a acumulação primitiva, capital fictício e acumulação por espoliação. Primeiro retorna-se ao conceito marxiano de acumulação primitiva. Em seguida, baseando-se em F. Chesnais, estabelece-se a relação da acumulação primitiva com o capital fictício. Por fim, pontua-se a dialética entre os dois fenômenos e o conceito de acumulação por espoliação de D. Harvey.

  7. Inklusion af elever med autisme og ADHD i skoleidrætten - er det muligt?

    DEFF Research Database (Denmark)

    Bentholm, Anette Lisbeth

    Goffmans teorier om Stigma (2014) og Hverdagslivets rollespil (2014). Hovedresultater og konklusioner: De igangværende analyser tyder på, at størrelsen af den sociale enhed og holddannelsen i idrætstimerne har stor indflydelse på den inkluderende proces. Idrætslærernes undervisningsmæssige og skolens...... ADHD har en udviklingsforstyrrelse, der ofte påvirker deres sociale kommunikation, kognition og motorik (Harvey & Reid, 2003). Deres trivsel og deltagelsesgrad i skolen er generelt mindre end deres jævnaldrende uden diagnoser (Christensen & Nielsen, 2015), og målgruppen synes svær at inkludere. Det...... pædagogisk konsulent i Aalborg Kommune, samt Social Network Analysis for at vurdere elevernes sociale status i idrætstimerne. Empirien er indsamlet i 2015 og analyseres ud fra processociolog Norbert Elias teorier om The Civilizing process (1994) og The Established and Outsiders (1994) og mikrosociolog Erving...

  8. Thermal radiosensitization in heat- and radiation-sensitive mutants of CHO cells

    International Nuclear Information System (INIS)

    Kampinga, H.H.; Kanon, B.; Konings, A.W.T.; Stackhouse, M.A.; Bedford, J.S.


    In the current study, the extent of hyperthermic radiosensitization in a new γ-radiation-sensitive cell line, irs-20, recently isolated by Stackhouse and Bedford (1991) and a heat-sensitive mutant hs-36 (Harvey and Bedford 1988) was compared with the radiosensitization of their mutual parent CHO 10B12 cell line. The irs-20 and CHO 10B12 cells have comparable heat (43.5 o C) sensitivities, whereas hs-36 and CHO 10B12 show a similar sensitivity to γ- and X-rays. Radiosensitization due to pre-exposure to 43.5 o C heating of plateau phase cultures was found for all three cell lines, even after relatively mild heat treatment killing <20% of cells. Experiments using CHEF electrophoresis confirmed the dsb repair deficiency of the irs-20 cells (Stackhouse and Bedford 1992) and showed that heat inhibited dsb repair in all three cell lines. (Author)

  9. A case study: Inclusion for children with psychiatric diagnosis in physical education (PE) at primary school

    DEFF Research Database (Denmark)

    Bentholm, Anette Lisbeth

    A case study: Inclusion for children with psychiatric diagnosis in physical education (PE) at primary school.Research bagground and aim:A large majority in the Danish parliament decided in 2012 that more children with special needs for example children with psychiatric diagnosis as autism spectrum...... activities at least 45 minutes each school day (Bekendtgørelse af lov om folkeskolen, 2014). ASD and ADHD are disabling conditions that emerge in childhood and affects social communication and interaction, and often also their motor skill performance and cognition fx. academic skills (Harvey & Reid, 2003...... framework:My overall research design is a Case study, because the research question requires an “in-depth” description and valuable insights to the complexities of the social phenomenon of inclusion and exclusions processes (Flyvbjerg, 2006; Yin, 2014). The research focus on 11 children with psychiatric...

  10. Improved technical efficiency and exogenous factors in transportation demand for energy: An application of structural time series analysis to South Korean data

    International Nuclear Information System (INIS)

    Sa'ad, Suleiman


    This paper stresses the importance of incorporating the effects of improved technical efficiency and exogenous factors when estimating energy demand functions. Using annual time series data for the period 1973-2007 in the STSM (structural time series model) developed by Harvey et al. the paper estimates price and income elasticities of demand for energy as well as the annual growth of the stochastic trend at the end of the estimation period. The results of the study reveal a long-run income elasticity of 1.37 and a price elasticity of -0.19. In addition, the underlying trend is generally stochastic and negatively sloping during the greater part of the estimation period. Finally, the estimated result from the structural time series is compared with the results from the Johansen Cointegration. These results suggest that income is the dominant factor in energy consumption. In addition, the coefficient of linear trend is negative, supporting the results from the STSM.


    Directory of Open Access Journals (Sweden)

    Xavier Arbós Marín


    Full Text Available This article is a revised analysis ofthe work by Lazar, Telford andWatts (2003 The Impact of Globaland Regional Integration on FederalSystems. A ComparativeAnalysis, Harvey Lazar, HamishTelford and Ronald L. Watts (eds.:The Impact of Global and RegionalIntegration on Federal Systems.A Comparative Analysis,Montreal and Kingston: McGill-Queen’s University Press, 2003.The article’s starting point is thebook’s mainthesis, that is, an analysisof the consequences that suchdifferent integration processescan have both on the institutionalstructures and on the collectiveidentities of federal systems; inthis sense and in the light of thesechanging pressures on the natureof federalism, the article raises aquestion: to what extent federalismand federal arrangementswould remain a reference for carryingout institutional reforms aswell as for a politically and sociallypracticable system.

  12. Universics: a Theory of Universes of Discourse for Metamathematics and Foundations

    Directory of Open Access Journals (Sweden)

    Ioachim Drugus


    Full Text Available A new type of structures called ``universes'' is introduced to subsume the ``von Neumann universe'', ``Grothendieck universes'' and ``universes of discourse'' of various theories. Theories are also treated as universes, ``universes of ideas'', where ``idea" is a common term for assertions and terms. A dualism between induction and deduction and their treatment on a common basis is provided. The described approach referenced as ``universics'' is expected to be useful for metamathematical analysis and to serve as a foundation for mathematics. As a motivation for this research served the Harvey Friedman's desideratum to develop a foundational theory based on ``induction construction'', possibly comprising set theory. This desideratum emerged due to ``foundational incompleteness'' of set theory. The main results of this paper are an explication of the notion ``foundational completeness'', and a generalization of well-founded-ness.

  13. Comparison of three commercial fecal calprotectin ELISA test kits used in patients with Inflammatory Bowel Disease

    DEFF Research Database (Denmark)

    Mirsepasi-Lauridsen, Hengameh Chloé; Bachmann Holmetoft, Ulla; Halkjær, Sofie Ingdam


    OBJECTIVE: Fecal calprotectin is a noninvasive marker of intestinal inflammation used to distinguish between functional and organic bowel diseases and to evaluate disease activity among patients with Inflammatory Bowel Disease (IBD). The goal of this study was to compare three different ELISA tests...... and 18 to 67 years, respectively. Disease activity in the patients was established using the following clinical activity indices: the Simple Clinical Colitis Activity Index (SCCAI), the Harvey Bradshaw Index (HBI) and the Modified Pouchitis Disease Activity Index (MPDAI). Three ELISA calprotectin tests...... (EK-CAL, CALPRO and HK325) were performed on fecal specimens and results compared. RESULTS: The CALPRO calprotectin ELISA test was shown to have the best specificity of 96% compared to the HK325 and the EK-CAL calprotectin ELISA tests with 28% specificity and 74% specificity, respectively...

  14. The relationship between coping, health competence and patient participation among patients with inactive inflammatory bowel disease. (United States)

    Gandhi, Seema; Jedel, S; Hood, M M; Mutlu, E; Swanson, G; Keshavarzian, A


    Coping is an integral part of adjustment for patients with Inflammatory Bowel Disease but has not been well described in the literature. This study explored the relationship between coping, perceived health competence, patient preference for involvement in their treatment, depression and quality of life, particularly among patients with inactive disease (in remission). Subjects (n=70) with active and inactive IBD completed questionnaires, including the Inflammatory Bowel Disease Quality of Life Questionnaire, Beck Depression Inventory, Perceived Health Competence Scale and the Coping Inventory for Stressful Situations. The Harvey Bradshaw Index measured disease activity. Patients with inactive IBD demonstrated significantly more interest in participating in their treatment (pperceived health competence (p=.001), less depressive symptoms (pperceived control of their health, and exhibit less depression symptoms. Our findings may increase awareness of the importance of identifying coping strategies for IBD patients, including those in remission. © 2013.

  15. [Negotiating light therapy. Kellogg versus Finsen, and the controversy about the health effects of light rays around 1900]. (United States)

    Ingold, Niklaus


    Western medicine has produced different rationales for the application of light rays to cure diseases in the 201h century. Since the 1980s, physicians have used bright light for treating mental disorders. In the interwar period, however, physicians regarded ultraviolet rays rather than bright light as medically relevant. This view goes back to the 1890s, when the physician (and later Nobel Price laureate) Niels R. Finsen started treating skin tuberculosis with light rays. However, Finsen was not the only physician who utilized the new electric light to develop effective therapies. Famous American inventor of the breakfast cereal and eugenicists, John Harvey Kellogg used incandescent lamps to heat a sweatbox. Consequently, two different therapeutic schools emerged from these therapeutic experiments. This article shows how these two schools negotiated the use of light therapy and how a specific idea of medically interesting light rays emerged thereby.

  16. "Weak-Center" Gentrification and the Contradictions of Containment: deconcentrating poverty in downtown Los Angeles. (United States)

    Reese, Ellen; DeVerteuil, Geoffrey; Thach, Leanne


    This case study of recent efforts to deconcentrate poverty within the Skid Row area of Los Angeles examines processes of "weak-center" gentrification as it applies to a "service dependent ghetto," thus filling two key gaps in prior scholarship. We document the collaboration between the government, business and development interests, and certain non-profit agencies in this process and identify two key mechanisms of poverty deconcentration: housing/service displacement and the criminalization of low income residents. Following Harvey, we argue that these efforts are driven by pressures to find a "spatial fix" for capital accumulation through Downtown redevelopment. This process has been hotly contested, however, illustrating the strength of counter-pressures to gentrification/poverty deconcentration within "weak-center" urban areas.

  17. Staff members with 25 years' service at CERN in 2015

    CERN Document Server

    HR Department


    The 30 staff members who have spent 25 years within CERN in 2015 were invited by the Director-General to a reception in their honour on 10 December.        Renaud Barillere EN   Edgar Birker  DG   Sergio Calatroni  TE   Paola Catapano  DG   Christophe  Delamare GS   Philippe Farthouat  PH   Roger Forty  PH   Yves Gaillard   TE   Clara Gaspar  PH   Jean-Christophe  Gayde  EN   Hubert   Gerwig PH   Simone  Giani PH   Jean-Pierre Granchelli  EN   Juan Guijarro  IT   Helene Haller  PH   John Harvey  PH   Vincenzo Innocente PH ...

  18. Imágenes de la diversidad. El movimiento de liberación LGTB tras el velo del cine

    Directory of Open Access Journals (Sweden)

    Nina Chaparro


    Full Text Available El arte cinematográfico ha reflejado desde sus inicios el discurso y la estética queer y se ha convertido en una de las representaciones más importantes de su experiencia. Stonewall, Mi nombre es Harvey Milk y Filadelfia se encargaron de trazar el recorrido del movimiento estadunidense por los derechos LGBT, enmarcado en tres décadas de alta recordación y desde la perspectiva de sus realizadores. Sin embargo, detrás de lo que la imagen cuenta se esconde el relato de tres momentos determinantes para el colectivo homosexual, el cual descubre que el poder y el derecho además de ser masculinos son heterosexuales y, así mismo, legislan.

  19. Our land, our language: connecting dispossession and health equity in an indigenous context. (United States)

    Brown, Helen J; McPherson, Gladys; Peterson, Ruby; Newman, Vera; Cranmer, Barbara


    For contemporary Indigenous people, colonial relations (past and present) intersect with neoliberal policies and practices to create subtle forms of dispossession.These undermine the health of Indigenous peoples and create barriers restricting access to appropriate health services. Integrating insights from the critical geographer David Harvey, the authors demonstrate how the dispossession of land and language threaten health and well-being and worsen existing illness conditions. Drawing on the qualitative findings from a program of community-based research with the 'Namgis First Nation in the Canadian province of British Columbia, the authors argue for an account of how neoliberal mechanisms operate to further the "accumulation by dispossession" associated with historical and ongoing colonialism. Specifically, they show how neoliberal ideologies operate to sustain medical colonialism and health inequities for Indigenous peoples. The authors discuss the implications for nursing actions to achieve health equity in rural First Nations communities.

  20. The Donders model of the circulation in normo- and pathophysiology

    DEFF Research Database (Denmark)

    Noordergraaf, Gerrit J.; Ottesen, Johnny T.; Kortsmit, Wil J.P.M.


    the continuum of physiological conditions to cardiopulmonary resuscitation effects within the circulation.   Within the model, Harvey's view of the circulation has been broadened to include impedance-defined flow as a unifying concept. The cardiac function curve, the relation between ventricular filling...... and output, changes during exercise. First, it rotates counterclockwise and stretches along the output axis, second, it shifts along the filling axis. The first is induced by sympathetic control, the second by respiratory control. The model shows that depth of respiration, sympathetic stimulation of cardiac......A model of the closed human cardiovascular loop is developed. This model, using one set of 88 equations, allows variations from normal resting conditions to exercise, as well as to the extreme condition of a circulation following cardiac arrest. The principal purpose of the model is to evaluate...

  1. Improved technical efficiency and exogenous factors in transportation demand for energy: An application of structural time series analysis to South Korean data

    Energy Technology Data Exchange (ETDEWEB)

    Sa' ad, Suleiman [Surrey Centre for Energy Economics (SEEC), University of Surrey, Guildford (United Kingdom)


    This paper stresses the importance of incorporating the effects of improved technical efficiency and exogenous factors when estimating energy demand functions. Using annual time series data for the period 1973-2007 in the STSM (structural time series model) developed by Harvey et al. the paper estimates price and income elasticities of demand for energy as well as the annual growth of the stochastic trend at the end of the estimation period. The results of the study reveal a long-run income elasticity of 1.37 and a price elasticity of -0.19. In addition, the underlying trend is generally stochastic and negatively sloping during the greater part of the estimation period. Finally, the estimated result from the structural time series is compared with the results from the Johansen Cointegration. These results suggest that income is the dominant factor in energy consumption. In addition, the coefficient of linear trend is negative, supporting the results from the STSM. (author)

  2. Early descriptions of acromegaly and gigantism and their historical evolution as clinical entities. (United States)

    Mammis, Antonios; Eloy, Jean Anderson; Liu, James K


    Giants have been a subject of fascination throughout history. Whereas descriptions of giants have existed in the lay literature for millennia, the first attempt at a medical description was published by Johannes Wier in 1567. However, it was Pierre Marie, in 1886, who established the term "acromegaly" for the first time and established a distinct clinical diagnosis with clear clinical descriptions in 2 patients with the characteristic presentation. Multiple autopsy findings revealed a consistent correlation between acromegaly and pituitary enlargement. In 1909, Harvey Cushing postulated a “hormone of growth" as the underlying pathophysiological trigger involved in pituitary hypersecretion in patients with acromegaly. This theory was supported by his observations of clinical remission in patients with acromegaly in whom he had performed hypophysectomy. In this paper, the authors present some of the early accounts of acromegaly and gigantism, and describe its historical evolution as a medical and surgical entity.

  3. Status of groundwater levels and storage volume in the Equus Beds aquifer near Wichita, Kansas, January 2006 to January 2010 (United States)

    Hansen, Cristi V.; Aucott, Walter R.


    A part of the Equus Beds aquifer in southwestern Harvey County and northwestern Sedgwick County was developed to supply water to residents of Wichita and for irrigation in south-central Kansas. Groundwater pumping for city and agricultural use caused water levels to decline in a large part of the aquifer northwest of Wichita. In 1965, the city of Wichita began using water from Cheney Reservoir in addition to water from the Equus Beds aquifer to meet the city's increasing demand for water. Irrigation pumpage in the area increased substantially during the 1970s and 1980s and contributed to the water-level declines. Water-level declines reached their maximum to date in October 1992.

  4. Mobilitet i børnehøjde

    DEFF Research Database (Denmark)

    Fotel, Trine

    studies of a suburban and urban residential area. Access to the 36 children aged 11-12 and their parents, has been through the two local schools. The methods used forms a collage and aims at understanding the phenomenon ‘mobility' from a child's perspectives as well as explaining some of the processes......The thesis Child-wise Mobilities rethinks theoretical and analytical relations between mobility and welfare in everyday practices. It concentrates on children's perspectives but includes also relations to parents' mobility practices and perspectives. The methodological design is based on two case...... is currently part of ‘childhood'; this sociological view of the child is also positioned by, amongst others, Qvortrup, Corsaro, and James, Jenks & Prout. Finally, a lot of other theoretical perspectives are used in order to discuss aspects in relation to a just production of space (with amongst others Harvey...

  5. A report from America: Baby M. (United States)

    Rachels, James


    Rachels reviews the social and legal facts of the celebrated "Baby M" case, in which surrogate Mary Beth Whitehead attempted to keep the daughter she had borne under contract to William Stern. The first phase of the legal battle between the parents ended in March 1988, when New Jersey Superior Court Judge Harvey R. Sorkow upheld the validity of the surrogacy contract, terminated Whitehead's parental rights, and awarded custody of the child to Stern. Rachels comments on public reaction to "Baby M," on Sorkow's decision, and on the impact the case may have on legislative attempts to regulate surrogacy. He also uses the example of "Baby M," as well as that of California heart transplant patient "Baby Jesse," to discuss how the media sensationalize controversial issues.

  6. What is human in humans? Responses from biology, anthropology, and philosophy. (United States)

    Bibeau, Gilles


    Genomics has brought biology, medicine, agriculture, psychology, anthropology, and even philosophy to a new threshold. In this new context, the question about "what is human in humans" may end up being answered by geneticists, specialists of technoscience, and owners of biotech companies. The author defends, in this article, the idea that humanity is at risk in our age of genetic engineering, biotechnologies, and market-geared genetic research; he also argues that the values at the very core of our postgenomic era bring to its peak the science-based ideology that has developed since the time of Galileo, Newton, Descartes, and Harvey; finally, it shows that the bioindustry has invented a new genomythology that goes against the scientific evidence produced by the research in human sciences in which life is interpreted as a language.

  7. The social logic of boxing in black Chicago. Towards a sociology of pugilism

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    Loïc J. D. Wacquant


    Full Text Available This paper is dedicated to the memory of Aaron, Spanish manchild and gym buddy, whom the ring could not save from the street. This paper benefited from the reactions, critical comments and encouragement of a number of colleagues, among whom Pierre Bourdieu, Rogers Brubaker, Dan Chambliss, Lynn S. Chancer, Rick Fantasia, Harvey Molotch, Bill Wilson, and members of the Center for European Sociology in Paris. My gratitude also goes to my colleagues in the "sweet science" who taught me much more than how to throw a left jab, and to the friends and family who supported me morally during this strenuous project (with special mention to Elizabeth Bonamour du Tartre for a major on-site assist. This research was made possible in part by the financial support of the Maison des sciences de l'homme, a Lavoisier Fellowship from the French governement, and the Milton Fund of Harvard University.

  8. Medición del índice de refracción del agua usando materiales sencillos

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    Esteban Szigety


    Full Text Available En este trabajo se describe la construcción de un dispositivo con materiales sencillos, para determinar el índice de refracción del agua, que puede ser adaptado para otras sustancias. Existen distintos métodos de laboratorio que con ayuda de instrumentaladecuado permiten realizar la medición del índice de refracción: método de Pfund (láser, método de alturas aparentes (microscopio y método del ángulo de desviación mínima (espectrómetro, entre otros (Harvey Palmer, 1969; Wood, 1988; Hecht, 2000.

  9. Dr. Lenke Horvath (1917-1991): Creator of Pediatric Neurosurgery in Romania. (United States)

    Mohan, Dumitru; Moisa, Horatiu Alexandru; Nica, Dan Aurel; Ciurea, Alexandru Vlad


    The development of neurosurgery as an independent specialty took place with great difficulty in Romania. In this respect, the most revered personalities are those of Professor Alexandru Moruzzi (1900-1957) (in Iasi) and Professor Dimitrie Bagdasar (1893-1946) (in Bucharest), who are the fathers of modern neurosurgery in Romania. Professor Bagdasar was schooled in Professor Harvey Cushing's clinic in Boston and is credited with creating the first completely independent neurosurgical unit in Romania. His legacy was carried on with honor by Professor Constantin Arseni (1912-1994), who, in 1975, tasked Dr. Lenke Horvath (1917-1991) with creating the first autonomous pediatric neurosurgery unit in Bucharest. This article is a small tribute to the founder of pediatric neurosurgery in Romania and one of the female pioneer neurosurgeons, who, by personal example of dedication and hard work, radically changed medical thinking and neurosurgery in Romania. Copyright © 2016 Elsevier Inc. All rights reserved.

  10. For An Urban Wikipedia. The Challenges of the Urban Project. Maurizio Carta

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    Maurizio Carta


    Full Text Available The city is the pre-eminent encyclopedia of the community, a place where all the components of life, its definition and all its reciprocal relationships are found (Harvey 1989.  In the urban century in which we all are immersed goes from the encyclopedia to the urban Wikipedia: that is a collective, cognitive project in which the inhabitants and the operators, the decision-makers and the participants, the project makers and the actors make up the structure, continually enriching it with the change of practices, with the interpretation of its meanings and intentions. In order to make, understand, represent and transmit the urban Wikipedia, its chronological stratification, its spatial creases, its architectural harmony and often even its social dissonance, we are obliged to create a new epistemology which is capable of evaluating and of utilizing the multiplicity of territorial identities and that knows how to activate new forms of project making.

  11. Leitura epistemológica da evolução do pensamento geográfico na teoria social crítica

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    Crizan Graça de Souza


    Full Text Available This article does a reading in the studies of Harvey (2004, Milton Santos (2006 and soya (1993, demonstrating the category while Space, spatiality, space-time and content on reaffirmation of critical social theory in the configuration of the dilemma of Postmodernity in geographic thinking. To this end, the purpose of this article was to analyze the concept space the aforementioned category and identify your importance in the current context. On the exposed, we entered in the diversity of concepts and visions about the geographical space and will delight in the form, as was seen in the remaining time of geographical science in your process of evolution. Thus, the spatial relationships were becoming increasingly contradictory and often difficult to understand, in this sense the concept of space is shaped, adapted and came to explain such setbacks.

  12. Review of The Triumph of Numbers by I. B. Cohen

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    H.L. Vacher


    Full Text Available I. Bernard Cohen, The Triumph of Numbers: How Counting Shaped Modern Life. (New York: W.W. Norton & Company, 2005. 209 pp. $24.95 (USA. ISBN 0-393-05769-0.The premier historian of science ends his career telling how the world has become awash in numbers—“how numbers entered the conduct of life and of government, the understanding of nature, and the analysis of societies.” The stories begin with Kepler and end with Florence Nightingale. In between, major players include Galileo, Harvey, Leeuwenhoek, and Halley; Graunt and Petty; Jefferson and Franklin; Lavoisier, Sinclair, Pinel and Louis; Guerry and Quetelet. The book tells of the spread of what Cohen refers to as the “quantifying spirit” from physical science to “political arithmetic” (Sir William Petty, economics, and the beginning of psychiatry, sociology, medical statistics, and public health.

  13. Information Systems Coordinate Emergency Management (United States)


    The rescue crews have been searching for the woman for nearly a week. Hurricane Katrina devastated Hancock County, the southernmost point in Mississippi, and the woman had stayed through the storm in her beach house. There is little hope of finding her alive; the search teams know she is gone because the house is gone. Late at night in the art classroom of the school that is serving as the county s emergency operations center, Craig Harvey is discussing the search with the center s commander. Harvey is the Chief Operating Officer of a unique company called NVision Solutions Inc., based at NASA s Stennis Space Center in Bay St. Louis, only a couple of miles away. He and his entire staff have set up a volunteer operation in the art room, supporting the emergency management efforts using technology and capabilities the company developed through its NASA partnerships. As he talks to the commander, Harvey feels an idea taking shape that might lead them to the woman s location. Working with surface elevation data and hydrological principles, Harvey creates a map showing how the floodwaters from the storm would have flowed along the topography of the region around the woman s former home. Using the map, search crews find the woman s body in 15 minutes. Recovering individuals who have been lost is a sad reality of emergency management in the wake of a disaster like Hurricane Katrina in 2005. But the sooner answers can be provided, the sooner a community s overall recovery can take place. When damage is extensive, resources are scattered, and people are in dire need of food, shelter, and medical assistance, the speed and efficiency of emergency operations can be the key to limiting the impact of a disaster and speeding the process of recovery. And a key to quick and effective emergency planning and response is geographic information. With a host of Earth-observing satellites orbiting the globe at all times, NASA generates an unmatched wealth of data about our ever

  14. Counting surface-kernel epimorphisms from a co-compact Fuchsian group to a cyclic group with motivations from string theory and QFT

    Energy Technology Data Exchange (ETDEWEB)

    Bibak, Khodakhast, E-mail:; Kapron, Bruce M., E-mail:; Srinivasan, Venkatesh, E-mail:


    Graphs embedded into surfaces have many important applications, in particular, in combinatorics, geometry, and physics. For example, ribbon graphs and their counting is of great interest in string theory and quantum field theory (QFT). Recently, Koch et al. (2013) gave a refined formula for counting ribbon graphs and discussed its applications to several physics problems. An important factor in this formula is the number of surface-kernel epimorphisms from a co-compact Fuchsian group to a cyclic group. The aim of this paper is to give an explicit and practical formula for the number of such epimorphisms. As a consequence, we obtain an ‘equivalent’ form of Harvey's famous theorem on the cyclic groups of automorphisms of compact Riemann surfaces. Our main tool is an explicit formula for the number of solutions of restricted linear congruence recently proved by Bibak et al. using properties of Ramanujan sums and of the finite Fourier transform of arithmetic functions.

  15. Speculations regarding the history of Donum Vitae. (United States)

    Harvey, J C


    In March 1987, the Vatican published Instruction on Respect for Human Life in its Origin and on the Dignity of Procreation, also known as Donum Vitae. Prepared by the Roman Catholic Church's Congregation for the Doctrine of the Faith (CDF), Donum Vitae is intended as a magisterial teaching document that invites further reflection on the relationship between natural moral law and reproductive technologies such as in vitro fertilization. To aid it in its work, the CDF consulted anonymous religious and lay experts in the fields of moral theology, genetics, biology, medicine, and physiology. Harvey speculates on the history of Donum Vitae's preparation, particularly as to the identities of the individuals whom the CDF consulted. He raises the possibility of a biased consultation process, one that called upon moral theologians whose views would be known to support pre-established conclusions.

  16. Record length, mass, and clutch size in the nonindigenous Burmese Python, Python bivittatus Kuhl 1820 (Squamata: Pythonidae), in Florida (United States)

    Krysko, Kenneth L.; Hart, Kristen M.; Smith, Brian J.; Selby, Thomas H.; Cherkiss, Michael S.; Coutu, Nicholas T.; Reichart, Rebecca M.; Nuñez, Leroy P.; Mazzotti, Frank J.; Snow, Ray W.


    The Burmese Python, Python bivittatus Kuhl 1820 (Squamata: Pythonidae), is indigenous to northern India,east to southern China, and south to Vietnam and a few islands in Indonesia (Barker and Barker 2008, Reed and Rodda 2009). This species has been introduced since at least 1979 in southern Florida, USA, where it likely began reproducing and became established during the 1980s (Meshaka et al. 2000, Snowet al. 2007b,Kraus 2009, Krysko et al. 2011, Willson et al. 2011). Python bivittatus has been documented in Florida consuming a variety of mammals and birds, and the American Alligator(Alligator mississippiensis) (Snowet al. 2007a, 2007b; Harvey et al. 2008; Rochford et al. 2010b; Holbrook and Chesnes 2011), many of which are protected species. Herein, we provide details on two of the largest known wild P. bivittatus in Florida to date, including current records on length,mass,clutch size, and diet.

  17. Arendt y el nuevo imperialismo

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    Arribas, Sonia


    Full Text Available In this article I firstly reconstruct the main theses of the first chapter of the second part of The Origins of Totalitarianism: “The political emancipation of the bourgeoisie”. Arendt argues here that imperialism at the end of the 19th and the beginning of the 20th centuries was the consequence of two conflicting logics: that of the geographically bounded nation-state, and that of the unlimited expansion of the capitalist economy. Secondly, I show how this idea of two conflicting logics has been recently taken over by different social analysts to investigate the world geopolitical and economic situation during the presidential mandate of George Bush Jr. -a period that David Harvey has once again called, like the thirty year period investigated by Arendt, “the new imperialism”.

    Se reconstruyen en primer lugar las tesis centrales que aparecen en el primer capítulo “La emancipación política de la burguesía” de la segunda parte de los Orígenes del Totalitarismo. Arendt argumenta aquí que el imperialismo de finales del siglo XIX y principios del siglo XX fue la consecuencia de dos lógicas en conflicto: la del estado-nación europeo, acotada a un emplazamiento geográfico, y la de la expansión ilimitada de la economía capitalista. En segundo lugar, se expone cómo esta idea de las dos lógicas en conflicto ha sido retomada recientemente por diversos analistas sociales para investigar la coyuntura geopolítica y económica mundial coincidente con el período de mandato presidencial de George Bush Jr., –un período que David Harvey ha venido a redominar, como ya se llamó el lapso


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    Full Text Available La reestructuración económica mundial actual, caracterizada por complejos procesos económicos y sociales a escala internacional, reconoce nuevas formas en el territorio. Las ciudades retoman un nuevo sentido en este contexto acelerado y vertiginoso de cambios permanentes que se manifiestan en distintas modalidades, muchas veces contradictorias y simultáneas espacial y temporalmente, de dispersión/contracción urbana, des- industrialización, re- industrialización, terciarización y cuaterciarización, entre otras. En la ciudad de Córdoba, se observa una marcada expansión de la actividad inmobiliaria y de la construcción en el área central de la ciudad. Esto exacerba el valor del suelo urbano y produce una revalorización inmobiliaria en las áreas mencionadas, que es demandada por grandes inversores. En expresiones de Harvey, la ciudad se convierte en foco para la inversión y se da una relación de vital importancia entre los flujos de inversión en el entorno construido y la tendencia hacia la sobre- acumulación (Harvey, 2004. Este trabajo aborda la encrucijada de la ciudad en donde las “normas” generales que regulan el mercado de suelo tienden a esfumarse frente al capital inmobiliario, quedando la ciudad cada vez mas privatizada y cada vez mas lejos de ser un espacio que garantice la sociabilidad y equidad para sus habitantes.

  19. American views of Sir Victor Horsley in the era of Cushing. (United States)

    Lehner, Kurt R; Schulder, Michael


    Sir Victor Horsley was a pioneering British neurosurgeon known for his numerous neurosurgical, scientific, and sociopolitical contributions. Although word of these surgical and scientific achievements quickly spread throughout Europe and North America in the late 19th century, much of modern neurosurgery's view of Horsley has been colored by a single anecdote from John Fulton's biography of Harvey Cushing. In this account, Cushing observes a frenetic Horsley hastily removing a Gasserian ganglion from a patient in the kitchen of a British mansion. Not long after, Cushing left Britain saying that he had little to learn from British neurosurgery. The authors of this paper examined contemporary views of Horsley to assess what his actual reputation was in the US and Canada. The authors conducted a thorough search of references to Horsley using the following sources: American surgical and neurosurgical textbooks; major biographies; diary entries and letters; PubMed; newspaper articles; and surgical and neurosurgical texts. The positive reception of his work is corroborated by invitations for Horsley to speak in America. Research additionally revealed that Horsley had numerous personal and professional relationships with prominent Americans in medicine, including William Osler, John Wheelock Elliot, Ernest Sachs, and (yes) Harvey Cushing. Horsley's contributions to medicine and science were heavily reported in American newspapers; outside of neurosurgery, his strong opposition to the antivivisectionists and his support for alcohol prohibition were widely reported in popular media. Horsley's contributions to neurosurgery in America are undeniable. Writings from and about prominent Americans reveal that he was viewed favorably by those who had met him. Frequent publication of his views in the American media suggests that medical professionals and the public in the US valued his contributions on scientific as well as social issues. Horsley died too young, but not without the

  20. Cumulative Significance of Hyporheic Exchange and Biogeochemical Processing in River Networks (United States)

    Harvey, J. W.; Gomez-Velez, J. D.


    Biogeochemical reactions in rivers that decrease excessive loads of nutrients, metals, organic compounds, etc. are enhanced by hydrologic interactions with microbially and geochemically active sediments of the hyporheic zone. The significance of reactions in individual hyporheic flow paths has been shown to be controlled by the contact time between river water and sediment and the intrinsic reaction rate in the sediment. However, little is known about how the cumulative effects of hyporheic processing in large river basins. We used the river network model NEXSS (Gomez-Velez and Harvey, submitted) to simulate hyporheic exchange through synthetic river networks based on the best available models of network topology, hydraulic geometry and scaling of geomorphic features, grain size, hydraulic conductivity, and intrinsic reaction rates of nutrients and metals in river sediment. The dimensionless reaction significance factor, RSF (Harvey et al., 2013) was used to quantify the cumulative removal fraction of a reactive solute by hyporheic processing. SF scales reaction progress in a single pass through the hyporheic zone with the proportion of stream discharge passing through the hyporheic zone for a specified distance. Reaction progress is optimal where the intrinsic reaction timescale in sediment matches the residence time of hyporheic flow and is less efficient in longer residence time hyporheic flow as a result of the decreasing proportion of river flow that is processed by longer residence time hyporheic flow paths. In contrast, higher fluxes through short residence time hyporheic flow paths may be inefficient because of the repeated surface-subsurface exchanges required to complete the reaction. Using NEXSS we found that reaction efficiency may be high in both small streams and large rivers, although for different reasons. In small streams reaction progress generally is dominated by faster pathways of vertical exchange beneath submerged bedforms. Slower exchange